add OCheckListItem

change my email address

2 files changed, 213 insertions, 11 deletions

diff --git a/libopie2/opieui/olistview.cpp b/libopie2/opieui/olistview.cpp
index 84617f8..0ee2fde 100644
--- a/libopie2/opieui/olistview.cpp
+++ b/libopie2/opieui/olistview.cpp
@@ -1,35 +1,35 @@
 /*
                              This file is part of the Opie Project
-              =.             (C) 2003 Michael 'Mickey' Lauer <mickey@Vanille.de>
+              =.             (C) 2003-2004 Michael 'Mickey' Lauer <mickey@Vanille.de>
             .=l.
            .>+-=
  _;:,     .>    :=|.         This program is free software; you can
 .> <`_,   >  .   <=          redistribute it and/or  modify it under
 :`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
 .="- .-=="i,     .._         License as published by the Free Software
  - .   .-<_>     .<>         Foundation; either version 2 of the License,
      ._= =}       :          or (at your option) any later version.
     .%`+i>       _;_.
     .i_,=:_.      -<s.       This program is distributed in the hope that
      +  .  -:.       =       it will be useful,  but WITHOUT ANY WARRANTY;
     : ..    .:,     . . .    without even the implied warranty of
     =_        +     =;=|`    MERCHANTABILITY or FITNESS FOR A
   _.=:.       :    :=>`:     PARTICULAR PURPOSE. See the GNU
 ..}^=.=       =       ;      Library General Public License for more
 ++=   -.     .`     .:       details.
  :     =  ...= . :.=-
  -.   .:....=;==+<;          You should have received a copy of the GNU
   -_. . .   )=.  =           Library General Public License along with
     --        :-=`           this library; see the file COPYING.LIB.
                              If not, write to the Free Software Foundation,
                              Inc., 59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
 /* QT */
 
 #include <qpixmap.h>
 
 /* OPIE */
 
@@ -145,90 +145,114 @@ void OListView::serializeTo( QDataStream& s ) const
     s << columns();
     for ( int i = 0; i < columns(); ++i )
         s << columnText( i );
 
     // calculate the number of top-level items to serialize
     int items = 0;
     QListViewItem* item = firstChild();
     while ( item )
     {
         item = item->nextSibling();
         items++;
     }
 
     // store number of items and the items itself
     s << items;
     item = firstChild();
     for ( int i = 0; i < items; ++i )
     {
         s << *static_cast<OListViewItem*>( item );
         item = item->nextSibling();
     }
 
     odebug << "OListview stored." << oendl;
 }
 
 void OListView::serializeFrom( QDataStream& s )
 {
     #warning Caution... the binary format is still under construction...
     odebug << "loading OListView..." << oendl;
 
     int cols;
     s >> cols;
-    qDebug( "read number of columns = %d", cols );
+    odebug << "read number of columns = " << cols << oendl;
 
     while ( columns() < cols ) addColumn( QString::null );
 
     for ( int i = 0; i < cols; ++i )
     {
         QString coltext;
         s >> coltext;
         qDebug( "read text '%s' for column %d", (const char*) coltext, i );
         setColumnText( i, coltext );
     }
 
     int items;
     s >> items;
-    qDebug( "read number of items = %d", items );
+    odebug << "read number of items = " << items << oendl;
 
     for ( int i = 0; i < items; ++i )
     {
         OListViewItem* item = childFactory();
         s >> *item;
     }
 
     odebug << "OListView loaded." << oendl;
 
 }
 
+
+void OListView::expand()
+{
+    odebug << "OListView::expand" << oendl;
+
+    QListViewItemIterator it( this );
+    while ( it.current() ) {
+        it.current()->setOpen( true );
+        ++it;
+    }
+}
+
+
+void OListView::collapse()
+{
+    odebug << "OListView::collapse" << oendl;
+    QListViewItemIterator it( this );
+    while ( it.current() ) {
+        it.current()->setOpen( false );
+        ++it;
+    }
+}
+
+
 QDataStream& operator<<( QDataStream& s, const OListView& lv )
 {
     lv.serializeTo( s );
 }
 
 QDataStream& operator>>( QDataStream& s, OListView& lv )
 {
     lv.serializeFrom( s );
 }
 #endif // QT_NO_DATASTREAM
 
 /*======================================================================================
  * OListViewItem
  *======================================================================================*/
 
 OListViewItem::OListViewItem(QListView *parent)
   : QListViewItem(parent)
 {
     init();
 }
 
 
 OListViewItem::OListViewItem(QListViewItem *parent)
   : QListViewItem(parent)
 {
     init();
 }
 
 
 OListViewItem::OListViewItem(QListView *parent, QListViewItem *after)
   : QListViewItem(parent, after)
 {
@@ -416,64 +440,187 @@ void OListViewItem::serializeFrom( QDataStream& s )
         qDebug( "read text '%s' for column %d", (const char*) coltext, i );
         setText( i, coltext );
     }
 
     int items;
     s >> items;
     qDebug( "read number of items = %d", items );
 
     for ( int i = 0; i < items; ++i )
     {
         OListViewItem* item = childFactory();
         s >> (*item);
     }
 
     odebug << "OListViewItem loaded." << oendl;
 }
 
 
 QDataStream& operator<<( QDataStream& s, const OListViewItem& lvi )
 {
     lvi.serializeTo( s );
 }
 
 
 QDataStream& operator>>( QDataStream& s, OListViewItem& lvi )
 {
     lvi.serializeFrom( s );
 }
 #endif // QT_NO_DATASTREAM
 
 
 /*======================================================================================
+ * OCheckListItem
+ *======================================================================================*/
+
+OCheckListItem::OCheckListItem( QCheckListItem* parent, const QString& text, Type t )
+               :QCheckListItem( parent, text, t )
+{
+    init();
+}
+
+
+OCheckListItem::OCheckListItem( QListViewItem* parent, const QString& text, Type t)
+               :QCheckListItem( parent, text, t )
+{
+    init();
+}
+
+
+OCheckListItem::OCheckListItem( QListView* parent, const QString& text, Type t )
+               :QCheckListItem( parent, text, t )
+{
+    init();
+}
+
+
+OCheckListItem::OCheckListItem( QListViewItem* parent, const QString& text, const QPixmap& p )
+               :QCheckListItem( parent, text, p )
+{
+    init();
+}
+
+
+OCheckListItem::OCheckListItem( QListView* parent, const QString& text, const QPixmap& p )
+               :QCheckListItem( parent, text, p )
+{
+    init();
+}
+
+
+OCheckListItem::~OCheckListItem()
+{
+}
+
+void OCheckListItem::init()
+{
+    m_known = false;
+}
+
+
+const QColor &OCheckListItem::backgroundColor()
+{
+    return isAlternate() ? static_cast<OListView*>(listView())->alternateBackground() :
+                           listView()->viewport()->colorGroup().base();
+}
+
+
+bool OCheckListItem::isAlternate()
+{
+    OListView *lv = static_cast<OListView*>( listView() );
+
+    // check if the item above is an OCheckListItem
+    OCheckListItem *above = static_cast<OCheckListItem*>( itemAbove() );
+    /*if (! itemAbove()->inherits( "OCheckListItem" )) return false;*/
+
+    // check if we have a valid alternate background color
+    if (!(lv && lv->alternateBackground().isValid())) return false;
+
+    m_known = above ? above->m_known : true;
+    if (m_known)
+    {
+       m_odd = above ? !above->m_odd : false;
+    }
+    else
+    {
+        OCheckListItem *item;
+        bool previous = true;
+        if (parent())
+        {
+            item = static_cast<OCheckListItem *>(parent());
+            if ( item /*&& item->inherits( "OCheckListItem" )*/ ) previous = item->m_odd;
+            item = static_cast<OCheckListItem *>(parent()->firstChild());
+            /* if ( !item.inherits( "OCheckListItem" ) item = 0; */
+        }
+        else
+        {
+            item = static_cast<OCheckListItem *>(lv->firstChild());
+        }
+
+        while(item)
+        {
+            item->m_odd = previous = !previous;
+            item->m_known = true;
+            item = static_cast<OCheckListItem *>(item->nextSibling());
+            /* if (!item.inherits( "OCheckListItem" ) ) break; */
+        }
+    }
+    return m_odd;
+}
+
+
+void OCheckListItem::paintCell(QPainter *p, const QColorGroup &cg, int column, int width, int alignment)
+{
+    QColorGroup _cg = cg;
+    const QPixmap *pm = listView()->viewport()->backgroundPixmap();
+    if (pm && !pm->isNull())
+    {
+        _cg.setBrush( QColorGroup::Base, QBrush(backgroundColor(), *pm) );
+        p->setBrushOrigin( -listView()->contentsX(), -listView()->contentsY() );
+    }
+    else if ( isAlternate() )
+    {
+        _cg.setColor( QColorGroup::Base, static_cast<OListView*>( listView() )->alternateBackground() );
+    }
+    QCheckListItem::paintCell( p, _cg, column, width, alignment );
+
+    //FIXME: Use styling here!
+
+    const QPen& pen = static_cast<OListView*>( listView() )->columnSeparator();
+    p->setPen( pen );
+    p->drawLine( width-1, 0, width-1, height() );
+}
+
+
+/*======================================================================================
  * ONamedListView
  *======================================================================================*/
 
 ONamedListView::ONamedListView( QWidget *parent, const char *name )
                :OListView( parent, name )
 {
 }
 
 
 ONamedListView::~ONamedListView()
 {
 }
 
 
 void ONamedListView::addColumns( const QStringList& columns )
 {
     for ( QStringList::ConstIterator it = columns.begin(); it != columns.end(); ++it )
     {
         qDebug( "adding column %s", (const char*) *it );
         addColumn( *it );
     }
 }
 
 
 int ONamedListView::findColumn( const QString& text ) const
 {
     //FIXME: If used excessively, this will slow down performance of updates
     //FIXME: because of the linear search over all column texts.
     //FIXME: I will optimize later by using a hash map.
     for ( int i = 0; i < columns(); ++i )
         if ( columnText( i ) == text )
             return i;
diff --git a/libopie2/opieui/olistview.h b/libopie2/opieui/olistview.h
index a00b43a..59b0973 100644
--- a/libopie2/opieui/olistview.h
+++ b/libopie2/opieui/olistview.h
@@ -1,86 +1,85 @@
 /*
                              This file is part of the Opie Project
-
-              =.             (C) 2003 Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
+              =.             (C) 2003-2004 Michael 'Mickey' Lauer <mickey@vanille.de>
             .=l.
            .>+-=
  _;:,     .>    :=|.         This program is free software; you can
 .> <`_,   >  .   <=          redistribute it and/or  modify it under
 :`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
 .="- .-=="i,     .._         License as published by the Free Software
  - .   .-<_>     .<>         Foundation; either version 2 of the License,
      ._= =}       :          or (at your option) any later version.
     .%`+i>       _;_.
     .i_,=:_.      -<s.       This program is distributed in the hope that
      +  .  -:.       =       it will be useful,  but WITHOUT ANY WARRANTY;
     : ..    .:,     . . .    without even the implied warranty of
     =_        +     =;=|`    MERCHANTABILITY or FITNESS FOR A
   _.=:.       :    :=>`:     PARTICULAR PURPOSE. See the GNU
 ..}^=.=       =       ;      Library General Public License for more
 ++=   -.     .`     .:       details.
  :     =  ...= . :.=-
  -.   .:....=;==+<;          You should have received a copy of the GNU
   -_. . .   )=.  =           Library General Public License along with
     --        :-=`           this library; see the file COPYING.LIB.
                              If not, write to the Free Software Foundation,
                              Inc., 59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
 #ifndef OLISTVIEW_H
 #define OLISTVIEW_H
 
 #include <qcolor.h>
 #include <qlistview.h>
 #include <qpen.h>
 #include <qdatastream.h>
 #include <qstringlist.h>
 
 class OListViewItem;
 
 
 /*======================================================================================
  * OListView
  *======================================================================================*/
 
 /**
  * @brief A list/tree widget.
  *
  * A @ref QListView variant featuring visual and functional enhancements
  * like an alternate background for odd rows, an autostretch mode
  * for the width of the widget ( >= Qt 3 only ) and persistence capabilities.
  *
- * @author Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
+ * @author Michael 'Mickey' Lauer <mickey@vanille.de>
  */
 class OListView: public QListView
 {
   public:
    /**
     * Constructor.
     *
     * The parameters @a parent and @a name are handled by
     * @ref QListView, as usual.
     */
     OListView( QWidget* parent = 0, const char* name = 0 );
    /**
     * Destructor.
     */
     virtual ~OListView();
    /**
     * Let the last column fit exactly all the available width.
     */
     void setFullWidth( bool fullWidth );
    /**
     * Returns whether the last column is set to fit the available width.
     */
     bool fullWidth() const;
    /**
     * Reimplemented for full width support
     */
     virtual int addColumn( const QString& label, int width = -1 );
    /**
     * Reimplemented for full width support
     */
     virtual int addColumn( const QIconSet& iconset, const QString& label, int width = -1 );
    /**
@@ -93,95 +92,106 @@ class OListView: public QListView
     * This only has an effect if the items are OListViewItems
     */
     void setAlternateBackground( const QColor& color );
    /**
     * Sets the column separator @a pen.
     */
     void setColumnSeparator( const QPen& pen );
 
    /**
     * @returns the alternate background color
     */
     const QColor& alternateBackground() const;
    /**
     * @return the column separator pen
     */
     const QPen& columnSeparator() const;
    /**
     * Create a list view item as child of this object
     * @returns the new object
     */
     virtual OListViewItem* childFactory();
 #ifndef QT_NO_DATASTREAM
    /**
     * Serialize this object to @ref QDataStream @a stream
     */
     virtual void serializeTo( QDataStream& stream ) const;
    /**
     * Serialize this object from a @ref QDataStream @a stream
     */
     virtual void serializeFrom( QDataStream& s );
 #endif
 
-protected slots:
-    /** 
+  public slots:
+    /**
+     * Expand all items
+     */
+     void expand();
+    /**
+     * Collapse all items
+     */
+     void collapse();
+
+  protected slots:
+    /**
      * expand the current OListViewItem
      */
-    void expand(QListViewItem*);    
+    void expand(QListViewItem*);
 
   private:
     QColor m_alternateBackground;
     bool m_fullWidth;
     QPen m_columnSeparator;
 };
 
 #ifndef QT_NO_DATASTREAM
 /**
   * @relates OListView
   * Writes @a listview to the @a stream and returns a reference to the stream.
   */
 QDataStream& operator<<( QDataStream& stream, const OListView& listview );
 /**
   * @relates OListView
   * Reads @a listview from the @a stream and returns a reference to the stream.
   */
 QDataStream& operator>>( QDataStream& stream, OListView& listview );
 #endif // QT_NO_DATASTREAM
 
 /*======================================================================================
  * OListViewItem
  *======================================================================================*/
 
 class OListViewItem: public QListViewItem
 {
+    friend class OCheckListItem;
   public:
     /**
      * Constructors.
      */
     OListViewItem( QListView * parent );
     OListViewItem( QListViewItem * parent );
     OListViewItem( QListView * parent, QListViewItem * after );
     OListViewItem( QListViewItem * parent, QListViewItem * after );
 
     OListViewItem( QListView * parent,
         QString,     QString = QString::null,
         QString = QString::null, QString = QString::null,
         QString = QString::null, QString = QString::null,
         QString = QString::null, QString = QString::null );
 
     OListViewItem( QListViewItem * parent,
         QString,     QString = QString::null,
         QString = QString::null, QString = QString::null,
         QString = QString::null, QString = QString::null,
         QString = QString::null, QString = QString::null );
 
     OListViewItem( QListView * parent, QListViewItem * after,
         QString,     QString = QString::null,
         QString = QString::null, QString = QString::null,
         QString = QString::null, QString = QString::null,
         QString = QString::null, QString = QString::null );
 
     OListViewItem( QListViewItem * parent, QListViewItem * after,
         QString,     QString = QString::null,
         QString = QString::null, QString = QString::null,
         QString = QString::null, QString = QString::null,
         QString = QString::null, QString = QString::null );
@@ -221,125 +231,170 @@ class OListViewItem: public QListViewItem
 
    /**
     * serialize this object to or from a @ref QDataStream
     * @param s the stream used to serialize this object.
     */
     virtual void serializeFrom( QDataStream& s );
     #endif
 
     /**
      * expand the the item
      */
     virtual void expand(){};
 
   private:
     bool m_known;
     bool m_odd;
 };
 
 #ifndef QT_NO_DATASTREAM
 /**
   * @relates QListViewItem
   * Writes listview @a item and all subitems recursively to @a stream
   * and returns a reference to the stream.
   */
 QDataStream& operator<<( QDataStream& stream, const OListViewItem& item );
 /**
   * @relates QListViewItem
   * Reads listview @a item from @a stream and returns a reference to the stream.
   */
 QDataStream& operator>>( QDataStream& stream, OListViewItem& item );
 #endif // QT_NO_DATASTREAM
 
+
+/*======================================================================================
+ * OCheckListItem
+ *======================================================================================*/
+
+class OCheckListItem : public QCheckListItem
+{
+  public:
+
+    OCheckListItem( QCheckListItem *parent, const QString &text,
+                    Type = Controller );
+    OCheckListItem( QListViewItem *parent, const QString &text,
+                    Type = Controller );
+    OCheckListItem( QListView *parent, const QString &text,
+                    Type = Controller );
+    OCheckListItem( QListViewItem *parent, const QString &text,
+                    const QPixmap & );
+    OCheckListItem( QListView *parent, const QString &text,
+                    const QPixmap & );
+    ~OCheckListItem();
+    /**
+     * @returns the background color of the list item.
+     */
+    const QColor& backgroundColor();
+    /**
+     * @returns true, if the item is at an odd position and
+     * thus have to be painted with the alternate background color.
+     */
+    bool isAlternate();
+    /**
+     * @note: Reimplemented for internal purposes - the API is not affected
+     *
+     */
+    void paintCell( QPainter *p, const QColorGroup &cg, int column, int width, int alignment );
+    /**
+     * Perform object initialization.
+     */
+    void init();
+
+  private:
+    bool m_known;
+    bool m_odd;
+};
+
+
 /*======================================================================================
  * ONamedListView
  *======================================================================================*/
 
 class ONamedListViewItem;
 
 /**
  * @brief An OListView variant with named columns.
  *
  * This class provides a higher-level interface to an OListView.
  *
- * @author Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
+ * @author Michael 'Mickey' Lauer <mickey@vanille.de>
  */
 class ONamedListView: public OListView
 {
   public:
     /**
      * Constructor.
      *
      * The parameters @a parent and @a name are handled by
      * @ref OListView, as usual.
      */
     ONamedListView( QWidget* parent = 0, const char* name = 0 );
     /**
      * Destructor.
      */
     virtual ~ONamedListView();
     /**
      * Add a number of @a columns to the listview.
      */
     virtual void addColumns( const QStringList& columns );
     /**
      * @returns the column index matching to @a text or -1 if not found.
      */
     virtual int findColumn( const QString& text ) const;
     /**
      * @returns the first item which has a @a text in column @a column.
      * Set @a recurse to indicate how much subchild levels to search, e.g.<ul>
      * <li>set it to 0 to search only among direct childs,
      * <li>set it to 1 to search direct childs and all 1st order subchilds
      * <li>set it to -1 for maximum recursion.
      * </ul>
      * @sa ONamedListViewItem::find()
      */
     virtual ONamedListViewItem* find( ONamedListViewItem* start, int column, const QString& text, int recurse = -1 ) const;
     virtual ONamedListViewItem* find( int column, const QString& text, int recurse = -1 ) const;
 
     virtual ONamedListViewItem* find( ONamedListViewItem* start, const QString& column, const QString& text, int recurse = -1 ) const;
     virtual ONamedListViewItem* find( const QString& column, const QString& text, int recurse = -1 ) const;
 };
 
 /*======================================================================================
  * ONamedListViewItem
  *======================================================================================*/
 
 /**
  * @brief An OListView variant with named columns.
  *
  * This class provides a higher-level interface to an OListViewItem.
  *
- * @author Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
+ * @author Michael 'Mickey' Lauer <mickey@vanille.de>
  */
 class ONamedListViewItem: public OListViewItem
 {
   public:
     /**
      * Constructor. Accepts the same parameters as a @ref OListViewItem,
      * plus a @ref QStringList which holds an arbitrary number of @a texts.
      */
     ONamedListViewItem( QListView* parent, const QStringList& texts );
     ONamedListViewItem( QListViewItem* parent, const QStringList& texts );
     ONamedListViewItem( QListView* parent, QListViewItem* after, const QStringList& texts );
     ONamedListViewItem( QListViewItem* parent, QListViewItem* after, const QStringList& texts );
     /**
      * Destructor.
      */
     virtual ~ONamedListViewItem();
     /**
      * Sets the text in column @a column to @a text.
      * This method differs from @ref QListViewItem::setText() in that it
      * accepts a string as column indicator instead of an int.
      */
     virtual void setText( const QString& column, const QString& text );
     /**
      * Sets a number of @a texts for this item.
      */
     virtual void setText( const QStringList& texts );
     /**
      * @returns the first child which has a @a text in column @a column.
      * Set @a recurse to indicate how much subchild levels to search, e.g.<ul>
      * <li>set it to 0 to search only among direct childs,
      * <li>set it to 1 to search direct childs and all 1st order subchilds
      * <li>set it to -1 for maximum recursion.