diff options
Diffstat (limited to 'macosx/tkMacOSXScrlbr.c')
| -rw-r--r-- | macosx/tkMacOSXScrlbr.c | 53 |
1 files changed, 52 insertions, 1 deletions
diff --git a/macosx/tkMacOSXScrlbr.c b/macosx/tkMacOSXScrlbr.c index 3658f7e..a34ce88 100644 --- a/macosx/tkMacOSXScrlbr.c +++ b/macosx/tkMacOSXScrlbr.c @@ -7,6 +7,8 @@ * Copyright (c) 1996 by Sun Microsystems, Inc. * Copyright 2001-2009, Apple Inc. * Copyright (c) 2006-2009 Daniel A. Steffen <das@users.sourceforge.net> +* Copyright (c) 2014 Marc Culler. + * Copyright (c) 2014 Kevin Walzer/WordTech Commununications LLC. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. @@ -31,11 +33,22 @@ NSRect TkMacOSXGetScrollFrame(TkScrollbar *scrlPtr); * aware of the state of its Tk parent. This subclass overrides the drawRect * method so that it will not draw itself if the widget is completely outside * of its container. + * + * Custom drawing of the knob seems to work around the flickering visible after + * private API's were removed. Based on technique outlined at + * http://stackoverflow.com/questions/1604682/nsscroller- + * graphical-glitches-lag. Only supported on 10.7 and above. */ + @interface TkNSScroller: NSScroller -(void) drawRect:(NSRect)dirtyRect; - +#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1070 +-(BOOL) isHorizontal; +-(void) drawKnob; +- (void)drawArrow:(NSScrollerArrow)arrow highlightPart:(int)flag; +- (void)drawKnobSlotInRect:(NSRect)rect highlight:(BOOL)highlight; +#endif @end @implementation TkNSScroller @@ -77,6 +90,44 @@ NSRect TkMacOSXGetScrollFrame(TkScrollbar *scrlPtr); } [super drawRect:dirtyRect]; } + + #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1070 +- (BOOL)isHorizontal { + NSRect bounds = [self bounds]; + return NSWidth(bounds) < NSHeight (bounds); +} + + +- (void)drawKnob +{ + NSRect knobRect = [self rectForPart:NSScrollerKnob]; + + if ([self isHorizontal]) { + NSRect newRect = NSMakeRect(knobRect.origin.x, knobRect.origin.y, knobRect.size.width - 5, knobRect.size.height); + NSBezierPath *path = [NSBezierPath bezierPathWithRoundedRect:newRect xRadius:7 yRadius:7]; + + [[NSColor lightGrayColor] set]; + [path fill]; + } else { + NSRect newRect = NSMakeRect(knobRect.origin.x, knobRect.origin.y, knobRect.size.width, knobRect.size.height - 5); + NSBezierPath *path = [NSBezierPath bezierPathWithRoundedRect:newRect xRadius:7 yRadius:7]; + + [[NSColor lightGrayColor] set]; + [path fill]; + } + +} + +- (void)drawArrow:(NSScrollerArrow)arrow highlightPart:(int)flag +{ + // We don't want arrows +} + +- (void)drawKnobSlotInRect:(NSRect)rect highlight:(BOOL)highlight +{ + +} +#endif @end |