diff options
Diffstat (limited to 'hw/xwin/winmultiwindowshape.c')
| -rw-r--r-- | hw/xwin/winmultiwindowshape.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/hw/xwin/winmultiwindowshape.c b/hw/xwin/winmultiwindowshape.c new file mode 100644 index 000000000..33deae337 --- /dev/null +++ b/hw/xwin/winmultiwindowshape.c @@ -0,0 +1,211 @@ +/* + *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved. + * + *Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + *"Software"), to deal in the Software without restriction, including + *without limitation the rights to use, copy, modify, merge, publish, + *distribute, sublicense, and/or sell copies of the Software, and to + *permit persons to whom the Software is furnished to do so, subject to + *the following conditions: + * + *The above copyright notice and this permission notice shall be + *included in all copies or substantial portions of the Software. + * + *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR + *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF + *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + *Except as contained in this notice, the name of the XFree86 Project + *shall not be used in advertising or otherwise to promote the sale, use + *or other dealings in this Software without prior written authorization + *from the XFree86 Project. + * + * Authors: Kensuke Matsuzaki + * Harold L Hunt II + */ + +#ifdef HAVE_XWIN_CONFIG_H +#include <xwin-config.h> +#endif +#ifdef SHAPE + +#include "win.h" + + +/* + * winSetShapeMultiWindow - See Porting Layer Definition - p. 42 + */ + +void +winSetShapeMultiWindow (WindowPtr pWin) +{ + ScreenPtr pScreen = pWin->drawable.pScreen; + winWindowPriv(pWin); + winScreenPriv(pScreen); + +#if CYGMULTIWINDOW_DEBUG + ErrorF ("winSetShapeMultiWindow - pWin: %08x\n", pWin); +#endif + + WIN_UNWRAP(SetShape); + (*pScreen->SetShape)(pWin); + WIN_WRAP(SetShape, winSetShapeMultiWindow); + + /* Update the Windows window's shape */ + winReshapeMultiWindow (pWin); + winUpdateRgnMultiWindow (pWin); + + return; +} + + +/* + * winUpdateRgnMultiWindow - Local function to update a Windows window region + */ + +void +winUpdateRgnMultiWindow (WindowPtr pWin) +{ + SetWindowRgn (winGetWindowPriv(pWin)->hWnd, + winGetWindowPriv(pWin)->hRgn, TRUE); +} + + +/* + * winReshapeMultiWindow - Computes the composite clipping region for a window + */ + +void +winReshapeMultiWindow (WindowPtr pWin) +{ + int nRects; + RegionRec rrNewShape; + BoxPtr pShape, pRects, pEnd; + HRGN hRgn, hRgnRect; + winWindowPriv(pWin); + +#if CYGDEBUG + winDebug ("winReshape ()\n"); +#endif + + /* Bail if the window is the root window */ + if (pWin->parent == NULL) + return; + + /* Bail if the window is not top level */ + if (pWin->parent->parent != NULL) + return; + + /* Bail if Windows window handle is invalid */ + if (pWinPriv->hWnd == NULL) + return; + + /* Free any existing window region stored in the window privates */ + if (pWinPriv->hRgn != NULL) + { + DeleteObject (pWinPriv->hRgn); + pWinPriv->hRgn = NULL; + } + + /* Bail if the window has no bounding region defined */ + if (!wBoundingShape (pWin)) + return; + + REGION_NULL(pWin->drawable.pScreen, &rrNewShape); + REGION_COPY(pWin->drawable.pScreen, &rrNewShape, wBoundingShape(pWin)); + REGION_TRANSLATE(pWin->drawable.pScreen, + &rrNewShape, + pWin->borderWidth, + pWin->borderWidth); + + nRects = REGION_NUM_RECTS(&rrNewShape); + pShape = REGION_RECTS(&rrNewShape); + + /* Don't do anything if there are no rectangles in the region */ + if (nRects > 0) + { + RECT rcClient; + RECT rcWindow; + int iOffsetX, iOffsetY; + + /* Get client rectangle */ + if (!GetClientRect (pWinPriv->hWnd, &rcClient)) + { + ErrorF ("winReshape - GetClientRect failed, bailing: %d\n", + (int) GetLastError ()); + return; + } + + /* Translate client rectangle coords to screen coords */ + /* NOTE: Only transforms top and left members */ + ClientToScreen (pWinPriv->hWnd, (LPPOINT) &rcClient); + + /* Get window rectangle */ + if (!GetWindowRect (pWinPriv->hWnd, &rcWindow)) + { + ErrorF ("winReshape - GetWindowRect failed, bailing: %d\n", + (int) GetLastError ()); + return; + } + + /* Calculate offset from window upper-left to client upper-left */ + iOffsetX = rcClient.left - rcWindow.left; + iOffsetY = rcClient.top - rcWindow.top; + + /* Create initial Windows region for title bar */ + /* FIXME: Mean, nasty, ugly hack!!! */ + hRgn = CreateRectRgn (0, 0, rcWindow.right, iOffsetY); + if (hRgn == NULL) + { + ErrorF ("winReshape - Initial CreateRectRgn (%d, %d, %d, %d) " + "failed: %d\n", + 0, 0, (int) rcWindow.right, iOffsetY, (int) GetLastError ()); + } + + /* Loop through all rectangles in the X region */ + for (pRects = pShape, pEnd = pShape + nRects; pRects < pEnd; pRects++) + { + /* Create a Windows region for the X rectangle */ + hRgnRect = CreateRectRgn (pRects->x1 + iOffsetX, + pRects->y1 + iOffsetY, + pRects->x2 + iOffsetX, + pRects->y2 + iOffsetY); + if (hRgnRect == NULL) + { + ErrorF ("winReshape - Loop CreateRectRgn (%d, %d, %d, %d) " + "failed: %d\n" + "\tx1: %d x2: %d xOff: %d y1: %d y2: %d yOff: %d\n", + pRects->x1 + iOffsetX, + pRects->y1 + iOffsetY, + pRects->x2 + iOffsetX, + pRects->y2 + iOffsetY, + (int) GetLastError (), + pRects->x1, pRects->x2, iOffsetX, + pRects->y1, pRects->y2, iOffsetY); + } + + /* Merge the Windows region with the accumulated region */ + if (CombineRgn (hRgn, hRgn, hRgnRect, RGN_OR) == ERROR) + { + ErrorF ("winReshape - CombineRgn () failed: %d\n", + (int) GetLastError ()); + } + + /* Delete the temporary Windows region */ + DeleteObject (hRgnRect); + } + + /* Save a handle to the composite region in the window privates */ + pWinPriv->hRgn = hRgn; + } + + REGION_UNINIT(pWin->drawable.pScreen, &rrNewShape); + + return; +} +#endif |