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Adding a progress indicator to CCSlider #89

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Adding a progress indicator to CCSlider #89

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43 changes: 43 additions & 0 deletions Extensions/CCSlider/CCSlider.h
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,9 @@ static const NSInteger kCCSliderPriority = kCCMenuTouchPriority - 2;
// weak links to children
CCMenuItem *_thumb;
CCSprite *_bg;
CCSprite *_progress;

CGSize _progressPadding;
}

/** Current chosen value, min is 0.0f, max is 1.0f. */
Expand All @@ -61,6 +64,18 @@ static const NSInteger kCCSliderPriority = kCCMenuTouchPriority - 2;
*/
+(id) sliderWithBackgroundSprite: (CCSprite *) bgSprite thumbMenuItem: (CCMenuItem *) aThumb;

/** Creates slider with given bg sprite, progress color and thumb.
*
* @see initWithBackgroundSprite: sliderProgressColor sliderPadding thumbMenuItem
*/
+(id) sliderWithBackgroundSprite: (CCSprite *) bgSprite sliderProgressColor:(ccColor4F) progressColor sliderPadding:(CGSize) padding thumbMenuItem: (CCMenuItem *) aThumb;

/* Creates a slider with background image filename, progress color & thumb image filename.
*
* @see initWithBackgroundFile: sliderProgressColor: sliderPadding: thumbFile:
*/
+ (id) sliderWithBackgroundFile:(NSString *)bgFile sliderProgressColor:(ccColor4F) progressColor sliderPadding:(CGSize) padding thumbFile:(NSString *)thumbFile;

/** Easy init - filenames instead of CCSprite & CCMenuItem. Uses designated init inside.
*
* @param thumbFile Filename, that is used to create normal & selected images for
Expand All @@ -80,4 +95,32 @@ static const NSInteger kCCSliderPriority = kCCMenuTouchPriority - 2;
*/
-(id) initWithBackgroundSprite: (CCSprite *) bgSprite thumbMenuItem: (CCMenuItem *) aThumb;

/**
* @param bgSprite CCSprite, that is used as a background. It's bounding box is used
* to determine max & min x position for a thumb menu item.
*
* @param progressColor ccColor4F, this is used to create a sprite of a color. This will represent
* the progress.
*
* @param padding CGSize, this represents the total internal padding to give for the progress. The padding
* will be relative to the bgSprite
*
* @param aThumb MenuItem that is used as a thumb. Used without CCMenu, so CCMenuItem#activate
* doesn't get called.
*/
- (id) initWithBackgroundSprite: (CCSprite *) bgSprite sliderProgressColor:(ccColor4F) progressColor sliderPadding:(CGSize) padding thumbMenuItem: (CCMenuItem *) aThumb;

/**
* @param bgFile Filename for background CCSprite.
*
* @param progressColor ccColor4F, this is used to create a sprite of a color. This will represent
* the progress.
*
* @param padding CGSize, this represents the total internal padding to give for the progress. The padding
* will be relative to the bgSprite
*
* @param thumbFile Filename, that is used to create normal & selected images for
* thumbMenuItem. Selected sprite is darker than normal sprite.
*/
- (id) initWithBackgroundFile:(NSString *)bgFile sliderProgressColor:(ccColor4F) progressColor sliderPadding:(CGSize) padding thumbFile:(NSString *)thumbFile;
@end
78 changes: 71 additions & 7 deletions Extensions/CCSlider/CCSlider.m
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* all copi*es or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Expand All @@ -32,6 +32,12 @@

#import "CCSlider.h"

#define kThumbTag 1

@interface CCSlider(Private)
- (void) scaleProgressIndicator;
- (CCSprite *)spriteWithColor:(ccColor4F)bgColor textureSize:(CGSize)textureSize;
@end

@implementation CCSlider

Expand All @@ -48,6 +54,28 @@ +(id) sliderWithBackgroundSprite: (CCSprite *) bgSprite thumbMenuItem: (CCMenuIt
thumbMenuItem: aThumb ] autorelease ];
}

+ (id) sliderWithBackgroundFile:(NSString *)bgFile sliderProgressColor:(ccColor4F) progressColor sliderPadding:(CGSize) padding thumbFile:(NSString *)thumbFile
{
return [[self alloc] initWithBackgroundFile:bgFile sliderProgressColor:progressColor sliderPadding:padding thumbFile:thumbFile];
}

+(id) sliderWithBackgroundSprite: (CCSprite *) bgSprite sliderProgressColor:(ccColor4F) progressColor sliderPadding:(CGSize) padding thumbMenuItem: (CCMenuItem *) aThumb
{
return [[[self alloc] initWithBackgroundSprite:bgSprite sliderProgressColor:progressColor sliderPadding:padding thumbMenuItem:aThumb] autorelease];
}

- (id) initWithBackgroundFile:(NSString *)bgFile sliderProgressColor:(ccColor4F) progressColor sliderPadding:(CGSize) padding thumbFile:(NSString *)thumbFile
{
self = [self initWithBackgroundFile:bgFile thumbFile:thumbFile];
if(self) {
_progressPadding = padding;
_progress = [self spriteWithColor:progressColor textureSize:CGSizeMake(_thumb.position.x, _bg.contentSize.height - padding.height)];
_progress.position = CGPointMake(_thumb.position.x/2 + padding.width/2, _bg.position.y);
[self addChild:_progress z:1];
}
return self;
}

// Easy init
- (id) initWithBackgroundFile: (NSString *) bgFile thumbFile: (NSString *) thumbFile
{
Expand All @@ -72,6 +100,27 @@ - (id) initWithBackgroundFile: (NSString *) bgFile thumbFile: (NSString *) thumb
return nil;
}

- (CCSprite *)spriteWithColor:(ccColor4F)bgColor textureSize:(CGSize)textureSize {

CCRenderTexture *rt = [CCRenderTexture renderTextureWithWidth:textureSize.width height:textureSize.height];
[rt beginWithClear:bgColor.r g:bgColor.g b:bgColor.b a:bgColor.a];
[rt end];
return [CCSprite spriteWithTexture:rt.sprite.texture];
}

- (id) initWithBackgroundSprite: (CCSprite *) bgSprite sliderProgressColor:(ccColor4F) progressColor sliderPadding:(CGSize) padding thumbMenuItem: (CCMenuItem *) aThumb
{
self = [self initWithBackgroundSprite:bgSprite thumbMenuItem:aThumb];

if (self) {
_progressPadding = padding;
_progress = [self spriteWithColor:progressColor textureSize:CGSizeMake(_thumb.position.x, _bg.contentSize.height - padding.height)];
_progress.position = CGPointMake(_thumb.position.x/2 + padding.width/2, _bg.position.y);
[self addChild:_progress z:1];
}
return self;
}

// Designated init
-(id) initWithBackgroundSprite: (CCSprite *) bgSprite thumbMenuItem: (CCMenuItem *) aThumb
{
Expand Down Expand Up @@ -99,8 +148,9 @@ -(id) initWithBackgroundSprite: (CCSprite *) bgSprite thumbMenuItem: (CCMenuItem
thumbSize = [_thumb contentSize];
minX = thumbSize.width / 2;
maxX = [self contentSize].width - thumbSize.width / 2;
_thumb.position = CGPointMake(minX, [self contentSize].height / 2);
[self addChild:_thumb];
_thumb.position = CGPointMake(minX, [self contentSize].height / 2);
[_thumb setTag:kThumbTag];
[self addChild:_thumb z:2];
}
return self;
}
Expand All @@ -127,7 +177,21 @@ - (void) setValue:(float) newValue
CCMenuItem *thumb = _thumb;
CGPoint pos = thumb.position;
pos.x = minX + newValue * (maxX - minX);
thumb.position = pos;
thumb.position = pos;
[self scaleProgressIndicator];
}

- (void) scaleProgressIndicator
{
if (_progress) {
if (_progress) {
CCSprite *progress = _progress;
CGSize size = progress.contentSize;
size.width = _thumb.position.x;
progress.scaleX = size.width/progress.contentSize.width;
progress.position = CGPointMake(_thumb.position.x/2 + _progressPadding.width/2, _bg.position.y);
}
}
}

- (NSInteger) mouseDelegatePriority
Expand Down Expand Up @@ -182,15 +246,16 @@ -(void) ccTouchMoved:(UITouch *)touch withEvent:(UIEvent *)event
if ((location.x < minX) || (location.x > maxX))
return;

CCSprite *thumb = (CCSprite *)[[self children] objectAtIndex:1];
CCSprite *thumb = (CCSprite *)[self getChildByTag:kThumbTag];
CGPoint pos = thumb.position;
pos.x = location.x;
thumb.position = pos;
[self scaleProgressIndicator];
}

-(void) ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event
{
CCSprite *thumb = (CCSprite *)[[self children] objectAtIndex:1];
CCSprite *thumb = (CCSprite *)[self getChildByTag:kThumbTag];
[_thumb unselected];
self.value = (thumb.position.x - minX) / (maxX - minX);
}
Expand Down Expand Up @@ -221,7 +286,6 @@ -(BOOL) ccMouseDown:(NSEvent*)event
return isTouchHandled; // YES for events I handle
}


-(BOOL) ccMouseDragged:(NSEvent*)event
{
CGPoint location = [self locationFromEvent: event];
Expand Down