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)); \
119 MRealizedFace *rface;
120 short width, ascent, descent, lbearing, rbearing;
122 unsigned enabled : 1;
123 unsigned left_padding : 1;
124 unsigned right_padding : 1;
125 unsigned otf_encoded : 1;
126 unsigned bidi_level : 6;
127 enum glyph_type type : 3;
142 short width, height, ascent, descent;
143 short physical_ascent, physical_descent, lbearing, rbearing;
144 short text_ascent, text_descent, line_ascent, line_descent;
145 int indent, width_limit;
147 /* Members to keep temporary data while layouting. */
148 short sub_width, sub_lbearing, sub_rbearing;
150 /* Copied for <control>.anti_alias but never set if the frame's
151 depth is less than 8. */
152 unsigned anti_alias : 1;
154 MDrawControl control;
158 struct MGlyphString *next, *top;
161 #define MGLYPH(idx) \
162 (gstring->glyphs + ((idx) >= 0 ? (idx) : (gstring->used + (idx))))
164 #define GLYPH_INDEX(g) \
165 ((g) - gstring->glyphs)
167 #define INIT_GLYPH(g) \
168 (memset (&(g), 0, sizeof (g)))
170 #define APPEND_GLYPH(gstring, g) \
171 MLIST_APPEND1 ((gstring), glyphs, (g), MERROR_DRAW)
173 #define INSERT_GLYPH(gstring, at, g) \
175 MLIST_INSERT1 ((gstring), glyphs, (at), 1, MERROR_DRAW); \
176 (gstring)->glyphs[at] = g; \
179 #define DELETE_GLYPH(gstring, at) \
181 MLIST_DELETE1 (gstring, glyphs, at, 1); \
184 #define REPLACE_GLYPHS(gstring, from, to, len) \
186 int newlen = (gstring)->used - (from); \
187 int diff = newlen - (len); \
190 MLIST_DELETE1 (gstring, glyphs, (to) + newlen, -diff); \
192 MLIST_INSERT1 ((gstring), glyphs, (to) + (len), diff, MERROR_DRAW); \
193 memmove ((gstring)->glyphs + to, (gstring)->glyphs + (from + diff), \
194 (sizeof (MGlyph)) * newlen); \
195 (gstring)->used -= newlen; \
198 #define MAKE_COMBINING_CODE(base_y, base_x, add_y, add_x, off_y, off_x) \
206 #define COMBINING_CODE_OFF_Y(code) (((code) >> 16) & 0xFF)
207 #define COMBINING_CODE_OFF_X(code) (((code) >> 8) & 0xFF)
208 #define COMBINING_CODE_BASE_X(code) (((code) >> 6) & 0x3)
209 #define COMBINING_CODE_BASE_Y(code) (((code) >> 4) & 0x3)
210 #define COMBINING_CODE_ADD_X(code) (((code) >> 2) & 0x3)
211 #define COMBINING_CODE_ADD_Y(code) ((code) & 0x3)
213 #define MAKE_COMBINING_CODE_BY_CLASS(class) (0x1000000 | class)
215 #define COMBINING_BY_CLASS_P(code) ((code) & 0x1000000)
217 #define COMBINING_CODE_CLASS(code) ((code) & 0xFFFFFF)
219 #define MAKE_PRECOMPUTED_COMBINDING_CODE() (0x2000000)
221 #define COMBINING_PRECOMPUTED_P(code) ((code) & 0x2000000)
223 typedef struct MGlyphString MGlyphString;
225 typedef struct MFontDriver MFontDriver;
234 void (*close) (MFrame *frame);
235 void *(*get_prop) (MFrame *frame, MSymbol key);
236 void (*realize_face) (MRealizedFace *rface);
237 void (*free_realized_face) (MRealizedFace *rface);
238 void (*fill_space) (MFrame *frame, MDrawWindow win,
239 MRealizedFace *rface, int reverse,
240 int x, int y, int width, int height,
242 void (*draw_empty_boxes) (MDrawWindow win, int x, int y,
243 MGlyphString *gstring,
244 MGlyph *from, MGlyph *to,
245 int reverse, MDrawRegion region);
246 void (*draw_hline) (MFrame *frame, MDrawWindow win,
247 MGlyphString *gstring,
248 MRealizedFace *rface, int reverse,
249 int x, int y, int width, MDrawRegion region);
250 void (*draw_box) (MFrame *frame, MDrawWindow win,
251 MGlyphString *gstring,
252 MGlyph *g, int x, int y, int width,
255 void (*draw_points) (MFrame *frame, MDrawWindow win,
256 MRealizedFace *rface,
257 int intensity, MDrawPoint *points, int num,
259 MDrawRegion (*region_from_rect) (MDrawMetric *rect);
260 void (*union_rect_with_region) (MDrawRegion region, MDrawMetric *rect);
261 void (*intersect_region) (MDrawRegion region1, MDrawRegion region2);
262 void (*region_add_rect) (MDrawRegion region, MDrawMetric *rect);
263 void (*region_to_rect) (MDrawRegion region, MDrawMetric *rect);
264 void (*free_region) (MDrawRegion region);
265 void (*dump_region) (MDrawRegion region);
266 MDrawWindow (*create_window) (MFrame *frame, MDrawWindow parent);
267 void (*destroy_window) (MFrame *frame, MDrawWindow win);
268 void (*map_window) (MFrame *frame, MDrawWindow win);
269 void (*unmap_window) (MFrame *frame, MDrawWindow win);
270 void (*window_geometry) (MFrame *frame, MDrawWindow win,
271 MDrawWindow parent, MDrawMetric *geometry);
272 void (*adjust_window) (MFrame *frame, MDrawWindow win,
273 MDrawMetric *current, MDrawMetric *new);
274 MSymbol (*parse_event) (MFrame *frame, void *arg, int *modifiers);
277 extern MSymbol Mlatin;
281 extern int mfont__init ();
282 extern void mfont__fini ();
284 extern int mface__init ();
285 extern void mface__fini ();
287 extern int mdraw__init ();
288 extern void mdraw__fini ();
290 extern int mfont__fontset_init ();
291 extern void mfont__fontset_fini ();
293 extern int minput__win_init ();
294 extern void minput__win_fini ();
296 #endif /* _M_INTERNAL_GUI_H */