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// 30 july 2014
package ui
// #include "objc_darwin.h"
import "C"
type controlbase struct {
*controldefs
id C.id
}
type controlParent struct {
id C.id
}
func newControl(id C.id) *controlbase {
c := new(controlbase)
c.id = id
c.controldefs = new(controldefs)
c.fsetParent = func(p *controlParent) {
// redrawing the new window handled by C.parent()
C.parent(c.id, p.id)
}
c.fcontainerShow = func() {
C.controlSetHidden(c.id, C.NO)
}
c.fcontainerHide = func() {
C.controlSetHidden(c.id, C.YES)
}
c.fallocate = func(x int, y int, width int, height int, d *sizing) []*allocation {
// TODO split into its own function
return []*allocation{&allocation{
x: x,
y: y,
width: width,
height: height,
this: c,
}}
}
c.fpreferredSize = func(d *sizing) (int, int) {
// TODO
return 64, 32
}
c.fcommitResize = func(a *allocation, d *sizing) {
//TODO
/*
if s.ctype == c_label && !s.alternate && c.neighbor != nil {
c.neighbor.getAuxResizeInfo(d)
if d.neighborAlign.baseline != 0 { // no adjustment needed if the given control has no baseline
// in order for the baseline value to be correct, the label MUST BE AT THE HEIGHT THAT OS X WANTS IT TO BE!
// otherwise, the baseline calculation will be relative to the bottom of the control, and everything will be wrong
origsize := C.controlPrefSize(s.id)
c.height = int(origsize.height)
newrect := C.struct_xrect{
x: C.intptr_t(c.x),
y: C.intptr_t(c.y),
width: C.intptr_t(c.width),
height: C.intptr_t(c.height),
}
ourAlign := C.alignmentInfo(s.id, newrect)
// we need to find the exact Y positions of the baselines
// fortunately, this is easy now that (x,y) is the bottom-left corner
thisbasey := ourAlign.alignmentRect.y + ourAlign.baseline
neighborbasey := d.neighborAlign.alignmentRect.y + d.neighborAlign.baseline
// now the amount we have to move the label down by is easy to find
yoff := neighborbasey - thisbasey
// and we just add that
c.y += int(yoff)
}
// TODO if there's no baseline, the alignment should be to the top /of the alignment rect/, not the frame
}
*/
C.moveControl(c.id, C.intptr_t(a.x), C.intptr_t(a.y), C.intptr_t(a.width), C.intptr_t(a.height))
}
c.fgetAuxResizeInfo = func(d *sizing) {
// TODO
// d.neighborAlign = C.alignmentInfo(s.id, C.frame(s.id))
}
return c
}
type scrolledcontrol struct {
*controlbase
scroller *controlbase
}
func newScrolledControl(id C.id) *scrolledcontrol {
scroller := C.newScrollView(id)
s := &scrolledcontrol{
controlbase: newControl(id),
scroller: newControl(scroller),
}
s.fsetParent = s.scroller.fsetParent
s.fcommitResize = s.scroller.fcommitResize
return s
}
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