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pie charts!

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This commit is contained in:
Will Charczuk 2016-07-28 02:34:44 -07:00
parent ec4d92fc5e
commit c17c9a4bb4
10 changed files with 485 additions and 45 deletions
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122
defaults.go
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@ -66,42 +66,85 @@ const (
)
var (
// DefaultBackgroundColor is the default chart background color.
// It is equivalent to css color:white.
DefaultBackgroundColor = drawing.Color{R: 255, G: 255, B: 255, A: 255}
// DefaultBackgroundStrokeColor is the default chart border color.
// It is equivalent to color:white.
DefaultBackgroundStrokeColor = drawing.Color{R: 255, G: 255, B: 255, A: 255}
// DefaultCanvasColor is the default chart canvas color.
// It is equivalent to css color:white.
DefaultCanvasColor = drawing.Color{R: 255, G: 255, B: 255, A: 255}
// DefaultCanvasStrokeColor is the default chart canvas stroke color.
// It is equivalent to css color:white.
DefaultCanvasStrokeColor = drawing.Color{R: 255, G: 255, B: 255, A: 255}
// DefaultTextColor is the default chart text color.
// It is equivalent to #333333.
DefaultTextColor = drawing.Color{R: 51, G: 51, B: 51, A: 255}
// DefaultAxisColor is the default chart axis line color.
// It is equivalent to #333333.
DefaultAxisColor = drawing.Color{R: 51, G: 51, B: 51, A: 255}
// DefaultStrokeColor is the default chart border color.
// It is equivalent to #efefef.
DefaultStrokeColor = drawing.Color{R: 239, G: 239, B: 239, A: 255}
// DefaultFillColor is the default fill color.
// It is equivalent to #0074d9.
DefaultFillColor = drawing.Color{R: 0, G: 217, B: 116, A: 255}
// DefaultAnnotationFillColor is the default annotation background color.
DefaultAnnotationFillColor = drawing.Color{R: 255, G: 255, B: 255, A: 255}
// DefaultGridLineColor is the default grid line color.
DefaultGridLineColor = drawing.Color{R: 239, G: 239, B: 239, A: 255}
// ColorWhite is white.
ColorWhite = drawing.Color{R: 255, G: 255, B: 255, A: 255}
// ColorBlue is the basic theme blue color.
ColorBlue = drawing.Color{R: 0, G: 116, B: 217, A: 255}
// ColorCyan is the basic theme cyan color.
ColorCyan = drawing.Color{R: 0, G: 217, B: 210, A: 255}
// ColorGreen is the basic theme green color.
ColorGreen = drawing.Color{R: 0, G: 217, B: 101, A: 255}
// ColorRed is the basic theme red color.
ColorRed = drawing.Color{R: 217, G: 0, B: 116, A: 255}
// ColorOrange is the basic theme orange color.
ColorOrange = drawing.Color{R: 217, G: 101, B: 0, A: 255}
// ColorYellow is the basic theme yellow color.
ColorYellow = drawing.Color{R: 217, G: 210, B: 0, A: 255}
// ColorBlack is the basic theme black color.
ColorBlack = drawing.Color{R: 51, G: 51, B: 51, A: 255}
// ColorLightGray is the basic theme light gray color.
ColorLightGray = drawing.Color{R: 239, G: 239, B: 239, A: 255}
// ColorAlternateBlue is a alternate theme color.
ColorAlternateBlue = drawing.Color{R: 106, G: 195, B: 203, A: 255}
// ColorAlternateGreen is a alternate theme color.
ColorAlternateGreen = drawing.Color{R: 42, G: 190, B: 137, A: 255}
// ColorAlternateGray is a alternate theme color.
ColorAlternateGray = drawing.Color{R: 110, G: 128, B: 139, A: 255}
// ColorAlternateYellow is a alternate theme color.
ColorAlternateYellow = drawing.Color{R: 240, G: 174, B: 90, A: 255}
// ColorAlternateLightGray is a alternate theme color.
ColorAlternateLightGray = drawing.Color{R: 187, G: 190, B: 191, A: 255}
)
var (
// DefaultSeriesStrokeColors are a couple default series colors.
DefaultSeriesStrokeColors = []drawing.Color{
{R: 0, G: 116, B: 217, A: 255},
{R: 0, G: 217, B: 116, A: 255},
{R: 217, G: 0, B: 116, A: 255},
// DefaultBackgroundColor is the default chart background color.
// It is equivalent to css color:white.
DefaultBackgroundColor = ColorWhite
// DefaultBackgroundStrokeColor is the default chart border color.
// It is equivalent to color:white.
DefaultBackgroundStrokeColor = ColorWhite
// DefaultCanvasColor is the default chart canvas color.
// It is equivalent to css color:white.
DefaultCanvasColor = ColorWhite
// DefaultCanvasStrokeColor is the default chart canvas stroke color.
// It is equivalent to css color:white.
DefaultCanvasStrokeColor = ColorWhite
// DefaultTextColor is the default chart text color.
// It is equivalent to #333333.
DefaultTextColor = ColorBlack
// DefaultAxisColor is the default chart axis line color.
// It is equivalent to #333333.
DefaultAxisColor = ColorBlack
// DefaultStrokeColor is the default chart border color.
// It is equivalent to #efefef.
DefaultStrokeColor = ColorLightGray
// DefaultFillColor is the default fill color.
// It is equivalent to #0074d9.
DefaultFillColor = ColorBlue
// DefaultAnnotationFillColor is the default annotation background color.
DefaultAnnotationFillColor = ColorWhite
// DefaultGridLineColor is the default grid line color.
DefaultGridLineColor = ColorLightGray
)
var (
// DefaultColors are a couple default series colors.
DefaultColors = []drawing.Color{
ColorBlue,
ColorGreen,
ColorRed,
ColorCyan,
ColorOrange,
}
// DefaultAlternateColors are a couple alternate colors.
DefaultAlternateColors = []drawing.Color{
ColorAlternateBlue,
ColorAlternateGreen,
ColorAlternateGray,
ColorAlternateYellow,
ColorAlternateLightGray,
}
)
@ -117,10 +160,17 @@ var (
)
// GetDefaultSeriesStrokeColor returns a color from the default list by index.
// NOTE: the index will wrap around (using a modulo).g
// NOTE: the index will wrap around (using a modulo).
func GetDefaultSeriesStrokeColor(index int) drawing.Color {
finalIndex := index % len(DefaultSeriesStrokeColors)
return DefaultSeriesStrokeColors[finalIndex]
finalIndex := index % len(DefaultColors)
return DefaultColors[finalIndex]
}
// GetDefaultPieChartValueColor returns a color from the default list by index.
// NOTE: the index will wrap around (using a modulo).
func GetDefaultPieChartValueColor(index int) drawing.Color {
finalIndex := index % len(DefaultAlternateColors)
return DefaultAlternateColors[finalIndex]
}
var (