Mercurial > projects > dwt2
annotate org.eclipse.jface/src/org/eclipse/jface/action/IAction.d @ 12:bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 14 Mar 2009 18:23:29 +0100 |
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 2008 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.jface.action.IAction; |
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14 |
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15 import org.eclipse.jface.action.IMenuCreator; |
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16 |
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17 import org.eclipse.swt.events.HelpListener; |
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18 import org.eclipse.swt.widgets.Event; |
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19 import org.eclipse.core.commands.IHandlerAttributes; |
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20 import org.eclipse.jface.resource.ImageDescriptor; |
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21 import org.eclipse.jface.util.IPropertyChangeListener; |
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22 |
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23 import java.lang.all; |
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24 import java.util.Set; |
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25 |
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26 /** |
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27 * An action represents the non-UI side of a command which can be triggered |
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28 * by the end user. Actions are typically associated with buttons, menu items, |
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29 * and items in tool bars. The controls for a command are built by some container, |
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30 * which furnished the context where these controls appear and configures |
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31 * them with data from properties declared by the action. When the end user |
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32 * triggers the command via its control, the action's <code>run</code> |
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33 * method is invoked to do the real work. |
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34 * <p> |
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35 * Actions support a predefined set of properties (and possibly others as well). |
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36 * Clients of an action may register property change listeners so that they get |
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37 * notified whenever the value of a property changes. |
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38 * </p> |
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39 * <p> |
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40 * Clients should subclass the abstract base class <code>Action</code> to define |
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41 * concrete actions rather than implementing <code>IAction</code> from scratch. |
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42 * </p> |
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43 * <p> |
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44 * This interface exists only to define the API for actions. |
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45 * It is not intended to be implemented by clients. |
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46 * </p> |
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47 * |
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48 * @see Action |
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49 * @noimplement This interface is not intended to be implemented by clients. |
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50 */ |
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51 public interface IAction { |
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52 |
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53 /** |
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54 * Action style constant (value <code>0</code>) indicating action style |
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55 * is not specified yet. By default, the action will assume a push button |
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56 * style. If <code>setChecked</code> is called, then the style will change |
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57 * to a check box, or if <code>setMenuCreator</code> is called, then the |
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58 * style will change to a drop down menu. |
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59 * |
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60 * @since 2.1 |
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61 */ |
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62 public static const int AS_UNSPECIFIED = 0x00; |
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63 |
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64 /** |
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65 * Action style constant (value <code>1</code>) indicating action is |
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66 * a simple push button. |
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67 */ |
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68 public static const int AS_PUSH_BUTTON = 0x01; |
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69 |
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70 /** |
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71 * Action style constant (value <code>2</code>) indicating action is |
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72 * a check box (or a toggle button). |
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73 */ |
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74 public static const int AS_CHECK_BOX = 0x02; |
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75 |
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76 /** |
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77 * Action style constant (value <code>4</code>) indicating action is |
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78 * a drop down menu. |
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79 */ |
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80 public static const int AS_DROP_DOWN_MENU = 0x04; |
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81 |
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82 /** |
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83 * Action style constant (value <code>8</code>) indicating action is |
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84 * a radio button. |
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85 * |
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86 * @since 2.1 |
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87 */ |
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88 public static const int AS_RADIO_BUTTON = 0x08; |
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89 |
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90 /** |
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91 * Property name of an action's text (value <code>"text"</code>). |
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92 */ |
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93 public static const String TEXT = "text"; //$NON-NLS-1$ |
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94 |
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95 /** |
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96 * Property name of an action's enabled state |
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97 * (value <code>"enabled"</code>). |
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98 */ |
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99 public static const String ENABLED = "enabled"; //$NON-NLS-1$ |
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100 |
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101 /** |
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102 * Property name of an action's image (value <code>"image"</code>). |
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103 */ |
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104 public static const String IMAGE = "image"; //$NON-NLS-1$ |
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105 |
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106 /** |
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107 * Property name of an action's tooltip text (value <code>"toolTipText"</code>). |
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108 */ |
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109 public static const String TOOL_TIP_TEXT = "toolTipText"; //$NON-NLS-1$ |
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110 |
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111 /** |
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112 * Property name of an action's description (value <code>"description"</code>). |
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113 * Typically the description is shown as a (longer) help text in the status line. |
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114 */ |
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115 public static const String DESCRIPTION = "description"; //$NON-NLS-1$ |
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116 |
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117 /** |
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118 * Property name of an action's checked status (value |
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119 * <code>"checked"</code>). Applicable when the style is |
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120 * <code>AS_CHECK_BOX</code> or <code>AS_RADIO_BUTTON</code>. |
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121 */ |
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122 public static const String CHECKED = "checked"; //$NON-NLS-1$ |
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123 |
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124 /** |
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125 * Property name of an action's success/fail result |
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126 * (value <code>"result"</code>). The values are |
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127 * <code>Boolean.TRUE</code> if running the action succeeded and |
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128 * <code>Boolean.FALSE</code> if running the action failed or did not |
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129 * complete. |
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130 * <p> |
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131 * Not all actions report whether they succeed or fail. This property |
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132 * is provided for use by actions that may be invoked by clients that can |
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133 * take advantage of this information when present (for example, actions |
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134 * used in cheat sheets). Clients should always assume that running the |
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135 * action succeeded in the absence of notification to the contrary. |
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136 * </p> |
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137 * |
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138 * @since 3.0 |
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139 */ |
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140 public static const String RESULT = "result"; //$NON-NLS-1$ |
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141 |
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142 /** |
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143 * Property name of an action's handler. Some actions delegate some or all |
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144 * of their behaviour or state to another object. In this case, if the |
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145 * object to which behaviour has been delegated changes, then a property |
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146 * change event should be sent with this name. |
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147 * |
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148 * This is used to support backward compatibility of actions within the |
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149 * commands framework. |
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150 * |
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151 * @since 3.1 |
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152 */ |
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153 public static const String HANDLED = IHandlerAttributes.ATTRIBUTE_HANDLED; |
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154 |
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155 /** |
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156 * Adds a property change listener to this action. |
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157 * Has no effect if an identical listener is already registered. |
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158 * |
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159 * @param listener a property change listener |
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160 */ |
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161 public void addPropertyChangeListener(IPropertyChangeListener listener); |
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162 |
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163 /** |
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164 * Returns the accelerator keycode for this action. |
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165 * The result is the bit-wise OR of zero or more modifier masks |
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166 * and a key, as explained in <code>MenuItem.getAccelerator</code>. |
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167 * |
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168 * @return the accelerator keycode |
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169 * @see org.eclipse.swt.widgets.MenuItem#getAccelerator() |
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170 */ |
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171 public int getAccelerator(); |
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172 |
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173 /** |
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174 * Returns the action definition id of this action. |
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175 * |
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176 * @return the action definition id of this action, or |
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177 * <code>null</code> if none |
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178 * @since 2.0 |
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179 */ |
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180 public String getActionDefinitionId(); |
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181 |
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182 /** |
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183 * Returns the action's description if it has one. |
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184 * Otherwise it returns <code>getToolTipText()</code>. |
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185 * |
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186 * @return a description for the action; may be <code>null</code> |
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187 */ |
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188 public String getDescription(); |
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189 |
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190 /** |
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191 * Returns the disabled image for this action as an image descriptor. |
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192 * <p> |
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193 * This method is associated with the <code>IMAGE</code> property; |
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194 * property change events are reported when its value changes. |
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195 * </p> |
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196 * |
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197 * @return the image, or <code>null</code> if this action has no image |
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198 * @see #IMAGE |
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199 */ |
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200 public ImageDescriptor getDisabledImageDescriptor(); |
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201 |
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202 /** |
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203 * Returns a help listener for this action. |
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204 * |
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205 * @return a help listener for this action |
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206 */ |
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207 public HelpListener getHelpListener(); |
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208 |
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209 /** |
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210 * Returns the hover image for this action as an image descriptor. |
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211 * <p> |
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212 * Hover images will be used on platforms that support changing the image |
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213 * when the user hovers over the item. This method is associated with |
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214 * the <code>IMAGE</code> property; |
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215 * property change events are reported when its value changes. |
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216 * </p> |
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217 * |
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218 * @return the image, or <code>null</code> if this action has no image |
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219 * @see #IMAGE |
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220 */ |
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221 public ImageDescriptor getHoverImageDescriptor(); |
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222 |
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223 /** |
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224 * Returns a unique identifier for this action, or <code>null</code> if it has |
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225 * none. |
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226 * |
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227 * @return the action id, or <code>null</code> if none |
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228 */ |
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229 public String getId(); |
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230 |
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231 /** |
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232 * Returns the image for this action as an image descriptor. |
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233 * <p> |
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234 * This method is associated with the <code>IMAGE</code> property; |
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235 * property change events are reported when its value changes. |
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236 * </p> |
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237 * |
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238 * @return the image, or <code>null</code> if this action has no image |
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239 * @see #IMAGE |
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240 */ |
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241 public ImageDescriptor getImageDescriptor(); |
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242 |
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243 /** |
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244 * Returns the menu creator for this action. |
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245 * |
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246 * @return the menu creator, or <code>null</code> if none |
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247 */ |
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248 public IMenuCreator getMenuCreator(); |
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249 |
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250 /** |
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251 * Return this action's style. |
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252 * |
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253 * @return one of <code>AS_PUSH_BUTTON</code>, <code>AS_CHECK_BOX</code>, |
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254 * <code>AS_RADIO_BUTTON</code> and <code>AS_DROP_DOWN_MENU</code>. |
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255 */ |
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256 public int getStyle(); |
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257 |
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258 /** |
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259 * Returns the text for this action. |
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260 * <p> |
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261 * This method is associated with the <code>TEXT</code> property; |
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262 * property change events are reported when its value changes. |
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263 * </p> |
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264 * |
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265 * @return the text, or <code>null</code> if none |
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266 * @see #TEXT |
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267 */ |
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268 public String getText(); |
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269 |
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270 /** |
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271 * Returns the tool tip text for this action. |
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272 * <p> |
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273 * This method is associated with the <code>TOOL_TIP_TEXT</code> property; |
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274 * property change events are reported when its value changes. |
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275 * </p> |
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276 * |
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277 * @return the tool tip text, or <code>null</code> if none |
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278 * @see #TOOL_TIP_TEXT |
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279 */ |
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280 public String getToolTipText(); |
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281 |
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282 /** |
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283 * Returns the checked status of this action. Applicable only if the style is |
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284 * <code>AS_CHECK_BOX</code> or <code>AS_RADIO_BUTTON</code>. |
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285 * <p> |
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286 * This method is associated with the <code>CHECKED</code> property; |
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287 * property change events are reported when its value changes. |
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288 * </p> |
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289 * |
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290 * @return the checked status |
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291 * @see #CHECKED |
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292 */ |
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293 public bool isChecked(); |
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294 |
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295 /** |
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296 * Returns whether this action is enabled. |
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297 * <p> |
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298 * This method is associated with the <code>ENABLED</code> property; |
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299 * property change events are reported when its value changes. |
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300 * </p> |
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301 * |
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302 * @return <code>true</code> if enabled, and |
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303 * <code>false</code> if disabled |
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304 * @see #ENABLED |
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305 */ |
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306 public bool isEnabled(); |
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307 |
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308 /** |
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309 * Returns whether this action is handled. In the default case, this is |
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310 * always <code>true</code>. However, if the action delegates some of its |
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311 * behaviour to some other object, then this method should answer whether |
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312 * such an object is currently available. |
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313 * |
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314 * @return <code>true</code> if all of the action's behaviour is |
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315 * available; <code>false</code> otherwise. |
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316 * @since 3.1 |
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317 */ |
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318 public bool isHandled(); |
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319 |
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320 /** |
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321 * Removes the given listener from this action. |
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322 * Has no effect if an identical listener is not registered. |
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323 * |
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324 * @param listener a property change listener |
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325 */ |
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326 public void removePropertyChangeListener(IPropertyChangeListener listener); |
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327 |
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328 /** |
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329 * Runs this action. |
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330 * Each action implementation must define the steps needed to carry out this action. |
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331 * The default implementation of this method in <code>Action</code> |
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332 * does nothing. |
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333 */ |
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334 public void run(); |
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335 |
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336 /** |
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337 * Runs this action, passing the triggering SWT event. |
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338 * As of 2.0, <code>ActionContributionItem</code> calls this method |
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339 * instead of <code>run()</code>. |
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340 * The default implementation of this method in <code>Action</code> |
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341 * simply calls <code>run()</code> for backwards compatibility. |
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342 * |
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343 * @param event the SWT event which triggered this action being run |
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344 * @since 2.0 |
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345 */ |
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346 public void runWithEvent(Event event); |
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347 |
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348 /** |
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349 * Sets the action definition id of this action. |
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350 * |
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351 * @param id the action definition id |
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352 * @since 2.0 |
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353 */ |
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354 public void setActionDefinitionId(String id); |
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355 |
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356 /** |
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357 * Sets the checked status of this action. Applicable for the styles |
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358 * <code>AS_CHECK_BOX</code> or <code>AS_RADIO_BUTTON</code>. |
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359 * <p> |
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360 * Fires a property change event for the <code>CHECKED</code> property |
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361 * if the checked status actually changes as a consequence. |
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362 * </p> |
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363 * |
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364 * @param checked the new checked status |
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365 * @see #CHECKED |
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366 */ |
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367 public void setChecked(bool checked); |
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368 |
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369 /** |
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370 * Sets this action's description. |
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371 * Typically the description is shown as a (longer) help text in the status line. |
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372 * <p> |
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373 * Fires a property change event for the <code>DESCRIPTION</code> property |
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374 * if the description actually changes as a consequence. |
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375 * </p> |
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376 * |
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377 * @param text the description, or <code>null</code> to clear the description |
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378 * @see #DESCRIPTION |
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379 */ |
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380 public void setDescription(String text); |
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381 |
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382 /** |
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383 * Sets the disabled image for this action, as an image descriptor. |
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384 * <p> |
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385 * Disabled images will be used on platforms that support changing the image |
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386 * when the item is disabled.Fires a property change event for |
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387 * the <code>IMAGE</code> property |
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388 * if the image actually changes as a consequence. |
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389 * </p> |
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390 * |
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391 * @param newImage the image, or <code>null</code> if this |
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392 * action should not have an image |
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393 * @see #IMAGE |
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394 */ |
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395 public void setDisabledImageDescriptor(ImageDescriptor newImage); |
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396 |
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397 /** |
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398 * Sets the enabled state of this action. |
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399 * <p> |
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400 * When an action is in the enabled state, the control associated with |
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401 * it is active; triggering it will end up inkoking this action's |
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402 * <code>run</code> method. |
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403 * </p> |
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404 * <p> |
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405 * Fires a property change event for the <code>ENABLED</code> property |
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406 * if the enabled state actually changes as a consequence. |
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407 * </p> |
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408 * |
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409 * @param enabled <code>true</code> to enable, and |
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410 * <code>false</code> to disable |
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411 * @see #ENABLED |
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412 */ |
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413 public void setEnabled(bool enabled); |
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414 |
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415 /** |
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416 * Sets a help listener for this action. |
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417 * |
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418 * @param listener a help listener for this action |
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419 */ |
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420 public void setHelpListener(HelpListener listener); |
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421 |
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422 /** |
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423 * Sets the hover image for this action, as an image descriptor. |
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424 * <p> |
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425 * Hover images will be used on platforms that support changing the image |
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426 * when the user hovers over the item.Fires a property change event for |
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427 * the <code>IMAGE</code> property |
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428 * if the image actually changes as a consequence. |
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429 * </p> |
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430 * |
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431 * @param newImage the image, or <code>null</code> if this |
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432 * action should not have an image |
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433 * @see #IMAGE |
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434 */ |
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435 public void setHoverImageDescriptor(ImageDescriptor newImage); |
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436 |
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437 /** |
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438 * Sets the unique identifier for this action. This is used to identify actions |
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439 * when added to a contribution manager. |
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440 * It should be set when the action is created. It should not be modified once |
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441 * the action is part of an action contribution item. |
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442 * |
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443 * @param id the action id |
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444 * |
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445 * @see ActionContributionItem |
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446 * @see IContributionItem#getId |
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447 */ |
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448 public void setId(String id); |
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449 |
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450 /** |
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451 * Sets the image for this action, as an image descriptor. |
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452 * <p> |
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453 * Fires a property change event for the <code>IMAGE</code> property |
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454 * if the image actually changes as a consequence. |
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455 * </p> |
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456 * |
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457 * @param newImage the image, or <code>null</code> if this |
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458 * action should not have an image |
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459 * @see #IMAGE |
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460 */ |
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461 public void setImageDescriptor(ImageDescriptor newImage); |
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462 |
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463 /** |
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464 * Sets the menu creator for this action. Applicable for style |
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465 * <code>AS_DROP_DOWN_MENU</code>. |
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466 * |
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467 * @param creator the menu creator, or <code>null</code> if none |
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468 */ |
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469 public void setMenuCreator(IMenuCreator creator); |
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470 |
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471 /** |
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472 * Sets the text for this action. |
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473 * <p> |
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474 * An accelerator specification may follow the actual text, separated from it by |
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475 * an '@' or a '\t' character. An accelerator specification consists of zero or more |
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476 * modifier tokens followed by a key code token. The tokens are separated by a '+' character. |
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477 * </p> |
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478 * <p> |
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479 * Fires a property change event for the <code>TEXT</code> property |
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480 * if the text actually changes as a consequence. |
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481 * </p> |
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482 * |
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483 * @param text the text, or <code>null</code> if none |
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484 * @see #TEXT |
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485 * @see Action#findModifier |
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486 * @see Action#findKeyCode |
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487 */ |
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488 public void setText(String text); |
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489 |
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490 /** |
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491 * Sets the tool tip text for this action. |
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492 * <p> |
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493 * Fires a property change event for the <code>TOOL_TIP_TEXT</code> property |
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494 * if the tool tip text actually changes as a consequence. |
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495 * </p> |
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496 * |
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497 * @param text the tool tip text, or <code>null</code> if none |
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498 * @see #TOOL_TIP_TEXT |
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499 */ |
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500 public void setToolTipText(String text); |
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501 |
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502 /** |
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503 * <p> |
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504 * Sets the accelerator keycode that this action maps to. This is a bitwise OR |
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505 * of zero or more SWT key modifier masks (i.e. SWT.CTRL or SWT.ALT) and a |
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506 * character code. For example, for Ctrl+Z, use <code>SWT.CTRL | 'Z'</code>. |
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507 * Use 0 for no accelerator. |
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508 * </p> |
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509 * <p> |
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510 * This method should no longer be used for actions in the Eclipse workbench. |
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511 * <code>IWorkbenchCommandSupport</code> and |
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Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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512 * <code>IWorkbenchContextSupport</code> provide all the functionality |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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513 * required for key bindings. If you set an accelerator using this method, then |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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514 * it will not work in the workbench if it conflicts any existing key binding, |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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515 * or if there is a different key binding defined for this action's definition |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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516 * id. The definition id should be used instead -- referring to the command in |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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517 * the workbench from which the key binding should be retrieved. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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518 * </p> |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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519 * |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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520 * @param keycode |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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521 * the keycode to be accepted. |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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522 */ |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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523 public void setAccelerator(int keycode); |
bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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changeset
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524 } |