1 files changed, 77 insertions, 0 deletions
diff --git a/progressbar.go b/progressbar.go
new file mode 100644
index 0000000..ef5116c
--- /dev/null
+++ b/progressbar.go
@@ -0,0 +1,77 @@
+// 12 december 2015
+
+package ui
+
+import (
+	"unsafe"
+)
+
+// #include "ui.h"
+import "C"
+
+// ProgressBar is a Control that represents a horizontal bar that
+// is filled in progressively over time as a process completes.
+type ProgressBar struct {
+	c	*C.uiControl
+	p	*C.uiProgressBar
+}
+
+// NewProgressBar creates a new ProgressBar.
+func NewProgressBar() *ProgressBar {
+	p := new(ProgressBar)
+
+	p.p = C.uiNewProgressBar()
+	p.c = (*C.uiControl)(unsafe.Pointer(p.p))
+
+	return p
+}
+
+// Destroy destroys the ProgressBar.
+func (p *ProgressBar) Destroy() {
+	C.uiControlDestroy(p.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 (p *ProgressBar) LibuiControl() uintptr {
+	return uintptr(unsafe.Pointer(p.c))
+}
+
+// Handle returns the OS-level handle associated with this ProgressBar.
+// On Windows this is an HWND of a standard Windows API
+// PROGRESS_CLASS class (as provided by Common Controls
+// version 6).
+// On GTK+ this is a pointer to a GtkProgressBar.
+// On OS X this is a pointer to a NSProgressIndicator.
+func (p *ProgressBar) Handle() uintptr {
+	return uintptr(C.uiControlHandle(p.c))
+}
+
+// Show shows the ProgressBar.
+func (p *ProgressBar) Show() {
+	C.uiControlShow(p.c)
+}
+
+// Hide hides the ProgressBar.
+func (p *ProgressBar) Hide() {
+	C.uiControlHide(p.c)
+}
+
+// Enable enables the ProgressBar.
+func (p *ProgressBar) Enable() {
+	C.uiControlEnable(p.c)
+}
+
+// Disable disables the ProgressBar.
+func (p *ProgressBar) Disable() {
+	C.uiControlDisable(p.c)
+}
+
+// TODO Value
+
+// SetValue sets the ProgressBar's currently displayed percentage
+// to value. value must be between 0 and 100 inclusive.
+func (p *ProgressBar) SetValue(value int) {
+	C.uiProgressBarSetValue(p.p, C.int(value))
+}