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annotate dwtx/draw2d/ClickableEventHandler.d @ 98:95307ad235d9

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Added Draw2d code, still work in progress
author Frank Benoit <benoit@tionex.de>
date Sun, 03 Aug 2008 00:52:14 +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 dwtx.draw2d.ClickableEventHandler;
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14
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15 import dwt.dwthelper.utils;
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16 import dwtx.draw2d.MouseMotionListener;
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17 import dwtx.draw2d.MouseEvent;
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18 import dwtx.draw2d.KeyEvent;
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19 import dwtx.draw2d.FocusEvent;
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20 import dwtx.draw2d.KeyListener;
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21 import dwtx.draw2d.FocusListener;
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22 import dwtx.draw2d.IFigure;
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23 import dwtx.draw2d.ChangeEvent;
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24 import dwtx.draw2d.ChangeListener;
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25 import dwtx.draw2d.MouseListener;
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26 import dwtx.draw2d.FigureListener;
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27 import dwtx.draw2d.Clickable;
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28 import dwtx.draw2d.ButtonModel;
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29
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30
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31 class ClickableEventHandler
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32 : MouseMotionListener.Stub
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33 ,
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34 MouseListener,
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35 FigureListener,
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36 ChangeListener,
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37 KeyListener,
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38 FocusListener
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39 {
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40
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41 private MouseEvent lastEvent;
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42
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43 public void focusLost(FocusEvent fe) {
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44 Clickable loser = cast(Clickable)fe.loser;
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45 loser.repaint();
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46 loser.getModel().setArmed(false);
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47 loser.getModel().setPressed(false);
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48 }
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49
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50 public void focusGained(FocusEvent fe) {
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51 Clickable clickable = cast(Clickable)fe.gainer;
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52 clickable.repaint();
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53 }
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54
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55 public void figureMoved(IFigure source) {
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56 if (lastEvent is null)
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57 return;
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58 mouseDragged(lastEvent);
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59 }
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60
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61 public void handleStateChanged(ChangeEvent change) {
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62 Clickable clickable = cast(Clickable)change.getSource();
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63 if (change.getPropertyName() is ButtonModel.MOUSEOVER_PROPERTY
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64 && !clickable.isRolloverEnabled())
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65 return;
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66 clickable.repaint();
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67 }
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68
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69 public void mouseDoubleClicked(MouseEvent me) { }
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70
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71 public void mouseDragged(MouseEvent me) {
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72 lastEvent = me;
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73 Clickable click = cast(Clickable)me.getSource();
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74 ButtonModel model = click.getModel();
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75 if (model.isPressed()) {
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76 bool over = click.containsPoint(me.getLocation());
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77 model.setArmed(over);
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78 model.setMouseOver(over);
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79 }
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80 }
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81
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82 public void mouseEntered(MouseEvent me) {
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83 Clickable click = cast(Clickable)me.getSource();
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84 click.getModel().setMouseOver(true);
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85 click.addFigureListener(this);
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86 }
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87
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88 public void mouseExited(MouseEvent me) {
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89 Clickable click = cast(Clickable)me.getSource();
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90 click.getModel().setMouseOver(false);
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91 click.removeFigureListener(this);
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92 }
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93
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94 public void mouseMoved(MouseEvent me) { }
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95
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96 public void mousePressed(MouseEvent me) {
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97 if (me.button !is 1)
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98 return;
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99 lastEvent = me;
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100 Clickable click = cast(Clickable)me.getSource();
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101 ButtonModel model = click.getModel();
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102 click.requestFocus();
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103 model.setArmed(true);
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104 model.setPressed(true);
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105 me.consume();
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106 }
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107
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108 public void mouseReleased(MouseEvent me) {
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109 if (me.button !is 1)
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110 return;
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111 ButtonModel model = (cast(Clickable)me.getSource()).getModel();
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112 if (!model.isPressed())
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113 return;
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114 model.setPressed(false);
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115 model.setArmed(false);
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116 me.consume();
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117 }
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118
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119 public void keyPressed(KeyEvent ke) {
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120 ButtonModel model = (cast(Clickable)ke.getSource()).getModel();
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121 if (ke.character is ' ' || ke.character is '\r') {
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122 model.setPressed(true);
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123 model.setArmed(true);
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124 }
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125 }
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126
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127 public void keyReleased(KeyEvent ke) {
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128 ButtonModel model = (cast(Clickable)ke.getSource()).getModel();
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129 if (ke.character is ' ' || ke.character is '\r') {
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130 model.setPressed(false);
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131 model.setArmed(false);
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132 }
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133 }
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134
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135 }