Migrated everything else to Objective-C native; fixed a few things I missed along the way.

area_darwin.go

@@ -40,7 +40,7 @@ func areaView_drawRect(self C.id, rect C.struct_xrect) {
 	// rectangles in Cocoa are origin/size, not point0/point1; if we don't watch for this, weird things will happen when scrolling
 	// TODO change names EVERYWHERE ELSE to match
 	cliprect := image.Rect(int(rect.x), int(rect.y), int(rect.x + rect.width), int(rect.y + rect.height))
-	max := C.objc_msgSend_stret_rect_noargs(self, _frame)
+	max := C.frame(self)
 	cliprect = image.Rect(0, 0, int(max.width), int(max.height)).Intersect(cliprect)
 	if cliprect.Empty() {			// no intersection; nothing to paint
 		return
@@ -97,7 +97,7 @@ func areaMouseEvent(self C.id, e C.id, click bool, up bool) {
 	xp := C.getTranslatedEventPoint(self, e)
 	me.Pos = image.Pt(int(xp.x), int(xp.y))
 	// for the most part, Cocoa won't geenerate an event outside the Area... except when dragging outside the Area, so check for this
-	max := C.objc_msgSend_stret_rect_noargs(self, _frame)
+	max := C.frame(self)
 	if !me.Pos.In(image.Rect(0, 0, int(max.width), int(max.height))) {
 		return
 	}
@@ -112,7 +112,7 @@ func areaMouseEvent(self C.id, e C.id, click bool, up bool) {
 		me.Up = which
 	} else if click {
 		me.Down = which
-		me.Count = uint(C.objc_msgSend_intret_noargs(e, _clickCount))
+		me.Count = uint(C.clickCount(e))
 	} else {
 		which = 0			// reset for Held processing below
 	}
@@ -136,7 +136,7 @@ func areaMouseEvent(self C.id, e C.id, click bool, up bool) {
 	}
 	repaint := s.handler.Mouse(me)
 	if repaint {
-		C.objc_msgSend_noargs(self, _display)
+		C.display(self)
 	}
 }
 
@@ -165,7 +165,7 @@ func sendKeyEvent(self C.id, e C.id, ke KeyEvent) bool {
 	s := getSysData(self)
 	handled, repaint := s.handler.Key(ke)
 	if repaint {
-		C.objc_msgSend_noargs(self, _display)
+		C.display(self)
 	}
 	return handled
 }

area_darwin.h

@@ -4,5 +4,6 @@ extern id makeArea(void);
 extern uintptr_t modifierFlags(id);
 extern struct xpoint getTranslatedEventPoint(id, id);
 extern intptr_t buttonNumber(id);
+extern intptr_t clickCount(id);
 extern uintptr_t pressedMouseButtons(void);
 extern uintptr_t keyCode(id);

area_darwin.m

@@ -112,6 +112,11 @@ intptr_t buttonNumber(id e)
 	return fromNSInteger([toNSEvent(e) buttonNumber]);
 }
 
+intptr_t clickCount(id e)
+{
+	return fromNSInteger([toNSEvent(e) clickCount]);
+}
+
 uintptr_t pressedMouseButtons(void)
 {
 	return fromNSUInteger([NSEvent pressedMouseButtons]);

delegate_darwin.go

@@ -49,10 +49,10 @@ var (
 func appDelegate_windowDidResize(win C.id) {
 	s := getSysData(win)
 	wincv := C.windowGetContentView(win)		// we want the content view's size, not the window's
-	r := C.objc_msgSend_stret_rect_noargs(wincv, _frame)
+	r := C.frame(wincv)
 	// winheight is used here because (0,0) is the bottom-left corner, not the top-left corner
 	s.doResize(0, 0, int(r.width), int(r.height), int(r.height))
-	C.objc_msgSend_noargs(win, _display)		// redraw everything; TODO only if resize() was called?
+	C.display(win)			// redraw everything; TODO only if resize() was called?
 }
 
 //export appDelegate_buttonClicked

listbox_darwin.go

@@ -182,7 +182,7 @@ func newListboxScrollView(listbox C.id) C.id {
 	)
 
 	scrollview := newScrollView(listbox)
-	C.objc_msgSend_uint(scrollview, _setBorderType, _NSBezelBorder)		// this is what Interface Builder gives the scroll view
+	C.giveScrollViewBezelBorder(scrollview)		// this is what Interface Builder gives the scroll view
 	return scrollview
 }
 

objc_darwin.go

@@ -43,14 +43,11 @@ func toNSString(str string) C.id {
 	cstr := C.CString(str)
 	defer C.free(unsafe.Pointer(cstr))
 
-	return C.objc_msgSend_str(_NSString,
-		_stringWithUTF8String,
-		cstr)
+	return C.toNSString(cstr)
 }
 
 func fromNSString(str C.id) string {
-	cstr := C.objc_msgSend_noargs(str, _UTF8String)
-	return C.GoString((*C.char)(unsafe.Pointer(cstr)))
+	return C.GoString(C.fromNSString(str))
 }
 
 // These consolidate the NSScrollView code (used by listbox_darwin.go and area_darwin.go) into a single place.
@@ -66,15 +63,9 @@ var (
 )
 
 func newScrollView(content C.id) C.id {
-	scrollview := C.objc_msgSend_noargs(_NSScrollView, _alloc)
-	scrollview = initWithDummyFrame(scrollview)
-	C.objc_msgSend_bool(scrollview, _setHasHorizontalScroller, C.BOOL(C.YES))
-	C.objc_msgSend_bool(scrollview, _setHasVerticalScroller, C.BOOL(C.YES))
-	C.objc_msgSend_bool(scrollview, _setAutohidesScrollers, C.BOOL(C.YES))
-	C.objc_msgSend_id(scrollview, _setDocumentView, content)
-	return scrollview
+	return C.makeScrollView(content)
 }
 
 func getScrollViewContent(scrollview C.id) C.id {
-	return C.objc_msgSend_noargs(scrollview, _documentView)
+	return C.scrollViewContent(scrollview)
 }

objc_darwin.h

@@ -20,6 +20,18 @@ The format should be self-explanatory.
 
 #include <stdint.h>
 
+struct xrect;		// TODO move that up here when finally getting rid of bleh_darwin.m
+
+extern id toNSString(char *);
+extern char *fromNSString(id);
+extern void display(id);
+extern struct xrect frame(id);
+extern id makeScrollView(id);
+extern void giveScrollViewBezelBorder(id);
+extern id scrollViewContent(id);
+
+// BEGIN OLD CODE
+
 static inline id objc_msgSend_noargs(id obj, SEL sel)
 {
 	return objc_msgSend(obj, sel);

sysdata_darwin.go

@@ -91,7 +91,6 @@ var (
 	_deselectItemAtIndex = sel_getUid("deselectItemAtIndex:")
 )
 
-// because the only way to make a new NSControl/NSView is with a frame (it gets overridden later)
 func initWithDummyFrame(self C.id) C.id {
 	return C.objc_msgSend_rect(self, _initWithFrame,
 		C.int64_t(0), C.int64_t(0), C.int64_t(100), C.int64_t(100))

sysdata_darwin.m

@@ -14,6 +14,7 @@
 #include <AppKit/NSProgressIndicator.h>
 #include <AppKit/NSScrollView.h>
 
+// because the only way to make a new NSControl/NSView is with a frame (it gets overridden later)
 static NSRect dummyRect;// = NSMakeRect(0, 0, 100, 100);
 
 #define to(T, x) ((T *) (x))