55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
|
// 25 june 2014
|
||
|
|
|
||
|
|
package ui
|
||
|
|
|
||
|
|
type allocation struct {
|
||
|
|
x int
|
||
|
|
y int
|
||
|
|
width int
|
||
|
|
height int
|
||
|
|
this Control
|
||
|
|
neighbor Control
|
||
|
|
}
|
||
|
|
|
||
|
|
// for verification; see sysdata.go
|
||
|
|
type sysDataSizeFuncs 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)
|
||
|
|
for _, c := range s.allocations {
|
||
|
|
c.this.commitResize(c, 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)
|
||
|
|
}
|
||
|
|
|
||
|
|
// vertical stack: no concept of neighbor, but not too hard to add a vertical neighbor
|
||
|
|
// horizontal stack:
|
||
|
|
var current *allocation
|
||
|
|
// ...
|
||
|
|
as := s.controls[i].allocate(...)
|
||
|
|
if current != nil {
|
||
|
|
current.neighbor = as[0].self
|
||
|
|
}
|
||
|
|
current = as[0]
|
||
|
|
// append all of as
|
||
|
|
// grid:
|
||
|
|
// same as above, except current is set to nil on each new row
|
||
|
|
// adding a vertical neighbor would require storing an extra list
|