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annotate dbus-d-javatests/jsrc/filetree/FileTreeLabelProvider.java @ 0:a5576806d36d

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recreate repository without any libs for lightweight repository
author Frank Benoit <benoit@tionex.de>
date Sat, 20 Oct 2007 18:07:18 +0200
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children 65fb7ef02c50
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1 package filetree;
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2
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3 import java.io.File;
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4 import java.io.FileInputStream;
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5 import java.io.FileNotFoundException;
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6 import java.util.ArrayList;
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7 import java.util.List;
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8
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9 import org.eclipse.jface.viewers.ILabelProvider;
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10 import org.eclipse.jface.viewers.ILabelProviderListener;
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11 import org.eclipse.jface.viewers.LabelProviderChangedEvent;
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12 import org.eclipse.swt.graphics.Image;
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13 import org.eclipse.swt.program.Program;
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14
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15 /**
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16 * This class provides the labels for the file tree
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17 */
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18
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19 class FileTreeLabelProvider implements ILabelProvider {
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20 // The listeners
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21 private List<ILabelProviderListener> listeners;
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22
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23 // Images for tree nodes
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24 private Image file;
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25
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26 private Image dir;
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27
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28 // Label provider state: preserve case of file names/directories
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29 boolean preserveCase;
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30
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31 /**
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32 * Constructs a FileTreeLabelProvider
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33 */
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34 public FileTreeLabelProvider() {
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35 // Create the list to hold the listeners
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36 listeners = new ArrayList<ILabelProviderListener>();
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37
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38 // Create the images
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39 try {
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40 file = new Image(null, new FileInputStream("icons/file_obj.gif"));
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41 dir = new Image(null, new FileInputStream("icons/fldr_obj.gif"));
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42 } catch (FileNotFoundException e) {
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43 // Swallow it; we'll do without images
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44 }
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45 }
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46
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47 /**
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48 * Sets the preserve case attribute
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49 *
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50 * @param preserveCase
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51 * the preserve case attribute
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52 */
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53 public void setPreserveCase(boolean preserveCase) {
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54 this.preserveCase = preserveCase;
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55
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56 // Since this attribute affects how the labels are computed,
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57 // notify all the listeners of the change.
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58 LabelProviderChangedEvent event = new LabelProviderChangedEvent(this);
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59 for (int i = 0, n = listeners.size(); i < n; i++) {
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60 ILabelProviderListener ilpl = (ILabelProviderListener) listeners
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61 .get(i);
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62 ilpl.labelProviderChanged(event);
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63 }
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64 }
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65
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66 /**
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67 * Gets the image to display for a node in the tree
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68 *
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69 * @param arg0
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70 * the node
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71 * @return Image
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72 */
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73 public Image getImage(Object arg0) {
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74 // If the node represents a directory, return the directory image.
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75 // Otherwise, return the file image.
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76 // Program.findProgram(".txt" ).getImageData();
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77 return ((DataItem) arg0).isFolder() ? dir : file;
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78 }
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79
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80 /**
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81 * Gets the text to display for a node in the tree
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82 *
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83 * @param arg0
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84 * the node
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85 * @return String
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86 */
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87 public String getText(Object arg0) {
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88 // Get the name of the file
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89 String text = ((DataItem) arg0).getName();
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90
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91 // If name is blank, get the path
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92 if (text.length() == 0) {
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93 //text = ((DataItem) arg0).getPath();
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94 }
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95 System.out.println( "Text: "+text );
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96 // Check the case settings before returning the text
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97 return preserveCase ? text : text.toUpperCase();
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98 }
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99
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100 /**
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101 * Adds a listener to this label provider
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102 *
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103 * @param arg0
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104 * the listener
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105 */
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106 public void addListener(ILabelProviderListener arg0) {
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107 listeners.add(arg0);
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108 }
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109
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110 /**
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111 * Called when this LabelProvider is being disposed
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112 */
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113 public void dispose() {
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114 // Dispose the images
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115 if (dir != null)
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116 dir.dispose();
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117 if (file != null)
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118 file.dispose();
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119 }
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120
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121 /**
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122 * Returns whether changes to the specified property on the specified
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123 * element would affect the label for the element
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124 *
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125 * @param arg0
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126 * the element
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127 * @param arg1
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128 * the property
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129 * @return boolean
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130 */
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131 public boolean isLabelProperty(Object arg0, String arg1) {
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132 return false;
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133 }
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134
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135 /**
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136 * Removes the listener
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137 *
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138 * @param arg0
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139 * the listener to remove
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140 */
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141 public void removeListener(ILabelProviderListener arg0) {
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142 listeners.remove(arg0);
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143 }
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144 }
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145