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// 30 july 2014
package ui
// #include "winapi_windows.h"
import "C"
type controlPrivate interface {
// TODO
Control
}
type controlbase struct {
hwnd C.HWND
parent C.HWND // for Tab and Group
textlen C.LONG
}
type controlParent struct {
hwnd C.HWND
}
func newControl(class C.LPWSTR, style C.DWORD, extstyle C.DWORD) *controlbase {
c := new(controlbase)
// TODO rename to newWidget
c.hwnd = C.newWidget(class, style, extstyle)
return c
}
// TODO for maximum correctness these shouldn't take controlbases... but then the amount of duplicated code would skyrocket
func basesetParent(c *controlbase, p *controlParent) {
C.controlSetParent(c.hwnd, p.hwnd)
c.parent = p.hwnd
}
func basecontainerShow(c *controlbase) {
C.ShowWindow(c.hwnd, C.SW_SHOW)
}
func basecontainerHide(c *controlbase) {
C.ShowWindow(c.hwnd, C.SW_HIDE)
}
// don't specify basepreferredSize; it is custom on ALL controls
func basecommitResize(c *controlbase, a *allocation, d *sizing) {
C.moveWindow(c.hwnd, C.int(a.x), C.int(a.y), C.int(a.width), C.int(a.height))
}
func basegetAuxResizeInfo(c controlPrivate, d *sizing) {
// do nothing
}
// these are provided for convenience
func (c *controlbase) text() string {
return getWindowText(c.hwnd)
}
func (c *controlbase) setText(text string) {
t := toUTF16(text)
C.setWindowText(c.hwnd, t)
c.textlen = C.controlTextLength(c.hwnd, t)
}
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