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virtualx-engine/scene/gui/rich_text_label.h
Juan Linietsky 3f335ce3d4 Texture refactor 
-Texture renamed to Texture2D
-TextureLayered as base now inherits 2Darray, cubemap and cubemap array
-Removed all references to flags in textures (they will go in the shader)
-Texture3D gone for now (will come back later done properly)
-Create base rasterizer for RenderDevice, RasterizerRD
2020-02-11 11:53:26 +01:00

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/*************************************************************************/
/* rich_text_label.h */
/*************************************************************************/
/* 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. */
/*************************************************************************/
#ifndef RICH_TEXT_LABEL_H
#define RICH_TEXT_LABEL_H
#include "rich_text_effect.h"
#include "scene/gui/scroll_bar.h"
class RichTextLabel : public Control {
GDCLASS(RichTextLabel, Control);
public:
enum Align {
ALIGN_LEFT,
ALIGN_CENTER,
ALIGN_RIGHT,
ALIGN_FILL
};
enum ListType {
LIST_NUMBERS,
LIST_LETTERS,
LIST_DOTS
};
enum ItemType {
ITEM_FRAME,
ITEM_TEXT,
ITEM_IMAGE,
ITEM_NEWLINE,
ITEM_FONT,
ITEM_COLOR,
ITEM_UNDERLINE,
ITEM_STRIKETHROUGH,
ITEM_ALIGN,
ITEM_INDENT,
ITEM_LIST,
ITEM_TABLE,
ITEM_FADE,
ITEM_SHAKE,
ITEM_WAVE,
ITEM_TORNADO,
ITEM_RAINBOW,
ITEM_META,
ITEM_CUSTOMFX
};
protected:
static void _bind_methods();
private:
struct Item;
struct Line {
Item *from;
Vector<int> offset_caches;
Vector<int> height_caches;
Vector<int> ascent_caches;
Vector<int> descent_caches;
Vector<int> space_caches;
int height_cache;
int height_accum_cache;
int char_count;
int minimum_width;
int maximum_width;
Line() {
from = NULL;
char_count = 0;
}
};
struct Item {
int index;
Item *parent;
ItemType type;
List<Item *> subitems;
List<Item *>::Element *E;
int line;
void _clear_children() {
while (subitems.size()) {
memdelete(subitems.front()->get());
subitems.pop_front();
}
}
Item() {
parent = NULL;
E = NULL;
line = 0;
}
virtual ~Item() { _clear_children(); }
};
struct ItemFrame : public Item {
int parent_line;
bool cell;
Vector<Line> lines;
int first_invalid_line;
ItemFrame *parent_frame;
ItemFrame() {
type = ITEM_FRAME;
parent_frame = NULL;
cell = false;
parent_line = 0;
}
};
struct ItemText : public Item {
String text;
ItemText() { type = ITEM_TEXT; }
};
struct ItemImage : public Item {
Ref<Texture2D> image;
Size2 size;
ItemImage() { type = ITEM_IMAGE; }
};
struct ItemFont : public Item {
Ref<Font> font;
ItemFont() { type = ITEM_FONT; }
};
struct ItemColor : public Item {
Color color;
ItemColor() { type = ITEM_COLOR; }
};
struct ItemUnderline : public Item {
ItemUnderline() { type = ITEM_UNDERLINE; }
};
struct ItemStrikethrough : public Item {
ItemStrikethrough() { type = ITEM_STRIKETHROUGH; }
};
struct ItemMeta : public Item {
Variant meta;
ItemMeta() { type = ITEM_META; }
};
struct ItemAlign : public Item {
Align align;
ItemAlign() { type = ITEM_ALIGN; }
};
struct ItemIndent : public Item {
int level;
ItemIndent() { type = ITEM_INDENT; }
};
struct ItemList : public Item {
ListType list_type;
ItemList() { type = ITEM_LIST; }
};
struct ItemNewline : public Item {
ItemNewline() { type = ITEM_NEWLINE; }
};
struct ItemTable : public Item {
struct Column {
bool expand;
int expand_ratio;
int min_width;
int max_width;
int width;
};
Vector<Column> columns;
int total_width;
ItemTable() { type = ITEM_TABLE; }
};
struct ItemFade : public Item {
int starting_index;
int length;
ItemFade() { type = ITEM_FADE; }
};
struct ItemFX : public Item {
float elapsed_time;
ItemFX() {
elapsed_time = 0.0f;
}
};
struct ItemShake : public ItemFX {
int strength;
float rate;
uint64_t _current_rng;
uint64_t _previous_rng;
ItemShake() {
strength = 0;
rate = 0.0f;
_current_rng = 0;
type = ITEM_SHAKE;
}
void reroll_random() {
_previous_rng = _current_rng;
_current_rng = Math::rand();
}
uint64_t offset_random(int index) {
return (_current_rng >> (index % 64)) |
(_current_rng << (64 - (index % 64)));
}
uint64_t offset_previous_random(int index) {
return (_previous_rng >> (index % 64)) |
(_previous_rng << (64 - (index % 64)));
}
};
struct ItemWave : public ItemFX {
float frequency;
float amplitude;
ItemWave() {
frequency = 1.0f;
amplitude = 1.0f;
type = ITEM_WAVE;
}
};
struct ItemTornado : public ItemFX {
float radius;
float frequency;
ItemTornado() {
radius = 1.0f;
frequency = 1.0f;
type = ITEM_TORNADO;
}
};
struct ItemRainbow : public ItemFX {
float saturation;
float value;
float frequency;
ItemRainbow() {
saturation = 0.8f;
value = 0.8f;
frequency = 1.0f;
type = ITEM_RAINBOW;
}
};
struct ItemCustomFX : public ItemFX {
Ref<CharFXTransform> char_fx_transform;
Ref<RichTextEffect> custom_effect;
ItemCustomFX() {
type = ITEM_CUSTOMFX;
char_fx_transform.instance();
}
virtual ~ItemCustomFX() {
_clear_children();
char_fx_transform.unref();
custom_effect.unref();
}
};
ItemFrame *main;
Item *current;
ItemFrame *current_frame;
VScrollBar *vscroll;
bool scroll_visible;
bool scroll_follow;
bool scroll_following;
bool scroll_active;
int scroll_w;
bool scroll_updated;
bool updating_scroll;
int current_idx;
int visible_line_count;
int tab_size;
bool underline_meta;
bool override_selected_font_color;
Align default_align;
ItemMeta *meta_hovering;
Variant current_meta;
Vector<Ref<RichTextEffect> > custom_effects;
void _invalidate_current_line(ItemFrame *p_frame);
void _validate_line_caches(ItemFrame *p_frame);
void _add_item(Item *p_item, bool p_enter = false, bool p_ensure_newline = false);
void _remove_item(Item *p_item, const int p_line, const int p_subitem_line);
struct ProcessState {
int line_width;
};
enum ProcessMode {
PROCESS_CACHE,
PROCESS_DRAW,
PROCESS_POINTER
};
struct Selection {
Item *click;
int click_char;
Item *from;
int from_char;
Item *to;
int to_char;
bool active; // anything selected? i.e. from, to, etc. valid?
bool enabled; // allow selections?
};
Selection selection;
int visible_characters;
float percent_visible;
int _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 = Point2i(), Item **r_click_item = NULL, int *r_click_char = NULL, bool *r_outside = NULL, int p_char_count = 0);
void _find_click(ItemFrame *p_frame, const Point2i &p_click, Item **r_click_item = NULL, int *r_click_char = NULL, bool *r_outside = NULL);
Ref<Font> _find_font(Item *p_item);
int _find_margin(Item *p_item, const Ref<Font> &p_base_font);
Align _find_align(Item *p_item);
Color _find_color(Item *p_item, const Color &p_default_color);
bool _find_underline(Item *p_item);
bool _find_strikethrough(Item *p_item);
bool _find_meta(Item *p_item, Variant *r_meta, ItemMeta **r_item = NULL);
bool _find_layout_subitem(Item *from, Item *to);
bool _find_by_type(Item *p_item, ItemType p_type);
void _fetch_item_fx_stack(Item *p_item, Vector<ItemFX *> &r_stack);
void _update_scroll();
void _update_fx(ItemFrame *p_frame, float p_delta_time);
void _scroll_changed(double);
void _gui_input(Ref<InputEvent> p_event);
Item *_get_next_item(Item *p_item, bool p_free = false);
Item *_get_prev_item(Item *p_item, bool p_free = false);
Rect2 _get_text_rect();
Ref<RichTextEffect> _get_custom_effect_by_code(String p_bbcode_identifier);
virtual Dictionary parse_expressions_for_values(Vector<String> p_expressions);
bool use_bbcode;
String bbcode;
void _update_all_lines();
int fixed_width;
protected:
void _notification(int p_what);
public:
String get_text();
void add_text(const String &p_text);
void add_image(const Ref<Texture2D> &p_image, const int p_width = 0, const int p_height = 0);
void add_newline();
bool remove_line(const int p_line);
void push_font(const Ref<Font> &p_font);
void push_normal();
void push_bold();
void push_bold_italics();
void push_italics();
void push_mono();
void push_color(const Color &p_color);
void push_underline();
void push_strikethrough();
void push_align(Align p_align);
void push_indent(int p_level);
void push_list(ListType p_list);
void push_meta(const Variant &p_meta);
void push_table(int p_columns);
void push_fade(int p_start_index, int p_length);
void push_shake(int p_strength, float p_rate);
void push_wave(float p_frequency, float p_amplitude);
void push_tornado(float p_frequency, float p_radius);
void push_rainbow(float p_saturation, float p_value, float p_frequency);
void push_customfx(Ref<RichTextEffect> p_custom_effect, Dictionary p_environment);
void set_table_column_expand(int p_column, bool p_expand, int p_ratio = 1);
int get_current_table_column() const;
void push_cell();
void pop();
void clear();
void set_offset(int p_pixel);
void set_meta_underline(bool p_underline);
bool is_meta_underlined() const;
void set_override_selected_font_color(bool p_override_selected_font_color);
bool is_overriding_selected_font_color() const;
void set_scroll_active(bool p_active);
bool is_scroll_active() const;
void set_scroll_follow(bool p_follow);
bool is_scroll_following() const;
void set_tab_size(int p_spaces);
int get_tab_size() const;
bool search(const String &p_string, bool p_from_selection = false, bool p_search_previous = false);
void scroll_to_line(int p_line);
int get_line_count() const;
int get_visible_line_count() const;
int get_content_height();
VScrollBar *get_v_scroll() { return vscroll; }
virtual CursorShape get_cursor_shape(const Point2 &p_pos) const;
void set_selection_enabled(bool p_enabled);
bool is_selection_enabled() const;
void selection_copy();
Error parse_bbcode(const String &p_bbcode);
Error append_bbcode(const String &p_bbcode);
void set_use_bbcode(bool p_enable);
bool is_using_bbcode() const;
void set_bbcode(const String &p_bbcode);
String get_bbcode() const;
void set_text(const String &p_string);
void set_visible_characters(int p_visible);
int get_visible_characters() const;
int get_total_character_count() const;
void set_percent_visible(float p_percent);
float get_percent_visible() const;
void set_effects(const Vector<Variant> &effects);
Vector<Variant> get_effects();
void install_effect(const Variant effect);
void set_fixed_size_to_width(int p_width);
virtual Size2 get_minimum_size() const;
RichTextLabel();
~RichTextLabel();
};
VARIANT_ENUM_CAST(RichTextLabel::Align);
VARIANT_ENUM_CAST(RichTextLabel::ListType);
VARIANT_ENUM_CAST(RichTextLabel::ItemType);
#endif // RICH_TEXT_LABEL_H
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