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