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/*
*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
#include "win.h"
/*
* winSetShapeMultiWindow - See Porting Layer Definition - p. 42
*/
void
winSetShapeMultiWindow(WindowPtr pWin, int kind)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
winScreenPriv(pScreen);
#if CYGMULTIWINDOW_DEBUG
ErrorF("winSetShapeMultiWindow - pWin: %08x kind: %i\n", pWin, kind);
#endif
WIN_UNWRAP(SetShape);
(*pScreen->SetShape) (pWin, kind);
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);
/* The system now owns the region specified by the region handle and will delete it when it is no longer needed. */
winGetWindowPriv(pWin)->hRgn = NULL;
}
/*
* 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;
RegionNull(&rrNewShape);
RegionCopy(&rrNewShape, wBoundingShape(pWin));
RegionTranslate(&rrNewShape, pWin->borderWidth, pWin->borderWidth);
nRects = RegionNumRects(&rrNewShape);
pShape = RegionRects(&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;
}
RegionUninit(&rrNewShape);
return;
}
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