bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/widgets/FileOrDirectorySelectionWidget.java

   1 package org.simantics.utils.ui.widgets;\r
   2 \r
   3 import java.io.File;\r
   4 import java.util.ArrayList;\r
   5 import java.util.List;\r
   6 \r
   7 import org.eclipse.jface.layout.GridDataFactory;\r
   8 import org.eclipse.swt.SWT;\r
   9 import org.eclipse.swt.events.ModifyEvent;\r
  10 import org.eclipse.swt.events.ModifyListener;\r
  11 import org.eclipse.swt.events.SelectionAdapter;\r
  12 import org.eclipse.swt.events.SelectionEvent;\r
  13 import org.eclipse.swt.layout.GridData;\r
  14 import org.eclipse.swt.layout.GridLayout;\r
  15 import org.eclipse.swt.widgets.Button;\r
  16 import org.eclipse.swt.widgets.Composite;\r
  17 import org.eclipse.swt.widgets.Group;\r
  18 import org.eclipse.swt.widgets.Text;\r
  19 \r
  20 public abstract class FileOrDirectorySelectionWidget extends Composite{\r
  21         \r
  22         Text fileText;\r
  23         String filename[];\r
  24         \r
  25         private List<FileSelectionListener> listeners = new ArrayList<FileSelectionListener>();\r
  26         \r
  27         public FileOrDirectorySelectionWidget(Composite parent, String name,int style) {\r
  28                 super(parent, style);\r
  29                 this.setLayout(new GridLayout(1,false));\r
  30                 GridDataFactory.fillDefaults().grab(true, false).align(SWT.FILL, SWT.TOP).applyTo(this);\r
  31                 \r
  32                 Group fileGroup = new Group(this, SWT.NONE);\r
  33                 GridDataFactory.fillDefaults().grab(true, false).align(SWT.FILL, SWT.TOP).applyTo(fileGroup);\r
  34                 \r
  35                 fileGroup.setText(name);\r
  36                 fileGroup.setLayout(new GridLayout(2, false));\r
  37                 \r
  38                 fileText = new Text(fileGroup, SWT.SINGLE|SWT.BORDER);\r
  39                 GridData data = new GridData();\r
  40                 data.grabExcessHorizontalSpace = true;\r
  41                 data.horizontalAlignment = SWT.FILL;\r
  42                 fileText.setLayoutData(data);\r
  43                 \r
  44                 Button browseButton = new Button(fileGroup, SWT.PUSH);\r
  45                 browseButton.setText("Browse");\r
  46                 data = new GridData();\r
  47                 browseButton.setLayoutData(data);\r
  48                 \r
  49                 \r
  50                                 \r
  51                 browseButton.addSelectionListener(new SelectionAdapter() {\r
  52                         @Override\r
  53                         public void widgetSelected(SelectionEvent e) {\r
  54                                 String[] name = openDialog();\r
  55                                 if (name != null) {\r
  56                                         setFilename(name);\r
  57                                 }\r
  58                         }\r
  59                 });\r
  60                 \r
  61                 fileText.addModifyListener(new ModifyListener() {\r
  62                         \r
  63                         @Override\r
  64                         public void modifyText(ModifyEvent e) {\r
  65                                 String file = fileText.getText();\r
  66                                 setFilename(file.split(","));\r
  67                                 \r
  68                         }\r
  69                 });\r
  70         }\r
  71         \r
  72         protected abstract String[] openDialog();\r
  73         \r
  74         protected abstract boolean isValid(File file);\r
  75         \r
  76         protected void setFilename(String[] filename) {\r
  77                 String text = "";\r
  78                 for (String s : filename) {\r
  79                         text += s + ",";\r
  80                 }\r
  81                 if (text.length() > 2)\r
  82                         text = text.substring(0, text.length() - 1);\r
  83                 \r
  84                 if (!text.equals(fileText.getText()))\r
  85                         fileText.setText(text);\r
  86                 \r
  87                 boolean accept = true;\r
  88                 for (String s : filename){\r
  89                         File file = new File(s);\r
  90                         if (!isValid(file)) {\r
  91                                 accept = false;\r
  92                                 break;\r
  93                         }\r
  94                 }\r
  95                 if (accept)\r
  96                         this.filename = filename;\r
  97                 else\r
  98                         this.filename = null;\r
  99                 \r
 100                 for (FileSelectionListener l : listeners) {\r
 101                         l.fileSelected(this, this.filename);\r
 102                 }\r
 103         }\r
 104         \r
 105         public String[] getFilename() {\r
 106                 return filename;\r
 107         }\r
 108         \r
 109         public void addListener(FileSelectionListener listener) {\r
 110                 this.listeners.add(listener);\r
 111         }\r
 112         \r
 113         public void removeListener(FileSelectionListener listener) {\r
 114                 this.listeners.remove(listener);\r
 115         }\r
 116         \r
 117 \r
 118 }\r