本文整理汇总了C++中PictureScreenPtr::ChangePictureClip方法的典型用法代码示例。如果您正苦于以下问题：C++ PictureScreenPtr::ChangePictureClip方法的具体用法？C++ PictureScreenPtr::ChangePictureClip怎么用？C++ PictureScreenPtr::ChangePictureClip使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PictureScreenPtr的用法示例。
在下文中一共展示了PictureScreenPtr::ChangePictureClip方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: dmxChangePictureClip
/** Change the picture's list of clip rectangles. */
int dmxChangePictureClip(PicturePtr pPicture, int clipType,
pointer value, int n)
{
ScreenPtr pScreen = pPicture->pDrawable->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
PictureScreenPtr ps = GetPictureScreen(pScreen);
dmxPictPrivPtr pPictPriv = DMX_GET_PICT_PRIV(pPicture);
DMX_UNWRAP(ChangePictureClip, dmxScreen, ps);
#if 1
if (ps->ChangePictureClip)
ps->ChangePictureClip(pPicture, clipType, value, n);
#endif
/* Change picture clip rects on back-end server */
if (pPictPriv->pict) {
/* The clip has already been changed into a region by the mi
* routine called above.
*/
if (pPicture->clientClip) {
RegionPtr pClip = pPicture->clientClip;
BoxPtr pBox = REGION_RECTS(pClip);
int nBox = REGION_NUM_RECTS(pClip);
XRectangle *pRects;
XRectangle *pRect;
int nRects;
nRects = nBox;
pRects = pRect = xalloc(nRects * sizeof(*pRect));
while (nBox--) {
pRect->x = pBox->x1;
pRect->y = pBox->y1;
pRect->width = pBox->x2 - pBox->x1;
pRect->height = pBox->y2 - pBox->y1;
pBox++;
pRect++;
}
XRenderSetPictureClipRectangles(dmxScreen->beDisplay,
pPictPriv->pict,
0, 0,
pRects,
nRects);
xfree(pRects);
} else {
XRenderSetPictureClipRectangles(dmxScreen->beDisplay,
pPictPriv->pict,
0, 0, NULL, 0);
}
dmxSync(dmxScreen, FALSE);
} else {
/* FIXME: Handle saving clip region when offscreen */
}
DMX_WRAP(ChangePictureClip, dmxChangePictureClip, dmxScreen, ps);
return Success;
}