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;
141 short width, height, ascent, descent;
142 short physical_ascent, physical_descent, lbearing, rbearing;
143 short text_ascent, text_descent, line_ascent, line_descent;
144 int indent, width_limit;
146 /* Copied for <control>.anti_alias but never set if the frame's
147 depth is less than 8. */
148 unsigned anti_alias : 1;
150 MDrawControl control;
152 struct MGlyphString *next, *top;
155 #define MGLYPH(idx) \
156 (gstring->glyphs + ((idx) >= 0 ? (idx) : (gstring->used + (idx))))
158 #define GLYPH_INDEX(g) \
159 ((g) - gstring->glyphs)
161 #define INIT_GLYPH(g) \
162 (memset (&(g), 0, sizeof (g)))
164 #define APPEND_GLYPH(gstring, g) \
165 MLIST_APPEND1 ((gstring), glyphs, (g), MERROR_DRAW)
167 #define INSERT_GLYPH(gstring, at, g) \
169 MLIST_INSERT1 ((gstring), glyphs, (at), 1, MERROR_DRAW); \
170 (gstring)->glyphs[at] = g; \
173 #define DELETE_GLYPH(gstring, at) \
175 MLIST_DELETE1 (gstring, glyphs, at, 1); \
178 #define REPLACE_GLYPHS(gstring, from, to, len) \
180 int newlen = (gstring)->used - (from); \
181 int diff = newlen - (len); \
184 MLIST_DELETE1 (gstring, glyphs, (to) + newlen, -diff); \
186 MLIST_INSERT1 ((gstring), glyphs, (to) + (len), diff, MERROR_DRAW); \
187 memmove ((gstring)->glyphs + to, (gstring)->glyphs + (from + diff), \
188 (sizeof (MGlyph)) * newlen); \
189 (gstring)->used -= newlen; \
192 #define MAKE_COMBINING_CODE(base_y, base_x, add_y, add_x, off_y, off_x) \
200 #define COMBINING_CODE_OFF_Y(code) (((code) >> 16) & 0xFF)
201 #define COMBINING_CODE_OFF_X(code) (((code) >> 8) & 0xFF)
202 #define COMBINING_CODE_BASE_X(code) (((code) >> 6) & 0x3)
203 #define COMBINING_CODE_BASE_Y(code) (((code) >> 4) & 0x3)
204 #define COMBINING_CODE_ADD_X(code) (((code) >> 2) & 0x3)
205 #define COMBINING_CODE_ADD_Y(code) ((code) & 0x3)
207 #define MAKE_COMBINING_CODE_BY_CLASS(class) (0x1000000 | class)
209 #define COMBINING_BY_CLASS_P(code) ((code) & 0x1000000)
211 #define COMBINING_CODE_CLASS(code) ((code) & 0xFFFFFF)
213 #define MAKE_PRECOMPUTED_COMBINDING_CODE() (0x2000000)
215 #define COMBINING_PRECOMPUTED_P(code) ((code) & 0x2000000)
217 typedef struct MGlyphString MGlyphString;
219 typedef struct MFontDriver MFontDriver;
228 void (*close) (MFrame *frame);
229 void *(*get_prop) (MFrame *frame, MSymbol key);
230 void (*realize_face) (MRealizedFace *rface);
231 void (*free_realized_face) (MRealizedFace *rface);
232 void (*fill_space) (MFrame *frame, MDrawWindow win,
233 MRealizedFace *rface, int reverse,
234 int x, int y, int width, int height,
236 void (*draw_empty_boxes) (MDrawWindow win, int x, int y,
237 MGlyphString *gstring,
238 MGlyph *from, MGlyph *to,
239 int reverse, MDrawRegion region);
240 void (*draw_hline) (MFrame *frame, MDrawWindow win,
241 MGlyphString *gstring,
242 MRealizedFace *rface, int reverse,
243 int x, int y, int width, MDrawRegion region);
244 void (*draw_box) (MFrame *frame, MDrawWindow win,
245 MGlyphString *gstring,
246 MGlyph *g, int x, int y, int width,
249 void (*draw_points) (MFrame *frame, MDrawWindow win,
250 MRealizedFace *rface,
251 int intensity, MDrawPoint *points, int num,
253 MDrawRegion (*region_from_rect) (MDrawMetric *rect);
254 void (*union_rect_with_region) (MDrawRegion region, MDrawMetric *rect);
255 void (*intersect_region) (MDrawRegion region1, MDrawRegion region2);
256 void (*region_add_rect) (MDrawRegion region, MDrawMetric *rect);
257 void (*region_to_rect) (MDrawRegion region, MDrawMetric *rect);
258 void (*free_region) (MDrawRegion region);
259 void (*dump_region) (MDrawRegion region);
260 MDrawWindow (*create_window) (MFrame *frame, MDrawWindow parent);
261 void (*destroy_window) (MFrame *frame, MDrawWindow win);
262 void (*map_window) (MFrame *frame, MDrawWindow win);
263 void (*unmap_window) (MFrame *frame, MDrawWindow win);
264 void (*window_geometry) (MFrame *frame, MDrawWindow win,
265 MDrawWindow parent, MDrawMetric *geometry);
266 void (*adjust_window) (MFrame *frame, MDrawWindow win,
267 MDrawMetric *current, MDrawMetric *new);
268 MSymbol (*parse_event) (MFrame *frame, void *arg, int *modifiers);
271 extern MSymbol Mlatin;
275 extern int mfont__init ();
276 extern void mfont__fini ();
278 extern int mface__init ();
279 extern void mface__fini ();
281 extern int mdraw__init ();
282 extern void mdraw__fini ();
284 extern int mfont__fontset_init ();
285 extern void mfont__fontset_fini ();
287 extern int minput__win_init ();
288 extern void minput__win_fini ();
290 #endif /* _M_INTERNAL_GUI_H */