Interface GraphNodeRenderer

All Known Implementing Classes:

DefaultGraphNodeRenderer

public interface GraphNodeRenderer

Paints a node. DefaultGraphNodeRenderer paints a card with a title, a description and the ports; implement this, or extend that, for nodes of your own design.

A renderer draws in screen pixels; the rectangle is the node's world rectangle at the current zoom. Below NodeGraph.getDetailZoom a renderer should draw no text, which would be unreadable and costs most of a frame in a large graph.

Method Summary

Modifier and Type	Method	Description
void	paintNode(Graphics g, NodeGraph graph, GraphNode node, int x, int y, int w, int h, boolean selected)	Paints node into the rectangle.

Method Details

paintNode

void paintNode(Graphics g,
 NodeGraph graph,
 GraphNode node,
 int x,
 int y,
 int w,
 int h,
 boolean selected)

Paints node into the rectangle.

Parameters

• g: the graphics, with the colour and alpha the renderer may change
• graph: the component, for its zoom and its port geometry
• node: the node
• x, y, w, h: the node on screen
• selected: true when the node is in the selection