41 lines
976 B
Go
41 lines
976 B
Go
package ui
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import (
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"opslag.de/schobers/geom"
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)
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var _ Control = &stretch{}
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type stretch struct {
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Proxy
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w, h bool
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}
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func (s *stretch) DesiredSize(ctx Context) geom.PointF32 {
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var size = geom.PtF32(geom.NaN32(), geom.NaN32())
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if !s.w || !s.h {
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child := s.Content.DesiredSize(ctx)
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if !s.w {
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size.X = child.X
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}
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if !s.h {
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size.Y = child.Y
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}
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}
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return size
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}
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func newStretch(c Control, w, h bool) *stretch {
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return &stretch{Proxy{Content: c}, w, h}
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}
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// Stretch wraps the supplied control to stretch in both directions.
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func Stretch(c Control) Control { return newStretch(c, true, true) }
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// StretchHeight wraps the supplied control to stretch vertically. Width is taken from wrapped control.
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func StretchHeight(c Control) Control { return newStretch(c, false, true) }
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// StretchWidth wraps the supplied control to stretch horizontally. Height is taken from wrapped control.
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func StretchWidth(c Control) Control { return newStretch(c, true, false) }
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