本文整理汇总了C++中nsRegion::GetBounds方法的典型用法代码示例。如果您正苦于以下问题：C++ nsRegion::GetBounds方法的具体用法？C++ nsRegion::GetBounds怎么用？C++ nsRegion::GetBounds使用的例子？那么恭喜您, 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nsRegion的用法示例。
在下文中一共展示了nsRegion::GetBounds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: printf
/**
* @param aDamagedRegion this region, relative to aWidgetView, is invalidated in
* every widget child of aWidgetView, plus aWidgetView's own widget
*/
void
nsViewManager::InvalidateWidgetArea(nsView *aWidgetView,
const nsRegion &aDamagedRegion)
{
NS_ASSERTION(aWidgetView->GetViewManager() == this,
"InvalidateWidgetArea called on view we don't own");
nsIWidget* widget = aWidgetView->GetWidget();
#if 0
nsRect dbgBounds = aDamagedRegion.GetBounds();
printf("InvalidateWidgetArea view:%X (%d) widget:%X region: %d, %d, %d, %d\n",
aWidgetView, aWidgetView->IsAttachedToTopLevel(),
widget, dbgBounds.x, dbgBounds.y, dbgBounds.width, dbgBounds.height);
#endif
// If the widget is hidden, it don't cover nothing
if (widget) {
bool visible;
widget->IsVisible(visible);
if (!visible)
return;
}
if (!widget) {
// The root view or a scrolling view might not have a widget
// (for example, during printing). We get here when we scroll
// during printing to show selected options in a listbox, for example.
return;
}
// Update all child widgets with the damage. In the process,
// accumulate the union of all the child widget areas, or at least
// some subset of that.
nsRegion children;
if (widget->GetTransparencyMode() != eTransparencyTransparent) {
for (nsIWidget* childWidget = widget->GetFirstChild();
childWidget;
childWidget = childWidget->GetNextSibling()) {
nsView* view = nsView::GetViewFor(childWidget);
NS_ASSERTION(view != aWidgetView, "will recur infinitely");
bool visible;
childWidget->IsVisible(visible);
nsWindowType type;
childWidget->GetWindowType(type);
if (view && visible && type != eWindowType_popup) {
NS_ASSERTION(type == eWindowType_plugin,
"Only plugin or popup widgets can be children!");
// We do not need to invalidate in plugin widgets, but we should
// exclude them from the invalidation region IF we're not on
// Mac. On Mac we need to draw under plugin widgets, because
// plugin widgets are basically invisible
#ifndef XP_MACOSX
// GetBounds should compensate for chrome on a toplevel widget
nsIntRect bounds;
childWidget->GetBounds(bounds);
nsTArray<nsIntRect> clipRects;
childWidget->GetWindowClipRegion(&clipRects);
for (PRUint32 i = 0; i < clipRects.Length(); ++i) {
nsRect rr = (clipRects[i] + bounds.TopLeft()).
ToAppUnits(AppUnitsPerDevPixel());
children.Or(children, rr - aWidgetView->ViewToWidgetOffset());
children.SimplifyInward(20);
}
#endif
}
}
}
nsRegion leftOver;
leftOver.Sub(aDamagedRegion, children);
if (!leftOver.IsEmpty()) {
aWidgetView->SetPendingRefresh(true);
const nsRect* r;
for (nsRegionRectIterator iter(leftOver); (r = iter.Next());) {
nsIntRect bounds = ViewToWidget(aWidgetView, *r);
widget->Invalidate(bounds);
}
}
}