add OCheckListItem

change my email address

2 files changed, 210 insertions, 8 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
@@ -1,9 +1,9 @@
 /*
                              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
@@ -171,13 +171,13 @@ 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;
@@ -185,24 +185,48 @@ void OListView::serializeFrom( QDataStream& s )
         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 )
@@ -442,12 +466,135 @@ 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 )
 {
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
@@ -1,10 +1,9 @@
 /*
                              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
@@ -48,13 +47,13 @@ class OListViewItem;
  * @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.
@@ -119,12 +118,22 @@ class OListView: public QListView
    /**
     * Serialize this object from a @ref QDataStream @a stream
     */
     virtual void serializeFrom( QDataStream& s );
 #endif
 
+  public slots:
+    /**
+     * Expand all items
+     */
+     void expand();
+    /**
+     * Collapse all items
+     */
+     void collapse();
+
 protected slots:
     /** 
      * expand the current OListViewItem
      */
     void expand(QListViewItem*);    
 
@@ -150,12 +159,13 @@ QDataStream& operator>>( QDataStream& stream, OListView& listview );
 /*======================================================================================
  * OListViewItem
  *======================================================================================*/
 
 class OListViewItem: public QListViewItem
 {
+    friend class OCheckListItem;
   public:
     /**
      * Constructors.
      */
     OListViewItem( QListView * parent );
     OListViewItem( QListViewItem * parent );
@@ -247,24 +257,69 @@ 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.
@@ -307,13 +362,13 @@ class ONamedListView: public OListView
 
 /**
  * @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,