Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 1148 insertions, 0 deletions

diff --git a/kdeui/kjanuswidget.cpp b/kdeui/kjanuswidget.cpp
new file mode 100644
index 000000000..4a38a7b28
--- /dev/null
+++ b/kdeui/kjanuswidget.cpp
@@ -0,0 +1,1148 @@
+/*  This file is part of the KDE Libraries
+ *  Copyright (C) 1999-2000 Espen Sand (espensa@online.no)
+ *  Copyright (C) 2003 Ravikiran Rajagopal (ravi@kde.org)
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library 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., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301, USA.
+ */
+
+#include <qbitmap.h>
+#include <qgrid.h>
+#include <qhbox.h>
+#include <qheader.h>
+#include <qlabel.h>
+#include <qlayout.h>
+#include <qobjectlist.h>
+#include <qpixmap.h>
+#include <qsplitter.h>
+#include <qtabwidget.h>
+#include <qvbox.h>
+#include <qwidgetstack.h>
+#include <qpainter.h>
+#include <qstyle.h>
+
+#include <kapplication.h>
+#include <kdialog.h> // Access to some static members
+#include <klocale.h>
+#include <kglobal.h>
+#include <kglobalsettings.h>
+#include <kseparator.h>
+#include <kdebug.h>
+#include "kjanuswidget.h"
+#include <klistview.h>
+#include "kpushbutton.h"
+#include "kguiitem.h"
+
+class KJanusWidget::IconListItem : public QListBoxItem
+{
+  public:
+    IconListItem( QListBox *listbox, const QPixmap &pixmap,
+		   const QString &text );
+    virtual int height( const QListBox *lb ) const;
+    virtual int width( const QListBox *lb ) const;
+    int expandMinimumWidth( int width );
+
+  protected:
+    const QPixmap &defaultPixmap();
+    void paint( QPainter *painter );
+
+  private:
+    QPixmap mPixmap;
+    int mMinimumWidth;
+};
+
+class KJanusWidget::KJanusWidgetPrivate
+{
+public:
+  KJanusWidgetPrivate() : mNextPageIndex(0), mListFrame( 0 ) { }
+
+  int mNextPageIndex; // The next page index.
+
+  // Dictionary for multipage modes.
+  QMap<int,QWidget*> mIntToPage;
+  // Reverse dictionary. Used because showPage() may be performance critical.
+  QMap<QWidget*,int> mPageToInt;
+  // Dictionary of title string associated with page.
+  QMap<int, QString> mIntToTitle;
+
+  QWidget * mListFrame;
+  QSplitter * mSplitter;
+};
+
+template class QPtrList<QListViewItem>;
+
+
+KJanusWidget::KJanusWidget( QWidget *parent, const char *name, int face )
+  : QWidget( parent, name, 0 ),
+    mValid(false), mPageList(0),
+    mTitleList(0), mFace(face), mTitleLabel(0), mActivePageWidget(0),
+    mShowIconsInTreeList(false), d(0)
+{
+  QVBoxLayout *topLayout = new QVBoxLayout( this );
+
+  if( mFace == TreeList || mFace == IconList )
+  {
+    d = new KJanusWidgetPrivate;
+    d->mSplitter = 0;
+
+    QFrame *page;
+    if( mFace == TreeList )
+    {
+      d->mSplitter = new QSplitter( this );
+      topLayout->addWidget( d->mSplitter, 10 );
+      mTreeListResizeMode = QSplitter::KeepSize;
+
+      d->mListFrame = new QWidget( d->mSplitter );
+      QVBoxLayout *dummy = new QVBoxLayout( d->mListFrame, 0, KDialog::spacingHint() );
+      dummy->setAutoAdd( true );
+      mTreeList = new KListView( d->mListFrame );
+      mTreeList->addColumn( QString::null );
+      mTreeList->header()->hide();
+      mTreeList->setRootIsDecorated(true);
+      mTreeList->setSorting( -1 );
+      connect( mTreeList, SIGNAL(selectionChanged()), SLOT(slotShowPage()) );
+      connect( mTreeList, SIGNAL(clicked(QListViewItem *)), SLOT(slotItemClicked(QListViewItem *)));
+
+      //
+      // Page area. Title at top with a separator below and a pagestack using
+      // all available space at bottom.
+      //
+      QFrame *p = new QFrame( d->mSplitter );
+
+      QHBoxLayout *hbox = new QHBoxLayout( p, 0, 0 );
+
+      page = new QFrame( p );
+      hbox->addWidget( page, 10 );
+    }
+    else
+    {
+      QHBoxLayout *hbox = new QHBoxLayout( topLayout );
+      d->mListFrame = new QWidget( this );
+      hbox->addWidget( d->mListFrame );
+
+      ( new QVBoxLayout( d->mListFrame, 0, 0 ) )->setAutoAdd( true );
+      mIconList = new IconListBox( d->mListFrame );
+
+      QFont listFont( mIconList->font() );
+      listFont.setBold( true );
+      mIconList->setFont( listFont );
+
+      mIconList->verticalScrollBar()->installEventFilter( this );
+      connect( mIconList, SIGNAL(selectionChanged()), SLOT(slotShowPage()));
+      hbox->addSpacing( KDialog::marginHint() );
+      page = new QFrame( this );
+      hbox->addWidget( page, 10 );
+    }
+
+    //
+    // Rest of page area. Title at top with a separator below and a
+    // pagestack using all available space at bottom.
+    //
+
+    QVBoxLayout *vbox = new QVBoxLayout( page, 0, KDialog::spacingHint() );
+
+    mTitleLabel = new QLabel( i18n("Empty Page"), page, "KJanusWidgetTitleLabel" );
+    vbox->addWidget( mTitleLabel, 0, QApplication::reverseLayout() ? AlignRight : AlignLeft );
+
+    QFont titleFont( mTitleLabel->font() );
+    titleFont.setBold( true );
+    mTitleLabel->setFont( titleFont );
+
+    mTitleSep = new KSeparator( page );
+    mTitleSep->setFrameStyle( QFrame::HLine|QFrame::Plain );
+    vbox->addWidget( mTitleSep );
+
+    mPageStack = new QWidgetStack( page );
+    connect(mPageStack, SIGNAL(aboutToShow(QWidget *)),
+            SIGNAL(aboutToShowPage(QWidget *)));
+    vbox->addWidget( mPageStack, 10 );
+  }
+  else if( mFace == Tabbed )
+  {
+    d = new KJanusWidgetPrivate;
+
+    mTabControl = new QTabWidget( this );
+    mTabControl->setMargin (KDialog::marginHint());
+    connect(mTabControl, SIGNAL(currentChanged(QWidget *)),
+            SIGNAL(aboutToShowPage(QWidget *)));
+    topLayout->addWidget( mTabControl, 10 );
+  }
+  else if( mFace == Swallow )
+  {
+    mSwallowPage = new QWidget( this );
+    topLayout->addWidget( mSwallowPage, 10 );
+  }
+  else
+  {
+    mFace = Plain;
+    mPlainPage = new QFrame( this );
+    topLayout->addWidget( mPlainPage, 10 );
+  }
+
+  if ( kapp )
+    connect(kapp,SIGNAL(kdisplayFontChanged()),SLOT(slotFontChanged()));
+  mValid = true;
+
+  setSwallowedWidget(0); // Set default size if 'mFace' is Swallow.
+}
+
+
+KJanusWidget::~KJanusWidget()
+{
+  delete d;
+}
+
+
+bool KJanusWidget::isValid() const
+{
+  return mValid;
+}
+
+
+QFrame *KJanusWidget::plainPage()
+{
+  return mPlainPage;
+}
+
+
+int KJanusWidget::face() const
+{
+  return mFace;
+}
+
+QWidget *KJanusWidget::FindParent()
+{
+  if( mFace == Tabbed ) {
+    return mTabControl;
+  }
+  else {
+    return this;
+  }
+}
+
+QFrame *KJanusWidget::addPage( const QStringList &items, const QString &header,
+			       const QPixmap &pixmap )
+{
+  if( !mValid )
+  {
+    kdDebug() << "addPage: Invalid object" << endl;
+    return 0;
+  }
+
+  QFrame *page = new QFrame( FindParent(), "page" );
+  addPageWidget( page, items, header, pixmap );
+
+  return page;
+}
+
+void KJanusWidget::pageGone( QObject *obj )
+{
+  removePage( static_cast<QWidget*>( obj ) );
+}
+
+void KJanusWidget::slotReopen( QListViewItem * item )
+{
+  if( item )
+    item->setOpen( true );
+}
+
+QFrame *KJanusWidget::addPage( const QString &itemName, const QString &header,
+			       const QPixmap &pixmap )
+{
+  QStringList items;
+  items << itemName;
+  return addPage(items, header, pixmap);
+}
+
+
+
+QVBox *KJanusWidget::addVBoxPage( const QStringList &items,
+				  const QString &header,
+				  const QPixmap &pixmap )
+{
+  if( !mValid )
+  {
+    kdDebug() << "addPage: Invalid object" << endl;
+    return 0;
+  }
+
+  QVBox *page = new QVBox(FindParent() , "page" );
+  page->setSpacing( KDialog::spacingHint() );
+  addPageWidget( page, items, header, pixmap );
+
+  return page;
+}
+
+QVBox *KJanusWidget::addVBoxPage( const QString &itemName,
+				  const QString &header,
+				  const QPixmap &pixmap )
+{
+  QStringList items;
+  items << itemName;
+  return addVBoxPage(items, header, pixmap);
+}
+
+QHBox *KJanusWidget::addHBoxPage( const QStringList &items,
+				  const QString &header,
+				  const QPixmap &pixmap )
+{
+  if( !mValid ) {
+    kdDebug() << "addPage: Invalid object" << endl;
+    return 0;
+  }
+
+  QHBox *page = new QHBox(FindParent(), "page");
+  page->setSpacing( KDialog::spacingHint() );
+  addPageWidget( page, items, header, pixmap );
+
+  return page;
+}
+
+QHBox *KJanusWidget::addHBoxPage( const QString &itemName,
+				  const QString &header,
+				  const QPixmap &pixmap )
+{
+  QStringList items;
+  items << itemName;
+  return addHBoxPage(items, header, pixmap);
+}
+
+QGrid *KJanusWidget::addGridPage( int n, Orientation dir,
+				  const QStringList &items,
+				  const QString &header,
+				  const QPixmap &pixmap )
+{
+  if( !mValid )
+  {
+    kdDebug() << "addPage: Invalid object" << endl;
+    return 0;
+  }
+
+  QGrid *page = new QGrid( n, dir, FindParent(), "page" );
+  page->setSpacing( KDialog::spacingHint() );
+  addPageWidget( page, items, header, pixmap );
+
+  return page;
+}
+
+
+QGrid *KJanusWidget::addGridPage( int n, Orientation dir,
+				  const QString &itemName,
+				  const QString &header,
+				  const QPixmap &pixmap )
+{
+  QStringList items;
+  items << itemName;
+  return addGridPage(n, dir, items, header, pixmap);
+}
+
+void KJanusWidget::InsertTreeListItem(const QStringList &items, const QPixmap &pixmap, QFrame *page)
+{
+  bool isTop = true;
+  QListViewItem *curTop = 0, *child, *last, *newChild;
+  unsigned int index = 1;
+  QStringList curPath;
+
+  for ( QStringList::ConstIterator it = items.begin(); it != items.end(); ++it, index++ ) {
+    QString name = (*it);
+    bool isPath = ( index != items.count() );
+
+    // Find the first child.
+    if (isTop) {
+      child = mTreeList->firstChild();
+    }
+    else {
+      child = curTop->firstChild();
+    }
+
+    // Now search for a child with the current Name, and if it we doesn't
+    // find it, then remember the location of the last child.
+    for (last = 0; child && child->text(0) != name ; last = child, child = child->nextSibling());
+
+    if (!last && !child) {
+      // This node didn't have any children at all, lets just insert the
+      // new child.
+      if (isTop)
+        newChild = new QListViewItem(mTreeList, name);
+      else
+        newChild = new QListViewItem(curTop, name);
+
+    }
+    else if (child) {
+      // we found the given name in this child.
+      if (!isPath) {
+        kdDebug() << "The element inserted was already in the TreeList box!" << endl;
+        return;
+      }
+      else {
+        // Ok we found the folder
+        newChild  = child;
+      }
+    }
+    else {
+      // the node had some children, but we didn't find the given name
+      if (isTop)
+        newChild = new QListViewItem(mTreeList, last, name);
+      else
+        newChild = new QListViewItem(curTop, last, name);
+    }
+
+    // Now make the element expandable if it is a path component, and make
+    // ready for next loop
+    if (isPath) {
+      newChild->setExpandable(true);
+      curTop = newChild;
+      isTop = false;
+      curPath << name;
+
+      QString key = curPath.join("_/_");
+      if (mFolderIconMap.contains(key)) {
+        QPixmap p = mFolderIconMap[key];
+        newChild->setPixmap(0,p);
+      }
+    }
+    else {
+      if (mShowIconsInTreeList) {
+        newChild->setPixmap(0, pixmap);
+      }
+      mTreeListToPageStack.insert(newChild, page);
+    }
+  }
+}
+
+void KJanusWidget::addPageWidget( QFrame *page, const QStringList &items,
+				  const QString &header,const QPixmap &pixmap )
+{
+  connect(page, SIGNAL(destroyed(QObject*)), SLOT(pageGone(QObject*)));
+
+  if( mFace == Tabbed )
+  {
+    mTabControl->addTab (page, items.last());
+    d->mIntToPage[d->mNextPageIndex] = static_cast<QWidget*>(page);
+    d->mPageToInt[static_cast<QWidget*>(page)] = d->mNextPageIndex;
+    d->mNextPageIndex++;
+  }
+  else if( mFace == TreeList || mFace == IconList )
+  {
+    d->mIntToPage[d->mNextPageIndex] = static_cast<QWidget*>(page);
+    d->mPageToInt[static_cast<QWidget*>(page)] = d->mNextPageIndex;
+    mPageStack->addWidget( page, 0 );
+
+    if (items.isEmpty()) {
+      kdDebug() << "Invalid QStringList, with zero items" << endl;
+      return;
+    }
+
+    if( mFace == TreeList )
+    {
+      InsertTreeListItem(items, pixmap, page);
+    }
+    else // mFace == IconList
+    {
+      QString itemName = items.last();
+      IconListItem *item = new IconListItem( mIconList, pixmap, itemName );
+      mIconListToPageStack.insert(item, page);
+      mIconList->invalidateHeight();
+      mIconList->invalidateWidth();
+
+      if (mIconList->isVisible())
+        mIconList->updateWidth();
+    }
+
+    //
+    // Make sure the title label is sufficiently wide
+    //
+    QString lastName = items.last();
+    const QString &title = (!header.isNull() ? header : lastName);
+    QRect r = mTitleLabel->fontMetrics().boundingRect( title );
+    if( mTitleLabel->minimumWidth() < r.width() )
+    {
+      mTitleLabel->setMinimumWidth( r.width() );
+    }
+    d->mIntToTitle[d->mNextPageIndex] = title;
+    if( d->mIntToTitle.count() == 1 )
+    {
+      showPage(0);
+    }
+    d->mNextPageIndex++;
+  }
+  else
+  {
+    kdDebug() << "KJanusWidget::addPageWidget: can only add a page in Tabbed, TreeList or IconList modes" << endl;
+  }
+
+}
+
+void KJanusWidget::setFolderIcon(const QStringList &path, const QPixmap &pixmap)
+{
+  QString key = path.join("_/_");
+  mFolderIconMap.insert(key,pixmap);
+}
+
+
+
+bool KJanusWidget::setSwallowedWidget( QWidget *widget )
+{
+  if( mFace != Swallow || !mValid )
+  {
+    return false;
+  }
+
+  //
+  // Remove current layout and make a new.
+  //
+  delete mSwallowPage->layout();
+
+  QGridLayout *gbox = new QGridLayout( mSwallowPage, 1, 1, 0 );
+
+  //
+  // Hide old children
+  //
+  QObjectList *l = (QObjectList*)mSwallowPage->children(); // silence please
+  for( uint i=0; i < l->count(); i++ )
+  {
+    QObject *o = l->at(i);
+    if( o->isWidgetType() )
+    {
+      ((QWidget*)o)->hide();
+    }
+  }
+
+  //
+  // Add new child or make default size
+  //
+  if( !widget )
+  {
+    gbox->addRowSpacing(0,100);
+    gbox->addColSpacing(0,100);
+    mSwallowPage->setMinimumSize(100,100);
+  }
+  else
+  {
+    if( widget->parent() != mSwallowPage )
+    {
+      widget->reparent( mSwallowPage, 0, QPoint(0,0) );
+    }
+    gbox->addWidget(widget, 0, 0 );
+    gbox->activate();
+    mSwallowPage->setMinimumSize( widget->minimumSize() );
+  }
+
+  return true;
+}
+
+bool KJanusWidget::slotShowPage()
+{
+  if( !mValid )
+  {
+    return false;
+  }
+
+  if( mFace == TreeList )
+  {
+    QListViewItem *node = mTreeList->selectedItem();
+    if( !node ) { return false; }
+
+    QWidget *stackItem = mTreeListToPageStack[node];
+    // Make sure to call through the virtual function showPage(int)
+    return showPage(d->mPageToInt[stackItem]);
+  }
+  else if( mFace == IconList )
+  {
+    QListBoxItem *node = mIconList->item( mIconList->currentItem() );
+    if( !node ) { return false; }
+    QWidget *stackItem = mIconListToPageStack[node];
+    // Make sure to call through the virtual function showPage(int)
+    return showPage(d->mPageToInt[stackItem]);
+  }
+
+  return false;
+}
+
+
+bool KJanusWidget::showPage( int index )
+{
+  if( !d || !mValid )
+  {
+    return false;
+  }
+  else
+  {
+    return showPage(d->mIntToPage[index]);
+  }
+}
+
+
+bool KJanusWidget::showPage( QWidget *w )
+{
+  if( !w || !mValid )
+  {
+    return false;
+  }
+
+  if( mFace == TreeList || mFace == IconList )
+  {
+    mPageStack->raiseWidget( w );
+    mActivePageWidget = w;
+
+    int index = d->mPageToInt[w];
+    mTitleLabel->setText( d->mIntToTitle[index] );
+    if( mFace == TreeList )
+    {
+      QMap<QListViewItem *, QWidget *>::Iterator it;
+      for (it = mTreeListToPageStack.begin(); it != mTreeListToPageStack.end(); ++it){
+        QListViewItem *key = it.key();
+        QWidget *val = it.data();
+        if (val == w) {
+          mTreeList->setSelected(key, true );
+          break;
+        }
+      }
+    }
+    else
+    {
+      QMap<QListBoxItem *, QWidget *>::Iterator it;
+      for (it = mIconListToPageStack.begin(); it != mIconListToPageStack.end(); ++it){
+        QListBoxItem *key = it.key();
+        QWidget *val = it.data();
+        if (val == w) {
+          mIconList->setSelected( key, true );
+          break;
+        }
+      }
+    }
+  }
+  else if( mFace == Tabbed )
+  {
+    mTabControl->showPage(w);
+    mActivePageWidget = w;
+  }
+  else
+  {
+    return false;
+  }
+
+  return true;
+}
+
+
+int KJanusWidget::activePageIndex() const
+{
+  if( mFace == TreeList) {
+    QListViewItem *node = mTreeList->selectedItem();
+    if( !node ) { return -1; }
+    QWidget *stackItem = mTreeListToPageStack[node];
+    return d->mPageToInt[stackItem];
+  }
+  else if (mFace == IconList) {
+    QListBoxItem *node = mIconList->item( mIconList->currentItem() );
+    if( !node ) { return false; }
+    QWidget *stackItem = mIconListToPageStack[node];
+    return d->mPageToInt[stackItem];
+  }
+  else if( mFace == Tabbed ) {
+    QWidget *widget = mTabControl->currentPage();
+    return ( !widget ? -1 : d->mPageToInt[widget] );
+  }
+  else {
+    return -1;
+  }
+}
+
+
+int KJanusWidget::pageIndex( QWidget *widget ) const
+{
+  if( !widget )
+  {
+    return -1;
+  }
+  else if( mFace == TreeList || mFace == IconList )
+  {
+    return d->mPageToInt[widget];
+  }
+  else if( mFace == Tabbed )
+  {
+    //
+    // The user gets the real page widget with addVBoxPage(), addHBoxPage()
+    // and addGridPage() but not with addPage() which returns a child of
+    // the toplevel page. addPage() returns a QFrame so I check for that.
+    //
+    if( widget->isA("QFrame") )
+    {
+      return d->mPageToInt[widget->parentWidget()];
+    }
+    else
+    {
+      return d->mPageToInt[widget];
+    }
+  }
+  else
+  {
+    return -1;
+  }
+}
+
+void KJanusWidget::slotFontChanged()
+{
+  if( mTitleLabel )
+  {
+    mTitleLabel->setFont( KGlobalSettings::generalFont() );
+    QFont titleFont( mTitleLabel->font() );
+    titleFont.setBold( true );
+    mTitleLabel->setFont( titleFont );
+  }
+
+  if( mFace == IconList )
+  {
+    QFont listFont( mIconList->font() );
+    listFont.setBold( true );
+    mIconList->setFont( listFont );
+    mIconList->invalidateHeight();
+    mIconList->invalidateWidth();
+  }
+}
+
+// makes the treelist behave like the list of kcontrol
+void KJanusWidget::slotItemClicked(QListViewItem *it)
+{
+  if(it && (it->childCount()>0))
+    it->setOpen(!it->isOpen());
+}
+
+void KJanusWidget::setFocus()
+{
+  if( !mValid ) { return; }
+  if( mFace == TreeList )
+  {
+    mTreeList->setFocus();
+  }
+  if( mFace == IconList )
+  {
+    mIconList->setFocus();
+  }
+  else if( mFace == Tabbed )
+  {
+    mTabControl->setFocus();
+  }
+  else if( mFace == Swallow )
+  {
+    mSwallowPage->setFocus();
+  }
+  else if( mFace == Plain )
+  {
+    mPlainPage->setFocus();
+  }
+}
+
+
+QSize KJanusWidget::minimumSizeHint() const
+{
+  if( mFace == TreeList || mFace == IconList )
+  {
+    QSize s1( KDialog::spacingHint(), KDialog::spacingHint()*2 );
+    QSize s2(0,0);
+    QSize s3(0,0);
+    QSize s4( mPageStack->sizeHint() );
+
+    if( mFace == TreeList )
+    {
+      s1.rwidth() += style().pixelMetric( QStyle::PM_SplitterWidth );
+      s2 = mTreeList->minimumSize();
+    }
+    else
+    {
+      mIconList->updateMinimumHeight();
+      mIconList->updateWidth();
+      s2 = mIconList->minimumSize();
+    }
+
+    if( mTitleLabel->isVisible() )
+    {
+      s3 += mTitleLabel->sizeHint();
+      s3.rheight() += mTitleSep->minimumSize().height();
+    }
+
+    //
+    // Select the tallest item. It has only effect in IconList mode
+    //
+    int h1 = s1.rheight() + s3.rheight() + s4.height();
+    int h2 = QMAX( h1, s2.rheight() );
+
+    return QSize( s1.width()+s2.width()+QMAX(s3.width(),s4.width()), h2 );
+  }
+  else if( mFace == Tabbed )
+  {
+    return mTabControl->sizeHint();
+  }
+  else if( mFace == Swallow )
+  {
+    return mSwallowPage->minimumSize();
+  }
+  else if( mFace == Plain )
+  {
+    return mPlainPage->sizeHint();
+  }
+  else
+  {
+    return QSize( 100, 100 ); // Should never happen though.
+  }
+
+}
+
+
+QSize KJanusWidget::sizeHint() const
+{
+  return minimumSizeHint();
+}
+
+
+void KJanusWidget::setTreeListAutoResize( bool state )
+{
+  if( mFace == TreeList )
+  {
+    mTreeListResizeMode = !state ?
+      QSplitter::KeepSize : QSplitter::Stretch;
+    if( d->mSplitter )
+      d->mSplitter->setResizeMode( d->mListFrame, mTreeListResizeMode );
+  }
+}
+
+
+void KJanusWidget::setIconListAllVisible( bool state )
+{
+  if( mFace == IconList )
+  {
+    mIconList->setShowAll( state );
+  }
+}
+
+void KJanusWidget::setShowIconsInTreeList( bool state )
+{
+  mShowIconsInTreeList = state;
+}
+
+void KJanusWidget::setRootIsDecorated( bool state )
+{
+  if( mFace == TreeList ) {
+    mTreeList->setRootIsDecorated(state);
+  }
+}
+
+void KJanusWidget::unfoldTreeList( bool persist )
+{
+  if( mFace == TreeList )
+  {
+    if( persist )
+      connect( mTreeList, SIGNAL( collapsed( QListViewItem * ) ), this, SLOT( slotReopen( QListViewItem * ) ) );
+    else
+      disconnect( mTreeList, SIGNAL( collapsed( QListViewItem * ) ), this, SLOT( slotReopen( QListViewItem * ) ) );
+
+    for( QListViewItem * item = mTreeList->firstChild(); item; item = item->itemBelow() )
+      item->setOpen( true );
+  }
+}
+
+void KJanusWidget::addWidgetBelowList( QWidget * widget )
+{
+  if( ( mFace == TreeList || mFace == IconList ) && d->mListFrame )
+  {
+    widget->reparent( d->mListFrame, QPoint() );
+  }
+}
+
+void KJanusWidget::addButtonBelowList( const QString & text, QObject * recv, const char * slot )
+{
+  if( ( mFace == TreeList || mFace == IconList ) && d->mListFrame )
+  {
+    QPushButton * button = new QPushButton( text, d->mListFrame, "KJanusWidget::buttonBelowList" );
+    connect( button, SIGNAL( clicked() ), recv, slot );
+  }
+}
+
+void KJanusWidget::addButtonBelowList( const KGuiItem & item, QObject * recv, const char * slot )
+{
+  if( ( mFace == TreeList || mFace == IconList ) && d->mListFrame )
+  {
+    KPushButton * button = new KPushButton( item, d->mListFrame, "KJanusWidget::buttonBelowList" );
+    connect( button, SIGNAL( clicked() ), recv, slot );
+  }
+}
+
+void KJanusWidget::showEvent( QShowEvent * )
+{
+  if( mFace == TreeList )
+  {
+    if( d->mSplitter )
+      d->mSplitter->setResizeMode( d->mListFrame, mTreeListResizeMode );
+  }
+}
+
+
+//
+// 2000-13-02 Espen Sand
+// It should be obvious that this eventfilter must only be
+// be installed on the vertical scrollbar of the mIconList.
+//
+bool KJanusWidget::eventFilter( QObject *o, QEvent *e )
+{
+  if( e->type() == QEvent::Show )
+  {
+    IconListItem *item = (IconListItem*)mIconList->item(0);
+    if( item )
+    {
+      int lw = item->width( mIconList );
+      int sw = mIconList->verticalScrollBar()->sizeHint().width();
+      mIconList->setFixedWidth( lw+sw+mIconList->frameWidth()*2 );
+    }
+  }
+  else if( e->type() == QEvent::Hide )
+  {
+    IconListItem *item = (IconListItem*)mIconList->item(0);
+    if( item )
+    {
+      int lw = item->width( mIconList );
+      mIconList->setFixedWidth( lw+mIconList->frameWidth()*2 );
+    }
+  }
+  return QWidget::eventFilter( o, e );
+}
+
+
+
+//
+// Code for the icon list box
+//
+
+
+KJanusWidget::IconListBox::IconListBox( QWidget *parent, const char *name,
+					WFlags f )
+  :KListBox( parent, name, f ), mShowAll(false), mHeightValid(false),
+   mWidthValid(false)
+{
+}
+
+
+void KJanusWidget::IconListBox::updateMinimumHeight()
+{
+  if( mShowAll && !mHeightValid )
+  {
+    int h = frameWidth()*2;
+    for( QListBoxItem *i = item(0); i; i = i->next() )
+    {
+      h += i->height( this );
+    }
+    setMinimumHeight( h );
+    mHeightValid = true;
+  }
+}
+
+
+void KJanusWidget::IconListBox::updateWidth()
+{
+  if( !mWidthValid )
+  {
+    int maxWidth = 10;
+    for( QListBoxItem *i = item(0); i; i = i->next() )
+    {
+      int w = ((IconListItem *)i)->width(this);
+      maxWidth = QMAX( w, maxWidth );
+    }
+
+    for( QListBoxItem *i = item(0); i; i = i->next() )
+    {
+      ((IconListItem *)i)->expandMinimumWidth( maxWidth );
+    }
+
+    if( verticalScrollBar()->isVisible() )
+    {
+      maxWidth += verticalScrollBar()->sizeHint().width();
+    }
+
+    setFixedWidth( maxWidth + frameWidth()*2 );
+    mWidthValid = true;
+  }
+}
+
+
+void KJanusWidget::IconListBox::invalidateHeight()
+{
+  mHeightValid = false;
+}
+
+
+void KJanusWidget::IconListBox::invalidateWidth()
+{
+  mWidthValid = false;
+}
+
+
+void KJanusWidget::IconListBox::setShowAll( bool showAll )
+{
+  mShowAll = showAll;
+  mHeightValid = false;
+}
+
+
+
+KJanusWidget::IconListItem::IconListItem( QListBox *listbox, const QPixmap &pixmap,
+                                          const QString &text )
+  : QListBoxItem( listbox )
+{
+  mPixmap = pixmap;
+  if( mPixmap.isNull() )
+  {
+    mPixmap = defaultPixmap();
+  }
+  setText( text );
+  mMinimumWidth = 0;
+}
+
+
+int KJanusWidget::IconListItem::expandMinimumWidth( int width )
+{
+  mMinimumWidth = QMAX( mMinimumWidth, width );
+  return mMinimumWidth;
+}
+
+
+const QPixmap &KJanusWidget::IconListItem::defaultPixmap()
+{
+  static QPixmap *pix=0;
+  if( !pix )
+  {
+    pix = new QPixmap( 32, 32 );
+    QPainter p( pix );
+    p.eraseRect( 0, 0, pix->width(), pix->height() );
+    p.setPen( Qt::red );
+    p.drawRect ( 0, 0, pix->width(), pix->height() );
+    p.end();
+
+    QBitmap mask( pix->width(), pix->height(), true );
+    mask.fill( Qt::black );
+    p.begin( &mask );
+    p.setPen( Qt::white );
+    p.drawRect ( 0, 0, pix->width(), pix->height() );
+    p.end();
+
+    pix->setMask( mask );
+  }
+  return *pix;
+}
+
+
+void KJanusWidget::IconListItem::paint( QPainter *painter )
+{
+  QFontMetrics fm = painter->fontMetrics();
+  int ht = fm.boundingRect( 0, 0, 0, 0, Qt::AlignCenter, text() ).height();
+  int wp = mPixmap.width();
+  int hp = mPixmap.height();
+
+  painter->drawPixmap( (mMinimumWidth-wp)/2, 5, mPixmap );
+  if( !text().isEmpty() )
+  {
+    painter->drawText( 0, hp+7, mMinimumWidth, ht, Qt::AlignCenter, text() );
+  }
+}
+
+int KJanusWidget::IconListItem::height( const QListBox *lb ) const
+{
+  if( text().isEmpty() )
+  {
+    return mPixmap.height();
+  }
+  else
+  {
+    int ht = lb->fontMetrics().boundingRect( 0, 0, 0, 0, Qt::AlignCenter, text() ).height();
+    return (mPixmap.height() + ht + 10);
+  }
+}
+
+
+int KJanusWidget::IconListItem::width( const QListBox *lb ) const
+{
+  int wt = lb->fontMetrics().boundingRect( 0, 0, 0, 0, Qt::AlignCenter, text() ).width() + 10;
+  int wp = mPixmap.width() + 10;
+  int w  = QMAX( wt, wp );
+  return QMAX( w, mMinimumWidth );
+}
+
+
+void KJanusWidget::virtual_hook( int, void* )
+{ /*BASE::virtual_hook( id, data );*/ }
+
+// TODO: In TreeList, if the last child of a node is removed, and there is no corrsponding widget for that node, allow the caller to
+// delete the node.
+void KJanusWidget::removePage( QWidget *page )
+{
+  if (!d || !d->mPageToInt.contains(page))
+    return;
+
+  int index = d->mPageToInt[page];
+
+  if ( mFace == TreeList )
+  {
+    QMap<QListViewItem*, QWidget *>::Iterator i;
+    for( i = mTreeListToPageStack.begin(); i != mTreeListToPageStack.end(); ++i )
+      if (i.data()==page)
+      {
+        delete i.key();
+        mPageStack->removeWidget(page);
+        mTreeListToPageStack.remove(i);
+        d->mIntToTitle.remove(index);
+        d->mPageToInt.remove(page);
+        d->mIntToPage.remove(index);
+        break;
+      }
+  }
+  else if ( mFace == IconList )
+  {
+    QMap<QListBoxItem*, QWidget *>::Iterator i;
+    for( i = mIconListToPageStack.begin(); i != mIconListToPageStack.end(); ++i )
+      if (i.data()==page)
+      {
+        delete i.key();
+        mPageStack->removeWidget(page);
+        mIconListToPageStack.remove(i);
+        d->mIntToTitle.remove(index);
+        d->mPageToInt.remove(page);
+        d->mIntToPage.remove(index);
+        break;
+      }
+  }
+  else // Tabbed
+  {
+    mTabControl->removePage(page);
+    d->mPageToInt.remove(page);
+    d->mIntToPage.remove(index);
+  }
+}
+
+QString KJanusWidget::pageTitle(int index) const
+{
+  if (!d || !d->mIntToTitle.contains(index))
+    return QString::null;
+  else
+    return d->mIntToTitle[index];
+}
+
+QWidget *KJanusWidget::pageWidget(int index) const
+{
+  if (!d || !d->mIntToPage.contains(index))
+    return 0;
+  else
+    return d->mIntToPage[index];
+}
+
+#include "kjanuswidget.moc"