Mercurial > projects > dwt2
annotate org.eclipse.jface/src/org/eclipse/jface/dialogs/StatusDialog.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, 2006 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.dialogs.StatusDialog; |
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14 |
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15 import org.eclipse.jface.dialogs.Dialog; |
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16 import org.eclipse.jface.dialogs.TrayDialog; |
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17 import org.eclipse.jface.dialogs.IDialogConstants; |
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18 |
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19 import org.eclipse.swt.SWT; |
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20 import org.eclipse.swt.custom.CLabel; |
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21 import org.eclipse.swt.graphics.Color; |
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22 import org.eclipse.swt.graphics.Image; |
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23 import org.eclipse.swt.layout.GridData; |
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24 import org.eclipse.swt.layout.GridLayout; |
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25 import org.eclipse.swt.widgets.Button; |
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26 import org.eclipse.swt.widgets.Composite; |
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27 import org.eclipse.swt.widgets.Control; |
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28 import org.eclipse.swt.widgets.Shell; |
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29 import org.eclipse.core.runtime.IStatus; |
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30 import org.eclipse.core.runtime.Status; |
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31 import org.eclipse.jface.resource.JFaceColors; |
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32 import org.eclipse.jface.resource.JFaceResources; |
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33 import org.eclipse.jface.util.Policy; |
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34 import org.eclipse.jface.util.Util; |
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35 |
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36 import java.lang.all; |
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37 import java.util.Set; |
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38 |
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39 /** |
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40 * An abstract base class for dialogs with a status bar and OK/CANCEL buttons. |
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41 * The status message is specified in an IStatus which can be of severity ERROR, |
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42 * WARNING, INFO or OK. The OK button is enabled or disabled depending on the |
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43 * status. |
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44 * |
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45 * @since 3.1 |
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46 */ |
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47 public abstract class StatusDialog : TrayDialog { |
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48 |
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49 private Button fOkButton; |
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50 |
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51 private MessageLine fStatusLine; |
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52 |
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53 private IStatus fLastStatus; |
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54 |
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55 private String fTitle; |
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56 |
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57 private Image fImage; |
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58 |
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59 private bool fStatusLineAboveButtons = true; |
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60 |
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61 /** |
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62 * A message line displaying a status. |
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63 */ |
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64 private class MessageLine : CLabel { |
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65 |
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66 private Color fNormalMsgAreaBackground; |
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67 |
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68 /** |
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69 * Creates a new message line as a child of the given parent. |
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70 * |
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71 * @param parent |
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72 */ |
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73 public this(Composite parent) { |
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74 this(parent, SWT.LEFT); |
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75 } |
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76 |
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77 /** |
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78 * Creates a new message line as a child of the parent and with the |
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79 * given SWT stylebits. |
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80 * |
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81 * @param parent |
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82 * @param style |
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83 */ |
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84 public this(Composite parent, int style) { |
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85 super(parent, style); |
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86 fNormalMsgAreaBackground = getBackground(); |
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87 } |
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88 |
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89 /** |
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90 * Find an image assocated with the status. |
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91 * |
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92 * @param status |
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93 * @return Image |
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94 */ |
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95 private Image findImage(IStatus status) { |
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96 if (status.isOK()) { |
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97 return null; |
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98 } else if (status.matches(IStatus.ERROR)) { |
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99 return JFaceResources.getImage(Dialog.DLG_IMG_MESSAGE_ERROR); |
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100 } else if (status.matches(IStatus.WARNING)) { |
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101 return JFaceResources.getImage(Dialog.DLG_IMG_MESSAGE_WARNING); |
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102 } else if (status.matches(IStatus.INFO)) { |
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103 return JFaceResources.getImage(Dialog.DLG_IMG_MESSAGE_INFO); |
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104 } |
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105 return null; |
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106 } |
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107 |
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108 /** |
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109 * Sets the message and image to the given status. |
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110 * |
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111 * @param status |
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112 * IStatus or <code>null</code>. <code>null</code> will |
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113 * set the empty text and no image. |
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114 */ |
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115 public void setErrorStatus(IStatus status) { |
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116 if (status !is null && !status.isOK()) { |
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117 String message = status.getMessage(); |
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118 if (message !is null && message.length > 0) { |
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119 setText(message); |
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120 // unqualified call of setImage is too ambiguous for |
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121 // Foundation 1.0 compiler |
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122 // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=140576 |
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123 this.outer.setImage(findImage(status)); |
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124 setBackground(JFaceColors.getErrorBackground(getDisplay())); |
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125 return; |
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126 } |
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127 } |
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128 setText(""); //$NON-NLS-1$ |
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129 // unqualified call of setImage is too ambiguous for Foundation 1.0 |
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130 // compiler |
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131 // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=140576 |
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132 this.outer.setImage(null); |
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133 setBackground(fNormalMsgAreaBackground); |
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134 } |
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135 } |
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136 |
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137 /** |
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138 * Creates an instance of a status dialog. |
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139 * |
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140 * @param parent |
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141 * the parent Shell of the dialog |
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142 */ |
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143 public this(Shell parent) { |
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144 super(parent); |
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145 fLastStatus = new Status(IStatus.OK, Policy.JFACE, IStatus.OK, |
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146 Util.ZERO_LENGTH_STRING, null); |
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147 } |
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148 |
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149 /** |
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150 * Specifies whether status line appears to the left of the buttons |
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151 * (default) or above them. |
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152 * |
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153 * @param aboveButtons |
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154 * if <code>true</code> status line is placed above buttons; if |
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155 * <code>false</code> to the right |
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156 */ |
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157 public void setStatusLineAboveButtons(bool aboveButtons) { |
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158 fStatusLineAboveButtons = aboveButtons; |
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159 } |
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160 |
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161 /** |
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162 * Update the dialog's status line to reflect the given status. It is safe |
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163 * to call this method before the dialog has been opened. |
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164 * |
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165 * @param status |
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166 * the status to set |
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167 */ |
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168 protected void updateStatus(IStatus status) { |
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169 fLastStatus = status; |
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170 if (fStatusLine !is null && !fStatusLine.isDisposed()) { |
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171 updateButtonsEnableState(status); |
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172 fStatusLine.setErrorStatus(status); |
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173 } |
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174 } |
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175 |
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176 /** |
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177 * Returns the last status. |
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178 * |
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179 * @return IStatus |
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180 */ |
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181 public IStatus getStatus() { |
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182 return fLastStatus; |
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183 } |
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184 |
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185 /** |
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186 * Updates the status of the ok button to reflect the given status. |
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187 * Subclasses may override this method to update additional buttons. |
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188 * |
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189 * @param status |
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190 * the status. |
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191 */ |
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192 protected void updateButtonsEnableState(IStatus status) { |
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193 if (fOkButton !is null && !fOkButton.isDisposed()) { |
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194 fOkButton.setEnabled(!status.matches(IStatus.ERROR)); |
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195 } |
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196 } |
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197 |
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198 /* |
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199 * @see Window#create(Shell) |
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200 */ |
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201 protected override void configureShell(Shell shell) { |
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202 super.configureShell(shell); |
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203 if (fTitle !is null) { |
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204 shell.setText(fTitle); |
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205 } |
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206 } |
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207 |
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208 /* |
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209 * @see Window#create() |
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210 */ |
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211 public override void create() { |
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212 super.create(); |
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213 if (fLastStatus !is null) { |
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214 // policy: dialogs are not allowed to come up with an error message |
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215 if (fLastStatus.matches(IStatus.ERROR)) { |
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216 // remove the message |
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217 fLastStatus = new Status(IStatus.ERROR, |
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218 fLastStatus.getPlugin(), fLastStatus.getCode(), |
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219 "", fLastStatus.getException()); //$NON-NLS-1$ |
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220 } |
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221 updateStatus(fLastStatus); |
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222 } |
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223 } |
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224 |
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225 /* |
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226 * @see Dialog#createButtonsForButtonBar(Composite) |
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227 */ |
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228 protected override void createButtonsForButtonBar(Composite parent) { |
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229 fOkButton = createButton(parent, IDialogConstants.OK_ID, |
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230 IDialogConstants.OK_LABEL, true); |
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231 createButton(parent, IDialogConstants.CANCEL_ID, |
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232 IDialogConstants.CANCEL_LABEL, false); |
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233 } |
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234 |
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235 /* |
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236 * @see Dialog#createButtonBar(Composite) |
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237 */ |
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238 protected override Control createButtonBar(Composite parent) { |
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239 Composite composite = new Composite(parent, SWT.NULL); |
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240 GridLayout layout = new GridLayout(); |
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241 |
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242 if (fStatusLineAboveButtons) { |
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243 layout.numColumns = 1; |
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244 } else { |
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245 layout.numColumns = 2; |
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246 } |
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247 |
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248 layout.marginHeight = 0; |
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249 layout.marginLeft = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN); |
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250 layout.marginWidth = 0; |
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251 composite.setLayout(layout); |
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252 composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); |
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253 |
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254 if (!fStatusLineAboveButtons && isHelpAvailable()) { |
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255 createHelpControl(composite); |
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256 } |
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257 fStatusLine = new MessageLine(composite); |
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258 fStatusLine.setAlignment(SWT.LEFT); |
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259 GridData statusData = new GridData(GridData.FILL_HORIZONTAL); |
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260 fStatusLine.setErrorStatus(null); |
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261 if (fStatusLineAboveButtons && isHelpAvailable()) { |
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262 statusData.horizontalSpan = 2; |
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263 createHelpControl(composite); |
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264 } |
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265 fStatusLine.setLayoutData(statusData); |
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266 applyDialogFont(composite); |
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267 |
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268 /* |
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269 * Create the rest of the button bar, but tell it not to create a help |
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270 * button (we've already created it). |
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271 */ |
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272 bool helpAvailable = isHelpAvailable(); |
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273 setHelpAvailable(false); |
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274 super.createButtonBar(composite); |
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275 setHelpAvailable(helpAvailable); |
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276 return composite; |
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277 } |
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278 |
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279 /** |
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280 * Sets the title for this dialog. |
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281 * |
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282 * @param title |
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283 * the title. |
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284 */ |
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285 public void setTitle(String title) { |
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286 fTitle = title !is null ? title : ""; //$NON-NLS-1$ |
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287 Shell shell = getShell(); |
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288 if ((shell !is null) && !shell.isDisposed()) { |
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289 shell.setText(fTitle); |
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290 } |
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291 } |
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292 |
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293 /** |
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294 * Sets the image for this dialog. |
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295 * |
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296 * @param image |
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297 * the image. |
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298 */ |
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299 public void setImage(Image image) { |
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300 fImage = image; |
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301 Shell shell = getShell(); |
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302 if ((shell !is null) && !shell.isDisposed()) { |
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303 shell.setImage(fImage); |
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304 } |
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305 } |
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306 |
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307 } |