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Image support (onImage offImage). #9

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Image support (onImage offImage). #9

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3 changes: 3 additions & 0 deletions Classes/DDPageControl.h
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Original file line number Diff line number Diff line change
Expand Up @@ -51,5 +51,8 @@ DDPageControlType ;
@property (nonatomic) CGFloat indicatorDiameter ;
@property (nonatomic) CGFloat indicatorSpace ;

@property (nonatomic, retain) NSString *onImage ;
@property (nonatomic, retain) NSString *offImage ;

@end

99 changes: 59 additions & 40 deletions Classes/DDPageControl.m
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,8 @@ @implementation DDPageControl
@synthesize offColor ;
@synthesize indicatorDiameter ;
@synthesize indicatorSpace ;
@synthesize onImage ;
@synthesize offImage ;

#pragma mark -
#pragma mark Initializers - dealloc
Expand Down Expand Up @@ -55,7 +57,9 @@ - (void)dealloc
{
[onColor release], onColor = nil ;
[offColor release], offColor = nil ;

[onImage release], onImage = nil;
[offImage release], offImage = nil;

[super dealloc] ;
}

Expand Down Expand Up @@ -83,48 +87,63 @@ - (void)drawRect:(CGRect)rect
CGFloat dotsWidth = self.numberOfPages * diameter + MAX(0, self.numberOfPages - 1) * space ;
CGFloat x = CGRectGetMidX(currentBounds) - dotsWidth / 2 ;
CGFloat y = CGRectGetMidY(currentBounds) - diameter / 2 ;

// get the caller's colors it they have been set or use the defaults
UIColor *drawOnColor = onColor ? onColor : [UIColor colorWithWhite: 1.0f alpha: 1.0f];
UIColor *drawOffColor = offColor ? offColor : [UIColor colorWithWhite: 0.7f alpha: 0.5f];


BOOL useImages = (onImage.length || offImage.length);

// actually draw the dots
for (int i = 0 ; i < numberOfPages ; i++)
{
CGRect dotRect = CGRectMake(x, y, diameter, diameter) ;

if (i == currentPage)
{
if (type == DDPageControlTypeOnFullOffFull || type == DDPageControlTypeOnFullOffEmpty)
{
CGContextSetFillColorWithColor(context, drawOnColor.CGColor) ;
CGContextFillEllipseInRect(context, CGRectInset(dotRect, -0.5f, -0.5f)) ;
}
else
{
CGContextSetStrokeColorWithColor(context, drawOnColor.CGColor) ;
CGContextStrokeEllipseInRect(context, dotRect) ;
}
}
else
{
if (type == DDPageControlTypeOnEmptyOffEmpty || type == DDPageControlTypeOnFullOffEmpty)
{
CGContextSetStrokeColorWithColor(context, drawOffColor.CGColor) ;
CGContextStrokeEllipseInRect(context, dotRect) ;
}
else
{
CGContextSetFillColorWithColor(context, drawOffColor.CGColor) ;
CGContextFillEllipseInRect(context, CGRectInset(dotRect, -0.5f, -0.5f)) ;
}
}

x += diameter + space ;
}

// restore the context
CGContextRestoreGState(context) ;
if (useImages)
{
NSString *imageName = (i == currentPage) ? self.onImage : self.offImage;
UIImage *image = [UIImage imageNamed:imageName];

CGFloat height = (diameter * image.size.height) / image.size.width;
CGRect dotRect = CGRectMake(x, y, diameter, height) ;

[image drawInRect:dotRect];
}
else
{
// get the caller's colors it they have been set or use the defaults
UIColor *drawOnColor = onColor ? onColor : [UIColor colorWithWhite: 1.0f alpha: 1.0f];
UIColor *drawOffColor = offColor ? offColor : [UIColor colorWithWhite: 0.7f alpha: 0.5f];

CGRect dotRect = CGRectMake(x, y, diameter, diameter) ;

if (i == currentPage)
{
if (type == DDPageControlTypeOnFullOffFull || type == DDPageControlTypeOnFullOffEmpty)
{
CGContextSetFillColorWithColor(context, drawOnColor.CGColor) ;
CGContextFillEllipseInRect(context, CGRectInset(dotRect, -0.5f, -0.5f)) ;
}
else
{
CGContextSetStrokeColorWithColor(context, drawOnColor.CGColor) ;
CGContextStrokeEllipseInRect(context, dotRect) ;
}
}
else
{
if (type == DDPageControlTypeOnEmptyOffEmpty || type == DDPageControlTypeOnFullOffEmpty)
{
CGContextSetStrokeColorWithColor(context, drawOffColor.CGColor) ;
CGContextStrokeEllipseInRect(context, dotRect) ;
}
else
{
CGContextSetFillColorWithColor(context, drawOffColor.CGColor) ;
CGContextFillEllipseInRect(context, CGRectInset(dotRect, -0.5f, -0.5f)) ;
}
}
}

x += diameter + space ;
}

// restore the context
CGContextRestoreGState(context) ;
}


Expand Down