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 /** Resolution (dots per inch) of the device. */
78 /** Correction of functions to manipulate the device. */
79 MDeviceDriver *driver;
81 /** List of font drivers. */
82 MPlist *font_driver_list;
84 /** List of realized fonts. */
85 MPlist *realized_font_list;
87 /** List of realized faces. */
88 MPlist *realized_face_list;
90 /** List of realized fontsets. */
91 MPlist *realized_fontset_list;
94 #define M_CHECK_WRITABLE(frame, err, ret) \
96 if (! ((frame)->device_type & MDEVICE_SUPPORT_OUTPUT)) \
97 MERROR ((err), (ret)); \
100 #define M_CHECK_READABLE(frame, err, ret) \
102 if (! ((frame)->device_type & MDEVICE_SUPPORT_INPUT)) \
103 MERROR ((err), (ret)); \
118 GLYPH_CATEGORY_NORMAL,
119 GLYPH_CATEGORY_MODIFIER,
120 GLYPH_CATEGORY_FORMATTER
128 MRealizedFace *rface;
129 short width, ascent, descent, lbearing, rbearing;
131 unsigned enabled : 1;
132 unsigned left_padding : 1;
133 unsigned right_padding : 1;
134 unsigned otf_encoded : 1;
135 unsigned bidi_level : 6;
136 enum glyph_category category : 2;
137 enum glyph_type type : 3;
151 short width, height, ascent, descent;
152 short physical_ascent, physical_descent, lbearing, rbearing;
153 short text_ascent, text_descent, line_ascent, line_descent;
154 int indent, width_limit;
156 /* Copied for <control>.anti_alias but never set if the frame's
157 depth is less than 8. */
158 unsigned anti_alias : 1;
160 MDrawControl control;
162 struct MGlyphString *next, *top;
165 #define MGLYPH(idx) \
166 (gstring->glyphs + ((idx) >= 0 ? (idx) : (gstring->used + (idx))))
168 #define GLYPH_INDEX(g) \
169 ((g) - gstring->glyphs)
171 #define INIT_GLYPH(g) \
172 (memset (&(g), 0, sizeof (g)))
174 #define APPEND_GLYPH(gstring, g) \
175 MLIST_APPEND1 ((gstring), glyphs, (g), MERROR_DRAW)
177 #define INSERT_GLYPH(gstring, at, g) \
179 MLIST_INSERT1 ((gstring), glyphs, (at), 1, MERROR_DRAW); \
180 (gstring)->glyphs[at] = g; \
183 #define DELETE_GLYPH(gstring, at) \
185 MLIST_DELETE1 (gstring, glyphs, at, 1); \
188 #define REPLACE_GLYPHS(gstring, from, to, len) \
190 int newlen = (gstring)->used - (from); \
191 int diff = newlen - (len); \
194 MLIST_DELETE1 (gstring, glyphs, (to) + newlen, -diff); \
196 MLIST_INSERT1 ((gstring), glyphs, (to) + (len), diff, MERROR_DRAW); \
197 memmove ((gstring)->glyphs + to, (gstring)->glyphs + (from + diff), \
198 (sizeof (MGlyph)) * newlen); \
199 (gstring)->used -= newlen; \
202 #define MAKE_COMBINING_CODE(base_y, base_x, add_y, add_x, off_y, off_x) \
210 #define COMBINING_CODE_OFF_Y(code) (((code) >> 16) & 0xFF)
211 #define COMBINING_CODE_OFF_X(code) (((code) >> 8) & 0xFF)
212 #define COMBINING_CODE_BASE_X(code) (((code) >> 6) & 0x3)
213 #define COMBINING_CODE_BASE_Y(code) (((code) >> 4) & 0x3)
214 #define COMBINING_CODE_ADD_X(code) (((code) >> 2) & 0x3)
215 #define COMBINING_CODE_ADD_Y(code) ((code) & 0x3)
217 #define MAKE_COMBINING_CODE_BY_CLASS(class) (0x1000000 | class)
219 #define COMBINING_BY_CLASS_P(code) ((code) & 0x1000000)
221 #define COMBINING_CODE_CLASS(code) ((code) & 0xFFFFFF)
223 #define MAKE_PRECOMPUTED_COMBINDING_CODE() (0x2000000)
225 #define COMBINING_PRECOMPUTED_P(code) ((code) & 0x2000000)
227 typedef struct MGlyphString MGlyphString;
236 void (*close) (MFrame *frame);
237 void *(*get_prop) (MFrame *frame, MSymbol key);
238 void (*realize_face) (MRealizedFace *rface);
239 void (*free_realized_face) (MRealizedFace *rface);
240 void (*fill_space) (MFrame *frame, MDrawWindow win,
241 MRealizedFace *rface, int reverse,
242 int x, int y, int width, int height,
244 void (*draw_empty_boxes) (MDrawWindow win, int x, int y,
245 MGlyphString *gstring,
246 MGlyph *from, MGlyph *to,
247 int reverse, MDrawRegion region);
248 void (*draw_hline) (MFrame *frame, MDrawWindow win,
249 MGlyphString *gstring,
250 MRealizedFace *rface, int reverse,
251 int x, int y, int width, MDrawRegion region);
252 void (*draw_box) (MFrame *frame, MDrawWindow win,
253 MGlyphString *gstring,
254 MGlyph *g, int x, int y, int width,
257 void (*draw_points) (MFrame *frame, MDrawWindow win,
258 MRealizedFace *rface,
259 int intensity, MDrawPoint *points, int num,
261 MDrawRegion (*region_from_rect) (MDrawMetric *rect);
262 void (*union_rect_with_region) (MDrawRegion region, MDrawMetric *rect);
263 void (*intersect_region) (MDrawRegion region1, MDrawRegion region2);
264 void (*region_add_rect) (MDrawRegion region, MDrawMetric *rect);
265 void (*region_to_rect) (MDrawRegion region, MDrawMetric *rect);
266 void (*free_region) (MDrawRegion region);
267 void (*dump_region) (MDrawRegion region);
268 MDrawWindow (*create_window) (MFrame *frame, MDrawWindow parent);
269 void (*destroy_window) (MFrame *frame, MDrawWindow win);
270 void (*map_window) (MFrame *frame, MDrawWindow win);
271 void (*unmap_window) (MFrame *frame, MDrawWindow win);
272 void (*window_geometry) (MFrame *frame, MDrawWindow win,
273 MDrawWindow parent, MDrawMetric *geometry);
274 void (*adjust_window) (MFrame *frame, MDrawWindow win,
275 MDrawMetric *current, MDrawMetric *new);
276 MSymbol (*parse_event) (MFrame *frame, void *arg, int *modifiers);
279 extern MSymbol Mlatin;
283 extern int mfont__init ();
284 extern void mfont__fini ();
286 extern int mface__init ();
287 extern void mface__fini ();
289 extern int mdraw__init ();
290 extern void mdraw__fini ();
292 extern int mfont__fontset_init ();
293 extern void mfont__fontset_fini ();
295 extern int minput__win_init ();
296 extern void minput__win_fini ();
298 #endif /* _M_INTERNAL_GUI_H */