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feat: support line chart draw function

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This commit is contained in:
vicanso 2022-01-29 11:16:34 +08:00
parent 4ac419fce9
commit ccdaf70dcb
34 changed files with 1780 additions and 4672 deletions
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280
theme.go
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@ -1,6 +1,6 @@
// MIT License
// Copyright (c) 2021 Tree Xie
// Copyright (c) 2022 Tree Xie
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
@ -22,201 +22,101 @@
package charts
import (
"regexp"
"strconv"
"strings"
import "github.com/wcharczuk/go-chart/v2/drawing"
"github.com/wcharczuk/go-chart/v2"
"github.com/wcharczuk/go-chart/v2/drawing"
)
const ThemeDark = "dark"
const ThemeLight = "light"
var hiddenColor = drawing.Color{R: 255, G: 255, B: 255, A: 0}
var AxisColorLight = drawing.Color{
R: 110,
G: 112,
B: 121,
A: 255,
}
var AxisColorDark = drawing.Color{
R: 185,
G: 184,
B: 206,
A: 255,
type Theme struct {
mode string
}
var GridColorDark = drawing.Color{
R: 72,
G: 71,
B: 83,
A: 255,
func (t *Theme) IsDark() bool {
return t.mode == ThemeDark
}
var GridColorLight = drawing.Color{
R: 224,
G: 230,
B: 241,
A: 255,
}
var BackgroundColorDark = drawing.Color{
R: 16,
G: 12,
B: 42,
A: 255,
}
var TextColorDark = drawing.Color{
R: 204,
G: 204,
B: 204,
A: 255,
}
func getAxisColor(theme string) drawing.Color {
if theme == ThemeDark {
return AxisColorDark
}
return AxisColorLight
}
func getGridColor(theme string) drawing.Color {
if theme == ThemeDark {
return GridColorDark
}
return GridColorLight
}
var SeriesColorsLight = []drawing.Color{
{
R: 84,
G: 112,
B: 198,
A: 255,
},
{
R: 145,
G: 204,
B: 117,
A: 255,
},
{
R: 250,
G: 200,
B: 88,
A: 255,
},
{
R: 238,
G: 102,
B: 102,
A: 255,
},
{
R: 115,
G: 192,
B: 222,
A: 255,
},
}
func getBackgroundColor(theme string) drawing.Color {
if theme == ThemeDark {
return BackgroundColorDark
}
return chart.DefaultBackgroundColor
}
func getTextColor(theme string) drawing.Color {
if theme == ThemeDark {
return TextColorDark
}
return chart.DefaultTextColor
}
type ThemeColorPalette struct {
Theme string
}
type PieThemeColorPalette struct {
ThemeColorPalette
}
func (tp PieThemeColorPalette) TextColor() drawing.Color {
return getTextColor("")
}
func (tp ThemeColorPalette) BackgroundColor() drawing.Color {
return getBackgroundColor(tp.Theme)
}
func (tp ThemeColorPalette) BackgroundStrokeColor() drawing.Color {
return chart.DefaultBackgroundStrokeColor
}
func (tp ThemeColorPalette) CanvasColor() drawing.Color {
if tp.Theme == ThemeDark {
return BackgroundColorDark
}
return chart.DefaultCanvasColor
}
func (tp ThemeColorPalette) CanvasStrokeColor() drawing.Color {
return chart.DefaultCanvasStrokeColor
}
func (tp ThemeColorPalette) AxisStrokeColor() drawing.Color {
if tp.Theme == ThemeDark {
return BackgroundColorDark
}
return chart.DefaultAxisColor
}
func (tp ThemeColorPalette) TextColor() drawing.Color {
return getTextColor(tp.Theme)
}
func (tp ThemeColorPalette) GetSeriesColor(index int) drawing.Color {
return getSeriesColor(tp.Theme, index)
}
func getSeriesColor(theme string, index int) drawing.Color {
return SeriesColorsLight[index%len(SeriesColorsLight)]
}
func parseColor(color string) drawing.Color {
c := drawing.Color{}
if color == "" {
return c
}
if strings.HasPrefix(color, "#") {
return drawing.ColorFromHex(color[1:])
}
reg := regexp.MustCompile(`\((\S+)\)`)
result := reg.FindAllStringSubmatch(color, 1)
if len(result) == 0 || len(result[0]) != 2 {
return c
}
arr := strings.Split(result[0][1], ",")
if len(arr) < 3 {
return c
}
// 设置默认为255
c.A = 255
for index, v := range arr {
value, _ := strconv.Atoi(strings.TrimSpace(v))
ui8 := uint8(value)
switch index {
case 0:
c.R = ui8
case 1:
c.G = ui8
case 2:
c.B = ui8
default:
c.A = ui8
func (t *Theme) GetAxisStrokeColor() drawing.Color {
if t.IsDark() {
return drawing.Color{
R: 185,
G: 184,
B: 206,
A: 255,
}
}
return c
return drawing.Color{
R: 110,
G: 112,
B: 121,
A: 255,
}
}
func (t *Theme) GetAxisSplitLineColor() drawing.Color {
if t.IsDark() {
return drawing.Color{
R: 72,
G: 71,
B: 83,
A: 255,
}
}
return drawing.Color{
R: 224,
G: 230,
B: 242,
A: 255,
}
}
func (t *Theme) GetSeriesColor(index int) drawing.Color {
colors := t.GetSeriesColors()
return colors[index%len(colors)]
}
func (t *Theme) GetSeriesColors() []drawing.Color {
return []drawing.Color{
{
R: 84,
G: 112,
B: 198,
A: 255,
},
{
R: 145,
G: 204,
B: 117,
A: 255,
},
{
R: 250,
G: 200,
B: 88,
A: 255,
},
{
R: 238,
G: 102,
B: 102,
A: 255,
},
{
R: 115,
G: 192,
B: 222,
A: 255,
},
}
}
func (t *Theme) GetBackgroundColor() drawing.Color {
if t.IsDark() {
return drawing.Color{
R: 16,
G: 12,
B: 42,
A: 255,
}
}
return drawing.ColorWhite
}