go-charts/series.go
2021-12-14 23:26:34 +08:00

98 lines
2.6 KiB
Go

// MIT License
// Copyright (c) 2021 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
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package charts
import (
"github.com/wcharczuk/go-chart/v2"
"github.com/wcharczuk/go-chart/v2/drawing"
)
type Series struct {
Type string
Name string
Data []float64
XValues []float64
}
const lineStrokeWidth = 2
const dotWith = 2
const (
SeriesBar = "bar"
SeriesLine = "line"
)
func getSeriesColor(theme string, index int) drawing.Color {
// TODO
if theme == ThemeDark {
}
return SeriesColorsLight[index%len(SeriesColorsLight)]
}
func GetSeries(series []Series, tickPosition chart.TickPosition, theme string) []chart.Series {
arr := make([]chart.Series, len(series))
barCount := 0
barIndex := 0
for _, item := range series {
if item.Type == SeriesBar {
barCount++
}
}
for index, item := range series {
style := chart.Style{
StrokeWidth: lineStrokeWidth,
StrokeColor: getSeriesColor(theme, index),
// TODO 调整为通过dot with color 生成
DotColor: getSeriesColor(theme, index),
DotWidth: dotWith,
}
// 如果居中,需要多增加一个点
if tickPosition == chart.TickPositionBetweenTicks {
item.Data = append([]float64{
0.0,
}, item.Data...)
}
baseSeries := BaseSeries{
Name: item.Name,
XValues: item.XValues,
Style: style,
YValues: item.Data,
TickPosition: tickPosition,
}
// TODO 判断类型
switch item.Type {
case SeriesBar:
arr[index] = BarSeries{
Count: barCount,
Index: barIndex,
BaseSeries: baseSeries,
}
barIndex++
default:
arr[index] = LineSeries{
BaseSeries: baseSeries,
}
}
}
return arr
}