95 lines
2.9 KiB
Go
95 lines
2.9 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/wcharczuk/go-chart/v2"
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"github.com/wcharczuk/go-chart/v2/drawing"
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)
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type YAxisOption struct {
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// The minimun value of axis.
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Min *float64
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// The maximum value of axis.
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Max *float64
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// Hidden y axis
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Hidden bool
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// Formatter for y axis text value
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Formatter string
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// Color for y axis
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Color drawing.Color
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}
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// TODO 长度是否可以变化
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const YAxisWidth = 40
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func drawYAxis(p *Painter, opt *ChartOption, axisIndex, xAxisHeight int, padding chart.Box) (*Range, error) {
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theme := NewTheme(opt.Theme)
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yRange := opt.newYRange(axisIndex)
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values := yRange.Values()
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yAxis := opt.YAxisList[axisIndex]
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formatter := yAxis.Formatter
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if len(formatter) != 0 {
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for index, text := range values {
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values[index] = strings.ReplaceAll(formatter, "{value}", text)
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}
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}
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data := NewAxisDataListFromStringList(values)
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style := AxisOption{
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Position: PositionLeft,
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BoundaryGap: FalseFlag(),
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FontColor: theme.GetAxisStrokeColor(),
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TickShow: FalseFlag(),
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StrokeWidth: 1,
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SplitLineColor: theme.GetAxisSplitLineColor(),
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SplitLineShow: true,
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}
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if !yAxis.Color.IsZero() {
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style.FontColor = yAxis.Color
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style.StrokeColor = yAxis.Color
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}
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width := NewAxis(p, data, style).measure().Width
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yAxisCount := len(opt.YAxisList)
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boxWidth := p.Width()
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if axisIndex > 0 {
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style.SplitLineShow = false
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style.Position = PositionRight
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padding.Right += (axisIndex - 1) * YAxisWidth
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} else {
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boxWidth = p.Width() - (yAxisCount-1)*YAxisWidth
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padding.Left += (YAxisWidth - width)
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}
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pYAxis := p.Child(
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PainterWidthHeightOption(boxWidth, p.Height()-xAxisHeight),
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PainterPaddingOption(padding),
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PainterFontOption(opt.Font),
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)
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NewAxis(pYAxis, data, style).Render()
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yRange.Size = pYAxis.Height()
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return &yRange, nil
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}
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