本文整理汇总了C++中LayoutDeviceIntRect::IntersectRect方法的典型用法代码示例。如果您正苦于以下问题：C++ LayoutDeviceIntRect::IntersectRect方法的具体用法？C++ LayoutDeviceIntRect::IntersectRect怎么用？C++ LayoutDeviceIntRect::IntersectRect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LayoutDeviceIntRect的用法示例。
在下文中一共展示了LayoutDeviceIntRect::IntersectRect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: weakFrame
//.........这里部分代码省略.........
LayoutDeviceIntRect rect = mMouseDownRect;
// Check if there are any size constraints on this window.
widget::SizeConstraints sizeConstraints;
if (window) {
nsCOMPtr<nsIWidget> widget;
window->GetMainWidget(getter_AddRefs(widget));
sizeConstraints = widget->GetSizeConstraints();
}
AdjustDimensions(&rect.x, &rect.width, sizeConstraints.mMinSize.width,
sizeConstraints.mMaxSize.width, mouseMove.x, direction.mHorizontal);
AdjustDimensions(&rect.y, &rect.height, sizeConstraints.mMinSize.height,
sizeConstraints.mMaxSize.height, mouseMove.y, direction.mVertical);
// Don't allow resizing a window or a popup past the edge of the screen,
// so adjust the rectangle to fit within the available screen area.
if (window) {
nsCOMPtr<nsIScreen> screen;
nsCOMPtr<nsIScreenManager> sm(do_GetService("@mozilla.org/gfx/screenmanager;1"));
if (sm) {
nsIntRect frameRect = GetScreenRect();
// ScreenForRect requires display pixels, so scale from device pix
double scale;
window->GetUnscaledDevicePixelsPerCSSPixel(&scale);
sm->ScreenForRect(NSToIntRound(frameRect.x / scale),
NSToIntRound(frameRect.y / scale), 1, 1,
getter_AddRefs(screen));
if (screen) {
LayoutDeviceIntRect screenRect;
screen->GetRect(&screenRect.x, &screenRect.y,
&screenRect.width, &screenRect.height);
rect.IntersectRect(rect, screenRect);
}
}
}
else if (menuPopupFrame) {
nsRect frameRect = menuPopupFrame->GetScreenRectInAppUnits();
nsIFrame* rootFrame = aPresContext->PresShell()->FrameManager()->GetRootFrame();
nsRect rootScreenRect = rootFrame->GetScreenRectInAppUnits();
nsPopupLevel popupLevel = menuPopupFrame->PopupLevel();
int32_t appPerDev = aPresContext->AppUnitsPerDevPixel();
LayoutDeviceIntRect screenRect = menuPopupFrame->GetConstraintRect
(LayoutDeviceIntRect::FromAppUnitsToNearest(frameRect, appPerDev),
// round using ...ToInside as it's better to be a pixel too small
// than be too large. If the popup is too large it could get flipped
// to the opposite side of the anchor point while resizing.
LayoutDeviceIntRect::FromAppUnitsToInside(rootScreenRect, appPerDev),
popupLevel);
rect.IntersectRect(rect, screenRect);
}
if (contentToResize) {
// convert the rectangle into css pixels. When changing the size in a
// direction, don't allow the new size to be less that the resizer's
// size. This ensures that content isn't resized too small as to make
// the resizer invisible.
nsRect appUnitsRect = ToAppUnits(rect.ToUnknownRect(), aPresContext->AppUnitsPerDevPixel());
if (appUnitsRect.width < mRect.width && mouseMove.x)
appUnitsRect.width = mRect.width;
if (appUnitsRect.height < mRect.height && mouseMove.y)
appUnitsRect.height = mRect.height;
nsIntRect cssRect = appUnitsRect.ToInsidePixels(nsPresContext::AppUnitsPerCSSPixel());