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virtualx-engine/scene/gui/rich_text_label.cpp
Eoin O'Neill 0dedc0a1a3 Fix RichTextEffect visibility to Account for Skipped Characters. 
A picture is easier to describe this issue than words. Basically, rich
text effects allowed for character visibility changes. While doing so
would work properly, the rich text label would render the next `word` in
an offset accounting for the hidden characters (leaving a huge space.)

This patch fixes this issue by keeping track of the amount of
`backtrack` necessary per line.

(cherry picked from commit b3fd4884d7)
2020-02-14 15:57:47 +01:00

2969 lines
90 KiB
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/*************************************************************************/
/* rich_text_label.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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 "modules/regex/regex.h"
#include "scene/scene_string_names.h"
#ifdef TOOLS_ENABLED
#include "editor/editor_scale.h"
#endif
RichTextLabel::Item *RichTextLabel::_get_next_item(Item *p_item, bool p_free) {
if (p_free) {
if (p_item->subitems.size()) {
return p_item->subitems.front()->get();
} else if (!p_item->parent) {
return NULL;
} 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 NULL;
}
} 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 NULL;
} 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 NULL;
}
}
return NULL;
}
RichTextLabel::Item *RichTextLabel::_get_prev_item(Item *p_item, bool p_free) {
if (p_free) {
if (p_item->subitems.size()) {
return p_item->subitems.back()->get();
} else if (!p_item->parent) {
return NULL;
} 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 NULL;
}
} 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 NULL;
} 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 NULL;
}
}
return NULL;
}
Rect2 RichTextLabel::_get_text_rect() {
Ref<StyleBox> style = get_stylebox("normal");
return Rect2(style->get_offset(), get_size() - style->get_minimum_size());
}
int RichTextLabel::_process_line(ItemFrame *p_frame, const Vector2 &p_ofs, int &y, int p_width, int p_line, ProcessMode p_mode, const Ref<Font> &p_base_font, const Color &p_base_color, const Color &p_font_color_shadow, bool p_shadow_as_outline, const Point2 &shadow_ofs, const Point2i &p_click_pos, Item **r_click_item, int *r_click_char, bool *r_outside, int p_char_count) {
ERR_FAIL_INDEX_V((int)p_mode, 3, 0);
RID ci;
if (r_outside)
*r_outside = false;
if (p_mode == PROCESS_DRAW) {
ci = get_canvas_item();
if (r_click_item)
*r_click_item = NULL;
}
Line &l = p_frame->lines.write[p_line];
Item *it = l.from;
int line_ofs = 0;
int margin = _find_margin(it, p_base_font);
Align align = _find_align(it);
int line = 0;
int spaces = 0;
int height = get_size().y;
if (p_mode != PROCESS_CACHE) {
ERR_FAIL_INDEX_V(line, l.offset_caches.size(), 0);
line_ofs = l.offset_caches[line];
}
if (p_mode == PROCESS_CACHE) {
l.offset_caches.clear();
l.height_caches.clear();
l.ascent_caches.clear();
l.descent_caches.clear();
l.char_count = 0;
l.minimum_width = 0;
l.maximum_width = 0;
}
int wofs = margin;
int spaces_size = 0;
int align_ofs = 0;
if (p_mode != PROCESS_CACHE && align != ALIGN_FILL)
wofs += line_ofs;
int begin = wofs;
Ref<Font> cfont = _find_font(it);
if (cfont.is_null())
cfont = p_base_font;
//line height should be the font height for the first time, this ensures that an empty line will never have zero height and successive newlines are displayed
int line_height = cfont->get_height();
int line_ascent = cfont->get_ascent();
int line_descent = cfont->get_descent();
int backtrack = 0; // for dynamic hidden content.
int nonblank_line_count = 0; //number of nonblank lines as counted during PROCESS_DRAW
Variant meta;
#define RETURN return nonblank_line_count
#define NEW_LINE \
{ \
if (p_mode != PROCESS_CACHE) { \
line++; \
backtrack = 0; \
if (!line_is_blank) { \
nonblank_line_count++; \
} \
line_is_blank = true; \
if (line < l.offset_caches.size()) \
line_ofs = l.offset_caches[line]; \
wofs = margin; \
if (align != ALIGN_FILL) \
wofs += line_ofs; \
} else { \
int used = wofs - margin; \
switch (align) { \
case ALIGN_LEFT: l.offset_caches.push_back(0); break; \
case ALIGN_CENTER: l.offset_caches.push_back(((p_width - margin) - used) / 2); break; \
case ALIGN_RIGHT: l.offset_caches.push_back(((p_width - margin) - used)); break; \
case ALIGN_FILL: l.offset_caches.push_back(line_wrapped ? ((p_width - margin) - used) : 0); break; \
} \
l.height_caches.push_back(line_height); \
l.ascent_caches.push_back(line_ascent); \
l.descent_caches.push_back(line_descent); \
l.space_caches.push_back(spaces); \
} \
line_wrapped = false; \
y += line_height + get_constant(SceneStringNames::get_singleton()->line_separation); \
line_height = 0; \
line_ascent = 0; \
line_descent = 0; \
spaces = 0; \
spaces_size = 0; \
wofs = begin; \
align_ofs = 0; \
if (p_mode != PROCESS_CACHE) { \
lh = line < l.height_caches.size() ? l.height_caches[line] : 1; \
line_ascent = line < l.ascent_caches.size() ? l.ascent_caches[line] : 1; \
line_descent = line < l.descent_caches.size() ? l.descent_caches[line] : 1; \
} \
if (p_mode == PROCESS_POINTER && r_click_item && p_click_pos.y >= p_ofs.y + y && p_click_pos.y <= p_ofs.y + y + lh && p_click_pos.x < p_ofs.x + wofs) { \
if (r_outside) *r_outside = true; \
*r_click_item = it; \
*r_click_char = rchar; \
RETURN; \
} \
}
#define ENSURE_WIDTH(m_width) \
if (p_mode == PROCESS_CACHE) { \
l.maximum_width = MAX(l.maximum_width, MIN(p_width, wofs + m_width)); \
l.minimum_width = MAX(l.minimum_width, m_width); \
} \
if (wofs - backtrack + m_width > p_width) { \
line_wrapped = true; \
if (p_mode == PROCESS_CACHE) { \
if (spaces > 0) \
spaces -= 1; \
} \
const bool x_in_range = (p_click_pos.x > p_ofs.x + wofs) && (!p_frame->cell || p_click_pos.x < p_ofs.x + p_width); \
if (p_mode == PROCESS_POINTER && r_click_item && p_click_pos.y >= p_ofs.y + y && p_click_pos.y <= p_ofs.y + y + lh && x_in_range) { \
if (r_outside) *r_outside = true; \
*r_click_item = it; \
*r_click_char = rchar; \
RETURN; \
} \
NEW_LINE \
}
#define ADVANCE(m_width) \
{ \
if (p_mode == PROCESS_POINTER && r_click_item && p_click_pos.y >= p_ofs.y + y && p_click_pos.y <= p_ofs.y + y + lh && p_click_pos.x >= p_ofs.x + wofs && p_click_pos.x < p_ofs.x + wofs + m_width) { \
if (r_outside) *r_outside = false; \
*r_click_item = it; \
*r_click_char = rchar; \
RETURN; \
} \
wofs += m_width; \
}
#define CHECK_HEIGHT(m_height) \
if (m_height > line_height) { \
line_height = m_height; \
}
#define YRANGE_VISIBLE(m_top, m_height) \
(m_height > 0 && ((m_top >= 0 && m_top < height) || ((m_top + m_height - 1) >= 0 && (m_top + m_height - 1) < height)))
Color selection_fg;
Color selection_bg;
if (p_mode == PROCESS_DRAW) {
selection_fg = get_color("font_color_selected");
selection_bg = get_color("selection_color");
}
int rchar = 0;
int lh = 0;
bool line_is_blank = true;
bool line_wrapped = false;
int fh = 0;
while (it) {
switch (it->type) {
case ITEM_ALIGN: {
ItemAlign *align_it = static_cast<ItemAlign *>(it);
align = align_it->align;
} break;
case ITEM_INDENT: {
if (it != l.from) {
ItemIndent *indent_it = static_cast<ItemIndent *>(it);
int indent = indent_it->level * tab_size * cfont->get_char_size(' ').width;
margin += indent;
begin += indent;
wofs += indent;
}
} break;
case ITEM_TEXT: {
ItemText *text = static_cast<ItemText *>(it);
Ref<Font> font = _find_font(it);
if (font.is_null())
font = p_base_font;
const CharType *c = text->text.c_str();
const CharType *cf = c;
int ascent = font->get_ascent();
int descent = font->get_descent();
Color color;
Color font_color_shadow;
bool underline = false;
bool strikethrough = false;
ItemFade *fade = NULL;
int it_char_start = p_char_count;
Vector<ItemFX *> fx_stack = Vector<ItemFX *>();
_fetch_item_fx_stack(text, fx_stack);
bool custom_fx_ok = true;
if (p_mode == PROCESS_DRAW) {
color = _find_color(text, p_base_color);
font_color_shadow = _find_color(text, p_font_color_shadow);
if (_find_underline(text) || (_find_meta(text, &meta) && underline_meta)) {
underline = true;
} else if (_find_strikethrough(text)) {
strikethrough = true;
}
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;
}
} else if (p_mode == PROCESS_CACHE) {
l.char_count += text->text.length();
}
rchar = 0;
FontDrawer drawer(font, Color(1, 1, 1));
while (*c) {
int end = 0;
int w = 0;
int fw = 0;
lh = 0;
if (p_mode != PROCESS_CACHE) {
lh = line < l.height_caches.size() ? l.height_caches[line] : 1;
line_ascent = line < l.ascent_caches.size() ? l.ascent_caches[line] : 1;
line_descent = line < l.descent_caches.size() ? l.descent_caches[line] : 1;
}
while (c[end] != 0 && !(end && c[end - 1] == ' ' && c[end] != ' ')) {
int cw = font->get_char_size(c[end], c[end + 1]).width;
if (c[end] == '\t') {
cw = tab_size * font->get_char_size(' ').width;
}
if (end > 0 && w + cw + begin > p_width) {
break; //don't allow lines longer than assigned width
}
w += cw;
fw += cw;
end++;
}
CHECK_HEIGHT(fh);
ENSURE_WIDTH(w);
line_ascent = MAX(line_ascent, ascent);
line_descent = MAX(line_descent, descent);
fh = line_ascent + line_descent;
if (end && c[end - 1] == ' ') {
if (p_mode == PROCESS_CACHE) {
spaces_size += font->get_char_size(' ').width;
} else if (align == ALIGN_FILL) {
int ln = MIN(l.offset_caches.size() - 1, line);
if (l.space_caches[ln]) {
align_ofs = spaces * l.offset_caches[ln] / l.space_caches[ln];
}
}
spaces++;
}
{
int ofs = 0 - backtrack;
for (int i = 0; i < end; i++) {
int pofs = wofs + ofs;
if (p_mode == PROCESS_POINTER && r_click_char && p_click_pos.y >= p_ofs.y + y && p_click_pos.y <= p_ofs.y + y + lh) {
int cw = font->get_char_size(c[i], c[i + 1]).x;
if (c[i] == '\t') {
cw = tab_size * font->get_char_size(' ').width;
}
if (p_click_pos.x - cw / 2 > p_ofs.x + align_ofs + pofs) {
rchar = int((&c[i]) - cf);
}
ofs += cw;
} else if (p_mode == PROCESS_DRAW) {
bool selected = false;
Color fx_color = Color(color);
Point2 fx_offset;
CharType fx_char = c[i];
if (selection.active) {
int cofs = (&c[i]) - cf;
if ((text->index > selection.from->index || (text->index == selection.from->index && cofs >= selection.from_char)) && (text->index < selection.to->index || (text->index == selection.to->index && cofs <= selection.to_char))) {
selected = true;
}
}
int cw = 0;
int c_item_offset = p_char_count - it_char_start;
float faded_visibility = 1.0f;
if (fade) {
if (c_item_offset >= fade->starting_index) {
faded_visibility -= (float)(c_item_offset - fade->starting_index) / (float)fade->length;
faded_visibility = faded_visibility < 0.0f ? 0.0f : faded_visibility;
}
fx_color.a = faded_visibility;
}
bool visible = visible_characters < 0 || ((p_char_count < visible_characters && YRANGE_VISIBLE(y + lh - line_descent - line_ascent, line_ascent + line_descent)) &&
faded_visibility > 0.0f);
const bool previously_visible = visible;
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->relative_index = c_item_offset;
charfx->absolute_index = p_char_count;
charfx->visibility = visible;
charfx->offset = fx_offset;
charfx->color = fx_color;
charfx->character = fx_char;
bool effect_status = custom_effect->_process_effect_impl(charfx);
custom_fx_ok = effect_status;
fx_offset += charfx->offset;
fx_color = charfx->color;
visible &= charfx->visibility;
fx_char = charfx->character;
}
} else if (item_fx->type == ITEM_SHAKE) {
ItemShake *item_shake = static_cast<ItemShake *>(item_fx);
uint64_t char_current_rand = item_shake->offset_random(c_item_offset);
uint64_t char_previous_rand = item_shake->offset_previous_random(c_item_offset);
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;
fx_offset += 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;
} else if (item_fx->type == ITEM_WAVE) {
ItemWave *item_wave = static_cast<ItemWave *>(item_fx);
double value = Math::sin(item_wave->frequency * item_wave->elapsed_time + ((p_ofs.x + pofs) / 50)) * (item_wave->amplitude / 10.0f);
fx_offset += Point2(0, 1) * value;
} else if (item_fx->type == ITEM_TORNADO) {
ItemTornado *item_tornado = static_cast<ItemTornado *>(item_fx);
double torn_x = Math::sin(item_tornado->frequency * item_tornado->elapsed_time + ((p_ofs.x + pofs) / 50)) * (item_tornado->radius);
double torn_y = Math::cos(item_tornado->frequency * item_tornado->elapsed_time + ((p_ofs.x + pofs) / 50)) * (item_tornado->radius);
fx_offset += Point2(torn_x, torn_y);
} else if (item_fx->type == ITEM_RAINBOW) {
ItemRainbow *item_rainbow = static_cast<ItemRainbow *>(item_fx);
fx_color = fx_color.from_hsv(item_rainbow->frequency * (item_rainbow->elapsed_time + ((p_ofs.x + pofs) / 50)),
item_rainbow->saturation,
item_rainbow->value,
fx_color.a);
}
}
if (visible)
line_is_blank = false;
if (c[i] == '\t')
visible = false;
if (visible) {
if (selected) {
cw = font->get_char_size(fx_char, c[i + 1]).x;
draw_rect(Rect2(p_ofs.x + pofs, p_ofs.y + y, cw, lh), selection_bg);
}
if (p_font_color_shadow.a > 0) {
float x_ofs_shadow = align_ofs + pofs;
float y_ofs_shadow = y + lh - line_descent;
font->draw_char(ci, Point2(x_ofs_shadow, y_ofs_shadow) + shadow_ofs + fx_offset, fx_char, c[i + 1], p_font_color_shadow);
if (p_shadow_as_outline) {
font->draw_char(ci, Point2(x_ofs_shadow, y_ofs_shadow) + Vector2(-shadow_ofs.x, shadow_ofs.y) + fx_offset, fx_char, c[i + 1], p_font_color_shadow);
font->draw_char(ci, Point2(x_ofs_shadow, y_ofs_shadow) + Vector2(shadow_ofs.x, -shadow_ofs.y) + fx_offset, fx_char, c[i + 1], p_font_color_shadow);
font->draw_char(ci, Point2(x_ofs_shadow, y_ofs_shadow) + Vector2(-shadow_ofs.x, -shadow_ofs.y) + fx_offset, fx_char, c[i + 1], p_font_color_shadow);
}
}
if (selected) {
drawer.draw_char(ci, p_ofs + Point2(align_ofs + pofs, y + lh - line_descent), fx_char, c[i + 1], override_selected_font_color ? selection_fg : fx_color);
} else {
cw = drawer.draw_char(ci, p_ofs + Point2(align_ofs + pofs, y + lh - line_descent) + fx_offset, fx_char, c[i + 1], fx_color);
}
} else if (previously_visible) {
backtrack += font->get_char_size(fx_char, c[i + 1]).x;
}
p_char_count++;
if (c[i] == '\t') {
cw = tab_size * font->get_char_size(' ').width;
}
ofs += cw;
}
}
if (underline) {
Color uc = color;
uc.a *= 0.5;
int uy = y + lh - line_descent + 2;
float underline_width = 1.0;
#ifdef TOOLS_ENABLED
underline_width *= EDSCALE;
#endif
VS::get_singleton()->canvas_item_add_line(ci, p_ofs + Point2(align_ofs + wofs, uy), p_ofs + Point2(align_ofs + wofs + w, uy), uc, underline_width);
} else if (strikethrough) {
Color uc = color;
uc.a *= 0.5;
int uy = y + lh / 2 - line_descent + 2;
float strikethrough_width = 1.0;
#ifdef TOOLS_ENABLED
strikethrough_width *= EDSCALE;
#endif
VS::get_singleton()->canvas_item_add_line(ci, p_ofs + Point2(align_ofs + wofs, uy), p_ofs + Point2(align_ofs + wofs + w, uy), uc, strikethrough_width);
}
}
ADVANCE(fw);
CHECK_HEIGHT(fh); //must be done somewhere
c = &c[end];
}
} break;
case ITEM_IMAGE: {
lh = 0;
if (p_mode != PROCESS_CACHE)
lh = line < l.height_caches.size() ? l.height_caches[line] : 1;
else
l.char_count += 1; //images count as chars too
ItemImage *img = static_cast<ItemImage *>(it);
Ref<Font> font = _find_font(it);
if (font.is_null())
font = p_base_font;
if (p_mode == PROCESS_POINTER && r_click_char)
*r_click_char = 0;
ENSURE_WIDTH(img->size.width);
bool visible = visible_characters < 0 || (p_char_count < visible_characters && YRANGE_VISIBLE(y + lh - font->get_descent() - img->size.height, img->size.height));
if (visible)
line_is_blank = false;
if (p_mode == PROCESS_DRAW && visible) {
img->image->draw_rect(ci, Rect2(p_ofs + Point2(align_ofs + wofs, y + lh - font->get_descent() - img->size.height), img->size));
}
p_char_count++;
ADVANCE(img->size.width);
CHECK_HEIGHT((img->size.height + font->get_descent()));
} break;
case ITEM_NEWLINE: {
lh = 0;
if (p_mode != PROCESS_CACHE) {
lh = line < l.height_caches.size() ? l.height_caches[line] : 1;
line_is_blank = true;
}
} break;
case ITEM_TABLE: {
lh = 0;
ItemTable *table = static_cast<ItemTable *>(it);
int hseparation = get_constant("table_hseparation");
int vseparation = get_constant("table_vseparation");
Color ccolor = _find_color(table, p_base_color);
Vector2 draw_ofs = Point2(wofs, y);
Color font_color_shadow = get_color("font_color_shadow");
bool use_outline = get_constant("shadow_as_outline");
Point2 shadow_ofs2(get_constant("shadow_offset_x"), get_constant("shadow_offset_y"));
if (p_mode == PROCESS_CACHE) {
int idx = 0;
//set minimums to zero
for (int i = 0; i < table->columns.size(); 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 * (table->columns.size() - 1) - wofs;
for (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 % table->columns.size();
int ly = 0;
for (int i = 0; i < frame->lines.size(); i++) {
_process_line(frame, Point2(), ly, available_width, i, PROCESS_CACHE, cfont, Color(), font_color_shadow, use_outline, shadow_ofs2);
table->columns.write[column].min_width = MAX(table->columns[column].min_width, frame->lines[i].minimum_width);
table->columns.write[column].max_width = MAX(table->columns[column].max_width, frame->lines[i].maximum_width);
}
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 < table->columns.size(); 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 < table->columns.size(); i++) {
table->columns.write[i].width = table->columns[i].min_width;
if (table->columns[i].expand && total_ratio > 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 < table->columns.size(); 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 < table->columns.size(); 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;
}
}
}
}
}
//compute caches properly again with the right width
idx = 0;
for (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 % table->columns.size();
for (int i = 0; i < frame->lines.size(); i++) {
int ly = 0;
_process_line(frame, Point2(), ly, table->columns[column].width, i, PROCESS_CACHE, cfont, Color(), font_color_shadow, use_outline, shadow_ofs2);
frame->lines.write[i].height_cache = ly; //actual height
frame->lines.write[i].height_accum_cache = ly; //actual height
}
idx++;
}
}
Point2 offset(align_ofs + hseparation, vseparation);
int row_height = 0;
//draw using computed caches
int idx = 0;
for (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 % table->columns.size();
int ly = 0;
int yofs = 0;
int lines_h = frame->lines[frame->lines.size() - 1].height_accum_cache - (frame->lines[0].height_accum_cache - frame->lines[0].height_cache);
int lines_ofs = p_ofs.y + offset.y + draw_ofs.y;
bool visible = lines_ofs < get_size().height && lines_ofs + lines_h >= 0;
if (visible)
line_is_blank = false;
for (int i = 0; i < frame->lines.size(); i++) {
if (visible) {
if (p_mode == PROCESS_DRAW) {
nonblank_line_count += _process_line(frame, p_ofs + offset + draw_ofs + Vector2(0, yofs), ly, table->columns[column].width, i, PROCESS_DRAW, cfont, ccolor, font_color_shadow, use_outline, shadow_ofs2);
} else if (p_mode == PROCESS_POINTER) {
_process_line(frame, p_ofs + offset + draw_ofs + Vector2(0, yofs), ly, table->columns[column].width, i, PROCESS_POINTER, cfont, ccolor, font_color_shadow, use_outline, shadow_ofs2, p_click_pos, r_click_item, r_click_char, r_outside);
if (r_click_item && *r_click_item) {
RETURN; // exit early
}
}
}
yofs += frame->lines[i].height_cache;
if (p_mode == PROCESS_CACHE) {
frame->lines.write[i].height_accum_cache = offset.y + draw_ofs.y + frame->lines[i].height_cache;
}
}
row_height = MAX(yofs, row_height);
offset.x += table->columns[column].width + hseparation;
if (column == table->columns.size() - 1) {
offset.y += row_height + vseparation;
offset.x = hseparation;
row_height = 0;
}
idx++;
}
int total_height = offset.y;
if (row_height) {
total_height = row_height + vseparation;
}
ADVANCE(table->total_width);
CHECK_HEIGHT(total_height);
} break;
default: {
}
}
Item *itp = it;
it = _get_next_item(it);
if (it && (p_line + 1 < p_frame->lines.size()) && p_frame->lines[p_line + 1].from == it) {
if (p_mode == PROCESS_POINTER && r_click_item && p_click_pos.y >= p_ofs.y + y && p_click_pos.y <= p_ofs.y + y + lh) {
//went to next line, but pointer was on the previous one
if (r_outside) *r_outside = true;
*r_click_item = itp;
*r_click_char = rchar;
RETURN;
}
break;
}
}
NEW_LINE;
RETURN;
#undef RETURN
#undef NEW_LINE
#undef ENSURE_WIDTH
#undef ADVANCE
#undef CHECK_HEIGHT
}
void RichTextLabel::_scroll_changed(double) {
if (updating_scroll || !scroll_active)
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_margin(MARGIN_LEFT, ANCHOR_END, -scroll_w);
} else {
scroll_visible = false;
scroll_w = 0;
vscroll->hide();
}
main->first_invalid_line = 0; //invalidate ALL
_validate_line_caches(main);
}
}
void RichTextLabel::_update_fx(RichTextLabel::ItemFrame *p_frame, float p_delta_time) {
Item *it = p_frame;
while (it) {
ItemFX *ifx = NULL;
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 = NULL;
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 = NULL;
emit_signal("meta_hover_ended", current_meta);
current_meta = false;
update();
}
} break;
case NOTIFICATION_RESIZED: {
main->first_invalid_line = 0; //invalidate ALL
update();
} break;
case NOTIFICATION_ENTER_TREE: {
if (bbcode != "")
set_bbcode(bbcode);
main->first_invalid_line = 0; //invalidate ALL
update();
} break;
case NOTIFICATION_THEME_CHANGED: {
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_stylebox("normal"), Rect2(Point2(), size));
if (has_focus()) {
VisualServer::get_singleton()->canvas_item_add_clip_ignore(ci, true);
draw_style_box(get_stylebox("focus"), Rect2(Point2(), size));
VisualServer::get_singleton()->canvas_item_add_clip_ignore(ci, false);
}
int ofs = vscroll->get_value();
//todo, change to binary search
int from_line = 0;
int total_chars = 0;
while (from_line < main->lines.size()) {
if (main->lines[from_line].height_accum_cache + _get_text_rect().get_position().y >= ofs)
break;
total_chars += main->lines[from_line].char_count;
from_line++;
}
if (from_line >= main->lines.size())
break; //nothing to draw
int y = (main->lines[from_line].height_accum_cache - main->lines[from_line].height_cache) - ofs;
Ref<Font> base_font = get_font("normal_font");
Color base_color = get_color("default_color");
Color font_color_shadow = get_color("font_color_shadow");
bool use_outline = get_constant("shadow_as_outline");
Point2 shadow_ofs(get_constant("shadow_offset_x"), get_constant("shadow_offset_y"));
visible_line_count = 0;
while (y < size.height && from_line < main->lines.size()) {
visible_line_count += _process_line(main, text_rect.get_position(), y, text_rect.get_size().width - scroll_w, from_line, PROCESS_DRAW, base_font, base_color, font_color_shadow, use_outline, shadow_ofs, Point2i(), NULL, NULL, NULL, total_chars);
total_chars += main->lines[from_line].char_count;
from_line++;
}
} break;
case NOTIFICATION_INTERNAL_PROCESS: {
float dt = get_process_delta_time();
_update_fx(main, dt);
update();
}
}
}
void RichTextLabel::_find_click(ItemFrame *p_frame, const Point2i &p_click, Item **r_click_item, int *r_click_char, bool *r_outside) {
if (r_click_item)
*r_click_item = NULL;
Rect2 text_rect = _get_text_rect();
int ofs = vscroll->get_value();
Color font_color_shadow = get_color("font_color_shadow");
bool use_outline = get_constant("shadow_as_outline");
Point2 shadow_ofs(get_constant("shadow_offset_x"), get_constant("shadow_offset_y"));
//todo, change to binary search
int from_line = 0;
while (from_line < p_frame->lines.size()) {
if (p_frame->lines[from_line].height_accum_cache >= ofs)
break;
from_line++;
}
if (from_line >= p_frame->lines.size())
return;
int y = (p_frame->lines[from_line].height_accum_cache - p_frame->lines[from_line].height_cache) - ofs;
Ref<Font> base_font = get_font("normal_font");
Color base_color = get_color("default_color");
while (y < text_rect.get_size().height && from_line < p_frame->lines.size()) {
_process_line(p_frame, text_rect.get_position(), y, text_rect.get_size().width - scroll_w, from_line, PROCESS_POINTER, base_font, base_color, font_color_shadow, use_outline, shadow_ofs, p_click, r_click_item, r_click_char, r_outside);
if (r_click_item && *r_click_item)
return;
from_line++;
}
}
Control::CursorShape RichTextLabel::get_cursor_shape(const Point2 &p_pos) const {
if (!underline_meta)
return CURSOR_ARROW;
if (selection.click)
return CURSOR_IBEAM;
if (main->first_invalid_line < main->lines.size())
return CURSOR_ARROW; //invalid
int line = 0;
Item *item = NULL;
bool outside;
((RichTextLabel *)(this))->_find_click(main, p_pos, &item, &line, &outside);
if (item && !outside && ((RichTextLabel *)(this))->_find_meta(item, NULL))
return CURSOR_POINTING_HAND;
return CURSOR_ARROW;
}
void RichTextLabel::_gui_input(Ref<InputEvent> p_event) {
Ref<InputEventMouseButton> b = p_event;
if (b.is_valid()) {
if (main->first_invalid_line < main->lines.size())
return;
if (b->get_button_index() == BUTTON_LEFT) {
if (b->is_pressed() && !b->is_doubleclick()) {
scroll_updated = false;
int line = 0;
Item *item = NULL;
bool outside;
_find_click(main, b->get_position(), &item, &line, &outside);
if (item) {
if (selection.enabled) {
selection.click = item;
selection.click_char = line;
// Erase previous selection.
if (selection.active) {
selection.from = NULL;
selection.from_char = '\0';
selection.to = NULL;
selection.to_char = '\0';
selection.active = false;
update();
}
}
}
} else if (b->is_pressed() && b->is_doubleclick() && selection.enabled) {
//doubleclick: select word
int line = 0;
Item *item = NULL;
bool outside;
_find_click(main, b->get_position(), &item, &line, &outside);
while (item && item->type != ITEM_TEXT) {
item = _get_next_item(item, true);
}
if (item && item->type == ITEM_TEXT) {
String itext = static_cast<ItemText *>(item)->text;
int beg, end;
if (select_word(itext, line, beg, end)) {
selection.from = item;
selection.to = item;
selection.from_char = beg;
selection.to_char = end - 1;
selection.active = true;
update();
}
}
} else if (!b->is_pressed()) {
selection.click = NULL;
if (!b->is_doubleclick() && !scroll_updated) {
int line = 0;
Item *item = NULL;
bool outside;
_find_click(main, b->get_position(), &item, &line, &outside);
if (item) {
Variant meta;
if (!outside && _find_meta(item, &meta)) {
//meta clicked
emit_signal("meta_clicked", meta);
}
}
}
}
}
if (b->get_button_index() == BUTTON_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() == BUTTON_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() && !k->get_alt() && !k->get_shift()) {
bool handled = true;
switch (k->get_scancode()) {
case KEY_PAGEUP: {
if (vscroll->is_visible_in_tree())
vscroll->set_value(vscroll->get_value() - vscroll->get_page());
} break;
case KEY_PAGEDOWN: {
if (vscroll->is_visible_in_tree())
vscroll->set_value(vscroll->get_value() + vscroll->get_page());
} break;
case KEY_UP: {
if (vscroll->is_visible_in_tree())
vscroll->set_value(vscroll->get_value() - get_font("normal_font")->get_height());
} break;
case KEY_DOWN: {
if (vscroll->is_visible_in_tree())
vscroll->set_value(vscroll->get_value() + get_font("normal_font")->get_height());
} break;
case KEY_HOME: {
if (vscroll->is_visible_in_tree())
vscroll->set_value(0);
} break;
case KEY_END: {
if (vscroll->is_visible_in_tree())
vscroll->set_value(vscroll->get_max());
} break;
case KEY_INSERT:
case KEY_C: {
if (k->get_command()) {
selection_copy();
} else {
handled = false;
}
} break;
default: handled = false;
}
if (handled)
accept_event();
}
}
Ref<InputEventMouseMotion> m = p_event;
if (m.is_valid()) {
if (main->first_invalid_line < main->lines.size())
return;
int line = 0;
Item *item = NULL;
bool outside;
_find_click(main, m->get_position(), &item, &line, &outside);
if (selection.click) {
if (!item)
return; // do not update
selection.from = selection.click;
selection.from_char = selection.click_char;
selection.to = item;
selection.to_char = line;
bool swap = false;
if (selection.from->index > selection.to->index)
swap = true;
else if (selection.from->index == selection.to->index) {
if (selection.from_char > selection.to_char)
swap = true;
else if (selection.from_char == selection.to_char) {
selection.active = false;
return;
}
}
if (swap) {
SWAP(selection.from, selection.to);
SWAP(selection.from_char, selection.to_char);
}
selection.active = true;
update();
}
Variant meta;
ItemMeta *item_meta;
if (item && !outside && _find_meta(item, &meta, &item_meta)) {
if (meta_hovering != item_meta) {
if (meta_hovering) {
emit_signal("meta_hover_ended", current_meta);
}
meta_hovering = item_meta;
current_meta = meta;
emit_signal("meta_hover_started", meta);
}
} else if (meta_hovering) {
meta_hovering = NULL;
emit_signal("meta_hover_ended", current_meta);
current_meta = false;
}
}
}
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_margin(Item *p_item, const Ref<Font> &p_base_font) {
Item *item = p_item;
int margin = 0;
while (item) {
if (item->type == ITEM_INDENT) {
Ref<Font> font = _find_font(item);
if (font.is_null())
font = p_base_font;
ItemIndent *indent = static_cast<ItemIndent *>(item);
margin += indent->level * tab_size * font->get_char_size(' ').width;
} else if (item->type == ITEM_LIST) {
Ref<Font> font = _find_font(item);
if (font.is_null())
font = p_base_font;
}
item = item->parent;
}
return margin;
}
RichTextLabel::Align RichTextLabel::_find_align(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_ALIGN) {
ItemAlign *align = static_cast<ItemAlign *>(item);
return align->align;
}
item = item->parent;
}
return default_align;
}
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;
}
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;
}
bool RichTextLabel::_find_by_type(Item *p_item, ItemType p_type) {
ERR_FAIL_INDEX_V((int)p_type, 19, false);
Item *item = p_item;
while (item) {
if (item->type == p_type) {
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;
}
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 (List<Item *>::Element *E = from->subitems.front(); E; E = E->next()) {
bool layout = _find_layout_subitem(E->get(), 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())
return;
//validate invalid lines
Size2 size = get_size();
if (fixed_width != -1) {
size.width = fixed_width;
}
Rect2 text_rect = _get_text_rect();
Color font_color_shadow = get_color("font_color_shadow");
bool use_outline = get_constant("shadow_as_outline");
Point2 shadow_ofs(get_constant("shadow_offset_x"), get_constant("shadow_offset_y"));
Ref<Font> base_font = get_font("normal_font");
for (int i = p_frame->first_invalid_line; i < p_frame->lines.size(); i++) {
int y = 0;
_process_line(p_frame, text_rect.get_position(), y, text_rect.get_size().width - scroll_w, i, PROCESS_CACHE, base_font, Color(), font_color_shadow, use_outline, shadow_ofs);
p_frame->lines.write[i].height_cache = y;
p_frame->lines.write[i].height_accum_cache = y;
if (i > 0)
p_frame->lines.write[i].height_accum_cache += p_frame->lines[i - 1].height_accum_cache;
}
int total_height = 0;
if (p_frame->lines.size())
total_height = p_frame->lines[p_frame->lines.size() - 1].height_accum_cache + get_stylebox("normal")->get_minimum_size().height;
main->first_invalid_line = p_frame->lines.size();
updating_scroll = true;
vscroll->set_max(total_height);
vscroll->set_page(size.height);
if (scroll_follow && scroll_following)
vscroll->set_value(total_height - size.height);
updating_scroll = false;
}
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++;
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 == NULL) {
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);
}
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 (p_item->type == ITEM_NEWLINE) {
current_frame->lines.remove(p_line);
for (int i = p_subitem_line; i < current->subitems.size(); i++) {
if (current->subitems[i]->line > 0)
current->subitems[i]->line--;
}
}
} else {
for (int i = 0; i < size; i++) {
_remove_item(p_item->subitems.front()->get(), p_line, p_subitem_line);
}
}
}
void RichTextLabel::add_image(const Ref<Texture> &p_image, const int p_width, const int p_height) {
if (current->type == ITEM_TABLE)
return;
ERR_FAIL_COND(p_image.is_null());
ItemImage *item = memnew(ItemImage);
item->image = p_image;
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.height = p_image->get_height();
item->size.width = p_image->get_width();
}
}
_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;
int i = 0;
while (i < current->subitems.size() && current->subitems[i]->line < p_line) {
i++;
}
bool was_newline = false;
while (i < current->subitems.size()) {
was_newline = current->subitems[i]->type == ITEM_NEWLINE;
_remove_item(current->subitems[i], current->subitems[i]->line, p_line);
if (was_newline)
break;
}
if (!was_newline) {
current_frame->lines.remove(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;
return true;
}
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_font("normal_font");
ERR_FAIL_COND(normal_font.is_null());
push_font(normal_font);
}
void RichTextLabel::push_bold() {
Ref<Font> bold_font = get_font("bold_font");
ERR_FAIL_COND(bold_font.is_null());
push_font(bold_font);
}
void RichTextLabel::push_bold_italics() {
Ref<Font> bold_italics_font = get_font("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_font("italics_font");
ERR_FAIL_COND(italics_font.is_null());
push_font(italics_font);
}
void RichTextLabel::push_mono() {
Ref<Font> mono_font = get_font("mono_font");
ERR_FAIL_COND(mono_font.is_null());
push_font(mono_font);
}
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_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_align(Align p_align) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemAlign *item = memnew(ItemAlign);
item->align = p_align;
_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(ListType p_list) {
ERR_FAIL_COND(current->type == ITEM_TABLE);
ERR_FAIL_INDEX(p_list, 3);
ItemList *item = memnew(ItemList);
item->list_type = p_list;
_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) {
ERR_FAIL_COND(p_columns < 1);
ItemTable *item = memnew(ItemTable);
item->columns.resize(p_columns);
item->total_width = 0;
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, true);
}
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_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::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->parent_line = item->parent_frame->lines.size() - 1;
item->lines.resize(1);
item->lines.write[0].from = NULL;
item->first_invalid_line = 0;
}
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 = NULL;
selection.active = false;
current_idx = 1;
}
void RichTextLabel::set_tab_size(int p_spaces) {
tab_size = p_spaces;
main->first_invalid_line = 0;
update();
}
int RichTextLabel::get_tab_size() const {
return tab_size;
}
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;
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;
}
Error RichTextLabel::parse_bbcode(const String &p_bbcode) {
clear();
return append_bbcode(p_bbcode);
}
Error RichTextLabel::append_bbcode(const String &p_bbcode) {
int pos = 0;
List<String> tag_stack;
Ref<Font> normal_font = get_font("normal_font");
Ref<Font> bold_font = get_font("bold_font");
Ref<Font> italics_font = get_font("italics_font");
Ref<Font> bold_italics_font = get_font("bold_italics_font");
Ref<Font> mono_font = get_font("mono_font");
Color base_color = get_color("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);
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")
indent_level--;
if (!tag_ok) {
add_text("[" + tag);
pos = brk_end;
continue;
}
tag_stack.pop_front();
pos = brk_end + 1;
if (tag != "/img")
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=")) {
int columns = tag.substr(6, tag.length()).to_int();
if (columns < 1)
columns = 1;
push_table(columns);
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 == "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 == "center") {
push_align(ALIGN_CENTER);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "fill") {
push_align(ALIGN_FILL);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "right") {
push_align(ALIGN_RIGHT);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "ul") {
push_list(LIST_DOTS);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "ol") {
push_list(LIST_NUMBERS);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag == "indent") {
indent_level++;
push_indent(indent_level);
pos = brk_end + 1;
tag_stack.push_front(tag);
} 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 == "img") {
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<Texture> texture = ResourceLoader::load(image, "Texture");
if (texture.is_valid())
add_image(texture);
pos = end;
tag_stack.push_front(tag);
} else if (tag.begins_with("img=")) {
int width = 0;
int height = 0;
String params = tag.substr(4, tag.length());
int sep = params.find("x");
if (sep == -1) {
width = params.to_int();
} else {
width = params.substr(0, sep).to_int();
height = params.substr(sep + 1, params.length()).to_int();
}
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<Texture> texture = ResourceLoader::load(image, "Texture");
if (texture.is_valid())
add_image(texture, width, height);
pos = end;
tag_stack.push_front("img");
} else if (tag.begins_with("color=")) {
String col = tag.substr(6, tag.length());
Color color;
if (col.begins_with("#"))
color = Color::html(col);
else if (col == "aqua")
color = Color(0, 1, 1);
else if (col == "black")
color = Color(0, 0, 0);
else if (col == "blue")
color = Color(0, 0, 1);
else if (col == "fuchsia")
color = Color(1, 0, 1);
else if (col == "gray" || col == "grey")
color = Color(0.5, 0.5, 0.5);
else if (col == "green")
color = Color(0, 0.5, 0);
else if (col == "lime")
color = Color(0, 1, 0);
else if (col == "maroon")
color = Color(0.5, 0, 0);
else if (col == "navy")
color = Color(0, 0, 0.5);
else if (col == "olive")
color = Color(0.5, 0.5, 0);
else if (col == "purple")
color = Color(0.5, 0, 0.5);
else if (col == "red")
color = Color(1, 0, 0);
else if (col == "silver")
color = Color(0.75, 0.75, 0.75);
else if (col == "teal")
color = Color(0, 0.5, 0.5);
else if (col == "white")
color = Color(1, 1, 1);
else if (col == "yellow")
color = Color(1, 1, 0);
else
color = base_color;
push_color(color);
pos = brk_end + 1;
tag_stack.push_front("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("fade")) {
Vector<String> tags = tag.split(" ", false);
int startIndex = 0;
int length = 10;
if (tags.size() > 1) {
tags.remove(0);
for (int i = 0; i < tags.size(); i++) {
String expr = tags[i];
if (expr.begins_with("start=")) {
String start_str = expr.substr(6, expr.length());
startIndex = start_str.to_int();
} else if (expr.begins_with("length=")) {
String end_str = expr.substr(7, expr.length());
length = end_str.to_int();
}
}
}
push_fade(startIndex, length);
pos = brk_end + 1;
tag_stack.push_front("fade");
} else if (tag.begins_with("shake")) {
Vector<String> tags = tag.split(" ", false);
int strength = 5;
float rate = 20.0f;
if (tags.size() > 1) {
tags.remove(0);
for (int i = 0; i < tags.size(); i++) {
String expr = tags[i];
if (expr.begins_with("level=")) {
String str_str = expr.substr(6, expr.length());
strength = str_str.to_int();
} else if (expr.begins_with("rate=")) {
String rate_str = expr.substr(5, expr.length());
rate = rate_str.to_float();
}
}
}
push_shake(strength, rate);
pos = brk_end + 1;
tag_stack.push_front("shake");
set_process_internal(true);
} else if (tag.begins_with("wave")) {
Vector<String> tags = tag.split(" ", false);
float amplitude = 20.0f;
float period = 5.0f;
if (tags.size() > 1) {
tags.remove(0);
for (int i = 0; i < tags.size(); i++) {
String expr = tags[i];
if (expr.begins_with("amp=")) {
String amp_str = expr.substr(4, expr.length());
amplitude = amp_str.to_float();
} else if (expr.begins_with("freq=")) {
String period_str = expr.substr(5, expr.length());
period = period_str.to_float();
}
}
}
push_wave(period, amplitude);
pos = brk_end + 1;
tag_stack.push_front("wave");
set_process_internal(true);
} else if (tag.begins_with("tornado")) {
Vector<String> tags = tag.split(" ", false);
float radius = 10.0f;
float frequency = 1.0f;
if (tags.size() > 1) {
tags.remove(0);
for (int i = 0; i < tags.size(); i++) {
String expr = tags[i];
if (expr.begins_with("radius=")) {
String amp_str = expr.substr(7, expr.length());
radius = amp_str.to_float();
} else if (expr.begins_with("freq=")) {
String period_str = expr.substr(5, expr.length());
frequency = period_str.to_float();
}
}
}
push_tornado(frequency, radius);
pos = brk_end + 1;
tag_stack.push_front("tornado");
set_process_internal(true);
} else if (tag.begins_with("rainbow")) {
Vector<String> tags = tag.split(" ", false);
float saturation = 0.8f;
float value = 0.8f;
float frequency = 1.0f;
if (tags.size() > 1) {
tags.remove(0);
for (int i = 0; i < tags.size(); i++) {
String expr = tags[i];
if (expr.begins_with("sat=")) {
String sat_str = expr.substr(4, expr.length());
saturation = sat_str.to_float();
} else if (expr.begins_with("val=")) {
String val_str = expr.substr(4, expr.length());
value = val_str.to_float();
} else if (expr.begins_with("freq=")) {
String freq_str = expr.substr(5, expr.length());
frequency = freq_str.to_float();
}
}
}
push_rainbow(saturation, value, frequency);
pos = brk_end + 1;
tag_stack.push_front("rainbow");
set_process_internal(true);
} else {
Vector<String> expr = tag.split(" ", false);
if (expr.size() < 1) {
add_text("[");
pos = brk_pos + 1;
} else {
String identifier = expr[0];
expr.remove(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;
}
}
}
}
return OK;
}
void RichTextLabel::scroll_to_line(int p_line) {
ERR_FAIL_INDEX(p_line, main->lines.size());
_validate_line_caches(main);
vscroll->set_value(main->lines[p_line].height_accum_cache - main->lines[p_line].height_cache);
}
int RichTextLabel::get_line_count() const {
return current_frame->lines.size();
}
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);
}
}
bool RichTextLabel::search(const String &p_string, bool p_from_selection, bool p_search_previous) {
ERR_FAIL_COND_V(!selection.enabled, false);
Item *it = main;
int charidx = 0;
if (p_from_selection && selection.active) {
it = selection.to;
charidx = selection.to_char + 1;
}
while (it) {
if (it->type == ITEM_TEXT) {
ItemText *t = static_cast<ItemText *>(it);
int sp = t->text.find(p_string, charidx);
if (sp != -1) {
selection.from = it;
selection.from_char = sp;
selection.to = it;
selection.to_char = sp + p_string.length() - 1;
selection.active = true;
update();
_validate_line_caches(main);
int fh = _find_font(t).is_valid() ? _find_font(t)->get_height() : get_font("normal_font")->get_height();
float offset = 0;
int line = t->line;
Item *item = t;
while (item) {
if (item->type == ITEM_FRAME) {
ItemFrame *frame = static_cast<ItemFrame *>(item);
if (line >= 0 && line < frame->lines.size()) {
offset += frame->lines[line].height_accum_cache - frame->lines[line].height_cache;
line = frame->line;
}
}
item = item->parent;
}
vscroll->set_value(offset - fh);
return true;
}
}
if (p_search_previous)
it = _get_prev_item(it, true);
else
it = _get_next_item(it, true);
charidx = 0;
}
return false;
}
void RichTextLabel::selection_copy() {
if (!selection.active || !selection.enabled)
return;
String text;
RichTextLabel::Item *item = selection.from;
while (item) {
if (item->type == ITEM_TEXT) {
String itext = static_cast<ItemText *>(item)->text;
if (item == selection.from && item == selection.to) {
text += itext.substr(selection.from_char, selection.to_char - selection.from_char + 1);
} else if (item == selection.from) {
text += itext.substr(selection.from_char, itext.size());
} else if (item == selection.to) {
text += itext.substr(0, selection.to_char + 1);
} else {
text += itext;
}
} else if (item->type == ITEM_NEWLINE) {
text += "\n";
}
if (item == selection.to)
break;
item = _get_next_item(item, true);
}
if (text != "") {
OS::get_singleton()->set_clipboard(text);
}
}
bool RichTextLabel::is_selection_enabled() const {
return selection.enabled;
}
void RichTextLabel::set_bbcode(const String &p_bbcode) {
bbcode = p_bbcode;
if (is_inside_tree() && use_bbcode)
parse_bbcode(p_bbcode);
else { // raw text
clear();
add_text(p_bbcode);
}
}
String RichTextLabel::get_bbcode() const {
return bbcode;
}
void RichTextLabel::set_use_bbcode(bool p_enable) {
if (use_bbcode == p_enable)
return;
use_bbcode = p_enable;
set_bbcode(bbcode);
}
bool RichTextLabel::is_using_bbcode() const {
return use_bbcode;
}
String RichTextLabel::get_text() {
String text = "";
Item *it = main;
while (it) {
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_INDENT) {
text += "\t";
}
it = _get_next_item(it, true);
}
return text;
}
void RichTextLabel::set_text(const String &p_string) {
clear();
add_text(p_string);
}
void RichTextLabel::set_percent_visible(float 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;
}
update();
}
float RichTextLabel::get_percent_visible() const {
return percent_visible;
}
void RichTextLabel::set_effects(const Vector<Variant> &effects) {
custom_effects.clear();
for (int i = 0; i < effects.size(); i++) {
Ref<RichTextEffect> effect = Ref<RichTextEffect>(effects[i]);
custom_effects.push_back(effect);
}
parse_bbcode(bbcode);
}
Vector<Variant> RichTextLabel::get_effects() {
Vector<Variant> r;
for (int i = 0; i < custom_effects.size(); i++) {
r.push_back(custom_effects[i].get_ref_ptr());
}
return r;
}
void RichTextLabel::install_effect(const Variant effect) {
Ref<RichTextEffect> rteffect;
rteffect = effect;
if (rteffect.is_valid()) {
custom_effects.push_back(effect);
parse_bbcode(bbcode);
}
}
int RichTextLabel::get_content_height() {
int total_height = 0;
if (main->lines.size())
total_height = main->lines[main->lines.size() - 1].height_accum_cache + get_stylebox("normal")->get_minimum_size().height;
return total_height;
}
void RichTextLabel::_bind_methods() {
ClassDB::bind_method(D_METHOD("_gui_input"), &RichTextLabel::_gui_input);
ClassDB::bind_method(D_METHOD("_scroll_changed"), &RichTextLabel::_scroll_changed);
ClassDB::bind_method(D_METHOD("get_text"), &RichTextLabel::get_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"), &RichTextLabel::add_image, DEFVAL(0), DEFVAL(0));
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_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_align", "align"), &RichTextLabel::push_align);
ClassDB::bind_method(D_METHOD("push_indent", "level"), &RichTextLabel::push_indent);
ClassDB::bind_method(D_METHOD("push_list", "type"), &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"), &RichTextLabel::push_table);
ClassDB::bind_method(D_METHOD("set_table_column_expand", "column", "expand", "ratio"), &RichTextLabel::set_table_column_expand);
ClassDB::bind_method(D_METHOD("push_cell"), &RichTextLabel::push_cell);
ClassDB::bind_method(D_METHOD("pop"), &RichTextLabel::pop);
ClassDB::bind_method(D_METHOD("clear"), &RichTextLabel::clear);
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"), &RichTextLabel::get_v_scroll);
ClassDB::bind_method(D_METHOD("scroll_to_line", "line"), &RichTextLabel::scroll_to_line);
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_selection_enabled", "enabled"), &RichTextLabel::set_selection_enabled);
ClassDB::bind_method(D_METHOD("is_selection_enabled"), &RichTextLabel::is_selection_enabled);
ClassDB::bind_method(D_METHOD("parse_bbcode", "bbcode"), &RichTextLabel::parse_bbcode);
ClassDB::bind_method(D_METHOD("append_bbcode", "bbcode"), &RichTextLabel::append_bbcode);
ClassDB::bind_method(D_METHOD("set_bbcode", "text"), &RichTextLabel::set_bbcode);
ClassDB::bind_method(D_METHOD("get_bbcode"), &RichTextLabel::get_bbcode);
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("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_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_content_height"), &RichTextLabel::get_content_height);
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);
ADD_GROUP("BBCode", "bbcode_");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "bbcode_enabled"), "set_use_bbcode", "is_using_bbcode");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "bbcode_text", PROPERTY_HINT_MULTILINE_TEXT), "set_bbcode", "get_bbcode");
ADD_PROPERTY(PropertyInfo(Variant::INT, "visible_characters", PROPERTY_HINT_RANGE, "-1,128000,1"), "set_visible_characters", "get_visible_characters");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "percent_visible", PROPERTY_HINT_RANGE, "0,1,0.001"), "set_percent_visible", "get_percent_visible");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "meta_underlined"), "set_meta_underline", "is_meta_underlined");
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, "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::ARRAY, "custom_effects", PROPERTY_HINT_RESOURCE_TYPE, "17/17:RichTextEffect", (PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_SCRIPT_VARIABLE), "RichTextEffect"), "set_effects", "get_effects");
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(ALIGN_LEFT);
BIND_ENUM_CONSTANT(ALIGN_CENTER);
BIND_ENUM_CONSTANT(ALIGN_RIGHT);
BIND_ENUM_CONSTANT(ALIGN_FILL);
BIND_ENUM_CONSTANT(LIST_NUMBERS);
BIND_ENUM_CONSTANT(LIST_LETTERS);
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_COLOR);
BIND_ENUM_CONSTANT(ITEM_UNDERLINE);
BIND_ENUM_CONSTANT(ITEM_STRIKETHROUGH);
BIND_ENUM_CONSTANT(ITEM_ALIGN);
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_CUSTOMFX);
BIND_ENUM_CONSTANT(ITEM_META);
}
void RichTextLabel::set_visible_characters(int p_visible) {
visible_characters = p_visible;
update();
}
int RichTextLabel::get_visible_characters() const {
return visible_characters;
}
int RichTextLabel::get_total_character_count() const {
int tc = 0;
for (int i = 0; i < current_frame->lines.size(); i++)
tc += current_frame->lines[i].char_count;
return tc;
}
void RichTextLabel::set_fixed_size_to_width(int p_width) {
fixed_width = p_width;
minimum_size_changed();
}
Size2 RichTextLabel::get_minimum_size() const {
if (fixed_width != -1) {
const_cast<RichTextLabel *>(this)->_validate_line_caches(main);
return Size2(fixed_width, const_cast<RichTextLabel *>(this)->get_content_height());
}
return Size2();
}
Ref<RichTextEffect> RichTextLabel::_get_custom_effect_by_code(String p_bbcode_identifier) {
for (int i = 0; i < custom_effects.size(); i++) {
if (!custom_effects[i].is_valid())
continue;
if (custom_effects[i]->get_bbcode() == p_bbcode_identifier) {
return custom_effects[i];
}
}
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);
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_double());
} else if (!numerical.search(values[j]).is_null()) {
a.append(values[j].to_int());
} else {
a.append(values[j]);
}
}
if (values.size() > 1) {
d[key] = a;
} else if (values.size() == 1) {
d[key] = a[0];
}
}
return d;
}
RichTextLabel::RichTextLabel() {
main = memnew(ItemFrame);
main->index = 0;
current = main;
main->lines.resize(1);
main->lines.write[0].from = main;
main->first_invalid_line = 0;
current_frame = main;
tab_size = 4;
default_align = ALIGN_LEFT;
underline_meta = true;
meta_hovering = NULL;
override_selected_font_color = false;
scroll_visible = false;
scroll_follow = false;
scroll_following = false;
updating_scroll = false;
scroll_active = true;
scroll_w = 0;
scroll_updated = false;
vscroll = memnew(VScrollBar);
add_child(vscroll);
vscroll->set_drag_node(String(".."));
vscroll->set_step(1);
vscroll->set_anchor_and_margin(MARGIN_TOP, ANCHOR_BEGIN, 0);
vscroll->set_anchor_and_margin(MARGIN_BOTTOM, ANCHOR_END, 0);
vscroll->set_anchor_and_margin(MARGIN_RIGHT, ANCHOR_END, 0);
vscroll->connect("value_changed", this, "_scroll_changed");
vscroll->set_step(1);
vscroll->hide();
current_idx = 1;
use_bbcode = false;
selection.click = NULL;
selection.active = false;
selection.enabled = false;
visible_characters = -1;
percent_visible = 1;
visible_line_count = 0;
fixed_width = -1;
set_clip_contents(true);
}
RichTextLabel::~RichTextLabel() {
memdelete(main);
}
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