apps/konqueror/src/konqframecontainer.cpp

   1 /*  This file is part of the KDE project
   2     Copyright (C) 1998, 1999 Michael Reiher <michael.reiher@gmx.de>
   3     Copyright 2007 David Faure <faure@kde.org>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18 */
  19
  20 #include "konqframecontainer.h"
  21 #include <kdebug.h>
  22 #include <kglobalsettings.h>
  23 #include <kconfig.h>
  24 #include <math.h> // pow()
  25 #include <kconfiggroup.h>
  26
  27 #include "konqframevisitor.h"
  28
  29 void KonqFrameContainerBase::replaceChildFrame(KonqFrameBase* oldFrame, KonqFrameBase* newFrame)
  30 {
  31     childFrameRemoved(oldFrame);
  32     insertChildFrame(newFrame);
  33 }
  34
  35 KonqFrameContainer* KonqFrameContainerBase::splitChildFrame(KonqFrameBase* splitFrame, Qt::Orientation orientation)
  36 {
  37     KonqFrameContainer *newContainer = new KonqFrameContainer(orientation, asQWidget(), this);
  38     replaceChildFrame(splitFrame, newContainer);
  39     newContainer->insertChildFrame(splitFrame);
  40     return newContainer;
  41 }
  42
  43 ////
  44
  45 KonqFrameContainer::KonqFrameContainer( Qt::Orientation o,
  46                                         QWidget* parent,
  47                                         KonqFrameContainerBase* parentContainer )
  48   : QSplitter( o, parent ), m_bAboutToBeDeleted(false)
  49 {
  50   m_pParentContainer = parentContainer;
  51   m_pFirstChild = 0L;
  52   m_pSecondChild = 0L;
  53   m_pActiveChild = 0L;
  54   setOpaqueResize( KGlobalSettings::opaqueResize() );
  55   connect(this, SIGNAL(splitterMoved(int, int)), this, SIGNAL(setRubberbandCalled()));
  56 //### CHECKME
  57 }
  58
  59 KonqFrameContainer::~KonqFrameContainer()
  60 {
  61     //kDebug(1202) << "KonqFrameContainer::~KonqFrameContainer() " << this << " - " << className();
  62     delete m_pFirstChild;
  63     delete m_pSecondChild;
  64 }
  65
  66 void KonqFrameContainer::saveConfig( KConfigGroup& config, const QString &prefix, const KonqFrameBase::Options &options, KonqFrameBase* docContainer, int id, int depth )
  67 {
  68   int idSecond = id + (int)pow( 2.0, depth );
  69
  70   //write children sizes
  71   config.writeEntry( QString::fromLatin1( "SplitterSizes" ).prepend( prefix ), sizes() );
  72
  73   //write children
  74   QStringList strlst;
  75   if( firstChild() )
  76     strlst.append( QString::fromLatin1( firstChild()->frameType() ) + QString::number(idSecond - 1) );
  77   if( secondChild() )
  78     strlst.append( QString::fromLatin1( secondChild()->frameType() ) + QString::number( idSecond ) );
  79
  80   config.writeEntry( QString::fromLatin1( "Children" ).prepend( prefix ), strlst );
  81
  82   //write orientation
  83   QString o;
  84   if( orientation() == Qt::Horizontal )
  85     o = QString::fromLatin1("Horizontal");
  86   else if( orientation() == Qt::Vertical )
  87     o = QString::fromLatin1("Vertical");
  88   config.writeEntry( QString::fromLatin1( "Orientation" ).prepend( prefix ), o );
  89
  90   //write docContainer
  91   if (this == docContainer) config.writeEntry( QString::fromLatin1( "docContainer" ).prepend( prefix ), true );
  92
  93   if (m_pSecondChild == m_pActiveChild) config.writeEntry( QString::fromLatin1( "activeChildIndex" ).prepend( prefix ), 1 );
  94   else config.writeEntry( QString::fromLatin1( "activeChildIndex" ).prepend( prefix ), 0 );
  95
  96   //write child configs
  97   if( firstChild() ) {
  98     QString newPrefix = QString::fromLatin1( firstChild()->frameType() ) + QString::number(idSecond - 1);
  99     newPrefix.append( QLatin1Char( '_' ) );
 100     firstChild()->saveConfig( config, newPrefix, options, docContainer, id, depth + 1 );
 101   }
 102
 103   if( secondChild() ) {
 104     QString newPrefix = QString::fromLatin1( secondChild()->frameType() ) + QString::number( idSecond );
 105     newPrefix.append( QLatin1Char( '_' ) );
 106     secondChild()->saveConfig( config, newPrefix, options, docContainer, idSecond, depth + 1 );
 107   }
 108 }
 109
 110 void KonqFrameContainer::copyHistory( KonqFrameBase *other )
 111 {
 112     Q_ASSERT( other->frameType() == "Container" );
 113     if ( firstChild() )
 114         firstChild()->copyHistory( static_cast<KonqFrameContainer *>( other )->firstChild() );
 115     if ( secondChild() )
 116         secondChild()->copyHistory( static_cast<KonqFrameContainer *>( other )->secondChild() );
 117 }
 118
 119 KonqFrameBase* KonqFrameContainer::otherChild( KonqFrameBase* child )
 120 {
 121     if( m_pFirstChild == child )
 122         return m_pSecondChild;
 123     else if( m_pSecondChild == child )
 124         return m_pFirstChild;
 125     return 0;
 126 }
 127
 128 void KonqFrameContainer::swapChildren()
 129 {
 130     qSwap( m_pFirstChild, m_pSecondChild );
 131 }
 132
 133 void KonqFrameContainer::setTitle( const QString &title , QWidget* sender)
 134 {
 135   //kDebug(1202) << "KonqFrameContainer::setTitle( " << title << " , " << sender << " )";
 136   if (m_pParentContainer && activeChild() && (sender == activeChild()->asQWidget()))
 137       m_pParentContainer->setTitle( title , this);
 138 }
 139
 140 void KonqFrameContainer::setTabIcon( const KUrl &url, QWidget* sender )
 141 {
 142   //kDebug(1202) << "KonqFrameContainer::setTabIcon( " << url << " , " << sender << " )";
 143   if (m_pParentContainer && activeChild() && (sender == activeChild()->asQWidget()))
 144       m_pParentContainer->setTabIcon( url, this );
 145 }
 146
 147 void KonqFrameContainer::insertChildFrame(KonqFrameBase* frame, int index)
 148 {
 149     //kDebug(1202) << "KonqFrameContainer " << this << ": insertChildFrame " << frame;
 150     if (frame) {
 151         QSplitter::insertWidget(index, frame->asQWidget());
 152         // Insert before existing child? Move first to second.
 153         if (index == 0 && m_pFirstChild && !m_pSecondChild) {
 154             qSwap( m_pFirstChild, m_pSecondChild );
 155         }
 156         if( !m_pFirstChild ) {
 157             m_pFirstChild = frame;
 158             frame->setParentContainer(this);
 159             //kDebug(1202) << "Setting as first child";
 160         } else if( !m_pSecondChild ) {
 161             m_pSecondChild = frame;
 162             frame->setParentContainer(this);
 163             //kDebug(1202) << "Setting as second child";
 164         } else {
 165             kWarning(1202) << this << " already has two children..."
 166                            << m_pFirstChild << " and " << m_pSecondChild << endl;
 167         }
 168     } else {
 169         kWarning(1202) << "KonqFrameContainer " << this << ": insertChildFrame(NULL) !" ;
 170     }
 171 }
 172
 173 void KonqFrameContainer::childFrameRemoved(KonqFrameBase * frame)
 174 {
 175     //kDebug(1202) << "KonqFrameContainer::RemoveChildFrame " << this << ". Child " << frame << " removed";
 176
 177     if( m_pFirstChild == frame ) {
 178         m_pFirstChild = m_pSecondChild;
 179         m_pSecondChild = 0;
 180     } else if( m_pSecondChild == frame ) {
 181         m_pSecondChild = 0;
 182     } else {
 183         kWarning(1202) << this << " Can't find this child:" << frame ;
 184     }
 185 }
 186
 187 void KonqFrameContainer::childEvent( QChildEvent *c )
 188 {
 189     // Child events cause layout changes. These are unnecessary if we are going
 190     // to be deleted anyway.
 191     if (!m_bAboutToBeDeleted)
 192         QSplitter::childEvent(c);
 193 }
 194
 195 bool KonqFrameContainer::accept( KonqFrameVisitor* visitor )
 196 {
 197     if ( !visitor->visit( this ) )
 198         return false;
 199     Q_ASSERT( m_pFirstChild );
 200     if ( m_pFirstChild && !m_pFirstChild->accept( visitor ) )
 201         return false;
 202     Q_ASSERT( m_pSecondChild );
 203     if ( m_pSecondChild && !m_pSecondChild->accept( visitor ) )
 204         return false;
 205     if ( !visitor->endVisit( this ) )
 206         return false;
 207     return true;
 208 }
 209
 210 void KonqFrameContainer::replaceChildFrame(KonqFrameBase* oldFrame, KonqFrameBase* newFrame)
 211 {
 212     const int idx = QSplitter::indexOf(oldFrame->asQWidget());
 213     const QList<int> splitterSizes = sizes();
 214     childFrameRemoved(oldFrame);
 215     insertChildFrame(newFrame, idx);
 216     setSizes(splitterSizes);
 217 }
 218
 219 // TODO remove hasWidgetAfter
 220
 221 #include "konqframecontainer.moc"