499 lines
12 KiB
Go
499 lines
12 KiB
Go
// MIT License
|
||
|
||
// 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
|
||
// 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 (
|
||
"bytes"
|
||
"encoding/json"
|
||
"fmt"
|
||
"regexp"
|
||
"strconv"
|
||
|
||
"github.com/wcharczuk/go-chart/v2"
|
||
)
|
||
|
||
func convertToArray(data []byte) []byte {
|
||
data = bytes.TrimSpace(data)
|
||
if len(data) == 0 {
|
||
return nil
|
||
}
|
||
if data[0] != '[' {
|
||
data = []byte("[" + string(data) + "]")
|
||
}
|
||
return data
|
||
}
|
||
|
||
type EChartsPosition string
|
||
|
||
func (p *EChartsPosition) UnmarshalJSON(data []byte) error {
|
||
if len(data) == 0 {
|
||
return nil
|
||
}
|
||
if regexp.MustCompile(`^\d+`).Match(data) {
|
||
data = []byte(fmt.Sprintf(`"%s"`, string(data)))
|
||
}
|
||
s := (*string)(p)
|
||
return json.Unmarshal(data, s)
|
||
}
|
||
|
||
type EChartStyle struct {
|
||
Color string `json:"color"`
|
||
}
|
||
|
||
func (es *EChartStyle) ToStyle() chart.Style {
|
||
color := parseColor(es.Color)
|
||
return chart.Style{
|
||
FillColor: color,
|
||
FontColor: color,
|
||
StrokeColor: color,
|
||
}
|
||
}
|
||
|
||
type EChartsSeriesDataValue struct {
|
||
values []float64
|
||
}
|
||
|
||
func (value *EChartsSeriesDataValue) UnmarshalJSON(data []byte) error {
|
||
data = convertToArray(data)
|
||
return json.Unmarshal(data, &value.values)
|
||
}
|
||
func (value *EChartsSeriesDataValue) First() float64 {
|
||
if len(value.values) == 0 {
|
||
return 0
|
||
}
|
||
return value.values[0]
|
||
}
|
||
func NewEChartsSeriesDataValue(values ...float64) EChartsSeriesDataValue {
|
||
return EChartsSeriesDataValue{
|
||
values: values,
|
||
}
|
||
}
|
||
|
||
type EChartsSeriesData struct {
|
||
Value EChartsSeriesDataValue `json:"value"`
|
||
Name string `json:"name"`
|
||
ItemStyle EChartStyle `json:"itemStyle"`
|
||
}
|
||
type _EChartsSeriesData EChartsSeriesData
|
||
|
||
var numericRep = regexp.MustCompile(`^[-+]?[0-9]+(?:\.[0-9]+)?$`)
|
||
|
||
func (es *EChartsSeriesData) UnmarshalJSON(data []byte) error {
|
||
data = bytes.TrimSpace(data)
|
||
if len(data) == 0 {
|
||
return nil
|
||
}
|
||
if numericRep.Match(data) {
|
||
v, err := strconv.ParseFloat(string(data), 64)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
es.Value = EChartsSeriesDataValue{
|
||
values: []float64{
|
||
v,
|
||
},
|
||
}
|
||
return nil
|
||
}
|
||
v := _EChartsSeriesData{}
|
||
err := json.Unmarshal(data, &v)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
es.Name = v.Name
|
||
es.Value = v.Value
|
||
es.ItemStyle = v.ItemStyle
|
||
return nil
|
||
}
|
||
|
||
type EChartsXAxisData struct {
|
||
BoundaryGap *bool `json:"boundaryGap"`
|
||
SplitNumber int `json:"splitNumber"`
|
||
Data []string `json:"data"`
|
||
}
|
||
type EChartsXAxis struct {
|
||
Data []EChartsXAxisData
|
||
}
|
||
|
||
func (ex *EChartsXAxis) UnmarshalJSON(data []byte) error {
|
||
data = convertToArray(data)
|
||
if len(data) == 0 {
|
||
return nil
|
||
}
|
||
return json.Unmarshal(data, &ex.Data)
|
||
}
|
||
|
||
type EChartsAxisLabel struct {
|
||
Formatter string `json:"formatter"`
|
||
}
|
||
type EChartsYAxisData struct {
|
||
Min *float64 `json:"min"`
|
||
Max *float64 `json:"max"`
|
||
AxisLabel EChartsAxisLabel `json:"axisLabel"`
|
||
AxisLine struct {
|
||
LineStyle struct {
|
||
Color string `json:"color"`
|
||
} `json:"lineStyle"`
|
||
} `json:"axisLine"`
|
||
}
|
||
type EChartsYAxis struct {
|
||
Data []EChartsYAxisData `json:"data"`
|
||
}
|
||
|
||
func (ey *EChartsYAxis) UnmarshalJSON(data []byte) error {
|
||
data = convertToArray(data)
|
||
if len(data) == 0 {
|
||
return nil
|
||
}
|
||
return json.Unmarshal(data, &ey.Data)
|
||
}
|
||
|
||
type EChartsPadding struct {
|
||
Box chart.Box
|
||
}
|
||
|
||
func (eb *EChartsPadding) UnmarshalJSON(data []byte) error {
|
||
data = convertToArray(data)
|
||
if len(data) == 0 {
|
||
return nil
|
||
}
|
||
arr := make([]int, 0)
|
||
err := json.Unmarshal(data, &arr)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
if len(arr) == 0 {
|
||
return nil
|
||
}
|
||
switch len(arr) {
|
||
case 1:
|
||
eb.Box = chart.Box{
|
||
Left: arr[0],
|
||
Top: arr[0],
|
||
Bottom: arr[0],
|
||
Right: arr[0],
|
||
}
|
||
case 2:
|
||
eb.Box = chart.Box{
|
||
Top: arr[0],
|
||
Bottom: arr[0],
|
||
Left: arr[1],
|
||
Right: arr[1],
|
||
}
|
||
default:
|
||
result := make([]int, 4)
|
||
copy(result, arr)
|
||
if len(arr) == 3 {
|
||
result[3] = result[1]
|
||
}
|
||
// 上右下左
|
||
eb.Box = chart.Box{
|
||
Top: result[0],
|
||
Right: result[1],
|
||
Bottom: result[2],
|
||
Left: result[3],
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
type EChartsLabelOption struct {
|
||
Show bool `json:"show"`
|
||
Distance int `json:"distance"`
|
||
Color string `json:"color"`
|
||
}
|
||
type EChartsLegend struct {
|
||
Show *bool `json:"show"`
|
||
Data []string `json:"data"`
|
||
Align string `json:"align"`
|
||
Orient string `json:"orient"`
|
||
Padding EChartsPadding `json:"padding"`
|
||
Left EChartsPosition `json:"left"`
|
||
Top EChartsPosition `json:"top"`
|
||
TextStyle EChartsTextStyle `json:"textStyle"`
|
||
}
|
||
|
||
type EChartsMarkData struct {
|
||
Type string `json:"type"`
|
||
}
|
||
type _EChartsMarkData EChartsMarkData
|
||
|
||
func (emd *EChartsMarkData) UnmarshalJSON(data []byte) error {
|
||
data = bytes.TrimSpace(data)
|
||
if len(data) == 0 {
|
||
return nil
|
||
}
|
||
data = convertToArray(data)
|
||
ds := make([]*_EChartsMarkData, 0)
|
||
err := json.Unmarshal(data, &ds)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
for _, d := range ds {
|
||
if d.Type != "" {
|
||
emd.Type = d.Type
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
type EChartsMarkPoint struct {
|
||
SymbolSize int `json:"symbolSize"`
|
||
Data []EChartsMarkData `json:"data"`
|
||
}
|
||
|
||
func (emp *EChartsMarkPoint) ToSeriesMarkPoint() SeriesMarkPoint {
|
||
sp := SeriesMarkPoint{
|
||
SymbolSize: emp.SymbolSize,
|
||
}
|
||
if len(emp.Data) == 0 {
|
||
return sp
|
||
}
|
||
data := make([]SeriesMarkData, len(emp.Data))
|
||
for index, item := range emp.Data {
|
||
data[index].Type = item.Type
|
||
}
|
||
sp.Data = data
|
||
return sp
|
||
}
|
||
|
||
type EChartsMarkLine struct {
|
||
Data []EChartsMarkData `json:"data"`
|
||
}
|
||
|
||
func (eml *EChartsMarkLine) ToSeriesMarkLine() SeriesMarkLine {
|
||
sl := SeriesMarkLine{}
|
||
if len(eml.Data) == 0 {
|
||
return sl
|
||
}
|
||
data := make([]SeriesMarkData, len(eml.Data))
|
||
for index, item := range eml.Data {
|
||
data[index].Type = item.Type
|
||
}
|
||
sl.Data = data
|
||
return sl
|
||
}
|
||
|
||
type EChartsSeries struct {
|
||
Data []EChartsSeriesData `json:"data"`
|
||
Name string `json:"name"`
|
||
Type string `json:"type"`
|
||
Radius string `json:"radius"`
|
||
YAxisIndex int `json:"yAxisIndex"`
|
||
ItemStyle EChartStyle `json:"itemStyle"`
|
||
// label的配置
|
||
Label EChartsLabelOption `json:"label"`
|
||
MarkPoint EChartsMarkPoint `json:"markPoint"`
|
||
MarkLine EChartsMarkLine `json:"markLine"`
|
||
Max *float64 `json:"max"`
|
||
Min *float64 `json:"min"`
|
||
}
|
||
type EChartsSeriesList []EChartsSeries
|
||
|
||
func (esList EChartsSeriesList) ToSeriesList() SeriesList {
|
||
seriesList := make(SeriesList, 0, len(esList))
|
||
for _, item := range esList {
|
||
// 如果是pie，则每个子荐生成一个series
|
||
if item.Type == ChartTypePie {
|
||
for _, dataItem := range item.Data {
|
||
seriesList = append(seriesList, Series{
|
||
Type: item.Type,
|
||
Name: dataItem.Name,
|
||
Label: SeriesLabel{
|
||
Show: true,
|
||
},
|
||
Radius: item.Radius,
|
||
Data: []SeriesData{
|
||
{
|
||
Value: dataItem.Value.First(),
|
||
},
|
||
},
|
||
})
|
||
}
|
||
continue
|
||
}
|
||
// 如果是radar或funnel
|
||
if item.Type == ChartTypeRadar ||
|
||
item.Type == ChartTypeFunnel {
|
||
for _, dataItem := range item.Data {
|
||
seriesList = append(seriesList, Series{
|
||
Name: dataItem.Name,
|
||
Type: item.Type,
|
||
Data: NewSeriesDataFromValues(dataItem.Value.values),
|
||
Max: item.Max,
|
||
Min: item.Min,
|
||
})
|
||
}
|
||
continue
|
||
}
|
||
data := make([]SeriesData, len(item.Data))
|
||
for j, dataItem := range item.Data {
|
||
data[j] = SeriesData{
|
||
Value: dataItem.Value.First(),
|
||
Style: dataItem.ItemStyle.ToStyle(),
|
||
}
|
||
}
|
||
seriesList = append(seriesList, Series{
|
||
Type: item.Type,
|
||
Data: data,
|
||
YAxisIndex: item.YAxisIndex,
|
||
Style: item.ItemStyle.ToStyle(),
|
||
Label: SeriesLabel{
|
||
Color: parseColor(item.Label.Color),
|
||
Show: item.Label.Show,
|
||
Distance: item.Label.Distance,
|
||
},
|
||
Name: item.Name,
|
||
MarkPoint: item.MarkPoint.ToSeriesMarkPoint(),
|
||
MarkLine: item.MarkLine.ToSeriesMarkLine(),
|
||
})
|
||
}
|
||
return seriesList
|
||
}
|
||
|
||
type EChartsTextStyle struct {
|
||
Color string `json:"color"`
|
||
FontFamily string `json:"fontFamily"`
|
||
FontSize float64 `json:"fontSize"`
|
||
}
|
||
|
||
func (et *EChartsTextStyle) ToStyle() chart.Style {
|
||
s := chart.Style{
|
||
FontSize: et.FontSize,
|
||
FontColor: parseColor(et.Color),
|
||
}
|
||
if et.FontFamily != "" {
|
||
s.Font, _ = GetFont(et.FontFamily)
|
||
}
|
||
return s
|
||
}
|
||
|
||
type EChartsOption struct {
|
||
Type string `json:"type"`
|
||
Theme string `json:"theme"`
|
||
FontFamily string `json:"fontFamily"`
|
||
Padding EChartsPadding `json:"padding"`
|
||
Box chart.Box `json:"box"`
|
||
Width int `json:"width"`
|
||
Height int `json:"height"`
|
||
Title struct {
|
||
Text string `json:"text"`
|
||
Subtext string `json:"subtext"`
|
||
Left EChartsPosition `json:"left"`
|
||
Top EChartsPosition `json:"top"`
|
||
TextStyle EChartsTextStyle `json:"textStyle"`
|
||
SubtextStyle EChartsTextStyle `json:"subtextStyle"`
|
||
} `json:"title"`
|
||
XAxis EChartsXAxis `json:"xAxis"`
|
||
YAxis EChartsYAxis `json:"yAxis"`
|
||
Legend EChartsLegend `json:"legend"`
|
||
Radar struct {
|
||
Indicator []RadarIndicator `json:"indicator"`
|
||
} `json:"radar"`
|
||
Series EChartsSeriesList `json:"series"`
|
||
Children []EChartsOption `json:"children"`
|
||
}
|
||
|
||
func (eo *EChartsOption) ToOption() ChartOption {
|
||
fontFamily := eo.FontFamily
|
||
if len(fontFamily) == 0 {
|
||
fontFamily = eo.Title.TextStyle.FontFamily
|
||
}
|
||
o := ChartOption{
|
||
Type: eo.Type,
|
||
FontFamily: fontFamily,
|
||
Theme: eo.Theme,
|
||
Title: TitleOption{
|
||
Text: eo.Title.Text,
|
||
Subtext: eo.Title.Subtext,
|
||
Style: eo.Title.TextStyle.ToStyle(),
|
||
SubtextStyle: eo.Title.SubtextStyle.ToStyle(),
|
||
Left: string(eo.Title.Left),
|
||
Top: string(eo.Title.Top),
|
||
},
|
||
Legend: LegendOption{
|
||
Show: eo.Legend.Show,
|
||
Style: eo.Legend.TextStyle.ToStyle(),
|
||
Data: eo.Legend.Data,
|
||
Left: string(eo.Legend.Left),
|
||
Top: string(eo.Legend.Top),
|
||
Align: eo.Legend.Align,
|
||
Orient: eo.Legend.Orient,
|
||
},
|
||
RadarIndicators: eo.Radar.Indicator,
|
||
Width: eo.Width,
|
||
Height: eo.Height,
|
||
Padding: eo.Padding.Box,
|
||
Box: eo.Box,
|
||
SeriesList: eo.Series.ToSeriesList(),
|
||
}
|
||
if len(eo.XAxis.Data) != 0 {
|
||
xAxisData := eo.XAxis.Data[0]
|
||
o.XAxis = XAxisOption{
|
||
BoundaryGap: xAxisData.BoundaryGap,
|
||
Data: xAxisData.Data,
|
||
SplitNumber: xAxisData.SplitNumber,
|
||
}
|
||
}
|
||
yAxisOptions := make([]YAxisOption, len(eo.YAxis.Data))
|
||
for index, item := range eo.YAxis.Data {
|
||
yAxisOptions[index] = YAxisOption{
|
||
Min: item.Min,
|
||
Max: item.Max,
|
||
Formatter: item.AxisLabel.Formatter,
|
||
Color: parseColor(item.AxisLine.LineStyle.Color),
|
||
}
|
||
}
|
||
o.YAxisList = yAxisOptions
|
||
|
||
if len(eo.Children) != 0 {
|
||
o.Children = make([]ChartOption, len(eo.Children))
|
||
for index, item := range eo.Children {
|
||
o.Children[index] = item.ToOption()
|
||
}
|
||
}
|
||
return o
|
||
}
|
||
|
||
func renderEcharts(options, outputType string) ([]byte, error) {
|
||
o := EChartsOption{}
|
||
err := json.Unmarshal([]byte(options), &o)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
opt := o.ToOption()
|
||
opt.Type = outputType
|
||
d, err := Render(opt)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return d.Bytes()
|
||
}
|
||
|
||
func RenderEChartsToPNG(options string) ([]byte, error) {
|
||
return renderEcharts(options, "png")
|
||
}
|
||
|
||
func RenderEChartsToSVG(options string) ([]byte, error) {
|
||
return renderEcharts(options, "svg")
|
||
}
|