zeni/go-chart
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color maps

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This commit is contained in:
Will Charczuk 2017-04-14 17:43:52 -07:00
parent 4f15ced303
commit fdb1b191b2
11 changed files with 577 additions and 170 deletions
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28
pie_chart.go
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@ -13,6 +13,8 @@ type PieChart struct {
Title string
TitleStyle Style
ColorPalette ColorPalette
Width int
Height int
DPI float64
@ -195,17 +197,17 @@ func (pc PieChart) getCanvasStyle() Style {
func (pc PieChart) styleDefaultsCanvas() Style {
return Style{
FillColor: DefaultCanvasColor,
StrokeColor: DefaultCanvasStrokeColor,
FillColor: pc.GetColorPalette().CanvasColor(),
StrokeColor: pc.GetColorPalette().CanvasStrokeColor(),
StrokeWidth: DefaultStrokeWidth,
}
}
func (pc PieChart) styleDefaultsPieChartValue() Style {
return Style{
StrokeColor: ColorWhite,
StrokeColor: pc.GetColorPalette().TextColor(),
StrokeWidth: 5.0,
FillColor: ColorWhite,
FillColor: pc.GetColorPalette().TextColor(),
}
}
@ -213,9 +215,9 @@ func (pc PieChart) stylePieChartValue(index int) Style {
return pc.SliceStyle.InheritFrom(Style{
StrokeColor: ColorWhite,
StrokeWidth: 5.0,
FillColor: GetAlternateColor(index),
FillColor: pc.GetColorPalette().GetSeriesColor(index),
FontSize: pc.getScaledFontSize(),
FontColor: ColorWhite,
FontColor: pc.GetColorPalette().TextColor(),
Font: pc.GetFont(),
})
}
@ -236,8 +238,8 @@ func (pc PieChart) getScaledFontSize() float64 {
func (pc PieChart) styleDefaultsBackground() Style {
return Style{
FillColor: DefaultBackgroundColor,
StrokeColor: DefaultBackgroundStrokeColor,
FillColor: pc.GetColorPalette().BackgroundColor(),
StrokeColor: pc.GetColorPalette().BackgroundStrokeColor(),
StrokeWidth: DefaultStrokeWidth,
}
}
@ -250,7 +252,7 @@ func (pc PieChart) styleDefaultsElements() Style {
func (pc PieChart) styleDefaultsTitle() Style {
return pc.TitleStyle.InheritFrom(Style{
FontColor: ColorWhite,
FontColor: pc.GetColorPalette().TextColor(),
Font: pc.GetFont(),
FontSize: pc.getTitleFontSize(),
TextHorizontalAlign: TextHorizontalAlignCenter,
@ -273,6 +275,14 @@ func (pc PieChart) getTitleFontSize() float64 {
return 10
}
// GetColorPalette returns the color palette for the chart.
func (pc PieChart) GetColorPalette() ColorPalette {
if pc.ColorPalette != nil {
return pc.ColorPalette
}
return AlternateColorPalette
}
// Box returns the chart bounds as a box.
func (pc PieChart) Box() Box {
dpr := pc.Background.Padding.GetRight(DefaultBackgroundPadding.Right)