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