| 1 | /* |
| 2 | *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved. |
| 3 | * |
| 4 | *Permission is hereby granted, free of charge, to any person obtaining |
| 5 | * a copy of this software and associated documentation files (the |
| 6 | *"Software"), to deal in the Software without restriction, including |
| 7 | *without limitation the rights to use, copy, modify, merge, publish, |
| 8 | *distribute, sublicense, and/or sell copies of the Software, and to |
| 9 | *permit persons to whom the Software is furnished to do so, subject to |
| 10 | *the following conditions: |
| 11 | * |
| 12 | *The above copyright notice and this permission notice shall be |
| 13 | *included in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 16 | *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 17 | *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 18 | *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR |
| 19 | *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF |
| 20 | *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| 21 | *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 22 | * |
| 23 | *Except as contained in this notice, the name of the XFree86 Project |
| 24 | *shall not be used in advertising or otherwise to promote the sale, use |
| 25 | *or other dealings in this Software without prior written authorization |
| 26 | *from the XFree86 Project. |
| 27 | * |
| 28 | * Authors: Harold L Hunt II |
| 29 | * Kensuke Matsuzaki |
| 30 | */ |
| 31 | |
| 32 | #ifdef HAVE_XWIN_CONFIG_H |
| 33 | #include <xwin-config.h> |
| 34 | #endif |
| 35 | #include "win.h" |
| 36 | |
| 37 | /* |
| 38 | * Prototypes for local functions |
| 39 | */ |
| 40 | |
| 41 | static int |
| 42 | winAddRgn(WindowPtr pWindow, pointer data); |
| 43 | |
| 44 | static |
| 45 | void |
| 46 | winUpdateRgnRootless(WindowPtr pWindow); |
| 47 | |
| 48 | static |
| 49 | void |
| 50 | winReshapeRootless(WindowPtr pWin); |
| 51 | |
| 52 | #ifdef XWIN_NATIVEGDI |
| 53 | /* See Porting Layer Definition - p. 37 */ |
| 54 | /* See mfb/mfbwindow.c - mfbCreateWindow() */ |
| 55 | |
| 56 | Bool |
| 57 | winCreateWindowNativeGDI(WindowPtr pWin) |
| 58 | { |
| 59 | Bool fResult = TRUE; |
| 60 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 61 | |
| 62 | winScreenPriv(pScreen); |
| 63 | |
| 64 | #if CYGDEBUG |
| 65 | winTrace("winCreateWindowNativeGDI (%p)\n", pWin); |
| 66 | #endif |
| 67 | |
| 68 | WIN_UNWRAP(CreateWindow); |
| 69 | fResult = (*pScreen->CreateWindow) (pWin); |
| 70 | WIN_WRAP(CreateWindow, winCreateWindowNativeGDI); |
| 71 | |
| 72 | return fResult; |
| 73 | } |
| 74 | |
| 75 | /* See Porting Layer Definition - p. 37 */ |
| 76 | /* See mfb/mfbwindow.c - mfbDestroyWindow() */ |
| 77 | |
| 78 | Bool |
| 79 | winDestroyWindowNativeGDI(WindowPtr pWin) |
| 80 | { |
| 81 | Bool fResult = TRUE; |
| 82 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 83 | |
| 84 | winScreenPriv(pScreen); |
| 85 | |
| 86 | #if CYGDEBUG |
| 87 | winTrace("winDestroyWindowNativeGDI (%p)\n", pWin); |
| 88 | #endif |
| 89 | |
| 90 | WIN_UNWRAP(DestroyWindow); |
| 91 | fResult = (*pScreen->DestroyWindow) (pWin); |
| 92 | WIN_WRAP(DestroyWindow, winDestroyWindowNativeGDI); |
| 93 | |
| 94 | return fResult; |
| 95 | } |
| 96 | |
| 97 | /* See Porting Layer Definition - p. 37 */ |
| 98 | /* See mfb/mfbwindow.c - mfbPositionWindow() */ |
| 99 | |
| 100 | Bool |
| 101 | winPositionWindowNativeGDI(WindowPtr pWin, int x, int y) |
| 102 | { |
| 103 | Bool fResult = TRUE; |
| 104 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 105 | |
| 106 | winScreenPriv(pScreen); |
| 107 | |
| 108 | #if CYGDEBUG |
| 109 | winTrace("winPositionWindowNativeGDI (%p)\n", pWin); |
| 110 | #endif |
| 111 | |
| 112 | WIN_UNWRAP(PositionWindow); |
| 113 | fResult = (*pScreen->PositionWindow) (pWin, x, y); |
| 114 | WIN_WRAP(PositionWindow, winPositionWindowNativeGDI); |
| 115 | |
| 116 | return fResult; |
| 117 | } |
| 118 | |
| 119 | /* See Porting Layer Definition - p. 39 */ |
| 120 | /* See mfb/mfbwindow.c - mfbCopyWindow() */ |
| 121 | |
| 122 | void |
| 123 | winCopyWindowNativeGDI(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc) |
| 124 | { |
| 125 | DDXPointPtr pptSrc; |
| 126 | DDXPointPtr ppt; |
| 127 | RegionPtr prgnDst; |
| 128 | BoxPtr pBox; |
| 129 | int dx, dy; |
| 130 | int i, nbox; |
| 131 | BoxPtr pBoxDst; |
| 132 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 133 | |
| 134 | winScreenPriv(pScreen); |
| 135 | |
| 136 | #if 0 |
| 137 | ErrorF("winCopyWindow\n"); |
| 138 | #endif |
| 139 | |
| 140 | /* Create a region for the destination */ |
| 141 | prgnDst = RegionCreate(NULL, 1); |
| 142 | |
| 143 | /* Calculate the shift from the source to the destination */ |
| 144 | dx = ptOldOrg.x - pWin->drawable.x; |
| 145 | dy = ptOldOrg.y - pWin->drawable.y; |
| 146 | |
| 147 | /* Translate the region from the destination to the source? */ |
| 148 | RegionTranslate(prgnSrc, -dx, -dy); |
| 149 | RegionIntersect(prgnDst, &pWin->borderClip, prgnSrc); |
| 150 | |
| 151 | /* Get a pointer to the first box in the region to be copied */ |
| 152 | pBox = RegionRects(prgnDst); |
| 153 | |
| 154 | /* Get the number of boxes in the region */ |
| 155 | nbox = RegionNumRects(prgnDst); |
| 156 | |
| 157 | /* Allocate source points for each box */ |
| 158 | if (!(pptSrc = (DDXPointPtr) malloc(nbox * sizeof(DDXPointRec)))) |
| 159 | return; |
| 160 | |
| 161 | /* Set an iterator pointer */ |
| 162 | ppt = pptSrc; |
| 163 | |
| 164 | /* Calculate the source point of each box? */ |
| 165 | for (i = nbox; --i >= 0; ppt++, pBox++) { |
| 166 | ppt->x = pBox->x1 + dx; |
| 167 | ppt->y = pBox->y1 + dy; |
| 168 | } |
| 169 | |
| 170 | /* Setup loop pointers again */ |
| 171 | pBoxDst = RegionRects(prgnDst); |
| 172 | ppt = pptSrc; |
| 173 | |
| 174 | #if 0 |
| 175 | ErrorF("winCopyWindow - x1\tx2\ty1\ty2\tx\ty\n"); |
| 176 | #endif |
| 177 | |
| 178 | /* BitBlt each source to the destination point */ |
| 179 | for (i = nbox; --i >= 0; pBoxDst++, ppt++) { |
| 180 | #if 0 |
| 181 | ErrorF("winCopyWindow - %d\t%d\t%d\t%d\t%d\t%d\n", |
| 182 | pBoxDst->x1, pBoxDst->x2, pBoxDst->y1, pBoxDst->y2, |
| 183 | ppt->x, ppt->y); |
| 184 | #endif |
| 185 | |
| 186 | BitBlt(pScreenPriv->hdcScreen, |
| 187 | pBoxDst->x1, pBoxDst->y1, |
| 188 | pBoxDst->x2 - pBoxDst->x1, pBoxDst->y2 - pBoxDst->y1, |
| 189 | pScreenPriv->hdcScreen, ppt->x, ppt->y, SRCCOPY); |
| 190 | } |
| 191 | |
| 192 | /* Cleanup the regions, etc. */ |
| 193 | free(pptSrc); |
| 194 | RegionDestroy(prgnDst); |
| 195 | } |
| 196 | |
| 197 | /* See Porting Layer Definition - p. 37 */ |
| 198 | /* See mfb/mfbwindow.c - mfbChangeWindowAttributes() */ |
| 199 | |
| 200 | Bool |
| 201 | winChangeWindowAttributesNativeGDI(WindowPtr pWin, unsigned long mask) |
| 202 | { |
| 203 | Bool fResult = TRUE; |
| 204 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 205 | |
| 206 | winScreenPriv(pScreen); |
| 207 | |
| 208 | #if CYGDEBUG |
| 209 | winTrace("winChangeWindowAttributesNativeGDI (%p)\n", pWin); |
| 210 | #endif |
| 211 | |
| 212 | WIN_UNWRAP(ChangeWindowAttributes); |
| 213 | fResult = (*pScreen->ChangeWindowAttributes) (pWin, mask); |
| 214 | WIN_WRAP(ChangeWindowAttributes, winChangeWindowAttributesNativeGDI); |
| 215 | |
| 216 | /* |
| 217 | * NOTE: We do not currently need to do anything here. |
| 218 | */ |
| 219 | |
| 220 | return fResult; |
| 221 | } |
| 222 | |
| 223 | /* See Porting Layer Definition - p. 37 |
| 224 | * Also referred to as UnrealizeWindow |
| 225 | */ |
| 226 | |
| 227 | Bool |
| 228 | winUnmapWindowNativeGDI(WindowPtr pWin) |
| 229 | { |
| 230 | Bool fResult = TRUE; |
| 231 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 232 | |
| 233 | winScreenPriv(pScreen); |
| 234 | |
| 235 | #if CYGDEBUG |
| 236 | winTrace("winUnmapWindowNativeGDI (%p)\n", pWin); |
| 237 | #endif |
| 238 | |
| 239 | WIN_UNWRAP(UnrealizeWindow); |
| 240 | fResult = (*pScreen->UnrealizeWindow) (pWin); |
| 241 | WIN_WRAP(UnrealizeWindow, winUnmapWindowNativeGDI); |
| 242 | |
| 243 | return fResult; |
| 244 | } |
| 245 | |
| 246 | /* See Porting Layer Definition - p. 37 |
| 247 | * Also referred to as RealizeWindow |
| 248 | */ |
| 249 | |
| 250 | Bool |
| 251 | winMapWindowNativeGDI(WindowPtr pWin) |
| 252 | { |
| 253 | Bool fResult = TRUE; |
| 254 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 255 | |
| 256 | winScreenPriv(pScreen); |
| 257 | |
| 258 | #if CYGDEBUG |
| 259 | winTrace("winMapWindowNativeGDI (%p)\n", pWin); |
| 260 | #endif |
| 261 | |
| 262 | WIN_UNWRAP(RealizeWindow); |
| 263 | fResult = (*pScreen->RealizeWindow) (pWin); |
| 264 | WIN_WRAP(RealizeWindow, winMapWindowMultiWindow); |
| 265 | |
| 266 | return fResult; |
| 267 | |
| 268 | } |
| 269 | #endif |
| 270 | |
| 271 | /* See Porting Layer Definition - p. 37 */ |
| 272 | /* See mfb/mfbwindow.c - mfbCreateWindow() */ |
| 273 | |
| 274 | Bool |
| 275 | winCreateWindowRootless(WindowPtr pWin) |
| 276 | { |
| 277 | Bool fResult = FALSE; |
| 278 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 279 | |
| 280 | winWindowPriv(pWin); |
| 281 | winScreenPriv(pScreen); |
| 282 | |
| 283 | #if CYGDEBUG |
| 284 | winTrace("winCreateWindowRootless (%p)\n", pWin); |
| 285 | #endif |
| 286 | |
| 287 | WIN_UNWRAP(CreateWindow); |
| 288 | fResult = (*pScreen->CreateWindow) (pWin); |
| 289 | WIN_WRAP(CreateWindow, winCreateWindowRootless); |
| 290 | |
| 291 | pWinPriv->hRgn = NULL; |
| 292 | |
| 293 | return fResult; |
| 294 | } |
| 295 | |
| 296 | /* See Porting Layer Definition - p. 37 */ |
| 297 | /* See mfb/mfbwindow.c - mfbDestroyWindow() */ |
| 298 | |
| 299 | Bool |
| 300 | winDestroyWindowRootless(WindowPtr pWin) |
| 301 | { |
| 302 | Bool fResult = FALSE; |
| 303 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 304 | |
| 305 | winWindowPriv(pWin); |
| 306 | winScreenPriv(pScreen); |
| 307 | |
| 308 | #if CYGDEBUG |
| 309 | winTrace("winDestroyWindowRootless (%p)\n", pWin); |
| 310 | #endif |
| 311 | |
| 312 | WIN_UNWRAP(DestroyWindow); |
| 313 | fResult = (*pScreen->DestroyWindow) (pWin); |
| 314 | WIN_WRAP(DestroyWindow, winDestroyWindowRootless); |
| 315 | |
| 316 | if (pWinPriv->hRgn != NULL) { |
| 317 | DeleteObject(pWinPriv->hRgn); |
| 318 | pWinPriv->hRgn = NULL; |
| 319 | } |
| 320 | |
| 321 | winUpdateRgnRootless(pWin); |
| 322 | |
| 323 | return fResult; |
| 324 | } |
| 325 | |
| 326 | /* See Porting Layer Definition - p. 37 */ |
| 327 | /* See mfb/mfbwindow.c - mfbPositionWindow() */ |
| 328 | |
| 329 | Bool |
| 330 | winPositionWindowRootless(WindowPtr pWin, int x, int y) |
| 331 | { |
| 332 | Bool fResult = FALSE; |
| 333 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 334 | |
| 335 | winScreenPriv(pScreen); |
| 336 | |
| 337 | #if CYGDEBUG |
| 338 | winTrace("winPositionWindowRootless (%p)\n", pWin); |
| 339 | #endif |
| 340 | |
| 341 | WIN_UNWRAP(PositionWindow); |
| 342 | fResult = (*pScreen->PositionWindow) (pWin, x, y); |
| 343 | WIN_WRAP(PositionWindow, winPositionWindowRootless); |
| 344 | |
| 345 | winUpdateRgnRootless(pWin); |
| 346 | |
| 347 | return fResult; |
| 348 | } |
| 349 | |
| 350 | /* See Porting Layer Definition - p. 37 */ |
| 351 | /* See mfb/mfbwindow.c - mfbChangeWindowAttributes() */ |
| 352 | |
| 353 | Bool |
| 354 | winChangeWindowAttributesRootless(WindowPtr pWin, unsigned long mask) |
| 355 | { |
| 356 | Bool fResult = FALSE; |
| 357 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 358 | |
| 359 | winScreenPriv(pScreen); |
| 360 | |
| 361 | #if CYGDEBUG |
| 362 | winTrace("winChangeWindowAttributesRootless (%p)\n", pWin); |
| 363 | #endif |
| 364 | |
| 365 | WIN_UNWRAP(ChangeWindowAttributes); |
| 366 | fResult = (*pScreen->ChangeWindowAttributes) (pWin, mask); |
| 367 | WIN_WRAP(ChangeWindowAttributes, winChangeWindowAttributesRootless); |
| 368 | |
| 369 | winUpdateRgnRootless(pWin); |
| 370 | |
| 371 | return fResult; |
| 372 | } |
| 373 | |
| 374 | /* See Porting Layer Definition - p. 37 |
| 375 | * Also referred to as UnrealizeWindow |
| 376 | */ |
| 377 | |
| 378 | Bool |
| 379 | winUnmapWindowRootless(WindowPtr pWin) |
| 380 | { |
| 381 | Bool fResult = FALSE; |
| 382 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 383 | |
| 384 | winWindowPriv(pWin); |
| 385 | winScreenPriv(pScreen); |
| 386 | |
| 387 | #if CYGDEBUG |
| 388 | winTrace("winUnmapWindowRootless (%p)\n", pWin); |
| 389 | #endif |
| 390 | |
| 391 | WIN_UNWRAP(UnrealizeWindow); |
| 392 | fResult = (*pScreen->UnrealizeWindow) (pWin); |
| 393 | WIN_WRAP(UnrealizeWindow, winUnmapWindowRootless); |
| 394 | |
| 395 | if (pWinPriv->hRgn != NULL) { |
| 396 | DeleteObject(pWinPriv->hRgn); |
| 397 | pWinPriv->hRgn = NULL; |
| 398 | } |
| 399 | |
| 400 | winUpdateRgnRootless(pWin); |
| 401 | |
| 402 | return fResult; |
| 403 | } |
| 404 | |
| 405 | /* See Porting Layer Definition - p. 37 |
| 406 | * Also referred to as RealizeWindow |
| 407 | */ |
| 408 | |
| 409 | Bool |
| 410 | winMapWindowRootless(WindowPtr pWin) |
| 411 | { |
| 412 | Bool fResult = FALSE; |
| 413 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 414 | |
| 415 | winScreenPriv(pScreen); |
| 416 | |
| 417 | #if CYGDEBUG |
| 418 | winTrace("winMapWindowRootless (%p)\n", pWin); |
| 419 | #endif |
| 420 | |
| 421 | WIN_UNWRAP(RealizeWindow); |
| 422 | fResult = (*pScreen->RealizeWindow) (pWin); |
| 423 | WIN_WRAP(RealizeWindow, winMapWindowRootless); |
| 424 | |
| 425 | winReshapeRootless(pWin); |
| 426 | |
| 427 | winUpdateRgnRootless(pWin); |
| 428 | |
| 429 | return fResult; |
| 430 | } |
| 431 | |
| 432 | void |
| 433 | winSetShapeRootless(WindowPtr pWin, int kind) |
| 434 | { |
| 435 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 436 | |
| 437 | winScreenPriv(pScreen); |
| 438 | |
| 439 | #if CYGDEBUG |
| 440 | winTrace("winSetShapeRootless (%p, %i)\n", pWin, kind); |
| 441 | #endif |
| 442 | |
| 443 | WIN_UNWRAP(SetShape); |
| 444 | (*pScreen->SetShape) (pWin, kind); |
| 445 | WIN_WRAP(SetShape, winSetShapeRootless); |
| 446 | |
| 447 | winReshapeRootless(pWin); |
| 448 | winUpdateRgnRootless(pWin); |
| 449 | |
| 450 | return; |
| 451 | } |
| 452 | |
| 453 | /* |
| 454 | * Local function for adding a region to the Windows window region |
| 455 | */ |
| 456 | |
| 457 | static |
| 458 | int |
| 459 | winAddRgn(WindowPtr pWin, pointer data) |
| 460 | { |
| 461 | int iX, iY, iWidth, iHeight, iBorder; |
| 462 | HRGN hRgn = *(HRGN *) data; |
| 463 | HRGN hRgnWin; |
| 464 | |
| 465 | winWindowPriv(pWin); |
| 466 | |
| 467 | /* If pWin is not Root */ |
| 468 | if (pWin->parent != NULL) { |
| 469 | #if CYGDEBUG |
| 470 | winDebug("winAddRgn ()\n"); |
| 471 | #endif |
| 472 | if (pWin->mapped) { |
| 473 | iBorder = wBorderWidth(pWin); |
| 474 | |
| 475 | iX = pWin->drawable.x - iBorder; |
| 476 | iY = pWin->drawable.y - iBorder; |
| 477 | |
| 478 | iWidth = pWin->drawable.width + iBorder * 2; |
| 479 | iHeight = pWin->drawable.height + iBorder * 2; |
| 480 | |
| 481 | hRgnWin = CreateRectRgn(0, 0, iWidth, iHeight); |
| 482 | |
| 483 | if (hRgnWin == NULL) { |
| 484 | ErrorF("winAddRgn - CreateRectRgn () failed\n"); |
| 485 | ErrorF(" Rect %d %d %d %d\n", |
| 486 | iX, iY, iX + iWidth, iY + iHeight); |
| 487 | } |
| 488 | |
| 489 | if (pWinPriv->hRgn) { |
| 490 | if (CombineRgn(hRgnWin, hRgnWin, pWinPriv->hRgn, RGN_AND) |
| 491 | == ERROR) { |
| 492 | ErrorF("winAddRgn - CombineRgn () failed\n"); |
| 493 | } |
| 494 | } |
| 495 | |
| 496 | OffsetRgn(hRgnWin, iX, iY); |
| 497 | |
| 498 | if (CombineRgn(hRgn, hRgn, hRgnWin, RGN_OR) == ERROR) { |
| 499 | ErrorF("winAddRgn - CombineRgn () failed\n"); |
| 500 | } |
| 501 | |
| 502 | DeleteObject(hRgnWin); |
| 503 | } |
| 504 | return WT_DONTWALKCHILDREN; |
| 505 | } |
| 506 | else { |
| 507 | return WT_WALKCHILDREN; |
| 508 | } |
| 509 | } |
| 510 | |
| 511 | /* |
| 512 | * Local function to update the Windows window's region |
| 513 | */ |
| 514 | |
| 515 | static |
| 516 | void |
| 517 | winUpdateRgnRootless(WindowPtr pWin) |
| 518 | { |
| 519 | HRGN hRgn = CreateRectRgn(0, 0, 0, 0); |
| 520 | |
| 521 | if (hRgn != NULL) { |
| 522 | WalkTree(pWin->drawable.pScreen, winAddRgn, &hRgn); |
| 523 | SetWindowRgn(winGetScreenPriv(pWin->drawable.pScreen)->hwndScreen, |
| 524 | hRgn, TRUE); |
| 525 | } |
| 526 | else { |
| 527 | ErrorF("winUpdateRgnRootless - CreateRectRgn failed.\n"); |
| 528 | } |
| 529 | } |
| 530 | |
| 531 | static |
| 532 | void |
| 533 | winReshapeRootless(WindowPtr pWin) |
| 534 | { |
| 535 | int nRects; |
| 536 | RegionRec rrNewShape; |
| 537 | BoxPtr pShape, pRects, pEnd; |
| 538 | HRGN hRgn, hRgnRect; |
| 539 | |
| 540 | winWindowPriv(pWin); |
| 541 | |
| 542 | #if CYGDEBUG |
| 543 | winDebug("winReshapeRootless ()\n"); |
| 544 | #endif |
| 545 | |
| 546 | /* Bail if the window is the root window */ |
| 547 | if (pWin->parent == NULL) |
| 548 | return; |
| 549 | |
| 550 | /* Bail if the window is not top level */ |
| 551 | if (pWin->parent->parent != NULL) |
| 552 | return; |
| 553 | |
| 554 | /* Free any existing window region stored in the window privates */ |
| 555 | if (pWinPriv->hRgn != NULL) { |
| 556 | DeleteObject(pWinPriv->hRgn); |
| 557 | pWinPriv->hRgn = NULL; |
| 558 | } |
| 559 | |
| 560 | /* Bail if the window has no bounding region defined */ |
| 561 | if (!wBoundingShape(pWin)) |
| 562 | return; |
| 563 | |
| 564 | RegionNull(&rrNewShape); |
| 565 | RegionCopy(&rrNewShape, wBoundingShape(pWin)); |
| 566 | RegionTranslate(&rrNewShape, pWin->borderWidth, pWin->borderWidth); |
| 567 | |
| 568 | nRects = RegionNumRects(&rrNewShape); |
| 569 | pShape = RegionRects(&rrNewShape); |
| 570 | |
| 571 | if (nRects > 0) { |
| 572 | /* Create initial empty Windows region */ |
| 573 | hRgn = CreateRectRgn(0, 0, 0, 0); |
| 574 | |
| 575 | /* Loop through all rectangles in the X region */ |
| 576 | for (pRects = pShape, pEnd = pShape + nRects; pRects < pEnd; pRects++) { |
| 577 | /* Create a Windows region for the X rectangle */ |
| 578 | hRgnRect = CreateRectRgn(pRects->x1, pRects->y1, |
| 579 | pRects->x2, pRects->y2); |
| 580 | if (hRgnRect == NULL) { |
| 581 | ErrorF("winReshapeRootless - CreateRectRgn() failed\n"); |
| 582 | } |
| 583 | |
| 584 | /* Merge the Windows region with the accumulated region */ |
| 585 | if (CombineRgn(hRgn, hRgn, hRgnRect, RGN_OR) == ERROR) { |
| 586 | ErrorF("winReshapeRootless - CombineRgn() failed\n"); |
| 587 | } |
| 588 | |
| 589 | /* Delete the temporary Windows region */ |
| 590 | DeleteObject(hRgnRect); |
| 591 | } |
| 592 | |
| 593 | /* Save a handle to the composite region in the window privates */ |
| 594 | pWinPriv->hRgn = hRgn; |
| 595 | } |
| 596 | |
| 597 | RegionUninit(&rrNewShape); |
| 598 | |
| 599 | return; |
| 600 | } |