122 lines
3.2 KiB
Go
122 lines
3.2 KiB
Go
// MIT License
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// Copyright (c) 2022 Tree Xie
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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package charts
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import (
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"strings"
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"github.com/dustin/go-humanize"
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"github.com/wcharczuk/go-chart/v2"
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"github.com/wcharczuk/go-chart/v2/drawing"
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)
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type SeriesData struct {
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Value float64
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Style chart.Style
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}
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func NewSeriesFromValues(values []float64, chartType ...string) Series {
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s := Series{
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Data: NewSeriesDataFromValues(values),
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}
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if len(chartType) != 0 {
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s.Type = chartType[0]
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}
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return s
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}
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func NewSeriesDataFromValues(values []float64) []SeriesData {
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data := make([]SeriesData, len(values))
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for index, value := range values {
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data[index] = SeriesData{
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Value: value,
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}
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}
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return data
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}
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type SeriesLabel struct {
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Formatter string
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Color drawing.Color
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Show bool
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}
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const (
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SeriesMarkPointDataTypeMax = "max"
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SeriesMarkPointDataTypeMin = "min"
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)
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type SeriesMarkPointData struct {
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Type string
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}
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type SeriesMarkPoint struct {
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SymbolSize int
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Data []SeriesMarkPointData
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}
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type Series struct {
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index int
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Type string
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Data []SeriesData
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YAxisIndex int
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Style chart.Style
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Label SeriesLabel
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Name string
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// Radius of Pie chart, e.g.: 40%
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Radius string
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MarkPoint SeriesMarkPoint
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}
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type LabelFormatter func(index int, value float64, percent float64) string
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func NewPieLabelFormatter(seriesNames []string, layout string) LabelFormatter {
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if len(layout) == 0 {
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layout = "{b}: {d}"
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}
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return NewLabelFormatter(seriesNames, layout)
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}
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func NewValueLabelFormater(seriesNames []string, layout string) LabelFormatter {
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if len(layout) == 0 {
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layout = "{c}"
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}
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return NewLabelFormatter(seriesNames, layout)
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}
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func NewLabelFormatter(seriesNames []string, layout string) LabelFormatter {
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return func(index int, value, percent float64) string {
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// 如果无percent的则设置为<0
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percentText := ""
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if percent >= 0 {
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percentText = humanize.FtoaWithDigits(percent*100, 2) + "%"
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}
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valueText := humanize.FtoaWithDigits(value, 2)
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name := ""
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if len(seriesNames) > index {
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name = seriesNames[index]
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}
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text := strings.ReplaceAll(layout, "{c}", valueText)
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text = strings.ReplaceAll(text, "{d}", percentText)
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text = strings.ReplaceAll(text, "{b}", name)
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return text
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}
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}
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