Added Label.

label.go

@@ -0,0 +1,85 @@
+// 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)
+}

zz_test.go

@@ -11,11 +11,8 @@ func TestIt(t *testing.T) {
 			Quit()
 			return true
 		})
-		e := NewEntry()
-		e.OnChanged(func(*Entry) {
-			w.SetTitle(e.Text())
-		})
-		w.SetChild(e)
+		l := NewLabel("A Label")
+		w.SetChild(l)
 		w.Show()
 	})
 	if err != nil {