//
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// PNBarChart.h
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// PNChartDemo
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//
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// Created by kevin on 11/7/13.
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// Copyright (c) 2013年 kevinzhow. All rights reserved.
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//
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#import <UIKit/UIKit.h>
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#import "PNGenericChart.h"
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#import "PNChartDelegate.h"
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#import "PNBar.h"
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#define kXLabelMargin 15
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#define kYLabelMargin 15
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#define kYLabelHeight 11
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#define kXLabelHeight 20
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typedef NSString *(^PNYLabelFormatter)(CGFloat yLabelValue);
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@interface PNBarChart : PNGenericChart
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/**
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* Draws the chart in an animated fashion.
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*/
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- (void)strokeChart;
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@property (nonatomic) NSArray *xLabels;
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@property (nonatomic) NSArray *yLabels;
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@property (nonatomic) NSArray *yValues;
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@property (nonatomic) NSMutableArray * bars;
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@property (nonatomic) CGFloat xLabelWidth;
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@property (nonatomic) float yValueMax;
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@property (nonatomic) UIColor *strokeColor;
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@property (nonatomic) NSArray *strokeColors;
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/** Update Values. */
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- (void)updateChartData:(NSArray *)data;
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/** Changes chart margin. */
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@property (nonatomic) CGFloat yChartLabelWidth;
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/** Formats the ylabel text. */
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@property (copy) PNYLabelFormatter yLabelFormatter;
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/** Prefix to y label values, none if unset. */
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@property (nonatomic) NSString *yLabelPrefix;
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/** Suffix to y label values, none if unset. */
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@property (nonatomic) NSString *yLabelSuffix;
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@property (nonatomic) CGFloat chartMarginLeft;
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@property (nonatomic) CGFloat chartMarginRight;
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@property (nonatomic) CGFloat chartMarginTop;
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@property (nonatomic) CGFloat chartMarginBottom;
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/** Controls whether labels should be displayed. */
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@property (nonatomic) BOOL showLabel;
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/** Controls whether the chart border line should be displayed. */
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@property (nonatomic) BOOL showChartBorder;
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@property (nonatomic) UIColor *chartBorderColor;
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/** Controls whether the chart Horizontal separator should be displayed. */
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@property (nonatomic, assign) BOOL showLevelLine;
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/** Chart bottom border, co-linear with the x-axis. */
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@property (nonatomic) CAShapeLayer * chartBottomLine;
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/** Chart bottom border, level separator-linear with the x-axis. */
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@property (nonatomic) CAShapeLayer * chartLevelLine;
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/** Chart left border, co-linear with the y-axis. */
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@property (nonatomic) CAShapeLayer * chartLeftLine;
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/** Corner radius for all bars in the chart. */
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@property (nonatomic) CGFloat barRadius;
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/** Width of all bars in the chart. */
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@property (nonatomic) CGFloat barWidth;
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@property (nonatomic) CGFloat labelMarginTop;
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/** Background color of all bars in the chart. */
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@property (nonatomic) UIColor * barBackgroundColor;
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/** Text color for all bars in the chart. */
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@property (nonatomic) UIColor * labelTextColor;
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/** Font for all bars in the chart. */
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@property (nonatomic) UIFont * labelFont;
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/** How many labels on the x-axis to skip in between displaying labels. */
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@property (nonatomic) NSInteger xLabelSkip;
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/** How many labels on the y-axis to skip in between displaying labels. */
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@property (nonatomic) NSInteger yLabelSum;
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/** The maximum for the range of values to display on the y-axis. */
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@property (nonatomic) CGFloat yMaxValue;
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/** The minimum for the range of values to display on the y-axis. */
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@property (nonatomic) CGFloat yMinValue;
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/** Controls whether each bar should have a gradient fill. */
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@property (nonatomic) UIColor *barColorGradientStart;
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/** Controls whether text for x-axis be straight or rotate 45 degree. */
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@property (nonatomic) BOOL rotateForXAxisText;
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@property (nonatomic, weak) id<PNChartDelegate> delegate;
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/**whether show gradient bar*/
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@property (nonatomic, assign) BOOL isGradientShow;
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/** whether show numbers*/
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@property (nonatomic, assign) BOOL isShowNumbers;
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@end
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