1 files changed, 75 insertions, 0 deletions
diff --git a/prevlib/objc_darwin.m b/prevlib/objc_darwin.m
new file mode 100644
index 0000000..c2d3d6f
--- /dev/null
+++ b/prevlib/objc_darwin.m
@@ -0,0 +1,75 @@
+// 15 may 2014
+
+#include "objc_darwin.h"
+#import <Foundation/NSString.h>
+#import <AppKit/NSView.h>
+#import <AppKit/NSScrollView.h>
+
+#define to(T, x) ((T *) (x))
+#define _toNSString(x) to(NSString, (x))
+#define toNSView(x) to(NSView, (x))
+#define toNSScrollView(x) to(NSScrollView, (x))
+
+// because the only way to make a new NSControl/NSView is with a frame (it gets overridden later)
+NSRect dummyRect;
+
+// this can be called before our NSApp is created, so keep a pool to keep 10.6 happy
+id toNSString(char *str)
+{
+	NSAutoreleasePool *pool;
+	NSString *s;
+
+	pool = [NSAutoreleasePool new];
+	s = [NSString stringWithUTF8String:str];
+	[s retain];		// keep alive after releasing the pool
+	[pool release];
+	return s;
+}
+
+char *fromNSString(id str)
+{
+	return [_toNSString(str) UTF8String];
+}
+
+void display(id view)
+{
+	[toNSView(view) display];
+}
+
+struct xrect frame(id view)
+{
+	NSRect r;
+	struct xrect s;
+
+	r = [toNSView(view) frame];
+	s.x = (intptr_t) r.origin.x;
+	s.y = (intptr_t) r.origin.y;
+	s.width = (intptr_t) r.size.width;
+	s.height = (intptr_t) r.size.height;
+	return s;
+}
+
+id makeScrollView(id content)
+{
+	NSScrollView *scrollview;
+
+	scrollview = [[NSScrollView alloc]
+		initWithFrame:dummyRect];
+	[scrollview setHasHorizontalScroller:YES];
+	[scrollview setHasVerticalScroller:YES];
+	[scrollview setAutohidesScrollers:YES];
+	// Interface Builder sets this for NSTableViews; we also want this on Areas
+	[scrollview setDrawsBackground:YES];
+	[scrollview setDocumentView:toNSView(content)];
+	return scrollview;
+}
+
+void giveScrollViewBezelBorder(id scrollview)
+{
+	[toNSScrollView(scrollview) setBorderType:NSBezelBorder];
+}
+
+id scrollViewContent(id scrollview)
+{
+	return [toNSScrollView(scrollview) documentView];
+}