77 lines
1.8 KiB
Go
77 lines
1.8 KiB
Go
// 12 december 2015
|
|
|
|
package ui
|
|
|
|
import (
|
|
"unsafe"
|
|
)
|
|
|
|
// #include "ui.h"
|
|
// extern void doCheckboxOnToggled(uiCheckbox *, void *);
|
|
// // see golang/go#19835
|
|
// typedef void (*checkboxCallback)(uiCheckbox *, void *);
|
|
import "C"
|
|
|
|
// Checkbox is a Control that represents a box with a text label at its
|
|
// side. When the user clicks the checkbox, a check mark will appear
|
|
// in the box; clicking it again removes the check.
|
|
type Checkbox struct {
|
|
ControlBase
|
|
c *C.uiCheckbox
|
|
onToggled func(*Checkbox)
|
|
}
|
|
|
|
// NewCheckbox creates a new Checkbox with the given text as its
|
|
// label.
|
|
func NewCheckbox(text string) *Checkbox {
|
|
c := new(Checkbox)
|
|
|
|
ctext := C.CString(text)
|
|
c.c = C.uiNewCheckbox(ctext)
|
|
freestr(ctext)
|
|
|
|
C.uiCheckboxOnToggled(c.c, C.checkboxCallback(C.doCheckboxOnToggled), nil)
|
|
|
|
c.ControlBase = NewControlBase(c, uintptr(unsafe.Pointer(c.c)))
|
|
return c
|
|
}
|
|
|
|
// Text returns the Checkbox's text.
|
|
func (c *Checkbox) Text() string {
|
|
ctext := C.uiCheckboxText(c.c)
|
|
text := C.GoString(ctext)
|
|
C.uiFreeText(ctext)
|
|
return text
|
|
}
|
|
|
|
// SetText sets the Checkbox's text to text.
|
|
func (c *Checkbox) SetText(text string) {
|
|
ctext := C.CString(text)
|
|
C.uiCheckboxSetText(c.c, ctext)
|
|
freestr(ctext)
|
|
}
|
|
|
|
// OnToggled registers f to be run when the user clicks the Checkbox.
|
|
// Only one function can be registered at a time.
|
|
func (c *Checkbox) OnToggled(f func(*Checkbox)) {
|
|
c.onToggled = f
|
|
}
|
|
|
|
//export doCheckboxOnToggled
|
|
func doCheckboxOnToggled(cc *C.uiCheckbox, data unsafe.Pointer) {
|
|
c := ControlFromLibui(uintptr(unsafe.Pointer(cc))).(*Checkbox)
|
|
if c.onToggled != nil {
|
|
c.onToggled(c)
|
|
}
|
|
}
|
|
|
|
// Checked returns whether the Checkbox is checked.
|
|
func (c *Checkbox) Checked() bool {
|
|
return tobool(C.uiCheckboxChecked(c.c))
|
|
}
|
|
|
|
// SetChecked sets whether the Checkbox is checked.
|
|
func (c *Checkbox) SetChecked(checked bool) {
|
|
C.uiCheckboxSetChecked(c.c, frombool(checked))
|
|
}
|