51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
package canvas
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import (
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"image/color"
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"math"
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)
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// SetFillStyle 设置填充样式
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func (c *Context) SetFillStyle(style interface{}) {
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switch s := style.(type) {
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case color.Color, Gradient:
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c.state.fillStyle = s
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}
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}
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// SetStrokeStyle 设置描边样式
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func (c *Context) SetStrokeStyle(style interface{}) {
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switch s := style.(type) {
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case color.Color, Gradient:
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c.state.strokeStyle = s
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}
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}
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// SetFillColor 设置填充颜色
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func (c *Context) SetFillColor(color color.Color) {
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c.state.fillStyle = color
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}
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// SetStrokeColor 设置描边颜色
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func (c *Context) SetStrokeColor(color color.Color) {
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c.state.strokeStyle = color
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}
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// SetLineWidth 设置线宽
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func (c *Context) SetLineWidth(width float64) {
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c.state.lineWidth = width
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}
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// SetGlobalAlpha 设置全局透明度
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func (c *Context) SetGlobalAlpha(alpha float64) {
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c.state.globalAlpha = math.Max(0, math.Min(1, alpha))
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}
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// SetShadow 设置阴影
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func (c *Context) SetShadow(offsetX, offsetY, blur float64, color color.Color) {
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c.state.shadowOffsetX = offsetX
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c.state.shadowOffsetY = offsetY
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c.state.shadowBlur = blur
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c.state.shadowColor = color
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}
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