Mercurial > hg > xemacs-beta
annotate lwlib/lwlib-colors.c @ 4916:a6c778975d7d
split USE_XFT into HAVE_XFT/USE_XFT
-------------------- ChangeLog entries follow: --------------------
ChangeLog addition:
2010-02-01 Ben Wing <ben@xemacs.org>
* configure:
* configure.ac (TAB):
USE_XFT* -> HAVE_XFT*.
lwlib/ChangeLog addition:
2010-02-01 Ben Wing <ben@xemacs.org>
* lwlib-colors.c:
* lwlib-colors.h:
* lwlib-fonts.c:
* lwlib-fonts.h:
* xlwmenu.c:
* xlwmenu.c (xlwMenuResources):
* xlwmenu.c (x_xft_text_width):
* xlwmenu.c (label_button_draw):
* xlwmenu.c (push_button_size):
* xlwmenu.c (push_button_draw):
* xlwmenu.c (make_drawing_gcs):
* xlwmenu.c (extract_font_extents):
* xlwmenu.c (default_font_of_font_list):
* xlwmenu.c (XlwMenuInitialize):
* xlwmenu.c (XlwMenuDestroy):
* xlwmenu.c (XlwMenuSetValues):
* xlwmenuP.h:
* xlwmenuP.h (_XlwMenu_part):
* xlwtabs.c:
* xlwtabs.c (TabsInit):
* xlwtabs.c (TabsDestroy):
* xlwtabs.c (TabsSetValues):
* xlwtabs.c (DrawTab):
* xlwtabs.c (TabWidth):
* xlwtabs.c (TabsAllocFgGC):
* xlwtabs.c (TabsAllocGreyGC):
* xlwtabsP.h:
USE_XFT* -> HAVE_XFT*.
src/ChangeLog addition:
2010-02-01 Ben Wing <ben@xemacs.org>
* Makefile.in.in:
* compiler.h:
* config.h.in:
* console-x-impl.h:
* console-x-impl.h (struct x_frame):
* console-x-impl.h (FRAME_X_TOTALLY_VISIBLE_P):
* console-x.h:
* console-xlike-inc.h:
* emacs.c (main_1):
* faces.c (complex_vars_of_faces):
* font-mgr.h:
* frame-x.c (x_delete_frame):
* frame-x.c (x_update_frame_external_traits):
* glyphs-x.c (update_widget_face):
* inline.c:
* objects-x-impl.h:
* objects-x-impl.h (struct x_color_instance_data):
* objects-x-impl.h (struct x_font_instance_data):
* objects-x.c:
* objects-x.c (x_initialize_color_instance):
* objects-x.c (x_initialize_font_instance):
* objects-x.c (x_print_font_instance):
* objects-x.c (x_finalize_font_instance):
* objects-x.c (x_font_instance_truename):
* objects-x.c (vars_of_objects_x):
* objects-x.h:
USE_XFT* -> HAVE_XFT*. But in objects-xlike-inc.c and
redisplay-xlike-inc.c, continue to use USE_XFT, and define
it appropriately in console-xlike-inc.h when both HAVE_XFT
and THIS_IS_X -- even if HAVE_XFT, we don't want to enable
XFT code when included in a *-gtk.c file.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Mon, 01 Feb 2010 22:00:29 -0600 |
| parents | ad2f4ae9895b |
| children | 308d34e9f07d |
| rev | line source |
|---|---|
| 3094 | 1 /* Color data structures for X and Xft. |
| 2 | |
| 3 Copyright (C) 2004 Free Software Foundation, Inc. | |
| 4 | |
| 5 Author: Stephen J. Turnbull <stephen@xemacs.org> | |
| 6 Created: 24 Jul 2004 by Stephen J. Turnbull | |
| 7 | |
| 8 This file is part of XEmacs. | |
| 9 | |
| 10 XEmacs is free software; you can redistribute it and/or modify it | |
| 11 under the terms of the GNU General Public License as published by the | |
| 12 Free Software Foundation; either version 2, or (at your option) any | |
| 13 later version. | |
| 14 | |
| 15 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 18 for more details. | |
| 19 | |
| 20 You should have received a copy of the GNU General Public License | |
| 21 along with XEmacs; see the file COPYING. If not, write to | |
| 22 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 23 Boston, MA 02111-1307, USA. */ | |
| 24 | |
| 25 /* Synched up with: Not in GNU Emacs. */ | |
| 26 | |
| 27 #include <config.h> | |
| 28 #include <limits.h> /* for ULONG_MAX */ | |
| 29 #include <stdlib.h> /* for malloc() */ | |
| 30 #include <stdio.h> | |
| 31 #include <X11/Xlib.h> | |
| 32 #include <X11/IntrinsicP.h> | |
| 33 #include <X11/ShellP.h> /* for ShellWidget */ | |
| 34 #include "lwlib-colors.h" | |
| 35 | |
| 36 static int debug_colors = 1; | |
| 37 | |
| 38 #ifdef __cplusplus | |
| 39 #define X_CLASSFIELD c_class | |
| 40 #else | |
| 41 #define X_CLASSFIELD class | |
| 42 #endif | |
| 43 | |
| 44 #define MINL(x,y) ((((unsigned long) (x)) < ((unsigned long) (y))) \ | |
| 45 ? ((unsigned long) (x)) : ((unsigned long) (y))) | |
| 46 | |
| 47 /* WIDGET is an Xt widget, VISUAL and DEPTH are return values */ | |
| 48 void | |
| 49 visual_info_from_widget (Widget widget, Visual **visual, int *depth) | |
| 50 { | |
| 51 /* grab the visual and depth from the nearest shell ancestor */ | |
| 52 Widget p = XtParent(widget); | |
| 53 | |
| 54 *visual = CopyFromParent; | |
| 55 *depth = -1; | |
| 56 while (*visual == CopyFromParent && p) | |
| 57 { | |
| 58 if (XtIsShell(p)) | |
| 59 { | |
| 60 *visual = ((ShellWidget)p)->shell.visual; | |
| 61 *depth = p->core.depth; | |
| 62 } | |
| 63 p = XtParent(p); | |
| 64 } | |
| 65 if (*visual == CopyFromParent || !*visual) | |
| 66 { | |
| 67 if (debug_colors > 1) | |
| 68 fprintf (stderr, "\nvisual_info_from_widget:" | |
| 69 " failed, using DefaultVisualOfScreen"); | |
| 70 *visual = DefaultVisualOfScreen (XtScreen (widget)); | |
| 71 *depth = DefaultDepthOfScreen (XtScreen (widget)); | |
| 72 } | |
| 73 else if (debug_colors > 1) | |
| 74 fprintf (stderr, "\nvisual_info_from_widget: succeeded"); | |
| 75 } | |
| 76 | |
| 77 /* Do we need all this hair on modern hardware? */ | |
| 78 | |
| 79 /* Replacement for XAllocColor() that tries to return the nearest | |
| 80 available color if the colormap is full. Original was from FSFmacs, | |
| 81 but rewritten by Jareth Hein <jareth@camelot-soft.com> 97/11/25 | |
| 82 Modified by Lee Kindness <lkindness@csl.co.uk> 31/08/99 to handle previous | |
| 83 total failure which was due to a read/write colorcell being the nearest | |
| 84 match - tries the next nearest... | |
| 85 | |
| 86 Return value is 1 for normal success, 2 for nearest color success, | |
| 87 3 for Non-deallocable success. */ | |
| 88 int | |
| 89 x_allocate_nearest_color (Display *display, Colormap colormap, | |
| 90 Visual *visual, XColor *color_def) | |
| 91 { | |
| 92 int status; | |
| 93 | |
| 94 /* #### [[Apparently this is often called with data derived from a widget | |
| 95 with no ShellWidget ancestor, or before the shell has a visual. | |
| 96 Currently this recovery code is in xlwmenu.c and xlwscrollbar.c, but | |
| 97 likely should come here.]] | |
| 98 I suspect the problem is that the visual-tracing code was improperly | |
| 99 written, missing a level of indirection. | |
| 100 CopyFromParent == NULL in XFree86/Darwin. | |
| 101 */ | |
| 102 if (visual == CopyFromParent || !visual) | |
| 103 { | |
| 104 Screen *screen = DefaultScreenOfDisplay (display); | |
| 105 fprintf (stderr, "\nx_allocate_nearest_color: bad visual (%08lx)", | |
| 106 (unsigned long) visual); | |
| 107 visual = DefaultVisualOfScreen (screen); | |
| 108 } | |
| 109 | |
| 110 if (visual->X_CLASSFIELD == DirectColor || visual->X_CLASSFIELD == TrueColor) | |
| 111 { | |
| 112 if (XAllocColor (display, colormap, color_def) != 0) | |
| 113 { | |
| 114 status = 1; | |
| 115 } | |
| 116 else | |
| 117 { | |
| 118 /* We're dealing with a TrueColor/DirectColor visual, so play games | |
| 119 with the RGB values in the XColor struct. */ | |
| 120 /* #### JH: I'm not sure how a call to XAllocColor can fail in a | |
| 121 TrueColor or DirectColor visual, so I will just reformat the | |
| 122 request to match the requirements of the visual, and re-issue | |
| 123 the request. If this fails for anybody, I wanna know about it | |
| 124 so I can come up with a better plan */ | |
| 125 | |
| 126 unsigned long rshift,gshift,bshift,rbits,gbits,bbits,junk; | |
| 127 junk = visual->red_mask; | |
| 128 rshift = 0; | |
| 129 while ((junk & 0x1) == 0) { | |
| 130 junk = junk >> 1; | |
| 131 rshift ++; | |
| 132 } | |
| 133 rbits = 0; | |
| 134 while (junk != 0) { | |
| 135 junk = junk >> 1; | |
| 136 rbits++; | |
| 137 } | |
| 138 junk = visual->green_mask; | |
| 139 gshift = 0; | |
| 140 while ((junk & 0x1) == 0) { | |
| 141 junk = junk >> 1; | |
| 142 gshift ++; | |
| 143 } | |
| 144 gbits = 0; | |
| 145 while (junk != 0) { | |
| 146 junk = junk >> 1; | |
| 147 gbits++; | |
| 148 } | |
| 149 junk = visual->blue_mask; | |
| 150 bshift = 0; | |
| 151 while ((junk & 0x1) == 0) { | |
| 152 junk = junk >> 1; | |
| 153 bshift ++; | |
| 154 } | |
| 155 bbits = 0; | |
| 156 while (junk != 0) { | |
| 157 junk = junk >> 1; | |
| 158 bbits++; | |
| 159 } | |
| 160 | |
| 161 color_def->red = color_def->red >> (16 - rbits); | |
| 162 color_def->green = color_def->green >> (16 - gbits); | |
| 163 color_def->blue = color_def->blue >> (16 - bbits); | |
| 164 if (XAllocColor (display, colormap, color_def) != 0) | |
| 165 status = 1; | |
| 166 else | |
| 167 { | |
| 168 int rd, gr, bl; | |
| 169 /* #### JH: I'm punting here, knowing that doing this will at | |
| 170 least draw the color correctly. However, unless we convert | |
| 171 all of the functions that allocate colors (graphics | |
| 172 libraries, etc) to use this function doing this is very | |
| 173 likely to cause problems later... */ | |
| 174 | |
| 175 if (rbits > 8) | |
| 176 rd = color_def->red << (rbits - 8); | |
| 177 else | |
| 178 rd = color_def->red >> (8 - rbits); | |
| 179 if (gbits > 8) | |
| 180 gr = color_def->green << (gbits - 8); | |
| 181 else | |
| 182 gr = color_def->green >> (8 - gbits); | |
| 183 if (bbits > 8) | |
| 184 bl = color_def->blue << (bbits - 8); | |
| 185 else | |
| 186 bl = color_def->blue >> (8 - bbits); | |
| 187 color_def->pixel = (rd << rshift) | (gr << gshift) | (bl << | |
| 188 bshift); | |
| 189 status = 3; | |
| 190 } | |
| 191 } | |
| 192 } | |
| 193 else | |
| 194 { | |
| 195 XColor *cells = NULL; | |
| 196 /* JH: I can't believe there's no way to go backwards from a | |
| 197 colormap ID and get its visual and number of entries, but X | |
| 198 apparently isn't built that way... */ | |
| 199 int no_cells = visual->map_entries; | |
| 200 status = 0; | |
| 201 | |
| 202 if (XAllocColor (display, colormap, color_def) != 0) | |
| 203 status = 1; | |
| 204 else while( status != 2 ) | |
| 205 { | |
| 206 /* If we got to this point, the colormap is full, so we're | |
| 207 going to try and get the next closest color. The algorithm used | |
| 208 is a least-squares matching, which is what X uses for closest | |
| 209 color matching with StaticColor visuals. */ | |
| 210 int nearest; | |
| 211 long nearest_delta, trial_delta; | |
| 212 int x; | |
| 213 | |
| 214 if( cells == NULL ) | |
| 215 { | |
| 216 /* #### this could be annoyingly slow | |
| 217 tell me again why lwlib can't use alloca & friends? */ | |
| 218 cells = (XColor *) malloc (sizeof(XColor)*no_cells); | |
| 219 for (x = 0; x < no_cells; x++) | |
| 220 cells[x].pixel = x; | |
| 221 | |
| 222 /* read the current colormap */ | |
| 223 XQueryColors (display, colormap, cells, no_cells); | |
| 224 } | |
| 225 | |
| 226 nearest = 0; | |
| 227 /* I'm assuming CSE so I'm not going to condense this. */ | |
| 228 nearest_delta = ((((color_def->red >> 8) - (cells[0].red >> 8)) | |
| 229 * ((color_def->red >> 8) - (cells[0].red >> 8))) | |
| 230 + | |
| 231 (((color_def->green >> 8) - (cells[0].green >> 8)) | |
| 232 * ((color_def->green >> 8) - (cells[0].green >> | |
| 233 8))) | |
| 234 + | |
| 235 (((color_def->blue >> 8) - (cells[0].blue >> 8)) | |
| 236 * ((color_def->blue >> 8) - (cells[0].blue >> | |
| 237 8)))); | |
| 238 for (x = 1; x < no_cells; x++) | |
| 239 { | |
| 240 trial_delta = ((((color_def->red >> 8) - (cells[x].red >> 8)) | |
| 241 * ((color_def->red >> 8) - (cells[x].red >> 8))) | |
| 242 + | |
| 243 (((color_def->green >> 8) - (cells[x].green >> 8)) | |
| 244 * ((color_def->green >> 8) - (cells[x].green >> | |
| 245 8))) | |
| 246 + | |
| 247 (((color_def->blue >> 8) - (cells[x].blue >> 8)) | |
| 248 * ((color_def->blue >> 8) - (cells[x].blue >> | |
| 249 8)))); | |
| 250 | |
| 251 /* less? Ignore cells marked as previously failing */ | |
| 252 if( (trial_delta < nearest_delta) && | |
| 253 (cells[x].pixel != ULONG_MAX) ) | |
| 254 { | |
| 255 nearest = x; | |
| 256 nearest_delta = trial_delta; | |
| 257 } | |
| 258 } | |
| 259 color_def->red = cells[nearest].red; | |
| 260 color_def->green = cells[nearest].green; | |
| 261 color_def->blue = cells[nearest].blue; | |
| 262 if (XAllocColor (display, colormap, color_def) != 0) | |
| 263 status = 2; | |
| 264 else | |
| 265 /* LSK: Either the colour map has changed since | |
| 266 * we read it, or the colour is allocated | |
| 267 * read/write... Mark this cmap entry so it's | |
| 268 * ignored in the next iteration. | |
| 269 */ | |
| 270 cells[nearest].pixel = ULONG_MAX; | |
| 271 } | |
| 272 } | |
| 273 return status; | |
| 274 } | |
| 275 | |
| 276 #if 0 | |
| 277 /* Replacement for XAllocColor() that tries to return the nearest | |
| 278 available color if the colormap is full. From GNU Emacs. | |
| 279 #### Review this to see if there's anything our hairy version could use. */ | |
| 280 | |
| 281 int | |
| 282 FIXME_allocate_nearest_color (Display *display, Colormap screen_colormap, | |
| 283 XColor *color_def) | |
| 284 { | |
| 285 int status = XAllocColor (display, screen_colormap, color_def); | |
| 286 if (status) | |
| 287 return status; | |
| 288 | |
| 289 { | |
| 290 /* If we got to this point, the colormap is full, so we're | |
| 291 going to try to get the next closest color. | |
| 292 The algorithm used is a least-squares matching, which is | |
| 293 what X uses for closest color matching with StaticColor visuals. */ | |
| 294 | |
| 295 int nearest, x; | |
| 296 unsigned long nearest_delta = ULONG_MAX; | |
| 297 | |
| 298 int no_cells = XDisplayCells (display, XDefaultScreen (display)); | |
| 299 /* Don't use alloca here because lwlib doesn't have the | |
| 300 necessary configuration information that src does. */ | |
| 301 XColor *cells = (XColor *) malloc (sizeof (XColor) * no_cells); | |
| 302 | |
| 303 for (x = 0; x < no_cells; x++) | |
| 304 cells[x].pixel = x; | |
| 305 | |
| 306 XQueryColors (display, screen_colormap, cells, no_cells); | |
| 307 | |
| 308 for (nearest = 0, x = 0; x < no_cells; x++) | |
| 309 { | |
| 310 long dred = (color_def->red >> 8) - (cells[x].red >> 8); | |
| 311 long dgreen = (color_def->green >> 8) - (cells[x].green >> 8); | |
| 312 long dblue = (color_def->blue >> 8) - (cells[x].blue >> 8); | |
| 313 unsigned long delta = dred * dred + dgreen * dgreen + dblue * dblue; | |
| 314 | |
| 315 if (delta < nearest_delta) | |
| 316 { | |
| 317 nearest = x; | |
| 318 nearest_delta = delta; | |
| 319 } | |
| 320 } | |
| 321 color_def->red = cells[nearest].red; | |
| 322 color_def->green = cells[nearest].green; | |
| 323 color_def->blue = cells[nearest].blue; | |
| 324 free (cells); | |
| 325 return XAllocColor (display, screen_colormap, color_def); | |
| 326 } | |
| 327 } | |
| 328 #endif | |
| 329 | |
| 330 | |
|
4916
a6c778975d7d
split USE_XFT into HAVE_XFT/USE_XFT
Ben Wing <ben@xemacs.org>
parents:
3094
diff
changeset
|
331 #ifdef HAVE_XFT |
| 3094 | 332 |
| 333 XftColor | |
| 334 xft_convert_color (Display *dpy, Colormap cmap, Visual *visual, int c, int dim) | |
| 335 { | |
| 336 static XColor color; /* #### why is this static ?? */ | |
| 337 XftColor result; | |
| 338 | |
| 339 color.pixel = c; | |
| 340 XQueryColor(dpy, cmap, &color); | |
| 341 | |
| 342 if (dim) | |
| 343 { | |
| 344 color.red = MINL (65535, color.red * 1.5); | |
| 345 color.green = MINL (65535, color.green * 1.5); | |
| 346 color.blue = MINL (65535, color.blue * 1.5); | |
| 347 x_allocate_nearest_color (dpy, cmap, visual, &color); | |
| 348 } | |
| 349 | |
| 350 result.pixel = color.pixel; | |
| 351 result.color.red = color.red; | |
| 352 result.color.green = color.green; | |
| 353 result.color.blue = color.blue; | |
| 354 result.color.alpha = 0xffff; | |
| 355 | |
| 356 return result; | |
| 357 } | |
| 358 | |
|
4916
a6c778975d7d
split USE_XFT into HAVE_XFT/USE_XFT
Ben Wing <ben@xemacs.org>
parents:
3094
diff
changeset
|
359 #endif /* HAVE_XFT */ |
| 3094 | 360 |
| 361 /* end of lwlib-colors.c */ |