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// 4 august 2014
package ui
import (
"unsafe"
)
// #include "objc_darwin.h"
import "C"
type container struct {
containerbase
id C.id
}
type sizing struct {
sizingbase
// for size calculations
// nothing for mac
// for the actual resizing
neighborAlign C.struct_xalignment
}
func newContainer(child Control) *container {
c := new(container)
c.id = C.newContainerView(unsafe.Pointer(c))
c.child = child
c.child.setParent(&controlParent{c.id})
return c
}
//export containerResized
func containerResized(data unsafe.Pointer, width C.intptr_t, height C.intptr_t) {
c := (*container)(unsafe.Pointer(data))
// the origin of a view's content area is always (0, 0)
c.resize(0, 0, int(width), int(height))
}
// These are based on measurements from Interface Builder.
const (
macXMargin = 20
macYMargin = 20
macXPadding = 8
macYPadding = 8
)
func (c *container) beginResize() (d *sizing) {
d = new(sizing)
if c.spaced {
d.xmargin = macXMargin
d.ymargintop = macYMargin
d.ymarginbottom = d.ymargintop
d.xpadding = macXPadding
d.ypadding = macYPadding
}
return d
}
func (c *container) translateAllocationCoords(allocations []*allocation, winwidth, winheight int) {
for _, a := range allocations {
// winheight - y because (0,0) is the bottom-left corner of the window and not the top-left corner
// (winheight - y) - height because (x, y) is the bottom-left corner of the control and not the top-left
a.y = (winheight - a.y) - a.height
}
}
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