1 /* internal-gui.h -- common header file for the internal GUI API.
2 Copyright (C) 2003, 2004
3 National Institute of Advanced Industrial Science and Technology (AIST)
4 Registration Number H15PRO112
6 This file is part of the m17n library.
8 The m17n library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public License
10 as published by the Free Software Foundation; either version 2.1 of
11 the License, or (at your option) any later version.
13 The m17n library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public
19 License along with the m17n library; if not, write to the Free
20 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
23 #ifndef _M_INTERNAL_GUI_H
24 #define _M_INTERNAL_GUI_H
28 MDEVICE_SUPPORT_OUTPUT = 1,
29 MDEVICE_SUPPORT_INPUT = 2
32 typedef struct MRealizedFont MRealizedFont;
33 typedef struct MRealizedFace MRealizedFace;
34 typedef struct MRealizedFontset MRealizedFontset;
35 typedef struct MDeviceDriver MDeviceDriver;
37 /** Information about a frame. */
43 MSymbol foreground, background, videomode;
47 /** The default face of the frame. */
50 /** The default realized face of the frame. */
53 /** The default width of one-char space. It is a width of SPACE
54 character of the default face. */
57 /** The default ascent and descent of a line. It is ascent and
58 descent of ASCII font of the default face. */
61 /** Initialized to 0 and incremented on each modification of a face
62 on which one of the realized faces is based. */
65 /** Pointer to device dependent information associated with the
69 /** The following members are set by "device_open" function of a
70 device dependent library. */
72 /** Logical OR of enum MDeviceType. */
75 /** Correction of functions to manipulate the device. */
76 MDeviceDriver *driver;
78 /** List of font drivers. */
79 MPlist *font_driver_list;
81 /** List of realized fonts. */
82 MPlist *realized_font_list;
84 /** List of realized faces. */
85 MPlist *realized_face_list;
87 /** List of realized fontsets. */
88 MPlist *realized_fontset_list;
91 #define M_CHECK_WRITABLE(frame, err, ret) \
93 if (! ((frame)->device_type & MDEVICE_SUPPORT_OUTPUT)) \
94 MERROR ((err), (ret)); \
97 #define M_CHECK_READABLE(frame, err, ret) \
99 if (! ((frame)->device_type & MDEVICE_SUPPORT_INPUT)) \
100 MERROR ((err), (ret)); \
117 MSymbol gsub_features;
118 MSymbol gpos_features;
127 MRealizedFace *rface;
128 short width, ascent, descent, lbearing, rbearing;
131 FontLayoutCmdOTF *otf_cmd;
133 unsigned enabled : 1;
134 unsigned left_padding : 1;
135 unsigned right_padding : 1;
136 unsigned otf_encoded : 1;
137 unsigned bidi_level : 6;
138 enum glyph_type type : 3;
153 short width, height, ascent, descent;
154 short physical_ascent, physical_descent, lbearing, rbearing;
155 short text_ascent, text_descent, line_ascent, line_descent;
156 int indent, width_limit;
158 /* Members to keep temporary data while layouting. */
159 short sub_width, sub_lbearing, sub_rbearing;
161 /* Copied for <control>.anti_alias but never set if the frame's
162 depth is less than 8. */
163 unsigned anti_alias : 1;
165 MDrawControl control;
169 struct MGlyphString *next, *top;
172 #define MGLYPH(idx) \
173 (gstring->glyphs + ((idx) >= 0 ? (idx) : (gstring->used + (idx))))
175 #define GLYPH_INDEX(g) \
176 ((g) - gstring->glyphs)
178 #define INIT_GLYPH(g) \
179 (memset (&(g), 0, sizeof (g)))
181 #define APPEND_GLYPH(gstring, g) \
182 MLIST_APPEND1 ((gstring), glyphs, (g), MERROR_DRAW)
184 #define INSERT_GLYPH(gstring, at, g) \
186 MLIST_INSERT1 ((gstring), glyphs, (at), 1, MERROR_DRAW); \
187 (gstring)->glyphs[at] = g; \
190 #define DELETE_GLYPH(gstring, at) \
192 MLIST_DELETE1 (gstring, glyphs, at, 1); \
195 #define REPLACE_GLYPHS(gstring, from, to, len) \
197 int newlen = (gstring)->used - (from); \
198 int diff = newlen - (len); \
201 MLIST_DELETE1 (gstring, glyphs, (to) + newlen, -diff); \
203 MLIST_INSERT1 ((gstring), glyphs, (to) + (len), diff, MERROR_DRAW); \
204 memmove ((gstring)->glyphs + to, (gstring)->glyphs + (from + diff), \
205 (sizeof (MGlyph)) * newlen); \
206 (gstring)->used -= newlen; \
209 #define MAKE_COMBINING_CODE(base_y, base_x, add_y, add_x, off_y, off_x) \
217 #define COMBINING_CODE_OFF_Y(code) (((code) >> 16) & 0xFF)
218 #define COMBINING_CODE_OFF_X(code) (((code) >> 8) & 0xFF)
219 #define COMBINING_CODE_BASE_X(code) (((code) >> 6) & 0x3)
220 #define COMBINING_CODE_BASE_Y(code) (((code) >> 4) & 0x3)
221 #define COMBINING_CODE_ADD_X(code) (((code) >> 2) & 0x3)
222 #define COMBINING_CODE_ADD_Y(code) ((code) & 0x3)
224 #define MAKE_COMBINING_CODE_BY_CLASS(class) (0x1000000 | class)
226 #define COMBINING_BY_CLASS_P(code) ((code) & 0x1000000)
228 #define COMBINING_CODE_CLASS(code) ((code) & 0xFFFFFF)
230 typedef struct MGlyphString MGlyphString;
232 typedef struct MFontDriver MFontDriver;
241 void (*close) (MFrame *frame);
242 void *(*get_prop) (MFrame *frame, MSymbol key);
243 void (*realize_face) (MRealizedFace *rface);
244 void (*free_realized_face) (MRealizedFace *rface);
245 void (*fill_space) (MFrame *frame, MDrawWindow win,
246 MRealizedFace *rface, int reverse,
247 int x, int y, int width, int height,
249 void (*draw_empty_boxes) (MDrawWindow win, int x, int y,
250 MGlyphString *gstring,
251 MGlyph *from, MGlyph *to,
252 int reverse, MDrawRegion region);
253 void (*draw_hline) (MFrame *frame, MDrawWindow win,
254 MGlyphString *gstring,
255 MRealizedFace *rface, int reverse,
256 int x, int y, int width, MDrawRegion region);
257 void (*draw_box) (MFrame *frame, MDrawWindow win,
258 MGlyphString *gstring,
259 MGlyph *g, int x, int y, int width,
262 void (*draw_points) (MFrame *frame, MDrawWindow win,
263 MRealizedFace *rface,
264 int intensity, MDrawPoint *points, int num,
266 MDrawRegion (*region_from_rect) (MDrawMetric *rect);
267 void (*union_rect_with_region) (MDrawRegion region, MDrawMetric *rect);
268 void (*intersect_region) (MDrawRegion region1, MDrawRegion region2);
269 void (*region_add_rect) (MDrawRegion region, MDrawMetric *rect);
270 void (*region_to_rect) (MDrawRegion region, MDrawMetric *rect);
271 void (*free_region) (MDrawRegion region);
272 void (*dump_region) (MDrawRegion region);
273 MDrawWindow (*create_window) (MFrame *frame, MDrawWindow parent);
274 void (*destroy_window) (MFrame *frame, MDrawWindow win);
275 void (*map_window) (MFrame *frame, MDrawWindow win);
276 void (*unmap_window) (MFrame *frame, MDrawWindow win);
277 void (*window_geometry) (MFrame *frame, MDrawWindow win,
278 MDrawWindow parent, MDrawMetric *geometry);
279 void (*adjust_window) (MFrame *frame, MDrawWindow win,
280 MDrawMetric *current, MDrawMetric *new);
281 MSymbol (*parse_event) (MFrame *frame, void *arg, int *modifiers);
286 extern MSymbol Mfreetype;
288 extern int mfont__init ();
289 extern void mfont__fini ();
291 extern int mface__init ();
292 extern void mface__fini ();
294 extern int mdraw__init ();
295 extern void mdraw__fini ();
297 extern int mfont__fontset_init ();
298 extern void mfont__fontset_fini ();
300 extern int minput__win_init ();
301 extern void minput__win_fini ();
303 #endif /* _M_INTERNAL_GUI_H */