1 files changed, 145 insertions, 0 deletions
diff --git a/karbon/commands/vreplacingcmd.cpp b/karbon/commands/vreplacingcmd.cpp
new file mode 100644
index 00000000..427ecdca
--- /dev/null
+++ b/karbon/commands/vreplacingcmd.cpp
@@ -0,0 +1,145 @@
+/* This file is part of the KDE project
+   Copyright (C) 2002, The Karbon Developers
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library 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., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+*/
+
+
+#include "vreplacingcmd.h"
+#include "vselection.h"
+#include "vdocument.h"
+
+VReplacingCmd::VReplacingCmd( VDocument* doc, const TQString& name )
+	: VCommand( doc, name )
+{
+	// Set members.
+	m_oldObjects = doc ? document()->selection()->clone() : 0L;
+	m_newObjects = 0L;
+}
+
+VReplacingCmd::~VReplacingCmd()
+{
+	delete( m_oldObjects );
+	delete( m_newObjects );
+}
+
+void
+VReplacingCmd::execute()
+{
+	// Did we have at least once a success? Otherwise we don't get inserted
+	// into the command history.
+	bool successful = false;
+
+
+	// Create new shapes if they don't exist yet.
+	if( !m_newObjects )
+	{
+		m_newObjects = new VSelection();
+
+		// Pointer to temporary object.
+		VObject* newObject;
+
+		VObjectListIterator itr( m_oldObjects->objects() );
+		VObjectList rejects;
+
+		for( ; itr.current(); ++itr )
+		{
+			// Clone object and visit the clone.
+			newObject = itr.current()->clone();
+
+			// Success.
+			if( visit( *newObject ) )
+			{
+				successful = true;
+
+				// Insert new shape right before old shape.
+				itr.current()->parent()->insertInfrontOf(
+					newObject, itr.current() );
+
+				// Add new shape to list of new objects.
+				m_newObjects->append( newObject );
+			}
+			// No success.
+			else
+			{
+				rejects.append( itr.current() );
+				// Delete temporary object.
+				delete( newObject );
+			}
+		}
+		VObjectListIterator jtr( rejects );
+		for( ; jtr.current(); ++jtr )
+		{
+			// Don't consider this object in the future anymore.
+			m_oldObjects->take( *jtr.current() );
+		}
+	}
+
+	// Nothing to do.
+	if( m_newObjects->objects().count() == 0 )
+		return;
+
+
+	VObjectListIterator itr( m_oldObjects->objects() );
+
+	// Hide old objects.
+	for( ; itr.current(); ++itr )
+	{
+		document()->selection()->take( *itr.current() );
+		itr.current()->setState( VObject::deleted );
+	}
+
+	// Show new objects.
+	for( itr = m_newObjects->objects(); itr.current(); ++itr )
+	{
+		itr.current()->setState( VObject::normal );
+		document()->selection()->append( itr.current() );
+	}
+
+
+	// Tell command history wether we had success at least once.
+	setSuccess( successful );
+}
+
+void
+VReplacingCmd::unexecute()
+{
+	// Nothing to do.
+	if( m_newObjects->objects().count() == 0 )
+		return;
+
+
+	VObjectListIterator itr( m_oldObjects->objects() );
+
+	// Show old objects.
+	for( ; itr.current(); ++itr )
+	{
+		itr.current()->setState( VObject::normal );
+		document()->selection()->append( itr.current() );
+	}
+
+	// Hide new objects.
+	for( itr = m_newObjects->objects(); itr.current(); ++itr )
+	{
+		document()->selection()->take( *itr.current() );
+		itr.current()->setState( VObject::deleted );
+	}
+
+
+	// Reset success for command history.
+	setSuccess( false );
+}
+