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3 changes: 3 additions & 0 deletions PNChart/PNPieChart.h
Original file line number Diff line number Diff line change
Expand Up @@ -65,4 +65,7 @@

- (void)recompute;

/** highlights sector **/
-(void)highlightSectorAtIndex:(NSInteger)index;

@end
81 changes: 42 additions & 39 deletions PNChart/PNPieChart.m
Original file line number Diff line number Diff line change
Expand Up @@ -293,7 +293,7 @@ - (void)didTouchAt:(CGPoint)touchLocation
if ([self.delegate respondsToSelector:@selector(didUnselectPieItem)]) {
[self.delegate didUnselectPieItem];
}
[self.sectorHighlight removeFromSuperlayer];
// [self.sectorHighlight removeFromSuperlayer];
return;
}

Expand All @@ -307,52 +307,55 @@ - (void)didTouchAt:(CGPoint)touchLocation
[self.delegate userClickedOnPieIndexItem:index];
}

if (self.shouldHighlightSectorOnTouch)
if (self.shouldHighlightSectorOnTouch) {
[self highlightSectorAtIndex:index];

}
}

-(void)highlightSectorAtIndex:(NSInteger)index {
if (!self.enableMultipleSelection) {
if (self.sectorHighlight)
[self.sectorHighlight removeFromSuperlayer];
}

PNPieChartDataItem *currentItem = [self dataItemForIndex:index];

CGFloat red,green,blue,alpha;
UIColor *old = currentItem.color;
[old getRed:&red green:&green blue:&blue alpha:&alpha];
alpha /= 2;
UIColor *newColor = [UIColor colorWithRed:red green:green blue:blue alpha:alpha];

CGFloat startPercentage = [self startPercentageForItemAtIndex:index];
CGFloat endPercentage = [self endPercentageForItemAtIndex:index];

self.sectorHighlight = [self newCircleLayerWithRadius:_outerCircleRadius + 5
borderWidth:10
fillColor:[UIColor clearColor]
borderColor:newColor
startPercentage:startPercentage
endPercentage:endPercentage];

if (self.enableMultipleSelection)
{
if (!self.enableMultipleSelection)
NSString *dictIndex = [NSString stringWithFormat:@"%d", index];
CAShapeLayer *indexShape = [self.selectedItems valueForKey:dictIndex];
if (indexShape)
{
if (self.sectorHighlight)
[self.sectorHighlight removeFromSuperlayer];
}

PNPieChartDataItem *currentItem = [self dataItemForIndex:index];

CGFloat red,green,blue,alpha;
UIColor *old = currentItem.color;
[old getRed:&red green:&green blue:&blue alpha:&alpha];
alpha /= 2;
UIColor *newColor = [UIColor colorWithRed:red green:green blue:blue alpha:alpha];

CGFloat startPercentage = [self startPercentageForItemAtIndex:index];
CGFloat endPercentage = [self endPercentageForItemAtIndex:index];

self.sectorHighlight = [self newCircleLayerWithRadius:_outerCircleRadius + 5
borderWidth:10
fillColor:[UIColor clearColor]
borderColor:newColor
startPercentage:startPercentage
endPercentage:endPercentage];

if (self.enableMultipleSelection)
{
NSString *dictIndex = [NSString stringWithFormat:@"%d", index];
CAShapeLayer *indexShape = [self.selectedItems valueForKey:dictIndex];
if (indexShape)
{
[indexShape removeFromSuperlayer];
[self.selectedItems removeObjectForKey:dictIndex];
}
else
{
[self.selectedItems setObject:self.sectorHighlight forKey:dictIndex];
[_contentView.layer addSublayer:self.sectorHighlight];
}
[indexShape removeFromSuperlayer];
[self.selectedItems removeObjectForKey:dictIndex];
}
else
{
[self.selectedItems setObject:self.sectorHighlight forKey:dictIndex];
[_contentView.layer addSublayer:self.sectorHighlight];
}
}
else
{
[_contentView.layer addSublayer:self.sectorHighlight];
}
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
Expand Down