# HG changeset patch
# User bsmith@81767d24-ef19-dc11-ae90-00e081727c95
# Date 1325351091 0
# Node ID 026c0b4d6ee93167da63e8f33ca3aa8cc70a9669
# Parent  c98b2ce2d5b2e3dc648237a63fbebc84014dbfff
Initial implmentation of DW_DRAW_NOAA on Mac... only works on pixmaps right now.

diff -r c98b2ce2d5b2 -r 026c0b4d6ee9 dw.h
--- a/dw.h	Fri Dec 30 21:30:24 2011 +0000
+++ b/dw.h	Sat Dec 31 17:04:51 2011 +0000
@@ -1402,11 +1402,11 @@
 #define DW_HTML_STOP       5
 #define DW_HTML_PRINT      6
 
-/* Drawing flags... used for Arc currently */
+/* Drawing flags  */
 #define DW_DRAW_DEFAULT    0
 #define DW_DRAW_FILL       1
 #define DW_DRAW_FULL       (1 << 1)
-
+#define DW_DRAW_NOAA       (1 << 2)
 
 /* Macro for casting resource IDs to HICN */
 #define DW_RESOURCE(a) (a < 65536 ? (HICN)a : (HICN)0)
diff -r c98b2ce2d5b2 -r 026c0b4d6ee9 mac/dw.m
--- a/mac/dw.m	Fri Dec 30 21:30:24 2011 +0000
+++ b/mac/dw.m	Sat Dec 31 17:04:51 2011 +0000
@@ -5267,6 +5267,18 @@
     }
 }
 
+/* Internal function to create an image graphics context...
+ * with or without antialiasing enabled.
+ */
+id _create_gc(id image, bool antialiased)
+{
+    CGContextRef  context = (CGContextRef)[[NSGraphicsContext graphicsContextWithBitmapImageRep:image] graphicsPort];
+    NSGraphicsContext *gc = [NSGraphicsContext graphicsContextWithGraphicsPort:context flipped:YES];
+    [gc setShouldAntialias:antialiased];
+    CGContextSetAllowsAntialiasing(context, antialiased);
+    return gc;
+}
+
 /* Draw a polygon on a window (preferably a render window).
  * Parameters:
  *       handle: Handle to the window.
@@ -5286,9 +5298,9 @@
     if(pixmap)
     {
         image = (id)pixmap->image;
+        id gc = _create_gc(image, flags & DW_DRAW_NOAA ? NO : YES);
         [NSGraphicsContext saveGraphicsState];
-        [NSGraphicsContext setCurrentContext:[NSGraphicsContext
-                                              graphicsContextWithGraphicsPort:[[NSGraphicsContext graphicsContextWithBitmapImageRep:image] graphicsPort] flipped:YES]];
+        [NSGraphicsContext setCurrentContext:gc];
     }
     else
     {
@@ -5344,9 +5356,9 @@
     if(pixmap)
     {
         image = (id)pixmap->image;
+        id gc = _create_gc(image, flags & DW_DRAW_NOAA ? NO : YES);
         [NSGraphicsContext saveGraphicsState];
-        [NSGraphicsContext setCurrentContext:[NSGraphicsContext
-                                              graphicsContextWithGraphicsPort:[[NSGraphicsContext graphicsContextWithBitmapImageRep:image] graphicsPort] flipped:YES]];
+        [NSGraphicsContext setCurrentContext:gc];
     }
     else
     {
@@ -5404,9 +5416,9 @@
     if(pixmap)
     {
         image = (id)pixmap->image;
+        id gc = _create_gc(image, flags & DW_DRAW_NOAA ? NO : YES);
         [NSGraphicsContext saveGraphicsState];
-        [NSGraphicsContext setCurrentContext:[NSGraphicsContext
-                                              graphicsContextWithGraphicsPort:[[NSGraphicsContext graphicsContextWithBitmapImageRep:image] graphicsPort] flipped:YES]];
+        [NSGraphicsContext setCurrentContext:gc];
     }
     else
     {
diff -r c98b2ce2d5b2 -r 026c0b4d6ee9 readme
--- a/readme	Fri Dec 30 21:30:24 2011 +0000
+++ b/readme	Sat Dec 31 17:04:51 2011 +0000
@@ -50,6 +50,8 @@
    Several types of widgets have this set by default now.
 Added faster and less buggy layout engine 2.0 for OS/2, Windows and Mac.
 Added auto-positioning on Mac; reimplemented auto-positioning on OS/2.
+Added DW_DRAW_NOAA which can be passed to dw_draw_*() API functions
+   that accept the flags parameter to disable anti-aliasing.
 Fixed auto-sizing top-level windows on Windows; added on OS/2 and Mac.
 Fixed bubble help not being displayed on Windows.
 Fixed menu bar items remaining highlighted on Mac.