84 lines
1.4 KiB
Go
84 lines
1.4 KiB
Go
// 16 july 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 "objc_darwin.h"
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import "C"
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// TODO move to common_darwin.go
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func toBOOL(b bool) C.BOOL {
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if b == true {
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return C.YES
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}
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return C.NO
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}
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type widgetbase struct {
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id C.id
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parentw *window
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floating bool
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}
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func newWidget(id C.id) *widgetbase {
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return &widgetbase{
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id: id,
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}
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}
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// these few methods are embedded by all the various Controls since they all will do the same thing
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func (w *widgetbase) unparent() {
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if w.parentw != nil {
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C.unparent(w.id)
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w.floating = true
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w.parentw = nil
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}
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}
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func (w *widgetbase) parent(win *window) {
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C.parent(w.id, win.id, toBOOL(w.floating))
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w.floating = false
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w.parentw = win
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}
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type button struct {
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*widgetbase
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clicked *event
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}
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func newButton(text string) *button {
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ctext := C.CString(text)
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defer C.free(unsafe.Pointer(ctext))
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b := &button{
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widgetbase: newWidget(C.newButton(ctext)),
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clicked: newEvent(),
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}
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C.buttonSetDelegate(b.id, unsafe.Pointer(b))
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return b
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}
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func (b *button) OnClicked(e func()) {
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b.clicked.set(e)
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}
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//export buttonClicked
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func buttonClicked(xb unsafe.Pointer) {
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b := (*button)(unsafe.Pointer(xb))
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b.clicked.fire()
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println("button clicked")
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}
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func (b *button) Text() string {
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return C.GoString(C.buttonText(b.id))
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}
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func (b *button) SetText(text string) {
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ctext := C.CString(text)
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defer C.free(unsafe.Pointer(ctext))
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C.buttonSetText(b.id, ctext)
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}
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