Mercurial > projects > dwt-samples
annotate jface/FileTreeViewer.d @ 179:89de7ff0752c default tip
Add JFace snippet Snippet054NativeControlsInViewers, thanks to WasserDragoon
author | Frank Benoit <benoit@tionex.de> |
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date | Wed, 29 Apr 2009 11:01:41 +0200 |
parents | 42c3056512ba |
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rev | line source |
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62 | 1 module jface.FileTreeViewer; |
2 | |
3 import dwt.DWT; | |
4 import dwt.widgets.Label; | |
5 import dwt.widgets.Control; | |
6 import dwt.widgets.Composite; | |
7 import dwt.widgets.Display; | |
8 import dwt.widgets.Shell; | |
9 import dwt.widgets.Button; | |
10 | |
11 import dwt.events.SelectionAdapter; | |
12 import dwt.events.SelectionEvent; | |
13 | |
14 import dwt.graphics.Image; | |
15 import dwt.graphics.ImageData; | |
16 | |
17 import dwt.layout.GridLayout; | |
18 import dwt.layout.GridData; | |
19 | |
20 import dwtx.jface.window.ApplicationWindow; | |
21 | |
22 import dwtx.jface.viewers.Viewer; | |
23 import dwtx.jface.viewers.TreeViewer; | |
24 import dwtx.jface.viewers.ITreeContentProvider; | |
25 import dwtx.jface.viewers.ILabelProvider; | |
26 import dwtx.jface.viewers.ILabelProviderListener; | |
27 import dwtx.jface.viewers.LabelProviderChangedEvent; | |
28 | |
67 | 29 version(JIVE) import jive.stacktrace; |
62 | 30 |
31 import dwt.dwthelper.utils; | |
32 import dwt.dwthelper.ByteArrayInputStream; | |
33 | |
34 //------------------------------------ | |
35 //import dwt.dwthelper.utils; | |
36 //------------------------------------ | |
37 | |
111
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38 import tango.io.FileSystem; |
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39 import tango.io.Path; |
62 | 40 import tango.io.FilePath; |
68 | 41 import tango.util.log.Trace; |
62 | 42 |
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43 import dwtx.dwtxhelper.Collection; |
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44 import tango.text.convert.Utf; |
62 | 45 |
46 void main(){ | |
47 auto hw = new FileTree; | |
48 hw.run(); | |
49 } | |
50 | |
51 class FileTree : ApplicationWindow { | |
52 | |
53 TreeViewer tv; | |
54 | |
55 this(){ | |
56 super(null); | |
57 } | |
58 | |
59 public void run(){ | |
60 setBlockOnOpen(true); | |
61 open(); | |
62 Display.getCurrent().dispose(); | |
63 } | |
64 | |
65 protected void configureShell( Shell shell ){ | |
66 super.configureShell(shell); | |
67 shell.setText( "File Tree" ); | |
68 shell.setSize( 400, 400 ); | |
69 } | |
70 | |
71 protected Control createContents(Composite parent){ | |
72 | |
73 auto composite = new Composite( parent, DWT.NONE ); | |
74 composite.setLayout( new GridLayout(1,false)); | |
75 | |
76 // Add a checkbox to toggle whether the labels preserve case | |
77 auto preserveCase = new Button( composite, DWT.CHECK ); | |
78 preserveCase.setText( "&Preserve case" ); | |
79 | |
80 // Create the tree viewer to display the file tree | |
81 tv = new TreeViewer( composite ); | |
82 tv.getTree().setLayoutData( new GridData( GridData.FILL_BOTH )); | |
83 tv.setContentProvider( new FileTreeContentProvider()); | |
84 tv.setLabelProvider( new FileTreeLabelProvider() ); | |
85 tv.setInput( stringcast("root") ); | |
86 | |
87 // When user checks the checkbox, toggle the preserve case attribute | |
88 // of the label provider | |
89 preserveCase.addSelectionListener( new class SelectionAdapter{ | |
90 public void widgetSelected( SelectionEvent event ){ | |
91 auto preserveCase = (cast(Button)event.widget).getSelection(); | |
92 auto ftlp = cast(FileTreeLabelProvider) tv.getLabelProvider(); | |
93 ftlp.setPreserveCase(preserveCase); | |
94 } | |
95 }); | |
96 return composite; | |
97 } | |
98 } | |
99 | |
100 class FileTreeContentProvider : ITreeContentProvider { | |
101 public override Object[] getChildren( Object arg0 ){ | |
69 | 102 auto fp = cast(FilePath)arg0; |
62 | 103 try{ |
69 | 104 if( !fp.isFolder() ){ |
105 return null; | |
106 } | |
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107 Object[] res; |
69 | 108 foreach( item; fp ){ |
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109 res ~= FilePath.from( item ); |
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110 } |
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111 return res; |
62 | 112 } |
113 catch( Exception e ){ | |
114 return null; | |
115 } | |
116 } | |
117 | |
118 public override Object getParent(Object arg0 ){ | |
119 auto fp = cast(FilePath)arg0; | |
120 return fp.pop; | |
121 } | |
122 | |
123 public override bool hasChildren(Object arg0 ){ | |
124 auto obj = getChildren(arg0); | |
125 return obj is null ? false : obj.length > 0; | |
126 } | |
127 | |
128 public override Object[] getElements( Object arg0 ){ | |
129 Object[] res; | |
63 | 130 |
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131 foreach( root; FileSystem.roots()){ |
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132 // ignore floppy drives, they bring up strange error messages |
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133 if( root == `A:\`|| root == `B:\` ){ |
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134 continue; |
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135 } |
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136 res ~= new FilePath( tango.io.Path.standard( root )); |
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137 } |
62 | 138 return res; |
139 } | |
140 | |
141 public override void dispose(){ | |
142 } | |
143 | |
144 public override void inputChanged(Viewer arg0, Object arg1, Object arg2 ){ | |
145 } | |
146 | |
147 } | |
148 | |
149 class FileTreeLabelProvider : ILabelProvider { | |
150 | |
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151 private ArrayList listeners; |
62 | 152 |
153 private Image file; | |
154 private Image dir; | |
155 | |
156 private bool preserveCase; | |
157 | |
158 public this(){ | |
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159 listeners = new ArrayList(); |
62 | 160 |
161 file = new Image( null, new ImageData( new ByteArrayInputStream( cast(byte[])import( "file.png" )))); | |
162 dir = new Image( null, new ImageData( new ByteArrayInputStream( cast(byte[])import( "folder.png" )))); | |
163 } | |
164 | |
165 public void setPreserveCase(bool preserveCase){ | |
166 this.preserveCase = preserveCase; | |
167 auto event = new LabelProviderChangedEvent(this); | |
168 for( int i = 0, n = listeners.size(); i < n; i++ ){ | |
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169 auto ilpl = cast(ILabelProviderListener)listeners.get(i); |
62 | 170 ilpl.labelProviderChanged(event); |
171 } | |
172 } | |
173 | |
174 public override Image getImage(Object arg0){ | |
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175 auto fp = cast(FilePath)arg0; |
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176 // is a root |
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177 if( fp.name.length is 0 ){ |
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178 return dir; |
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179 } |
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180 return fp.isFolder() ? dir : file; |
62 | 181 } |
182 | |
183 public override char[] getText(Object arg0){ | |
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184 auto fp = cast(FilePath)arg0; |
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185 auto text = fp.name(); |
70 | 186 if( text.length is 0 ){ |
187 // now take all info, it will be drive or the root folder | |
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188 text = fp.toString(); |
70 | 189 } |
190 return preserveCase ? text : text.toUpperCase(); | |
62 | 191 } |
192 | |
193 public void addListener( ILabelProviderListener arg0 ){ | |
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194 listeners.add(cast(Object)arg0); |
62 | 195 } |
196 | |
197 public void dispose(){ | |
198 if( dir !is null ) dir.dispose(); | |
199 if( file !is null ) file.dispose(); | |
200 } | |
201 | |
202 public bool isLabelProperty(Object arg0, char[] arg1){ | |
203 return false; | |
204 } | |
205 | |
206 public void removeListener(ILabelProviderListener arg0){ | |
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207 listeners.remove(cast(Object)arg0); |
62 | 208 } |
209 } | |
210 | |
211 | |
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216 | |
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