64 lines
1.6 KiB
Go
64 lines
1.6 KiB
Go
// 12 december 2015
|
|
|
|
package ui
|
|
|
|
import (
|
|
"unsafe"
|
|
)
|
|
|
|
// #include "pkgui.h"
|
|
import "C"
|
|
|
|
// RadioButtons is a Control that represents a set of checkable
|
|
// buttons from which exactly one may be chosen by the user.
|
|
type RadioButtons struct {
|
|
ControlBase
|
|
r *C.uiRadioButtons
|
|
onSelected func(*RadioButtons)
|
|
}
|
|
|
|
// NewRadioButtons creates a new RadioButtons.
|
|
func NewRadioButtons() *RadioButtons {
|
|
r := new(RadioButtons)
|
|
|
|
r.r = C.uiNewRadioButtons()
|
|
|
|
C.pkguiRadioButtonsOnSelected(r.r)
|
|
|
|
r.ControlBase = NewControlBase(r, uintptr(unsafe.Pointer(r.r)))
|
|
return r
|
|
}
|
|
|
|
// Append adds the named button to the end of the RadioButtons.
|
|
func (r *RadioButtons) Append(text string) {
|
|
ctext := C.CString(text)
|
|
C.uiRadioButtonsAppend(r.r, ctext)
|
|
freestr(ctext)
|
|
}
|
|
|
|
// Selected returns the index of the currently selected option in the
|
|
// RadioButtons, or -1 if no item is selected.
|
|
func (r *RadioButtons) Selected() int {
|
|
return int(C.uiRadioButtonsSelected(r.r))
|
|
}
|
|
|
|
// SetSelected sets the currently selected option in the RadioButtons
|
|
// to index.
|
|
func (r *RadioButtons) SetSelected(index int) {
|
|
C.uiRadioButtonsSetSelected(r.r, C.int(index))
|
|
}
|
|
|
|
// OnSelected registers f to be run when the user selects an option in
|
|
// the RadioButtons. Only one function can be registered at a time.
|
|
func (r *RadioButtons) OnSelected(f func(*RadioButtons)) {
|
|
r.onSelected = f
|
|
}
|
|
|
|
//export pkguiDoRadioButtonsOnSelected
|
|
func pkguiDoRadioButtonsOnSelected(rr *C.uiRadioButtons, data unsafe.Pointer) {
|
|
r := ControlFromLibui(uintptr(unsafe.Pointer(rr))).(*RadioButtons)
|
|
if r.onSelected != nil {
|
|
r.onSelected(r)
|
|
}
|
|
}
|