--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doodle/tk/renderer.d	Mon Aug 16 17:23:09 2010 +0930
@@ -0,0 +1,47 @@
+module doodle.tk.renderer;
+
+public {
+    import doodle.tk.geometry;
+    import doodle.tk.color;
+}
+
+interface Renderer {
+    enum LineStyle {
+        SOLID,
+        DASHED,
+        DOTTED
+    }
+
+    enum FontFace {
+        NORMAL
+    }
+
+    // Low-level state manipulation
+
+    void setLineStyle(LineStyle style);
+    void setLineWidth(in double width);
+    void setColor(in Color color);
+
+    void translate(in Point p);
+    void scale(in double s);
+
+    void pushState();           // Copies all of current state
+    void popState();            // Restores all of previous state
+
+    // High-level drawing routines
+
+    void drawRectangle(in Rectangle rectangle, bool fill);
+    void drawEllipse(in Rectangle rectangle, bool fill);
+    void drawSegment(in Segment segment);
+    void drawHLine(in double y, in double x0, in double x1);
+    void drawVLine(in double x, in double y0, in double y1);
+    void drawPoly(in Point[] points, bool fill);
+
+    // Text routines
+
+    void setFontFace(in FontFace face);
+    void setFontSize(in double size);
+    void drawText(in string text);
+
+    void measureText(in string text, out Rectangle logicalBounds, out Rectangle totalBounds) const;
+}