1 files changed, 70 insertions, 0 deletions
diff --git a/prev/container_unix.go b/prev/container_unix.go
new file mode 100644
index 0000000..c9ed89c
--- /dev/null
+++ b/prev/container_unix.go
@@ -0,0 +1,70 @@
+// +build !windows,!darwin
+
+// 23 february 2014
+
+package ui
+
+import (
+	"unsafe"
+)
+
+// #include "gtk_unix.h"
+import "C"
+
+// TODO avoid direct access to contents?
+type container struct {
+	widget		*C.GtkWidget
+	container		*C.GtkContainer
+	resize		func(x int, y int, width int, height int, d *sizing)
+	margined		bool
+}
+
+type sizing struct {
+	sizingbase
+
+	// for size calculations
+	// gtk+ needs nothing
+
+	// for the actual resizing
+	// gtk+ needs nothing
+}
+
+func newContainer() *container {
+	c := new(container)
+	c.widget = C.newContainer(unsafe.Pointer(c))
+	c.container = (*C.GtkContainer)(unsafe.Pointer(c.widget))
+	return c
+}
+
+func (c *container) parent() *controlParent {
+	return &controlParent{c.container}
+}
+
+//export containerResize
+func containerResize(data unsafe.Pointer, aorig *C.GtkAllocation) {
+	c := (*container)(data)
+	d := beginResize()
+	// copy aorig
+	a := *aorig
+	if c.margined {
+		a.x += C.int(gtkXMargin)
+		a.y += C.int(gtkYMargin)
+		a.width -= C.int(gtkXMargin) * 2
+		a.height -= C.int(gtkYMargin) * 2
+	}
+	c.resize(int(a.x), int(a.y), int(a.width), int(a.height), d)
+}
+
+const (
+	gtkXMargin  = 12
+	gtkYMargin  = 12
+	gtkXPadding = 12
+	gtkYPadding = 6
+)
+
+func beginResize() (d *sizing) {
+	d = new(sizing)
+	d.xpadding = gtkXPadding
+	d.ypadding = gtkYPadding
+	return d
+}