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Added checks to remove part of _invalidRect when only part of it is being drawn.

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Removed previous changes to rect invalidation that this replaces. 



git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/branches/gnustep_testplant_branch@38656 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Paul Landers 2015-06-17 23:23:01 +00:00
parent adbe4f1121
commit 3d60883d2a
2 changed files with 41 additions and 9 deletions
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45
Source/NSView.m
View file

@ -2490,10 +2490,6 @@ static void autoresize(CGFloat oldContainerSize,
{
_rFlags.needs_display = subviewNeedsDisplay;
}
else
{
_rFlags.needs_display = NO;
}
}
}
}
@ -2555,14 +2551,48 @@ static void autoresize(CGFloat oldContainerSize,
* If the rect we are going to display contains the _invalidRect
* then we can empty _invalidRect. Do this before the drawing,
* as drawRect: may change this value.
* FIXME: If the drawn rectangle cuts of a complete part of the
* _invalidRect, we should try to reduce this.
* If the drawn rectangle cuts off a complete part of the
* _invalidRect, we should remove that part.
*/
if (NSEqualRects(aRect, NSUnionRect(neededRect, aRect)) == YES)
{
_invalidRect = NSZeroRect;
_rFlags.needs_display = NO;
}
else
{
NSRectEdge sliceEdge = NSNotFound;
int distance = 0;
// check that intersection of aRect and _invalidRect either has an equal height or width to _invalidRect
// eg, if they are equal heights, we might be a slice on the left or right side
NSRect invalidAndRedrawn = NSIntersectionRect(aRect, neededRect);
if ( invalidAndRedrawn.size.height == neededRect.size.height ) {
// then check that aRect contains one of the side (corner?) points of _invalidRect (inclusive)
if ( NSPointInRect(NSMakePoint(NSMinX(neededRect), NSMidY(neededRect)), aRect) ) {
sliceEdge = NSMinXEdge;
distance = invalidAndRedrawn.size.width;
} else if ( NSPointInRect(NSMakePoint(NSMaxX(neededRect), NSMidY(neededRect)), aRect) ) {
sliceEdge = NSMaxXEdge;
distance = invalidAndRedrawn.size.width;
}
} else if ( invalidAndRedrawn.size.width == neededRect.size.width ) {
if ( NSPointInRect(NSMakePoint(NSMidX(neededRect), NSMinY(neededRect)), aRect) ) {
sliceEdge = NSMinYEdge;
distance = invalidAndRedrawn.size.height;
} else if ( NSPointInRect(NSMakePoint(NSMidX(neededRect), NSMaxY(neededRect)), aRect) ) {
sliceEdge = NSMaxYEdge;
distance = invalidAndRedrawn.size.height;
}
}
// remove the drawn area from _invalidRect
if ( sliceEdge != NSNotFound ) {
NSRect newInvalid;
NSDivideRect(_invalidRect, 0, &newInvalid, distance, sliceEdge);
_invalidRect = newInvalid;
}
}
}
if (NSIsEmptyRect(aRect) == NO)
@ -2573,7 +2603,6 @@ static void autoresize(CGFloat oldContainerSize,
[self _lockFocusInContext: context inRect: aRect];
[self drawRect: aRect];
[self unlockFocusNeedsFlush: flush];
_rFlags.needs_display = NO;
}
/*
@ -2816,8 +2845,6 @@ in the main thread.
const NSRect inBaseRounded = NSIntegralRect(inBase);
_invalidRect = [self convertRectFromBase: inBaseRounded];
invalidRect = [_super_view convertRect: _invalidRect fromView: self];
[_super_view setNeedsDisplayInRect: invalidRect];
}
else
{