andlabs-ui/label.go

86 lines
1.8 KiB
Go

// 12 december 2015
package ui
import (
"unsafe"
)
// #include "ui.h"
import "C"
// Label is a Control that represents a line of text that cannot be
// interacted with. TODO rest of documentation.
type Label struct {
c *C.uiControl
l *C.uiLabel
}
// NewLabel creates a new Label with the given text.
func NewLabel(text string) *Label {
l := new(Label)
ctext := C.CString(text)
l.l = C.uiNewLabel(ctext)
l.c = (*C.uiControl)(unsafe.Pointer(l.l))
freestr(ctext)
return l
}
// Destroy destroys the Label.
func (l *Label) Destroy() {
C.uiControlDestroy(l.c)
}
// LibuiControl returns the libui uiControl pointer that backs
// the Window. This is only used by package ui itself and should
// not be called by programs.
func (l *Label) LibuiControl() uintptr {
return uintptr(unsafe.Pointer(l.c))
}
// Handle returns the OS-level handle associated with this Label.
// On Windows this is an HWND of a standard Windows API STATIC
// class (as provided by Common Controls version 6).
// On GTK+ this is a pointer to a GtkLabel.
// On OS X this is a pointer to a NSTextField.
func (l *Label) Handle() uintptr {
return uintptr(C.uiControlHandle(l.c))
}
// Show shows the Label.
func (l *Label) Show() {
C.uiControlShow(l.c)
}
// Hide hides the Label.
func (l *Label) Hide() {
C.uiControlHide(l.c)
}
// Enable enables the Label.
func (l *Label) Enable() {
C.uiControlEnable(l.c)
}
// Disable disables the Label.
func (l *Label) Disable() {
C.uiControlDisable(l.c)
}
// Text returns the Label's text.
func (l *Label) Text() string {
ctext := C.uiLabelText(l.l)
text := C.GoString(ctext)
C.uiFreeText(ctext)
return text
}
// SetText sets the Label's text to text.
func (l *Label) SetText(text string) {
ctext := C.CString(text)
C.uiLabelSetText(l.l, ctext)
freestr(ctext)
}