55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
// 30 july 2014
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package ui
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// #include "winapi_windows.h"
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import "C"
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type controlbase struct {
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*controldefs
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hwnd C.HWND
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parent C.HWND // for Tab and Group
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textlen C.LONG
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}
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type controlParent struct {
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hwnd C.HWND
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}
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func newControl(class C.LPWSTR, style C.DWORD, extstyle C.DWORD) *controlbase {
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c := new(controlbase)
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c.hwnd = C.newWidget(class, style, extstyle)
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c.controldefs = new(controldefs)
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c.fsetParent = func(p *controlParent) {
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C.controlSetParent(c.hwnd, p.hwnd)
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c.parent = p.hwnd
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}
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c.fcontainerShow = func() {
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C.ShowWindow(c.hwnd, C.SW_SHOW)
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}
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c.fcontainerHide = func() {
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C.ShowWindow(c.hwnd, C.SW_HIDE)
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}
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c.fallocate = baseallocate(c)
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// don't specify c.fpreferredSize; it is custom on ALL controls
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c.fcommitResize = func(a *allocation, d *sizing) {
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C.moveWindow(c.hwnd, C.int(a.x), C.int(a.y), C.int(a.width), C.int(a.height))
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}
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c.fgetAuxResizeInfo = func(d *sizing) {
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// do nothing
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}
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return c
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}
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// these are provided for convenience
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func (c *controlbase) text() string {
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return getWindowText(c.hwnd)
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}
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func (c *controlbase) setText(text string) {
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t := toUTF16(text)
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C.setWindowText(c.hwnd, t)
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c.textlen = C.controlTextLength(c.hwnd, t)
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}
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