Minor drawing fixess

canvas/canvas.go

@@ -97,7 +97,7 @@ func (this *pen) Path (points ...image.Point) {
 		if this.fill.A > 0 {
 			this.fillPolygon(this.fill, points...)
 		}
-	} else if this.closed {
+	} else if this.closed && len(points) > 2 {
 		if this.stroke.A > 0 {
 			this.strokePolygon(this.stroke, points...)
 		}

canvas/line.go

@@ -3,6 +3,7 @@ package xcanvas
 import "image"
 import "github.com/jezek/xgbutil/xgraphics"
 
+// TODO: clip the line to the bounds
 func (this *pen) line  (
 	c      xgraphics.BGRA,
 	min    image.Point,
@@ -17,11 +18,11 @@ func (this *pen) line  (
 		min: min,
 		max: max,
 	}
-	
+
 	if abs(max.Y - min.Y) < abs(max.X - min.X) {
 		if max.X < min.X { context.swap() }
 		context.lineLow()
-		
+
 	} else {
 		if max.Y < min.Y { context.swap() }
 		context.lineHigh()