bundles/org.simantics.scenegraph/src/org/simantics/scenegraph/g2d/nodes/MessageNotificationNode.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.scenegraph.g2d.nodes;
  13
  14 import java.awt.AlphaComposite;
  15 import java.awt.BasicStroke;
  16 import java.awt.Color;
  17 import java.awt.Composite;
  18 import java.awt.Font;
  19 import java.awt.FontMetrics;
  20 import java.awt.Graphics2D;
  21 import java.awt.RenderingHints;
  22 import java.awt.Stroke;
  23 import java.awt.geom.Rectangle2D;
  24 import java.awt.geom.RoundRectangle2D;
  25
  26 import org.simantics.scenegraph.g2d.G2DNode;
  27 import org.simantics.scenegraph.utils.TextUtil;
  28
  29 /**
  30  * @author Tuukka Lehtonen
  31  */
  32 public class MessageNotificationNode extends G2DNode {
  33
  34     private static final long   serialVersionUID = -7518450802171689793L;
  35
  36     private static final Stroke PROGRESS_STROKE  = new BasicStroke(1f);
  37
  38     private Rectangle2D       bounds;
  39     private Font              font;
  40     private double            margin;
  41     private double            progress;
  42     private String            message;
  43
  44     @SyncField({"bounds", "font", "margin", "progress", "message"})
  45     public void init(Rectangle2D bounds, Font font, double margin, double progress, String message) {
  46         this.bounds = bounds;
  47         this.font = font;
  48         this.margin = margin;
  49         this.progress = progress;
  50         this.message = message;
  51     }
  52
  53     @Override
  54     public void render(Graphics2D g2d) {
  55         double x = bounds.getX();
  56         double y = bounds.getY();
  57         double width = bounds.getWidth();
  58         double height = bounds.getHeight();
  59         double rx = 20;
  60         double ry = 20;
  61
  62         RoundRectangle2D rr = new RoundRectangle2D.Double(x, y, width, height, rx, ry);
  63
  64         Composite oc = g2d.getComposite();
  65
  66         // Base
  67         {
  68             g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  69             g2d.setComposite(AlphaComposite.SrcOver.derive(0.5f));
  70             g2d.setPaint(Color.BLACK);
  71             g2d.fill(rr);
  72         }
  73
  74         // Message
  75         {
  76             g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
  77             g2d.setComposite(AlphaComposite.Src);
  78             g2d.setFont(font);
  79             FontMetrics fm = g2d.getFontMetrics(font);
  80             String[] lines = TextUtil.wordWrap(message, fm, (int) (width - 2*margin));
  81             g2d.setColor(Color.WHITE);
  82             float fh = fm.getHeight() + 1;
  83             float tx = (float)(x + margin);
  84             float ty = (float)(y + fm.getMaxAscent() + margin);
  85             for (int i = 0; i < lines.length; ++i) {
  86                 if ((ty + fm.getMaxDescent() + margin) > rr.getMaxY())
  87                     break;
  88                 g2d.drawString(lines[i], tx, ty);
  89                 ty += fh;
  90             }
  91         }
  92
  93         // Progress
  94         {
  95             g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
  96             float c = (float) (0.15f + 0.75f*Math.sin(progress*Math.PI));
  97             if(c >= 0 && c <= 1.0f)
  98                 g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, c));
  99             g2d.setStroke(PROGRESS_STROKE);
 100             g2d.draw(new Rectangle2D.Double(x + margin, y + height - margin/2 - 2, (width - 2*margin), margin/2));
 101             g2d.fill(new Rectangle2D.Double(x + margin + 2, y + height - margin/2, (width - 2*margin - 4)*progress, margin/2 - 3));
 102         }
 103
 104         g2d.setComposite(oc);
 105
 106     }
 107
 108     @Override
 109     public String toString() {
 110         return super.toString() + "[bounds=" + bounds + ", font=" + font + ", margin=" + margin + ", progress="
 111         + progress + ", message=" + message + "]";
 112     }
 113
 114     @Override
 115     public Rectangle2D getBoundsInLocal() {
 116         return bounds;
 117     }
 118
 119 }