89 lines
2.5 KiB
Go
89 lines
2.5 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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type gridPainter struct {
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p *Painter
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opt *GridPainterOption
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}
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type GridPainterOption struct {
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// The stroke width
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StrokeWidth float64
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// The stroke color
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StrokeColor Color
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// The column of grid
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Column int
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// The row of grid
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Row int
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// Ignore first row
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IgnoreFirstRow bool
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// Ignore last row
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IgnoreLastRow bool
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// Ignore first column
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IgnoreFirstColumn bool
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// Ignore last column
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IgnoreLastColumn bool
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}
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// NewGridPainter returns new a grid renderer
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func NewGridPainter(p *Painter, opt GridPainterOption) *gridPainter {
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return &gridPainter{
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p: p,
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opt: &opt,
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}
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}
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func (g *gridPainter) Render() (Box, error) {
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opt := g.opt
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ignoreColumnLines := make([]int, 0)
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if opt.IgnoreFirstColumn {
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ignoreColumnLines = append(ignoreColumnLines, 0)
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}
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if opt.IgnoreLastColumn {
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ignoreColumnLines = append(ignoreColumnLines, opt.Column)
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}
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ignoreRowLines := make([]int, 0)
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if opt.IgnoreFirstRow {
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ignoreRowLines = append(ignoreRowLines, 0)
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}
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if opt.IgnoreLastRow {
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ignoreRowLines = append(ignoreRowLines, opt.Row)
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}
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strokeWidth := opt.StrokeWidth
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if strokeWidth <= 0 {
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strokeWidth = 1
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}
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g.p.SetDrawingStyle(Style{
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StrokeWidth: strokeWidth,
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StrokeColor: opt.StrokeColor,
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})
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g.p.Grid(GridOption{
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Column: opt.Column,
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Row: opt.Row,
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IgnoreColumnLines: ignoreColumnLines,
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IgnoreRowLines: ignoreRowLines,
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})
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return g.p.box, nil
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}
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