49 lines
1.3 KiB
Go
49 lines
1.3 KiB
Go
// 25 june 2014
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package ui
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type allocation struct {
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x int
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y int
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width int
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height int
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this Control
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neighbor Control
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}
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type cSysSizeData struct {
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xmargin int
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ymargin int
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xpadding int
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ypadding int
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}
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// for verification; see sysdata.go
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type sysDataSizingFunctions interface {
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beginResize() *sysSizeData
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endResize(*sysSizeData)
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translateAllocationCoords([]*allocation, int, int)
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preferredSize(*sysSizeData) (int, int)
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commitResize(*allocation, *sysSizeData)
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getAuxResizeInfo(*sysSizeData)
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}
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func (s *sysData) resizeWindow(width, height int) {
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d := s.beginResize()
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allocations := s.allocate(0, 0, width, height, d)
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s.translateAllocationCoords(allocations, width, height)
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// move in reverse so as to approximate right->left order so neighbors make sense
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for i := len(allocations) - 1; i >= 0; i-- {
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allocations[i].this.commitResize(allocations[i], d)
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}
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s.endResize(d)
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}
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// non-layout controls: allocate() should just return a one-element slice; preferredSize(), commitResize(), and getAuxResizeInfo() should defer to their sysData equivalents
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type controlSizing interface {
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allocate(x int, y int, width int, height int, d *sysSizeData) []*allocation
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preferredSize(d *sysSizeData) (width, height int)
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commitResize(c *allocation, d *sysSizeData)
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getAuxResizeInfo(d *sysSizeData)
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}
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