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 typedef struct MGlyphString MGlyphString;
221 typedef struct MFontDriver MFontDriver;
230 void (*close) (MFrame *frame);
231 void *(*get_prop) (MFrame *frame, MSymbol key);
232 void (*realize_face) (MRealizedFace *rface);
233 void (*free_realized_face) (MRealizedFace *rface);
234 void (*fill_space) (MFrame *frame, MDrawWindow win,
235 MRealizedFace *rface, int reverse,
236 int x, int y, int width, int height,
238 void (*draw_empty_boxes) (MDrawWindow win, int x, int y,
239 MGlyphString *gstring,
240 MGlyph *from, MGlyph *to,
241 int reverse, MDrawRegion region);
242 void (*draw_hline) (MFrame *frame, MDrawWindow win,
243 MGlyphString *gstring,
244 MRealizedFace *rface, int reverse,
245 int x, int y, int width, MDrawRegion region);
246 void (*draw_box) (MFrame *frame, MDrawWindow win,
247 MGlyphString *gstring,
248 MGlyph *g, int x, int y, int width,
251 void (*draw_points) (MFrame *frame, MDrawWindow win,
252 MRealizedFace *rface,
253 int intensity, MDrawPoint *points, int num,
255 MDrawRegion (*region_from_rect) (MDrawMetric *rect);
256 void (*union_rect_with_region) (MDrawRegion region, MDrawMetric *rect);
257 void (*intersect_region) (MDrawRegion region1, MDrawRegion region2);
258 void (*region_add_rect) (MDrawRegion region, MDrawMetric *rect);
259 void (*region_to_rect) (MDrawRegion region, MDrawMetric *rect);
260 void (*free_region) (MDrawRegion region);
261 void (*dump_region) (MDrawRegion region);
262 MDrawWindow (*create_window) (MFrame *frame, MDrawWindow parent);
263 void (*destroy_window) (MFrame *frame, MDrawWindow win);
264 void (*map_window) (MFrame *frame, MDrawWindow win);
265 void (*unmap_window) (MFrame *frame, MDrawWindow win);
266 void (*window_geometry) (MFrame *frame, MDrawWindow win,
267 MDrawWindow parent, MDrawMetric *geometry);
268 void (*adjust_window) (MFrame *frame, MDrawWindow win,
269 MDrawMetric *current, MDrawMetric *new);
270 MSymbol (*parse_event) (MFrame *frame, void *arg, int *modifiers);
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 */