FileBrowser

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Revision as of 21:12, 2 October 2008 by AngryAnt (Talk | contribs)

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By AngryAnt.

Description

Implements a crude file browser in unity 2.0 GUI. This code uses the SelectList script.

Note that by crude I mean you might want to have a GUILayout pretty it up and at some point someone (me perhaps?) should pull the script around a bit so the file and directory representations in the lists aren't by complete path. Also the root check only works for unix environments at the moment. That should be an easy rewrite though.

This is how the browser could look:

FileBrowser.png

Component code

<csharp>public static bool FileBrowser( ref string location, ref Vector2 directoryScroll, ref Vector2 fileScroll ) {

   bool complete;
   DirectoryInfo directoryInfo;
   DirectoryInfo directorySelection;
   FileInfo fileSelection;
   int contentWidth;
   
   
   // Our return state - altered by the "Select" button
   complete = false;
   
   // Get the directory info of the current location
   fileSelection = new FileInfo( location );
   if( fileSelection.Attributes == FileAttributes.Directory )
   {
   	directoryInfo = new DirectoryInfo( location );
   }
   else
   {
   	directoryInfo = fileSelection.Directory;
   }
   
   if( location != "/" && GUI.Button( new Rect( 10, 20, 410, 20 ), "Up one level" ) )
   {
       directoryInfo = directoryInfo.Parent;
       location = directoryInfo.FullName;
   }


   // Handle the directories list
   GUILayout.BeginArea( new Rect( 10, 40, 200, 300 ) );
       GUILayout.Label( "Directories:" );
       directoryScroll = GUILayout.BeginScrollView( directoryScroll );
   	    directorySelection = BehaveLibrary.Resources.SelectList( directoryInfo.GetDirectories(), null ) as DirectoryInfo;
   	GUILayout.EndScrollView();
   GUILayout.EndArea();
   
   if( directorySelection != null )
   // If a directory was selected, jump there
   {
       location = directorySelection.FullName;
   }
   
   
   // Handle the files list
   GUILayout.BeginArea( new Rect( 220, 40, 200, 300 ) );
       GUILayout.Label( "Files:" );
       fileScroll = GUILayout.BeginScrollView( fileScroll );
       	fileSelection = BehaveLibrary.Resources.SelectList( directoryInfo.GetFiles(), null ) as FileInfo;
   	GUILayout.EndScrollView();
   GUILayout.EndArea();
   
   if( fileSelection != null )
   // If a file was selected, update our location to it
   {
       location = fileSelection.FullName;
   }


   // The manual location box and the select button
   GUILayout.BeginArea( new Rect( 10, 350, 410, 20 ) );
   GUILayout.BeginHorizontal();		
   	location = GUILayout.TextArea( location );
   	contentWidth = ( int )GUI.skin.GetStyle( "Button" ).CalcSize( new GUIContent( "Select" ) ).x;
   	if( GUILayout.Button( "Select", GUILayout.Width( contentWidth ) ) )
   	{
   		complete = true;
   	}
   GUILayout.EndHorizontal();
   GUILayout.EndArea();


   return complete;

} </csharp>

Usage

<csharp> public void FileBrowserWindow( int idx ) { if( FileBrowser( ref location, ref directoryScroll, ref fileScroll ) ) { fileBrowser = false; } }

public void OnGUI() { if( fileBrowser ) { GUI.Window( 0, new Rect( ( Screen.width - 430 ) / 2, ( Screen.height - 380 ) / 2, 430, 380 ), FileBrowserWindow, "Browse" ); return; } } </csharp>

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