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Enable horizontal scrolling with shift key.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@16584 72102866-910b-0410-8b05-ffd578937521
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CaS 2003-04-30 05:03:50 +00:00
parent 875c9987d9
commit bbe694fe43
2 changed files with 40 additions and 14 deletions
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49
Source/NSScrollView.m
View file

@ -290,7 +290,7 @@ static float scrollerWidth;
- (void) scrollWheel: (NSEvent *)theEvent
{
NSRect clipViewBounds;
float deltaY = [theEvent deltaY];
float delta = [theEvent deltaY];
float amount;
NSPoint point;
@ -303,25 +303,46 @@ static float scrollerWidth;
clipViewBounds = [_contentView bounds];
}
point = clipViewBounds.origin;
if (([theEvent modifierFlags] & NSAlternateKeyMask) == NSAlternateKeyMask)
if (_hasHorizScroller == YES
&& ([theEvent modifierFlags] & NSShiftKeyMask) == NSShiftKeyMask)
{
amount = - (clipViewBounds.size.height - _vPageScroll) * deltaY;
if (([theEvent modifierFlags] & NSAlternateKeyMask) == NSAlternateKeyMask)
{
amount = - (clipViewBounds.size.width - _hPageScroll) * delta;
}
else
{
amount = - _hLineScroll * delta;
}
NSDebugLLog (@"NSScrollView",
@"increment/decrement: amount = %f, horizontal", amount);
point.x = clipViewBounds.origin.x + amount;
}
else
{
amount = - _vLineScroll * deltaY;
}
if (([theEvent modifierFlags] & NSAlternateKeyMask) == NSAlternateKeyMask)
{
amount = - (clipViewBounds.size.height - _vPageScroll) * delta;
}
else
{
amount = - _vLineScroll * delta;
}
if (_contentView != nil && !_contentView->_rFlags.flipped_view)
{
/* If view is flipped reverse the scroll direction */
amount = -amount;
}
NSDebugLLog (@"NSScrollView",
@"increment/decrement: amount = %f, flipped = %d",
amount, _contentView ? _contentView->_rFlags.flipped_view : 0);
if (_contentView != nil && !_contentView->_rFlags.flipped_view)
{
/* If view is flipped reverse the scroll direction */
amount = -amount;
}
NSDebugLLog (@"NSScrollView",
@"increment/decrement: amount = %f, flipped = %d",
amount, _contentView ? _contentView->_rFlags.flipped_view : 0);
point.y = clipViewBounds.origin.y + amount;
point.y = clipViewBounds.origin.y + amount;
}
/* scrollToPoint: will call reflectScrolledClipView:, which will
* update rules, headers, and scrollers. */