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Diffstat (limited to 'kpovmodeler/pmcompositeobject.cpp')
| -rw-r--r-- | kpovmodeler/pmcompositeobject.cpp | 396 |
1 files changed, 396 insertions, 0 deletions
diff --git a/kpovmodeler/pmcompositeobject.cpp b/kpovmodeler/pmcompositeobject.cpp new file mode 100644 index 00000000..c1ab704d --- /dev/null +++ b/kpovmodeler/pmcompositeobject.cpp @@ -0,0 +1,396 @@ +/* +************************************************************************** + description + -------------------- + copyright : (C) 2000-2001 by Andreas Zehender + email : zehender@kde.org +************************************************************************** + +************************************************************************** +* * +* This program is free software; you can redistribute it and/or modify * +* it under the terms of the GNU General Public License as published by * +* the Free Software Foundation; either version 2 of the License, or * +* (at your option) any later version. * +* * +**************************************************************************/ + + +#include "pmcompositeobject.h" +#include "pmxmlhelper.h" +#include "pmmemento.h" +#include "pmviewstructure.h" + +#include <qdom.h> + +PMMetaObject* PMCompositeObject::s_pMetaObject = 0; + +PMCompositeObject::PMCompositeObject( PMPart* part ) + : Base( part ) +{ + m_pFirstChild = 0; + m_pLastChild = 0; + m_selectedChildren = 0; + m_bViewStructureChanged = true; + m_pViewStructure = 0; +} + +PMCompositeObject::PMCompositeObject( const PMCompositeObject& c ) + : Base( c ) +{ + m_pFirstChild = 0; + m_pLastChild = 0; + m_selectedChildren = 0; + m_bViewStructureChanged = true; + m_pViewStructure = 0; + + PMObject* o = c.m_pFirstChild; + for( ; o; o = o->nextSibling( ) ) + appendChild( o->copy( ) ); +} + +PMCompositeObject::~PMCompositeObject( ) +{ + PMObject* tmp; + PMObject* next; + + tmp = m_pFirstChild; + + while( tmp ) + { + next = tmp->m_pNextSibling; + delete tmp; + tmp = next; + } + + if( m_pViewStructure ) + delete m_pViewStructure; +} + +PMMetaObject* PMCompositeObject::metaObject( ) const +{ + if( !s_pMetaObject ) + s_pMetaObject = new PMMetaObject( "CompositeObject", Base::metaObject( ) ); + return s_pMetaObject; +} + +void PMCompositeObject::cleanUp( ) const +{ + if( s_pMetaObject ) + { + delete s_pMetaObject; + s_pMetaObject = 0; + } + Base::cleanUp( ); +} + +PMObject* PMCompositeObject::childAt( uint index ) const +{ + PMObject* tmp; + uint i = 0; + + for( tmp = m_pFirstChild; tmp && ( i < index ); tmp = tmp->nextSibling( ) ) + i++; + return tmp; +} + +int PMCompositeObject::findChild( PMObject* o ) +{ + if( o->parent( ) != this ) + return -1; + + PMObject* tmp; + int index = 0; + + for( tmp = m_pFirstChild; tmp; tmp = tmp->nextSibling( ) ) + { + if( tmp == o ) + return index; + else + index++; + } + return -1; +} + +bool PMCompositeObject::insertChild( PMObject* o, int i ) +{ + if( i < 0 ) + return appendChild( o ); + else + { + if( i == 0 ) + { + if( canInsert( o, 0 ) ) + { + o->m_pNextSibling = m_pFirstChild; + o->m_pPrevSibling = 0; + if( m_pFirstChild ) + m_pFirstChild->m_pPrevSibling = o; + m_pFirstChild = o; + if( !m_pLastChild ) + m_pLastChild = o; + o->m_pParent = this; + } + else + return false; + } + else + { + PMObject* tmp = childAt( ( uint ) ( i - 1 ) ); + if( !tmp ) + { + kdError( PMArea ) << "Index too big" << "\n"; + return false; + } + + if( canInsert( o, tmp ) ) + { + o->m_pPrevSibling = tmp; + o->m_pNextSibling = tmp->m_pNextSibling; + if( tmp->m_pNextSibling ) + tmp->m_pNextSibling->m_pPrevSibling = o; + else + m_pLastChild = o; + tmp->m_pNextSibling = o; + o->m_pParent = this; + } + else + return false; + } + childAdded( o ); + return true; + } + return false; +} + +bool PMCompositeObject::appendChild( PMObject* o ) +{ + if( canInsert( o, m_pLastChild ) ) + { + o->m_pParent = this; + o->m_pPrevSibling = m_pLastChild; + o->m_pNextSibling = 0; + if( m_pLastChild ) + m_pLastChild->m_pNextSibling = o; + else + m_pFirstChild = o; + m_pLastChild = o; + + childAdded( o ); + return true; + } + return false; +} + +bool PMCompositeObject::insertChildAfter( PMObject* obj, PMObject* after ) +{ + if( canInsert( obj, after ) ) + { + if( after->m_pParent == this ) + { + obj->m_pParent = this; + obj->m_pPrevSibling = after; + obj->m_pNextSibling = after->m_pNextSibling; + if( after->m_pNextSibling ) + after->m_pNextSibling->m_pPrevSibling = obj; + else + m_pLastChild = obj; + after->m_pNextSibling = obj; + + childAdded( obj ); + return true; + } + else + { + kdError( PMArea ) << "Object after is no child" << "\n"; + return false; + } + } + return false; +} + +bool PMCompositeObject::insertChildBefore( PMObject* obj, PMObject* before ) +{ + if( before ) + { + if( canInsert( obj, before->m_pPrevSibling ) ) + { + if( before->m_pParent == this ) + { + obj->m_pParent = this; + obj->m_pPrevSibling = before->m_pPrevSibling; + obj->m_pNextSibling = before; + if( before->m_pPrevSibling ) + before->m_pPrevSibling->m_pNextSibling = obj; + else + m_pFirstChild = obj; + before->m_pPrevSibling = obj; + + childAdded( obj ); + return true; + } + else + { + kdError( PMArea ) << "Object before is no child" << "\n"; + return false; + } + } + } + return false; +} + +bool PMCompositeObject::takeChild( PMObject* o ) +{ + if( ( PMObject* ) this == o->m_pParent ) + { + // deselect the object and all child objects of o + if( o->isSelected( ) ) + o->setSelected( false ); + else if( o->selectedChildren( ) > 0 ) + o->deselectChildren( ); + + // remove it, but do NOT delete it. + if( o->m_pPrevSibling ) + o->m_pPrevSibling->m_pNextSibling = o->m_pNextSibling; + else + m_pFirstChild = o->m_pNextSibling; + if( o->m_pNextSibling ) + o->m_pNextSibling->m_pPrevSibling = o->m_pPrevSibling; + else + m_pLastChild = o->m_pPrevSibling; + + o->m_pParent = 0; + o->m_pPrevSibling = 0; + o->m_pNextSibling = 0; + + childRemoved( o ); + return true; + } + kdError( PMArea ) << "o is no child" << "\n"; + return false; +} + +bool PMCompositeObject::takeChild( uint i ) +{ + PMObject* tmp = childAt( i ); + if( tmp ) + return takeChild( tmp ); + kdError( PMArea ) << "Index too big"; + return false; +} + +void PMCompositeObject::serialize( QDomElement& e, QDomDocument& doc ) const +{ + PMObject* tmp; + + for( tmp = m_pFirstChild; tmp; tmp = tmp->m_pNextSibling ) + e.appendChild( tmp->serialize( doc ) ); +} + +int PMCompositeObject::countChildren( ) const +{ + int num = 0; + PMObject* tmp; + + for( tmp = m_pFirstChild; tmp; tmp = tmp->m_pNextSibling ) + num++; + return num; +} + +void PMCompositeObject::adjustSelectedChildren( int num ) +{ + m_selectedChildren += num; + if( m_selectedChildren < 0 ) + { + kdError( PMArea ) << "num too big in PMCompositeObject::adjustSelectedChildren( )\n"; + m_selectedChildren = 0; + } + if( m_pParent ) + m_pParent->adjustSelectedChildren( num ); +} + +void PMCompositeObject::deselectChildren( ) +{ + PMObject* tmp; + if( m_selectedChildren > 0 ) + { + tmp = m_pFirstChild; + while( tmp && ( m_selectedChildren > 0 ) ) + { + if( tmp->isSelected( ) ) + tmp->setSelected( false ); + else if( tmp->selectedChildren( ) > 0 ) + tmp->deselectChildren( ); + + tmp = tmp->m_pNextSibling; + } + } +} + + +PMViewStructure* PMCompositeObject::viewStructure( ) +{ + if( m_pViewStructure ) + { + if( m_pViewStructure->parameterKey( ) != viewStructureParameterKey( ) ) + { + // the default view structure or the parameters (detail level) + // have changed + m_bViewStructureChanged = true; + delete m_pViewStructure; + m_pViewStructure = 0; + } + } + + if( m_bViewStructureChanged ) + { + PMViewStructure* dvs = defaultViewStructure( ); + if( dvs ) + if( dvs->parameterKey( ) == -1 ) // newly created view structure + dvs->setParameterKey( viewStructureParameterKey( ) ); + + if( isDefault( ) ) + { + if( dvs ) + { + if( m_pViewStructure ) + { + if( *m_pViewStructure != *dvs ) + { + delete m_pViewStructure; + m_pViewStructure = new PMViewStructure( dvs ); + } + } + else + m_pViewStructure = new PMViewStructure( dvs ); + } + + if( !m_pViewStructure ) + kdError( PMArea ) << "isDefault( ) returned true, but no default view structure is provided\n"; + } + else + { + if( dvs ) + { + if( m_pViewStructure && ( *m_pViewStructure == *dvs ) ) + { + delete m_pViewStructure; + m_pViewStructure = 0; + } + } + createViewStructure( ); + if( m_pViewStructure ) + m_pViewStructure->setParameterKey( viewStructureParameterKey( ) ); + } + m_bViewStructureChanged = false; + } + return m_pViewStructure; +} + +void PMCompositeObject::setViewStructureChanged( ) +{ + m_bViewStructureChanged = true; + if( m_pMemento ) + m_pMemento->setViewStructureChanged( ); +} + |