50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
package ui
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import (
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"opslag.de/schobers/geom"
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)
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type Button struct {
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ControlBase
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Text string
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}
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func BuildButton(text string, factory func(b *Button)) *Button {
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var b = &Button{Text: text}
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factory(b)
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return b
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}
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func (b *Button) DesiredSize(ctx Context) geom.PointF32 {
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var fontName = b.fontName(ctx)
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var font = ctx.Renderer().Font(fontName)
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var width = font.WidthOf(b.Text)
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var height = font.Height()
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var pad = ctx.Style().Dimensions.TextPadding
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return geom.PtF32(width+pad*2, height+pad*2)
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}
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func (b *Button) Handle(ctx Context, e Event) {
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b.ControlBase.Handle(ctx, e)
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if b.over {
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ctx.Renderer().SetMouseCursor(MouseCursorPointer)
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}
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}
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func (b *Button) Render(ctx Context) {
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var fore = b.FontColor
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var style = ctx.Style()
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if fore == nil {
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fore = style.Palette.TextOnPrimary
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}
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var fill = style.Palette.Primary
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if b.over {
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fill = style.Palette.PrimaryHighlight
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}
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var pad = style.Dimensions.TextPadding
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var font = b.fontName(ctx)
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ctx.Renderer().FillRectangle(b.bounds, fill)
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ctx.Renderer().Text(b.bounds.Min.Add(geom.PtF32(pad, pad)), font, fore, b.Text)
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}
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