Fixed most compilation errors and added GTK+ string helper functions to common_unix.go.

redo/common_unix.go

@@ -0,0 +1,22 @@
+// 7 july 2014
+
+package ui
+
+import (
+	"unsafe"
+)
+
+// #include "gtk_unix.h"
+import "C"
+
+func fromgstr(s *C.gchar) string {
+	return C.GoString((*C.char)(unsafe.Pointer(s)))
+}
+
+func togstr(s string) *C.gchar {
+	return (*C.gchar)(unsafe.Pointer(C.CString(s)))
+}
+
+func freegstr(s *C.gchar) {
+	C.free(unsafe.Pointer(s))
+}

redo/controls.go

@@ -32,6 +32,7 @@ func NewButton(text string) *Request {
 // Example:
 // 	b := ui.GetNewButton(ui.Do, "OK")
 func GetNewButton(c Doer, text string) Button {
-	c <- newButton(text)
-	return (<-c.resp).(Button)
+	req := newButton(text)
+	c <- req
+	return (<-req.resp).(Button)
 }

redo/controls_unix.go

@@ -13,8 +13,8 @@ type widgetbase struct {
 	widget	*C.GtkWidget
 }
 
-func newWidget(w *C.GtkWidget) *widget {
-	return &widget{
+func newWidget(w *C.GtkWidget) *widgetbase {
+	return &widgetbase{
 		widget:	w,
 	}
 }
@@ -32,7 +32,7 @@ func newButton(text string) *Request {
 			defer freegstr(ctext)
 			widget := C.gtk_button_new_with_label(ctext)
 			c <- &button{
-				widget:	newWidget(widget),
+				widgetbase:	newWidget(widget),
 				button:		(*C.GtkButton)(unsafe.Pointer(widget)),
 			}
 		},
@@ -40,7 +40,7 @@ func newButton(text string) *Request {
 	}
 }
 
-func (b *Button) OnClicked(func e(c Doer)) *Request {
+func (b *button) OnClicked(e func(c Doer)) *Request {
 	// TODO
 	return nil
 }

redo/uitask_unix.go

@@ -12,8 +12,8 @@ import (
 import "C"
 
 func uiinit() error {
-	// TODO replace with the eerror-checking version
-	C.gtk_init()
+	// TODO replace with the error-checking version
+	C.gtk_init(nil, nil)
 	return nil
 }
 
@@ -29,6 +29,6 @@ func issue(req *Request) {
 func doissue(data C.gpointer) C.gboolean {
 	req := (*Request)(unsafe.Pointer(data))
 	req.op()
-	close(req.done)
+	close(req.resp)
 	return C.FALSE		// don't repeat
 }

redo/window.go

@@ -41,6 +41,7 @@ func NewWindow(title string, width int, height int) *Request {
 // Example:
 // 	w := ui.GetNewWindow(ui.Do, "Main Window")
 func GetNewWindow(c Doer, title string, width int, height int) Window {
-	c <- newWindow(title, width, height)
-	return (<-c.resp).(Window)
+	req := newWindow(title, width, height)
+	c <- req
+	return (<-req.resp).(Window)
 }

redo/window_unix.go

@@ -21,15 +21,15 @@ func newWindow(title string, width int, height int) *Request {
 	return &Request{
 		op:		func() {
 			widget := C.gtk_window_new(C.GTK_WINDOW_TOPLEVEL)
-			ctext := togstr(text)
-			defer freegstr(ctext)
+			ctitle := togstr(title)
+			defer freegstr(ctitle)
 			w := &window{
 				widget:		widget,
 				container:		(*C.GtkContainer)(unsafe.Pointer(widget)),
 				bin:			(*C.GtkBin)(unsafe.Pointer(widget)),
 				window:		(*C.GtkWindow)(unsafe.Pointer(widget)),
 			}
-			C.gtk_window_set_title(w.window, ctext)
+			C.gtk_window_set_title(w.window, ctitle)
 			// TODO size
 			// TODO content
 			c <- w
@@ -38,7 +38,7 @@ func newWindow(title string, width int, height int) *Request {
 	}
 }
 
-func (w *window) SetControl(c Control) *Request {
+func (w *window) SetControl(control Control) *Request {
 	c := make(chan interface{})
 	return &Request{
 		op:		func() {
@@ -46,7 +46,7 @@ func (w *window) SetControl(c Control) *Request {
 			// TODO reparent
 			c <- struct{}{}
 		},
-		done:	c,
+		resp:		c,
 	}
 }
 
@@ -64,9 +64,9 @@ func (w *window) SetTitle(title string) *Request {
 	c := make(chan interface{})
 	return &Request{
 		op:		func() {
-			ctext := togstr(text)
-			defer freegstr(ctext)
-			C.gtk_window_set_title(w.window, ctext)
+			ctitle := togstr(title)
+			defer freegstr(ctitle)
+			C.gtk_window_set_title(w.window, ctitle)
 			c <- struct{}{}
 		},
 		resp:		c,
@@ -107,7 +107,7 @@ func (w *window) Close() *Request {
 	}
 }
 
-func (w *window) OnClosing(func e(c Doer) bool) *Request {
+func (w *window) OnClosing(e func(c Doer) bool) *Request {
 	// TODO
 	return nil
 }