skeleton and the start of libopie2, please read README, ROADMAP and STATUS and comment...

author: mickeyl <mickeyl> 2003-03-28 15:11:52 (UTC)
committer: mickeyl <mickeyl> 2003-03-28 15:11:52 (UTC)
commit: 11304d02942e9fa493e4e80943a828f9c65f6772 (patch) (unidiff)
tree: a0223c10c067e1afc70d15c2b82be3f3c15e41ae /libopie2/qt3/opieui/ojanuswidget.cpp
parent: b271d575fa05cf570a1a829136517761bd47e69b (diff)
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1 files changed, 1116 insertions, 0 deletions
diff --git a/libopie2/qt3/opieui/ojanuswidget.cpp b/libopie2/qt3/opieui/ojanuswidget.cpp
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+/*
+ � � � � � � � �             This file is part of the Opie Project
+                             Originally part of the KDE project
+                             (C) 1999-2000 Espen Sand (espensa@online.no)
+              =.
+            .=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 <qbitmap.h>
+#include <qgrid.h>
+#include <qhbox.h>
+#include <qheader.h>
+#include <qlabel.h>
+#include <qlayout.h>
+#include <qobjectlist.h>
+#include <qpixmap.h>
+#include <qlistview.h>
+#include <qsplitter.h>
+#include <qtabwidget.h>
+#include <qvbox.h>
+#include <qwidgetstack.h>
+#include <qpainter.h>
+#include <qtimer.h>
+#include <qstyle.h>
+/* OPIE */
+#include <opie2/odialog.h>
+#include <opie2/oseparator.h>
+#include <opie2/ojanuswidget.h>
+/*======================================================================================
+ * IconListItem
+ *======================================================================================*/
+class OJanusWidget::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;
+};
+template class QPtrList<QListViewItem>;
+/*======================================================================================
+ * OJanusWidget
+ *======================================================================================*/
+OJanusWidget::OJanusWidget( 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 )
+  {
+    mPageList = new QPtrList<QWidget>;
+    mTitleList = new QStringList();
+    QFrame *page;
+    if( mFace == TreeList )
+    {
+      QSplitter *splitter = new QSplitter( this );
+      topLayout->addWidget( splitter, 10 );
+      mTreeListResizeMode = QSplitter::KeepSize;
+      mTreeList = new QListView( splitter );
+      mTreeList->addColumn( QString::fromLatin1("") );
+      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( splitter );
+      QHBoxLayout *hbox = new QHBoxLayout( p, 0, 0 );
+      hbox->addSpacing( ODialog::spacingHint() );
+      page = new QFrame( p );
+      hbox->addWidget( page, 10 );
+    }
+    else
+    {
+      QHBoxLayout *hbox = new QHBoxLayout( topLayout );
+      mIconList = new IconListBox( this );
+      QFont listFont( mIconList->font() );
+      listFont.setBold( true );
+      mIconList->setFont( listFont );
+      mIconList->verticalScrollBar()->installEventFilter( this );
+      hbox->addWidget( mIconList );
+      connect( mIconList, SIGNAL(selectionChanged()), SLOT(slotShowPage()));
+      hbox->addSpacing( ODialog::spacingHint() );
+      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, ODialog::spacingHint() );
+    mTitleLabel = new QLabel( QString::fromLatin1("Empty page"), page, "OJanusWidgetTitleLabel" );
+    vbox->addWidget( mTitleLabel );
+    QFont titleFont( mTitleLabel->font() );
+    titleFont.setBold( true );
+    mTitleLabel->setFont( titleFont );
+    mTitleSep = new OSeparator( page );
+    mTitleSep->setFrameStyle( QFrame::HLine|QFrame::Plain );
+    vbox->addWidget( mTitleSep );
+    mPageStack = new QWidgetStack( page );
+    connect(mPageStack, SIGNAL(aboutToShow(QWidget *)),
+            this, SIGNAL(aboutToShowPage(QWidget *)));
+    vbox->addWidget( mPageStack, 10 );
+  }
+  else if( mFace == Tabbed )
+  {
+    mPageList = new QPtrList<QWidget>;
+    mTabControl = new QTabWidget( this );
+    mTabControl->setMargin (ODialog::marginHint());
+    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 );
+  }
+  /* FIXME: Revise for Opie
+  if ( kapp )
+    connect(kapp,SIGNAL(kdisplayFontChanged()),SLOT(slotFontChanged()));
+   */
+  mValid = true;
+  setSwallowedWidget(0); // Set default size if 'mFace' is Swallow.
+}
+OJanusWidget::~OJanusWidget()
+{
+  delete mPageList;
+  mPageList = 0;
+  delete mTitleList;
+  mTitleList = 0;
+}
+bool OJanusWidget::isValid() const
+{
+  return( mValid );
+}
+QFrame *OJanusWidget::plainPage()
+{
+  return( mPlainPage );
+}
+int OJanusWidget::face() const
+{
+  return( mFace );
+}
+QWidget *OJanusWidget::FindParent()
+{
+  if( mFace == Tabbed ) {
+    return mTabControl;
+  }
+  else {
+    return this;
+  }
+}
+QFrame *OJanusWidget::addPage( const QStringList &items, const QString &header,
+                               const QPixmap &pixmap )
+{
+  if( mValid == false )
+  {
+    qDebug( "addPage: Invalid object" );
+    return( 0 );
+  }
+  QFrame *page = new QFrame( FindParent(), "page" );
+  addPageWidget( page, items, header, pixmap );
+  return page;
+}
+void OJanusWidget::pageGone( QObject *obj )
+{
+  removePage( static_cast<QWidget*>( obj ) );
+}
+void OJanusWidget::slotReopen( QListViewItem * item )
+{
+  if( item )
+    item->setOpen( true );
+}
+QFrame *OJanusWidget::addPage( const QString &itemName, const QString &header,
+                               const QPixmap &pixmap )
+{
+  QStringList items;
+  items << itemName;
+  return addPage(items, header, pixmap);
+}
+QVBox *OJanusWidget::addVBoxPage( const QStringList &items,
+                                  const QString &header,
+                                  const QPixmap &pixmap )
+{
+  if( mValid == false )
+  {
+    qDebug( "addPage: Invalid object" );
+    return( 0 );
+  }
+  QVBox *page = new QVBox(FindParent() , "page" );
+  page->setSpacing( ODialog::spacingHint() );
+  addPageWidget( page, items, header, pixmap );
+  return page;
+}
+QVBox *OJanusWidget::addVBoxPage( const QString &itemName,
+                                  const QString &header,
+                                  const QPixmap &pixmap )
+{
+  QStringList items;
+  items << itemName;
+  return addVBoxPage(items, header, pixmap);
+}
+QHBox *OJanusWidget::addHBoxPage( const QStringList &items,
+                                  const QString &header,
+                                  const QPixmap &pixmap )
+{
+  if( mValid == false ) {
+    qDebug( "addPage: Invalid object" );
+    return( 0 );
+  }
+  QHBox *page = new QHBox(FindParent(), "page");
+  page->setSpacing( ODialog::spacingHint() );
+  addPageWidget( page, items, header, pixmap );
+  return page;
+}
+QHBox *OJanusWidget::addHBoxPage( const QString &itemName,
+                                  const QString &header,
+                                  const QPixmap &pixmap )
+{
+  QStringList items;
+  items << itemName;
+  return addHBoxPage(items, header, pixmap);
+}
+QGrid *OJanusWidget::addGridPage( int n, Orientation dir,
+                                  const QStringList &items,
+                                  const QString &header,
+                                  const QPixmap &pixmap )
+{
+  if( mValid == false )
+  {
+    qDebug( "addPage: Invalid object" );
+    return( 0 );
+  }
+  QGrid *page = new QGrid( n, dir, FindParent(), "page" );
+  page->setSpacing( ODialog::spacingHint() );
+  addPageWidget( page, items, header, pixmap );
+  return page;
+}
+QGrid *OJanusWidget::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 OJanusWidget::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 == 0 && child == 0) {
+      // 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 != 0) {
+      // we found the given name in this child.
+      if (!isPath) {
+        qDebug( "The element inserted was already in the TreeList box!" );
+        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 OJanusWidget::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());
+    mPageList->append (page);
+  }
+  else if( mFace == TreeList || mFace == IconList )
+  {
+    mPageList->append( page );
+    mPageStack->addWidget( page, 0 );
+    if (items.count() == 0) {
+      qDebug( "Invalid QStringList, with zero items" );
+      return;
+    }
+    if( mFace == TreeList )
+    {
+      InsertTreeListItem(items, pixmap, page);
+    }
+    else // mFace == IconList
+    {
+      QString itemName = items.last();
+      IconListItem *item = new IconListItem( mIconList, pixmap, itemName );
+      //
+      // 2000-06-01 Espen Sand: If I do this with Qt 2.1.1 all sorts of
+      // strange things happen. With Qt <= 2.1 it worked but now I must
+      // either specify the listbox in the constructor on the item
+      // or as below, not both.
+      // mIconList->insertItem( item );
+      //
+      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 != QString::null ? header : lastName);
+    QRect r = mTitleLabel->fontMetrics().boundingRect( title );
+    if( mTitleLabel->minimumWidth() < r.width() )
+    {
+      mTitleLabel->setMinimumWidth( r.width() );
+    }
+    mTitleList->append( title );
+    if( mTitleList->count() == 1 )
+    {
+      showPage(0);
+    }
+  }
+  else
+  {
+    qDebug( "OJanusWidget::addPageWidget: can only add a page in Tabbed, TreeList or IconList modes" );
+  }
+}
+void OJanusWidget::setFolderIcon(const QStringList &path, const QPixmap &pixmap)
+{
+  QString key = path.join("_/_");
+  mFolderIconMap.insert(key,pixmap);
+}
+bool OJanusWidget::setSwallowedWidget( QWidget *widget )
+{
+  if( mFace != Swallow || mValid == false )
+  {
+    return( false );
+  }
+  //
+  // Remove current layout and make a new.
+  //
+  if( mSwallowPage->layout() != 0 )
+  {
+    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 == 0 )
+  {
+    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 OJanusWidget::slotShowPage()
+{
+  if( mValid == false )
+  {
+    return( false );
+  }
+  if( mFace == TreeList )
+  {
+    QListViewItem *node = mTreeList->selectedItem();
+    if( node == 0 ) { return( false ); }
+    QWidget *stackItem = mTreeListToPageStack[node];
+    return showPage(stackItem);
+  }
+  else if( mFace == IconList )
+  {
+    QListBoxItem *node = mIconList->item( mIconList->currentItem() );
+    if( node == 0 ) { return( false ); }
+    QWidget *stackItem = mIconListToPageStack[node];
+    return showPage(stackItem);
+  }
+  return( false );
+}
+bool OJanusWidget::showPage( int index )
+{
+  if( mPageList == 0 || mValid == false )
+  {
+    return( false );
+  }
+  else
+  {
+    return showPage(mPageList->at(index));
+  }
+}
+bool OJanusWidget::showPage( QWidget *w )
+{
+  if( w == 0 || mValid == false )
+  {
+    return( false );
+  }
+  if( mFace == TreeList || mFace == IconList )
+  {
+    mPageStack->raiseWidget( w );
+    mActivePageWidget = w;
+    int index = mPageList->findRef( w );
+    mTitleLabel->setText( *mTitleList->at(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;
+        }
+      }
+      //
+      // 2000-02-13 Espen Sand
+      // Don't ask me why (because I don't know). If I select a page
+      // with the mouse the page is not updated until it receives an
+      // event. It seems this event get lost if the mouse is not moved
+      // when released. The timer ensures the update
+      //
+      QTimer::singleShot( 0, mActivePageWidget, SLOT(update()) );
+    }
+  }
+  else if( mFace == Tabbed )
+  {
+    mTabControl->showPage(w);
+    mActivePageWidget = w;
+  }
+  else
+  {
+    return( false );
+  }
+  return( true );
+}
+int OJanusWidget::activePageIndex() const
+{
+  if( mFace == TreeList) {
+    QListViewItem *node = mTreeList->selectedItem();
+    if( node == 0 ) { return -1; }
+    QWidget *stackItem = mTreeListToPageStack[node];
+    return mPageList->findRef(stackItem);
+  }
+  else if (mFace == IconList) {
+    QListBoxItem *node = mIconList->item( mIconList->currentItem() );
+    if( node == 0 ) { return( false ); }
+    QWidget *stackItem = mIconListToPageStack[node];
+    return mPageList->findRef(stackItem);
+  }
+  else if( mFace == Tabbed ) {
+    QWidget *widget = mTabControl->currentPage();
+    return( widget == 0 ? -1 : mPageList->findRef( widget ) );
+  }
+  else {
+    return( -1 );
+  }
+}
+int OJanusWidget::pageIndex( QWidget *widget ) const
+{
+  if( widget == 0 )
+  {
+    return( -1 );
+  }
+  else if( mFace == TreeList || mFace == IconList )
+  {
+    return( mPageList->findRef( 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( mPageList->findRef( widget->parentWidget() ) );
+    }
+    else
+    {
+      return( mPageList->findRef( widget ) );
+    }
+  }
+  else
+  {
+    return( -1 );
+  }
+}
+void OJanusWidget::slotFontChanged()
+{
+#ifdef FIXME
+  
+  if ( mTitleLabel != 0 )
+  {
+    mTitleLabel->setFont( KGlobalSettings::generalFont() );
+    QFont titleFont( mTitleLabel->font() );
+    titleFont.setBold( true );
+    mTitleLabel->setFont( titleFont );
+  }
+#endif
+  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 OJanusWidget::slotItemClicked(QListViewItem *it)
+{
+  if(it && (it->childCount()>0))
+    it->setOpen(!it->isOpen());
+}
+void OJanusWidget::setFocus()
+{
+  if( mValid == false ) { 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 OJanusWidget::minimumSizeHint() const
+{
+  if( mFace == TreeList || mFace == IconList )
+  {
+    QSize s1( ODialog::spacingHint(), ODialog::spacingHint()*2 );
+    QSize s2(0,0);
+    QSize s3(0,0);
+    QSize s4( mPageStack->sizeHint() );
+    if( mFace == TreeList )
+    {
+#if QT_VERSION < 300
+      s1.rwidth() += style().splitterWidth();
+#else
+      s1.rwidth() += style().pixelMetric( QStyle::PM_SplitterWidth );
+#endif
+      s2 = mTreeList->minimumSize();
+    }
+    else
+    {
+      mIconList->updateMinimumHeight();
+      mIconList->updateWidth();
+      s2 = mIconList->minimumSize();
+    }
+    if( mTitleLabel->isVisible() == true )
+    {
+      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 OJanusWidget::sizeHint() const
+{
+  return( minimumSizeHint() );
+}
+void OJanusWidget::setTreeListAutoResize( bool state )
+{
+  if( mFace == TreeList )
+  {
+    mTreeListResizeMode = state == false ?
+      QSplitter::KeepSize : QSplitter::Stretch;
+    QSplitter *splitter = (QSplitter*)(mTreeList->parentWidget());
+    splitter->setResizeMode( mTreeList, mTreeListResizeMode );
+  }
+}
+void OJanusWidget::setIconListAllVisible( bool state )
+{
+  if( mFace == IconList )
+  {
+    mIconList->setShowAll( state );
+  }
+}
+void OJanusWidget::setShowIconsInTreeList( bool state )
+{
+  mShowIconsInTreeList = state;
+}
+void OJanusWidget::setRootIsDecorated( bool state )
+{
+  if( mFace == TreeList ) {
+    mTreeList->setRootIsDecorated(state);
+  }
+}
+void OJanusWidget::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 OJanusWidget::showEvent( QShowEvent * )
+{
+  if( mFace == TreeList )
+  {
+    QSplitter *splitter = (QSplitter*)(mTreeList->parentWidget());
+    splitter->setResizeMode( mTreeList, 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 OJanusWidget::eventFilter( QObject *o, QEvent *e )
+{
+  if( e->type() == QEvent::Show )
+  {
+    IconListItem *item = (IconListItem*)mIconList->item(0);
+    if( item != 0 )
+    {
+      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 != 0 )
+    {
+      int lw = item->width( mIconList );
+      mIconList->setFixedWidth( lw+mIconList->frameWidth()*2 );
+    }
+  }
+  return QWidget::eventFilter( o, e );
+}
+//
+// Code for the icon list box
+//
+OJanusWidget::IconListBox::IconListBox( QWidget *parent, const char *name,
+                                        WFlags f )
+  :QListBox( parent, name, f ), mShowAll(false), mHeightValid(false),
+   mWidthValid(false)
+{
+}
+void OJanusWidget::IconListBox::updateMinimumHeight()
+{
+  if( mShowAll == true && mHeightValid == false )
+  {
+    int h = frameWidth()*2;
+    for( QListBoxItem *i = item(0); i != 0; i = i->next() )
+    {
+      h += i->height( this );
+    }
+    setMinimumHeight( h );
+    mHeightValid = true;
+  }
+}
+void OJanusWidget::IconListBox::updateWidth()
+{
+  if( mWidthValid == false )
+  {
+    int maxWidth = 10;
+    for( QListBoxItem *i = item(0); i != 0; i = i->next() )
+    {
+      int w = ((IconListItem *)i)->width(this);
+      maxWidth = QMAX( w, maxWidth );
+    }
+    for( QListBoxItem *i = item(0); i != 0; i = i->next() )
+    {
+      ((IconListItem *)i)->expandMinimumWidth( maxWidth );
+    }
+    if( verticalScrollBar()->isVisible() )
+    {
+      maxWidth += verticalScrollBar()->sizeHint().width();
+    }
+    setFixedWidth( maxWidth + frameWidth()*2 );
+    mWidthValid = true;
+  }
+}
+void OJanusWidget::IconListBox::invalidateHeight()
+{
+  mHeightValid = false;
+}
+void OJanusWidget::IconListBox::invalidateWidth()
+{
+  mWidthValid = false;
+}
+void OJanusWidget::IconListBox::setShowAll( bool showAll )
+{
+  mShowAll = showAll;
+  mHeightValid = false;
+}
+OJanusWidget::IconListItem::IconListItem( QListBox *listbox, const QPixmap &pixmap,
+                                          const QString &text )
+  : QListBoxItem( listbox )
+{
+  mPixmap = pixmap;
+  if( mPixmap.isNull() == true )
+  {
+    mPixmap = defaultPixmap();
+  }
+  setText( text );
+  mMinimumWidth = 0;
+}
+int OJanusWidget::IconListItem::expandMinimumWidth( int width )
+{
+  mMinimumWidth = QMAX( mMinimumWidth, width );
+  return( mMinimumWidth );
+}
+const QPixmap &OJanusWidget::IconListItem::defaultPixmap()
+{
+  static QPixmap *pix=0;
+  if( pix == 0 )
+  {
+    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 OJanusWidget::IconListItem::paint( QPainter *painter )
+{
+  QFontMetrics fm = painter->fontMetrics();
+  //int wt = fm.boundingRect(text()).width();
+  int wp = mPixmap.width();
+  int ht = fm.lineSpacing();
+  int hp = mPixmap.height();
+  painter->drawPixmap( (mMinimumWidth-wp)/2, 5, mPixmap );
+  if( text().isEmpty() == false )
+  {
+    painter->drawText( 0, hp+7, mMinimumWidth, ht, Qt::AlignCenter, text() );
+  }
+}
+int OJanusWidget::IconListItem::height( const QListBox *lb ) const
+{
+  if( text().isEmpty() == true )
+  {
+    return( mPixmap.height() );
+  }
+  else
+  {
+    return( mPixmap.height() + lb->fontMetrics().lineSpacing()+10 );
+  }
+}
+int OJanusWidget::IconListItem::width( const QListBox *lb ) const
+{
+  int wt = lb->fontMetrics().boundingRect(text()).width()+10;
+  int wp = mPixmap.width() + 10;
+  int w  = QMAX( wt, wp );
+  return( QMAX( w, mMinimumWidth ) );
+}
+// Just remove the page from our stack of widgets. Do not modify the given widget in
+// any way. No memory leak occurs as parent is not changed.
+// Make this virtual in KDE 4.0.
+// Ravikiran Rajagopal <ravi@ee.eng.ohio-state.edu>
+void OJanusWidget::removePage( QWidget *page )
+{
+  if (!mPageList || !mPageList->containsRef(page))
+    return;
+  int index = mPageList->findRef( page );
+  if ( mTitleList )
+    mTitleList->remove(mTitleList->at(index));
+  mPageList->removeRef(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);
+                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);
+                break;
+      }
+  }
+  else // Tabbed
+  {
+    mTabControl->removePage(page);
+  }
+}
author	mickeyl <mickeyl>	2003-03-28 15:11:52 (UTC)
committer	mickeyl <mickeyl>	2003-03-28 15:11:52 (UTC)
commit	11304d02942e9fa493e4e80943a828f9c65f6772 (patch) (unidiff)
tree	a0223c10c067e1afc70d15c2b82be3f3c15e41ae /libopie2/qt3/opieui/ojanuswidget.cpp
parent	b271d575fa05cf570a1a829136517761bd47e69b (diff)
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