//
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// PNLineChart.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 <QuartzCore/QuartzCore.h>
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#import "PNChartDelegate.h"
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#import "PNGenericChart.h"
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@interface PNLineChart : 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, weak) id<PNChartDelegate> delegate;
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@property (nonatomic) NSArray *xLabels;
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@property (nonatomic) NSArray *yLabels;
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/**
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* Array of `LineChartData` objects, one for each line.
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*/
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@property (nonatomic) NSArray *chartData;
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@property (nonatomic) NSMutableArray *pathPoints;
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@property (nonatomic) NSMutableArray *xChartLabels;
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@property (nonatomic) NSMutableArray *yChartLabels;
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@property (nonatomic) CGFloat xLabelWidth;
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@property (nonatomic) UIFont *xLabelFont;
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@property (nonatomic) UIColor *xLabelColor;
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@property (nonatomic) CGFloat yValueMax;
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@property (nonatomic) CGFloat yFixedValueMax;
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@property (nonatomic) CGFloat yFixedValueMin;
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@property (nonatomic) CGFloat yValueMin;
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@property (nonatomic) NSInteger yLabelNum;
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@property (nonatomic) CGFloat yLabelHeight;
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@property (nonatomic) UIFont *yLabelFont;
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@property (nonatomic) UIColor *yLabelColor;
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@property (nonatomic) CGFloat chartCavanHeight;
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@property (nonatomic) CGFloat chartCavanWidth;
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@property (nonatomic) BOOL showLabel;
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@property (nonatomic) BOOL showGenYLabels;
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@property (nonatomic) BOOL showYGridLines;
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@property (nonatomic) UIColor *yGridLinesColor;
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@property (nonatomic) BOOL thousandsSeparator;
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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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/**
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* Controls whether to show the coordinate axis. Default is NO.
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*/
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@property (nonatomic, getter = isShowCoordinateAxis) BOOL showCoordinateAxis;
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@property (nonatomic) UIColor *axisColor;
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@property (nonatomic) CGFloat axisWidth;
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@property (nonatomic, strong) NSString *xUnit;
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@property (nonatomic, strong) NSString *yUnit;
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/**
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* String formatter for float values in y-axis labels. If not set, defaults to @"%1.f"
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*/
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@property (nonatomic, strong) NSString *yLabelFormat;
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/**
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* Block formatter for custom string in y-axis labels. If not set, defaults to yLabelFormat
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*/
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@property (nonatomic, copy) NSString* (^yLabelBlockFormatter)(CGFloat);
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/**
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* Controls whether to curve the line chart or not
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*/
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@property (nonatomic) BOOL showSmoothLines;
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- (void)setXLabels:(NSArray *)xLabels withWidth:(CGFloat)width;
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/**
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* Update Chart Value
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*/
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- (void)updateChartData:(NSArray *)data;
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/**
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* returns the Legend View, or nil if no chart data is present.
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* The origin of the legend frame is 0,0 but you can set it with setFrame:(CGRect)
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*
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* @param mWidth Maximum width of legend. Height will depend on this and font size
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*
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* @return UIView of Legend
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*/
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- (UIView*) getLegendWithMaxWidth:(CGFloat)mWidth;
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+ (CGSize)sizeOfString:(NSString *)text withWidth:(float)width font:(UIFont *)font;
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+ (CGPoint)midPointBetweenPoint1:(CGPoint)point1 andPoint2:(CGPoint)point2;
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+ (CGPoint)controlPointBetweenPoint1:(CGPoint)point1 andPoint2:(CGPoint)point2;
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@end
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