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virtualx-engine/scene/gui/rich_text_label.cpp
Hugo Locurcio a06f82ca4d
Add optional constructor arguments to more Control nodes 
This can be used to make editor code more compact.
However, as of writing, these constructor arguments cannot be used
from the scripting API.

This was already provided for Label and CheckBox, but it was missing
for other Control nodes where it made sense to provide a default value.
2022-03-04 09:48:41 +01:00

4744 lines
152 KiB
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/*************************************************************************/
/* rich_text_label.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "rich_text_label.h"
#include "core/math/math_defs.h"
#include "core/os/keyboard.h"
#include "core/os/os.h"
#include "label.h"
#include "scene/scene_string_names.h"
#include "servers/display_server.h"
#include "modules/modules_enabled.gen.h" // For regex.
#ifdef MODULE_REGEX_ENABLED
#include "modules/regex/regex.h"
#endif
RichTextLabel::Item *RichTextLabel::_get_next_item(Item *p_item, bool p_free) const {
if (p_free) {
if (p_item->subitems.size()) {
return p_item->subitems.front()->get();
} else if (!p_item->parent) {
return nullptr;
} else if (p_item->E->next()) {
return p_item->E->next()->get();
} else {
//go up until something with a next is found
while (p_item->parent && !p_item->E->next()) {
p_item = p_item->parent;
}
if (p_item->parent) {
return p_item->E->next()->get();
} else {
return nullptr;
}
}
} else {
if (p_item->subitems.size() && p_item->type != ITEM_TABLE) {
return p_item->subitems.front()->get();
} else if (p_item->type == ITEM_FRAME) {
return nullptr;
} else if (p_item->E->next()) {
return p_item->E->next()->get();
} else {
//go up until something with a next is found
while (p_item->type != ITEM_FRAME && !p_item->E->next()) {
p_item = p_item->parent;
}
if (p_item->type != ITEM_FRAME) {
return p_item->E->next()->get();
} else {
return nullptr;
}
}
}
return nullptr;
}
RichTextLabel::Item *RichTextLabel::_get_prev_item(Item *p_item, bool p_free) const {
if (p_free) {
if (p_item->subitems.size()) {
return p_item->subitems.back()->get();
} else if (!p_item->parent) {
return nullptr;
} else if (p_item->E->prev()) {
return p_item->E->prev()->get();
} else {
//go back until something with a prev is found
while (p_item->parent && !p_item->E->prev()) {
p_item = p_item->parent;
}
if (p_item->parent) {
return p_item->E->prev()->get();
} else {
return nullptr;
}
}
} else {
if (p_item->subitems.size() && p_item->type != ITEM_TABLE) {
return p_item->subitems.back()->get();
} else if (p_item->type == ITEM_FRAME) {
return nullptr;
} else if (p_item->E->prev()) {
return p_item->E->prev()->get();
} else {
//go back until something with a prev is found
while (p_item->type != ITEM_FRAME && !p_item->E->prev()) {
p_item = p_item->parent;
}
if (p_item->type != ITEM_FRAME) {
return p_item->E->prev()->get();
} else {
return nullptr;
}
}
}
return nullptr;
}
Rect2 RichTextLabel::_get_text_rect() {
Ref<StyleBox> style = get_theme_stylebox(SNAME("normal"));
return Rect2(style->get_offset(), get_size() - style->get_minimum_size());
}
RichTextLabel::Item *RichTextLabel::_get_item_at_pos(RichTextLabel::Item *p_item_from, RichTextLabel::Item *p_item_to, int p_position) {
int offset = 0;
for (Item *it = p_item_from; it && it != p_item_to; it = _get_next_item(it)) {
switch (it->type) {
case ITEM_TEXT: {
ItemText *t = (ItemText *)it;
offset += t->text.length();
if (offset > p_position) {
return it;
}
} break;
case ITEM_NEWLINE:
case ITEM_IMAGE:
case ITEM_TABLE: {
offset += 1;
} break;
default:
break;
}
}
return p_item_from;
}
String RichTextLabel::_roman(int p_num, bool p_capitalize) const {
if (p_num > 3999) {
return "ERR";
};
String s;
if (p_capitalize) {
String M[] = { "", "M", "MM", "MMM" };
String C[] = { "", "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM" };
String X[] = { "", "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC" };
String I[] = { "", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX" };
s = M[p_num / 1000] + C[(p_num % 1000) / 100] + X[(p_num % 100) / 10] + I[p_num % 10];
} else {
String M[] = { "", "m", "mm", "mmm" };
String C[] = { "", "c", "cc", "ccc", "cd", "d", "dc", "dcc", "dccc", "cm" };
String X[] = { "", "x", "xx", "xxx", "xl", "l", "lx", "lxx", "lxxx", "xc" };
String I[] = { "", "i", "ii", "iii", "iv", "v", "vi", "vii", "viii", "ix" };
s = M[p_num / 1000] + C[(p_num % 1000) / 100] + X[(p_num % 100) / 10] + I[p_num % 10];
}
return s;
}
String RichTextLabel::_letters(int p_num, bool p_capitalize) const {
int64_t n = p_num;
int chars = 0;
do {
n /= 24;
chars++;
} while (n);
String s;
s.resize(chars + 1);
char32_t *c = s.ptrw();
c[chars] = 0;
n = p_num;
do {
int mod = ABS(n % 24);
char a = (p_capitalize ? 'A' : 'a');
c[--chars] = a + mod - 1;
n /= 24;
} while (n);
return s;
}
void RichTextLabel::_update_line_font(ItemFrame *p_frame, int p_line, const Ref<Font> &p_base_font, int p_base_font_size) {
ERR_FAIL_COND(p_frame == nullptr);
ERR_FAIL_COND(p_line < 0 || p_line >= p_frame->lines.size());
Line &l = p_frame->lines.write[p_line];
RID t = l.text_buf->get_rid();
int spans = TS->shaped_get_span_count(t);
for (int i = 0; i < spans; i++) {
ItemText *it = (ItemText *)(uint64_t)TS->shaped_get_span_meta(t, i);
if (it) {
Ref<Font> font = _find_font(it);
if (font.is_null()) {
font = p_base_font;
}
int font_size = _find_font_size(it);
if (font_size == -1) {
font_size = p_base_font_size;
}
Dictionary font_ftr = _find_font_features(it);
TS->shaped_set_span_update_font(t, i, font->get_rids(), font_size, font_ftr);
}
}
Item *it_to = (p_line + 1 < p_frame->lines.size()) ? p_frame->lines[p_line + 1].from : nullptr;
for (Item *it = l.from; it && it != it_to; it = _get_next_item(it)) {
switch (it->type) {
case ITEM_TABLE: {
ItemTable *table = static_cast<ItemTable *>(it);
for (Item *E : table->subitems) {
ERR_CONTINUE(E->type != ITEM_FRAME); // Children should all be frames.
ItemFrame *frame = static_cast<ItemFrame *>(E);
for (int i = 0; i < frame->lines.size(); i++) {
_update_line_font(frame, i, p_base_font, p_base_font_size);
}
}
} break;
default:
break;
}
}
}
void RichTextLabel::_resize_line(ItemFrame *p_frame, int p_line, const Ref<Font> &p_base_font, int p_base_font_size, int p_width) {
ERR_FAIL_COND(p_frame == nullptr);
ERR_FAIL_COND(p_line < 0 || p_line >= p_frame->lines.size());
Line &l = p_frame->lines.write[p_line];
l.offset.x = _find_margin(l.from, p_base_font, p_base_font_size);
l.text_buf->set_width(p_width - l.offset.x);
if (tab_size > 0) { // Align inline tabs.
Vector<float> tabs;
tabs.push_back(tab_size * p_base_font->get_char_size(' ', 0, p_base_font_size).width);
l.text_buf->tab_align(tabs);
}
Item *it_to = (p_line + 1 < p_frame->lines.size()) ? p_frame->lines[p_line + 1].from : nullptr;
for (Item *it = l.from; it && it != it_to; it = _get_next_item(it)) {
switch (it->type) {
case ITEM_TABLE: {
ItemTable *table = static_cast<ItemTable *>(it);
int hseparation = get_theme_constant(SNAME("table_hseparation"));
int vseparation = get_theme_constant(SNAME("table_vseparation"));
int col_count = table->columns.size();
for (int i = 0; i < col_count; i++) {
table->columns.write[i].width = 0;
}
int idx = 0;
for (Item *E : table->subitems) {
ERR_CONTINUE(E->type != ITEM_FRAME); // Children should all be frames.
ItemFrame *frame = static_cast<ItemFrame *>(E);
for (int i = 0; i < frame->lines.size(); i++) {
int w = _find_margin(frame->lines[i].from, p_base_font, p_base_font_size) + 1;
_resize_line(frame, i, p_base_font, p_base_font_size, w);
}
idx++;
}
// Compute minimum width for each cell.
const int available_width = p_width - hseparation * (col_count - 1);
// Compute available width and total ratio (for expanders).
int total_ratio = 0;
int remaining_width = available_width;
table->total_width = hseparation;
for (int i = 0; i < col_count; i++) {
remaining_width -= table->columns[i].min_width;
if (table->columns[i].max_width > table->columns[i].min_width) {
table->columns.write[i].expand = true;
}
if (table->columns[i].expand) {
total_ratio += table->columns[i].expand_ratio;
}
}
// Assign actual widths.
for (int i = 0; i < col_count; i++) {
table->columns.write[i].width = table->columns[i].min_width;
if (table->columns[i].expand && total_ratio > 0 && remaining_width > 0) {
table->columns.write[i].width += table->columns[i].expand_ratio * remaining_width / total_ratio;
}
table->total_width += table->columns[i].width + hseparation;
}
// Resize to max_width if needed and distribute the remaining space.
bool table_need_fit = true;
while (table_need_fit) {
table_need_fit = false;
// Fit slim.
for (int i = 0; i < col_count; i++) {
if (!table->columns[i].expand) {
continue;
}
int dif = table->columns[i].width - table->columns[i].max_width;
if (dif > 0) {
table_need_fit = true;
table->columns.write[i].width = table->columns[i].max_width;
table->total_width -= dif;
total_ratio -= table->columns[i].expand_ratio;
}
}
// Grow.
remaining_width = available_width - table->total_width;
if (remaining_width > 0 && total_ratio > 0) {
for (int i = 0; i < col_count; i++) {
if (table->columns[i].expand) {
int dif = table->columns[i].max_width - table->columns[i].width;
if (dif > 0) {
int slice = table->columns[i].expand_ratio * remaining_width / total_ratio;
int incr = MIN(dif, slice);
table->columns.write[i].width += incr;
table->total_width += incr;
}
}
}
}
}
// Update line width and get total height.
idx = 0;
table->total_height = 0;
table->rows.clear();
Vector2 offset;
float row_height = 0.0;
for (Item *E : table->subitems) {
ERR_CONTINUE(E->type != ITEM_FRAME); // Children should all be frames.
ItemFrame *frame = static_cast<ItemFrame *>(E);
int column = idx % col_count;
offset.x += frame->padding.position.x;
float yofs = frame->padding.position.y;
for (int i = 0; i < frame->lines.size(); i++) {
frame->lines.write[i].text_buf->set_width(table->columns[column].width);
table->columns.write[column].width = MAX(table->columns.write[column].width, ceil(frame->lines[i].text_buf->get_size().x));
if (i > 0) {
frame->lines.write[i].offset.y = frame->lines[i - 1].offset.y + frame->lines[i - 1].text_buf->get_size().y + frame->lines[i - 1].text_buf->get_line_count() * get_theme_constant(SNAME("line_separation"));
} else {
frame->lines.write[i].offset.y = 0;
}
frame->lines.write[i].offset += offset;
float h = frame->lines[i].text_buf->get_size().y + (frame->lines[i].text_buf->get_line_count() - 1) * get_theme_constant(SNAME("line_separation"));
if (i > 0) {
h += get_theme_constant(SNAME("line_separation"));
}
if (frame->min_size_over.y > 0) {
h = MAX(h, frame->min_size_over.y);
}
if (frame->max_size_over.y > 0) {
h = MIN(h, frame->max_size_over.y);
}
yofs += h;
}
yofs += frame->padding.size.y;
offset.x += table->columns[column].width + hseparation + frame->padding.size.x;
row_height = MAX(yofs, row_height);
if (column == col_count - 1) {
offset.x = 0;
row_height += vseparation;
table->total_height += row_height;
offset.y += row_height;
table->rows.push_back(row_height);
row_height = 0;
}
idx++;
}
l.text_buf->resize_object((uint64_t)it, Size2(table->total_width, table->total_height), table->inline_align);
} break;
default:
break;
}
}
if (p_line > 0) {
l.offset.y = p_frame->lines[p_line - 1].offset.y + p_frame->lines[p_line - 1].text_buf->get_size().y + p_frame->lines[p_line - 1].text_buf->get_line_count() * get_theme_constant(SNAME("line_separation"));
} else {
l.offset.y = 0;
}
}
void RichTextLabel::_shape_line(ItemFrame *p_frame, int p_line, const Ref<Font> &p_base_font, int p_base_font_size, int p_width, int *r_char_offset) {
ERR_FAIL_COND(p_frame == nullptr);
ERR_FAIL_COND(p_line < 0 || p_line >= p_frame->lines.size());
Line &l = p_frame->lines.write[p_line];
uint16_t autowrap_flags = TextServer::BREAK_MANDATORY;
switch (autowrap_mode) {
case AUTOWRAP_WORD_SMART:
autowrap_flags = TextServer::BREAK_WORD_BOUND_ADAPTIVE | TextServer::BREAK_MANDATORY;
break;
case AUTOWRAP_WORD:
autowrap_flags = TextServer::BREAK_WORD_BOUND | TextServer::BREAK_MANDATORY;
break;
case AUTOWRAP_ARBITRARY:
autowrap_flags = TextServer::BREAK_GRAPHEME_BOUND | TextServer::BREAK_MANDATORY;
break;
case AUTOWRAP_OFF:
break;
}
// Clear cache.
l.text_buf->clear();
l.text_buf->set_flags(autowrap_flags | TextServer::JUSTIFICATION_KASHIDA | TextServer::JUSTIFICATION_WORD_BOUND | TextServer::JUSTIFICATION_TRIM_EDGE_SPACES);
l.char_offset = *r_char_offset;
l.char_count = 0;
// Add indent.
l.offset.x = _find_margin(l.from, p_base_font, p_base_font_size);
l.text_buf->set_width(p_width - l.offset.x);
l.text_buf->set_alignment(_find_alignment(l.from));
l.text_buf->set_direction(_find_direction(l.from));
if (tab_size > 0) { // Align inline tabs.
Vector<float> tabs;
tabs.push_back(tab_size * p_base_font->get_char_size(' ', 0, p_base_font_size).width);
l.text_buf->tab_align(tabs);
}
// Shape current paragraph.
String text;
Item *it_to = (p_line + 1 < p_frame->lines.size()) ? p_frame->lines[p_line + 1].from : nullptr;
int remaining_characters = visible_characters - l.char_offset;
for (Item *it = l.from; it && it != it_to; it = _get_next_item(it)) {
if (visible_chars_behavior == VC_CHARS_BEFORE_SHAPING && visible_characters >= 0 && remaining_characters <= 0) {
break;
}
switch (it->type) {
case ITEM_DROPCAP: {
// Add dropcap.
const ItemDropcap *dc = (ItemDropcap *)it;
if (dc != nullptr) {
l.text_buf->set_dropcap(dc->text, dc->font, dc->font_size, dc->dropcap_margins);
l.dc_color = dc->color;
l.dc_ol_size = dc->ol_size;
l.dc_ol_color = dc->ol_color;
} else {
l.text_buf->clear_dropcap();
}
} break;
case ITEM_NEWLINE: {
Ref<Font> font = _find_font(it);
if (font.is_null()) {
font = p_base_font;
}
int font_size = _find_font_size(it);
if (font_size == -1) {
font_size = p_base_font_size;
}
l.text_buf->add_string("\n", font, font_size, Dictionary(), "");
text += "\n";
l.char_count++;
remaining_characters--;
} break;
case ITEM_TEXT: {
ItemText *t = (ItemText *)it;
Ref<Font> font = _find_font(it);
if (font.is_null()) {
font = p_base_font;
}
int font_size = _find_font_size(it);
if (font_size == -1) {
font_size = p_base_font_size;
}
Dictionary font_ftr = _find_font_features(it);
String lang = _find_language(it);
String tx = t->text;
if (visible_chars_behavior == VC_CHARS_BEFORE_SHAPING && visible_characters >= 0 && remaining_characters >= 0) {
tx = tx.substr(0, remaining_characters);
}
remaining_characters -= tx.length();
l.text_buf->add_string(tx, font, font_size, font_ftr, lang, (uint64_t)it);
text += tx;
l.char_count += tx.length();
} break;
case ITEM_IMAGE: {
ItemImage *img = (ItemImage *)it;
l.text_buf->add_object((uint64_t)it, img->size, img->inline_align, 1);
text += String::chr(0xfffc);
l.char_count++;
remaining_characters--;
} break;
case ITEM_TABLE: {
ItemTable *table = static_cast<ItemTable *>(it);
int hseparation = get_theme_constant(SNAME("table_hseparation"));
int vseparation = get_theme_constant(SNAME("table_vseparation"));
int col_count = table->columns.size();
int t_char_count = 0;
// Set minimums to zero.
for (int i = 0; i < col_count; i++) {
table->columns.write[i].min_width = 0;
table->columns.write[i].max_width = 0;
table->columns.write[i].width = 0;
}
// Compute minimum width for each cell.
const int available_width = p_width - hseparation * (col_count - 1);
int idx = 0;
for (Item *E : table->subitems) {
ERR_CONTINUE(E->type != ITEM_FRAME); // Children should all be frames.
ItemFrame *frame = static_cast<ItemFrame *>(E);
int column = idx % col_count;
for (int i = 0; i < frame->lines.size(); i++) {
int char_offset = l.char_offset + l.char_count;
int w = _find_margin(frame->lines[i].from, p_base_font, p_base_font_size) + 1;
_shape_line(frame, i, p_base_font, p_base_font_size, w, &char_offset);
int cell_ch = (char_offset - (l.char_offset + l.char_count));
l.char_count += cell_ch;
t_char_count += cell_ch;
remaining_characters -= cell_ch;
table->columns.write[column].min_width = MAX(table->columns[column].min_width, ceil(frame->lines[i].text_buf->get_size().x));
table->columns.write[column].max_width = MAX(table->columns[column].max_width, ceil(frame->lines[i].text_buf->get_non_wrapped_size().x));
}
idx++;
}
// Compute available width and total ratio (for expanders).
int total_ratio = 0;
int remaining_width = available_width;
table->total_width = hseparation;
for (int i = 0; i < col_count; i++) {
remaining_width -= table->columns[i].min_width;
if (table->columns[i].max_width > table->columns[i].min_width) {
table->columns.write[i].expand = true;
}
if (table->columns[i].expand) {
total_ratio += table->columns[i].expand_ratio;
}
}
// Assign actual widths.
for (int i = 0; i < col_count; i++) {
table->columns.write[i].width = table->columns[i].min_width;
if (table->columns[i].expand && total_ratio > 0 && remaining_width > 0) {
table->columns.write[i].width += table->columns[i].expand_ratio * remaining_width / total_ratio;
}
table->total_width += table->columns[i].width + hseparation;
}
// Resize to max_width if needed and distribute the remaining space.
bool table_need_fit = true;
while (table_need_fit) {
table_need_fit = false;
// Fit slim.
for (int i = 0; i < col_count; i++) {
if (!table->columns[i].expand) {
continue;
}
int dif = table->columns[i].width - table->columns[i].max_width;
if (dif > 0) {
table_need_fit = true;
table->columns.write[i].width = table->columns[i].max_width;
table->total_width -= dif;
total_ratio -= table->columns[i].expand_ratio;
}
}
// Grow.
remaining_width = available_width - table->total_width;
if (remaining_width > 0 && total_ratio > 0) {
for (int i = 0; i < col_count; i++) {
if (table->columns[i].expand) {
int dif = table->columns[i].max_width - table->columns[i].width;
if (dif > 0) {
int slice = table->columns[i].expand_ratio * remaining_width / total_ratio;
int incr = MIN(dif, slice);
table->columns.write[i].width += incr;
table->total_width += incr;
}
}
}
}
}
// Update line width and get total height.
idx = 0;
table->total_height = 0;
table->rows.clear();
Vector2 offset;
float row_height = 0.0;
for (const List<Item *>::Element *E = table->subitems.front(); E; E = E->next()) {
ERR_CONTINUE(E->get()->type != ITEM_FRAME); // Children should all be frames.
ItemFrame *frame = static_cast<ItemFrame *>(E->get());
int column = idx % col_count;
offset.x += frame->padding.position.x;
float yofs = frame->padding.position.y;
for (int i = 0; i < frame->lines.size(); i++) {
frame->lines.write[i].text_buf->set_width(table->columns[column].width);
table->columns.write[column].width = MAX(table->columns.write[column].width, ceil(frame->lines[i].text_buf->get_size().x));
if (i > 0) {
frame->lines.write[i].offset.y = frame->lines[i - 1].offset.y + frame->lines[i - 1].text_buf->get_size().y + frame->lines[i - 1].text_buf->get_line_count() * get_theme_constant(SNAME("line_separation"));
} else {
frame->lines.write[i].offset.y = 0;
}
frame->lines.write[i].offset += offset;
float h = frame->lines[i].text_buf->get_size().y + (frame->lines[i].text_buf->get_line_count() - 1) * get_theme_constant(SNAME("line_separation"));
if (i > 0) {
h += get_theme_constant(SNAME("line_separation"));
}
if (frame->min_size_over.y > 0) {
h = MAX(h, frame->min_size_over.y);
}
if (frame->max_size_over.y > 0) {
h = MIN(h, frame->max_size_over.y);
}
yofs += h;
}
yofs += frame->padding.size.y;
offset.x += table->columns[column].width + hseparation + frame->padding.size.x;
row_height = MAX(yofs, row_height);
// Add row height after last column of the row or last cell of the table.
if (column == col_count - 1 || E->next() == nullptr) {
offset.x = 0;
row_height += vseparation;
table->total_height += row_height;
offset.y += row_height;
table->rows.push_back(row_height);
row_height = 0;
}
idx++;
}
l.text_buf->add_object((uint64_t)it, Size2(table->total_width, table->total_height), table->inline_align, t_char_count);
text += String::chr(0xfffc).repeat(t_char_count);
} break;
default:
break;
}
}
//Apply BiDi override.
l.text_buf->set_bidi_override(structured_text_parser(_find_stt(l.from), st_args, text));
*r_char_offset = l.char_offset + l.char_count;
if (p_line > 0) {
l.offset.y = p_frame->lines[p_line - 1].offset.y + p_frame->lines[p_line - 1].text_buf->get_size().y + p_frame->lines[p_line - 1].text_buf->get_line_count() * get_theme_constant(SNAME("line_separation"));
} else {
l.offset.y = 0;
}
}
int RichTextLabel::_draw_line(ItemFrame *p_frame, int p_line, const Vector2 &p_ofs, int p_width, const Color &p_base_color, int p_outline_size, const Color &p_outline_color, const Color &p_font_shadow_color, int p_shadow_outline_size, const Point2 &p_shadow_ofs, int &r_processed_glyphs) {
ERR_FAIL_COND_V(p_frame == nullptr, 0);
ERR_FAIL_COND_V(p_line < 0 || p_line >= p_frame->lines.size(), 0);
Vector2 off;
int line_spacing = get_theme_constant(SNAME("line_separation"));
Line &l = p_frame->lines.write[p_line];
Item *it_from = l.from;
Item *it_to = (p_line + 1 < p_frame->lines.size()) ? p_frame->lines[p_line + 1].from : nullptr;
Variant meta;
if (it_from == nullptr) {
return 0;
}
RID ci = get_canvas_item();
bool rtl = (l.text_buf->get_direction() == TextServer::DIRECTION_RTL);
bool lrtl = is_layout_rtl();
bool trim_chars = (visible_characters >= 0) && (visible_chars_behavior == VC_CHARS_AFTER_SHAPING);
bool trim_glyphs_ltr = (visible_characters >= 0) && ((visible_chars_behavior == VC_GLYPHS_LTR) || ((visible_chars_behavior == VC_GLYPHS_AUTO) && !lrtl));
bool trim_glyphs_rtl = (visible_characters >= 0) && ((visible_chars_behavior == VC_GLYPHS_RTL) || ((visible_chars_behavior == VC_GLYPHS_AUTO) && lrtl));
int total_glyphs = (trim_glyphs_ltr || trim_glyphs_rtl) ? get_total_glyph_count() : 0;
int visible_glyphs = total_glyphs * percent_visible;
Vector<int> list_index;
Vector<ItemList *> list_items;
_find_list(l.from, list_index, list_items);
String prefix;
for (int i = 0; i < list_index.size(); i++) {
if (rtl) {
prefix = prefix + ".";
} else {
prefix = "." + prefix;
}
String segment;
if (list_items[i]->list_type == LIST_DOTS) {
static const char32_t _prefix[2] = { 0x25CF, 0 };
prefix = _prefix;
break;
} else if (list_items[i]->list_type == LIST_NUMBERS) {
segment = TS->format_number(itos(list_index[i]), _find_language(l.from));
} else if (list_items[i]->list_type == LIST_LETTERS) {
segment = _letters(list_index[i], list_items[i]->capitalize);
} else if (list_items[i]->list_type == LIST_ROMAN) {
segment = _roman(list_index[i], list_items[i]->capitalize);
}
if (rtl) {
prefix = prefix + segment;
} else {
prefix = segment + prefix;
}
}
if (!prefix.is_empty()) {
Ref<Font> font = _find_font(l.from);
if (font.is_null()) {
font = get_theme_font(SNAME("normal_font"));
}
int font_size = _find_font_size(l.from);
if (font_size == -1) {
font_size = get_theme_font_size(SNAME("normal_font_size"));
}
if (rtl) {
float offx = 0.0f;
if (!lrtl && p_frame == main) { // Skip Scrollbar.
offx -= scroll_w;
}
font->draw_string(ci, p_ofs + Vector2(p_width - l.offset.x + offx, l.text_buf->get_line_ascent(0)), " " + prefix, HORIZONTAL_ALIGNMENT_LEFT, l.offset.x, font_size, _find_color(l.from, p_base_color));
} else {
float offx = 0.0f;
if (lrtl && p_frame == main) { // Skip Scrollbar.
offx += scroll_w;
}
font->draw_string(ci, p_ofs + Vector2(offx, l.text_buf->get_line_ascent(0)), prefix + " ", HORIZONTAL_ALIGNMENT_RIGHT, l.offset.x, font_size, _find_color(l.from, p_base_color));
}
}
// Draw dropcap.
int dc_lines = l.text_buf->get_dropcap_lines();
float h_off = l.text_buf->get_dropcap_size().x;
if (l.dc_ol_size > 0) {
l.text_buf->draw_dropcap_outline(ci, p_ofs + ((rtl) ? Vector2() : Vector2(l.offset.x, 0)), l.dc_ol_size, l.dc_ol_color);
}
l.text_buf->draw_dropcap(ci, p_ofs + ((rtl) ? Vector2() : Vector2(l.offset.x, 0)), l.dc_color);
int line_count = 0;
Size2 ctrl_size = get_size();
// Draw text.
for (int line = 0; line < l.text_buf->get_line_count(); line++) {
if (line > 0) {
off.y += line_spacing;
}
RID rid = l.text_buf->get_line_rid(line);
if (p_ofs.y + off.y >= ctrl_size.height) {
break;
}
if (p_ofs.y + off.y + TS->shaped_text_get_size(rid).y <= 0) {
off.y += TS->shaped_text_get_size(rid).y;
continue;
}
float width = l.text_buf->get_width();
float length = TS->shaped_text_get_width(rid);
// Draw line.
line_count++;
if (rtl) {
off.x = p_width - l.offset.x - width;
if (!lrtl && p_frame == main) { // Skip Scrollbar.
off.x -= scroll_w;
}
} else {
off.x = l.offset.x;
if (lrtl && p_frame == main) { // Skip Scrollbar.
off.x += scroll_w;
}
}
// Draw text.
switch (l.text_buf->get_alignment()) {
case HORIZONTAL_ALIGNMENT_FILL:
case HORIZONTAL_ALIGNMENT_LEFT: {
if (rtl) {
off.x += width - length;
}
} break;
case HORIZONTAL_ALIGNMENT_CENTER: {
off.x += Math::floor((width - length) / 2.0);
} break;
case HORIZONTAL_ALIGNMENT_RIGHT: {
if (!rtl) {
off.x += width - length;
}
} break;
}
if (line <= dc_lines) {
if (rtl) {
off.x -= h_off;
} else {
off.x += h_off;
}
}
//draw_rect(Rect2(p_ofs + off, TS->shaped_text_get_size(rid)), Color(1,0,0), false, 2); //DEBUG_RECTS
off.y += TS->shaped_text_get_ascent(rid) + l.text_buf->get_spacing_top();
// Draw inlined objects.
Array objects = TS->shaped_text_get_objects(rid);
for (int i = 0; i < objects.size(); i++) {
Item *it = (Item *)(uint64_t)objects[i];
if (it != nullptr) {
Rect2 rect = TS->shaped_text_get_object_rect(rid, objects[i]);
//draw_rect(rect, Color(1,0,0), false, 2); //DEBUG_RECTS
switch (it->type) {
case ITEM_IMAGE: {
ItemImage *img = static_cast<ItemImage *>(it);
img->image->draw_rect(ci, Rect2(p_ofs + rect.position + off, rect.size), false, img->color);
} break;
case ITEM_TABLE: {
ItemTable *table = static_cast<ItemTable *>(it);
Color odd_row_bg = get_theme_color(SNAME("table_odd_row_bg"));
Color even_row_bg = get_theme_color(SNAME("table_even_row_bg"));
Color border = get_theme_color(SNAME("table_border"));
int hseparation = get_theme_constant(SNAME("table_hseparation"));
int col_count = table->columns.size();
int row_count = table->rows.size();
int idx = 0;
for (Item *E : table->subitems) {
ItemFrame *frame = static_cast<ItemFrame *>(E);
int col = idx % col_count;
int row = idx / col_count;
if (frame->lines.size() != 0 && row < row_count) {
Vector2 coff = frame->lines[0].offset;
if (rtl) {
coff.x = rect.size.width - table->columns[col].width - coff.x;
}
if (row % 2 == 0) {
draw_rect(Rect2(p_ofs + rect.position + off + coff - frame->padding.position, Size2(table->columns[col].width + hseparation + frame->padding.position.x + frame->padding.size.x, table->rows[row])), (frame->odd_row_bg != Color(0, 0, 0, 0) ? frame->odd_row_bg : odd_row_bg), true);
} else {
draw_rect(Rect2(p_ofs + rect.position + off + coff - frame->padding.position, Size2(table->columns[col].width + hseparation + frame->padding.position.x + frame->padding.size.x, table->rows[row])), (frame->even_row_bg != Color(0, 0, 0, 0) ? frame->even_row_bg : even_row_bg), true);
}
draw_rect(Rect2(p_ofs + rect.position + off + coff - frame->padding.position, Size2(table->columns[col].width + hseparation + frame->padding.position.x + frame->padding.size.x, table->rows[row])), (frame->border != Color(0, 0, 0, 0) ? frame->border : border), false);
}
for (int j = 0; j < frame->lines.size(); j++) {
_draw_line(frame, j, p_ofs + rect.position + off + Vector2(0, frame->lines[j].offset.y), rect.size.x, p_base_color, p_outline_size, p_outline_color, p_font_shadow_color, p_shadow_outline_size, p_shadow_ofs, r_processed_glyphs);
}
idx++;
}
} break;
default:
break;
}
}
}
const Glyph *glyphs = TS->shaped_text_get_glyphs(rid);
int gl_size = TS->shaped_text_get_glyph_count(rid);
Vector2 gloff = off;
// Draw oulines and shadow.
int processed_glyphs_ol = r_processed_glyphs;
for (int i = 0; i < gl_size; i++) {
Item *it = _get_item_at_pos(it_from, it_to, glyphs[i].start);
int size = _find_outline_size(it, p_outline_size);
Color font_color = _find_outline_color(it, p_outline_color);
Color font_shadow_color = p_font_shadow_color;
if ((size <= 0 || font_color.a == 0) && (font_shadow_color.a == 0)) {
gloff.x += glyphs[i].advance;
continue;
}
// Get FX.
ItemFade *fade = nullptr;
Item *fade_item = it;
while (fade_item) {
if (fade_item->type == ITEM_FADE) {
fade = static_cast<ItemFade *>(fade_item);
break;
}
fade_item = fade_item->parent;
}
Vector<ItemFX *> fx_stack;
_fetch_item_fx_stack(it, fx_stack);
bool custom_fx_ok = true;
Point2 fx_offset = Vector2(glyphs[i].x_off, glyphs[i].y_off);
RID frid = glyphs[i].font_rid;
uint32_t gl = glyphs[i].index;
uint16_t gl_fl = glyphs[i].flags;
uint8_t gl_cn = glyphs[i].count;
bool cprev = false;
if (gl_cn == 0) { // Parts of the same cluster, always connected.
cprev = true;
}
if (gl_fl & TextServer::GRAPHEME_IS_RTL) { // Check if previous grapheme cluster is connected.
if (i > 0 && (glyphs[i - 1].flags & TextServer::GRAPHEME_IS_CONNECTED)) {
cprev = true;
}
} else {
if (glyphs[i].flags & TextServer::GRAPHEME_IS_CONNECTED) {
cprev = true;
}
}
//Apply fx.
float faded_visibility = 1.0f;
if (fade) {
if (glyphs[i].start >= fade->starting_index) {
faded_visibility -= (float)(glyphs[i].start - fade->starting_index) / (float)fade->length;
faded_visibility = faded_visibility < 0.0f ? 0.0f : faded_visibility;
}
font_color.a = faded_visibility;
font_shadow_color.a = faded_visibility;
}
bool visible = (font_color.a != 0) || (font_shadow_color.a != 0);
for (int j = 0; j < fx_stack.size(); j++) {
ItemFX *item_fx = fx_stack[j];
if (item_fx->type == ITEM_CUSTOMFX && custom_fx_ok) {
ItemCustomFX *item_custom = static_cast<ItemCustomFX *>(item_fx);
Ref<CharFXTransform> charfx = item_custom->char_fx_transform;
Ref<RichTextEffect> custom_effect = item_custom->custom_effect;
if (!custom_effect.is_null()) {
charfx->elapsed_time = item_custom->elapsed_time;
charfx->range = Vector2i(l.char_offset + glyphs[i].start, l.char_offset + glyphs[i].end);
charfx->visibility = visible;
charfx->outline = true;
charfx->font = frid;
charfx->glyph_index = gl;
charfx->glyph_flags = gl_fl;
charfx->glyph_count = gl_cn;
charfx->offset = fx_offset;
charfx->color = font_color;
bool effect_status = custom_effect->_process_effect_impl(charfx);
custom_fx_ok = effect_status;
fx_offset += charfx->offset;
font_color = charfx->color;
frid = charfx->font;
gl = charfx->glyph_index;
visible &= charfx->visibility;
}
} else if (item_fx->type == ITEM_SHAKE) {
ItemShake *item_shake = static_cast<ItemShake *>(item_fx);
if (!cprev) {
uint64_t char_current_rand = item_shake->offset_random(glyphs[i].start);
uint64_t char_previous_rand = item_shake->offset_previous_random(glyphs[i].start);
uint64_t max_rand = 2147483647;
double current_offset = Math::range_lerp(char_current_rand % max_rand, 0, max_rand, 0.0f, 2.f * (float)Math_PI);
double previous_offset = Math::range_lerp(char_previous_rand % max_rand, 0, max_rand, 0.0f, 2.f * (float)Math_PI);
double n_time = (double)(item_shake->elapsed_time / (0.5f / item_shake->rate));
n_time = (n_time > 1.0) ? 1.0 : n_time;
item_shake->prev_off = Point2(Math::lerp(Math::sin(previous_offset), Math::sin(current_offset), n_time), Math::lerp(Math::cos(previous_offset), Math::cos(current_offset), n_time)) * (float)item_shake->strength / 10.0f;
}
fx_offset += item_shake->prev_off;
} else if (item_fx->type == ITEM_WAVE) {
ItemWave *item_wave = static_cast<ItemWave *>(item_fx);
if (!cprev) {
double value = Math::sin(item_wave->frequency * item_wave->elapsed_time + ((p_ofs.x + gloff.x) / 50)) * (item_wave->amplitude / 10.0f);
item_wave->prev_off = Point2(0, 1) * value;
}
fx_offset += item_wave->prev_off;
} else if (item_fx->type == ITEM_TORNADO) {
ItemTornado *item_tornado = static_cast<ItemTornado *>(item_fx);
if (!cprev) {
double torn_x = Math::sin(item_tornado->frequency * item_tornado->elapsed_time + ((p_ofs.x + gloff.x) / 50)) * (item_tornado->radius);
double torn_y = Math::cos(item_tornado->frequency * item_tornado->elapsed_time + ((p_ofs.x + gloff.x) / 50)) * (item_tornado->radius);
item_tornado->prev_off = Point2(torn_x, torn_y);
}
fx_offset += item_tornado->prev_off;
} else if (item_fx->type == ITEM_RAINBOW) {
ItemRainbow *item_rainbow = static_cast<ItemRainbow *>(item_fx);
font_color = font_color.from_hsv(item_rainbow->frequency * (item_rainbow->elapsed_time + ((p_ofs.x + gloff.x) / 50)), item_rainbow->saturation, item_rainbow->value, font_color.a);
}
}
// Draw glyph outlines.
for (int j = 0; j < glyphs[i].repeat; j++) {
if (visible) {
bool skip = (trim_chars && l.char_offset + glyphs[i].end > visible_characters) || (trim_glyphs_ltr && (processed_glyphs_ol >= visible_glyphs)) || (trim_glyphs_rtl && (processed_glyphs_ol < total_glyphs - visible_glyphs));
if (!skip && frid != RID()) {
if (font_shadow_color.a > 0) {
TS->font_draw_glyph(frid, ci, glyphs[i].font_size, p_ofs + fx_offset + gloff + p_shadow_ofs, gl, font_shadow_color);
}
if (font_shadow_color.a > 0 && p_shadow_outline_size > 0) {
TS->font_draw_glyph_outline(frid, ci, glyphs[i].font_size, p_shadow_outline_size, p_ofs + fx_offset + gloff + p_shadow_ofs, gl, font_shadow_color);
}
if (font_color.a != 0.0 && size > 0) {
TS->font_draw_glyph_outline(frid, ci, glyphs[i].font_size, size, p_ofs + fx_offset + gloff, gl, font_color);
}
}
processed_glyphs_ol++;
}
gloff.x += glyphs[i].advance;
}
}
Vector2 fbg_line_off = off + p_ofs;
// Draw background color box
Vector2i chr_range = TS->shaped_text_get_range(rid);
_draw_fbg_boxes(ci, rid, fbg_line_off, it_from, it_to, chr_range.x, chr_range.y, 0);
// Draw main text.
Color selection_fg = get_theme_color(SNAME("font_selected_color"));
Color selection_bg = get_theme_color(SNAME("selection_color"));
int sel_start = -1;
int sel_end = -1;
if (selection.active && (selection.from_frame->lines[selection.from_line].char_offset + selection.from_char) <= (l.char_offset + TS->shaped_text_get_range(rid).y) && (selection.to_frame->lines[selection.to_line].char_offset + selection.to_char) >= (l.char_offset + TS->shaped_text_get_range(rid).x)) {
sel_start = MAX(TS->shaped_text_get_range(rid).x, (selection.from_frame->lines[selection.from_line].char_offset + selection.from_char) - l.char_offset);
sel_end = MIN(TS->shaped_text_get_range(rid).y, (selection.to_frame->lines[selection.to_line].char_offset + selection.to_char) - l.char_offset);
Vector<Vector2> sel = TS->shaped_text_get_selection(rid, sel_start, sel_end);
for (int i = 0; i < sel.size(); i++) {
Rect2 rect = Rect2(sel[i].x + p_ofs.x + off.x, p_ofs.y + off.y - TS->shaped_text_get_ascent(rid), sel[i].y - sel[i].x, TS->shaped_text_get_size(rid).y);
RenderingServer::get_singleton()->canvas_item_add_rect(ci, rect, selection_bg);
}
}
for (int i = 0; i < gl_size; i++) {
bool selected = selection.active && (sel_start != -1) && (glyphs[i].start >= sel_start) && (glyphs[i].end <= sel_end);
Item *it = _get_item_at_pos(it_from, it_to, glyphs[i].start);
Color font_color = _find_color(it, p_base_color);
if (_find_underline(it) || (_find_meta(it, &meta) && underline_meta)) {
Color uc = font_color;
uc.a *= 0.5;
float y_off = TS->shaped_text_get_underline_position(rid);
float underline_width = TS->shaped_text_get_underline_thickness(rid) * get_theme_default_base_scale();
draw_line(p_ofs + Vector2(off.x, off.y + y_off), p_ofs + Vector2(off.x + glyphs[i].advance * glyphs[i].repeat, off.y + y_off), uc, underline_width);
}
if (_find_strikethrough(it)) {
Color uc = font_color;
uc.a *= 0.5;
float y_off = -TS->shaped_text_get_ascent(rid) + TS->shaped_text_get_size(rid).y / 2;
float underline_width = TS->shaped_text_get_underline_thickness(rid) * get_theme_default_base_scale();
draw_line(p_ofs + Vector2(off.x, off.y + y_off), p_ofs + Vector2(off.x + glyphs[i].advance * glyphs[i].repeat, off.y + y_off), uc, underline_width);
}
// Get FX.
ItemFade *fade = nullptr;
Item *fade_item = it;
while (fade_item) {
if (fade_item->type == ITEM_FADE) {
fade = static_cast<ItemFade *>(fade_item);
break;
}
fade_item = fade_item->parent;
}
Vector<ItemFX *> fx_stack;
_fetch_item_fx_stack(it, fx_stack);
bool custom_fx_ok = true;
Point2 fx_offset = Vector2(glyphs[i].x_off, glyphs[i].y_off);
RID frid = glyphs[i].font_rid;
uint32_t gl = glyphs[i].index;
uint16_t gl_fl = glyphs[i].flags;
uint8_t gl_cn = glyphs[i].count;
bool cprev = false;
if (gl_cn == 0) { // Parts of the same grapheme cluster, always connected.
cprev = true;
}
if (gl_fl & TextServer::GRAPHEME_IS_RTL) { // Check if previous grapheme cluster is connected.
if (i > 0 && (glyphs[i - 1].flags & TextServer::GRAPHEME_IS_CONNECTED)) {
cprev = true;
}
} else {
if (glyphs[i].flags & TextServer::GRAPHEME_IS_CONNECTED) {
cprev = true;
}
}
//Apply fx.
float faded_visibility = 1.0f;
if (fade) {
if (glyphs[i].start >= fade->starting_index) {
faded_visibility -= (float)(glyphs[i].start - fade->starting_index) / (float)fade->length;
faded_visibility = faded_visibility < 0.0f ? 0.0f : faded_visibility;
}
font_color.a = faded_visibility;
}
bool visible = (font_color.a != 0);
for (int j = 0; j < fx_stack.size(); j++) {
ItemFX *item_fx = fx_stack[j];
if (item_fx->type == ITEM_CUSTOMFX && custom_fx_ok) {
ItemCustomFX *item_custom = static_cast<ItemCustomFX *>(item_fx);
Ref<CharFXTransform> charfx = item_custom->char_fx_transform;
Ref<RichTextEffect> custom_effect = item_custom->custom_effect;
if (!custom_effect.is_null()) {
charfx->elapsed_time = item_custom->elapsed_time;
charfx->range = Vector2i(l.char_offset + glyphs[i].start, l.char_offset + glyphs[i].end);
charfx->visibility = visible;
charfx->outline = false;
charfx->font = frid;
charfx->glyph_index = gl;
charfx->glyph_flags = gl_fl;
charfx->glyph_count = gl_cn;
charfx->offset = fx_offset;
charfx->color = font_color;
bool effect_status = custom_effect->_process_effect_impl(charfx);
custom_fx_ok = effect_status;
fx_offset += charfx->offset;
font_color = charfx->color;
frid = charfx->font;
gl = charfx->glyph_index;
visible &= charfx->visibility;
}
} else if (item_fx->type == ITEM_SHAKE) {
ItemShake *item_shake = static_cast<ItemShake *>(item_fx);
if (!cprev) {
uint64_t char_current_rand = item_shake->offset_random(glyphs[i].start);
uint64_t char_previous_rand = item_shake->offset_previous_random(glyphs[i].start);
uint64_t max_rand = 2147483647;
double current_offset = Math::range_lerp(char_current_rand % max_rand, 0, max_rand, 0.0f, 2.f * (float)Math_PI);
double previous_offset = Math::range_lerp(char_previous_rand % max_rand, 0, max_rand, 0.0f, 2.f * (float)Math_PI);
double n_time = (double)(item_shake->elapsed_time / (0.5f / item_shake->rate));
n_time = (n_time > 1.0) ? 1.0 : n_time;
item_shake->prev_off = Point2(Math::lerp(Math::sin(previous_offset), Math::sin(current_offset), n_time), Math::lerp(Math::cos(previous_offset), Math::cos(current_offset), n_time)) * (float)item_shake->strength / 10.0f;
}
fx_offset += item_shake->prev_off;
} else if (item_fx->type == ITEM_WAVE) {
ItemWave *item_wave = static_cast<ItemWave *>(item_fx);
if (!cprev) {
double value = Math::sin(item_wave->frequency * item_wave->elapsed_time + ((p_ofs.x + off.x) / 50)) * (item_wave->amplitude / 10.0f);
item_wave->prev_off = Point2(0, 1) * value;
}
fx_offset += item_wave->prev_off;
} else if (item_fx->type == ITEM_TORNADO) {
ItemTornado *item_tornado = static_cast<ItemTornado *>(item_fx);
if (!cprev) {
double torn_x = Math::sin(item_tornado->frequency * item_tornado->elapsed_time + ((p_ofs.x + off.x) / 50)) * (item_tornado->radius);
double torn_y = Math::cos(item_tornado->frequency * item_tornado->elapsed_time + ((p_ofs.x + off.x) / 50)) * (item_tornado->radius);
item_tornado->prev_off = Point2(torn_x, torn_y);
}
fx_offset += item_tornado->prev_off;
} else if (item_fx->type == ITEM_RAINBOW) {
ItemRainbow *item_rainbow = static_cast<ItemRainbow *>(item_fx);
font_color = font_color.from_hsv(item_rainbow->frequency * (item_rainbow->elapsed_time + ((p_ofs.x + off.x) / 50)), item_rainbow->saturation, item_rainbow->value, font_color.a);
}
}
if (selected) {
font_color = override_selected_font_color ? selection_fg : font_color;
}
// Draw glyphs.
for (int j = 0; j < glyphs[i].repeat; j++) {
if (visible) {
bool skip = (trim_chars && l.char_offset + glyphs[i].end > visible_characters) || (trim_glyphs_ltr && (r_processed_glyphs >= visible_glyphs)) || (trim_glyphs_rtl && (r_processed_glyphs < total_glyphs - visible_glyphs));
if (!skip) {
if (frid != RID()) {
TS->font_draw_glyph(frid, ci, glyphs[i].font_size, p_ofs + fx_offset + off, gl, selected ? selection_fg : font_color);
} else if ((glyphs[i].flags & TextServer::GRAPHEME_IS_VIRTUAL) != TextServer::GRAPHEME_IS_VIRTUAL) {
TS->draw_hex_code_box(ci, glyphs[i].font_size, p_ofs + fx_offset + off, gl, selected ? selection_fg : font_color);
}
}
r_processed_glyphs++;
}
off.x += glyphs[i].advance;
}
}
// Draw foreground color box
_draw_fbg_boxes(ci, rid, fbg_line_off, it_from, it_to, chr_range.x, chr_range.y, 1);
off.y += TS->shaped_text_get_descent(rid) + l.text_buf->get_spacing_bottom();
}
return line_count;
}
void RichTextLabel::_find_click(ItemFrame *p_frame, const Point2i &p_click, ItemFrame **r_click_frame, int *r_click_line, Item **r_click_item, int *r_click_char, bool *r_outside) {
if (r_click_item) {
*r_click_item = nullptr;
}
if (r_click_char != nullptr) {
*r_click_char = 0;
}
if (r_outside != nullptr) {
*r_outside = true;
}
Size2 size = get_size();
Rect2 text_rect = _get_text_rect();
int vofs = vscroll->get_value();
// Search for the first line.
int from_line = 0;
//TODO, change to binary search ?
while (from_line < main->lines.size()) {
if (main->lines[from_line].offset.y + main->lines[from_line].text_buf->get_size().y + main->lines[from_line].text_buf->get_line_count() * get_theme_constant(SNAME("line_separation")) >= vofs) {
break;
}
from_line++;
}
if (from_line >= main->lines.size()) {
return;
}
Point2 ofs = text_rect.get_position() + Vector2(0, main->lines[from_line].offset.y - vofs);
while (ofs.y < size.height && from_line < main->lines.size()) {
_find_click_in_line(p_frame, from_line, ofs, text_rect.size.x, p_click, r_click_frame, r_click_line, r_click_item, r_click_char);
ofs.y += main->lines[from_line].text_buf->get_size().y + main->lines[from_line].text_buf->get_line_count() * get_theme_constant(SNAME("line_separation"));
if (((r_click_item != nullptr) && ((*r_click_item) != nullptr)) || ((r_click_frame != nullptr) && ((*r_click_frame) != nullptr))) {
if (r_outside != nullptr) {
*r_outside = false;
}
return;
}
from_line++;
}
}
float RichTextLabel::_find_click_in_line(ItemFrame *p_frame, int p_line, const Vector2 &p_ofs, int p_width, const Point2i &p_click, ItemFrame **r_click_frame, int *r_click_line, Item **r_click_item, int *r_click_char) {
Vector2 off;
int char_pos = -1;
Line &l = p_frame->lines.write[p_line];
bool rtl = (l.text_buf->get_direction() == TextServer::DIRECTION_RTL);
bool lrtl = is_layout_rtl();
bool table_hit = false;
for (int line = 0; line < l.text_buf->get_line_count(); line++) {
RID rid = l.text_buf->get_line_rid(line);
float width = l.text_buf->get_width();
float length = TS->shaped_text_get_width(rid);
if (rtl) {
off.x = p_width - l.offset.x - width;
if (!lrtl && p_frame == main) { // Skip Scrollbar.
off.x -= scroll_w;
}
} else {
off.x = l.offset.x;
if (lrtl && p_frame == main) { // Skip Scrollbar.
off.x += scroll_w;
}
}
switch (l.text_buf->get_alignment()) {
case HORIZONTAL_ALIGNMENT_FILL:
case HORIZONTAL_ALIGNMENT_LEFT: {
if (rtl) {
off.x += width - length;
}
} break;
case HORIZONTAL_ALIGNMENT_CENTER: {
off.x += Math::floor((width - length) / 2.0);
} break;
case HORIZONTAL_ALIGNMENT_RIGHT: {
if (!rtl) {
off.x += width - length;
}
} break;
}
off.y += TS->shaped_text_get_ascent(rid) + l.text_buf->get_spacing_top();
Array objects = TS->shaped_text_get_objects(rid);
for (int i = 0; i < objects.size(); i++) {
Item *it = (Item *)(uint64_t)objects[i];
if (it != nullptr) {
Rect2 rect = TS->shaped_text_get_object_rect(rid, objects[i]);
if (rect.has_point(p_click - p_ofs - off)) {
switch (it->type) {
case ITEM_TABLE: {
int hseparation = get_theme_constant(SNAME("table_hseparation"));
int vseparation = get_theme_constant(SNAME("table_vseparation"));
ItemTable *table = static_cast<ItemTable *>(it);
table_hit = true;
int idx = 0;
int col_count = table->columns.size();
int row_count = table->rows.size();
for (Item *E : table->subitems) {
ItemFrame *frame = static_cast<ItemFrame *>(E);
int col = idx % col_count;
int row = idx / col_count;
if (frame->lines.size() != 0 && row < row_count) {
Vector2 coff = frame->lines[0].offset;
if (rtl) {
coff.x = rect.size.width - table->columns[col].width - coff.x;
}
Rect2 crect = Rect2(p_ofs + off + rect.position + coff - frame->padding.position, Size2(table->columns[col].width + hseparation, table->rows[row] + vseparation) + frame->padding.position + frame->padding.size);
if (col == col_count - 1) {
if (rtl) {
crect.size.x = crect.position.x + crect.size.x;
crect.position.x = 0;
} else {
crect.size.x = get_size().x;
}
}
if (crect.has_point(p_click)) {
for (int j = 0; j < frame->lines.size(); j++) {
_find_click_in_line(frame, j, p_ofs + off + rect.position + Vector2(0, frame->lines[j].offset.y), rect.size.x, p_click, r_click_frame, r_click_line, r_click_item, r_click_char);
if (((r_click_item != nullptr) && ((*r_click_item) != nullptr)) || ((r_click_frame != nullptr) && ((*r_click_frame) != nullptr))) {
return off.y;
}
}
}
}
idx++;
}
} break;
default:
break;
}
}
}
}
Rect2 rect = Rect2(p_ofs + off - Vector2(0, TS->shaped_text_get_ascent(rid)), Size2(get_size().x, TS->shaped_text_get_size(rid).y));
if (rect.has_point(p_click) && !table_hit) {
char_pos = TS->shaped_text_hit_test_position(rid, p_click.x - rect.position.x);
}
off.y += TS->shaped_text_get_descent(rid) + l.text_buf->get_spacing_bottom() + get_theme_constant(SNAME("line_separation"));
}
if (char_pos >= 0) {
// Find item.
if (r_click_item != nullptr) {
Item *it = p_frame->lines[p_line].from;
Item *it_to = (p_line + 1 < p_frame->lines.size()) ? p_frame->lines[p_line + 1].from : nullptr;
if (char_pos == p_frame->lines[p_line].char_count) {
// Selection after the end of line, select last item.
if (it_to != nullptr) {
*r_click_item = _get_prev_item(it_to);
} else {
for (Item *i = it; i && i != it_to; i = _get_next_item(i)) {
*r_click_item = i;
}
}
} else {
// Selection in the line.
*r_click_item = _get_item_at_pos(it, it_to, char_pos);
}
}
if (r_click_frame != nullptr) {
*r_click_frame = p_frame;
}
if (r_click_line != nullptr) {
*r_click_line = p_line;
}
if (r_click_char != nullptr) {
*r_click_char = char_pos;
}
}
return off.y;
}
void RichTextLabel::_scroll_changed(double) {
if (updating_scroll) {
return;
}
if (scroll_follow && vscroll->get_value() >= (vscroll->get_max() - vscroll->get_page())) {
scroll_following = true;
} else {
scroll_following = false;
}
scroll_updated = true;
update();
}
void RichTextLabel::_update_scroll() {
int total_height = get_content_height();
bool exceeds = total_height > get_size().height && scroll_active;
if (exceeds != scroll_visible) {
if (exceeds) {
scroll_visible = true;
scroll_w = vscroll->get_combined_minimum_size().width;
vscroll->show();
vscroll->set_anchor_and_offset(SIDE_LEFT, ANCHOR_END, -scroll_w);
} else {
scroll_visible = false;
scroll_w = 0;
vscroll->hide();
}
main->first_resized_line = 0; //invalidate ALL
_validate_line_caches(main);
}
}
void RichTextLabel::_update_fx(RichTextLabel::ItemFrame *p_frame, double p_delta_time) {
Item *it = p_frame;
while (it) {
ItemFX *ifx = nullptr;
if (it->type == ITEM_CUSTOMFX || it->type == ITEM_SHAKE || it->type == ITEM_WAVE || it->type == ITEM_TORNADO || it->type == ITEM_RAINBOW) {
ifx = static_cast<ItemFX *>(it);
}
if (!ifx) {
it = _get_next_item(it, true);
continue;
}
ifx->elapsed_time += p_delta_time;
ItemShake *shake = nullptr;
if (it->type == ITEM_SHAKE) {
shake = static_cast<ItemShake *>(it);
}
if (shake) {
bool cycle = (shake->elapsed_time > (1.0f / shake->rate));
if (cycle) {
shake->elapsed_time -= (1.0f / shake->rate);
shake->reroll_random();
}
}
it = _get_next_item(it, true);
}
}
void RichTextLabel::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_MOUSE_EXIT: {
if (meta_hovering) {
meta_hovering = nullptr;
emit_signal(SNAME("meta_hover_ended"), current_meta);
current_meta = false;
update();
}
} break;
case NOTIFICATION_RESIZED: {
main->first_resized_line = 0; //invalidate ALL
update();
} break;
case NOTIFICATION_THEME_CHANGED: {
main->first_invalid_font_line = 0; //invalidate ALL
update();
} break;
case NOTIFICATION_ENTER_TREE: {
if (!text.is_empty()) {
set_text(text);
}
main->first_invalid_line = 0; //invalidate ALL
update();
} break;
case NOTIFICATION_LAYOUT_DIRECTION_CHANGED:
case NOTIFICATION_TRANSLATION_CHANGED: {
main->first_invalid_line = 0; //invalidate ALL
update();
} break;
case NOTIFICATION_DRAW: {
_validate_line_caches(main);
_update_scroll();
RID ci = get_canvas_item();
Size2 size = get_size();
Rect2 text_rect = _get_text_rect();
draw_style_box(get_theme_stylebox(SNAME("normal")), Rect2(Point2(), size));
if (has_focus()) {
RenderingServer::get_singleton()->canvas_item_add_clip_ignore(ci, true);
draw_style_box(get_theme_stylebox(SNAME("focus")), Rect2(Point2(), size));
RenderingServer::get_singleton()->canvas_item_add_clip_ignore(ci, false);
}
float vofs = vscroll->get_value();
// Search for the first line.
int from_line = 0;
//TODO, change to binary search ?
while (from_line < main->lines.size()) {
if (main->lines[from_line].offset.y + main->lines[from_line].text_buf->get_size().y + main->lines[from_line].text_buf->get_line_count() * get_theme_constant(SNAME("line_separation")) >= vofs) {
break;
}
from_line++;
}
if (from_line >= main->lines.size()) {
break; //nothing to draw
}
Ref<Font> base_font = get_theme_font(SNAME("normal_font"));
Color base_color = get_theme_color(SNAME("default_color"));
Color outline_color = get_theme_color(SNAME("font_outline_color"));
int outline_size = get_theme_constant(SNAME("outline_size"));
Color font_shadow_color = get_theme_color(SNAME("font_shadow_color"));
int shadow_outline_size = get_theme_constant(SNAME("shadow_outline_size"));
Point2 shadow_ofs(get_theme_constant(SNAME("shadow_offset_x")), get_theme_constant(SNAME("shadow_offset_y")));
visible_paragraph_count = 0;
visible_line_count = 0;
// New cache draw.
Point2 ofs = text_rect.get_position() + Vector2(0, main->lines[from_line].offset.y - vofs);
int processed_glyphs = 0;
while (ofs.y < size.height && from_line < main->lines.size()) {
visible_paragraph_count++;
visible_line_count += _draw_line(main, from_line, ofs, text_rect.size.x, base_color, outline_size, outline_color, font_shadow_color, shadow_outline_size, shadow_ofs, processed_glyphs);
ofs.y += main->lines[from_line].text_buf->get_size().y + main->lines[from_line].text_buf->get_line_count() * get_theme_constant(SNAME("line_separation"));
from_line++;
}
} break;
case NOTIFICATION_INTERNAL_PROCESS: {
if (is_visible_in_tree()) {
double dt = get_process_delta_time();
_update_fx(main, dt);
update();
}
} break;
case NOTIFICATION_FOCUS_EXIT: {
if (deselect_on_focus_loss_enabled) {
selection.active = false;
update();
}
} break;
case NOTIFICATION_DRAG_END: {
selection.drag_attempt = false;
} break;
}
}
Control::CursorShape RichTextLabel::get_cursor_shape(const Point2 &p_pos) const {
if (!underline_meta) {
return get_default_cursor_shape();
}
if (selection.click_item) {
return CURSOR_IBEAM;
}
if (main->first_invalid_line < main->lines.size()) {
return get_default_cursor_shape(); //invalid
}
if (main->first_invalid_font_line < main->lines.size()) {
return get_default_cursor_shape(); //invalid
}
if (main->first_resized_line < main->lines.size()) {
return get_default_cursor_shape(); //invalid
}
Item *item = nullptr;
bool outside = true;
((RichTextLabel *)(this))->_find_click(main, p_pos, nullptr, nullptr, &item, nullptr, &outside);
if (item && !outside && ((RichTextLabel *)(this))->_find_meta(item, nullptr)) {
return CURSOR_POINTING_HAND;
}
return get_default_cursor_shape();
}
void RichTextLabel::gui_input(const Ref<InputEvent> &p_event) {
ERR_FAIL_COND(p_event.is_null());
Ref<InputEventMouseButton> b = p_event;
if (b.is_valid()) {
if (main->first_invalid_line < main->lines.size()) {
return;
}
if (main->first_invalid_font_line < main->lines.size()) {
return;
}
if (main->first_resized_line < main->lines.size()) {
return;
}
if (b->get_button_index() == MouseButton::LEFT) {
if (b->is_pressed() && !b->is_double_click()) {
scroll_updated = false;
ItemFrame *c_frame = nullptr;
int c_line = 0;
Item *c_item = nullptr;
int c_index = 0;
bool outside;
selection.drag_attempt = false;
_find_click(main, b->get_position(), &c_frame, &c_line, &c_item, &c_index, &outside);
if (c_item != nullptr) {
if (selection.enabled) {
selection.click_frame = c_frame;
selection.click_item = c_item;
selection.click_line = c_line;
selection.click_char = c_index;
// Erase previous selection.
if (selection.active) {
if (_is_click_inside_selection()) {
selection.drag_attempt = true;
selection.click_item = nullptr;
} else {
selection.from_frame = nullptr;
selection.from_line = 0;
selection.from_item = nullptr;
selection.from_char = 0;
selection.to_frame = nullptr;
selection.to_line = 0;
selection.to_item = nullptr;
selection.to_char = 0;
selection.active = false;
update();
}
}
}
}
} else if (b->is_pressed() && b->is_double_click() && selection.enabled) {
//double_click: select word
ItemFrame *c_frame = nullptr;
int c_line = 0;
Item *c_item = nullptr;
int c_index = 0;
bool outside;
selection.drag_attempt = false;
_find_click(main, b->get_position(), &c_frame, &c_line, &c_item, &c_index, &outside);
if (c_frame) {
const Line &l = c_frame->lines[c_line];
PackedInt32Array words = TS->shaped_text_get_word_breaks(l.text_buf->get_rid());
for (int i = 0; i < words.size(); i = i + 2) {
if (c_index >= words[i] && c_index < words[i + 1]) {
selection.from_frame = c_frame;
selection.from_line = c_line;
selection.from_item = c_item;
selection.from_char = words[i];
selection.to_frame = c_frame;
selection.to_line = c_line;
selection.to_item = c_item;
selection.to_char = words[i + 1];
selection.active = true;
if (DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
DisplayServer::get_singleton()->clipboard_set_primary(get_selected_text());
}
update();
break;
}
}
}
} else if (!b->is_pressed()) {
if (selection.enabled && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
DisplayServer::get_singleton()->clipboard_set_primary(get_selected_text());
}
selection.click_item = nullptr;
if (selection.drag_attempt) {
selection.drag_attempt = false;
if (_is_click_inside_selection()) {
selection.from_frame = nullptr;
selection.from_line = 0;
selection.from_item = nullptr;
selection.from_char = 0;
selection.to_frame = nullptr;
selection.to_line = 0;
selection.to_item = nullptr;
selection.to_char = 0;
selection.active = false;
update();
}
}
if (!b->is_double_click() && !scroll_updated) {
Item *c_item = nullptr;
bool outside = true;
_find_click(main, b->get_position(), nullptr, nullptr, &c_item, nullptr, &outside);
if (c_item) {
Variant meta;
if (!outside && _find_meta(c_item, &meta)) {
//meta clicked
emit_signal(SNAME("meta_clicked"), meta);
}
}
}
}
}
if (b->get_button_index() == MouseButton::WHEEL_UP) {
if (scroll_active) {
vscroll->set_value(vscroll->get_value() - vscroll->get_page() * b->get_factor() * 0.5 / 8);
}
}
if (b->get_button_index() == MouseButton::WHEEL_DOWN) {
if (scroll_active) {
vscroll->set_value(vscroll->get_value() + vscroll->get_page() * b->get_factor() * 0.5 / 8);
}
}
}
Ref<InputEventPanGesture> pan_gesture = p_event;
if (pan_gesture.is_valid()) {
if (scroll_active) {
vscroll->set_value(vscroll->get_value() + vscroll->get_page() * pan_gesture->get_delta().y * 0.5 / 8);
}
return;
}
Ref<InputEventKey> k = p_event;
if (k.is_valid()) {
if (k->is_pressed()) {
bool handled = false;
if (k->is_action("ui_page_up") && vscroll->is_visible_in_tree()) {
vscroll->set_value(vscroll->get_value() - vscroll->get_page());
handled = true;
}
if (k->is_action("ui_page_down") && vscroll->is_visible_in_tree()) {
vscroll->set_value(vscroll->get_value() + vscroll->get_page());
handled = true;
}
if (k->is_action("ui_up") && vscroll->is_visible_in_tree()) {
vscroll->set_value(vscroll->get_value() - get_theme_font(SNAME("normal_font"))->get_height(get_theme_font_size(SNAME("normal_font_size"))));
handled = true;
}
if (k->is_action("ui_down") && vscroll->is_visible_in_tree()) {
vscroll->set_value(vscroll->get_value() + get_theme_font(SNAME("normal_font"))->get_height(get_theme_font_size(SNAME("normal_font_size"))));
handled = true;
}
if (k->is_action("ui_home") && vscroll->is_visible_in_tree()) {
vscroll->set_value(0);
handled = true;
}
if (k->is_action("ui_end") && vscroll->is_visible_in_tree()) {
vscroll->set_value(vscroll->get_max());
handled = true;
}
if (k->is_action("ui_copy")) {
selection_copy();
handled = true;
}
if (handled) {
accept_event();
}
}
}
Ref<InputEventMouseMotion> m = p_event;
if (m.is_valid()) {
if (main->first_invalid_line < main->lines.size()) {
return;
}
if (main->first_invalid_font_line < main->lines.size()) {
return;
}
if (main->first_resized_line < main->lines.size()) {
return;
}
ItemFrame *c_frame = nullptr;
int c_line = 0;
Item *c_item = nullptr;
int c_index = 0;
bool outside;
_find_click(main, m->get_position(), &c_frame, &c_line, &c_item, &c_index, &outside);
if (selection.click_item && c_item) {
selection.from_frame = selection.click_frame;
selection.from_line = selection.click_line;
selection.from_item = selection.click_item;
selection.from_char = selection.click_char;
selection.to_frame = c_frame;
selection.to_line = c_line;
selection.to_item = c_item;
selection.to_char = c_index;
bool swap = false;
if (selection.from_item->index > selection.to_item->index) {
swap = true;
} else if (selection.from_item->index == selection.to_item->index) {
if (selection.from_char > selection.to_char) {
swap = true;
} else if (selection.from_char == selection.to_char) {
selection.active = false;
update();
return;
}
}
if (swap) {
SWAP(selection.from_frame, selection.to_frame);
SWAP(selection.from_line, selection.to_line);
SWAP(selection.from_item, selection.to_item);
SWAP(selection.from_char, selection.to_char);
}
selection.active = true;
update();
}
Variant meta;
ItemMeta *item_meta;
if (c_item && !outside && _find_meta(c_item, &meta, &item_meta)) {
if (meta_hovering != item_meta) {
if (meta_hovering) {
emit_signal(SNAME("meta_hover_ended"), current_meta);
}
meta_hovering = item_meta;
current_meta = meta;
emit_signal(SNAME("meta_hover_started"), meta);
}
} else if (meta_hovering) {
meta_hovering = nullptr;
emit_signal(SNAME("meta_hover_ended"), current_meta);
current_meta = false;
}
}
}
void RichTextLabel::_find_frame(Item *p_item, ItemFrame **r_frame, int *r_line) {
if (r_frame != nullptr) {
*r_frame = nullptr;
}
if (r_line != nullptr) {
*r_line = 0;
}
Item *item = p_item;
while (item) {
if (item->parent != nullptr && item->parent->type == ITEM_FRAME) {
if (r_frame != nullptr) {
*r_frame = (ItemFrame *)item->parent;
}
if (r_line != nullptr) {
*r_line = item->line;
}
return;
}
item = item->parent;
}
}
Ref<Font> RichTextLabel::_find_font(Item *p_item) {
Item *fontitem = p_item;
while (fontitem) {
if (fontitem->type == ITEM_FONT) {
ItemFont *fi = static_cast<ItemFont *>(fontitem);
return fi->font;
}
fontitem = fontitem->parent;
}
return Ref<Font>();
}
int RichTextLabel::_find_font_size(Item *p_item) {
Item *sizeitem = p_item;
while (sizeitem) {
if (sizeitem->type == ITEM_FONT_SIZE) {
ItemFontSize *fi = static_cast<ItemFontSize *>(sizeitem);
return fi->font_size;
}
sizeitem = sizeitem->parent;
}
return -1;
}
int RichTextLabel::_find_outline_size(Item *p_item, int p_default) {
Item *sizeitem = p_item;
while (sizeitem) {
if (sizeitem->type == ITEM_OUTLINE_SIZE) {
ItemOutlineSize *fi = static_cast<ItemOutlineSize *>(sizeitem);
return fi->outline_size;
}
sizeitem = sizeitem->parent;
}
return p_default;
}
Dictionary RichTextLabel::_find_font_features(Item *p_item) {
Item *ffitem = p_item;
while (ffitem) {
if (ffitem->type == ITEM_FONT_FEATURES) {
ItemFontFeatures *fi = static_cast<ItemFontFeatures *>(ffitem);
return fi->opentype_features;
}
ffitem = ffitem->parent;
}
return Dictionary();
}
RichTextLabel::ItemDropcap *RichTextLabel::_find_dc_item(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_DROPCAP) {
return static_cast<ItemDropcap *>(item);
}
item = item->parent;
}
return nullptr;
}
RichTextLabel::ItemList *RichTextLabel::_find_list_item(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_LIST) {
return static_cast<ItemList *>(item);
}
item = item->parent;
}
return nullptr;
}
int RichTextLabel::_find_list(Item *p_item, Vector<int> &r_index, Vector<ItemList *> &r_list) {
Item *item = p_item;
Item *prev_item = p_item;
int level = 0;
while (item) {
if (item->type == ITEM_LIST) {
ItemList *list = static_cast<ItemList *>(item);
ItemFrame *frame = nullptr;
int line = -1;
_find_frame(list, &frame, &line);
int index = 1;
if (frame != nullptr) {
for (int i = list->line + 1; i <= prev_item->line; i++) {
if (_find_list_item(frame->lines[i].from) == list) {
index++;
}
}
}
r_index.push_back(index);
r_list.push_back(list);
prev_item = item;
}
level++;
item = item->parent;
}
return level;
}
int RichTextLabel::_find_margin(Item *p_item, const Ref<Font> &p_base_font, int p_base_font_size) {
Item *item = p_item;
float margin = 0.0;
while (item) {
if (item->type == ITEM_INDENT) {
Ref<Font> font = _find_font(item);
if (font.is_null()) {
font = p_base_font;
}
int font_size = _find_font_size(item);
if (font_size == -1) {
font_size = p_base_font_size;
}
margin += tab_size * font->get_char_size(' ', 0, font_size).width;
} else if (item->type == ITEM_LIST) {
Ref<Font> font = _find_font(item);
if (font.is_null()) {
font = p_base_font;
}
int font_size = _find_font_size(item);
if (font_size == -1) {
font_size = p_base_font_size;
}
margin += tab_size * font->get_char_size(' ', 0, font_size).width;
}
item = item->parent;
}
return margin;
}
HorizontalAlignment RichTextLabel::_find_alignment(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_PARAGRAPH) {
ItemParagraph *p = static_cast<ItemParagraph *>(item);
return p->alignment;
}
item = item->parent;
}
return default_alignment;
}
TextServer::Direction RichTextLabel::_find_direction(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_PARAGRAPH) {
ItemParagraph *p = static_cast<ItemParagraph *>(item);
if (p->direction != Control::TEXT_DIRECTION_INHERITED) {
return (TextServer::Direction)p->direction;
}
}
item = item->parent;
}
if (text_direction == Control::TEXT_DIRECTION_INHERITED) {
return is_layout_rtl() ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR;
} else {
return (TextServer::Direction)text_direction;
}
}
Control::StructuredTextParser RichTextLabel::_find_stt(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_PARAGRAPH) {
ItemParagraph *p = static_cast<ItemParagraph *>(item);
return p->st_parser;
}
item = item->parent;
}
return st_parser;
}
String RichTextLabel::_find_language(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_PARAGRAPH) {
ItemParagraph *p = static_cast<ItemParagraph *>(item);
return p->language;
}
item = item->parent;
}
return language;
}
Color RichTextLabel::_find_color(Item *p_item, const Color &p_default_color) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_COLOR) {
ItemColor *color = static_cast<ItemColor *>(item);
return color->color;
}
item = item->parent;
}
return p_default_color;
}
Color RichTextLabel::_find_outline_color(Item *p_item, const Color &p_default_color) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_OUTLINE_COLOR) {
ItemOutlineColor *color = static_cast<ItemOutlineColor *>(item);
return color->color;
}
item = item->parent;
}
return p_default_color;
}
bool RichTextLabel::_find_underline(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_UNDERLINE) {
return true;
}
item = item->parent;
}
return false;
}
bool RichTextLabel::_find_strikethrough(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_STRIKETHROUGH) {
return true;
}
item = item->parent;
}
return false;
}
void RichTextLabel::_fetch_item_fx_stack(Item *p_item, Vector<ItemFX *> &r_stack) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_CUSTOMFX || item->type == ITEM_SHAKE || item->type == ITEM_WAVE || item->type == ITEM_TORNADO || item->type == ITEM_RAINBOW) {
r_stack.push_back(static_cast<ItemFX *>(item));
}
item = item->parent;
}
}
bool RichTextLabel::_find_meta(Item *p_item, Variant *r_meta, ItemMeta **r_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_META) {
ItemMeta *meta = static_cast<ItemMeta *>(item);
if (r_meta) {
*r_meta = meta->meta;
}
if (r_item) {
*r_item = meta;
}
return true;
}
item = item->parent;
}
return false;
}
Color RichTextLabel::_find_bgcolor(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_BGCOLOR) {
ItemBGColor *color = static_cast<ItemBGColor *>(item);
return color->color;
}
item = item->parent;
}
return Color(0, 0, 0, 0);
}
Color RichTextLabel::_find_fgcolor(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_FGCOLOR) {
ItemFGColor *color = static_cast<ItemFGColor *>(item);
return color->color;
}
item = item->parent;
}
return Color(0, 0, 0, 0);
}
bool RichTextLabel::_find_layout_subitem(Item *from, Item *to) {
if (from && from != to) {
if (from->type != ITEM_FONT && from->type != ITEM_COLOR && from->type != ITEM_UNDERLINE && from->type != ITEM_STRIKETHROUGH) {
return true;
}
for (Item *E : from->subitems) {
bool layout = _find_layout_subitem(E, to);
if (layout) {
return true;
}
}
}
return false;
}
void RichTextLabel::_validate_line_caches(ItemFrame *p_frame) {
if (p_frame->first_invalid_line == p_frame->lines.size()) {
Ref<Font> base_font = get_theme_font(SNAME("normal_font"));
int base_font_size = get_theme_font_size(SNAME("normal_font_size"));
// Update fonts.
if (p_frame->first_invalid_font_line != p_frame->lines.size()) {
for (int i = p_frame->first_invalid_font_line; i < p_frame->lines.size(); i++) {
_update_line_font(p_frame, i, base_font, base_font_size);
}
p_frame->first_resized_line = p_frame->first_invalid_font_line;
p_frame->first_invalid_font_line = p_frame->lines.size();
}
if (p_frame->first_resized_line == p_frame->lines.size()) {
return;
}
// Resize lines without reshaping.
Rect2 text_rect = _get_text_rect();
for (int i = p_frame->first_resized_line; i < p_frame->lines.size(); i++) {
_resize_line(p_frame, i, base_font, base_font_size, text_rect.get_size().width - scroll_w);
}
int total_height = 0;
if (p_frame->lines.size()) {
total_height = p_frame->lines[p_frame->lines.size() - 1].offset.y + p_frame->lines[p_frame->lines.size() - 1].text_buf->get_size().y + p_frame->lines[p_frame->lines.size() - 1].text_buf->get_line_count() * get_theme_constant(SNAME("line_separation"));
}
p_frame->first_resized_line = p_frame->lines.size();
updating_scroll = true;
vscroll->set_max(total_height);
vscroll->set_page(text_rect.size.height);
if (scroll_follow && scroll_following) {
vscroll->set_value(total_height);
}
updating_scroll = false;
if (fit_content_height) {
update_minimum_size();
}
return;
}
// Shape invalid lines.
Rect2 text_rect = _get_text_rect();
Ref<Font> base_font = get_theme_font(SNAME("normal_font"));
int base_font_size = get_theme_font_size(SNAME("normal_font_size"));
int total_chars = (p_frame->first_invalid_line == 0) ? 0 : (p_frame->lines[p_frame->first_invalid_line].char_offset + p_frame->lines[p_frame->first_invalid_line].char_count);
for (int i = p_frame->first_invalid_line; i < p_frame->lines.size(); i++) {
_shape_line(p_frame, i, base_font, base_font_size, text_rect.get_size().width - scroll_w, &total_chars);
}
int total_height = 0;
if (p_frame->lines.size()) {
total_height = p_frame->lines[p_frame->lines.size() - 1].offset.y + p_frame->lines[p_frame->lines.size() - 1].text_buf->get_size().y + p_frame->lines[p_frame->lines.size() - 1].text_buf->get_line_count() * get_theme_constant(SNAME("line_separation"));
}
p_frame->first_invalid_line = p_frame->lines.size();
p_frame->first_resized_line = p_frame->lines.size();
p_frame->first_invalid_font_line = p_frame->lines.size();
updating_scroll = true;
vscroll->set_max(total_height);
vscroll->set_page(text_rect.size.height);
if (scroll_follow && scroll_following) {
vscroll->set_value(total_height);
}
updating_scroll = false;
if (fit_content_height) {
update_minimum_size();
}
}
void RichTextLabel::_invalidate_current_line(ItemFrame *p_frame) {
if (p_frame->lines.size() - 1 <= p_frame->first_invalid_line) {
p_frame->first_invalid_line = p_frame->lines.size() - 1;
update();
}
}
void RichTextLabel::add_text(const String &p_text) {
if (current->type == ITEM_TABLE) {
return; //can't add anything here
}
int pos = 0;
while (pos < p_text.length()) {
int end = p_text.find("\n", pos);
String line;
bool eol = false;
if (end == -1) {
end = p_text.length();
} else {
eol = true;
}
if (pos == 0 && end == p_text.length()) {
line = p_text;
} else {
line = p_text.substr(pos, end - pos);
}
if (line.length() > 0) {
if (current->subitems.size() && current->subitems.back()->get()->type == ITEM_TEXT) {
//append text condition!
ItemText *ti = static_cast<ItemText *>(current->subitems.back()->get());
ti->text += line;
_invalidate_current_line(main);
} else {
//append item condition
ItemText *item = memnew(ItemText);
item->text = line;
_add_item(item, false);
}
}
if (eol) {
ItemNewline *item = memnew(ItemNewline);
item->line = current_frame->lines.size();
_add_item(item, false);
current_frame->lines.resize(current_frame->lines.size() + 1);
if (item->type != ITEM_NEWLINE) {
current_frame->lines.write[current_frame->lines.size() - 1].from = item;
}
_invalidate_current_line(current_frame);
}
pos = end + 1;
}
}
void RichTextLabel::_add_item(Item *p_item, bool p_enter, bool p_ensure_newline) {
p_item->parent = current;
p_item->E = current->subitems.push_back(p_item);
p_item->index = current_idx++;
p_item->char_ofs = current_char_ofs;
if (p_item->type == ITEM_TEXT) {
ItemText *t = (ItemText *)p_item;
current_char_ofs += t->text.length();
} else if (p_item->type == ITEM_IMAGE) {
current_char_ofs++;
}
if (p_enter) {
current = p_item;
}
if (p_ensure_newline) {
Item *from = current_frame->lines[current_frame->lines.size() - 1].from;
// only create a new line for Item types that generate content/layout, ignore those that represent formatting/styling
if (_find_layout_subitem(from, p_item)) {
_invalidate_current_line(current_frame);
current_frame->lines.resize(current_frame->lines.size() + 1);
}
}
if (current_frame->lines[current_frame->lines.size() - 1].from == nullptr) {
current_frame->lines.write[current_frame->lines.size() - 1].from = p_item;
}
p_item->line = current_frame->lines.size() - 1;
_invalidate_current_line(current_frame);
if (fixed_width != -1) {
update_minimum_size();
}
}
void RichTextLabel::_remove_item(Item *p_item, const int p_line, const int p_subitem_line) {
int size = p_item->subitems.size();
if (size == 0) {
p_item->parent->subitems.erase(p_item);
// If a newline was erased, all lines AFTER the newline need to be decremented.
if (p_item->type == ITEM_NEWLINE) {
current_frame->lines.remove_at(p_line);
for (int i = 0; i < current->subitems.size(); i++) {
if (current->subitems[i]->line > p_subitem_line) {
current->subitems[i]->line--;
}
}
}
} else {
// First, remove all child items for the provided item.
for (int i = 0; i < size; i++) {
_remove_item(p_item->subitems.front()->get(), p_line, p_subitem_line);
}
// Then remove the provided item itself.
p_item->parent->subitems.erase(p_item);
}
memdelete(p_item);
}
void RichTextLabel::add_image(const Ref<Texture2D> &p_image, const int p_width, const int p_height, const Color &p_color, InlineAlignment p_alignment) {
if (current->type == ITEM_TABLE) {
return;
}
ERR_FAIL_COND(p_image.is_null());
ERR_FAIL_COND(p_image->get_width() == 0);
ERR_FAIL_COND(p_image->get_height() == 0);
ItemImage *item = memnew(ItemImage);
item->image = p_image;
item->color = p_color;
item->inline_align = p_alignment;
if (p_width > 0) {
// custom width
item->size.width = p_width;
if (p_height > 0) {
// custom height
item->size.height = p_height;
} else {
// calculate height to keep aspect ratio
item->size.height = p_image->get_height() * p_width / p_image->get_width();
}
} else {
if (p_height > 0) {
// custom height
item->size.height = p_height;
// calculate width to keep aspect ratio
item->size.width = p_image->get_width() * p_height / p_image->get_height();
} else {
// keep original width and height
item->size = p_image->get_size();
}
}
_add_item(item, false);
}
void RichTextLabel::add_newline() {
if (current->type == ITEM_TABLE) {
return;
}
ItemNewline *item = memnew(ItemNewline);
item->line = current_frame->lines.size();
_add_item(item, false);
current_frame->lines.resize(current_frame->lines.size() + 1);
_invalidate_current_line(current_frame);
}
bool RichTextLabel::remove_line(const int p_line) {
if (p_line >= current_frame->lines.size() || p_line < 0) {
return false;
}
// Remove all subitems with the same line as that provided.
Vector<int> subitem_indices_to_remove;
for (int i = 0; i < current->subitems.size(); i++) {
if (current->subitems[i]->line == p_line) {
subitem_indices_to_remove.push_back(i);
}
}
bool had_newline = false;
// Reverse for loop to remove items from the end first.
for (int i = subitem_indices_to_remove.size() - 1; i >= 0; i--) {
int subitem_idx = subitem_indices_to_remove[i];
had_newline = had_newline || current->subitems[subitem_idx]->type == ITEM_NEWLINE;
_remove_item(current->subitems[subitem_idx], current->subitems[subitem_idx]->line, p_line);
}
if (!had_newline) {
current_frame->lines.remove_at(p_line);
if (current_frame->lines.size() == 0) {
current_frame->lines.resize(1);
}
}
if (p_line == 0 && current->subitems.size() > 0) {
main->lines.write[0].from = main;
}
main->first_invalid_line = 0; // p_line ???
update();
return true;
}
void RichTextLabel::push_dropcap(const String &p_string, const Ref<Font> &p_font, int p_size, const Rect2 &p_dropcap_margins, const Color &p_color, int p_ol_size, const Color &p_ol_color) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ERR_FAIL_COND(p_string.is_empty());
ERR_FAIL_COND(p_font.is_null());
ERR_FAIL_COND(p_size <= 0);
ItemDropcap *item = memnew(ItemDropcap);
item->text = p_string;
item->font = p_font;
item->font_size = p_size;
item->color = p_color;
item->ol_size = p_ol_size;
item->ol_color = p_ol_color;
item->dropcap_margins = p_dropcap_margins;
_add_item(item, false);
}
void RichTextLabel::push_font(const Ref<Font> &p_font) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ERR_FAIL_COND(p_font.is_null());
ItemFont *item = memnew(ItemFont);
item->font = p_font;
_add_item(item, true);
}
void RichTextLabel::push_normal() {
Ref<Font> normal_font = get_theme_font(SNAME("normal_font"));
ERR_FAIL_COND(normal_font.is_null());
push_font(normal_font);
}
void RichTextLabel::push_bold() {
Ref<Font> bold_font = get_theme_font(SNAME("bold_font"));
ERR_FAIL_COND(bold_font.is_null());
push_font(bold_font);
}
void RichTextLabel::push_bold_italics() {
Ref<Font> bold_italics_font = get_theme_font(SNAME("bold_italics_font"));
ERR_FAIL_COND(bold_italics_font.is_null());
push_font(bold_italics_font);
}
void RichTextLabel::push_italics() {
Ref<Font> italics_font = get_theme_font(SNAME("italics_font"));
ERR_FAIL_COND(italics_font.is_null());
push_font(italics_font);
}
void RichTextLabel::push_mono() {
Ref<Font> mono_font = get_theme_font(SNAME("mono_font"));
ERR_FAIL_COND(mono_font.is_null());
push_font(mono_font);
}
void RichTextLabel::push_font_size(int p_font_size) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemFontSize *item = memnew(ItemFontSize);
item->font_size = p_font_size;
_add_item(item, true);
}
void RichTextLabel::push_font_features(const Dictionary &p_features) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemFontFeatures *item = memnew(ItemFontFeatures);
item->opentype_features = p_features;
_add_item(item, true);
}
void RichTextLabel::push_outline_size(int p_font_size) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemOutlineSize *item = memnew(ItemOutlineSize);
item->outline_size = p_font_size;
_add_item(item, true);
}
void RichTextLabel::push_color(const Color &p_color) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemColor *item = memnew(ItemColor);
item->color = p_color;
_add_item(item, true);
}
void RichTextLabel::push_outline_color(const Color &p_color) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemOutlineColor *item = memnew(ItemOutlineColor);
item->color = p_color;
_add_item(item, true);
}
void RichTextLabel::push_underline() {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemUnderline *item = memnew(ItemUnderline);
_add_item(item, true);
}
void RichTextLabel::push_strikethrough() {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemStrikethrough *item = memnew(ItemStrikethrough);
_add_item(item, true);
}
void RichTextLabel::push_paragraph(HorizontalAlignment p_alignment, Control::TextDirection p_direction, const String &p_language, Control::StructuredTextParser p_st_parser) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemParagraph *item = memnew(ItemParagraph);
item->alignment = p_alignment;
item->direction = p_direction;
item->language = p_language;
item->st_parser = p_st_parser;
_add_item(item, true, true);
}
void RichTextLabel::push_indent(int p_level) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ERR_FAIL_COND(p_level < 0);
ItemIndent *item = memnew(ItemIndent);
item->level = p_level;
_add_item(item, true, true);
}
void RichTextLabel::push_list(int p_level, ListType p_list, bool p_capitalize) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ERR_FAIL_COND(p_level < 0);
ItemList *item = memnew(ItemList);
item->list_type = p_list;
item->level = p_level;
item->capitalize = p_capitalize;
_add_item(item, true, true);
}
void RichTextLabel::push_meta(const Variant &p_meta) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemMeta *item = memnew(ItemMeta);
item->meta = p_meta;
_add_item(item, true);
}
void RichTextLabel::push_table(int p_columns, InlineAlignment p_alignment) {
ERR_FAIL_COND(p_columns < 1);
ItemTable *item = memnew(ItemTable);
item->columns.resize(p_columns);
item->total_width = 0;
item->inline_align = p_alignment;
for (int i = 0; i < item->columns.size(); i++) {
item->columns.write[i].expand = false;
item->columns.write[i].expand_ratio = 1;
}
_add_item(item, true, false);
}
void RichTextLabel::push_fade(int p_start_index, int p_length) {
ItemFade *item = memnew(ItemFade);
item->starting_index = p_start_index;
item->length = p_length;
_add_item(item, true);
}
void RichTextLabel::push_shake(int p_strength = 10, float p_rate = 24.0f) {
ItemShake *item = memnew(ItemShake);
item->strength = p_strength;
item->rate = p_rate;
_add_item(item, true);
}
void RichTextLabel::push_wave(float p_frequency = 1.0f, float p_amplitude = 10.0f) {
ItemWave *item = memnew(ItemWave);
item->frequency = p_frequency;
item->amplitude = p_amplitude;
_add_item(item, true);
}
void RichTextLabel::push_tornado(float p_frequency = 1.0f, float p_radius = 10.0f) {
ItemTornado *item = memnew(ItemTornado);
item->frequency = p_frequency;
item->radius = p_radius;
_add_item(item, true);
}
void RichTextLabel::push_rainbow(float p_saturation, float p_value, float p_frequency) {
ItemRainbow *item = memnew(ItemRainbow);
item->frequency = p_frequency;
item->saturation = p_saturation;
item->value = p_value;
_add_item(item, true);
}
void RichTextLabel::push_bgcolor(const Color &p_color) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemBGColor *item = memnew(ItemBGColor);
item->color = p_color;
_add_item(item, true);
}
void RichTextLabel::push_fgcolor(const Color &p_color) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemFGColor *item = memnew(ItemFGColor);
item->color = p_color;
_add_item(item, true);
}
void RichTextLabel::push_customfx(Ref<RichTextEffect> p_custom_effect, Dictionary p_environment) {
ItemCustomFX *item = memnew(ItemCustomFX);
item->custom_effect = p_custom_effect;
item->char_fx_transform->environment = p_environment;
_add_item(item, true);
}
void RichTextLabel::set_table_column_expand(int p_column, bool p_expand, int p_ratio) {
ERR_FAIL_COND(current->type != ITEM_TABLE);
ItemTable *table = static_cast<ItemTable *>(current);
ERR_FAIL_INDEX(p_column, table->columns.size());
table->columns.write[p_column].expand = p_expand;
table->columns.write[p_column].expand_ratio = p_ratio;
}
void RichTextLabel::set_cell_row_background_color(const Color &p_odd_row_bg, const Color &p_even_row_bg) {
ERR_FAIL_COND(current->type != ITEM_FRAME);
ItemFrame *cell = static_cast<ItemFrame *>(current);
ERR_FAIL_COND(!cell->cell);
cell->odd_row_bg = p_odd_row_bg;
cell->even_row_bg = p_even_row_bg;
}
void RichTextLabel::set_cell_border_color(const Color &p_color) {
ERR_FAIL_COND(current->type != ITEM_FRAME);
ItemFrame *cell = static_cast<ItemFrame *>(current);
ERR_FAIL_COND(!cell->cell);
cell->border = p_color;
}
void RichTextLabel::set_cell_size_override(const Size2 &p_min_size, const Size2 &p_max_size) {
ERR_FAIL_COND(current->type != ITEM_FRAME);
ItemFrame *cell = static_cast<ItemFrame *>(current);
ERR_FAIL_COND(!cell->cell);
cell->min_size_over = p_min_size;
cell->max_size_over = p_max_size;
}
void RichTextLabel::set_cell_padding(const Rect2 &p_padding) {
ERR_FAIL_COND(current->type != ITEM_FRAME);
ItemFrame *cell = static_cast<ItemFrame *>(current);
ERR_FAIL_COND(!cell->cell);
cell->padding = p_padding;
}
void RichTextLabel::push_cell() {
ERR_FAIL_COND(current->type != ITEM_TABLE);
ItemFrame *item = memnew(ItemFrame);
item->parent_frame = current_frame;
_add_item(item, true);
current_frame = item;
item->cell = true;
item->lines.resize(1);
item->lines.write[0].from = nullptr;
item->first_invalid_line = 0; // parent frame last line ???
}
int RichTextLabel::get_current_table_column() const {
ERR_FAIL_COND_V(current->type != ITEM_TABLE, -1);
ItemTable *table = static_cast<ItemTable *>(current);
return table->subitems.size() % table->columns.size();
}
void RichTextLabel::pop() {
ERR_FAIL_COND(!current->parent);
if (current->type == ITEM_FRAME) {
current_frame = static_cast<ItemFrame *>(current)->parent_frame;
}
current = current->parent;
}
void RichTextLabel::clear() {
main->_clear_children();
current = main;
current_frame = main;
main->lines.clear();
main->lines.resize(1);
main->first_invalid_line = 0;
update();
selection.click_frame = nullptr;
selection.click_item = nullptr;
selection.active = false;
current_idx = 1;
current_char_ofs = 0;
if (scroll_follow) {
scroll_following = true;
}
if (fixed_width != -1) {
update_minimum_size();
}
}
void RichTextLabel::set_tab_size(int p_spaces) {
tab_size = p_spaces;
main->first_resized_line = 0;
update();
}
int RichTextLabel::get_tab_size() const {
return tab_size;
}
void RichTextLabel::set_fit_content_height(bool p_enabled) {
if (p_enabled != fit_content_height) {
fit_content_height = p_enabled;
update_minimum_size();
}
}
bool RichTextLabel::is_fit_content_height_enabled() const {
return fit_content_height;
}
void RichTextLabel::set_meta_underline(bool p_underline) {
underline_meta = p_underline;
update();
}
bool RichTextLabel::is_meta_underlined() const {
return underline_meta;
}
void RichTextLabel::set_override_selected_font_color(bool p_override_selected_font_color) {
override_selected_font_color = p_override_selected_font_color;
}
bool RichTextLabel::is_overriding_selected_font_color() const {
return override_selected_font_color;
}
void RichTextLabel::set_offset(int p_pixel) {
vscroll->set_value(p_pixel);
}
void RichTextLabel::set_scroll_active(bool p_active) {
if (scroll_active == p_active) {
return;
}
scroll_active = p_active;
vscroll->set_drag_node_enabled(p_active);
update();
}
bool RichTextLabel::is_scroll_active() const {
return scroll_active;
}
void RichTextLabel::set_scroll_follow(bool p_follow) {
scroll_follow = p_follow;
if (!vscroll->is_visible_in_tree() || vscroll->get_value() >= (vscroll->get_max() - vscroll->get_page())) {
scroll_following = true;
}
}
bool RichTextLabel::is_scroll_following() const {
return scroll_follow;
}
void RichTextLabel::parse_bbcode(const String &p_bbcode) {
clear();
append_text(p_bbcode);
}
void RichTextLabel::append_text(const String &p_bbcode) {
int pos = 0;
List<String> tag_stack;
Ref<Font> normal_font = get_theme_font(SNAME("normal_font"));
Ref<Font> bold_font = get_theme_font(SNAME("bold_font"));
Ref<Font> italics_font = get_theme_font(SNAME("italics_font"));
Ref<Font> bold_italics_font = get_theme_font(SNAME("bold_italics_font"));
Ref<Font> mono_font = get_theme_font(SNAME("mono_font"));
Color base_color = get_theme_color(SNAME("default_color"));
int indent_level = 0;
bool in_bold = false;
bool in_italics = false;
set_process_internal(false);
while (pos < p_bbcode.length()) {
int brk_pos = p_bbcode.find("[", pos);
if (brk_pos < 0) {
brk_pos = p_bbcode.length();
}
if (brk_pos > pos) {
add_text(p_bbcode.substr(pos, brk_pos - pos));
}
if (brk_pos == p_bbcode.length()) {
break; //nothing else to add
}
int brk_end = p_bbcode.find("]", brk_pos + 1);
if (brk_end == -1) {
//no close, add the rest
add_text(p_bbcode.substr(brk_pos, p_bbcode.length() - brk_pos));
break;
}
String tag = p_bbcode.substr(brk_pos + 1, brk_end - brk_pos - 1);
Vector<String> split_tag_block = tag.split(" ", false);
// Find optional parameters.
String bbcode_name;
typedef Map<String, String> OptionMap;
OptionMap bbcode_options;
if (!split_tag_block.is_empty()) {
bbcode_name = split_tag_block[0];
for (int i = 1; i < split_tag_block.size(); i++) {
const String &expr = split_tag_block[i];
int value_pos = expr.find("=");
if (value_pos > -1) {
bbcode_options[expr.substr(0, value_pos)] = expr.substr(value_pos + 1);
}
}
} else {
bbcode_name = tag;
}
// Find main parameter.
String bbcode_value;
int main_value_pos = bbcode_name.find("=");
if (main_value_pos > -1) {
bbcode_value = bbcode_name.substr(main_value_pos + 1);
bbcode_name = bbcode_name.substr(0, main_value_pos);
}
if (tag.begins_with("/") && tag_stack.size()) {
bool tag_ok = tag_stack.size() && tag_stack.front()->get() == tag.substr(1, tag.length());
if (tag_stack.front()->get() == "b") {
in_bold = false;
}
if (tag_stack.front()->get() == "i") {
in_italics = false;
}
if ((tag_stack.front()->get() == "indent") || (tag_stack.front()->get() == "ol") || (tag_stack.front()->get() == "ul")) {
indent_level--;
}
if (!tag_ok) {
add_text("[" + tag);
pos = brk_end;
continue;
}
tag_stack.pop_front();
pos = brk_end + 1;
if (tag != "/img" && tag != "/dropcap") {
pop();
}
} else if (tag == "b") {
//use bold font
in_bold = true;
if (in_italics) {
push_font(bold_italics_font);
} else {
push_font(bold_font);
}
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "i") {
//use italics font
in_italics = true;
if (in_bold) {
push_font(bold_italics_font);
} else {
push_font(italics_font);
}
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "code") {
//use monospace font
push_font(mono_font);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag.begins_with("table=")) {
Vector<String> subtag = tag.substr(6, tag.length()).split(",");
int columns = subtag[0].to_int();
if (columns < 1) {
columns = 1;
}
int alignment = INLINE_ALIGNMENT_TOP;
if (subtag.size() > 2) {
if (subtag[1] == "top" || subtag[1] == "t") {
alignment = INLINE_ALIGNMENT_TOP_TO;
} else if (subtag[1] == "center" || subtag[1] == "c") {
alignment = INLINE_ALIGNMENT_CENTER_TO;
} else if (subtag[1] == "bottom" || subtag[1] == "b") {
alignment = INLINE_ALIGNMENT_BOTTOM_TO;
}
if (subtag[2] == "top" || subtag[2] == "t") {
alignment |= INLINE_ALIGNMENT_TO_TOP;
} else if (subtag[2] == "center" || subtag[2] == "c") {
alignment |= INLINE_ALIGNMENT_TO_CENTER;
} else if (subtag[2] == "baseline" || subtag[2] == "l") {
alignment |= INLINE_ALIGNMENT_TO_BASELINE;
} else if (subtag[2] == "bottom" || subtag[2] == "b") {
alignment |= INLINE_ALIGNMENT_TO_BOTTOM;
}
} else if (subtag.size() > 1) {
if (subtag[1] == "top" || subtag[1] == "t") {
alignment = INLINE_ALIGNMENT_TOP;
} else if (subtag[1] == "center" || subtag[1] == "c") {
alignment = INLINE_ALIGNMENT_CENTER;
} else if (subtag[1] == "bottom" || subtag[1] == "b") {
alignment = INLINE_ALIGNMENT_BOTTOM;
}
}
push_table(columns, (InlineAlignment)alignment);
pos = brk_end + 1;
tag_stack.push_front("table");
} else if (tag == "cell") {
push_cell();
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag.begins_with("cell=")) {
int ratio = tag.substr(5, tag.length()).to_int();
if (ratio < 1) {
ratio = 1;
}
set_table_column_expand(get_current_table_column(), true, ratio);
push_cell();
pos = brk_end + 1;
tag_stack.push_front("cell");
} else if (tag.begins_with("cell ")) {
Vector<String> subtag = tag.substr(5, tag.length()).split(" ");
for (int i = 0; i < subtag.size(); i++) {
Vector<String> subtag_a = subtag[i].split("=");
if (subtag_a.size() == 2) {
if (subtag_a[0] == "expand") {
int ratio = subtag_a[1].to_int();
if (ratio < 1) {
ratio = 1;
}
set_table_column_expand(get_current_table_column(), true, ratio);
}
}
}
push_cell();
const Color fallback_color = Color(0, 0, 0, 0);
for (int i = 0; i < subtag.size(); i++) {
Vector<String> subtag_a = subtag[i].split("=");
if (subtag_a.size() == 2) {
if (subtag_a[0] == "border") {
Color color = Color::from_string(subtag_a[1], fallback_color);
set_cell_border_color(color);
} else if (subtag_a[0] == "bg") {
Vector<String> subtag_b = subtag_a[1].split(",");
if (subtag_b.size() == 2) {
Color color1 = Color::from_string(subtag_b[0], fallback_color);
Color color2 = Color::from_string(subtag_b[1], fallback_color);
set_cell_row_background_color(color1, color2);
}
}
}
}
pos = brk_end + 1;
tag_stack.push_front("cell");
} else if (tag == "u") {
//use underline
push_underline();
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "s") {
//use strikethrough
push_strikethrough();
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "lb") {
add_text("[");
pos = brk_end + 1;
} else if (tag == "rb") {
add_text("]");
pos = brk_end + 1;
} else if (tag == "lrm") {
add_text(String::chr(0x200E));
pos = brk_end + 1;
} else if (tag == "rlm") {
add_text(String::chr(0x200F));
pos = brk_end + 1;
} else if (tag == "lre") {
add_text(String::chr(0x202A));
pos = brk_end + 1;
} else if (tag == "rle") {
add_text(String::chr(0x202B));
pos = brk_end + 1;
} else if (tag == "lro") {
add_text(String::chr(0x202D));
pos = brk_end + 1;
} else if (tag == "rlo") {
add_text(String::chr(0x202E));
pos = brk_end + 1;
} else if (tag == "pdf") {
add_text(String::chr(0x202C));
pos = brk_end + 1;
} else if (tag == "alm") {
add_text(String::chr(0x061c));
pos = brk_end + 1;
} else if (tag == "lri") {
add_text(String::chr(0x2066));
pos = brk_end + 1;
} else if (tag == "rli") {
add_text(String::chr(0x2027));
pos = brk_end + 1;
} else if (tag == "fsi") {
add_text(String::chr(0x2068));
pos = brk_end + 1;
} else if (tag == "pdi") {
add_text(String::chr(0x2069));
pos = brk_end + 1;
} else if (tag == "zwj") {
add_text(String::chr(0x200D));
pos = brk_end + 1;
} else if (tag == "zwnj") {
add_text(String::chr(0x200C));
pos = brk_end + 1;
} else if (tag == "wj") {
add_text(String::chr(0x2060));
pos = brk_end + 1;
} else if (tag == "shy") {
add_text(String::chr(0x00AD));
pos = brk_end + 1;
} else if (tag == "center") {
push_paragraph(HORIZONTAL_ALIGNMENT_CENTER);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "fill") {
push_paragraph(HORIZONTAL_ALIGNMENT_FILL);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "right") {
push_paragraph(HORIZONTAL_ALIGNMENT_RIGHT);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "ul") {
indent_level++;
push_list(indent_level, LIST_DOTS, false);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if ((tag == "ol") || (tag == "ol type=1")) {
indent_level++;
push_list(indent_level, LIST_NUMBERS, false);
pos = brk_end + 1;
tag_stack.push_front("ol");
} else if (tag == "ol type=a") {
indent_level++;
push_list(indent_level, LIST_LETTERS, false);
pos = brk_end + 1;
tag_stack.push_front("ol");
} else if (tag == "ol type=A") {
indent_level++;
push_list(indent_level, LIST_LETTERS, true);
pos = brk_end + 1;
tag_stack.push_front("ol");
} else if (tag == "ol type=i") {
indent_level++;
push_list(indent_level, LIST_ROMAN, false);
pos = brk_end + 1;
tag_stack.push_front("ol");
} else if (tag == "ol type=I") {
indent_level++;
push_list(indent_level, LIST_ROMAN, true);
pos = brk_end + 1;
tag_stack.push_front("ol");
} else if (tag == "indent") {
indent_level++;
push_indent(indent_level);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "p") {
push_paragraph(HORIZONTAL_ALIGNMENT_LEFT);
pos = brk_end + 1;
tag_stack.push_front("p");
} else if (tag.begins_with("p ")) {
Vector<String> subtag = tag.substr(2, tag.length()).split(" ");
HorizontalAlignment alignment = HORIZONTAL_ALIGNMENT_LEFT;
Control::TextDirection dir = Control::TEXT_DIRECTION_INHERITED;
String lang;
Control::StructuredTextParser st_parser = STRUCTURED_TEXT_DEFAULT;
for (int i = 0; i < subtag.size(); i++) {
Vector<String> subtag_a = subtag[i].split("=");
if (subtag_a.size() == 2) {
if (subtag_a[0] == "align") {
if (subtag_a[1] == "l" || subtag_a[1] == "left") {
alignment = HORIZONTAL_ALIGNMENT_LEFT;
} else if (subtag_a[1] == "c" || subtag_a[1] == "center") {
alignment = HORIZONTAL_ALIGNMENT_CENTER;
} else if (subtag_a[1] == "r" || subtag_a[1] == "right") {
alignment = HORIZONTAL_ALIGNMENT_RIGHT;
} else if (subtag_a[1] == "f" || subtag_a[1] == "fill") {
alignment = HORIZONTAL_ALIGNMENT_FILL;
}
} else if (subtag_a[0] == "dir" || subtag_a[0] == "direction") {
if (subtag_a[1] == "a" || subtag_a[1] == "auto") {
dir = Control::TEXT_DIRECTION_AUTO;
} else if (subtag_a[1] == "l" || subtag_a[1] == "ltr") {
dir = Control::TEXT_DIRECTION_LTR;
} else if (subtag_a[1] == "r" || subtag_a[1] == "rtl") {
dir = Control::TEXT_DIRECTION_RTL;
}
} else if (subtag_a[0] == "lang" || subtag_a[0] == "language") {
lang = subtag_a[1];
} else if (subtag_a[0] == "st" || subtag_a[0] == "bidi_override") {
if (subtag_a[1] == "d" || subtag_a[1] == "default") {
st_parser = STRUCTURED_TEXT_DEFAULT;
} else if (subtag_a[1] == "u" || subtag_a[1] == "uri") {
st_parser = STRUCTURED_TEXT_URI;
} else if (subtag_a[1] == "f" || subtag_a[1] == "file") {
st_parser = STRUCTURED_TEXT_FILE;
} else if (subtag_a[1] == "e" || subtag_a[1] == "email") {
st_parser = STRUCTURED_TEXT_EMAIL;
} else if (subtag_a[1] == "l" || subtag_a[1] == "list") {
st_parser = STRUCTURED_TEXT_LIST;
} else if (subtag_a[1] == "n" || subtag_a[1] == "none") {
st_parser = STRUCTURED_TEXT_NONE;
} else if (subtag_a[1] == "c" || subtag_a[1] == "custom") {
st_parser = STRUCTURED_TEXT_CUSTOM;
}
}
}
}
push_paragraph(alignment, dir, lang, st_parser);
pos = brk_end + 1;
tag_stack.push_front("p");
} else if (tag == "url") {
int end = p_bbcode.find("[", brk_end);
if (end == -1) {
end = p_bbcode.length();
}
String url = p_bbcode.substr(brk_end + 1, end - brk_end - 1);
push_meta(url);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag.begins_with("url=")) {
String url = tag.substr(4, tag.length());
push_meta(url);
pos = brk_end + 1;
tag_stack.push_front("url");
} else if (tag.begins_with("dropcap")) {
Vector<String> subtag = tag.substr(5, tag.length()).split(" ");
Ref<Font> f = get_theme_font(SNAME("normal_font"));
int fs = get_theme_font_size(SNAME("normal_font_size")) * 3;
Color color = get_theme_color(SNAME("default_color"));
Color outline_color = get_theme_color(SNAME("outline_color"));
int outline_size = get_theme_constant(SNAME("outline_size"));
Rect2 dropcap_margins = Rect2();
for (int i = 0; i < subtag.size(); i++) {
Vector<String> subtag_a = subtag[i].split("=");
if (subtag_a.size() == 2) {
if (subtag_a[0] == "font" || subtag_a[0] == "f") {
String fnt = subtag_a[1];
Ref<Font> font = ResourceLoader::load(fnt, "Font");
if (font.is_valid()) {
f = font;
}
} else if (subtag_a[0] == "font_size") {
fs = subtag_a[1].to_int();
} else if (subtag_a[0] == "margins") {
Vector<String> subtag_b = subtag_a[1].split(",");
if (subtag_b.size() == 4) {
dropcap_margins.position.x = subtag_b[0].to_float();
dropcap_margins.position.y = subtag_b[1].to_float();
dropcap_margins.size.x = subtag_b[2].to_float();
dropcap_margins.size.y = subtag_b[3].to_float();
}
} else if (subtag_a[0] == "outline_size") {
outline_size = subtag_a[1].to_int();
} else if (subtag_a[0] == "color") {
color = Color::from_string(subtag_a[1], color);
} else if (subtag_a[0] == "outline_color") {
outline_color = Color::from_string(subtag_a[1], outline_color);
}
}
}
int end = p_bbcode.find("[", brk_end);
if (end == -1) {
end = p_bbcode.length();
}
String txt = p_bbcode.substr(brk_end + 1, end - brk_end - 1);
push_dropcap(txt, f, fs, dropcap_margins, color, outline_size, outline_color);
pos = end;
tag_stack.push_front(bbcode_name);
} else if (tag.begins_with("img")) {
int alignment = INLINE_ALIGNMENT_CENTER;
if (tag.begins_with("img=")) {
Vector<String> subtag = tag.substr(4, tag.length()).split(",");
if (subtag.size() > 1) {
if (subtag[0] == "top" || subtag[0] == "t") {
alignment = INLINE_ALIGNMENT_TOP_TO;
} else if (subtag[0] == "center" || subtag[0] == "c") {
alignment = INLINE_ALIGNMENT_CENTER_TO;
} else if (subtag[0] == "bottom" || subtag[0] == "b") {
alignment = INLINE_ALIGNMENT_BOTTOM_TO;
}
if (subtag[1] == "top" || subtag[1] == "t") {
alignment |= INLINE_ALIGNMENT_TO_TOP;
} else if (subtag[1] == "center" || subtag[1] == "c") {
alignment |= INLINE_ALIGNMENT_TO_CENTER;
} else if (subtag[1] == "baseline" || subtag[1] == "l") {
alignment |= INLINE_ALIGNMENT_TO_BASELINE;
} else if (subtag[1] == "bottom" || subtag[1] == "b") {
alignment |= INLINE_ALIGNMENT_TO_BOTTOM;
}
} else if (subtag.size() > 0) {
if (subtag[0] == "top" || subtag[0] == "t") {
alignment = INLINE_ALIGNMENT_TOP;
} else if (subtag[0] == "center" || subtag[0] == "c") {
alignment = INLINE_ALIGNMENT_CENTER;
} else if (subtag[0] == "bottom" || subtag[0] == "b") {
alignment = INLINE_ALIGNMENT_BOTTOM;
}
}
}
int end = p_bbcode.find("[", brk_end);
if (end == -1) {
end = p_bbcode.length();
}
String image = p_bbcode.substr(brk_end + 1, end - brk_end - 1);
Ref<Texture2D> texture = ResourceLoader::load(image, "Texture2D");
if (texture.is_valid()) {
Color color = Color(1.0, 1.0, 1.0);
OptionMap::Element *color_option = bbcode_options.find("color");
if (color_option) {
color = Color::from_string(color_option->value(), color);
}
int width = 0;
int height = 0;
if (!bbcode_value.is_empty()) {
int sep = bbcode_value.find("x");
if (sep == -1) {
width = bbcode_value.to_int();
} else {
width = bbcode_value.substr(0, sep).to_int();
height = bbcode_value.substr(sep + 1).to_int();
}
} else {
OptionMap::Element *width_option = bbcode_options.find("width");
if (width_option) {
width = width_option->value().to_int();
}
OptionMap::Element *height_option = bbcode_options.find("height");
if (height_option) {
height = height_option->value().to_int();
}
}
add_image(texture, width, height, color, (InlineAlignment)alignment);
}
pos = end;
tag_stack.push_front(bbcode_name);
} else if (tag.begins_with("color=")) {
String color_str = tag.substr(6, tag.length());
Color color = Color::from_string(color_str, base_color);
push_color(color);
pos = brk_end + 1;
tag_stack.push_front("color");
} else if (tag.begins_with("outline_color=")) {
String color_str = tag.substr(14, tag.length());
Color color = Color::from_string(color_str, base_color);
push_outline_color(color);
pos = brk_end + 1;
tag_stack.push_front("outline_color");
} else if (tag.begins_with("font=")) {
String fnt = tag.substr(5, tag.length());
Ref<Font> font = ResourceLoader::load(fnt, "Font");
if (font.is_valid()) {
push_font(font);
} else {
push_font(normal_font);
}
pos = brk_end + 1;
tag_stack.push_front("font");
} else if (tag.begins_with("font_size=")) {
int fnt_size = tag.substr(10, tag.length()).to_int();
push_font_size(fnt_size);
pos = brk_end + 1;
tag_stack.push_front("font_size");
} else if (tag.begins_with("opentype_features=")) {
String fnt_ftr = tag.substr(18, tag.length());
Vector<String> subtag = fnt_ftr.split(",");
Dictionary ftrs;
for (int i = 0; i < subtag.size(); i++) {
Vector<String> subtag_a = subtag[i].split("=");
if (subtag_a.size() == 2) {
ftrs[TS->name_to_tag(subtag_a[0])] = subtag_a[1].to_int();
} else if (subtag_a.size() == 1) {
ftrs[TS->name_to_tag(subtag_a[0])] = 1;
}
}
push_font_features(ftrs);
pos = brk_end + 1;
tag_stack.push_front("opentype_features");
} else if (tag.begins_with("font ")) {
Vector<String> subtag = tag.substr(2, tag.length()).split(" ");
for (int i = 1; i < subtag.size(); i++) {
Vector<String> subtag_a = subtag[i].split("=", true, 2);
if (subtag_a.size() == 2) {
if (subtag_a[0] == "name" || subtag_a[0] == "n") {
String fnt = subtag_a[1];
Ref<Font> font = ResourceLoader::load(fnt, "Font");
if (font.is_valid()) {
push_font(font);
} else {
push_font(normal_font);
}
} else if (subtag_a[0] == "size" || subtag_a[0] == "s") {
int fnt_size = subtag_a[1].to_int();
push_font_size(fnt_size);
}
}
}
pos = brk_end + 1;
tag_stack.push_front("font");
} else if (tag.begins_with("outline_size=")) {
int fnt_size = tag.substr(13, tag.length()).to_int();
push_outline_size(fnt_size);
pos = brk_end + 1;
tag_stack.push_front("outline_size");
} else if (bbcode_name == "fade") {
int start_index = 0;
OptionMap::Element *start_option = bbcode_options.find("start");
if (start_option) {
start_index = start_option->value().to_int();
}
int length = 10;
OptionMap::Element *length_option = bbcode_options.find("length");
if (length_option) {
length = length_option->value().to_int();
}
push_fade(start_index, length);
pos = brk_end + 1;
tag_stack.push_front("fade");
} else if (bbcode_name == "shake") {
int strength = 5;
OptionMap::Element *strength_option = bbcode_options.find("level");
if (strength_option) {
strength = strength_option->value().to_int();
}
float rate = 20.0f;
OptionMap::Element *rate_option = bbcode_options.find("rate");
if (rate_option) {
rate = rate_option->value().to_float();
}
push_shake(strength, rate);
pos = brk_end + 1;
tag_stack.push_front("shake");
set_process_internal(true);
} else if (bbcode_name == "wave") {
float amplitude = 20.0f;
OptionMap::Element *amplitude_option = bbcode_options.find("amp");
if (amplitude_option) {
amplitude = amplitude_option->value().to_float();
}
float period = 5.0f;
OptionMap::Element *period_option = bbcode_options.find("freq");
if (period_option) {
period = period_option->value().to_float();
}
push_wave(period, amplitude);
pos = brk_end + 1;
tag_stack.push_front("wave");
set_process_internal(true);
} else if (bbcode_name == "tornado") {
float radius = 10.0f;
OptionMap::Element *radius_option = bbcode_options.find("radius");
if (radius_option) {
radius = radius_option->value().to_float();
}
float frequency = 1.0f;
OptionMap::Element *frequency_option = bbcode_options.find("freq");
if (frequency_option) {
frequency = frequency_option->value().to_float();
}
push_tornado(frequency, radius);
pos = brk_end + 1;
tag_stack.push_front("tornado");
set_process_internal(true);
} else if (bbcode_name == "rainbow") {
float saturation = 0.8f;
OptionMap::Element *saturation_option = bbcode_options.find("sat");
if (saturation_option) {
saturation = saturation_option->value().to_float();
}
float value = 0.8f;
OptionMap::Element *value_option = bbcode_options.find("val");
if (value_option) {
value = value_option->value().to_float();
}
float frequency = 1.0f;
OptionMap::Element *frequency_option = bbcode_options.find("freq");
if (frequency_option) {
frequency = frequency_option->value().to_float();
}
push_rainbow(saturation, value, frequency);
pos = brk_end + 1;
tag_stack.push_front("rainbow");
set_process_internal(true);
} else if (tag.begins_with("bgcolor=")) {
String color_str = tag.substr(8, tag.length());
Color color = Color::from_string(color_str, base_color);
push_bgcolor(color);
pos = brk_end + 1;
tag_stack.push_front("bgcolor");
} else if (tag.begins_with("fgcolor=")) {
String color_str = tag.substr(8, tag.length());
Color color = Color::from_string(color_str, base_color);
push_fgcolor(color);
pos = brk_end + 1;
tag_stack.push_front("fgcolor");
} else {
Vector<String> &expr = split_tag_block;
if (expr.size() < 1) {
add_text("[");
pos = brk_pos + 1;
} else {
String identifier = expr[0];
expr.remove_at(0);
Dictionary properties = parse_expressions_for_values(expr);
Ref<RichTextEffect> effect = _get_custom_effect_by_code(identifier);
if (!effect.is_null()) {
push_customfx(effect, properties);
pos = brk_end + 1;
tag_stack.push_front(identifier);
set_process_internal(true);
} else {
add_text("["); //ignore
pos = brk_pos + 1;
}
}
}
}
Vector<ItemFX *> fx_items;
for (Item *E : main->subitems) {
Item *subitem = static_cast<Item *>(E);
_fetch_item_fx_stack(subitem, fx_items);
if (fx_items.size()) {
set_process_internal(true);
break;
}
}
}
void RichTextLabel::scroll_to_paragraph(int p_paragraph) {
ERR_FAIL_INDEX(p_paragraph, main->lines.size());
_validate_line_caches(main);
vscroll->set_value(main->lines[p_paragraph].offset.y);
}
int RichTextLabel::get_paragraph_count() const {
return current_frame->lines.size();
}
int RichTextLabel::get_visible_paragraph_count() const {
if (!is_visible()) {
return 0;
}
return visible_paragraph_count;
}
void RichTextLabel::scroll_to_line(int p_line) {
_validate_line_caches(main);
int line_count = 0;
for (int i = 0; i < main->lines.size(); i++) {
if ((line_count <= p_line) && (line_count + main->lines[i].text_buf->get_line_count() >= p_line)) {
float line_offset = 0.f;
for (int j = 0; j < p_line - line_count; j++) {
line_offset += main->lines[i].text_buf->get_line_size(j).y + get_theme_constant(SNAME("line_separation"));
}
vscroll->set_value(main->lines[i].offset.y + line_offset);
return;
}
line_count += main->lines[i].text_buf->get_line_count();
}
}
float RichTextLabel::get_line_offset(int p_line) {
int line_count = 0;
for (int i = 0; i < main->lines.size(); i++) {
if ((line_count <= p_line) && (p_line <= line_count + main->lines[i].text_buf->get_line_count())) {
float line_offset = 0.f;
for (int j = 0; j < p_line - line_count; j++) {
line_offset += main->lines[i].text_buf->get_line_size(j).y + get_theme_constant(SNAME("line_separation"));
}
return main->lines[i].offset.y + line_offset;
}
line_count += main->lines[i].text_buf->get_line_count();
}
return 0;
}
float RichTextLabel::get_paragraph_offset(int p_paragraph) {
if (0 <= p_paragraph && p_paragraph < main->lines.size()) {
return main->lines[p_paragraph].offset.y;
}
return 0;
}
int RichTextLabel::get_line_count() const {
int line_count = 0;
for (int i = 0; i < main->lines.size(); i++) {
line_count += main->lines[i].text_buf->get_line_count();
}
return line_count;
}
int RichTextLabel::get_visible_line_count() const {
if (!is_visible()) {
return 0;
}
return visible_line_count;
}
void RichTextLabel::set_selection_enabled(bool p_enabled) {
selection.enabled = p_enabled;
if (!p_enabled) {
if (selection.active) {
selection.active = false;
update();
}
set_focus_mode(FOCUS_NONE);
} else {
set_focus_mode(FOCUS_ALL);
}
}
void RichTextLabel::set_deselect_on_focus_loss_enabled(const bool p_enabled) {
deselect_on_focus_loss_enabled = p_enabled;
if (p_enabled && selection.active && !has_focus()) {
selection.active = false;
update();
}
}
Variant RichTextLabel::get_drag_data(const Point2 &p_point) {
if (selection.drag_attempt && selection.enabled) {
String t = get_selected_text();
Label *l = memnew(Label);
l->set_text(t);
set_drag_preview(l);
return t;
}
return Variant();
}
bool RichTextLabel::_is_click_inside_selection() const {
if (selection.active && selection.enabled && selection.click_frame && selection.from_frame && selection.to_frame) {
const Line &l_click = selection.click_frame->lines[selection.click_line];
const Line &l_from = selection.from_frame->lines[selection.from_line];
const Line &l_to = selection.to_frame->lines[selection.to_line];
return (l_click.char_offset + selection.click_char >= l_from.char_offset + selection.from_char) && (l_click.char_offset + selection.click_char <= l_to.char_offset + selection.to_char);
} else {
return false;
}
}
bool RichTextLabel::_search_table(ItemTable *p_table, List<Item *>::Element *p_from, const String &p_string, bool p_reverse_search) {
List<Item *>::Element *E = p_from;
while (E != nullptr) {
ERR_CONTINUE(E->get()->type != ITEM_FRAME); // Children should all be frames.
ItemFrame *frame = static_cast<ItemFrame *>(E->get());
if (p_reverse_search) {
for (int i = frame->lines.size() - 1; i >= 0; i--) {
if (_search_line(frame, i, p_string, -1, p_reverse_search)) {
return true;
}
}
} else {
for (int i = 0; i < frame->lines.size(); i++) {
if (_search_line(frame, i, p_string, 0, p_reverse_search)) {
return true;
}
}
}
E = p_reverse_search ? E->prev() : E->next();
}
return false;
}
bool RichTextLabel::_search_line(ItemFrame *p_frame, int p_line, const String &p_string, int p_char_idx, bool p_reverse_search) {
ERR_FAIL_COND_V(p_frame == nullptr, false);
ERR_FAIL_COND_V(p_line < 0 || p_line >= p_frame->lines.size(), false);
Line &l = p_frame->lines.write[p_line];
String text;
Item *it_to = (p_line + 1 < p_frame->lines.size()) ? p_frame->lines[p_line + 1].from : nullptr;
for (Item *it = l.from; it && it != it_to; it = _get_next_item(it)) {
switch (it->type) {
case ITEM_NEWLINE: {
text += "\n";
} break;
case ITEM_TEXT: {
ItemText *t = (ItemText *)it;
text += t->text;
} break;
case ITEM_IMAGE: {
text += " ";
} break;
case ITEM_TABLE: {
ItemTable *table = static_cast<ItemTable *>(it);
List<Item *>::Element *E = p_reverse_search ? table->subitems.back() : table->subitems.front();
if (_search_table(table, E, p_string, p_reverse_search)) {
return true;
}
} break;
default:
break;
}
}
int sp = -1;
if (p_reverse_search) {
sp = text.rfindn(p_string, p_char_idx);
} else {
sp = text.findn(p_string, p_char_idx);
}
if (sp != -1) {
selection.from_frame = p_frame;
selection.from_line = p_line;
selection.from_item = _get_item_at_pos(l.from, it_to, sp);
selection.from_char = sp;
selection.to_frame = p_frame;
selection.to_line = p_line;
selection.to_item = _get_item_at_pos(l.from, it_to, sp + p_string.length());
selection.to_char = sp + p_string.length();
selection.active = true;
return true;
}
return false;
}
bool RichTextLabel::search(const String &p_string, bool p_from_selection, bool p_search_previous) {
ERR_FAIL_COND_V(!selection.enabled, false);
if (p_string.size() == 0) {
selection.active = false;
return false;
}
int char_idx = p_search_previous ? -1 : 0;
int current_line = 0;
int ending_line = main->lines.size() - 1;
if (p_from_selection && selection.active) {
// First check to see if other results exist in current line
char_idx = p_search_previous ? selection.from_char - 1 : selection.to_char;
if (!(p_search_previous && char_idx < 0) &&
_search_line(selection.from_frame, selection.from_line, p_string, char_idx, p_search_previous)) {
scroll_to_line(selection.from_frame->line + selection.from_line);
update();
return true;
}
char_idx = p_search_previous ? -1 : 0;
// Next, check to see if the current search result is in a table
if (selection.from_frame->parent != nullptr && selection.from_frame->parent->type == ITEM_TABLE) {
// Find last search result in table
ItemTable *parent_table = static_cast<ItemTable *>(selection.from_frame->parent);
List<Item *>::Element *parent_element = p_search_previous ? parent_table->subitems.back() : parent_table->subitems.front();
while (parent_element->get() != selection.from_frame) {
parent_element = p_search_previous ? parent_element->prev() : parent_element->next();
ERR_FAIL_COND_V(parent_element == nullptr, false);
}
// Search remainder of table
if (!(p_search_previous && parent_element == parent_table->subitems.front()) &&
parent_element != parent_table->subitems.back()) {
parent_element = p_search_previous ? parent_element->prev() : parent_element->next(); // Don't want to search current item
ERR_FAIL_COND_V(parent_element == nullptr, false);
// Search for next element
if (_search_table(parent_table, parent_element, p_string, p_search_previous)) {
scroll_to_line(selection.from_frame->line + selection.from_line);
update();
return true;
}
}
}
ending_line = selection.from_frame->line + selection.from_line;
current_line = p_search_previous ? ending_line - 1 : ending_line + 1;
} else if (p_search_previous) {
current_line = ending_line;
ending_line = 0;
}
// Search remainder of the file
while (current_line != ending_line) {
// Wrap around
if (current_line < 0) {
current_line = main->lines.size() - 1;
} else if (current_line >= main->lines.size()) {
current_line = 0;
}
if (_search_line(main, current_line, p_string, char_idx, p_search_previous)) {
scroll_to_line(current_line);
update();
return true;
}
p_search_previous ? current_line-- : current_line++;
}
if (p_from_selection && selection.active) {
// Check contents of selection
return _search_line(main, current_line, p_string, char_idx, p_search_previous);
} else {
return false;
}
}
String RichTextLabel::_get_line_text(ItemFrame *p_frame, int p_line, Selection p_selection) const {
String text;
ERR_FAIL_COND_V(p_frame == nullptr, text);
ERR_FAIL_COND_V(p_line < 0 || p_line >= p_frame->lines.size(), text);
Line &l = p_frame->lines.write[p_line];
Item *it_to = (p_line + 1 < p_frame->lines.size()) ? p_frame->lines[p_line + 1].from : nullptr;
int end_idx = 0;
if (it_to != nullptr) {
end_idx = it_to->index;
} else {
for (Item *it = l.from; it && it != it_to; it = _get_next_item(it)) {
end_idx = it->index + 1;
}
}
for (Item *it = l.from; it && it != it_to; it = _get_next_item(it)) {
if (it->type == ITEM_TABLE) {
ItemTable *table = static_cast<ItemTable *>(it);
for (Item *E : table->subitems) {
ERR_CONTINUE(E->type != ITEM_FRAME); // Children should all be frames.
ItemFrame *frame = static_cast<ItemFrame *>(E);
for (int i = 0; i < frame->lines.size(); i++) {
text += _get_line_text(frame, i, p_selection);
}
}
}
if ((p_selection.to_item != nullptr) && (p_selection.to_item->index < l.from->index)) {
continue;
}
if ((p_selection.from_item != nullptr) && (p_selection.from_item->index >= end_idx)) {
continue;
}
if (it->type == ITEM_DROPCAP) {
const ItemDropcap *dc = static_cast<ItemDropcap *>(it);
text += dc->text;
} else if (it->type == ITEM_TEXT) {
const ItemText *t = static_cast<ItemText *>(it);
text += t->text;
} else if (it->type == ITEM_NEWLINE) {
text += "\n";
} else if (it->type == ITEM_IMAGE) {
text += " ";
}
}
if ((l.from != nullptr) && (p_frame == p_selection.to_frame) && (p_selection.to_item != nullptr) && (p_selection.to_item->index >= l.from->index) && (p_selection.to_item->index < end_idx)) {
text = text.substr(0, p_selection.to_char);
}
if ((l.from != nullptr) && (p_frame == p_selection.from_frame) && (p_selection.from_item != nullptr) && (p_selection.from_item->index >= l.from->index) && (p_selection.from_item->index < end_idx)) {
text = text.substr(p_selection.from_char, -1);
}
return text;
}
String RichTextLabel::get_selected_text() const {
if (!selection.active || !selection.enabled) {
return "";
}
String text;
for (int i = 0; i < main->lines.size(); i++) {
text += _get_line_text(main, i, selection);
}
return text;
}
void RichTextLabel::selection_copy() {
String text = get_selected_text();
if (!text.is_empty()) {
DisplayServer::get_singleton()->clipboard_set(text);
}
}
bool RichTextLabel::is_selection_enabled() const {
return selection.enabled;
}
bool RichTextLabel::is_deselect_on_focus_loss_enabled() const {
return deselect_on_focus_loss_enabled;
}
int RichTextLabel::get_selection_from() const {
if (!selection.active || !selection.enabled) {
return -1;
}
return selection.from_frame->lines[selection.from_line].char_offset + selection.from_char;
}
int RichTextLabel::get_selection_to() const {
if (!selection.active || !selection.enabled) {
return -1;
}
return selection.to_frame->lines[selection.to_line].char_offset + selection.to_char - 1;
}
void RichTextLabel::set_text(const String &p_bbcode) {
text = p_bbcode;
if (use_bbcode) {
parse_bbcode(p_bbcode);
} else { // raw text
clear();
add_text(p_bbcode);
}
}
String RichTextLabel::get_text() const {
return text;
}
void RichTextLabel::set_use_bbcode(bool p_enable) {
if (use_bbcode == p_enable) {
return;
}
use_bbcode = p_enable;
notify_property_list_changed();
set_text(text);
}
bool RichTextLabel::is_using_bbcode() const {
return use_bbcode;
}
String RichTextLabel::get_parsed_text() const {
String text = "";
Item *it = main;
while (it) {
if (it->type == ITEM_DROPCAP) {
const ItemDropcap *dc = (ItemDropcap *)it;
if (dc != nullptr) {
text += dc->text;
}
} else if (it->type == ITEM_TEXT) {
ItemText *t = static_cast<ItemText *>(it);
text += t->text;
} else if (it->type == ITEM_NEWLINE) {
text += "\n";
} else if (it->type == ITEM_IMAGE) {
text += " ";
} else if (it->type == ITEM_INDENT || it->type == ITEM_LIST) {
text += "\t";
}
it = _get_next_item(it, true);
}
return text;
}
void RichTextLabel::set_text_direction(Control::TextDirection p_text_direction) {
ERR_FAIL_COND((int)p_text_direction < -1 || (int)p_text_direction > 3);
if (text_direction != p_text_direction) {
text_direction = p_text_direction;
main->first_invalid_line = 0; //invalidate ALL
_validate_line_caches(main);
update();
}
}
void RichTextLabel::set_structured_text_bidi_override(Control::StructuredTextParser p_parser) {
if (st_parser != p_parser) {
st_parser = p_parser;
main->first_invalid_line = 0; //invalidate ALL
_validate_line_caches(main);
update();
}
}
Control::StructuredTextParser RichTextLabel::get_structured_text_bidi_override() const {
return st_parser;
}
void RichTextLabel::set_structured_text_bidi_override_options(Array p_args) {
st_args = p_args;
main->first_invalid_line = 0; //invalidate ALL
_validate_line_caches(main);
update();
}
Array RichTextLabel::get_structured_text_bidi_override_options() const {
return st_args;
}
Control::TextDirection RichTextLabel::get_text_direction() const {
return text_direction;
}
void RichTextLabel::set_language(const String &p_language) {
if (language != p_language) {
language = p_language;
main->first_invalid_line = 0; //invalidate ALL
_validate_line_caches(main);
update();
}
}
String RichTextLabel::get_language() const {
return language;
}
void RichTextLabel::set_autowrap_mode(RichTextLabel::AutowrapMode p_mode) {
if (autowrap_mode != p_mode) {
autowrap_mode = p_mode;
main->first_invalid_line = 0; //invalidate ALL
_validate_line_caches(main);
update();
}
}
RichTextLabel::AutowrapMode RichTextLabel::get_autowrap_mode() const {
return autowrap_mode;
}
void RichTextLabel::set_percent_visible(float p_percent) {
if (percent_visible != p_percent) {
if (p_percent < 0 || p_percent >= 1) {
visible_characters = -1;
percent_visible = 1;
} else {
visible_characters = get_total_character_count() * p_percent;
percent_visible = p_percent;
}
if (visible_chars_behavior == VC_CHARS_BEFORE_SHAPING) {
main->first_invalid_line = 0; //invalidate ALL
_validate_line_caches(main);
}
update();
}
}
float RichTextLabel::get_percent_visible() const {
return percent_visible;
}
void RichTextLabel::set_effects(Array p_effects) {
custom_effects = p_effects;
if ((!text.is_empty()) && use_bbcode) {
parse_bbcode(text);
}
}
Array RichTextLabel::get_effects() {
return custom_effects;
}
void RichTextLabel::install_effect(const Variant effect) {
Ref<RichTextEffect> rteffect;
rteffect = effect;
if (rteffect.is_valid()) {
custom_effects.push_back(effect);
if ((!text.is_empty()) && use_bbcode) {
parse_bbcode(text);
}
}
}
int RichTextLabel::get_content_height() const {
int total_height = 0;
if (main->lines.size()) {
total_height = main->lines[main->lines.size() - 1].offset.y + main->lines[main->lines.size() - 1].text_buf->get_size().y + main->lines[main->lines.size() - 1].text_buf->get_line_count() * get_theme_constant(SNAME("line_separation"));
}
return total_height;
}
int RichTextLabel::get_content_width() const {
int total_width = 0;
for (int i = 0; i < main->lines.size(); i++) {
total_width = MAX(total_width, main->lines[i].offset.x + main->lines[i].text_buf->get_size().x);
}
return total_width;
}
#ifndef DISABLE_DEPRECATED
// People will be very angry, if their texts get erased, because of #39148. (3.x -> 4.0)
// Although some people may not used bbcode_text, so we only overwrite, if bbcode_text is not empty.
bool RichTextLabel::_set(const StringName &p_name, const Variant &p_value) {
if (p_name == "bbcode_text" && !((String)p_value).is_empty()) {
set_text(p_value);
return true;
}
return false;
}
#endif
void RichTextLabel::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_parsed_text"), &RichTextLabel::get_parsed_text);
ClassDB::bind_method(D_METHOD("add_text", "text"), &RichTextLabel::add_text);
ClassDB::bind_method(D_METHOD("set_text", "text"), &RichTextLabel::set_text);
ClassDB::bind_method(D_METHOD("add_image", "image", "width", "height", "color", "inline_align"), &RichTextLabel::add_image, DEFVAL(0), DEFVAL(0), DEFVAL(Color(1.0, 1.0, 1.0)), DEFVAL(INLINE_ALIGNMENT_CENTER));
ClassDB::bind_method(D_METHOD("newline"), &RichTextLabel::add_newline);
ClassDB::bind_method(D_METHOD("remove_line", "line"), &RichTextLabel::remove_line);
ClassDB::bind_method(D_METHOD("push_font", "font"), &RichTextLabel::push_font);
ClassDB::bind_method(D_METHOD("push_font_size", "font_size"), &RichTextLabel::push_font_size);
ClassDB::bind_method(D_METHOD("push_font_features", "opentype_features"), &RichTextLabel::push_font_features);
ClassDB::bind_method(D_METHOD("push_normal"), &RichTextLabel::push_normal);
ClassDB::bind_method(D_METHOD("push_bold"), &RichTextLabel::push_bold);
ClassDB::bind_method(D_METHOD("push_bold_italics"), &RichTextLabel::push_bold_italics);
ClassDB::bind_method(D_METHOD("push_italics"), &RichTextLabel::push_italics);
ClassDB::bind_method(D_METHOD("push_mono"), &RichTextLabel::push_mono);
ClassDB::bind_method(D_METHOD("push_color", "color"), &RichTextLabel::push_color);
ClassDB::bind_method(D_METHOD("push_outline_size", "outline_size"), &RichTextLabel::push_outline_size);
ClassDB::bind_method(D_METHOD("push_outline_color", "color"), &RichTextLabel::push_outline_color);
ClassDB::bind_method(D_METHOD("push_paragraph", "alignment", "base_direction", "language", "st_parser"), &RichTextLabel::push_paragraph, DEFVAL(TextServer::DIRECTION_AUTO), DEFVAL(""), DEFVAL(STRUCTURED_TEXT_DEFAULT));
ClassDB::bind_method(D_METHOD("push_indent", "level"), &RichTextLabel::push_indent);
ClassDB::bind_method(D_METHOD("push_list", "level", "type", "capitalize"), &RichTextLabel::push_list);
ClassDB::bind_method(D_METHOD("push_meta", "data"), &RichTextLabel::push_meta);
ClassDB::bind_method(D_METHOD("push_underline"), &RichTextLabel::push_underline);
ClassDB::bind_method(D_METHOD("push_strikethrough"), &RichTextLabel::push_strikethrough);
ClassDB::bind_method(D_METHOD("push_table", "columns", "inline_align"), &RichTextLabel::push_table, DEFVAL(INLINE_ALIGNMENT_TOP));
ClassDB::bind_method(D_METHOD("push_dropcap", "string", "font", "size", "dropcap_margins", "color", "outline_size", "outline_color"), &RichTextLabel::push_dropcap, DEFVAL(Rect2()), DEFVAL(Color(1, 1, 1)), DEFVAL(0), DEFVAL(Color(0, 0, 0, 0)));
ClassDB::bind_method(D_METHOD("set_table_column_expand", "column", "expand", "ratio"), &RichTextLabel::set_table_column_expand);
ClassDB::bind_method(D_METHOD("set_cell_row_background_color", "odd_row_bg", "even_row_bg"), &RichTextLabel::set_cell_row_background_color);
ClassDB::bind_method(D_METHOD("set_cell_border_color", "color"), &RichTextLabel::set_cell_border_color);
ClassDB::bind_method(D_METHOD("set_cell_size_override", "min_size", "max_size"), &RichTextLabel::set_cell_size_override);
ClassDB::bind_method(D_METHOD("set_cell_padding", "padding"), &RichTextLabel::set_cell_padding);
ClassDB::bind_method(D_METHOD("push_cell"), &RichTextLabel::push_cell);
ClassDB::bind_method(D_METHOD("push_fgcolor", "fgcolor"), &RichTextLabel::push_fgcolor);
ClassDB::bind_method(D_METHOD("push_bgcolor", "bgcolor"), &RichTextLabel::push_bgcolor);
ClassDB::bind_method(D_METHOD("pop"), &RichTextLabel::pop);
ClassDB::bind_method(D_METHOD("clear"), &RichTextLabel::clear);
ClassDB::bind_method(D_METHOD("set_structured_text_bidi_override", "parser"), &RichTextLabel::set_structured_text_bidi_override);
ClassDB::bind_method(D_METHOD("get_structured_text_bidi_override"), &RichTextLabel::get_structured_text_bidi_override);
ClassDB::bind_method(D_METHOD("set_structured_text_bidi_override_options", "args"), &RichTextLabel::set_structured_text_bidi_override_options);
ClassDB::bind_method(D_METHOD("get_structured_text_bidi_override_options"), &RichTextLabel::get_structured_text_bidi_override_options);
ClassDB::bind_method(D_METHOD("set_text_direction", "direction"), &RichTextLabel::set_text_direction);
ClassDB::bind_method(D_METHOD("get_text_direction"), &RichTextLabel::get_text_direction);
ClassDB::bind_method(D_METHOD("set_language", "language"), &RichTextLabel::set_language);
ClassDB::bind_method(D_METHOD("get_language"), &RichTextLabel::get_language);
ClassDB::bind_method(D_METHOD("set_autowrap_mode", "autowrap_mode"), &RichTextLabel::set_autowrap_mode);
ClassDB::bind_method(D_METHOD("get_autowrap_mode"), &RichTextLabel::get_autowrap_mode);
ClassDB::bind_method(D_METHOD("set_meta_underline", "enable"), &RichTextLabel::set_meta_underline);
ClassDB::bind_method(D_METHOD("is_meta_underlined"), &RichTextLabel::is_meta_underlined);
ClassDB::bind_method(D_METHOD("set_override_selected_font_color", "override"), &RichTextLabel::set_override_selected_font_color);
ClassDB::bind_method(D_METHOD("is_overriding_selected_font_color"), &RichTextLabel::is_overriding_selected_font_color);
ClassDB::bind_method(D_METHOD("set_scroll_active", "active"), &RichTextLabel::set_scroll_active);
ClassDB::bind_method(D_METHOD("is_scroll_active"), &RichTextLabel::is_scroll_active);
ClassDB::bind_method(D_METHOD("set_scroll_follow", "follow"), &RichTextLabel::set_scroll_follow);
ClassDB::bind_method(D_METHOD("is_scroll_following"), &RichTextLabel::is_scroll_following);
ClassDB::bind_method(D_METHOD("get_v_scroll_bar"), &RichTextLabel::get_v_scroll_bar);
ClassDB::bind_method(D_METHOD("scroll_to_line", "line"), &RichTextLabel::scroll_to_line);
ClassDB::bind_method(D_METHOD("scroll_to_paragraph", "paragraph"), &RichTextLabel::scroll_to_paragraph);
ClassDB::bind_method(D_METHOD("set_tab_size", "spaces"), &RichTextLabel::set_tab_size);
ClassDB::bind_method(D_METHOD("get_tab_size"), &RichTextLabel::get_tab_size);
ClassDB::bind_method(D_METHOD("set_fit_content_height", "enabled"), &RichTextLabel::set_fit_content_height);
ClassDB::bind_method(D_METHOD("is_fit_content_height_enabled"), &RichTextLabel::is_fit_content_height_enabled);
ClassDB::bind_method(D_METHOD("set_selection_enabled", "enabled"), &RichTextLabel::set_selection_enabled);
ClassDB::bind_method(D_METHOD("is_selection_enabled"), &RichTextLabel::is_selection_enabled);
ClassDB::bind_method(D_METHOD("set_deselect_on_focus_loss_enabled", "enable"), &RichTextLabel::set_deselect_on_focus_loss_enabled);
ClassDB::bind_method(D_METHOD("is_deselect_on_focus_loss_enabled"), &RichTextLabel::is_deselect_on_focus_loss_enabled);
ClassDB::bind_method(D_METHOD("get_selection_from"), &RichTextLabel::get_selection_from);
ClassDB::bind_method(D_METHOD("get_selection_to"), &RichTextLabel::get_selection_to);
ClassDB::bind_method(D_METHOD("get_selected_text"), &RichTextLabel::get_selected_text);
ClassDB::bind_method(D_METHOD("parse_bbcode", "bbcode"), &RichTextLabel::parse_bbcode);
ClassDB::bind_method(D_METHOD("append_text", "bbcode"), &RichTextLabel::append_text);
ClassDB::bind_method(D_METHOD("get_text"), &RichTextLabel::get_text);
ClassDB::bind_method(D_METHOD("set_visible_characters", "amount"), &RichTextLabel::set_visible_characters);
ClassDB::bind_method(D_METHOD("get_visible_characters"), &RichTextLabel::get_visible_characters);
ClassDB::bind_method(D_METHOD("get_visible_characters_behavior"), &RichTextLabel::get_visible_characters_behavior);
ClassDB::bind_method(D_METHOD("set_visible_characters_behavior", "behavior"), &RichTextLabel::set_visible_characters_behavior);
ClassDB::bind_method(D_METHOD("set_percent_visible", "percent_visible"), &RichTextLabel::set_percent_visible);
ClassDB::bind_method(D_METHOD("get_percent_visible"), &RichTextLabel::get_percent_visible);
ClassDB::bind_method(D_METHOD("get_character_line", "character"), &RichTextLabel::get_character_line);
ClassDB::bind_method(D_METHOD("get_character_paragraph", "character"), &RichTextLabel::get_character_paragraph);
ClassDB::bind_method(D_METHOD("get_total_character_count"), &RichTextLabel::get_total_character_count);
ClassDB::bind_method(D_METHOD("set_use_bbcode", "enable"), &RichTextLabel::set_use_bbcode);
ClassDB::bind_method(D_METHOD("is_using_bbcode"), &RichTextLabel::is_using_bbcode);
ClassDB::bind_method(D_METHOD("get_line_count"), &RichTextLabel::get_line_count);
ClassDB::bind_method(D_METHOD("get_visible_line_count"), &RichTextLabel::get_visible_line_count);
ClassDB::bind_method(D_METHOD("get_paragraph_count"), &RichTextLabel::get_paragraph_count);
ClassDB::bind_method(D_METHOD("get_visible_paragraph_count"), &RichTextLabel::get_visible_paragraph_count);
ClassDB::bind_method(D_METHOD("get_content_height"), &RichTextLabel::get_content_height);
ClassDB::bind_method(D_METHOD("get_content_width"), &RichTextLabel::get_content_width);
ClassDB::bind_method(D_METHOD("get_line_offset", "line"), &RichTextLabel::get_line_offset);
ClassDB::bind_method(D_METHOD("get_paragraph_offset", "paragraph"), &RichTextLabel::get_paragraph_offset);
ClassDB::bind_method(D_METHOD("parse_expressions_for_values", "expressions"), &RichTextLabel::parse_expressions_for_values);
ClassDB::bind_method(D_METHOD("set_effects", "effects"), &RichTextLabel::set_effects);
ClassDB::bind_method(D_METHOD("get_effects"), &RichTextLabel::get_effects);
ClassDB::bind_method(D_METHOD("install_effect", "effect"), &RichTextLabel::install_effect);
// Note: set "bbcode_enabled" first, to avoid unnecessery "text" resets.
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "bbcode_enabled"), "set_use_bbcode", "is_using_bbcode");
ADD_PROPERTY(PropertyInfo(Variant::INT, "tab_size", PROPERTY_HINT_RANGE, "0,24,1"), "set_tab_size", "get_tab_size");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "text", PROPERTY_HINT_MULTILINE_TEXT), "set_text", "get_text");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "fit_content_height"), "set_fit_content_height", "is_fit_content_height_enabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scroll_active"), "set_scroll_active", "is_scroll_active");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scroll_following"), "set_scroll_follow", "is_scroll_following");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "selection_enabled"), "set_selection_enabled", "is_selection_enabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "override_selected_font_color"), "set_override_selected_font_color", "is_overriding_selected_font_color");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "deselect_on_focus_loss_enabled"), "set_deselect_on_focus_loss_enabled", "is_deselect_on_focus_loss_enabled");
ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "custom_effects", PROPERTY_HINT_ARRAY_TYPE, vformat("%s/%s:%s", Variant::OBJECT, PROPERTY_HINT_RESOURCE_TYPE, "RichTextEffect"), (PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_SCRIPT_VARIABLE)), "set_effects", "get_effects");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "meta_underlined"), "set_meta_underline", "is_meta_underlined");
ADD_PROPERTY(PropertyInfo(Variant::INT, "autowrap_mode", PROPERTY_HINT_ENUM, "Off,Arbitrary,Word,Word (Smart)"), "set_autowrap_mode", "get_autowrap_mode");
// Note: "visible_characters" and "percent_visible" should be set after "text" to be correctly applied.
ADD_PROPERTY(PropertyInfo(Variant::INT, "visible_characters", PROPERTY_HINT_RANGE, "-1,128000,1"), "set_visible_characters", "get_visible_characters");
ADD_PROPERTY(PropertyInfo(Variant::INT, "visible_characters_behavior", PROPERTY_HINT_ENUM, "Characters Before Shaping,Characters After Shaping,Glyphs (Layout Direction),Glyphs (Left-to-Right),Glyphs (Right-to-Left)"), "set_visible_characters_behavior", "get_visible_characters_behavior");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "percent_visible", PROPERTY_HINT_RANGE, "0,1,0.001"), "set_percent_visible", "get_percent_visible");
ADD_GROUP("Locale", "");
ADD_PROPERTY(PropertyInfo(Variant::INT, "text_direction", PROPERTY_HINT_ENUM, "Auto,Left-to-Right,Right-to-Left,Inherited"), "set_text_direction", "get_text_direction");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "language", PROPERTY_HINT_LOCALE_ID, ""), "set_language", "get_language");
ADD_GROUP("Structured Text", "structured_text_");
ADD_PROPERTY(PropertyInfo(Variant::INT, "structured_text_bidi_override", PROPERTY_HINT_ENUM, "Default,URI,File,Email,List,None,Custom"), "set_structured_text_bidi_override", "get_structured_text_bidi_override");
ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "structured_text_bidi_override_options"), "set_structured_text_bidi_override_options", "get_structured_text_bidi_override_options");
ADD_SIGNAL(MethodInfo("meta_clicked", PropertyInfo(Variant::NIL, "meta", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NIL_IS_VARIANT)));
ADD_SIGNAL(MethodInfo("meta_hover_started", PropertyInfo(Variant::NIL, "meta", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NIL_IS_VARIANT)));
ADD_SIGNAL(MethodInfo("meta_hover_ended", PropertyInfo(Variant::NIL, "meta", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NIL_IS_VARIANT)));
BIND_ENUM_CONSTANT(AUTOWRAP_OFF);
BIND_ENUM_CONSTANT(AUTOWRAP_ARBITRARY);
BIND_ENUM_CONSTANT(AUTOWRAP_WORD);
BIND_ENUM_CONSTANT(AUTOWRAP_WORD_SMART);
BIND_ENUM_CONSTANT(LIST_NUMBERS);
BIND_ENUM_CONSTANT(LIST_LETTERS);
BIND_ENUM_CONSTANT(LIST_ROMAN);
BIND_ENUM_CONSTANT(LIST_DOTS);
BIND_ENUM_CONSTANT(ITEM_FRAME);
BIND_ENUM_CONSTANT(ITEM_TEXT);
BIND_ENUM_CONSTANT(ITEM_IMAGE);
BIND_ENUM_CONSTANT(ITEM_NEWLINE);
BIND_ENUM_CONSTANT(ITEM_FONT);
BIND_ENUM_CONSTANT(ITEM_FONT_SIZE);
BIND_ENUM_CONSTANT(ITEM_FONT_FEATURES);
BIND_ENUM_CONSTANT(ITEM_COLOR);
BIND_ENUM_CONSTANT(ITEM_OUTLINE_SIZE);
BIND_ENUM_CONSTANT(ITEM_OUTLINE_COLOR);
BIND_ENUM_CONSTANT(ITEM_UNDERLINE);
BIND_ENUM_CONSTANT(ITEM_STRIKETHROUGH);
BIND_ENUM_CONSTANT(ITEM_PARAGRAPH);
BIND_ENUM_CONSTANT(ITEM_INDENT);
BIND_ENUM_CONSTANT(ITEM_LIST);
BIND_ENUM_CONSTANT(ITEM_TABLE);
BIND_ENUM_CONSTANT(ITEM_FADE);
BIND_ENUM_CONSTANT(ITEM_SHAKE);
BIND_ENUM_CONSTANT(ITEM_WAVE);
BIND_ENUM_CONSTANT(ITEM_TORNADO);
BIND_ENUM_CONSTANT(ITEM_RAINBOW);
BIND_ENUM_CONSTANT(ITEM_BGCOLOR);
BIND_ENUM_CONSTANT(ITEM_FGCOLOR);
BIND_ENUM_CONSTANT(ITEM_META);
BIND_ENUM_CONSTANT(ITEM_DROPCAP);
BIND_ENUM_CONSTANT(ITEM_CUSTOMFX);
BIND_ENUM_CONSTANT(VC_CHARS_BEFORE_SHAPING);
BIND_ENUM_CONSTANT(VC_CHARS_AFTER_SHAPING);
BIND_ENUM_CONSTANT(VC_GLYPHS_AUTO);
BIND_ENUM_CONSTANT(VC_GLYPHS_LTR);
BIND_ENUM_CONSTANT(VC_GLYPHS_RTL);
}
RichTextLabel::VisibleCharactersBehavior RichTextLabel::get_visible_characters_behavior() const {
return visible_chars_behavior;
}
void RichTextLabel::set_visible_characters_behavior(RichTextLabel::VisibleCharactersBehavior p_behavior) {
if (visible_chars_behavior != p_behavior) {
visible_chars_behavior = p_behavior;
main->first_invalid_line = 0; //invalidate ALL
_validate_line_caches(main);
update();
}
}
void RichTextLabel::set_visible_characters(int p_visible) {
if (visible_characters != p_visible) {
visible_characters = p_visible;
if (p_visible == -1) {
percent_visible = 1;
} else {
int total_char_count = get_total_character_count();
if (total_char_count > 0) {
percent_visible = (float)p_visible / (float)total_char_count;
}
}
if (visible_chars_behavior == VC_CHARS_BEFORE_SHAPING) {
main->first_invalid_line = 0; //invalidate ALL
_validate_line_caches(main);
}
update();
}
}
int RichTextLabel::get_visible_characters() const {
return visible_characters;
}
int RichTextLabel::get_character_line(int p_char) {
int line_count = 0;
for (int i = 0; i < main->lines.size(); i++) {
if (main->lines[i].char_offset < p_char && p_char <= main->lines[i].char_offset + main->lines[i].char_count) {
for (int j = 0; j < main->lines[i].text_buf->get_line_count(); j++) {
Vector2i range = main->lines[i].text_buf->get_line_range(j);
if (main->lines[i].char_offset + range.x < p_char && p_char <= main->lines[i].char_offset + range.y) {
return line_count;
}
line_count++;
}
} else {
line_count += main->lines[i].text_buf->get_line_count();
}
}
return -1;
}
int RichTextLabel::get_character_paragraph(int p_char) {
int para_count = 0;
for (int i = 0; i < main->lines.size(); i++) {
if (main->lines[i].char_offset < p_char && p_char <= main->lines[i].char_offset + main->lines[i].char_count) {
return para_count;
} else {
para_count++;
}
}
return -1;
}
int RichTextLabel::get_total_character_count() const {
// Note: Do not use line buffer "char_count", it includes only visible characters.
int tc = 0;
Item *it = main;
while (it) {
if (it->type == ITEM_TEXT) {
ItemText *t = static_cast<ItemText *>(it);
tc += t->text.length();
} else if (it->type == ITEM_NEWLINE) {
tc++;
} else if (it->type == ITEM_IMAGE) {
tc++;
}
it = _get_next_item(it, true);
}
return tc;
}
int RichTextLabel::get_total_glyph_count() const {
int tg = 0;
Item *it = main;
while (it) {
if (it->type == ITEM_FRAME) {
ItemFrame *f = static_cast<ItemFrame *>(it);
for (int i = 0; i < f->lines.size(); i++) {
tg += TS->shaped_text_get_glyph_count(f->lines[i].text_buf->get_rid());
}
}
it = _get_next_item(it, true);
}
return tg;
}
void RichTextLabel::set_fixed_size_to_width(int p_width) {
fixed_width = p_width;
update_minimum_size();
}
Size2 RichTextLabel::get_minimum_size() const {
Ref<StyleBox> style = get_theme_stylebox(SNAME("normal"));
Size2 size = style->get_minimum_size();
if (fixed_width != -1) {
size.x += fixed_width;
}
if (fit_content_height) {
const_cast<RichTextLabel *>(this)->_validate_line_caches(main);
size.y += get_content_height();
}
return size;
}
void RichTextLabel::_draw_fbg_boxes(RID p_ci, RID p_rid, Vector2 line_off, Item *it_from, Item *it_to, int start, int end, int fbg_flag) {
Vector2i fbg_index = Vector2i(end, start);
Color last_color = Color(0, 0, 0, 0);
bool draw_box = false;
// Draw a box based on color tags associated with glyphs
for (int i = start; i < end; i++) {
Item *it = _get_item_at_pos(it_from, it_to, i);
Color color = Color(0, 0, 0, 0);
if (fbg_flag == 0) {
color = _find_bgcolor(it);
} else {
color = _find_fgcolor(it);
}
bool change_to_color = ((color.a > 0) && ((last_color.a - 0.0) < 0.01));
bool change_from_color = (((color.a - 0.0) < 0.01) && (last_color.a > 0.0));
bool change_color = (((color.a > 0) == (last_color.a > 0)) && (color != last_color));
if (change_to_color) {
fbg_index.x = MIN(i, fbg_index.x);
fbg_index.y = MAX(i, fbg_index.y);
}
if (change_from_color || change_color) {
fbg_index.x = MIN(i, fbg_index.x);
fbg_index.y = MAX(i, fbg_index.y);
draw_box = true;
}
if (draw_box) {
Vector<Vector2> sel = TS->shaped_text_get_selection(p_rid, fbg_index.x, fbg_index.y);
for (int j = 0; j < sel.size(); j++) {
Vector2 rect_off = line_off + Vector2(sel[j].x, -TS->shaped_text_get_ascent(p_rid));
Vector2 rect_size = Vector2(sel[j].y - sel[j].x, TS->shaped_text_get_size(p_rid).y);
RenderingServer::get_singleton()->canvas_item_add_rect(p_ci, Rect2(rect_off, rect_size), last_color);
}
fbg_index = Vector2i(end, start);
draw_box = false;
}
if (change_color) {
fbg_index.x = MIN(i, fbg_index.x);
fbg_index.y = MAX(i, fbg_index.y);
}
last_color = color;
}
if (last_color.a > 0) {
Vector<Vector2> sel = TS->shaped_text_get_selection(p_rid, fbg_index.x, end);
for (int i = 0; i < sel.size(); i++) {
Vector2 rect_off = line_off + Vector2(sel[i].x, -TS->shaped_text_get_ascent(p_rid));
Vector2 rect_size = Vector2(sel[i].y - sel[i].x, TS->shaped_text_get_size(p_rid).y);
RenderingServer::get_singleton()->canvas_item_add_rect(p_ci, Rect2(rect_off, rect_size), last_color);
}
}
}
Ref<RichTextEffect> RichTextLabel::_get_custom_effect_by_code(String p_bbcode_identifier) {
for (int i = 0; i < custom_effects.size(); i++) {
Ref<RichTextEffect> effect = custom_effects[i];
if (!effect.is_valid()) {
continue;
}
if (effect->get_bbcode() == p_bbcode_identifier) {
return effect;
}
}
return Ref<RichTextEffect>();
}
Dictionary RichTextLabel::parse_expressions_for_values(Vector<String> p_expressions) {
Dictionary d = Dictionary();
for (int i = 0; i < p_expressions.size(); i++) {
String expression = p_expressions[i];
Array a = Array();
Vector<String> parts = expression.split("=", true);
String key = parts[0];
if (parts.size() != 2) {
return d;
}
Vector<String> values = parts[1].split(",", false);
#ifdef MODULE_REGEX_ENABLED
RegEx color = RegEx();
color.compile("^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$");
RegEx nodepath = RegEx();
nodepath.compile("^\\$");
RegEx boolean = RegEx();
boolean.compile("^(true|false)$");
RegEx decimal = RegEx();
decimal.compile("^-?^.?\\d+(\\.\\d+?)?$");
RegEx numerical = RegEx();
numerical.compile("^\\d+$");
for (int j = 0; j < values.size(); j++) {
if (!color.search(values[j]).is_null()) {
a.append(Color::html(values[j]));
} else if (!nodepath.search(values[j]).is_null()) {
if (values[j].begins_with("$")) {
String v = values[j].substr(1, values[j].length());
a.append(NodePath(v));
}
} else if (!boolean.search(values[j]).is_null()) {
if (values[j] == "true") {
a.append(true);
} else if (values[j] == "false") {
a.append(false);
}
} else if (!decimal.search(values[j]).is_null()) {
a.append(values[j].to_float());
} else if (!numerical.search(values[j]).is_null()) {
a.append(values[j].to_int());
} else {
a.append(values[j]);
}
}
#endif
if (values.size() > 1) {
d[key] = a;
} else if (values.size() == 1) {
d[key] = a[0];
}
}
return d;
}
RichTextLabel::RichTextLabel(const String &p_text) {
main = memnew(ItemFrame);
main->index = 0;
current = main;
main->lines.resize(1);
main->lines.write[0].from = main;
main->first_invalid_line = 0;
main->first_resized_line = 0;
main->first_invalid_font_line = 0;
current_frame = main;
vscroll = memnew(VScrollBar);
add_child(vscroll, false, INTERNAL_MODE_FRONT);
vscroll->set_drag_node(String(".."));
vscroll->set_step(1);
vscroll->set_anchor_and_offset(SIDE_TOP, ANCHOR_BEGIN, 0);
vscroll->set_anchor_and_offset(SIDE_BOTTOM, ANCHOR_END, 0);
vscroll->set_anchor_and_offset(SIDE_RIGHT, ANCHOR_END, 0);
vscroll->connect("value_changed", callable_mp(this, &RichTextLabel::_scroll_changed));
vscroll->set_step(1);
vscroll->hide();
set_text(p_text);
set_clip_contents(true);
}
RichTextLabel::~RichTextLabel() {
memdelete(main);
}
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