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- //
- // MultipleLinesChartViewController.m
- // ChartsDemo
- //
- // Copyright 2015 Daniel Cohen Gindi & Philipp Jahoda
- // A port of MPAndroidChart for iOS
- // Licensed under Apache License 2.0
- //
- // https://github.com/danielgindi/Charts
- //
- #import "MultipleLinesChartViewController.h"
- #import "ChartsDemo_iOS-Swift.h"
- @interface MultipleLinesChartViewController () <ChartViewDelegate>
- @property (nonatomic, strong) IBOutlet LineChartView *chartView;
- @property (nonatomic, strong) IBOutlet UISlider *sliderX;
- @property (nonatomic, strong) IBOutlet UISlider *sliderY;
- @property (nonatomic, strong) IBOutlet UITextField *sliderTextX;
- @property (nonatomic, strong) IBOutlet UITextField *sliderTextY;
- @end
- @implementation MultipleLinesChartViewController
- - (void)viewDidLoad
- {
- [super viewDidLoad];
-
- self.title = @"Multiple Lines Chart";
-
- self.options = @[
- @{@"key": @"toggleValues", @"label": @"Toggle Values"},
- @{@"key": @"toggleFilled", @"label": @"Toggle Filled"},
- @{@"key": @"toggleCircles", @"label": @"Toggle Circles"},
- @{@"key": @"toggleCubic", @"label": @"Toggle Cubic"},
- @{@"key": @"toggleStepped", @"label": @"Toggle Stepped"},
- @{@"key": @"toggleHighlight", @"label": @"Toggle Highlight"},
- @{@"key": @"animateX", @"label": @"Animate X"},
- @{@"key": @"animateY", @"label": @"Animate Y"},
- @{@"key": @"animateXY", @"label": @"Animate XY"},
- @{@"key": @"saveToGallery", @"label": @"Save to Camera Roll"},
- @{@"key": @"togglePinchZoom", @"label": @"Toggle PinchZoom"},
- @{@"key": @"toggleAutoScaleMinMax", @"label": @"Toggle auto scale min/max"},
- @{@"key": @"toggleData", @"label": @"Toggle Data"},
- ];
-
- _chartView.delegate = self;
-
- _chartView.chartDescription.enabled = NO;
-
- _chartView.leftAxis.enabled = NO;
- _chartView.rightAxis.drawAxisLineEnabled = NO;
- _chartView.rightAxis.drawGridLinesEnabled = NO;
- _chartView.xAxis.drawAxisLineEnabled = NO;
- _chartView.xAxis.drawGridLinesEnabled = NO;
- _chartView.drawGridBackgroundEnabled = NO;
- _chartView.drawBordersEnabled = NO;
- _chartView.dragEnabled = YES;
- [_chartView setScaleEnabled:YES];
- _chartView.pinchZoomEnabled = NO;
-
- ChartLegend *l = _chartView.legend;
- l.horizontalAlignment = ChartLegendHorizontalAlignmentRight;
- l.verticalAlignment = ChartLegendVerticalAlignmentTop;
- l.orientation = ChartLegendOrientationVertical;
- l.drawInside = NO;
-
- _sliderX.value = 20.0;
- _sliderY.value = 100.0;
- [self slidersValueChanged:nil];
- }
- - (void)didReceiveMemoryWarning
- {
- [super didReceiveMemoryWarning];
- // Dispose of any resources that can be recreated.
- }
- - (void)updateChartData
- {
- if (self.shouldHideData)
- {
- _chartView.data = nil;
- return;
- }
-
- [self setDataCount:_sliderX.value range:_sliderY.value];
- }
- - (void)setDataCount:(int)count range:(double)range
- {
- NSArray *colors = @[ChartColorTemplates.vordiplom[0], ChartColorTemplates.vordiplom[1], ChartColorTemplates.vordiplom[2]];
-
- NSMutableArray *dataSets = [[NSMutableArray alloc] init];
-
- for (int z = 0; z < 3; z++)
- {
- NSMutableArray *values = [[NSMutableArray alloc] init];
-
- for (int i = 0; i < count; i++)
- {
- double val = (double) (arc4random_uniform(range) + 3);
- [values addObject:[[ChartDataEntry alloc] initWithX:i y:val]];
- }
-
- LineChartDataSet *d = [[LineChartDataSet alloc] initWithEntries:values label:[NSString stringWithFormat:@"DataSet %d", z + 1]];
- d.lineWidth = 2.5;
- d.circleRadius = 4.0;
- d.circleHoleRadius = 2.0;
-
- UIColor *color = colors[z % colors.count];
- [d setColor:color];
- [d setCircleColor:color];
- [dataSets addObject:d];
- }
-
- ((LineChartDataSet *)dataSets[0]).lineDashLengths = @[@5.f, @5.f];
- ((LineChartDataSet *)dataSets[0]).colors = ChartColorTemplates.vordiplom;
- ((LineChartDataSet *)dataSets[0]).circleColors = ChartColorTemplates.vordiplom;
-
- LineChartData *data = [[LineChartData alloc] initWithDataSets:dataSets];
- [data setValueFont:[UIFont fontWithName:@"HelveticaNeue-Light" size:7.f]];
- _chartView.data = data;
- }
- - (void)optionTapped:(NSString *)key
- {
- if ([key isEqualToString:@"toggleFilled"])
- {
- for (id<LineChartDataSetProtocol> set in _chartView.data.dataSets)
- {
- set.drawFilledEnabled = !set.isDrawFilledEnabled;
- }
-
- [_chartView setNeedsDisplay];
- return;
- }
-
- if ([key isEqualToString:@"toggleCircles"])
- {
- for (id<LineChartDataSetProtocol> set in _chartView.data.dataSets)
- {
- set.drawCirclesEnabled = !set.isDrawCirclesEnabled;
- }
-
- [_chartView setNeedsDisplay];
- return;
- }
-
- if ([key isEqualToString:@"toggleCubic"])
- {
- for (id<LineChartDataSetProtocol> set in _chartView.data.dataSets)
- {
- set.mode = set.mode == LineChartModeCubicBezier ? LineChartModeLinear : LineChartModeCubicBezier;
- }
-
- [_chartView setNeedsDisplay];
- return;
- }
- if ([key isEqualToString:@"toggleStepped"])
- {
- for (id<LineChartDataSetProtocol> set in _chartView.data.dataSets)
- {
- switch (set.mode) {
- case LineChartModeLinear:
- case LineChartModeCubicBezier:
- case LineChartModeHorizontalBezier:
- set.mode = LineChartModeStepped;
- break;
- case LineChartModeStepped: set.mode = LineChartModeLinear;
- }
- }
- [_chartView setNeedsDisplay];
- }
-
- [super handleOption:key forChartView:_chartView];
- }
- #pragma mark - Actions
- - (IBAction)slidersValueChanged:(id)sender
- {
- _sliderTextX.text = [@((int)_sliderX.value) stringValue];
- _sliderTextY.text = [@((int)_sliderY.value) stringValue];
-
- [self updateChartData];
- }
- #pragma mark - ChartViewDelegate
- - (void)chartValueSelected:(ChartViewBase * __nonnull)chartView entry:(ChartDataEntry * __nonnull)entry highlight:(ChartHighlight * __nonnull)highlight
- {
- NSLog(@"chartValueSelected");
- }
- - (void)chartValueNothingSelected:(ChartViewBase * __nonnull)chartView
- {
- NSLog(@"chartValueNothingSelected");
- }
- @end
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