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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.RangeModel;
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14
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15 import java.lang.all;
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16
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17 import org.eclipse.dwtxhelper.Bean;
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18
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19 /**
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20 * This interface represents a range of possible values as well as the current values.
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21 * There is a minumum and maximum value, a current value, and the extent. One use for a
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22 * RangeModel is a scrollbar. There is a minimum value (the top of the scrollbar), a
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23 * maximum value (the bottom of the scrollbar), a current value (the top of the thumb),
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24 * and an extent (the length of the thumb).
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25 */
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26 public interface RangeModel {
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27
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28 /** Value property name */
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29 static const String PROPERTY_VALUE = "value"; //$NON-NLS-1$
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30 /** Extent property name */
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31 static const String PROPERTY_EXTENT = "extent"; //$NON-NLS-1$
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32 /** Minimum property name */
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33 static const String PROPERTY_MINIMUM = "minimum"; //$NON-NLS-1$
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34 /** Maximum property name */
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35 static const String PROPERTY_MAXIMUM = "maximum"; //$NON-NLS-1$
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36
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37 /**
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38 * Registers listener as a PropertyChangeListener of this RangeModel. Listeners will be
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39 * notified of changes to {@link #PROPERTY_VALUE value}, {@link #PROPERTY_EXTENT extent},
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40 * {@link #PROPERTY_MINIMUM minimum} and {@link #PROPERTY_MAXIMUM maximum} properties.
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41 *
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42 * @param listener The listener to add
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43 */
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44 void addPropertyChangeListener(PropertyChangeListener listener);
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45
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46 /**
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47 * Returns the extent.
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48 * @return The extent
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49 */
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50 int getExtent();
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51
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52 /**
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53 * Returns the maximum value in the range.
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54 * @return The maximum value
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55 */
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56 int getMaximum();
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57
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58 /**
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59 * Returns the minimum value in the range.
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60 * @return The minimum value
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61 */
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62 int getMinimum();
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63
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64 /**
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65 * Returns the current value.
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66 * @return The current value
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67 */
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68 int getValue();
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69
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70 /**
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71 * Returns <code>true</code> if this RangeModel is enabled.
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72 * @return <code>true</code> if this Rangel Model is enabled
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73 */
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74 bool isEnabled();
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75
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76 /**
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77 * Removes the given listener from this RangeModel's list of PropertyChangeListeners.
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78 * @param listener The listener to remove
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79 */
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80 void removePropertyChangeListener(PropertyChangeListener listener);
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81
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82 /**
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83 * Sets min, extent, and max all at once.
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84 * @param min the new mininum
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85 * @param extent the new extent
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86 * @param max the new maximum
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87 */
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88 void setAll(int min, int extent, int max);
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89
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90 /**
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91 * Sets the extent.
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92 * @param extent The extent
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93 */
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94 void setExtent(int extent);
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95
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96 /**
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97 * Sets the maximum value of the range.
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98 * @param max The maximum value
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99 */
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100 void setMaximum(int max);
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101
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102 /**
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103 * Sets the minimum value of the range.
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104 * @param min The minimum value
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105 */
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106 void setMinimum(int min);
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107
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108 /**
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109 * Sets the current value.
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110 * @param value The current value
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111 */
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112 void setValue(int value);
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113
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114 }