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annotate dwt/events/PaintEvent.d @ 0:380af2bdd8e5

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Upload of whole dwt tree
author Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
date Sat, 09 Aug 2008 17:00:02 +0200
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2004 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 *******************************************************************************/
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11 module dwt.events.PaintEvent;
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12
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13 import dwt.dwthelper.utils;
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14
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15
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16 import dwt.graphics.GC;
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17 import dwt.widgets.Event;
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18
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19 /**
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20 * Instances of this class are sent as a result of
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21 * visible areas of controls requiring re-painting.
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22 *
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23 * @see PaintListener
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24 */
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25
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26 public final class PaintEvent extends TypedEvent {
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27
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28 /**
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29 * the graphics context to use when painting
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30 * that is configured to use the colors, font and
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31 * damaged region of the control. It is valid
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32 * only during the paint and must not be disposed
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33 */
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34 public GC gc;
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35
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36 /**
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37 * the x offset of the bounding rectangle of the
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38 * region that requires painting
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39 */
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40 public int x;
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41
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42 /**
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43 * the y offset of the bounding rectangle of the
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44 * region that requires painting
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45 */
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46 public int y;
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47
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48 /**
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49 * the width of the bounding rectangle of the
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50 * region that requires painting
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51 */
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52 public int width;
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53
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54 /**
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55 * the height of the bounding rectangle of the
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56 * region that requires painting
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57 */
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58 public int height;
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59
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60 /**
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61 * the number of following paint events which
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62 * are pending which may always be zero on
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63 * some platforms
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64 */
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65 public int count;
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66
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67 static final long serialVersionUID = 3256446919205992497L;
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68
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69 /**
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70 * Constructs a new instance of this class based on the
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71 * information in the given untyped event.
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72 *
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73 * @param e the untyped event containing the information
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74 */
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75 public PaintEvent(Event e) {
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76 super(e);
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77 this.gc = e.gc;
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78 this.x = e.x;
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79 this.y = e.y;
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80 this.width = e.width;
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81 this.height = e.height;
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82 this.count = e.count;
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83 }
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84
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85 /**
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86 * Returns a string containing a concise, human-readable
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87 * description of the receiver.
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88 *
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89 * @return a string representation of the event
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90 */
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91 public String toString() {
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92 String string = super.toString ();
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93 return string.substring (0, string.length() - 1) // remove trailing '}'
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94 + " gc=" + gc
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95 + " x=" + x
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96 + " y=" + y
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97 + " width=" + width
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98 + " height=" + height
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99 + " count=" + count
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100 + "}";
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101 }
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102 }
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103