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     delete m_pFirstChild;
  62     delete m_pSecondChild;
  63 }
  64
  65 void KonqFrameContainer::saveConfig( KConfigGroup& config, const QString &prefix, const KonqFrameBase::Options &options, KonqFrameBase* docContainer, int id, int depth )
  66 {
  67   int idSecond = id + (int)pow( 2.0, depth );
  68
  69   //write children sizes
  70   config.writeEntry( QString::fromLatin1( "SplitterSizes" ).prepend( prefix ), sizes() );
  71
  72   //write children
  73   QStringList strlst;
  74   if( firstChild() )
  75       strlst.append( KonqFrameBase::frameTypeToString(firstChild()->frameType()) + QString::number(idSecond - 1) );
  76   if( secondChild() )
  77       strlst.append( KonqFrameBase::frameTypeToString(secondChild()->frameType()) + QString::number( idSecond ) );
  78
  79   config.writeEntry( QString::fromLatin1( "Children" ).prepend( prefix ), strlst );
  80
  81   //write orientation
  82   QString o;
  83   if( orientation() == Qt::Horizontal )
  84     o = QString::fromLatin1("Horizontal");
  85   else if( orientation() == Qt::Vertical )
  86     o = QString::fromLatin1("Vertical");
  87   config.writeEntry( QString::fromLatin1( "Orientation" ).prepend( prefix ), o );
  88
  89   //write docContainer
  90   if (this == docContainer) config.writeEntry( QString::fromLatin1( "docContainer" ).prepend( prefix ), true );
  91
  92   if (m_pSecondChild == m_pActiveChild) config.writeEntry( QString::fromLatin1( "activeChildIndex" ).prepend( prefix ), 1 );
  93   else config.writeEntry( QString::fromLatin1( "activeChildIndex" ).prepend( prefix ), 0 );
  94
  95   //write child configs
  96   if( firstChild() ) {
  97       QString newPrefix = KonqFrameBase::frameTypeToString(firstChild()->frameType()) + QString::number(idSecond - 1);
  98     newPrefix.append( QLatin1Char( '_' ) );
  99     firstChild()->saveConfig( config, newPrefix, options, docContainer, id, depth + 1 );
 100   }
 101
 102   if( secondChild() ) {
 103       QString newPrefix = KonqFrameBase::frameTypeToString(secondChild()->frameType()) + QString::number( idSecond );
 104     newPrefix.append( QLatin1Char( '_' ) );
 105     secondChild()->saveConfig( config, newPrefix, options, docContainer, idSecond, depth + 1 );
 106   }
 107 }
 108
 109 void KonqFrameContainer::copyHistory( KonqFrameBase *other )
 110 {
 111     Q_ASSERT(other->frameType() == KonqFrameBase::Container);
 112     if ( firstChild() )
 113         firstChild()->copyHistory( static_cast<KonqFrameContainer *>( other )->firstChild() );
 114     if ( secondChild() )
 115         secondChild()->copyHistory( static_cast<KonqFrameContainer *>( other )->secondChild() );
 116 }
 117
 118 KonqFrameBase* KonqFrameContainer::otherChild( KonqFrameBase* child )
 119 {
 120     if( m_pFirstChild == child )
 121         return m_pSecondChild;
 122     else if( m_pSecondChild == child )
 123         return m_pFirstChild;
 124     return 0;
 125 }
 126
 127 void KonqFrameContainer::swapChildren()
 128 {
 129     qSwap( m_pFirstChild, m_pSecondChild );
 130 }
 131
 132 void KonqFrameContainer::setTitle( const QString &title , QWidget* sender)
 133 {
 134     //kDebug(1202) << title << sender;
 135   if (m_pParentContainer && activeChild() && (sender == activeChild()->asQWidget()))
 136       m_pParentContainer->setTitle( title , this);
 137 }
 138
 139 void KonqFrameContainer::setTabIcon( const KUrl &url, QWidget* sender )
 140 {
 141     //kDebug(1202) << url << sender;
 142   if (m_pParentContainer && activeChild() && (sender == activeChild()->asQWidget()))
 143       m_pParentContainer->setTabIcon( url, this );
 144 }
 145
 146 void KonqFrameContainer::insertChildFrame(KonqFrameBase* frame, int index)
 147 {
 148     //kDebug(1202) << this << frame;
 149     if (frame) {
 150         QSplitter::insertWidget(index, frame->asQWidget());
 151         // Insert before existing child? Move first to second.
 152         if (index == 0 && m_pFirstChild && !m_pSecondChild) {
 153             qSwap( m_pFirstChild, m_pSecondChild );
 154         }
 155         if( !m_pFirstChild ) {
 156             m_pFirstChild = frame;
 157             frame->setParentContainer(this);
 158             //kDebug(1202) << "Setting as first child";
 159         } else if( !m_pSecondChild ) {
 160             m_pSecondChild = frame;
 161             frame->setParentContainer(this);
 162             //kDebug(1202) << "Setting as second child";
 163         } else {
 164             kWarning(1202) << this << "already has two children..."
 165                            << m_pFirstChild << "and" << m_pSecondChild;
 166         }
 167     } else {
 168         kWarning(1202) << "KonqFrameContainer" << this << ": insertChildFrame(NULL)!" ;
 169     }
 170 }
 171
 172 void KonqFrameContainer::childFrameRemoved(KonqFrameBase * frame)
 173 {
 174     //kDebug(1202) << this << "Child" << frame << "removed";
 175
 176     if( m_pFirstChild == frame ) {
 177         m_pFirstChild = m_pSecondChild;
 178         m_pSecondChild = 0;
 179     } else if( m_pSecondChild == frame ) {
 180         m_pSecondChild = 0;
 181     } else {
 182         kWarning(1202) << this << "Can't find this child:" << frame ;
 183     }
 184 }
 185
 186 void KonqFrameContainer::childEvent( QChildEvent *c )
 187 {
 188     // Child events cause layout changes. These are unnecessary if we are going
 189     // to be deleted anyway.
 190     if (!m_bAboutToBeDeleted)
 191         QSplitter::childEvent(c);
 192 }
 193
 194 bool KonqFrameContainer::accept( KonqFrameVisitor* visitor )
 195 {
 196     if ( !visitor->visit( this ) )
 197         return false;
 198     Q_ASSERT( m_pFirstChild );
 199     if ( m_pFirstChild && !m_pFirstChild->accept( visitor ) )
 200         return false;
 201     Q_ASSERT( m_pSecondChild );
 202     if ( m_pSecondChild && !m_pSecondChild->accept( visitor ) )
 203         return false;
 204     if ( !visitor->endVisit( this ) )
 205         return false;
 206     return true;
 207 }
 208
 209 void KonqFrameContainer::replaceChildFrame(KonqFrameBase* oldFrame, KonqFrameBase* newFrame)
 210 {
 211     const int idx = QSplitter::indexOf(oldFrame->asQWidget());
 212     const QList<int> splitterSizes = sizes();
 213     childFrameRemoved(oldFrame);
 214     insertChildFrame(newFrame, idx);
 215     setSizes(splitterSizes);
 216 }
 217
 218 // TODO remove hasWidgetAfter
 219
 220 #include "konqframecontainer.moc"