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Optionally use images for On or Off states #8

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Optionally use images for On or Off states #8

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58a2e01
Add ability to use images for On and Off states.
rhwood Oct 18, 2011
6cf4a27
Merge remote-tracking branch 'upstream/master'
rhwood Jun 7, 2013
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6 changes: 4 additions & 2 deletions DCRoundSwitch/DCRoundSwitch.h
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Original file line number Diff line number Diff line change
Expand Up @@ -20,8 +20,10 @@

@property (nonatomic, retain) UIColor *onTintColor; // default: blue (matches normal UISwitch)
@property (nonatomic, getter=isOn) BOOL on; // default: NO
@property (nonatomic, copy) NSString *onText; // default: 'ON' - automatically localized
@property (nonatomic, copy) NSString *offText; // default: 'OFF' - automatically localized
@property (nonatomic, copy) NSString *onText; // default: 'ON' - not automatically localized!
@property (nonatomic, copy) NSString *offText; // default: 'OFF' - not automatically localized!
@property (nonatomic, copy) UIImage *onImage;
@property (nonatomic, copy) UIImage *offImage;

+ (Class)knobLayerClass;
+ (Class)outlineLayerClass;
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26 changes: 25 additions & 1 deletion DCRoundSwitch/DCRoundSwitch.m
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Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,7 @@ - (void)positionLayersAndMask;

@implementation DCRoundSwitch
@synthesize outlineLayer, toggleLayer, knobLayer, clipLayer, ignoreTap;
@synthesize on, onText, offText;
@synthesize on, onText, offText, onImage, offImage;
@synthesize onTintColor;

#pragma mark -
Expand All @@ -47,6 +47,8 @@ - (void)dealloc
[onTintColor release];
[onText release];
[offText release];
[onImage release];
[offImage release];

[super dealloc];
}
Expand Down Expand Up @@ -465,4 +467,26 @@ - (void)setOffText:(NSString *)newOffText
}
}

- (void)setOnImage:(UIImage *)newOnImage
{
if (newOnImage != onImage)
{
[onImage release];
onImage = [newOnImage copy];
toggleLayer.onImage = onImage;
[toggleLayer setNeedsDisplay];
}
}

- (void)setOffImage:(UIImage *)newOffImage
{
if (newOffImage != offImage)
{
[offImage release];
offImage = [newOffImage copy];
toggleLayer.offImage = offImage;
[toggleLayer setNeedsDisplay];
}
}

@end
3 changes: 3 additions & 0 deletions DCRoundSwitch/DCRoundSwitchToggleLayer.h
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Original file line number Diff line number Diff line change
Expand Up @@ -17,10 +17,13 @@
@property (nonatomic, retain) UIColor *onTintColor;
@property (nonatomic, retain) NSString *onString;
@property (nonatomic, retain) NSString *offString;
@property (nonatomic, retain) UIImage *onImage;
@property (nonatomic, retain) UIImage *offImage;
@property (nonatomic, readonly) UIFont *labelFont;
@property (nonatomic) BOOL drawOnTint;
@property (nonatomic) BOOL clip;

- (id)initWithOnString:(NSString *)anOnString offString:(NSString *)anOffString onTintColor:(UIColor *)anOnTintColor;
- (id)initWithOnImage:(UIImage *)anOnImage offImage:(UIImage *)anOffImage onTintColor:(UIColor *)anOnTintColor;

@end
64 changes: 46 additions & 18 deletions DCRoundSwitch/DCRoundSwitchToggleLayer.m
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@
#import "DCRoundSwitchToggleLayer.h"

@implementation DCRoundSwitchToggleLayer
@synthesize onString, offString, onTintColor;
@synthesize onString, offString, onImage, offImage, onTintColor;
@synthesize drawOnTint;
@synthesize clip;
@synthesize labelFont;
Expand All @@ -22,6 +22,8 @@ - (void)dealloc
[onString release];
[offString release];
[onTintColor release];
[onImage release];
[offImage release];

[super dealloc];
}
Expand All @@ -33,11 +35,25 @@ - (id)initWithOnString:(NSString *)anOnString offString:(NSString *)anOffString
self.onString = anOnString;
self.offString = anOffString;
self.onTintColor = anOnTintColor;
self.onImage = nil;
self.offImage = nil;
}

return self;
}

- (id)initWithOnImage:(UIImage *)anOnImage offImage:(UIImage *)anOffImage onTintColor:(UIColor *)anOnTintColor
{
if ((self = [super init]))
{
self.onImage = anOnImage;
self.offImage = anOffImage;
self.onTintColor = anOnTintColor;
}

return self;
}

- (UIFont *)labelFont
{
return [UIFont boldSystemFontOfSize:ceilf(self.bounds.size.height * .6)];
Expand Down Expand Up @@ -79,23 +95,35 @@ - (void)drawInContext:(CGContextRef)context
CGFloat textSpaceWidth = (self.bounds.size.width / 2) - (knobRadius / 2);

UIGraphicsPushContext(context);

// 'ON' state label (self.onString)
CGSize onTextSize = [self.onString sizeWithFont:self.labelFont];
CGPoint onTextPoint = CGPointMake((textSpaceWidth - onTextSize.width) / 2.0 + knobRadius * .15, floorf((self.bounds.size.height - onTextSize.height) / 2.0) + 1.0);
[[UIColor colorWithWhite:0.45 alpha:1.0] set]; // .2 & .4
[self.onString drawAtPoint:CGPointMake(onTextPoint.x, onTextPoint.y - 1.0) withFont:self.labelFont];
[[UIColor whiteColor] set];
[self.onString drawAtPoint:onTextPoint withFont:self.labelFont];

// 'OFF' state label (self.offString)
CGSize offTextSize = [self.offString sizeWithFont:self.labelFont];
CGPoint offTextPoint = CGPointMake(textSpaceWidth + (textSpaceWidth - offTextSize.width) / 2.0 + knobRadius * .86, floorf((self.bounds.size.height - offTextSize.height) / 2.0) + 1.0);
[[UIColor whiteColor] set];
[self.offString drawAtPoint:CGPointMake(offTextPoint.x, offTextPoint.y + 1.0) withFont:self.labelFont];
[[UIColor colorWithWhite:0.52 alpha:1.0] set];
[self.offString drawAtPoint:offTextPoint withFont:self.labelFont];

//withOffset:drawPercent * (boundsRect.size.width - knobWidth)
//inTrackWidth:(boundsRect.size.width - knobWidth)];

if (self.onImage) {
CGPoint onImagePoint = CGPointMake((textSpaceWidth - self.onImage.size.width) / 2.0 + knobRadius * .15, floorf((self.bounds.size.height - self.onImage.size.height) / 2.0) + 1.0);
[self.onImage drawAtPoint:onImagePoint];
} else {
// 'ON' state label (self.onString)
CGSize onTextSize = [self.onString sizeWithFont:self.labelFont];
CGPoint onTextPoint = CGPointMake((textSpaceWidth - onTextSize.width) / 2.0 + knobRadius * .15, floorf((self.bounds.size.height - onTextSize.height) / 2.0) + 1.0);
[[UIColor colorWithWhite:0.45 alpha:1.0] set]; // .2 & .4
[self.onString drawAtPoint:CGPointMake(onTextPoint.x, onTextPoint.y - 1.0) withFont:self.labelFont];
[[UIColor whiteColor] set];
[self.onString drawAtPoint:onTextPoint withFont:self.labelFont];
}

if (self.offImage) {
CGPoint offImagePoint = CGPointMake(textSpaceWidth + (textSpaceWidth - self.onImage.size.width) / 2.0 + knobRadius * .86, floorf((self.bounds.size.height - self.onImage.size.height) / 2.0) + 1.0);
[offImage drawAtPoint:offImagePoint];
} else {
// 'OFF' state label (self.offString)
CGSize offTextSize = [self.offString sizeWithFont:self.labelFont];
CGPoint offTextPoint = CGPointMake(textSpaceWidth + (textSpaceWidth - offTextSize.width) / 2.0 + knobRadius * .86, floorf((self.bounds.size.height - offTextSize.height) / 2.0) + 1.0);
[[UIColor whiteColor] set];
[self.offString drawAtPoint:CGPointMake(offTextPoint.x, offTextPoint.y + 1.0) withFont:self.labelFont];
[[UIColor colorWithWhite:0.52 alpha:1.0] set];
[self.offString drawAtPoint:offTextPoint withFont:self.labelFont];
}

UIGraphicsPopContext();
}

Expand Down