| 1 | |
| 2 | /*********************************************************** |
| 3 | |
| 4 | Copyright 1987, 1998 The Open Group |
| 5 | |
| 6 | Permission to use, copy, modify, distribute, and sell this software and its |
| 7 | documentation for any purpose is hereby granted without fee, provided that |
| 8 | the above copyright notice appear in all copies and that both that |
| 9 | copyright notice and this permission notice appear in supporting |
| 10 | documentation. |
| 11 | |
| 12 | The above copyright notice and this permission notice shall be included in |
| 13 | all copies or substantial portions of the Software. |
| 14 | |
| 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 18 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| 19 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 20 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 21 | |
| 22 | Except as contained in this notice, the name of The Open Group shall not be |
| 23 | used in advertising or otherwise to promote the sale, use or other dealings |
| 24 | in this Software without prior written authorization from The Open Group. |
| 25 | |
| 26 | Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. |
| 27 | |
| 28 | All Rights Reserved |
| 29 | |
| 30 | Permission to use, copy, modify, and distribute this software and its |
| 31 | documentation for any purpose and without fee is hereby granted, |
| 32 | provided that the above copyright notice appear in all copies and that |
| 33 | both that copyright notice and this permission notice appear in |
| 34 | supporting documentation, and that the name of Digital not be |
| 35 | used in advertising or publicity pertaining to distribution of the |
| 36 | software without specific, written prior permission. |
| 37 | |
| 38 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING |
| 39 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL |
| 40 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR |
| 41 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| 42 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, |
| 43 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
| 44 | SOFTWARE. |
| 45 | |
| 46 | ******************************************************************/ |
| 47 | #ifdef HAVE_DIX_CONFIG_H |
| 48 | #include <dix-config.h> |
| 49 | #endif |
| 50 | |
| 51 | #include <X11/X.h> |
| 52 | #include <X11/extensions/shapeconst.h> |
| 53 | #include "regionstr.h" |
| 54 | #include "region.h" |
| 55 | #include "mi.h" |
| 56 | #include "windowstr.h" |
| 57 | #include "scrnintstr.h" |
| 58 | #include "pixmapstr.h" |
| 59 | #include "mivalidate.h" |
| 60 | |
| 61 | void |
| 62 | miClearToBackground(WindowPtr pWin, |
| 63 | int x, int y, int w, int h, Bool generateExposures) |
| 64 | { |
| 65 | BoxRec box; |
| 66 | RegionRec reg; |
| 67 | BoxPtr extents; |
| 68 | int x1, y1, x2, y2; |
| 69 | |
| 70 | /* compute everything using ints to avoid overflow */ |
| 71 | |
| 72 | x1 = pWin->drawable.x + x; |
| 73 | y1 = pWin->drawable.y + y; |
| 74 | if (w) |
| 75 | x2 = x1 + (int) w; |
| 76 | else |
| 77 | x2 = x1 + (int) pWin->drawable.width - (int) x; |
| 78 | if (h) |
| 79 | y2 = y1 + h; |
| 80 | else |
| 81 | y2 = y1 + (int) pWin->drawable.height - (int) y; |
| 82 | |
| 83 | extents = &pWin->clipList.extents; |
| 84 | |
| 85 | /* clip the resulting rectangle to the window clipList extents. This |
| 86 | * makes sure that the result will fit in a box, given that the |
| 87 | * screen is < 32768 on a side. |
| 88 | */ |
| 89 | |
| 90 | if (x1 < extents->x1) |
| 91 | x1 = extents->x1; |
| 92 | if (x2 > extents->x2) |
| 93 | x2 = extents->x2; |
| 94 | if (y1 < extents->y1) |
| 95 | y1 = extents->y1; |
| 96 | if (y2 > extents->y2) |
| 97 | y2 = extents->y2; |
| 98 | |
| 99 | if (x2 <= x1 || y2 <= y1) { |
| 100 | x2 = x1 = 0; |
| 101 | y2 = y1 = 0; |
| 102 | } |
| 103 | |
| 104 | box.x1 = x1; |
| 105 | box.x2 = x2; |
| 106 | box.y1 = y1; |
| 107 | box.y2 = y2; |
| 108 | |
| 109 | RegionInit(®, &box, 1); |
| 110 | |
| 111 | RegionIntersect(®, ®, &pWin->clipList); |
| 112 | if (generateExposures) |
| 113 | (*pWin->drawable.pScreen->WindowExposures) (pWin, ®, NULL); |
| 114 | else if (pWin->backgroundState != None) |
| 115 | miPaintWindow(pWin, ®, PW_BACKGROUND); |
| 116 | RegionUninit(®); |
| 117 | } |
| 118 | |
| 119 | void |
| 120 | miMarkWindow(WindowPtr pWin) |
| 121 | { |
| 122 | ValidatePtr val; |
| 123 | |
| 124 | if (pWin->valdata) |
| 125 | return; |
| 126 | val = (ValidatePtr) xnfalloc(sizeof(ValidateRec)); |
| 127 | val->before.oldAbsCorner.x = pWin->drawable.x; |
| 128 | val->before.oldAbsCorner.y = pWin->drawable.y; |
| 129 | val->before.borderVisible = NullRegion; |
| 130 | val->before.resized = FALSE; |
| 131 | pWin->valdata = val; |
| 132 | } |
| 133 | |
| 134 | Bool |
| 135 | miMarkOverlappedWindows(WindowPtr pWin, WindowPtr pFirst, WindowPtr *ppLayerWin) |
| 136 | { |
| 137 | BoxPtr box; |
| 138 | WindowPtr pChild, pLast; |
| 139 | Bool anyMarked = FALSE; |
| 140 | MarkWindowProcPtr MarkWindow = pWin->drawable.pScreen->MarkWindow; |
| 141 | |
| 142 | /* single layered systems are easy */ |
| 143 | if (ppLayerWin) |
| 144 | *ppLayerWin = pWin; |
| 145 | |
| 146 | if (pWin == pFirst) { |
| 147 | /* Blindly mark pWin and all of its inferiors. This is a slight |
| 148 | * overkill if there are mapped windows that outside pWin's border, |
| 149 | * but it's better than wasting time on RectIn checks. |
| 150 | */ |
| 151 | pChild = pWin; |
| 152 | while (1) { |
| 153 | if (pChild->viewable) { |
| 154 | if (RegionBroken(&pChild->winSize)) |
| 155 | SetWinSize(pChild); |
| 156 | if (RegionBroken(&pChild->borderSize)) |
| 157 | SetBorderSize(pChild); |
| 158 | (*MarkWindow) (pChild); |
| 159 | if (pChild->firstChild) { |
| 160 | pChild = pChild->firstChild; |
| 161 | continue; |
| 162 | } |
| 163 | } |
| 164 | while (!pChild->nextSib && (pChild != pWin)) |
| 165 | pChild = pChild->parent; |
| 166 | if (pChild == pWin) |
| 167 | break; |
| 168 | pChild = pChild->nextSib; |
| 169 | } |
| 170 | anyMarked = TRUE; |
| 171 | pFirst = pFirst->nextSib; |
| 172 | } |
| 173 | if ((pChild = pFirst)) { |
| 174 | box = RegionExtents(&pWin->borderSize); |
| 175 | pLast = pChild->parent->lastChild; |
| 176 | while (1) { |
| 177 | if (pChild->viewable) { |
| 178 | if (RegionBroken(&pChild->winSize)) |
| 179 | SetWinSize(pChild); |
| 180 | if (RegionBroken(&pChild->borderSize)) |
| 181 | SetBorderSize(pChild); |
| 182 | if (RegionContainsRect(&pChild->borderSize, box)) { |
| 183 | (*MarkWindow) (pChild); |
| 184 | anyMarked = TRUE; |
| 185 | if (pChild->firstChild) { |
| 186 | pChild = pChild->firstChild; |
| 187 | continue; |
| 188 | } |
| 189 | } |
| 190 | } |
| 191 | while (!pChild->nextSib && (pChild != pLast)) |
| 192 | pChild = pChild->parent; |
| 193 | if (pChild == pLast) |
| 194 | break; |
| 195 | pChild = pChild->nextSib; |
| 196 | } |
| 197 | } |
| 198 | if (anyMarked) |
| 199 | (*MarkWindow) (pWin->parent); |
| 200 | return anyMarked; |
| 201 | } |
| 202 | |
| 203 | /***** |
| 204 | * miHandleValidateExposures(pWin) |
| 205 | * starting at pWin, draw background in any windows that have exposure |
| 206 | * regions, translate the regions, restore any backing store, |
| 207 | * and then send any regions still exposed to the client |
| 208 | *****/ |
| 209 | void |
| 210 | miHandleValidateExposures(WindowPtr pWin) |
| 211 | { |
| 212 | WindowPtr pChild; |
| 213 | ValidatePtr val; |
| 214 | WindowExposuresProcPtr WindowExposures; |
| 215 | |
| 216 | pChild = pWin; |
| 217 | WindowExposures = pChild->drawable.pScreen->WindowExposures; |
| 218 | while (1) { |
| 219 | if ((val = pChild->valdata)) { |
| 220 | if (RegionNotEmpty(&val->after.borderExposed)) |
| 221 | miPaintWindow(pChild, &val->after.borderExposed, PW_BORDER); |
| 222 | RegionUninit(&val->after.borderExposed); |
| 223 | (*WindowExposures) (pChild, &val->after.exposed, NullRegion); |
| 224 | RegionUninit(&val->after.exposed); |
| 225 | free(val); |
| 226 | pChild->valdata = NULL; |
| 227 | if (pChild->firstChild) { |
| 228 | pChild = pChild->firstChild; |
| 229 | continue; |
| 230 | } |
| 231 | } |
| 232 | while (!pChild->nextSib && (pChild != pWin)) |
| 233 | pChild = pChild->parent; |
| 234 | if (pChild == pWin) |
| 235 | break; |
| 236 | pChild = pChild->nextSib; |
| 237 | } |
| 238 | } |
| 239 | |
| 240 | void |
| 241 | miMoveWindow(WindowPtr pWin, int x, int y, WindowPtr pNextSib, VTKind kind) |
| 242 | { |
| 243 | WindowPtr pParent; |
| 244 | Bool WasViewable = (Bool) (pWin->viewable); |
| 245 | short bw; |
| 246 | RegionPtr oldRegion = NULL; |
| 247 | DDXPointRec oldpt; |
| 248 | Bool anyMarked = FALSE; |
| 249 | ScreenPtr pScreen; |
| 250 | WindowPtr windowToValidate; |
| 251 | WindowPtr pLayerWin; |
| 252 | |
| 253 | /* if this is a root window, can't be moved */ |
| 254 | if (!(pParent = pWin->parent)) |
| 255 | return; |
| 256 | pScreen = pWin->drawable.pScreen; |
| 257 | bw = wBorderWidth(pWin); |
| 258 | |
| 259 | oldpt.x = pWin->drawable.x; |
| 260 | oldpt.y = pWin->drawable.y; |
| 261 | if (WasViewable) { |
| 262 | oldRegion = RegionCreate(NullBox, 1); |
| 263 | RegionCopy(oldRegion, &pWin->borderClip); |
| 264 | anyMarked = (*pScreen->MarkOverlappedWindows) (pWin, pWin, &pLayerWin); |
| 265 | } |
| 266 | pWin->origin.x = x + (int) bw; |
| 267 | pWin->origin.y = y + (int) bw; |
| 268 | x = pWin->drawable.x = pParent->drawable.x + x + (int) bw; |
| 269 | y = pWin->drawable.y = pParent->drawable.y + y + (int) bw; |
| 270 | |
| 271 | SetWinSize(pWin); |
| 272 | SetBorderSize(pWin); |
| 273 | |
| 274 | (*pScreen->PositionWindow) (pWin, x, y); |
| 275 | |
| 276 | windowToValidate = MoveWindowInStack(pWin, pNextSib); |
| 277 | |
| 278 | ResizeChildrenWinSize(pWin, x - oldpt.x, y - oldpt.y, 0, 0); |
| 279 | |
| 280 | if (WasViewable) { |
| 281 | if (pLayerWin == pWin) |
| 282 | anyMarked |= (*pScreen->MarkOverlappedWindows) |
| 283 | (pWin, windowToValidate, NULL); |
| 284 | else |
| 285 | anyMarked |= (*pScreen->MarkOverlappedWindows) |
| 286 | (pWin, pLayerWin, NULL); |
| 287 | |
| 288 | if (anyMarked) { |
| 289 | (*pScreen->ValidateTree) (pLayerWin->parent, NullWindow, kind); |
| 290 | (*pWin->drawable.pScreen->CopyWindow) (pWin, oldpt, oldRegion); |
| 291 | RegionDestroy(oldRegion); |
| 292 | /* XXX need to retile border if ParentRelative origin */ |
| 293 | (*pScreen->HandleExposures) (pLayerWin->parent); |
| 294 | } |
| 295 | if (anyMarked && pScreen->PostValidateTree) |
| 296 | (*pScreen->PostValidateTree) (pLayerWin->parent, NullWindow, kind); |
| 297 | } |
| 298 | if (pWin->realized) |
| 299 | WindowsRestructured(); |
| 300 | } |
| 301 | |
| 302 | /* |
| 303 | * pValid is a region of the screen which has been |
| 304 | * successfully copied -- recomputed exposed regions for affected windows |
| 305 | */ |
| 306 | |
| 307 | static int |
| 308 | miRecomputeExposures(WindowPtr pWin, pointer value) |
| 309 | { /* must conform to VisitWindowProcPtr */ |
| 310 | RegionPtr pValid = (RegionPtr) value; |
| 311 | |
| 312 | if (pWin->valdata) { |
| 313 | #ifdef COMPOSITE |
| 314 | /* |
| 315 | * Redirected windows are not affected by parent window |
| 316 | * gravity manipulations, so don't recompute their |
| 317 | * exposed areas here. |
| 318 | */ |
| 319 | if (pWin->redirectDraw != RedirectDrawNone) |
| 320 | return WT_DONTWALKCHILDREN; |
| 321 | #endif |
| 322 | /* |
| 323 | * compute exposed regions of this window |
| 324 | */ |
| 325 | RegionSubtract(&pWin->valdata->after.exposed, &pWin->clipList, pValid); |
| 326 | /* |
| 327 | * compute exposed regions of the border |
| 328 | */ |
| 329 | RegionSubtract(&pWin->valdata->after.borderExposed, |
| 330 | &pWin->borderClip, &pWin->winSize); |
| 331 | RegionSubtract(&pWin->valdata->after.borderExposed, |
| 332 | &pWin->valdata->after.borderExposed, pValid); |
| 333 | return WT_WALKCHILDREN; |
| 334 | } |
| 335 | return WT_NOMATCH; |
| 336 | } |
| 337 | |
| 338 | void |
| 339 | miSlideAndSizeWindow(WindowPtr pWin, |
| 340 | int x, int y, |
| 341 | unsigned int w, unsigned int h, WindowPtr pSib) |
| 342 | { |
| 343 | WindowPtr pParent; |
| 344 | Bool WasViewable = (Bool) (pWin->viewable); |
| 345 | unsigned short width = pWin->drawable.width, height = pWin->drawable.height; |
| 346 | short oldx = pWin->drawable.x, oldy = pWin->drawable.y; |
| 347 | int bw = wBorderWidth(pWin); |
| 348 | short dw, dh; |
| 349 | DDXPointRec oldpt; |
| 350 | RegionPtr oldRegion = NULL; |
| 351 | Bool anyMarked = FALSE; |
| 352 | ScreenPtr pScreen; |
| 353 | WindowPtr pFirstChange; |
| 354 | WindowPtr pChild; |
| 355 | RegionPtr gravitate[StaticGravity + 1]; |
| 356 | unsigned g; |
| 357 | int nx, ny; /* destination x,y */ |
| 358 | int newx, newy; /* new inner window position */ |
| 359 | RegionPtr pRegion = NULL; |
| 360 | RegionPtr destClip; /* portions of destination already written */ |
| 361 | RegionPtr oldWinClip = NULL; /* old clip list for window */ |
| 362 | RegionPtr borderVisible = NullRegion; /* visible area of the border */ |
| 363 | Bool shrunk = FALSE; /* shrunk in an inner dimension */ |
| 364 | Bool moved = FALSE; /* window position changed */ |
| 365 | WindowPtr pLayerWin; |
| 366 | |
| 367 | /* if this is a root window, can't be resized */ |
| 368 | if (!(pParent = pWin->parent)) |
| 369 | return; |
| 370 | |
| 371 | pScreen = pWin->drawable.pScreen; |
| 372 | newx = pParent->drawable.x + x + bw; |
| 373 | newy = pParent->drawable.y + y + bw; |
| 374 | if (WasViewable) { |
| 375 | anyMarked = FALSE; |
| 376 | /* |
| 377 | * save the visible region of the window |
| 378 | */ |
| 379 | oldRegion = RegionCreate(NullBox, 1); |
| 380 | RegionCopy(oldRegion, &pWin->winSize); |
| 381 | |
| 382 | /* |
| 383 | * categorize child windows into regions to be moved |
| 384 | */ |
| 385 | for (g = 0; g <= StaticGravity; g++) |
| 386 | gravitate[g] = (RegionPtr) NULL; |
| 387 | for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) { |
| 388 | g = pChild->winGravity; |
| 389 | if (g != UnmapGravity) { |
| 390 | if (!gravitate[g]) |
| 391 | gravitate[g] = RegionCreate(NullBox, 1); |
| 392 | RegionUnion(gravitate[g], gravitate[g], &pChild->borderClip); |
| 393 | } |
| 394 | else { |
| 395 | UnmapWindow(pChild, TRUE); |
| 396 | anyMarked = TRUE; |
| 397 | } |
| 398 | } |
| 399 | anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin, pWin, &pLayerWin); |
| 400 | |
| 401 | oldWinClip = NULL; |
| 402 | if (pWin->bitGravity != ForgetGravity) { |
| 403 | oldWinClip = RegionCreate(NullBox, 1); |
| 404 | RegionCopy(oldWinClip, &pWin->clipList); |
| 405 | } |
| 406 | /* |
| 407 | * if the window is changing size, borderExposed |
| 408 | * can't be computed correctly without some help. |
| 409 | */ |
| 410 | if (pWin->drawable.height > h || pWin->drawable.width > w) |
| 411 | shrunk = TRUE; |
| 412 | |
| 413 | if (newx != oldx || newy != oldy) |
| 414 | moved = TRUE; |
| 415 | |
| 416 | if ((pWin->drawable.height != h || pWin->drawable.width != w) && |
| 417 | HasBorder(pWin)) { |
| 418 | borderVisible = RegionCreate(NullBox, 1); |
| 419 | /* for tiled borders, we punt and draw the whole thing */ |
| 420 | if (pWin->borderIsPixel || !moved) { |
| 421 | if (shrunk || moved) |
| 422 | RegionSubtract(borderVisible, |
| 423 | &pWin->borderClip, &pWin->winSize); |
| 424 | else |
| 425 | RegionCopy(borderVisible, &pWin->borderClip); |
| 426 | } |
| 427 | } |
| 428 | } |
| 429 | pWin->origin.x = x + bw; |
| 430 | pWin->origin.y = y + bw; |
| 431 | pWin->drawable.height = h; |
| 432 | pWin->drawable.width = w; |
| 433 | |
| 434 | x = pWin->drawable.x = newx; |
| 435 | y = pWin->drawable.y = newy; |
| 436 | |
| 437 | SetWinSize(pWin); |
| 438 | SetBorderSize(pWin); |
| 439 | |
| 440 | dw = (int) w - (int) width; |
| 441 | dh = (int) h - (int) height; |
| 442 | ResizeChildrenWinSize(pWin, x - oldx, y - oldy, dw, dh); |
| 443 | |
| 444 | /* let the hardware adjust background and border pixmaps, if any */ |
| 445 | (*pScreen->PositionWindow) (pWin, x, y); |
| 446 | |
| 447 | pFirstChange = MoveWindowInStack(pWin, pSib); |
| 448 | |
| 449 | if (WasViewable) { |
| 450 | pRegion = RegionCreate(NullBox, 1); |
| 451 | |
| 452 | if (pLayerWin == pWin) |
| 453 | anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin, pFirstChange, |
| 454 | NULL); |
| 455 | else |
| 456 | anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin, pLayerWin, |
| 457 | NULL); |
| 458 | |
| 459 | if (pWin->valdata) { |
| 460 | pWin->valdata->before.resized = TRUE; |
| 461 | pWin->valdata->before.borderVisible = borderVisible; |
| 462 | } |
| 463 | |
| 464 | if (anyMarked) |
| 465 | (*pScreen->ValidateTree) (pLayerWin->parent, pFirstChange, VTOther); |
| 466 | /* |
| 467 | * the entire window is trashed unless bitGravity |
| 468 | * recovers portions of it |
| 469 | */ |
| 470 | RegionCopy(&pWin->valdata->after.exposed, &pWin->clipList); |
| 471 | } |
| 472 | |
| 473 | GravityTranslate(x, y, oldx, oldy, dw, dh, pWin->bitGravity, &nx, &ny); |
| 474 | |
| 475 | if (WasViewable) { |
| 476 | /* avoid the border */ |
| 477 | if (HasBorder(pWin)) { |
| 478 | int offx, offy, dx, dy; |
| 479 | |
| 480 | /* kruft to avoid double translates for each gravity */ |
| 481 | offx = 0; |
| 482 | offy = 0; |
| 483 | for (g = 0; g <= StaticGravity; g++) { |
| 484 | if (!gravitate[g]) |
| 485 | continue; |
| 486 | |
| 487 | /* align winSize to gravitate[g]. |
| 488 | * winSize is in new coordinates, |
| 489 | * gravitate[g] is still in old coordinates */ |
| 490 | GravityTranslate(x, y, oldx, oldy, dw, dh, g, &nx, &ny); |
| 491 | |
| 492 | dx = (oldx - nx) - offx; |
| 493 | dy = (oldy - ny) - offy; |
| 494 | if (dx || dy) { |
| 495 | RegionTranslate(&pWin->winSize, dx, dy); |
| 496 | offx += dx; |
| 497 | offy += dy; |
| 498 | } |
| 499 | RegionIntersect(gravitate[g], gravitate[g], &pWin->winSize); |
| 500 | } |
| 501 | /* get winSize back where it belongs */ |
| 502 | if (offx || offy) |
| 503 | RegionTranslate(&pWin->winSize, -offx, -offy); |
| 504 | } |
| 505 | /* |
| 506 | * add screen bits to the appropriate bucket |
| 507 | */ |
| 508 | |
| 509 | if (oldWinClip) { |
| 510 | /* |
| 511 | * clip to new clipList |
| 512 | */ |
| 513 | RegionCopy(pRegion, oldWinClip); |
| 514 | RegionTranslate(pRegion, nx - oldx, ny - oldy); |
| 515 | RegionIntersect(oldWinClip, pRegion, &pWin->clipList); |
| 516 | /* |
| 517 | * don't step on any gravity bits which will be copied after this |
| 518 | * region. Note -- this assumes that the regions will be copied |
| 519 | * in gravity order. |
| 520 | */ |
| 521 | for (g = pWin->bitGravity + 1; g <= StaticGravity; g++) { |
| 522 | if (gravitate[g]) |
| 523 | RegionSubtract(oldWinClip, oldWinClip, gravitate[g]); |
| 524 | } |
| 525 | RegionTranslate(oldWinClip, oldx - nx, oldy - ny); |
| 526 | g = pWin->bitGravity; |
| 527 | if (!gravitate[g]) |
| 528 | gravitate[g] = oldWinClip; |
| 529 | else { |
| 530 | RegionUnion(gravitate[g], gravitate[g], oldWinClip); |
| 531 | RegionDestroy(oldWinClip); |
| 532 | } |
| 533 | } |
| 534 | |
| 535 | /* |
| 536 | * move the bits on the screen |
| 537 | */ |
| 538 | |
| 539 | destClip = NULL; |
| 540 | |
| 541 | for (g = 0; g <= StaticGravity; g++) { |
| 542 | if (!gravitate[g]) |
| 543 | continue; |
| 544 | |
| 545 | GravityTranslate(x, y, oldx, oldy, dw, dh, g, &nx, &ny); |
| 546 | |
| 547 | oldpt.x = oldx + (x - nx); |
| 548 | oldpt.y = oldy + (y - ny); |
| 549 | |
| 550 | /* Note that gravitate[g] is *translated* by CopyWindow */ |
| 551 | |
| 552 | /* only copy the remaining useful bits */ |
| 553 | |
| 554 | RegionIntersect(gravitate[g], gravitate[g], oldRegion); |
| 555 | |
| 556 | /* clip to not overwrite already copied areas */ |
| 557 | |
| 558 | if (destClip) { |
| 559 | RegionTranslate(destClip, oldpt.x - x, oldpt.y - y); |
| 560 | RegionSubtract(gravitate[g], gravitate[g], destClip); |
| 561 | RegionTranslate(destClip, x - oldpt.x, y - oldpt.y); |
| 562 | } |
| 563 | |
| 564 | /* and move those bits */ |
| 565 | |
| 566 | if (oldpt.x != x || oldpt.y != y |
| 567 | #ifdef COMPOSITE |
| 568 | || pWin->redirectDraw |
| 569 | #endif |
| 570 | ) { |
| 571 | (*pWin->drawable.pScreen->CopyWindow) (pWin, oldpt, |
| 572 | gravitate[g]); |
| 573 | } |
| 574 | |
| 575 | /* remove any overwritten bits from the remaining useful bits */ |
| 576 | |
| 577 | RegionSubtract(oldRegion, oldRegion, gravitate[g]); |
| 578 | |
| 579 | /* |
| 580 | * recompute exposed regions of child windows |
| 581 | */ |
| 582 | |
| 583 | for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) { |
| 584 | if (pChild->winGravity != g) |
| 585 | continue; |
| 586 | RegionIntersect(pRegion, &pChild->borderClip, gravitate[g]); |
| 587 | TraverseTree(pChild, miRecomputeExposures, (pointer) pRegion); |
| 588 | } |
| 589 | |
| 590 | /* |
| 591 | * remove the successfully copied regions of the |
| 592 | * window from its exposed region |
| 593 | */ |
| 594 | |
| 595 | if (g == pWin->bitGravity) |
| 596 | RegionSubtract(&pWin->valdata->after.exposed, |
| 597 | &pWin->valdata->after.exposed, gravitate[g]); |
| 598 | if (!destClip) |
| 599 | destClip = gravitate[g]; |
| 600 | else { |
| 601 | RegionUnion(destClip, destClip, gravitate[g]); |
| 602 | RegionDestroy(gravitate[g]); |
| 603 | } |
| 604 | } |
| 605 | |
| 606 | RegionDestroy(oldRegion); |
| 607 | RegionDestroy(pRegion); |
| 608 | if (destClip) |
| 609 | RegionDestroy(destClip); |
| 610 | if (anyMarked) |
| 611 | (*pScreen->HandleExposures) (pLayerWin->parent); |
| 612 | if (anyMarked && pScreen->PostValidateTree) |
| 613 | (*pScreen->PostValidateTree) (pLayerWin->parent, pFirstChange, |
| 614 | VTOther); |
| 615 | } |
| 616 | if (pWin->realized) |
| 617 | WindowsRestructured(); |
| 618 | } |
| 619 | |
| 620 | WindowPtr |
| 621 | miGetLayerWindow(WindowPtr pWin) |
| 622 | { |
| 623 | return pWin->firstChild; |
| 624 | } |
| 625 | |
| 626 | /****** |
| 627 | * |
| 628 | * miSetShape |
| 629 | * The border/window shape has changed. Recompute winSize/borderSize |
| 630 | * and send appropriate exposure events |
| 631 | */ |
| 632 | |
| 633 | void |
| 634 | miSetShape(WindowPtr pWin, int kind) |
| 635 | { |
| 636 | Bool WasViewable = (Bool) (pWin->viewable); |
| 637 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 638 | Bool anyMarked = FALSE; |
| 639 | WindowPtr pLayerWin; |
| 640 | |
| 641 | if (kind != ShapeInput) { |
| 642 | if (WasViewable) { |
| 643 | anyMarked = (*pScreen->MarkOverlappedWindows) (pWin, pWin, |
| 644 | &pLayerWin); |
| 645 | if (pWin->valdata) { |
| 646 | if (HasBorder(pWin)) { |
| 647 | RegionPtr borderVisible; |
| 648 | |
| 649 | borderVisible = RegionCreate(NullBox, 1); |
| 650 | RegionSubtract(borderVisible, |
| 651 | &pWin->borderClip, &pWin->winSize); |
| 652 | pWin->valdata->before.borderVisible = borderVisible; |
| 653 | } |
| 654 | pWin->valdata->before.resized = TRUE; |
| 655 | } |
| 656 | } |
| 657 | |
| 658 | SetWinSize(pWin); |
| 659 | SetBorderSize(pWin); |
| 660 | |
| 661 | ResizeChildrenWinSize(pWin, 0, 0, 0, 0); |
| 662 | |
| 663 | if (WasViewable) { |
| 664 | anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin, pWin, NULL); |
| 665 | |
| 666 | if (anyMarked) |
| 667 | (*pScreen->ValidateTree) (pLayerWin->parent, NullWindow, |
| 668 | VTOther); |
| 669 | } |
| 670 | |
| 671 | if (WasViewable) { |
| 672 | if (anyMarked) |
| 673 | (*pScreen->HandleExposures) (pLayerWin->parent); |
| 674 | if (anyMarked && pScreen->PostValidateTree) |
| 675 | (*pScreen->PostValidateTree) (pLayerWin->parent, NullWindow, |
| 676 | VTOther); |
| 677 | } |
| 678 | } |
| 679 | if (pWin->realized) |
| 680 | WindowsRestructured(); |
| 681 | CheckCursorConfinement(pWin); |
| 682 | } |
| 683 | |
| 684 | /* Keeps the same inside(!) origin */ |
| 685 | |
| 686 | void |
| 687 | miChangeBorderWidth(WindowPtr pWin, unsigned int width) |
| 688 | { |
| 689 | int oldwidth; |
| 690 | Bool anyMarked = FALSE; |
| 691 | ScreenPtr pScreen; |
| 692 | Bool WasViewable = (Bool) (pWin->viewable); |
| 693 | Bool HadBorder; |
| 694 | WindowPtr pLayerWin; |
| 695 | |
| 696 | oldwidth = wBorderWidth(pWin); |
| 697 | if (oldwidth == width) |
| 698 | return; |
| 699 | HadBorder = HasBorder(pWin); |
| 700 | pScreen = pWin->drawable.pScreen; |
| 701 | if (WasViewable && width < oldwidth) |
| 702 | anyMarked = (*pScreen->MarkOverlappedWindows) (pWin, pWin, &pLayerWin); |
| 703 | |
| 704 | pWin->borderWidth = width; |
| 705 | SetBorderSize(pWin); |
| 706 | |
| 707 | if (WasViewable) { |
| 708 | if (width > oldwidth) { |
| 709 | anyMarked = (*pScreen->MarkOverlappedWindows) (pWin, pWin, |
| 710 | &pLayerWin); |
| 711 | /* |
| 712 | * save the old border visible region to correctly compute |
| 713 | * borderExposed. |
| 714 | */ |
| 715 | if (pWin->valdata && HadBorder) { |
| 716 | RegionPtr borderVisible; |
| 717 | |
| 718 | borderVisible = RegionCreate(NULL, 1); |
| 719 | RegionSubtract(borderVisible, |
| 720 | &pWin->borderClip, &pWin->winSize); |
| 721 | pWin->valdata->before.borderVisible = borderVisible; |
| 722 | } |
| 723 | } |
| 724 | |
| 725 | if (anyMarked) { |
| 726 | (*pScreen->ValidateTree) (pLayerWin->parent, pLayerWin, VTOther); |
| 727 | (*pScreen->HandleExposures) (pLayerWin->parent); |
| 728 | } |
| 729 | if (anyMarked && pScreen->PostValidateTree) |
| 730 | (*pScreen->PostValidateTree) (pLayerWin->parent, pLayerWin, |
| 731 | VTOther); |
| 732 | } |
| 733 | if (pWin->realized) |
| 734 | WindowsRestructured(); |
| 735 | } |
| 736 | |
| 737 | void |
| 738 | miMarkUnrealizedWindow(WindowPtr pChild, WindowPtr pWin, Bool fromConfigure) |
| 739 | { |
| 740 | if ((pChild != pWin) || fromConfigure) { |
| 741 | RegionEmpty(&pChild->clipList); |
| 742 | if (pChild->drawable.pScreen->ClipNotify) |
| 743 | (*pChild->drawable.pScreen->ClipNotify) (pChild, 0, 0); |
| 744 | RegionEmpty(&pChild->borderClip); |
| 745 | } |
| 746 | } |
| 747 | |
| 748 | void |
| 749 | miSegregateChildren(WindowPtr pWin, RegionPtr pReg, int depth) |
| 750 | { |
| 751 | WindowPtr pChild; |
| 752 | |
| 753 | for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) { |
| 754 | if (pChild->drawable.depth == depth) |
| 755 | RegionUnion(pReg, pReg, &pChild->borderClip); |
| 756 | |
| 757 | if (pChild->firstChild) |
| 758 | miSegregateChildren(pChild, pReg, depth); |
| 759 | } |
| 760 | } |