X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/puzzles/blobdiff_plain/1e3e152de7cc491b63c5e351b5f603d307182b07..f467efadd6d03a2b7d3a7dfcd9ffa4a6eb144c5a:/osx.m

diff --git a/osx.m b/osx.m
index 7b6789d..bc87021 100644
--- a/osx.m
+++ b/osx.m
@@ -1172,6 +1172,26 @@ void draw_polygon(frontend *fe, int *coords, int npoints,
     else
 	[path stroke];
 }
+void draw_circle(frontend *fe, int cx, int cy, int radius,
+                 int fill, int colour)
+{
+    NSBezierPath *path = [NSBezierPath bezierPath];
+
+    [[NSGraphicsContext currentContext] setShouldAntialias:YES];
+
+    assert(colour >= 0 && colour < fe->ncolours);
+    [fe->colours[colour] set];
+
+    [path appendBezierPathWithArcWithCenter:NSMakePoint(cx + 0.5, cy + 0.5)
+        radius:radius startAngle:0.0 endAngle:360.0];
+
+    [path closePath];
+
+    if (fill)
+	[path fill];
+    else
+	[path stroke];
+}
 void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour)
 {
     NSBezierPath *path = [NSBezierPath bezierPath];
@@ -1232,6 +1252,48 @@ void draw_text(frontend *fe, int x, int y, int fonttype, int fontsize,
 
     [string drawAtPoint:point withAttributes:attr];
 }
+struct blitter {
+    int w, h;
+    int x, y;
+    NSImage *img;
+};
+blitter *blitter_new(int w, int h)
+{
+    blitter *bl = snew(blitter);
+    bl->x = bl->y = -1;
+    bl->w = w;
+    bl->h = h;
+    bl->img = [[NSImage alloc] initWithSize:NSMakeSize(w, h)];
+    [bl->img setFlipped:YES];
+    return bl;
+}
+void blitter_free(blitter *bl)
+{
+    [bl->img release];
+    sfree(bl);
+}
+void blitter_save(frontend *fe, blitter *bl, int x, int y)
+{
+    [fe->image unlockFocus];
+    [bl->img lockFocus];
+    [fe->image drawInRect:NSMakeRect(0, 0, bl->w, bl->h)
+	fromRect:NSMakeRect(x, y, bl->w, bl->h)
+	operation:NSCompositeCopy fraction:1.0];
+    [bl->img unlockFocus];
+    [fe->image lockFocus];
+    bl->x = x;
+    bl->y = y;
+}
+void blitter_load(frontend *fe, blitter *bl, int x, int y)
+{
+    if (x == BLITTER_FROMSAVED && y == BLITTER_FROMSAVED) {
+        x = bl->x;
+        y = bl->y;
+    }
+    [bl->img drawInRect:NSMakeRect(x, y, bl->w, bl->h)
+	fromRect:NSMakeRect(0, 0, bl->w, bl->h)
+	operation:NSCompositeCopy fraction:1.0];
+}
 void draw_update(frontend *fe, int x, int y, int w, int h)
 {
     [fe->view setNeedsDisplayInRect:NSMakeRect(x,y,w,h)];