Merge pull request #1 from hugo-/master

定制饼状图

@@ -65,4 +65,7 @@
 
 - (void)recompute;
 
+- (CGFloat)startPercentageForItemAtIndex:(NSUInteger)index;
+- (CGFloat)endPercentageForItemAtIndex:(NSUInteger)index;
+
 @end

@@ -26,10 +26,7 @@
 
 - (UILabel *)descriptionLabelForItemAtIndex:(NSUInteger)index;
 - (PNPieChartDataItem *)dataItemForIndex:(NSUInteger)index;
-- (CGFloat)startPercentageForItemAtIndex:(NSUInteger)index;
-- (CGFloat)endPercentageForItemAtIndex:(NSUInteger)index;
 - (CGFloat)ratioForItemAtIndex:(NSUInteger)index;
-
 - (CAShapeLayer *)newCircleLayerWithRadius:(CGFloat)radius
                                borderWidth:(CGFloat)borderWidth
                                  fillColor:(UIColor *)fillColor

@@ -22,4 +22,13 @@
 @property (nonatomic) UIColor  *color;
 @property (nonatomic) NSString *textDescription;
 
+//hehejingjing
+@property (nonatomic)UIColor *titlePathColor;
+@property (nonatomic)CGFloat titlePathWidth;
+@property (nonatomic)UIColor *titleColor;
+@property (nonatomic)UIFont *titleFont;
++ (instancetype)dataItemWithValue:(CGFloat)value
+                            color:(UIColor*)color
+                      description:(NSString *)description titlePathColor:(UIColor *)titlePathColor titlePathLineWidth:(CGFloat)lineWidth titleColor:(UIColor *)titleColor titleFont:(UIFont *)titleFont;
+
 @end

@@ -17,6 +17,11 @@
     PNPieChartDataItem *item = [PNPieChartDataItem new];
     item.value = value;
     item.color  = color;
+    item.textDescription = @"";
+    item.titlePathColor = [UIColor blackColor];
+    item.titlePathWidth = 0.5;
+    item.titleColor = [UIColor blackColor];
+    item.titleFont = [UIFont systemFontOfSize:12];
     return item;
 }
 
@@ -28,6 +33,17 @@
     return item;
 }
 
++ (instancetype)dataItemWithValue:(CGFloat)value
+                            color:(UIColor*)color
+                      description:(NSString *)description titlePathColor:(UIColor *)titlePathColor titlePathLineWidth:(CGFloat)lineWidth titleColor:(UIColor *)titleColor titleFont:(UIFont *)titleFont {
+    PNPieChartDataItem *item = [self dataItemWithValue:value color:color description:description];
+    item.titlePathColor = titlePathColor;
+    item.titlePathWidth = lineWidth;
+    item.titleColor = titleColor;
+    item.titleFont = titleFont;
+    return item;
+}
+
 - (void)setValue:(CGFloat)value{
     NSAssert(value >= 0, @"value should >= 0");
     if (value != _value){