ClippingWindow::ClippingWindow(BRect frame)
: BWindow(frame, "Window", B_TITLED_WINDOW, B_QUIT_ON_WINDOW_CLOSE)
{
fView = new ClippingView(frame.OffsetToSelf(0, 0));
AddChild(fView);
fView->MakeFocus();
}
/*! Offsets a rectangle's location so that it lies fully in a given rectangular
frame.
If the rectangle is too wide/high to fully fit in the frame, its left/top
edge is offset to 0. The rect's size always remains unchanged.
\param rect The rectangle to be moved.
\param frameSize The size of the frame the rect shall be moved into. The
frame's left-top is (0, 0).
\return The modified rect.
*/
/*static*/ BRect
BLayoutUtils::MoveIntoFrame(BRect rect, BSize frameSize)
{
BPoint leftTop(rect.LeftTop());
// enforce horizontal limits; favor left edge
if (rect.right > frameSize.width)
leftTop.x -= rect.right - frameSize.width;
if (leftTop.x < 0)
leftTop.x = 0;
// enforce vertical limits; favor top edge
if (rect.bottom > frameSize.height)
leftTop.y -= rect.bottom - frameSize.height;
if (leftTop.y < 0)
leftTop.y = 0;
return rect.OffsetToSelf(leftTop);
}