45 lines
1.0 KiB
Go
45 lines
1.0 KiB
Go
package views
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import "git.tordarus.net/Tordarus/tui"
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// MarginView is a tui.Wrapper which applies margin around its view
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type MarginView struct {
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tui.WrapperTmpl
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Margin map[tui.Side]int
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}
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var _ tui.Wrapper = &MarginView{}
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func NewMarginView(view tui.View) *MarginView {
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v := new(MarginView)
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v.SetView(view)
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v.SetMargin(0, 0, 0, 0)
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return v
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}
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func (g *MarginView) Draw(buf *tui.ViewBuffer) {
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x := g.Margin[tui.SideLeft]
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y := g.Margin[tui.SideTop]
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w := buf.Width() - x - g.Margin[tui.SideRight]
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h := buf.Height() - y - g.Margin[tui.SideBottom]
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g.ViewTmpl.Draw(buf)
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g.View().Draw(buf.Sub(x, y, w, h))
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}
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func (v *MarginView) Layout() (prefWidth, prefHeight int) {
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w, h := v.View().Layout()
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w = iff(w > 0, w+v.Margin[tui.SideLeft]+v.Margin[tui.SideRight], w)
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h = iff(h > 0, h+v.Margin[tui.SideTop]+v.Margin[tui.SideBottom], h)
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return w, h
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}
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func (v *MarginView) SetMargin(top, right, bottom, left int) {
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v.Margin = map[tui.Side]int{
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tui.SideTop: top,
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tui.SideRight: right,
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tui.SideBottom: bottom,
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tui.SideLeft: left,
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}
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}
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