diff -r f190d03dce0f -r ce342364fad5 ui/cocoa/graphics.m
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/cocoa/graphics.m	Wed Jul 13 16:40:59 2016 +0200
@@ -0,0 +1,124 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2014 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#import <stdio.h>
+#import <stdlib.h>
+#import <string.h>
+
+#import "graphics.h"
+#import "container.h"
+#import "../common/context.h"
+
+
+
+@implementation UiCanvas
+
+- (UiObject*) object {
+    return object;
+}
+
+- (void) setObject:(void*)obj {
+    object = obj;
+}
+
+- (void*) userdata {
+    return userdata;
+}
+
+- (void) setUserdata:(void*)d {
+    userdata = d;
+}
+
+- (ui_drawfunc) callback {
+    return callback;
+}
+- (void) setCallback: (ui_drawfunc)f {
+    callback = f;
+}
+
+- (void) drawRect:(NSRect)rect {
+    UiGraphics g;
+    NSRect bounds = [self bounds];
+    g.width = bounds.size.width;
+    g.height = bounds.size.height;
+    
+    UiEvent ev;
+    ev.obj = object;
+    ev.window = object->window;
+    ev.document = object->ctx->document;
+    
+    callback(&ev, &g, userdata);
+}
+
+@end
+
+
+UIWIDGET ui_drawingarea(UiObject *obj, ui_drawfunc f, void *userdata) {
+    UiContainer *ct = uic_get_current_container(obj);
+    
+    NSRect frame = ct->getframe(ct);
+    
+    UiCanvas *canvas = [[UiCanvas alloc]initWithFrame:frame];
+    [canvas setObject: obj];
+    [canvas setCallback: f];
+    [canvas setUserdata: userdata];
+    ct->add(ct, canvas);
+    
+    return canvas;
+}
+
+
+// drawing functions
+void ui_graphics_color(UiGraphics *gr, int red, int green, int blue) {
+    float r = ((float)red) / 255.f;
+    float g = ((float)green) / 255.f;
+    float b = ((float)blue) / 255.f;
+    
+    NSColor *color = [NSColor colorWithCalibratedRed:r green:g blue:b alpha:1];
+    [color set];
+}
+
+void ui_draw_rect(UiGraphics *g, int x, int y, int w, int h, int fill) {
+    // translate y
+    y = g->height - y - h;
+    
+    NSRect bounds;
+    bounds.origin.x = x;
+    bounds.origin.y = y;
+    bounds.size.width = w;
+    bounds.size.height = h;
+    
+    if(fill) {
+        NSRectFill(bounds);
+    } else {
+        NSFrameRect(bounds);
+    }
+}
+
+
+