1 /*******************************************************************************
\r
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
\r
3 * in Industry THTH ry.
\r
4 * All rights reserved. This program and the accompanying materials
\r
5 * are made available under the terms of the Eclipse Public License v1.0
\r
6 * which accompanies this distribution, and is available at
\r
7 * http://www.eclipse.org/legal/epl-v10.html
\r
10 * VTT Technical Research Centre of Finland - initial API and implementation
\r
11 *******************************************************************************/
\r
12 package org.simantics.scenegraph.utils;
\r
14 import java.awt.Color;
\r
15 import java.awt.Graphics2D;
\r
16 import java.awt.Point;
\r
17 import java.awt.RenderingHints;
\r
18 import java.awt.geom.AffineTransform;
\r
19 import java.awt.geom.Rectangle2D;
\r
21 import com.kitfox.svg.SVGDiagram;
\r
22 import com.kitfox.svg.SVGException;
\r
27 public class BufferedImage {
\r
29 Rectangle2D imageBounds;
\r
30 Point referenceSize;
\r
32 java.awt.image.BufferedImage buffer = null;
\r
33 AffineTransform previousTransform = null;
\r
37 * @param imageBounds
\r
38 * @param referenceSize a reference size for the rasterized images or
\r
39 * <code>null</code> to not specify one in which case a default
\r
40 * resolution is used
\r
42 public BufferedImage(SVGDiagram original, Rectangle2D imageBounds, Point referenceSize) {
\r
43 this.source = original;
\r
44 this.imageBounds = imageBounds;
\r
45 this.referenceSize = referenceSize;
\r
48 public BufferedImage(SVGDiagram original) {
\r
49 this.source = original;
\r
50 this.imageBounds = original.getViewRect();
\r
51 this.referenceSize = null;
\r
54 public java.awt.image.BufferedImage getBuffer() {
\r
59 public void finalize() throws Throwable {
\r
60 //System.out.println("BufferedImage.finalize()");
\r
65 public synchronized void releaseRaster() {
\r
67 if (buffer != null) {
\r
73 public void paintToBuffer(AffineTransform transform, float margin) throws SVGException {
\r
75 int w = (int)((imageBounds.getWidth()+margin*2) * transform.getScaleX());
\r
76 int h = (int)((imageBounds.getHeight()+margin*2) * transform.getScaleY());
\r
78 if(h < 1) h = 1; // FIXME
\r
80 buffer = new java.awt.image.BufferedImage(w, h, java.awt.image.BufferedImage.TYPE_INT_ARGB);
\r
82 Graphics2D b2g = (Graphics2D)buffer.getGraphics();
\r
84 b2g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
\r
85 b2g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
\r
86 b2g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
\r
88 b2g.setBackground(Color.WHITE);
\r
89 b2g.clearRect(0, 0, w, h);
\r
90 b2g.translate(margin, margin);
\r
91 b2g.scale(transform.getScaleX(), transform.getScaleY());
\r
92 b2g.translate(-imageBounds.getMinX(), -imageBounds.getMinY());
\r
97 public void paint(Graphics2D g) {
\r
100 if(previousTransform == null || previousTransform.getScaleX() != g.getTransform().getScaleX() || previousTransform.getScaleY() != g.getTransform().getScaleY()) {
\r
101 // setupSourceRender(g);
\r
103 previousTransform = (AffineTransform)g.getTransform().clone();
\r
104 paintToBuffer(previousTransform, margin);
\r
105 } catch (SVGException e) {
\r
106 // TODO Auto-generated catch block
\r
107 e.printStackTrace();
\r
111 g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
\r
112 g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
\r
113 g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
\r
114 g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
\r
116 AffineTransform at = (AffineTransform)g.getTransform().clone();
\r
118 g.translate(imageBounds.getMinX(), imageBounds.getMinY());
\r
119 g.scale(1/previousTransform.getScaleX(), 1/previousTransform.getScaleY());
\r
120 g.translate(-margin, -margin);
\r
122 g.drawImage(buffer, 0, 0, null);
\r
124 g.setTransform(at);
\r