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Font and text handling is very much part of user interface and at least partially independent of rendering, but does fit it better with GUI than genera UI (ie, both graphics and text mode), thus libQFgui as well as libQFui are built in the ui directory. The existing font related builtins have been moved into the ruamoko client library.
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
/*
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r_text.h
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Renderer text management
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Copyright (C) 2022 Bill Currie <bill@taniwha.org>
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Author: Bill Currie <bill@taniwha.org>
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Date: 2022/9/4
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifndef __r_text_h
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#define __r_text_h
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#include <hb.h>
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#include <hb-ft.h>
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#include "QF/darray.h"
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#include "QF/ecs/component.h"
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typedef struct script_component_s {
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hb_language_t language;
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hb_script_t script;
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hb_direction_t direction;
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} script_component_t;
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typedef struct glyph_component_s {
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int id;
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int x, y;
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} glyph_component_t;
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typedef struct rtext_s {
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const char *text;
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const char *language;
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hb_script_t script;
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hb_direction_t direction;
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} rtext_t;
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typedef struct r_hb_featureset_s DARRAY_TYPE (hb_feature_t) r_hb_featureset_t;
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struct font_s;
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struct rglyph_s;
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typedef void rtext_render_t (uint32_t glyphid, int x, int y, void *data);
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typedef struct rshaper_s {
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struct font_s *rfont;
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hb_font_t *font;
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hb_buffer_t *buffer;
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r_hb_featureset_t features;
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} rshaper_t;
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extern hb_feature_t LigatureOff;
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extern hb_feature_t LigatureOn;
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extern hb_feature_t KerningOff;
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extern hb_feature_t KerningOn;
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extern hb_feature_t CligOff;
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extern hb_feature_t CligOn;
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rshaper_t *RText_NewShaper (struct font_s *font);
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void RText_DeleteShaper (rshaper_t *shaper);
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void RText_AddFeature (rshaper_t *shaper, hb_feature_t feature);
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void RText_ShapeText (rshaper_t *shaper, rtext_t *text);
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void RText_RenderText (rshaper_t *shaper, rtext_t *text, int x, int y,
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rtext_render_t *render, void *data);
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#endif//__r_text_h
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