/** Paints the <tt>visualEdge</tt>. No arrowhead is drawn. */
public void paint(VisualGraphComponent component, Graphics2D g2d) {
VisualEdge vEdge = (VisualEdge) component;
Rectangle fromvertexBounds;
Rectangle tovertexBounds;
GeneralPath drawPath;
VisualVertex visualVertexA = vEdge.getVisualVertexA();
VisualVertex visualVertexB = vEdge.getVisualVertexB();
GraphLayoutManager layoutmanager = vEdge.getVisualGraph().getGraphLayoutManager();
drawPath = vEdge.getGeneralPath();
// If there is no layoutmanager or there is one but the layout has not
// been initialised, by default, let us route edges as straight lines.
if (layoutmanager == null || (layoutmanager != null && !layoutmanager.isInitialized())) {
fromvertexBounds = visualVertexA.getBounds();
tovertexBounds = visualVertexB.getBounds();
// Make sure to clear the GeneralPath() first. Otherwise, the edge's previous
// path will be redrawn as well.
drawPath.reset();
// Start the line from the center of the vEdgertex
drawPath.moveTo((float) fromvertexBounds.getCenterX(), (float) fromvertexBounds.getCenterY());
drawPath.lineTo((float) tovertexBounds.getCenterX(), (float) tovertexBounds.getCenterY());
} else {
// Let the layout manager determine how the edge will be routed.
layoutmanager.routeEdge(g2d, vEdge);
}
// Draw the line
g2d.setColor(vEdge.getOutlinecolor());
g2d.draw(drawPath);
// Draw the edge label
this.paintText(vEdge, g2d);
}
/** Paints the text of the <tt>VisualEdge</tt>. */
public void paintText(Graphics2D g2d, Font font, Color fontColor, String text, float x, float y) {
g2d.setFont(font);
g2d.setColor(fontColor);
g2d.drawString(text, x, y);
}