-comments on imagezoomer

recalculateGrid Alwin please fill in the blank

5 files changed, 56 insertions, 8 deletions

diff --git a/noncore/graphics/opie-eye/gui/iconview.cpp b/noncore/graphics/opie-eye/gui/iconview.cpp
index a06844a..e61f9d9 100644
--- a/noncore/graphics/opie-eye/gui/iconview.cpp
+++ b/noncore/graphics/opie-eye/gui/iconview.cpp
@@ -1,491 +1,503 @@
 /*
  * GPLv2 zecke@handhelds.org
  * No WArranty...
  */
 
 #include "iconview.h"
 
 #include <lib/imagecache.h>
 #include <gui/imageinfoui.h>
 #include <gui/imagescrollview.h>
 
 #include <iface/dirview.h>
 #include <iface/dirlister.h>
 
 #include <opie2/oconfig.h>
 #include <opie2/okeyconfigwidget.h>
 #include <opie2/odebug.h>
 
 #include <qpe/resource.h>
 #include <qpe/qpemessagebox.h>
 #include <qpe/ir.h>
 #include <qpe/qcopenvelope_qws.h>
 #include <qpe/qpeapplication.h>
 
 #include <qiconview.h>
 #include <qlabel.h>
 #include <qhbox.h>
 #include <qcombobox.h>
 #include <qdir.h>
 #include <qapplication.h>
 #include <qmainwindow.h>
 #include <qtimer.h>
 #include <qstyle.h>
 
 
 using Opie::Core::OKeyConfigItem;
 
 /*
  * The Icons, Request Cache and IconViewItem for the IconView
  */
 namespace {
     static QPixmap* _dirPix = 0;
     static QPixmap* _unkPix = 0;
     static QPixmap* _picPix = 0;
     class IconViewItem : public QIconViewItem {
     public:
         IconViewItem( QIconView*, const QString& path, const QString& name, bool isDir = false);
         QPixmap* pixmap()const;
         QString path()const { return m_path; }
         bool isDir()const { return m_isDir; }
         void setText( const QString& );
 
     protected:
         mutable QPixmap* m_pix;
 
     private:
         QString m_path;
         bool m_isDir : 1;
         bool m_noInfo :1;
     };
     class TextViewItem : public IconViewItem {
         TextViewItem( QIconView*, const QString& path, const QString& name, bool isDir = false );
         QPixmap *pixmap()const;
         void setText( const QString& );
     };
     class ThumbViewItem : public IconViewItem {
         ThumbViewItem( QIconView*, const QString& path, const QString& name, bool isDir = false );
         QPixmap *pixmap()const;
         void setText( const QString& );
     };
 
 
 /*
  * If we request an Image or String
  * we add it to the map
  */
     static QMap<QString, IconViewItem*> g_stringInf;
     static QMap<QString, IconViewItem*> g_stringPix;
 
     IconViewItem::IconViewItem( QIconView* view,const QString& path,
                                 const QString& name, bool isDir )
         : QIconViewItem( view, name ), m_path( path ), m_isDir( isDir ),
           m_noInfo( false )
     {
         if ( isDir && !_dirPix )
             _dirPix = new QPixmap( Resource::loadPixmap("advancedfm/FileBrowser"));
         else if ( !isDir && !_unkPix )
             _unkPix = new QPixmap( Resource::loadPixmap( "UnknownDocument" ) );
     }
     inline QPixmap* IconViewItem::pixmap()const {
 //      qWarning(  "Name is " + m_path.right( 15 ) + " rect is %d %d %d %d | %d %d",
 //                 rect().x(),rect().y(),rect().width(),rect().height(),
 //                 iconView()->contentsX(), iconView()->contentsY());
 
         if ( m_isDir )
             return _dirPix;
         else{
             if (!m_noInfo && !g_stringInf.contains( m_path ) ) {
                 currentView()->dirLister()->imageInfo( m_path );
                 g_stringInf.insert( m_path, const_cast<IconViewItem*>(this));
             }
 
             m_pix = PPixmapCache::self()->cachedImage( m_path, 64, 64 );
             if ( !m_pix && !g_stringPix.contains( m_path )) {
                 currentView()->dirLister()->thumbNail( m_path, 64, 64 );
                 g_stringPix.insert( m_path, const_cast<IconViewItem*>(this));
             }
             return m_pix ? m_pix : _unkPix;
         }
     }
     inline void IconViewItem::setText( const QString& str ) {
         QString text = QIconViewItem::text()+"\n"+str;
         m_noInfo = true;
         QIconViewItem::setText( text );
     }
 }
 
 
 /*
  * Set up the GUI.. initialize the slave set up gui
  * and also load a dir
  */
 PIconView::PIconView( QWidget* wid, Opie::Core::OConfig* cfg )
     : QVBox( wid ), m_cfg( cfg ), m_updatet( false )
 {
     {
         QCopEnvelope( "QPE/Application/opie-eye_slave", "refUp()" );
     }
     m_path = QDir::homeDirPath();
     m_mode = 0;
 
     QHBox *hbox = new QHBox( this );
     QLabel* lbl = new QLabel( hbox );
     lbl->setText(  tr("View as" ) );
 
     m_views = new QComboBox( hbox, "View As" );
     connect( m_views, SIGNAL(activated(int)),
              this, SLOT(slotViewChanged(int)) );
 
     m_view= new QIconView( this );
     connect(m_view, SIGNAL(clicked(QIconViewItem*) ),
             this, SLOT(slotClicked(QIconViewItem*)) );
     connect(m_view, SIGNAL(returnPressed(QIconViewItem*)),
             this, SLOT(slotClicked(QIconViewItem*)) );
 
     m_view->setArrangement( QIconView::LeftToRight );
     m_view->setItemTextPos( QIconView::Right );
 
     int dw = QApplication::desktop()->width();
     int viewerWidth = dw-style().scrollBarExtent().width();
     m_view->setGridX( viewerWidth-3*m_view->spacing());
     m_view->setGridY( fontMetrics().height()*2+40 );
 
 
     initKeys();
 
     loadViews();
     slotViewChanged(  m_views->currentItem() );
 }
 
 /*
  * Unref the slave and save the keyboard manager
  */
 PIconView::~PIconView() {
     {
         QCopEnvelope( "QPE/Application/opie-eye_slave", "refDown()" );
     }
     m_viewManager->save();
     delete m_viewManager;
 }
 
 Opie::Core::OKeyConfigManager* PIconView::manager() {
     return m_viewManager;
 }
 
 
 /*
  * init the KeyBoard Shortcuts
  * called from the c'tor
  */
 void PIconView::initKeys() {
     Opie::Core::OKeyPair::List lst;
     lst.append( Opie::Core::OKeyPair::upArrowKey() );
     lst.append( Opie::Core::OKeyPair::downArrowKey() );
     lst.append( Opie::Core::OKeyPair::leftArrowKey() );
     lst.append( Opie::Core::OKeyPair::rightArrowKey() );
     lst.append( Opie::Core::OKeyPair::returnKey() );
 
     m_viewManager = new Opie::Core::OKeyConfigManager(m_cfg, "View-KeyBoard-Config",
                                                     lst, false,this, "keyconfig name" );
     m_viewManager->addKeyConfig( OKeyConfigItem(tr("Beam Current Item") , "beam",
                                                 Resource::loadPixmap("beam"), BeamItem,
                                                 Opie::Core::OKeyPair(Qt::Key_B, Qt::ShiftButton),
                                                 this, SLOT(slotBeam())) );
     m_viewManager->addKeyConfig( OKeyConfigItem(tr("Delete Current Item"), "delete",
                                                 Resource::loadPixmap("trash"), DeleteItem,
                                                 Opie::Core::OKeyPair(Qt::Key_D, Qt::ShiftButton),
                                                 this, SLOT(slotTrash())) );
     m_viewManager->addKeyConfig( OKeyConfigItem(tr("View Current Item"), "view",
                                                 Resource::loadPixmap("1to1"), ViewItem,
                                                 Opie::Core::OKeyPair(Qt::Key_V, Qt::ShiftButton),
                                                 this, SLOT(slotShowImage())));
     m_viewManager->addKeyConfig( OKeyConfigItem(tr("Show Image Info") , "info",
                                                 Resource::loadPixmap("DocumentTypeWord"), InfoItem,
                                                 Opie::Core::OKeyPair(Qt::Key_I, Qt::ShiftButton ),
                                                 this, SLOT(slotImageInfo()) ) );
     m_viewManager->load();
     m_viewManager->handleWidget( m_view );
 }
 
 
 /*
  * change one dir up
  */
 void PIconView::slotDirUp() {
     QDir dir( m_path );
     dir.cdUp();
     slotChangeDir( dir.absPath() );
 }
 
 /*
  * change the dir
  */
 void PIconView::slotChangeDir(const QString& path) {
     if ( !currentView() )
         return;
 
     PDirLister *lister = currentView()->dirLister();
     if (!lister )
         return;
 
     /*
      * Say what we want and take what we get
      */
     lister->setStartPath(  path );
     m_path = lister->currentPath();
 
     m_view->viewport()->setUpdatesEnabled( false );
     m_view->clear();
 
     /*
      * add files and folders
      */
     addFolders( lister->folders() );
     addFiles( lister->files() );
     m_view->viewport()->setUpdatesEnabled( true );
 
     // Also invalidate the cache. We can't cancel the operations anyway
     g_stringPix.clear();
     g_stringInf.clear();
 
     // looks ugly
     static_cast<QMainWindow*>(parent())->setCaption( QObject::tr("%1 - O View", "Name of the dir").arg( m_path ) );
 }
 
 /**
  * get the current file name
  * @param isDir see if this is a dir or real file
  */
 QString PIconView::currentFileName(bool &isDir)const {
     isDir = false;
     QIconViewItem* _it = m_view->currentItem();
     if ( !_it )
         return QString::null;
 
     IconViewItem* it = static_cast<IconViewItem*>( _it );
     isDir = it->isDir();
     return it->path();
 }
 
 void PIconView::slotTrash() {
     bool isDir;
     QString pa = currentFileName( isDir );
     if ( isDir && pa.isEmpty() )
         return;
 
     if (!QPEMessageBox::confirmDelete( this,
                                       tr("Delete Image" ),
                                       tr("the Image %1" ).arg(pa)))
         return
 
 
     currentView()->dirLister()->deleteImage( pa );
     delete m_view->currentItem();
 }
 
 /*
  * see what views are available
  */
 void PIconView::loadViews() {
     ViewMap::Iterator it;
     ViewMap* map = viewMap();
     for ( it = map->begin(); it != map->end(); ++it )
         m_views->insertItem(  QObject::tr(it.key() ) );
 }
 
 void PIconView::resetView() {
     slotViewChanged(m_views->currentItem());
 }
 
 /*
  *swicth view reloadDir and connect signals
  */
 void PIconView::slotViewChanged( int i) {
     if (!m_views->count() ) {
         setCurrentView( 0l);
         return;
     }
 
     PDirView* cur = currentView();
     delete cur;
     QString str = m_views->text(i);
     cur = (*(*viewMap())[str])(*m_cfg);
     setCurrentView( cur );
 
     /* connect to the signals of the lister */
     PDirLister* lis = cur->dirLister();
     connect(lis, SIGNAL(sig_thumbInfo(const QString&, const QString& )),
             this, SLOT( slotThumbInfo(const QString&, const QString&)));
     connect(lis, SIGNAL( sig_thumbNail(const QString&, const QPixmap&)),
             this, SLOT(slotThumbNail(const QString&, const QPixmap&)));
     connect(lis, SIGNAL(sig_start()),
             this, SLOT(slotStart()));
     connect(lis, SIGNAL(sig_end()) ,
             this, SLOT(slotEnd()) );
 
 
     /*  reload now */
     QTimer::singleShot( 0,  this, SLOT(slotReloadDir()));
 }
 
 
 void PIconView::slotReloadDir() {
     slotChangeDir( m_path );
 }
 
 
 /*
  * add files and folders
  */
 void PIconView::addFolders(  const QStringList& lst) {
     QStringList::ConstIterator it;
 
     for(it=lst.begin(); it != lst.end(); ++it )
         (void)new IconViewItem( m_view, m_path+"/"+(*it), (*it), true );
 
 
 }
 
 void PIconView::addFiles(  const QStringList& lst) {
     QStringList::ConstIterator it;
     for (it=lst.begin(); it!= lst.end(); ++it )
         (void)new IconViewItem( m_view, m_path+"/"+(*it), (*it) );
 
 }
 
 /*
  * user clicked on the item. Change dir or view
  */
 void PIconView::slotClicked(QIconViewItem* _it) {
     if(!_it )
         return;
 
     IconViewItem* it = static_cast<IconViewItem*>(_it);
     if( it->isDir() )
         slotChangeDir( it->path() );
     else // view image
         slotShowImage();
 }
 
 /*
  * got thumb info add to the cache if items is visible
  * we later need update after processing of slave is done
  */
 void PIconView::slotThumbInfo( const QString& _path, const QString& str ) {
     IconViewItem* item = g_stringInf[_path];
     if (!item )
         return;
 
     if ( item->intersects(QRect( m_view->contentsX(),m_view->contentsY(),
                                  m_view->contentsWidth(), m_view->contentsHeight() ) ) )
         m_updatet = true;
 
     item->setText( str );
     g_stringInf.remove( _path );
 }
 
 /*
  * got thumbnail and see if it is visible so we need to update later
  */
 void PIconView::slotThumbNail(const QString& _path, const QPixmap &pix) {
     IconViewItem* item = g_stringPix[_path];
     if (!item )
         return;
 
     if ( item->intersects(QRect( m_view->contentsX(),m_view->contentsY(),
                                  m_view->contentsWidth(), m_view->contentsHeight() ) ) )
         m_updatet = true;
 
     if (pix.width()>0)
         PPixmapCache::self()->insertImage( _path, pix, 64, 64 );
 
 
     g_stringPix.remove( _path );
 }
 
 
 /*
  * FIXME rename
  */
 void PIconView::slotRename() {
 
 }
 
 
 /*
  * BEAM the current file
  */
 void PIconView::slotBeam() {
     bool isDir;
     QString pa = currentFileName( isDir );
     if ( isDir && pa.isEmpty() )
         return;
 
     Ir* ir = new Ir( this );
     connect( ir, SIGNAL(done(Ir*)),
              this, SLOT(slotBeamDone(Ir*)));
     ir->send(pa, tr( "Image" ) );
 }
 
 /*
  * BEAM done clean up
  */
 void PIconView::slotBeamDone( Ir* ir) {
     delete ir;
 }
 
 void PIconView::slotStart() {
     m_view->viewport()->setUpdatesEnabled( false );
 }
 
 void PIconView::slotEnd() {
     if ( m_updatet )
         m_view->arrangeItemsInGrid( );
     m_view->viewport()->setUpdatesEnabled( true );
     m_updatet = false;
 }
 
 void PIconView::slotShowImage()
 {
     bool isDir = false;
     QString name = currentFileName(isDir);
     if (isDir) return;
 
     slotShowImage( name );
 }
 void PIconView::slotShowImage( const QString& name) {
     emit sig_display( name );
 }
 void PIconView::slotImageInfo() {
     bool isDir = false;
     QString name = currentFileName(isDir);
     if (isDir) return;
 
     slotImageInfo( name );
 }
 
 void PIconView::slotImageInfo( const QString& name) {
      emit sig_showInfo( name );
 }
 
 
 void PIconView::slotChangeMode( int mode ) {
-    if ( mode >= 0 && mode <= 3 )
+    if ( mode >= 1 && mode <= 3 )
         m_mode = mode;
 
     QIconView::ItemTextPos pos;
     switch( m_mode ) {
-    case 1:
+    case 2:
         pos = QIconView::Bottom;
         break;
-    case 2:
-    case 0:
+    case 3:
+    case 1:
     default:
         pos = QIconView::Right;
         break;
     }
     m_view->setItemTextPos( pos );
 
+    calculateGrid();
     slotReloadDir();
 }
+
+
+void PIconView::resizeEvent( QResizeEvent* re ) {
+    QVBox::resizeEvent( re );
+    calculateGrid();
+}
+
+
+void PIconView::calculateGrid() {
+
+}
diff --git a/noncore/graphics/opie-eye/gui/iconview.h b/noncore/graphics/opie-eye/gui/iconview.h
index af41aef..903c4fd 100644
--- a/noncore/graphics/opie-eye/gui/iconview.h
+++ b/noncore/graphics/opie-eye/gui/iconview.h
@@ -1,85 +1,89 @@
 /*
  * GPLv2 zecke@handhelds.org
  * No WArranty...
  */
 
 #ifndef PHUNK_ICON_VIEW_H
 #define PHUNK_ICON_VIEW_H
 
 #include <qvbox.h>
 
 
 class QIconView;
 class QIconViewItem;
 class QComboBox;
 class PIconViewItem;
 class PDirLister;
 class Ir;
 
 namespace Opie {
 namespace Core{
     class OConfig;
     class OKeyConfigManager;
 }
 }
 
 class PIconView : public QVBox {
     Q_OBJECT
     friend class PIconViewItem;
     enum ActionIds {
         BeamItem, DeleteItem, ViewItem, InfoItem
     };
 public:
     PIconView( QWidget* wid, Opie::Core::OConfig *cfg );
     ~PIconView();
     void resetView();
     Opie::Core::OKeyConfigManager* manager();
 
 signals:
     void sig_showInfo( const QString& );
     void sig_display( const QString& );
 
+protected:
+    void resizeEvent( QResizeEvent* );
+
 private:
     void initKeys();
     QString currentFileName(bool &isDir)const;
     void loadViews();
+    void calculateGrid();
 
 private slots:
     void slotDirUp();
     void slotChangeDir(const QString&);
     void slotTrash();
     void slotViewChanged( int );
     void slotReloadDir();
     void slotRename();
     void slotBeam();
     void slotBeamDone( Ir* );
 
     void slotShowImage();
     void slotShowImage( const QString& );
     void slotImageInfo();
     void slotImageInfo( const QString& );
 
     void slotStart();
     void slotEnd();
 
 /* for performance reasons make it inline in the future */
     void addFolders(  const QStringList& );
     void addFiles( const QStringList& );
     void slotClicked(QIconViewItem* );
 
 /**/
     void slotThumbInfo(const QString&, const QString&);
     void slotThumbNail(const QString&, const QPixmap&);
 
     void  slotChangeMode( int );
 private:
     Opie::Core::OKeyConfigManager *m_viewManager;
     Opie::Core::OConfig *m_cfg;
     QComboBox* m_views;
     QIconView* m_view;
     QString m_path;
     bool m_updatet : 1;
     int m_mode;
 };
 
 #endif
diff --git a/noncore/graphics/opie-eye/gui/viewmodebutton.cpp b/noncore/graphics/opie-eye/gui/viewmodebutton.cpp
index fdf4e77..0e4a7cb 100644
--- a/noncore/graphics/opie-eye/gui/viewmodebutton.cpp
+++ b/noncore/graphics/opie-eye/gui/viewmodebutton.cpp
@@ -1,24 +1,45 @@
 #include "viewmodebutton.h"
 
+#include <opie2/odebug.h>
+
 #include <qtoolbar.h>
 #include <qpopupmenu.h>
 
 ViewModeButton::ViewModeButton( QToolBar* bar )
     : QToolButton( bar )
 {
-    setIconSet( Resource::loadIconSet( "toys" ) );
+    slotChange( 1 );
     QPopupMenu *pop= new QPopupMenu( this );
     pop->setCheckable( true );
-    pop->insertItem( tr("Thumbnail and Imageinfo"), 0 );
-    pop->insertItem( tr("Thumbnail and Name" ), 1 );
-    pop->insertItem( tr("Name Only" ), 2 );
+    pop->insertItem( tr("Thumbnail and Imageinfo"), 1 );
+    pop->insertItem( tr("Thumbnail and Name" ), 2 );
+    pop->insertItem( tr("Name Only" ), 3 );
     connect(pop, SIGNAL(activated(int)),
             this, SIGNAL(changeMode(int)) );
+    connect(pop, SIGNAL(activated(int)),
+            this, SLOT(slotChange(int)) );
 
 
     setPopup( pop );
 }
 
 ViewModeButton::~ViewModeButton() {
+}
+
+void ViewModeButton::slotChange( int i ) {
+    QString name;
+    switch( i ) {
+    case 1:
+        name = "opie-eye/opie-eye-thumb";
+        break;
+    case 2:
+        name = "opie-eye/opie-eye-thumbonly";
+        break;
+    case 3:
+        name = "opie-eye/opie-eye-textview";
+        break;
+    }
 
+    qWarning("foo %d" +name, i );
+    setIconSet( Resource::loadIconSet( name ) );
 }
diff --git a/noncore/graphics/opie-eye/gui/viewmodebutton.h b/noncore/graphics/opie-eye/gui/viewmodebutton.h
index 44f2228..3247114 100644
--- a/noncore/graphics/opie-eye/gui/viewmodebutton.h
+++ b/noncore/graphics/opie-eye/gui/viewmodebutton.h
@@ -1,23 +1,25 @@
 /*
  * GPLv2 only
  * zecke@handhelds.org
  */
 
 #ifndef PHUNK_VIEW_MODE_BUTTON_H
 #define PHUNK_VIEW_MODE_BUTTON_H
 
 #include <qpe/resource.h>
 
 #include <qtoolbutton.h>
 
 class ViewModeButton : public QToolButton {
     Q_OBJECT
 public:
     ViewModeButton( QToolBar* );
     ~ViewModeButton();
 
 signals:
     void changeMode( int );
+private slots:
+    void slotChange( int i );
 };
 
 #endif
diff --git a/noncore/graphics/opie-eye/lib/oimagezoomer.cpp b/noncore/graphics/opie-eye/lib/oimagezoomer.cpp
index 4df5dcc..00b93e2 100644
--- a/noncore/graphics/opie-eye/lib/oimagezoomer.cpp
+++ b/noncore/graphics/opie-eye/lib/oimagezoomer.cpp
@@ -1,210 +1,219 @@
 #include "oimagezoomer.h"
 
 #include <qimage.h>
 #include <qpixmap.h>
 #include <qpainter.h>
 #include <qrect.h>
 #include <qpoint.h>
 #include <qsize.h>
 
 namespace Opie {
 namespace MM {
 
 /**
  * \brief The most simple c'tor
  * The main c'tor. You still need to set a QPixmap/QIMage,
  *  setImageSize,setViewPortSize,setVisiblePoint
  *
  * @param parent The parent widget
  * @param name A name for this widget
  * @param fl The widget flags
  *
  */
 OImageZoomer::OImageZoomer( QWidget* parent,  const char* name,  WFlags fl )
     :  QFrame( parent, name, fl ) {
     init();
 }
 
 
 /**
  * \brief This c'tor takes a QPixmap additional
  *
  * You initially set the QPixmap but you still need to provide
  * the additional data to make this widget useful
  *
  * @param pix A Pixmap it'll be converted to a QImage later!
  * @param par The parent widget
  * @param name The name of this widget
  * @param fl The widget flags
  */
 OImageZoomer::OImageZoomer( const QPixmap& pix, QWidget* par, const char* name, WFlags fl )
     : QFrame( par, name, fl ) {
     init();
     setImage( pix );
 }
 
 
 /**
  * \brief This c'tor takes a QImage instead
  * You just provide a QImage which is saved. It behaves the same as the others.
  *
  * @param img A Image which will be used for the zoomer content
  * @param par The  parent of the widget
  * @param name The name of the widget
  * @param fl The widgets flags
  */
 OImageZoomer::OImageZoomer( const QImage& img, QWidget* par, const char* name,  WFlags fl)
     : QFrame( par, name, fl ) {
     init();
     setImage( img );
 }
 
 
 /**
  * \brief overloaded c'tor
  *
  * This differs only in the arguments it takes
  *
  *
  * @param pSize The size of the Page you show
  * @param vSize The size of the viewport. The size of the visible part of the widget
  * @param par The parent of the widget
  * @param name The name
  * @param fl The window flags
  */
 OImageZoomer::OImageZoomer( const QSize& pSize, const QSize& vSize, QWidget* par,
                             const char* name, WFlags fl )
     : QFrame( par, name, fl ), m_imgSize( pSize ),m_visSize( vSize ) {
     init();
 }
 
 /**
  * d'tor
  */
 OImageZoomer::~OImageZoomer() {
 
 }
 
 void OImageZoomer::init() {
     setFrameStyle( Panel | Sunken );
 }
 
 
 /**
  * \brief set the page/image size
  * Tell us the QSize of the Data you show to the user. We need this
  * to do the calculations
  *
  * @param size The size of the stuff you want to zoom on
  */
 void OImageZoomer::setImageSize( const QSize& size ) {
     m_imgSize = size;
     repaint();
 }
 
 /**
  * \brief Set the size of the viewport
  * Tell us the QSize of the viewport. The viewport is the part
  * of the widget which is exposed on the screen
  *
  * @param size Te size of the viewport
  *
  * @see QScrollView::viewport()
  */
 void OImageZoomer::setViewPortSize( const QSize& size ) {
     m_visSize = size;
     repaint();
 }
 
 /**
  * \brief the point in the topleft corner which is currently visible
  * Set the visible point. This most of the times relate to QScrollView::contentsX()
  * and QScrollView::contentsY()
  *
  * @see setVisiblePoint(int,int)
  */
 void OImageZoomer::setVisiblePoint( const QPoint& pt ) {
     m_visPt = pt;
     repaint();
 }
 
 
 /**
  * Set the Image. The image will be resized on resizeEvent
  * and it'll set the QPixmap background
  *
  * @param img The image will be stored internally and used as the background
  */
 void OImageZoomer::setImage( const QImage& img) {
     m_img = img;
     resizeEvent( 0 );
     repaint();
 }
 
 /**
  * overloaded function it calls the QImage version
  */
 void OImageZoomer::setImage( const QPixmap& pix) {
     setImage( pix.convertToImage() );
 }
 
 void OImageZoomer::resizeEvent( QResizeEvent* ev ) {
     QFrame::resizeEvent( ev );
     setBackgroundOrigin(  QWidget::WidgetOrigin );
     // TODO Qt3 use PalettePixmap and use size
     QPixmap pix; pix.convertFromImage( m_img.smoothScale( size().width(), size().height() ) );
     setBackgroundPixmap( pix);
 }
 
 void OImageZoomer::drawContents( QPainter* p ) {
     /*
      * if the page size
      */
     if ( m_imgSize.isEmpty() )
         return;
 
    /*
     * paint a red rect which represents the visible size
     *
     * We need to recalculate x,y and width and height of the
     * rect. So image size relates to contentRect
     *
     */
     QRect c( contentsRect() );
     p->setPen( Qt::red );
 
+    /*
+     * the contentRect is set equal to the size of the image
+     * Rect/Original = NewRectORWidth/OriginalVisibleStuff and then simply we
+     * need to add the c.y/x due usage of QFrame
+     * For x and y we use the visiblePoint
+     * For height and width we use the size of the viewport
+     * if width/height would be bigger than our widget we use this width/height
+     *
+     */
     int len = m_imgSize.width();
     int x = (c.width()*m_visPt.x())/len        + c.x();
     int w = (c.width()*m_visSize.width() )/len + c.x();
     if ( w > c.width() ) w = c.width();
 
     len = m_imgSize.height();
     int y = (c.height()*m_visPt.y() )/len          + c.y();
     int h = (c.height()*m_visSize.height() )/len + c.y();
     if ( h > c.height() ) h = c.height();
 
     p->drawRect( x, y, w, h );
 }
 
 void OImageZoomer::mousePressEvent( QMouseEvent*  ) {
     m_mouseX = m_mouseY = -1;
 }
 
 void OImageZoomer::mouseMoveEvent( QMouseEvent* ev ) {
     int mx, my;
     mx = ev->x();
     my = ev->y();
 
     if ( m_mouseX != -1 && m_mouseY != -1 ) {
         int diffx = ( mx - m_mouseX ) * m_imgSize.width() / width();
         int diffy = ( my - m_mouseY ) * m_imgSize.height() / height();
         emit zoomAreaRel( diffx, diffy );
         emit zoomArea(m_visPt.x()+diffx, m_visPt.y()+diffy );
     }
     m_mouseX = mx;
     m_mouseY = my;
 }
 
 
 }
 }