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