1 files changed, 59 insertions, 0 deletions
diff --git a/source/com/c2kernel/graph/view/DefaultVertexRenderer.java b/source/com/c2kernel/graph/view/DefaultVertexRenderer.java
new file mode 100755
index 0000000..6f57185
--- /dev/null
+++ b/source/com/c2kernel/graph/view/DefaultVertexRenderer.java
@@ -0,0 +1,59 @@
+package com.c2kernel.graph.view;
+
+import java.awt.FontMetrics;
+import java.awt.Graphics2D;
+import java.awt.Paint;
+import java.awt.Polygon;
+
+import com.c2kernel.graph.model.GraphPoint;
+import com.c2kernel.graph.model.Vertex;
+
+
+public class DefaultVertexRenderer implements VertexRenderer
+{
+    private Paint mLinePaint = null;
+    private Paint mTextPaint = null;
+    private Paint mFillPaint = null;
+
+
+    public DefaultVertexRenderer(Paint linePaint, Paint textPaint, Paint fillPaint)
+    {
+        mLinePaint = linePaint;
+        mTextPaint = textPaint;
+        mFillPaint = fillPaint;
+    }
+
+
+    public void draw(Graphics2D g2d, Vertex vertex)
+    {
+        GraphPoint[]    outlinePoints = vertex.getOutlinePoints();
+        GraphPoint      centrePoint   = vertex.getCentrePoint();
+        Polygon         outline       = new Polygon();
+
+        String          vertexName    = vertex.getName();
+        FontMetrics     metrics       = g2d.getFontMetrics();
+        int             textWidth     = metrics.stringWidth(vertexName);
+        int             textHeight    = metrics.getHeight();
+        int             textX         = centrePoint.x - textWidth/2;
+        int             textY         = centrePoint.y + textHeight/3;
+
+        int             i             = 0;
+
+
+        // Construct a shape in the outline of the vertex
+        for(i=0; i<outlinePoints.length; i++)
+        {
+            outline.addPoint(outlinePoints[i].x, outlinePoints[i].y);
+        }
+
+        // Fill and then draw the outline
+        g2d.setPaint(mFillPaint);
+        g2d.fill(outline);
+        g2d.setPaint(mLinePaint);
+        g2d.draw(outline);
+
+        // Write the name of the vertex in the centre of the outline
+        g2d.setPaint(mTextPaint);
+        g2d.drawString(vertexName, textX, textY);
+    }
+}