1 files changed, 79 insertions, 0 deletions
diff --git a/prev/container_darwin.go b/prev/container_darwin.go
new file mode 100644
index 0000000..02ccca4
--- /dev/null
+++ b/prev/container_darwin.go
@@ -0,0 +1,79 @@
+// 4 august 2014
+
+package ui
+
+import (
+	"unsafe"
+)
+
+// #include "objc_darwin.h"
+import "C"
+
+type container struct {
+	id			C.id
+	resize		func(x int, y int, width int, height int, d *sizing)
+	margined		bool
+}
+
+type sizing struct {
+	sizingbase
+
+	// for size calculations
+	// nothing on Mac OS X
+
+	// for the actual resizing
+	neighborAlign C.struct_xalignment
+}
+
+// containerResized() gets called early so we have to do this in the constructor
+func newContainer(resize func(x int, y int, width int, height int, d *sizing)) *container {
+	c := new(container)
+	c.resize = resize
+	c.id = C.newContainerView(unsafe.Pointer(c))
+	return c
+}
+
+func (c *container) parent() *controlParent {
+	return &controlParent{c.id}
+}
+
+//export containerResized
+func containerResized(data unsafe.Pointer) {
+	c := (*container)(data)
+	d := beginResize()
+	// TODO make this a parameter
+	b := C.containerBounds(c.id)
+	if c.margined {
+		b.x += C.intptr_t(macXMargin)
+		b.y += C.intptr_t(macYMargin)
+		b.width -= C.intptr_t(macXMargin) * 2
+		b.height -= C.intptr_t(macYMargin) * 2
+	}
+	c.resize(int(b.x), int(b.y), int(b.width), int(b.height), d)
+}
+
+// These are based on measurements from Interface Builder.
+// TODO reverify these against /layout rects/, not /frame rects/
+const (
+	macXMargin  = 20
+	macYMargin  = 20
+	macXPadding = 8
+	macYPadding = 8
+)
+
+func beginResize() (d *sizing) {
+	d = new(sizing)
+	d.xpadding = macXPadding
+	d.ypadding = macYPadding
+	return d
+}
+
+/*TODO
+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
+	}
+}
+*/