thumbnail for images for 'hash', also added secret config [View] ThumbSize = 72 for specifying thumbnail size, and added cleanup for tmp dir

2 files changed, 158 insertions, 6 deletions

diff --git a/noncore/unsupported/filebrowser/filebrowser.cpp b/noncore/unsupported/filebrowser/filebrowser.cpp
index 8c01655..10e50f0 100644
--- a/noncore/unsupported/filebrowser/filebrowser.cpp
+++ b/noncore/unsupported/filebrowser/filebrowser.cpp
@@ -13,16 +13,17 @@
 **
 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
 **
 ** Contact info@trolltech.com if any conditions of this licensing are
 ** not clear to you.
 **
 **********************************************************************/
 
+
 #include "inlineedit.h"
 #include "filebrowser.h"
 #include "filePermissions.h"
 #include <qpe/resource.h>
 #include <qpe/global.h>
 #include <qpe/mimetype.h>
 #include <qpe/applnk.h>
 #include <qpe/config.h>
@@ -38,20 +39,22 @@
 #include <qpopupmenu.h>
 #include <qpe/qpemenubar.h>
 #include <qaction.h>
 #include <qstringlist.h>
 #include <qcursor.h>
 #include <qmultilineedit.h>
 #include <qfont.h>
 #include <qpainter.h>
+#include <qprogressbar.h>
 
 #include <unistd.h>
 #include <stdlib.h>
 #include <sys/stat.h>
+#include <qpe/qpeapplication.h>
 
 //
 //  FileItem
 //
 FileItem::FileItem( QListView * parent, const QFileInfo & fi )
     : QListViewItem( parent ),
       fileInfo( fi )
 {
@@ -78,20 +81,23 @@ FileItem::FileItem( QListView * parent, const QFileInfo & fi )
       pm = Resource::loadPixmap( "lockedfolder" );
   else
       pm = Resource::loadPixmap( "folder" );
     }
     else if( !fi.isReadable() )
   pm = Resource::loadPixmap( "locked" );
     else if( isLib() )
   pm = Resource::loadPixmap( "library" );
+    else if( ((FileView* )parent)->getShowThumbnails() && mt.id().contains(QRegExp("^image/", FALSE, FALSE)) )
+      pm = drawThumbnail(fi);
     else
   pm = mt.pixmap();
     if ( pm.isNull() )
   pm = Resource::loadPixmap("UnknownDocument-14");
+
    if( fi.isSymLink() ){
     // overlay link image
     QPixmap lnk = Resource::loadPixmap( "filebrowser/symlink" );
     QPainter painter( &pm );
     painter.drawPixmap( pm.width()-lnk.width(), pm.height()-lnk.height(), lnk );
         pm.setMask( pm.createHeuristicMask( FALSE ) );
     }
     setPixmap(0,pm);
@@ -167,28 +173,80 @@ bool FileItem::rename( const QString & name )
     newpath = fileInfo.dirPath() + "/" + name;
 
     if ( ::rename( (const char *) oldpath, (const char *) newpath ) != 0 )
     return FALSE;
     else
     return TRUE;
 }
 
+QPixmap FileItem::drawThumbnail(const QFileInfo &file) {
+
+  /*
+   * this thing is sloooooow, and it also doesn't load 
+   * dynamicly (like a web browser). if anyone knows how to 
+   * do that, please do!
+   */
+  QString cacheDir = "/tmp/filebrowserThumbnailCache";
+  QFileInfo cachedFile (cacheDir + file.filePath());
+
+  if (cachedFile.exists() && cachedFile.lastModified() == file.lastModified()) {
+
+    QPixmap cachedImage (cachedFile.filePath());
+    return cachedImage;
+  }
+  else {
+
+    QImage image (file.filePath());
+
+    // if inside of cache dir, don't render thumbnails! recursive error!
+    if (image.isNull() || file.filePath().contains(QRegExp("^" + cacheDir))) { 
+      DocLnk doc (file.filePath());
+      return doc.pixmap(); 
+    }
+    Config cfg("Filebrowser");
+    cfg.setGroup("View");
+    int size;
+    size =cfg.readNumEntry("ThumbSize", 72);
+    QPixmap thumb (size, size);
+
+    double scale = (double)image.height() / (double)image.width();
+    int newHeight = int(size * scale);
+    thumb.convertFromImage (image.smoothScale(size, newHeight));
+
+    if (!cachedFile.dir().exists()) {
+      QString cmd = "/bin/mkdir -p \"" + cachedFile.dirPath() +"\"";
+          system( (const char *) cmd );
+    }
+
+    if (thumb.save(cachedFile.filePath(), QPixmap::imageFormat(file.filePath()), 70)) {
+      // make thumbnail modify time the same as the image
+      QString cmd = "/bin/touch -r \"" + file.filePath() +"\" " +
+          "\"" + cachedFile.filePath() + "\"";
+          system( (const char *) cmd );
+
+    }
+
+    return thumb;
+  }
+}
+
 //
 //  FileView
 //
 FileView::FileView( const QString & dir, QWidget * parent,
           const char * name, 
-          bool hidden, bool symlinks )
+          bool hidden, bool symlinks, bool thumbnails )
     : QListView( parent, name ),
       menuTimer( this ),
       le( NULL ),
       itemToRename( NULL ),
       showHidden( hidden ),
       showSymlinks( symlinks),
+      showThumbnails( thumbnails ),
     menuKeepsOpen( FALSE )
 {
     addColumn( "Name" );
     addColumn( "Size" );
     addColumn( "Date" );
     addColumn( "Type" );
 
     setMultiSelection( TRUE );
@@ -248,35 +306,55 @@ void FileView::generateDir( const QString & dir )
 
       if( !showHidden)
     d.setFilter( QDir::Dirs | QDir::Files );
       else
     d.setFilter( QDir::Dirs | QDir::Files |QDir::Hidden | QDir::All);
 
      d.setSorting( QDir::Name | QDir::DirsFirst | QDir::IgnoreCase |  QDir::Reversed );
         
-
     const QFileInfoList * list = d.entryInfoList();
     QFileInfoListIterator it( *list );
     QFileInfo *fi;
 
+  QProgressBar *thumbProgress = 0;
+  if (showThumbnails) {
+
+    thumbProgress = new QProgressBar(it.count(), this);
+    thumbProgress->show();
+  }
+
     clear();
+
+  int fileCount = 1; // used in the thumbnail progress meter
     while( (fi = it.current()) ){
         if( (fi->fileName() == ".") || (fi->fileName() == "..") ){
       ++it;
       continue;
     }
   if(!showSymlinks && fi->isSymLink()){
     ++it;
     continue;
   }
+    // thumbnail progress
+    if (showThumbnails) {
+
+      thumbProgress->setProgress(fileCount);
+    }
    (void) new FileItem( (QListView *) this, *fi );
+
     ++it;
+    ++fileCount;
+  }
+
+  if (showThumbnails) { 
+    thumbProgress->close();
     }
     emit dirChanged();
+
 }
 
 void FileView::rename()
 {
     itemToRename = (FileItem *) currentItem();
     const QPixmap * pm;
     int pmw;
 
@@ -458,16 +536,35 @@ void FileView::cut()
 
 // get the names of the files to cut
     FileItem * item;
  
     if((item = (FileItem *) firstChild()) == 0) return;
  
     flist.clear();
     while( item ){
+        if( ite
+    // ##### a better inmplementation might be to rename the CUT file

+    // ##### to ".QPE-FILEBROWSER-MOVING" rather than copying it.

+    QString cmd, dest, basename, cd = "/tmp/qpemoving";

+  QStringList newflist;

+  newflist.clear();

+  

+  cmd = "rm -rf " + cd;

+  system ( (const char *) cmd );

+  cmd = "mkdir " + cd;

+  system( (const char *) cmd );

+

+// get the names of the files to cut

+    FileItem * item;

+ 

+    if((item = (FileItem *) firstChild()) == 0) return;

+ 

+    flist.clear();

+    while( item ){

         if( item->isSelected() /*&& !item->isDir()*/ ){
             flist += item->getFilePath();
         }
         item = (FileItem *) item->nextSibling();
     }
 
 // move these files into a tmp dir
     for ( QStringList::Iterator it = flist.begin(); it != flist.end(); ++it ) {
@@ -708,16 +805,21 @@ void FileView::setShowHidden(bool hidden)
   showHidden=hidden;
 }
 
 void FileView::setShowSymlinks(bool symlinks)
 {
   showSymlinks=symlinks;
 }
 
+void FileView::setShowThumbnails(bool thumbnails)
+{
+  showThumbnails=thumbnails;
+}
+
 void FileView::setMenuKeepsOpen(bool keepOpen)
 {
   menuKeepsOpen=keepOpen; 
 }
 
 FileBrowser::FileBrowser( QWidget * parent,
               const char * name, WFlags f ) :
     QMainWindow( parent, name, f )
@@ -731,27 +833,30 @@ FileBrowser::FileBrowser( const QString & dir, QWidget * parent,
 {
     init( dir );
 }
 
 void FileBrowser::init(const QString & dir)
 {
     setCaption( tr("File Manager") );
     setIcon( Resource::loadPixmap( "filebrowser_icon" ) );
+    connect( qApp,SIGNAL( aboutToQuit()),SLOT( cleanUp()) );
+
 
   Config cfg("Filebrowser");
   cfg.setGroup("View");
   bool showHidden=(cfg.readEntry("Hidden","FALSE") == "TRUE");
   bool showSymlinks=(cfg.readEntry("Symlinks","FALSE") == "TRUE");
+  bool showThumbnails=(cfg.readEntry("Thumbnails","FALSE") == "TRUE");
 
   cfg.setGroup("Menu"); 
   bool menuKeepsOpen=(cfg.readEntry("KeepOpen", "FALSE") == "TRUE");
   
 
-    fileView = new FileView( dir, this, 0, showHidden, showSymlinks );
+    fileView = new FileView( dir, this, 0, showHidden, showSymlinks, showThumbnails );
     fileView->setAllColumnsShowFocus( TRUE );
   fileView->setMenuKeepsOpen(menuKeepsOpen);
   
     setCentralWidget( fileView );
     setToolBarsMovable( FALSE );
 
     QPEToolBar* toolBar = new QPEToolBar( this );
     toolBar->setHorizontalStretchable( TRUE );
@@ -771,18 +876,20 @@ void FileBrowser::init(const QString & dir)
     sortMenu->insertItem( tr( "Ascending" ), this, SLOT( updateSorting() ) );
 
     sortMenu->setItemChecked( sortMenu->idAt( 5 ), TRUE );
     sortMenu->setItemChecked( sortMenu->idAt( 0 ), TRUE );
 
     viewMenu = new QPopupMenu( this);  
   viewMenu->insertItem( tr( "Hidden"), this, SLOT( updateShowHidden() ) );
   viewMenu->insertItem( tr( "Symlinks"), this, SLOT( updateShowSymlinks() ) );
+  viewMenu->insertItem( tr( "Thumbnails"), this, SLOT( updateShowThumbnails() ) );
     viewMenu->setItemChecked( viewMenu->idAt( 0 ), showHidden );
     viewMenu->setItemChecked( viewMenu->idAt( 1 ), showSymlinks );
+    viewMenu->setItemChecked( viewMenu->idAt( 2 ), showThumbnails );
 
   menuBar->insertItem( tr("View"), viewMenu );
     
     toolBar = new QPEToolBar( this );
 
     lastAction = new QAction( tr("Previous dir"), Resource::loadIconSet( "back" ),
                 QString::null, 0, this, 0 );
     connect( lastAction, SIGNAL( activated() ), fileView, SLOT( lastDir() ) );
@@ -925,17 +1032,16 @@ void FileBrowser::updateSorting()
     else
     sortType();
 }
 
 void FileView::chPerm() {
     FileItem * i;
     QStringList fl;
     QString cmd;
-    int err;
 
     if((i = (FileItem *) firstChild()) == 0) return;
 
     while( i ){
     if( i->isSelected() ){
       fl += i->getFilePath();
     }
     i = (FileItem *) i->nextSibling();
@@ -977,8 +1083,47 @@ void FileBrowser::updateShowSymlinks()
   fileView->setShowSymlinks(valShowSymlinks);
 
     Config cfg("Filebrowser");
     cfg.setGroup("View");
     cfg.writeEntry("Symlinks",valShowSymlinks?"TRUE":"FALSE");
 
   fileView->updateDir();
 }
+
+void FileBrowser::updateShowThumbnails()
+{
+  bool valShowThumbnails=viewMenu->isItemChecked( viewMenu->idAt( 2 ) );
+  valShowThumbnails=!valShowThumbnails;
+    viewMenu->setItemChecked( viewMenu->idAt( 2 ), valShowThumbnails );
+  fileView->setShowThumbnails(valShowThumbnails);
+
+    Config cfg("Filebrowser");
+    cfg.setGroup("View");
+    cfg.writeEntry("Thumbnails",valShowThumbnails?"TRUE":"FALSE");
+
+  fileView->updateDir();
+}
+
+void FileBrowser::cleanUp() {
+  QString cmdr = "rm -rf /tmp/filebrowserThumbnailCache";
+//  qDebug("exit");  
+  system(cmdr.latin1());
+}
+

+{

+  bool valShowThumbnails=viewMenu->isItemChecked( viewMenu->idAt( 2 ) );

+  valShowThumbnails=!valShowThumbnails;

+    viewMenu->setItemChecked( viewMenu->idAt( 2 ), valShowThumbnails );

+  fileView->setShowThumbnails(valShowThumbnails);

+

+    Config cfg("Filebrowser");

+    cfg.setGroup("View");

+    cfg.writeEntry("Thumbnails",valShowThumbnails?"TRUE":"FALSE");

+

+  fileView->updateDir();

+}

+

+void FileBrowser::cleanUp() {

+  QString cmdr = "rm -rf /tmp/filebrowserThumbnailCache";

+//  qDebug("exit");  

+  system(cmdr.latin1());

+}

diff --git a/noncore/unsupported/filebrowser/filebrowser.h b/noncore/unsupported/filebrowser/filebrowser.h
index 983e58e..549d463 100644
--- a/noncore/unsupported/filebrowser/filebrowser.h
+++ b/noncore/unsupported/filebrowser/filebrowser.h
@@ -40,36 +40,40 @@ public:
     bool    isDir(){ return fileInfo.isDir(); }
     bool    isExecutable(){ return fileInfo.isExecutable(); }
     bool    isLib();
     int     launch();
     bool    rename( const QString & name );
 private:
     QString sizeString( unsigned int size );
     QFileInfo fileInfo;
+  QPixmap FileItem::drawThumbnail(const QFileInfo &file);
 };
 
 
 class FileView : public QListView
 {
     Q_OBJECT
 
 public:
     FileView( const QString & dir, QWidget * parent = 0,
 			  const char * name = 0, 
 			  bool hidden = FALSE,
-			  bool symlinks = FALSE );
+        bool symlinks = FALSE,
+        bool thumbnails = FALSE );
 
     void    setDir( const QString & dir );
     QString cd(){ return currentDir; }
     QStringList history() const { return dirHistory; }
     bool showingHidden;
 
 	void setShowHidden(bool hidden);
 	void setShowSymlinks(bool symlinks);
+  void setShowThumbnails(bool thumbnails);
+  bool getShowThumbnails () const { return showThumbnails; }
 	void setMenuKeepsOpen(bool keepOpen);
 	
 public slots:
     void updateDir();
     void parentDir();
     void lastDir();
 
     void rename();
@@ -91,26 +95,26 @@ protected slots:
     void itemDblClicked( QListViewItem * i );
     void showFileMenu();
     void cancelMenuTimer();
     void selectAll(){ QListView::selectAll( TRUE ); }
     void deselectAll(){ QListView::selectAll( FALSE ); }
     void addToDocuments();
     void run();
     void endRenaming();
-
 private:
     QString     currentDir;
     QStringList dirHistory, flist;
     QTimer      menuTimer;
     InlineEdit * le;
     FileItem   * itemToRename;
     bool         selected;
     bool		showHidden;
     bool		showSymlinks;
+  bool    showThumbnails;
 	bool menuKeepsOpen;	
 
     bool copyFile( const QString & dest, const QString & src );
 
 signals:
     void dirChanged();
     void textViewActivated( QWidget * w );
     void textViewDeactivated();
@@ -143,13 +147,16 @@ private slots:
 
     void sortName();
     void sortDate();
     void sortSize();
     void sortType();
     void updateSorting();
 	void updateShowHidden();
 	void updateShowSymlinks();
+    void updateShowThumbnails();
     void updateDirMenu();
     void dirSelected( int id );
+    void cleanUp();
+    
 };
 
 #endif