/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.airavata.xbaya.ui.graph;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Stroke;
import java.awt.event.MouseEvent;
import java.awt.geom.CubicCurve2D;
import org.apache.airavata.workflow.model.graph.ControlEdge;
import org.apache.airavata.workflow.model.graph.Edge;
import org.apache.airavata.workflow.model.graph.Port;
import org.apache.airavata.xbaya.XBayaEngine;
import org.apache.airavata.xbaya.graph.controller.NodeController;
import org.apache.airavata.xbaya.ui.utils.DrawUtils;
public class EdgeGUI implements GraphPieceGUI {
/**
* CONTROL_EDGE_STROKE
*/
public static final Stroke CONTROL_EDGE_STROKE = new BasicStroke(1.0f, BasicStroke.CAP_SQUARE,
BasicStroke.JOIN_MITER, 10.0f, new float[] { 5.0f }, 0.0f);
public static final Stroke STREAM_EDGE_STROKE = new BasicStroke(4.0f, BasicStroke.CAP_SQUARE,
BasicStroke.JOIN_MITER, 10.0f, new float[] { 5.0f }, 0.0f);
private static final Color lineColor = Color.black;
private static final Color pointColor = Color.pink;
private static final Color selectedPointColor = Color.red;
private static final int POINT_SIZE = 8;
private Edge edge;
private boolean selected = false;
private static Color STREAM_EDGE_COLOR = new Color(51, 255, 204);
/**
* @param edge
*
*/
public EdgeGUI(Edge edge) {
this.edge = edge;
}
/**
* @see org.apache.airavata.xbaya.ui.graph.GraphPieceGUI#mouseClicked(java.awt.event.MouseEvent,
* org.apache.airavata.xbaya.XBayaEngine)
*/
public void mouseClicked(MouseEvent event, XBayaEngine engine) {
// Nothing
}
/**
* @param bool
*/
protected void setSelectedFlag(boolean bool) {
this.selected = bool;
}
/**
* @return the middle point of the edge
*/
protected Point getMiddlePosition() {
Point point1 = getFromPosition();
Point point2 = getToPosition();
Point midPoint = new Point((point1.x + point2.x) / 2, (point1.y + point2.y) / 2);
return midPoint;
}
/**
* @param g
*/
protected void paint(Graphics2D g) {
DrawUtils.initializeGraphics2D(g);
Point point1 = getFromPosition();
Point point2 = getToPosition();
g.setColor(lineColor);
Stroke originalStroke = g.getStroke();
if (this.edge instanceof ControlEdge) {
g.setStroke(EdgeGUI.CONTROL_EDGE_STROKE);
}
paintLine(point1, point2, g);
g.setStroke(originalStroke);
g.setColor(this.selected ? pointColor : selectedPointColor);
Point midPoint = getMiddlePosition();
g.fillArc(midPoint.x - POINT_SIZE / 2, midPoint.y - POINT_SIZE / 2, POINT_SIZE, POINT_SIZE, 0, 360);
}
protected static void paintLine(Point point1, Point point2, Graphics2D g) {
int d = 100;
int dist = (int) point1.distance(point2);
if (dist < d) {
d = dist;
}
CubicCurve2D line = new CubicCurve2D.Double(point1.x, point1.y, point1.x + d, point1.y, point2.x - d, point2.y,
point2.x, point2.y);
g.draw(line);
}
private Point getFromPosition() {
Port port = this.edge.getFromPort();
return NodeController.getGUI(port).getPosition();
}
private Point getToPosition() {
Port port = this.edge.getToPort();
return NodeController.getGUI(port).getPosition();
}
}