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/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 233 insertions, 0 deletions

diff --git a/kpovmodeler/pmaddcommand.cpp b/kpovmodeler/pmaddcommand.cpp
new file mode 100644
index 00000000..b8d4ea49
--- /dev/null
+++ b/kpovmodeler/pmaddcommand.cpp
@@ -0,0 +1,233 @@
+/*
+**************************************************************************
+                                 description
+                             --------------------
+    copyright            : (C) 2000-2001 by Andreas Zehender
+    email                : [email protected]
+**************************************************************************
+
+**************************************************************************
+*                                                                        *
+*  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 "pmaddcommand.h"
+#include "pmcommandmanager.h"
+#include "pmpart.h"
+#include "pmdeclare.h"
+#include "pmerrorflags.h"
+#include "pmrecursiveobjectiterator.h"
+#include "pmmemento.h"
+
+#include <klocale.h>
+
+PMAddCommand::PMAddCommand( PMObject* obj, PMObject* parent, PMObject* after )
+      : PMCommand( i18n( "Add New %1" ).arg( obj->description( ) ) )
+{
+   m_objects.append( obj );
+   m_pParent = parent;
+   m_pAfter = after;
+   m_executed = false;
+   m_firstExecution = true;
+   m_linksCreated = false;
+   m_pParentChangeMemento = 0;
+}
+
+PMAddCommand::PMAddCommand( const PMObjectList& list, PMObject* parent,
+                            PMObject* after )
+      : PMCommand( i18n( "Add Objects" ) )
+{
+   m_objects = list;
+   m_pParent = parent;
+   m_pAfter = after;
+   m_executed = false;
+   m_firstExecution = true;
+   m_linksCreated = false;
+   m_pParentChangeMemento = 0;
+}
+
+PMAddCommand::~PMAddCommand( )
+{
+   if( !m_executed )
+   {
+      m_objects.setAutoDelete( true );
+      m_objects.clear( );
+   }
+
+   m_insertErrors.setAutoDelete( true );
+   m_insertErrors.clear( );
+}
+
+void PMAddCommand::execute( PMCommandManager* theManager )
+{
+   if( !m_executed )
+   {
+      PMObjectListIterator it( m_objects );
+      PMObject* prev = m_pAfter;
+      PMObjectList errors;
+      PMObject* current;
+      bool error = false;
+
+      if( m_firstExecution )
+         if( m_pParent->dataChangeOnInsertRemove( ) )
+            m_pParent->createMemento( );
+      
+      for( ; it.current( ); ++it )
+      {
+         current = it.current( );
+         if( !prev )
+         {
+            if( m_pParent->canInsert( current, 0 ) )
+            {
+               m_pParent->insertChild( current, 0 );
+               prev = current;
+               theManager->cmdObjectChanged( current, PMCAdd );
+            }
+            else
+               error = true;
+         }
+         else
+         {
+            if( m_pParent->canInsert( current, prev ) )
+            {
+               m_pParent->insertChildAfter( current, prev );
+               prev = current;
+               theManager->cmdObjectChanged( current, PMCAdd );
+            }
+            else
+               error = true;
+         }
+         
+         if( error )
+         {
+            errors.append( current );
+            theManager->cmdObjectChanged( current, PMCAdd | PMCInsertError );
+            if( current->isA( "Declare" ) )
+            {
+               // the object, that couldn't be inserted was a declare,
+               // remove all links
+               PMObjectListIterator links =
+                  ( ( PMDeclare* ) current )->linkedObjects( );
+               for( ; links.current( ); ++links )
+               {
+                  PMObject* l = links.current( );
+                  if( l->parent( ) )
+                     l->parent( )->takeChild( l );
+                  else
+                     m_objects.removeRef( l );
+                  m_insertErrors.append( l );
+               }
+            }
+            if( current->linkedObject( ) )
+               current->linkedObject( )->removeLinkedObject( current );
+            error = false;
+         }
+      }
+
+      if( m_pParent->mementoCreated( ) )
+         m_pParentChangeMemento = m_pParent->takeMemento( );
+
+      if( m_pParentChangeMemento )
+      {
+         PMObjectChangeListIterator c = m_pParentChangeMemento->changedObjects( );
+         for( ; c.current( ); ++c )
+            theManager->cmdObjectChanged( c.current( )->object( ),
+                                          c.current( )->mode( ) );
+      }
+
+      if( m_linksCreated )
+      {
+         PMObjectListIterator rit( m_links );
+         for( ; rit.current( ); ++rit )
+            rit.current( )->linkedObject( )->addLinkedObject( rit.current( ) );
+         PMObjectListIterator dit( m_linkedDeclares );
+         for( ; dit.current( ); ++dit )
+            theManager->cmdObjectChanged( dit.current( ), PMCData );
+      }
+      
+      PMObjectListIterator errorit( errors );
+      for( ; errorit.current( ); ++errorit )
+      {
+         m_objects.removeRef( errorit.current( ) );
+         m_insertErrors.append( errorit.current( ) );
+
+         PMRecursiveObjectIterator lit( errorit.current( ) );
+         for( ; lit.current( ); ++lit )
+            if( lit.current( )->linkedObject( ) )
+               lit.current( )->linkedObject( )->removeLinkedObject( lit.current( ) );
+      }
+      
+      m_executed = true;
+      m_firstExecution = false;
+   }
+}
+
+void PMAddCommand::undo( PMCommandManager* theManager )
+{
+   if( m_executed )
+   {
+      PMObjectListIterator it( m_objects );
+      PMObject* obj;
+      PMDeclare* decl;
+
+      if( !m_linksCreated )
+      {
+         for( ; it.current( ); ++it )
+         {
+            PMRecursiveObjectIterator lit( it.current( ) );
+            for( ; lit.current( ); ++lit )
+            {
+               decl = lit.current( )->linkedObject( );
+               if( decl )
+               {
+                  m_links.append( lit.current( ) );
+                  if( !m_linkedDeclares.containsRef( decl ) )
+                     m_linkedDeclares.append( decl );
+               }
+            }
+         }
+         m_linksCreated = true;
+      }
+
+      PMObjectListIterator rit( m_links );
+      for( ; rit.current( ); ++rit )
+         rit.current( )->linkedObject( )->removeLinkedObject( rit.current( ) );
+      
+      for( it.toLast( ) ; it.current( ); --it )
+      {
+         obj = it.current( );
+         // signal has to be emitted before the item is removed
+         theManager->cmdObjectChanged( obj, PMCRemove );
+
+         if( obj->parent( ) )
+            obj->parent( )->takeChild( obj );
+      }
+
+      if( m_pParentChangeMemento )
+      {
+         m_pParent->restoreMemento( m_pParentChangeMemento );
+         PMObjectChangeListIterator c = m_pParentChangeMemento->changedObjects( );
+         for( ; c.current( ); ++c )
+         {
+            theManager->cmdObjectChanged( c.current( )->object( ),
+                                          c.current( )->mode( ) );
+         }
+      }
+      
+      PMObjectListIterator dit( m_linkedDeclares );
+      for( ; dit.current( ); ++dit )
+         theManager->cmdObjectChanged( dit.current( ), PMCData );
+      
+      m_executed = false;
+   }
+}
+
+int PMAddCommand::errorFlags( PMPart* )
+{
+   return PMENone;
+}