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annotate org.eclipse.draw2d/src/org/eclipse/draw2d/PrinterGraphics.d @ 104:88652073d1c2

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More work on icu
author Frank Benoit <benoit@tionex.de>
date Sat, 02 May 2009 11:27:24 +0200
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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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14
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15 import java.lang.all;
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16 import java.util.HashMap;
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17 import java.util.Iterator;
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18 import java.util.Map;
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19
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20 import org.eclipse.swt.graphics.Font;
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21 import org.eclipse.swt.graphics.FontData;
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22 import org.eclipse.swt.graphics.Image;
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23 import org.eclipse.swt.printing.Printer;
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24 import org.eclipse.swt.widgets.Display;
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25 import org.eclipse.draw2d.ScaledGraphics;
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26 import org.eclipse.draw2d.Graphics;
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27
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28 /**
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29 * A scalable graphics object used to print to a printer.
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30 * @author danlee
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31 */
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32 public class PrinterGraphics : ScaledGraphics {
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33
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34 Map imageCache;
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36 Printer printer;
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37
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38 /**
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39 * Creates a new PrinterGraphics with Graphics g, using Printer p
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40 * @param g Graphics object to draw with
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41 * @param p Printer to print to
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42 */
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43 public this(Graphics g, Printer p) {
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44 imageCache = new HashMap();
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45 super(g);
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46 printer = p;
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47 }
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48
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49 Font createFont(FontData data) {
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50 return new Font(printer, data);
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51 }
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52
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53 private Image printerImage(Image image) {
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54 Image result = cast(Image)imageCache.get(image);
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55 if (result !is null)
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56 return result;
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57
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58 result = new Image(printer, image.getImageData());
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59 imageCache.put(image, result);
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60 return result;
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61 }
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62
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63 /**
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64 * @see org.eclipse.draw2d.ScaledGraphics#dispose()
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65 */
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66 public void dispose() {
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67 super.dispose();
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68
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69 //Dispose printer images
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70 Iterator iter = imageCache.values().iterator();
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71 while (iter.hasNext()) {
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72 Image printerImage = (cast(Image)iter.next());
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73 printerImage.dispose();
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74 }
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75
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76 imageCache.clear();
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77 }
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78
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79 /**
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80 * @see org.eclipse.draw2d.Graphics#drawImage(Image, int, int)
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81 */
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82 public void drawImage(Image srcImage, int x, int y) {
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83 super.drawImage(printerImage(srcImage), x, y);
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84 }
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85
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86 /**
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87 * @see Graphics#drawImage(Image, int, int, int, int, int, int, int, int)
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88 */
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89 public void drawImage(Image srcImage, int sx, int sy, int sw, int sh,
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90 int tx, int ty, int tw, int th) {
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91 super.drawImage(printerImage(srcImage), sx, sy, sw, sh, tx, ty, tw, th);
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92 }
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93
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94 int zoomFontHeight(int height) {
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95 return cast(int)
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96 (height * zoom * Display.getCurrent().getDPI().y / printer.getDPI().y
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97 + 0.0000001);
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98 }
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99
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100 int zoomLineWidth(int w) {
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101 return cast(int)(w * zoom);
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102 }
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103
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104 }