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Added dwt-addons in original directory structure of eclipse.org
author Frank Benoit <benoit@tionex.de>
date Sat, 14 Mar 2009 18:23:29 +0100
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children dbfb303e8fb0
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bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2005 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.draw2d.PrinterGraphics;
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15 import java.lang.all;
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16
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17 import org.eclipse.swt.graphics.Font;
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18 import org.eclipse.swt.graphics.FontData;
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19 import org.eclipse.swt.graphics.Image;
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20 import org.eclipse.swt.printing.Printer;
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21 import org.eclipse.swt.widgets.Display;
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22 import org.eclipse.draw2d.ScaledGraphics;
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23 import org.eclipse.draw2d.Graphics;
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24
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25 /**
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26 * A scalable graphics object used to print to a printer.
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27 * @author danlee
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28 */
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29 public class PrinterGraphics : ScaledGraphics {
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30
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31 Map imageCache;
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32
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33 Printer printer;
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34
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35 /**
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36 * Creates a new PrinterGraphics with Graphics g, using Printer p
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37 * @param g Graphics object to draw with
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38 * @param p Printer to print to
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39 */
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40 public this(Graphics g, Printer p) {
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41 imageCache = new HashMap();
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42 super(g);
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43 printer = p;
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44 }
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45
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46 Font createFont(FontData data) {
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47 return new Font(printer, data);
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48 }
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49
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50 private Image printerImage(Image image) {
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51 Image result = cast(Image)imageCache.get(image);
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52 if (result !is null)
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53 return result;
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54
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55 result = new Image(printer, image.getImageData());
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56 imageCache.put(image, result);
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57 return result;
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58 }
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59
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60 /**
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61 * @see org.eclipse.draw2d.ScaledGraphics#dispose()
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62 */
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63 public void dispose() {
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64 super.dispose();
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65
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66 //Dispose printer images
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67 Iterator iter = imageCache.values().iterator();
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68 while (iter.hasNext()) {
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69 Image printerImage = (cast(Image)iter.next());
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70 printerImage.dispose();
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71 }
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72
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73 imageCache.clear();
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74 }
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75
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76 /**
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77 * @see org.eclipse.draw2d.Graphics#drawImage(Image, int, int)
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78 */
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79 public void drawImage(Image srcImage, int x, int y) {
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80 super.drawImage(printerImage(srcImage), x, y);
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81 }
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82
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83 /**
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84 * @see Graphics#drawImage(Image, int, int, int, int, int, int, int, int)
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85 */
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86 public void drawImage(Image srcImage, int sx, int sy, int sw, int sh,
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87 int tx, int ty, int tw, int th) {
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88 super.drawImage(printerImage(srcImage), sx, sy, sw, sh, tx, ty, tw, th);
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89 }
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90
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91 int zoomFontHeight(int height) {
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92 return cast(int)
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93 (height * zoom * Display.getCurrent().getDPI().y / printer.getDPI().y
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94 + 0.0000001);
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95 }
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96
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97 int zoomLineWidth(int w) {
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98 return cast(int)(w * zoom);
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99 }
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100
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101 }