72 lines
1.4 KiB
Go
72 lines
1.4 KiB
Go
// +build !windows,!darwin
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// 23 february 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 "gtk_unix.h"
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import "C"
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type container struct {
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containerbase
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layoutwidget *C.GtkWidget
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layoutcontainer *C.GtkContainer
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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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// gtk+ needs nothing
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// for the actual resizing
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shouldVAlignTop bool
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}
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func newContainer(child Control) *container {
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c := new(container)
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widget := C.newContainer(unsafe.Pointer(c))
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c.layoutwidget = widget
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c.layoutcontainer = (*C.GtkContainer)(unsafe.Pointer(widget))
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c.child = child
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c.child.setParent(&controlParent{c.layoutcontainer})
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return c
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}
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func (c *container) setParent(p *controlParent) {
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C.gtk_container_add(p.c, c.layoutwidget)
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}
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//export containerResizing
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func containerResizing(data unsafe.Pointer, r *C.GtkAllocation) {
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c := (*container)(data)
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c.resize(int(r.x), int(r.y), int(r.width), int(r.height))
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}
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const (
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gtkXMargin = 12
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gtkYMargin = 12
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gtkXPadding = 12
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gtkYPadding = 6
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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 = gtkXMargin
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d.ymargintop = gtkYMargin
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d.ymarginbottom = d.ymargintop
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d.xpadding = gtkXPadding
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d.ypadding = gtkYPadding
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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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// no need for coordinate conversion with gtk+
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}
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