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1 module jface.FileTreeViewer;
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2
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3 import dwt.DWT;
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4 import dwt.widgets.Label;
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5 import dwt.widgets.Control;
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6 import dwt.widgets.Composite;
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7 import dwt.widgets.Display;
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8 import dwt.widgets.Shell;
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9 import dwt.widgets.Button;
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10
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11 import dwt.events.SelectionAdapter;
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12 import dwt.events.SelectionEvent;
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13
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14 import dwt.graphics.Image;
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15 import dwt.graphics.ImageData;
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16
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17 import dwt.layout.GridLayout;
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18 import dwt.layout.GridData;
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19
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20 import dwtx.jface.window.ApplicationWindow;
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21
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22 import dwtx.jface.viewers.Viewer;
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23 import dwtx.jface.viewers.TreeViewer;
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24 import dwtx.jface.viewers.ITreeContentProvider;
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25 import dwtx.jface.viewers.ILabelProvider;
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26 import dwtx.jface.viewers.ILabelProviderListener;
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27 import dwtx.jface.viewers.LabelProviderChangedEvent;
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28
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29 import jive.stacktrace;
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30
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31 import dwt.dwthelper.utils;
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32 import dwt.dwthelper.ByteArrayInputStream;
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33
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34 //------------------------------------
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35 //import dwt.dwthelper.utils;
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36 //------------------------------------
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37
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38 import tango.io.FileRoots;
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39 import tango.io.FilePath;
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40
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41 import tango.util.collection.model.Seq;
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42 import tango.util.collection.ArraySeq;
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43
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44
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45 void main(){
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46 auto hw = new FileTree;
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47 hw.run();
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48 }
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49
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50 class FileTree : ApplicationWindow {
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51
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52 TreeViewer tv;
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53
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54 this(){
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55 super(null);
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56 }
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57
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58 public void run(){
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59 setBlockOnOpen(true);
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60 open();
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61 Display.getCurrent().dispose();
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62 }
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63
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64 protected void configureShell( Shell shell ){
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65 super.configureShell(shell);
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66 shell.setText( "File Tree" );
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67 shell.setSize( 400, 400 );
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68 }
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69
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70 protected Control createContents(Composite parent){
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71 /+ Label label = new Label( parent, DWT.CENTER );
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72 label.setText( "Hello, World" );
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73 return label;+/
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74
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75 auto composite = new Composite( parent, DWT.NONE );
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76 composite.setLayout( new GridLayout(1,false));
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77
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78 // Add a checkbox to toggle whether the labels preserve case
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79 auto preserveCase = new Button( composite, DWT.CHECK );
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80 preserveCase.setText( "&Preserve case" );
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81
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82 // Create the tree viewer to display the file tree
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83 tv = new TreeViewer( composite );
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84 tv.getTree().setLayoutData( new GridData( GridData.FILL_BOTH ));
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85 tv.setContentProvider( new FileTreeContentProvider());
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86 tv.setLabelProvider( new FileTreeLabelProvider() );
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87 tv.setInput( stringcast("root") );
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88
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89 // When user checks the checkbox, toggle the preserve case attribute
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90 // of the label provider
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91 preserveCase.addSelectionListener( new class SelectionAdapter{
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92 public void widgetSelected( SelectionEvent event ){
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93 auto preserveCase = (cast(Button)event.widget).getSelection();
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94 auto ftlp = cast(FileTreeLabelProvider) tv.getLabelProvider();
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95 ftlp.setPreserveCase(preserveCase);
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96 }
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97 });
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98 return composite;
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99 }
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100 }
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101
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102 class FileTreeContentProvider : ITreeContentProvider {
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103 public override Object[] getChildren( Object arg0 ){
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104 Trace.formatln( "trc line={} ", __LINE__ );
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105 try{
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106 auto fp = cast(FilePath)arg0;
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107 Object[] res;
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108 if( !fp.isFolder()) {
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109 return null;
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110 }
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111 foreach( item; fp ){
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112 res ~= FilePath.from( item );
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113 }
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114
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115 Trace.formatln( "trc line={} ", __LINE__ );
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116 return res;
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117 }
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118 catch( Exception e ){
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119 ExceptionPrintStackTrace(e);
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120 return null;
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121 }
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122 }
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123
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124 public override Object getParent(Object arg0 ){
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125 Trace.formatln( "trc line={} ", __LINE__ );
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126 auto fp = cast(FilePath)arg0;
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127 return fp.pop;
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128 }
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129
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130 public override bool hasChildren(Object arg0 ){
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131 Trace.formatln( "trc line={} ", __LINE__ );
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132 auto obj = getChildren(arg0);
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133 return obj is null ? false : obj.length > 0;
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134 }
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135
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136 public override Object[] getElements( Object arg0 ){
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137 Trace.formatln( "trc line={} ", __LINE__ );
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138 Object[] res;
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139 res ~= new FilePath( "/" );
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140 // foreach( root; FileRoots.list()){
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141 // res ~= new FilePath( root );
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142 // }
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143 return res;
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144 }
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145
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146 public override void dispose(){
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147 }
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148
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149 public override void inputChanged(Viewer arg0, Object arg1, Object arg2 ){
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150 }
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151
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152 }
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153
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154 class FileTreeLabelProvider : ILabelProvider {
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155
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156 private Seq!(ILabelProviderListener) listeners;
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157
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158 private Image file;
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159 private Image dir;
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160
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161 private bool preserveCase;
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162
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163 public this(){
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164 Trace.formatln( "trc line={} Label", __LINE__ );
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165 listeners = new ArraySeq!(ILabelProviderListener);
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166
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167 file = new Image( null, new ImageData( new ByteArrayInputStream( cast(byte[])import( "file.png" ))));
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168 dir = new Image( null, new ImageData( new ByteArrayInputStream( cast(byte[])import( "folder.png" ))));
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169 }
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170
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171 public void setPreserveCase(bool preserveCase){
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172 Trace.formatln( "trc line={} Label", __LINE__ );
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173 this.preserveCase = preserveCase;
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174 auto event = new LabelProviderChangedEvent(this);
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175 for( int i = 0, n = listeners.size(); i < n; i++ ){
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176 auto ilpl = listeners.get(i);
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177 ilpl.labelProviderChanged(event);
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178 }
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179 }
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180
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181 public override Image getImage(Object arg0){
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182 Trace.formatln( "trc line={} Label", __LINE__ );
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183 return (cast(FilePath)arg0).isFolder() ? dir : file;
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184 }
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185
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186 public override char[] getText(Object arg0){
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187 auto text = (cast(FilePath)arg0).name();
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188 // if( text.length is 0 ){
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189 // text = (cast(FilePath)arg0).pop.name();
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190 // }
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191 Trace.formatln( "name={} ", text );
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192 Trace.formatln( "trc line={} Label", __LINE__ );
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193 return "x" ~ (preserveCase ? text : text.toUpperCase());
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194 }
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195
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196 public void addListener( ILabelProviderListener arg0 ){
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197 listeners.append(arg0);
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198 }
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199
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200 public void dispose(){
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201 if( dir !is null ) dir.dispose();
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202 if( file !is null ) file.dispose();
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203 }
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204
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205 public bool isLabelProperty(Object arg0, char[] arg1){
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206 return false;
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207 }
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208
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209 public void removeListener(ILabelProviderListener arg0){
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210 listeners.remove(arg0);
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211 }
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212 }
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