1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463
|
/* -*-c-*- */
/* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* This module is all new
* by Rob Nation
*
* This code handles colormaps for fvwm.
*
* Copyright 1994 Robert Nation. No restrictions are placed on this code,
* as long as the copyright notice is preserved . No guarantees or
* warrantees of any sort whatsoever are given or implied or anything.
*/
/* ---------------------------- included header files ---------------------- */
#include "config.h"
#include <stdio.h>
#include "libs/fvwmlib.h"
#include "fvwm.h"
#include "externs.h"
#include "cursor.h"
#include "execcontext.h"
#include "eventhandler.h"
#include "functions.h"
#include "bindings.h"
#include "misc.h"
#include "screen.h"
#include "colormaps.h"
/* ---------------------------- local definitions -------------------------- */
/* ---------------------------- local macros ------------------------------- */
/* ---------------------------- imports ------------------------------------ */
/* ---------------------------- included code files ------------------------ */
/* ---------------------------- local types -------------------------------- */
/* ---------------------------- forward declarations ----------------------- */
/* ---------------------------- local variables ---------------------------- */
static Bool client_controls_colormaps = False;
static Colormap last_cmap = None;
/* ---------------------------- exported variables (globals) --------------- */
const FvwmWindow *colormap_win;
/* ---------------------------- local functions ---------------------------- */
/* ---------------------------- interface functions ------------------------ */
void set_client_controls_colormaps(Bool flag)
{
client_controls_colormaps = flag;
return;
}
/* HandleColormapNotify - colormap notify event handler
*
* This procedure handles both a client changing its own colormap, and
* a client explicitly installing its colormap itself (only the window
* manager should do that, so we must set it correctly).
*/
void colormap_handle_colormap_notify(const evh_args_t *ea)
{
XEvent evdummy;
XColormapEvent *cevent = (XColormapEvent *)ea->exc->x.etrigger;
Bool ReInstall = False;
XWindowAttributes attr;
FvwmWindow *fw = ea->exc->w.fw;
if (!fw)
{
return;
}
if (cevent->new)
{
if (XGetWindowAttributes(dpy, FW_W(fw), &attr) != 0)
{
fw->attr_backup.colormap = attr.colormap;
if (fw == colormap_win &&
fw->number_cmap_windows == 0)
{
last_cmap = attr.colormap;
}
ReInstall = True;
}
}
else if ((cevent->state == ColormapUninstalled)&&
(last_cmap == cevent->colormap))
{
/* Some window installed its colormap, change it back */
ReInstall = True;
}
while (FCheckTypedEvent(dpy, ColormapNotify, &evdummy))
{
if (XFindContext(
dpy, cevent->window, FvwmContext,
(caddr_t *) &fw) == XCNOENT)
{
fw = NULL;
}
if ((fw)&&(cevent->new))
{
if (XGetWindowAttributes(dpy, FW_W(fw), &attr) != 0)
{
fw->attr_backup.colormap = attr.colormap;
if (fw == colormap_win &&
fw->number_cmap_windows == 0)
{
last_cmap = attr.colormap;
}
ReInstall = True;
}
}
else if ((fw)&&
(cevent->state == ColormapUninstalled)&&
(last_cmap == cevent->colormap))
{
/* Some window installed its colormap, change it back */
ReInstall = True;
}
else if ((fw)&&
(cevent->state == ColormapInstalled)&&
(last_cmap == cevent->colormap))
{
/* The last color map installed was the correct one.
* Do not change anything */
ReInstall = False;
}
}
/* Reinstall the colormap that we think should be installed,
* UNLESS and unrecognized window has the focus - it might be
* an override-redirect window that has its own colormap. */
if (ReInstall && Scr.UnknownWinFocused == None &&
!client_controls_colormaps)
{
XInstallColormap(dpy,last_cmap);
}
return;
}
/* Re-Install the active colormap */
void ReInstallActiveColormap(void)
{
InstallWindowColormaps(colormap_win);
return;
}
/* Procedure:
* InstallWindowColormaps - install the colormaps for one fvwm window
*
* Inputs:
* type - type of event that caused the installation
* tmp - for a subset of event types, the address of the
* window structure, whose colormaps are to be installed.
*/
void InstallWindowColormaps(const FvwmWindow *fw)
{
int i;
XWindowAttributes attributes;
Window w;
Bool ThisWinInstalled = False;
/* If no window, then install fvwm colormap */
if (!fw)
{
fw = &Scr.FvwmRoot;
}
colormap_win = fw;
/* Save the colormap to be loaded for when force loading of
* root colormap(s) ends.
*/
Scr.pushed_window = fw;
/* Don't load any new colormap if root/fvwm colormap(s) has been
* force loaded.
*/
if (Scr.root_pushes || Scr.fvwm_pushes || client_controls_colormaps)
{
return;
}
if (fw->number_cmap_windows > 0)
{
for (i=fw->number_cmap_windows -1; i>=0;i--)
{
w = fw->cmap_windows[i];
if (w == FW_W(fw))
{
ThisWinInstalled = True;
}
if (!XGetWindowAttributes(dpy,w,&attributes))
{
attributes.colormap = last_cmap;
}
/*
* On Sun X servers, don't install 24 bit TrueColor
* colourmaps. Despite what the server says, these
* colourmaps are always installed. */
if (last_cmap != attributes.colormap
#if defined(sun) && defined(TRUECOLOR_ALWAYS_INSTALLED)
&& !(attributes.depth == 24 &&
attributes.visual->class == TrueColor)
#endif
)
{
last_cmap = attributes.colormap;
XInstallColormap(dpy, last_cmap);
}
}
}
if (!ThisWinInstalled)
{
if (last_cmap != fw->attr_backup.colormap
#if defined(sun) && defined(TRUECOLOR_ALWAYS_INSTALLED)
&& !(fw->attr_backup.depth == 24 &&
fw->attr_backup.visual->class == TrueColor)
#endif
)
{
last_cmap = fw->attr_backup.colormap;
XInstallColormap(dpy, last_cmap);
}
}
return;
}
/* Force (un)loads root colormap(s)
*
* These matching routines provide a mechanism to insure that
* the root colormap(s) is installed during operations like
* rubber banding that require colors from
* that colormap. Calls may be nested arbitrarily deeply,
* as long as there is one UninstallRootColormap call per
* InstallRootColormap call.
*
* {Uni,I}nstall{Root,Fvwm}Colormap calls may be freely intermixed
*/
void InstallRootColormap(void)
{
if (last_cmap != DefaultColormap(dpy, Scr.screen))
{
last_cmap = DefaultColormap(dpy, Scr.screen);
XInstallColormap(dpy, last_cmap);
}
Scr.root_pushes++;
return;
}
/* Unstacks one layer of root colormap pushing
* If we peel off the last layer, re-install the application colormap
* or the fvwm colormap if fvwm has a menu posted
*/
void UninstallRootColormap(void)
{
if (Scr.root_pushes)
{
Scr.root_pushes--;
}
if (!Scr.root_pushes)
{
if (!Scr.fvwm_pushes)
{
InstallWindowColormaps(Scr.pushed_window);
}
else if (last_cmap != Pcmap)
{
last_cmap = Pcmap;
XInstallColormap(dpy, last_cmap);
}
}
return;
}
/* Procedures:
* {Uni/I}nstallFvwmColormap - Force (un)loads fvwm colormap(s)
* This is used to ensure the fvwm colormap is installed during
* menu operations
*/
void InstallFvwmColormap(void)
{
if (last_cmap != Pcmap)
{
last_cmap = Pcmap;
XInstallColormap(dpy, last_cmap);
}
Scr.fvwm_pushes++;
return;
}
void UninstallFvwmColormap(void)
{
if (Scr.fvwm_pushes)
{
Scr.fvwm_pushes--;
}
if (!Scr.fvwm_pushes)
{
if (!Scr.root_pushes)
{
InstallWindowColormaps(Scr.pushed_window);
}
else if (last_cmap != DefaultColormap(dpy, Scr.screen))
{
last_cmap = DefaultColormap(dpy, Scr.screen);
XInstallColormap(dpy, last_cmap);
}
}
return;
}
/* Gets the WM_COLORMAP_WINDOWS property from the window
*
* This property typically doesn't exist, but a few applications
* use it. These seem to occur mostly on SGI machines.
*/
void FetchWmColormapWindows (FvwmWindow *fw)
{
XWindowAttributes getattribs;
XSetWindowAttributes setattribs;
long i;
unsigned long valuemask;
if (fw->cmap_windows != (Window *)NULL)
{
XFree((void *)fw->cmap_windows);
}
if (!XGetWMColormapWindows (dpy, FW_W(fw), &(fw->cmap_windows),
&(fw->number_cmap_windows)))
{
fw->number_cmap_windows = 0;
fw->cmap_windows = NULL;
}
/* we need to be notified of Enter events into these subwindows
* so we can set their colormaps */
if (fw->number_cmap_windows != 0)
{
for (i = 0; i < fw->number_cmap_windows; i++)
{
if (XGetWindowAttributes(
dpy, fw->cmap_windows[i], &getattribs))
{
valuemask = CWEventMask;
setattribs.event_mask =
getattribs.your_event_mask |
EnterWindowMask | LeaveWindowMask;
XChangeWindowAttributes(
dpy, fw->cmap_windows[i], valuemask,
&setattribs);
}
}
}
return;
}
/* Looks through the window list for any matching COLORMAP_WINDOWS
* windows and installs the colormap if one exists.
*/
void EnterSubWindowColormap(Window win)
{
FvwmWindow *t;
long i;
XWindowAttributes attribs;
for (t = Scr.FvwmRoot.next; t != NULL; t = t->next)
{
if (t->number_cmap_windows != 0)
{
for (i = 0; i < t->number_cmap_windows; i++)
{
if (t->cmap_windows[i] == win)
{
if (XGetWindowAttributes(
dpy,win,&attribs))
{
last_cmap = attribs.colormap;
XInstallColormap(
dpy, last_cmap);
}
return;
}
}
}
}
return;
}
void LeaveSubWindowColormap(Window win)
{
FvwmWindow *t;
long i;
int bWinInList, bParentInList;
for (t = Scr.FvwmRoot.next; t != NULL; t = t->next)
{
if (t->number_cmap_windows != 0)
{
bWinInList = 0;
bParentInList = 0;
for (i=0;i<t->number_cmap_windows;i++)
{
if (t->cmap_windows[i] == win)
{
bWinInList = 1;
}
if (t->cmap_windows[i] == FW_W(t))
{
bParentInList = 1;
}
}
if (bWinInList)
{
if (bParentInList)
{
InstallWindowColormaps(t);
}
else
{
InstallWindowColormaps(NULL);
}
return;
}
}
}
return;
}
|