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Diffstat (limited to 'Frameworks/BWToolkitFramework.framework/BWTransparentScroller.m')
| -rw-r--r-- | Frameworks/BWToolkitFramework.framework/BWTransparentScroller.m | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/Frameworks/BWToolkitFramework.framework/BWTransparentScroller.m b/Frameworks/BWToolkitFramework.framework/BWTransparentScroller.m new file mode 100644 index 00000000..636aaffc --- /dev/null +++ b/Frameworks/BWToolkitFramework.framework/BWTransparentScroller.m @@ -0,0 +1,251 @@ +// +// BWTransparentScroller.m +// BWToolkit +// +// Created by Brandon Walkin (www.brandonwalkin.com) +// All code is provided under the New BSD license. +// + +#import "BWTransparentScroller.h" + +// Vertical scroller +static NSImage *knobTop, *knobVerticalFill, *knobBottom, *slotTop, *slotVerticalFill, *slotBottom; +static float verticalPaddingLeft = 0.0; +static float verticalPaddingRight = 1.0; +static float verticalPaddingTop = 2.0; +static float verticalPaddingBottom = 0.0; +static float minKnobHeight; + +// Horizontal scroller +static NSImage *knobLeft, *knobHorizontalFill, *knobRight, *slotLeft, *slotHorizontalFill, *slotRight; +static float horizontalPaddingLeft = 2.0; +static float horizontalPaddingRight = 2.0; +static float horizontalPaddingTop = 0.0; +static float horizontalPaddingBottom = 1.0; +static float minKnobWidth; + +static NSColor *backgroundColor; + +@interface BWTransparentScroller (BWTSPrivate) +- (void)drawKnobSlot; +@end + +@interface NSScroller (BWTSPrivate) +- (NSRect)_drawingRectForPart:(NSScrollerPart)aPart; +@end + +@implementation BWTransparentScroller + ++ (void)initialize +{ + NSBundle *bundle = [NSBundle bundleForClass:[BWTransparentScroller class]]; + + // Vertical scroller + knobTop = [[NSImage alloc] initWithContentsOfFile:[bundle pathForImageResource:@"TransparentScrollerKnobTop.tif"]]; + knobVerticalFill = [[NSImage alloc] initWithContentsOfFile:[bundle pathForImageResource:@"TransparentScrollerKnobVerticalFill.tif"]]; + knobBottom = [[NSImage alloc] initWithContentsOfFile:[bundle pathForImageResource:@"TransparentScrollerKnobBottom.tif"]]; + slotTop = [[NSImage alloc] initWithContentsOfFile:[bundle pathForImageResource:@"TransparentScrollerSlotTop.tif"]]; + slotVerticalFill = [[NSImage alloc] initWithContentsOfFile:[bundle pathForImageResource:@"TransparentScrollerSlotVerticalFill.tif"]]; + slotBottom = [[NSImage alloc] initWithContentsOfFile:[bundle pathForImageResource:@"TransparentScrollerSlotBottom.tif"]]; + + // Horizontal scroller + knobLeft = [[NSImage alloc] initWithContentsOfFile:[bundle pathForImageResource:@"TransparentScrollerKnobLeft.tif"]]; + knobHorizontalFill = [[NSImage alloc] initWithContentsOfFile:[bundle pathForImageResource:@"TransparentScrollerKnobHorizontalFill.tif"]]; + knobRight = [[NSImage alloc] initWithContentsOfFile:[bundle pathForImageResource:@"TransparentScrollerKnobRight.tif"]]; + slotLeft = [[NSImage alloc] initWithContentsOfFile:[bundle pathForImageResource:@"TransparentScrollerSlotLeft.tif"]]; + slotHorizontalFill = [[NSImage alloc] initWithContentsOfFile:[bundle pathForImageResource:@"TransparentScrollerSlotHorizontalFill.tif"]]; + slotRight = [[NSImage alloc] initWithContentsOfFile:[bundle pathForImageResource:@"TransparentScrollerSlotRight.tif"]]; + + backgroundColor = [[NSColor colorWithCalibratedWhite:0.13 alpha:0.855] retain]; + + minKnobHeight = knobTop.size.height + knobVerticalFill.size.height + knobBottom.size.height + 10; + minKnobWidth = knobLeft.size.width + knobHorizontalFill.size.width + knobRight.size.width + 10; +} + +- (id)initWithFrame:(NSRect)frameRect; +{ + if (self = [super initWithFrame:frameRect]) + { + [self setArrowsPosition:NSScrollerArrowsNone]; + + if ([self bounds].size.width / [self bounds].size.height < 1) + isVertical = YES; + else + isVertical = NO; + } + + return self; +} + +- (id)initWithCoder:(NSCoder *)decoder; +{ + if (self = [super initWithCoder:decoder]) + { + [self setArrowsPosition:NSScrollerArrowsNone]; + + if ([self bounds].size.width / [self bounds].size.height < 1) + isVertical = YES; + else + isVertical = NO; + } + + return self; +} + ++ (CGFloat)scrollerWidth +{ + return slotVerticalFill.size.width + verticalPaddingLeft + verticalPaddingRight; +} + ++ (CGFloat)scrollerWidthForControlSize:(NSControlSize)controlSize +{ + return slotVerticalFill.size.width + verticalPaddingLeft + verticalPaddingRight; +} + +- (void)drawRect:(NSRect)aRect; +{ + [backgroundColor set]; + NSRectFill([self bounds]); + + // Only draw if the slot is larger than the knob + if (isVertical && ([self bounds].size.height - verticalPaddingTop - verticalPaddingBottom + 1) > minKnobHeight) + { + [self drawKnobSlot]; + + if ([self knobProportion] > 0.0) + [self drawKnob]; + } + else if (!isVertical && ([self bounds].size.width - horizontalPaddingLeft - horizontalPaddingRight + 1) > minKnobWidth) + { + [self drawKnobSlot]; + + if ([self knobProportion] > 0.0) + [self drawKnob]; + } +} + +- (void)drawKnobSlot; +{ + NSRect slotRect = [self rectForPart:NSScrollerKnobSlot]; + + if (isVertical) + NSDrawThreePartImage(slotRect, slotTop, slotVerticalFill, slotBottom, YES, NSCompositeSourceOver, 1, NO); + else + NSDrawThreePartImage(slotRect, slotLeft, slotHorizontalFill, slotRight, NO, NSCompositeSourceOver, 1, NO); +} + +- (void)drawKnob; +{ + NSRect knobRect = [self rectForPart:NSScrollerKnob]; + + if (isVertical) + NSDrawThreePartImage(knobRect, knobTop, knobVerticalFill, knobBottom, YES, NSCompositeSourceOver, 1, NO); + else + NSDrawThreePartImage(knobRect, knobLeft, knobHorizontalFill, knobRight, NO, NSCompositeSourceOver, 1, NO); +} + +- (NSRect)_drawingRectForPart:(NSScrollerPart)aPart; +{ + // Call super even though we're not using its value (has some side effects we need) + [super _drawingRectForPart:aPart]; + + // Return our own rects rather than use the default behavior + return [self rectForPart:aPart]; +} + +- (NSRect)rectForPart:(NSScrollerPart)aPart; +{ + switch (aPart) + { + case NSScrollerNoPart: + return [self bounds]; + break; + case NSScrollerKnob: + { + NSRect knobRect; + NSRect slotRect = [self rectForPart:NSScrollerKnobSlot]; + + if (isVertical) + { + float knobHeight = roundf(slotRect.size.height * [self knobProportion]); + + if (knobHeight < minKnobHeight) + knobHeight = minKnobHeight; + + float knobY = slotRect.origin.y + roundf((slotRect.size.height - knobHeight) * [self floatValue]); + knobRect = NSMakeRect(verticalPaddingLeft, knobY, slotRect.size.width, knobHeight); + } + else + { + float knobWidth = roundf(slotRect.size.width * [self knobProportion]); + + if (knobWidth < minKnobWidth) + knobWidth = minKnobWidth; + + float knobX = slotRect.origin.x + roundf((slotRect.size.width - knobWidth) * [self floatValue]); + knobRect = NSMakeRect(knobX, horizontalPaddingTop, knobWidth, slotRect.size.height); + } + + return knobRect; + } + break; + case NSScrollerKnobSlot: + { + NSRect slotRect; + + if (isVertical) + slotRect = NSMakeRect(verticalPaddingLeft, verticalPaddingTop, [self bounds].size.width - verticalPaddingLeft - verticalPaddingRight, [self bounds].size.height - verticalPaddingTop - verticalPaddingBottom); + else + slotRect = NSMakeRect(horizontalPaddingLeft, horizontalPaddingTop, [self bounds].size.width - horizontalPaddingLeft - horizontalPaddingRight, [self bounds].size.height - horizontalPaddingTop - horizontalPaddingBottom); + + return slotRect; + } + break; + case NSScrollerIncrementLine: + return NSZeroRect; + break; + case NSScrollerDecrementLine: + return NSZeroRect; + break; + case NSScrollerIncrementPage: + { + NSRect incrementPageRect; + NSRect knobRect = [self rectForPart:NSScrollerKnob]; + NSRect slotRect = [self rectForPart:NSScrollerKnobSlot]; + NSRect decPageRect = [self rectForPart:NSScrollerDecrementPage]; + + if (isVertical) + { + float knobY = knobRect.origin.y + knobRect.size.height; + incrementPageRect = NSMakeRect(verticalPaddingLeft, knobY, knobRect.size.width, slotRect.size.height - knobRect.size.height - decPageRect.size.height); + } + else + { + float knobX = knobRect.origin.x + knobRect.size.width; + incrementPageRect = NSMakeRect(knobX, horizontalPaddingTop, (slotRect.size.width + horizontalPaddingLeft) - knobX, knobRect.size.height); + } + + return incrementPageRect; + } + break; + case NSScrollerDecrementPage: + { + NSRect decrementPageRect; + NSRect knobRect = [self rectForPart:NSScrollerKnob]; + + if (isVertical) + decrementPageRect = NSMakeRect(verticalPaddingLeft, verticalPaddingTop, knobRect.size.width, knobRect.origin.y - verticalPaddingTop); + else + decrementPageRect = NSMakeRect(horizontalPaddingLeft, horizontalPaddingTop, knobRect.origin.x - horizontalPaddingLeft, knobRect.size.height); + + return decrementPageRect; + } + break; + default: + break; + } + + return NSZeroRect; +} + +@end |