Added the beginning of the Mac OS X Area implementation. Also fixed the long-broken Mac OS X build.

1 files changed, 65 insertions, 0 deletions

diff --git a/area_darwin.go b/area_darwin.go
new file mode 100644
index 0000000..4f27554
--- /dev/null
+++ b/area_darwin.go
@@ -0,0 +1,65 @@
+// 29 march 2014
+
+package ui
+
+import (
+	"fmt"
+	"unsafe"
+)
+
+// #cgo LDFLAGS: -lobjc -framework Foundation -framework AppKit
+// #include <stdlib.h>
+//// #include <HIToolbox/Events.h>
+// #include "objc_darwin.h"
+// extern void areaView_drawRect(id, struct xrect);
+import "C"
+
+const (
+	_goArea = "goArea"
+)
+
+var (
+	_drawRect = sel_getUid("drawRect:")
+)
+
+func mkAreaClass() error {
+	areaclass, err := makeAreaClass(_goArea)
+	if err != nil {
+		return fmt.Errorf("error creating Area backend class: %v", err)
+	}
+//	// TODO rename this function (it overrides anyway)
+	// addAreaViewDrawMethod() is in bleh_darwin.m
+	ok := C.addAreaViewDrawMethod(areaclass)
+	if ok != C.BOOL(C.YES) {
+		return fmt.Errorf("error overriding Area drawRect: method; reason unknown")
+	}
+	return nil
+}
+
+//export areaView_drawRect
+func areaView_drawRect(self C.id, rect C.struct_xrect) {
+	// TODO
+}
+
+// TODO combine the below with the delegate stuff
+
+var (
+	_NSView = objc_getClass("NSView")
+	_NSView_Class = C.object_getClass(_NSView)
+)
+
+func makeAreaClass(name string) (C.Class, error) {
+	cname := C.CString(name)
+	defer C.free(unsafe.Pointer(cname))
+
+	c := C.objc_allocateClassPair(_NSView_Class, cname, 0)
+	if c == C.NilClass {
+		return C.NilClass, fmt.Errorf("unable to create Objective-C class %s for Area; reason unknown", name)
+	}
+	C.objc_registerClassPair(c)
+	return c, nil
+}
+
+var (
+	// delegate_rect in bleh_darwin.m
+)