1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
|
/*************************************************************************/
/* font.h */
/*************************************************************************/
/* 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. */
/*************************************************************************/
#ifndef FONT_H
#define FONT_H
#include "core/io/resource.h"
#include "core/templates/lru.h"
#include "core/templates/map.h"
#include "scene/resources/texture.h"
#include "servers/text_server.h"
/*************************************************************************/
class FontData : public Resource {
GDCLASS(FontData, Resource);
RES_BASE_EXTENSION("fontdata");
// Font source data.
const uint8_t *data_ptr = nullptr;
size_t data_size = 0;
PackedByteArray data;
bool antialiased = true;
bool msdf = false;
int msdf_pixel_range = 16;
int msdf_size = 48;
int fixed_size = 0;
bool force_autohinter = false;
TextServer::Hinting hinting = TextServer::HINTING_LIGHT;
TextServer::SubpixelPositioning subpixel_positioning = TextServer::SUBPIXEL_POSITIONING_AUTO;
real_t oversampling = 0.f;
real_t embolden = 0.f;
Transform2D transform;
// Cache.
mutable Vector<RID> cache;
_FORCE_INLINE_ void _clear_cache();
_FORCE_INLINE_ void _ensure_rid(int p_cache_index) const;
void _convert_packed_8bit(Ref<Image> &p_source, int p_page, int p_sz);
void _convert_packed_4bit(Ref<Image> &p_source, int p_page, int p_sz);
void _convert_rgba_4bit(Ref<Image> &p_source, int p_page, int p_sz);
void _convert_mono_8bit(Ref<Image> &p_source, int p_page, int p_ch, int p_sz, int p_ol);
void _convert_mono_4bit(Ref<Image> &p_source, int p_page, int p_ch, int p_sz, int p_ol);
protected:
static void _bind_methods();
bool _set(const StringName &p_name, const Variant &p_value);
bool _get(const StringName &p_name, Variant &r_ret) const;
void _get_property_list(List<PropertyInfo> *p_list) const;
virtual void reset_state() override;
public:
Error load_bitmap_font(const String &p_path);
Error load_dynamic_font(const String &p_path);
// Font source data.
virtual void set_data_ptr(const uint8_t *p_data, size_t p_size);
virtual void set_data(const PackedByteArray &p_data);
virtual PackedByteArray get_data() const;
// Common properties.
virtual void set_font_name(const String &p_name);
virtual String get_font_name() const;
virtual void set_font_style_name(const String &p_name);
virtual String get_font_style_name() const;
virtual void set_font_style(uint32_t p_style);
virtual uint32_t get_font_style() const;
virtual void set_antialiased(bool p_antialiased);
virtual bool is_antialiased() const;
virtual void set_multichannel_signed_distance_field(bool p_msdf);
virtual bool is_multichannel_signed_distance_field() const;
virtual void set_msdf_pixel_range(int p_msdf_pixel_range);
virtual int get_msdf_pixel_range() const;
virtual void set_msdf_size(int p_msdf_size);
virtual int get_msdf_size() const;
virtual void set_fixed_size(int p_fixed_size);
virtual int get_fixed_size() const;
virtual void set_force_autohinter(bool p_force_autohinter);
virtual bool is_force_autohinter() const;
virtual void set_hinting(TextServer::Hinting p_hinting);
virtual TextServer::Hinting get_hinting() const;
virtual void set_subpixel_positioning(TextServer::SubpixelPositioning p_subpixel);
virtual TextServer::SubpixelPositioning get_subpixel_positioning() const;
virtual void set_embolden(float p_strength);
virtual float get_embolden() const;
virtual void set_transform(Transform2D p_transform);
virtual Transform2D get_transform() const;
virtual void set_oversampling(real_t p_oversampling);
virtual real_t get_oversampling() const;
// Cache.
virtual RID find_cache(const Dictionary &p_variation_coordinates) const;
virtual int get_cache_count() const;
virtual void clear_cache();
virtual void remove_cache(int p_cache_index);
virtual Array get_size_cache_list(int p_cache_index) const;
virtual void clear_size_cache(int p_cache_index);
virtual void remove_size_cache(int p_cache_index, const Vector2i &p_size);
virtual void set_variation_coordinates(int p_cache_index, const Dictionary &p_variation_coordinates);
virtual Dictionary get_variation_coordinates(int p_cache_index) const;
virtual void set_ascent(int p_cache_index, int p_size, real_t p_ascent);
virtual real_t get_ascent(int p_cache_index, int p_size) const;
virtual void set_descent(int p_cache_index, int p_size, real_t p_descent);
virtual real_t get_descent(int p_cache_index, int p_size) const;
virtual void set_underline_position(int p_cache_index, int p_size, real_t p_underline_position);
virtual real_t get_underline_position(int p_cache_index, int p_size) const;
virtual void set_underline_thickness(int p_cache_index, int p_size, real_t p_underline_thickness);
virtual real_t get_underline_thickness(int p_cache_index, int p_size) const;
virtual void set_scale(int p_cache_index, int p_size, real_t p_scale); // Rendering scale for bitmap fonts (e.g. emoji fonts).
virtual real_t get_scale(int p_cache_index, int p_size) const;
virtual void set_spacing(int p_cache_index, int p_size, TextServer::SpacingType p_spacing, int p_value);
virtual int get_spacing(int p_cache_index, int p_size, TextServer::SpacingType p_spacing) const;
virtual int get_texture_count(int p_cache_index, const Vector2i &p_size) const;
virtual void clear_textures(int p_cache_index, const Vector2i &p_size);
virtual void remove_texture(int p_cache_index, const Vector2i &p_size, int p_texture_index);
virtual void set_texture_image(int p_cache_index, const Vector2i &p_size, int p_texture_index, const Ref<Image> &p_image);
virtual Ref<Image> get_texture_image(int p_cache_index, const Vector2i &p_size, int p_texture_index) const;
virtual void set_texture_offsets(int p_cache_index, const Vector2i &p_size, int p_texture_index, const PackedInt32Array &p_offset);
virtual PackedInt32Array get_texture_offsets(int p_cache_index, const Vector2i &p_size, int p_texture_index) const;
virtual Array get_glyph_list(int p_cache_index, const Vector2i &p_size) const;
virtual void clear_glyphs(int p_cache_index, const Vector2i &p_size);
virtual void remove_glyph(int p_cache_index, const Vector2i &p_size, int32_t p_glyph);
virtual void set_glyph_advance(int p_cache_index, int p_size, int32_t p_glyph, const Vector2 &p_advance);
virtual Vector2 get_glyph_advance(int p_cache_index, int p_size, int32_t p_glyph) const;
virtual void set_glyph_offset(int p_cache_index, const Vector2i &p_size, int32_t p_glyph, const Vector2 &p_offset);
virtual Vector2 get_glyph_offset(int p_cache_index, const Vector2i &p_size, int32_t p_glyph) const;
virtual void set_glyph_size(int p_cache_index, const Vector2i &p_size, int32_t p_glyph, const Vector2 &p_gl_size);
virtual Vector2 get_glyph_size(int p_cache_index, const Vector2i &p_size, int32_t p_glyph) const;
virtual void set_glyph_uv_rect(int p_cache_index, const Vector2i &p_size, int32_t p_glyph, const Rect2 &p_uv_rect);
virtual Rect2 get_glyph_uv_rect(int p_cache_index, const Vector2i &p_size, int32_t p_glyph) const;
virtual void set_glyph_texture_idx(int p_cache_index, const Vector2i &p_size, int32_t p_glyph, int p_texture_idx);
virtual int get_glyph_texture_idx(int p_cache_index, const Vector2i &p_size, int32_t p_glyph) const;
virtual Array get_kerning_list(int p_cache_index, int p_size) const;
virtual void clear_kerning_map(int p_cache_index, int p_size);
virtual void remove_kerning(int p_cache_index, int p_size, const Vector2i &p_glyph_pair);
virtual void set_kerning(int p_cache_index, int p_size, const Vector2i &p_glyph_pair, const Vector2 &p_kerning);
virtual Vector2 get_kerning(int p_cache_index, int p_size, const Vector2i &p_glyph_pair) const;
virtual void render_range(int p_cache_index, const Vector2i &p_size, char32_t p_start, char32_t p_end);
virtual void render_glyph(int p_cache_index, const Vector2i &p_size, int32_t p_index);
virtual RID get_cache_rid(int p_cache_index) const;
// Language/script support override.
virtual bool is_language_supported(const String &p_language) const;
virtual void set_language_support_override(const String &p_language, bool p_supported);
virtual bool get_language_support_override(const String &p_language) const;
virtual void remove_language_support_override(const String &p_language);
virtual Vector<String> get_language_support_overrides() const;
virtual bool is_script_supported(const String &p_script) const;
virtual void set_script_support_override(const String &p_script, bool p_supported);
virtual bool get_script_support_override(const String &p_script) const;
virtual void remove_script_support_override(const String &p_script);
virtual Vector<String> get_script_support_overrides() const;
virtual void set_opentype_feature_overrides(const Dictionary &p_overrides);
virtual Dictionary get_opentype_feature_overrides() const;
// Base font properties.
virtual bool has_char(char32_t p_char) const;
virtual String get_supported_chars() const;
virtual int32_t get_glyph_index(int p_size, char32_t p_char, char32_t p_variation_selector = 0x0000) const;
virtual Dictionary get_supported_feature_list() const;
virtual Dictionary get_supported_variation_list() const;
FontData();
~FontData();
};
/*************************************************************************/
class TextLine;
class TextParagraph;
class Font : public Resource {
GDCLASS(Font, Resource);
// Shaped string cache.
mutable LRUCache<uint64_t, Ref<TextLine>> cache;
mutable LRUCache<uint64_t, Ref<TextParagraph>> cache_wrap;
// Font data cache.
Vector<Ref<FontData>> data;
mutable Vector<RID> rids;
// Font config.
Dictionary variation_coordinates;
int spacing_bottom = 0;
int spacing_top = 0;
_FORCE_INLINE_ void _data_changed();
_FORCE_INLINE_ void _ensure_rid(int p_index) const; // Find or create cache record.
protected:
static void _bind_methods();
bool _set(const StringName &p_name, const Variant &p_value);
bool _get(const StringName &p_name, Variant &r_ret) const;
void _get_property_list(List<PropertyInfo> *p_list) const;
virtual void reset_state() override;
public:
static const int DEFAULT_FONT_SIZE = 16;
Dictionary get_feature_list() const;
// Font data.
virtual void add_data(const Ref<FontData> &p_data);
virtual void set_data(int p_idx, const Ref<FontData> &p_data);
virtual int get_data_count() const;
virtual Ref<FontData> get_data(int p_idx) const;
virtual RID get_data_rid(int p_idx) const;
virtual void clear_data();
virtual void remove_data(int p_idx);
// Font configuration.
virtual void set_variation_coordinates(const Dictionary &p_variation_coordinates);
virtual Dictionary get_variation_coordinates() const;
virtual void set_spacing(TextServer::SpacingType p_spacing, int p_value);
virtual int get_spacing(TextServer::SpacingType p_spacing) const;
// Font metrics.
virtual real_t get_height(int p_size = DEFAULT_FONT_SIZE) const;
virtual real_t get_ascent(int p_size = DEFAULT_FONT_SIZE) const;
virtual real_t get_descent(int p_size = DEFAULT_FONT_SIZE) const;
virtual real_t get_underline_position(int p_size = DEFAULT_FONT_SIZE) const;
virtual real_t get_underline_thickness(int p_size = DEFAULT_FONT_SIZE) const;
// Drawing string.
virtual Size2 get_string_size(const String &p_text, int p_size = DEFAULT_FONT_SIZE, HorizontalAlignment p_alignment = HORIZONTAL_ALIGNMENT_LEFT, float p_width = -1, uint16_t p_flags = TextServer::JUSTIFICATION_KASHIDA | TextServer::JUSTIFICATION_WORD_BOUND) const;
virtual Size2 get_multiline_string_size(const String &p_text, float p_width = -1, int p_size = DEFAULT_FONT_SIZE, uint16_t p_flags = TextServer::BREAK_MANDATORY | TextServer::BREAK_WORD_BOUND) const;
virtual void draw_string(RID p_canvas_item, const Point2 &p_pos, const String &p_text, HorizontalAlignment p_alignment = HORIZONTAL_ALIGNMENT_LEFT, float p_width = -1, int p_size = DEFAULT_FONT_SIZE, const Color &p_modulate = Color(1, 1, 1), int p_outline_size = 0, const Color &p_outline_modulate = Color(1, 1, 1, 0), uint16_t p_flags = TextServer::JUSTIFICATION_KASHIDA | TextServer::JUSTIFICATION_WORD_BOUND) const;
virtual void draw_multiline_string(RID p_canvas_item, const Point2 &p_pos, const String &p_text, HorizontalAlignment p_alignment = HORIZONTAL_ALIGNMENT_LEFT, float p_width = -1, int p_max_lines = -1, int p_size = DEFAULT_FONT_SIZE, const Color &p_modulate = Color(1, 1, 1), int p_outline_size = 0, const Color &p_outline_modulate = Color(1, 1, 1, 0), uint16_t p_flags = TextServer::BREAK_MANDATORY | TextServer::BREAK_WORD_BOUND | TextServer::JUSTIFICATION_KASHIDA | TextServer::JUSTIFICATION_WORD_BOUND) const;
// Helper functions.
virtual bool has_char(char32_t p_char) const;
virtual String get_supported_chars() const;
// Drawing char.
virtual Size2 get_char_size(char32_t p_char, char32_t p_next = 0, int p_size = DEFAULT_FONT_SIZE) const;
virtual real_t draw_char(RID p_canvas_item, const Point2 &p_pos, char32_t p_char, char32_t p_next = 0, int p_size = DEFAULT_FONT_SIZE, const Color &p_modulate = Color(1, 1, 1), int p_outline_size = 0, const Color &p_outline_modulate = Color(1, 1, 1, 0)) const;
Vector<RID> get_rids() const;
void update_changes();
Font();
~Font();
};
#endif /* FONT_H */
|