20060303a

1 files changed, 26 insertions, 0 deletions

diff --git a/libdraw/border.c b/libdraw/border.c
new file mode 100644
index 00000000..a75be159
--- /dev/null
+++ b/libdraw/border.c
@@ -0,0 +1,26 @@
+#include "lib9.h"
+#include "draw.h"
+
+void
+borderop(Image *im, Rectangle r, int i, Image *color, Point sp, Drawop op)
+{
+	if(i < 0){
+		r = insetrect(r, i);
+		sp = addpt(sp, Pt(i,i));
+		i = -i;
+	}
+	drawop(im, Rect(r.min.x, r.min.y, r.max.x, r.min.y+i),
+		color, nil, sp, op);
+	drawop(im, Rect(r.min.x, r.max.y-i, r.max.x, r.max.y),
+		color, nil, Pt(sp.x, sp.y+Dy(r)-i), op);
+	drawop(im, Rect(r.min.x, r.min.y+i, r.min.x+i, r.max.y-i),
+		color, nil, Pt(sp.x, sp.y+i), op);
+	drawop(im, Rect(r.max.x-i, r.min.y+i, r.max.x, r.max.y-i),
+		color, nil, Pt(sp.x+Dx(r)-i, sp.y+i), op);
+}
+
+void
+border(Image *im, Rectangle r, int i, Image *color, Point sp)
+{
+	borderop(im, r, i, color, sp, SoverD);
+}