1 files changed, 328 insertions, 0 deletions
diff --git a/karbon/core/vselection.cpp b/karbon/core/vselection.cpp
new file mode 100644
index 00000000..5a10373f
--- /dev/null
+++ b/karbon/core/vselection.cpp
@@ -0,0 +1,328 @@
+/* This file is part of the KDE project
+   Copyright (C) 2001, The Karbon Developers
+   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 "vdocument.h"
+#include "vdrawselection.h"
+#include "vpainter.h"
+#include "vselection.h"
+#include "vselectnodes.h"
+#include "vselectobjects.h"
+#include "vvisitor.h"
+#include "vcolor.h"
+#include "vfill.h"
+#include "vstroke.h"
+
+uint VSelection::m_handleNodeSize = 3;
+
+VSelection::VSelection( VObject* parent )
+	: VObject( parent ), m_showhandle( true )
+{
+	m_handleRect = new KoRect[ 10 ];
+	setStroke( VStroke( VColor( TQt::black ) ) );
+	setFill( VFill() );
+
+	m_selectObjects = true;
+}
+
+VSelection::VSelection( const VSelection& selection )
+	: VObject( selection ), VVisitor()
+{
+	m_handleRect = new KoRect[ 10 ];
+
+	VObjectListIterator itr = selection.m_objects;
+	for ( ; itr.current() ; ++itr )
+		append( itr.current() );	// Don't clone objects here.
+
+	m_showhandle = true;
+	m_selectObjects = selection.m_selectObjects;
+}
+
+VSelection::~VSelection()
+{
+	//clear();
+	delete[]( m_handleRect );
+}
+
+VSelection*
+VSelection::clone() const
+{
+	return new VSelection( *this );
+}
+
+void
+VSelection::accept( VVisitor& visitor )
+{
+	visitor.visitVSelection( *this );
+}
+
+void
+VSelection::take( VObject& object )
+{
+	m_objects.removeRef( &object );
+	if( object.state() >= selected )
+		object.setState( normal );
+	invalidateBoundingBox();
+}
+
+bool
+VSelection::take( const KoRect& rect, bool selectObjects, bool exclusive )
+{
+	bool success = false;
+
+	if( selectObjects )
+	{
+		VSelectObjects op( m_objects, rect, false );
+		if( op.visit( *static_cast<VDocument*>( parent() ) ) )
+		{
+			selectNodes();
+			success = true;
+		}
+	}
+	else
+	{
+		VObjectListIterator itr( m_objects );
+
+		// Try to deselect all that have at least one node contained in the rect
+		for ( ; itr.current(); ++itr )
+		{
+			VSelectNodes op( rect, false, exclusive );
+
+			if( op.visit( *itr.current() ) )
+			{
+				success = true;
+			}
+		}
+	}
+
+	invalidateBoundingBox();
+
+	return success;
+}
+
+void
+VSelection::append()
+{
+	clear();
+
+	VSelectObjects op( m_objects );
+	op.visit( *static_cast<VDocument*>( parent() ) );
+	selectNodes();
+
+	invalidateBoundingBox();
+}
+
+void
+VSelection::append( VObject* object )
+{
+	// only append if item is not deleted or not already in list
+	if( object->state() != deleted )
+	{
+		if( ! m_objects.containsRef( object ) )
+			m_objects.append( object );
+		object->setState( selected );
+		invalidateBoundingBox();
+	}
+}
+
+void
+VSelection::append( const VObjectList &objects )
+{
+	VObjectListIterator itr = objects;
+	for( ; itr.current(); ++itr )
+		append( itr.current() );
+}
+
+bool
+VSelection::append( const KoRect& rect, bool selectObjects, bool exclusive )
+{
+	bool success = false;
+
+	if( selectObjects )
+	{
+		//m_objects.clear();
+		VSelectObjects op( m_objects, rect );
+		if( op.visit( *static_cast<VDocument*>( parent() ) ) )
+		{
+			selectNodes();
+			success = true;
+		}
+	}
+	else
+	{
+		VObjectListIterator itr( m_objects );
+		VObjectList notSelected;
+
+		// Try to select all that have at least one node contained in the rect
+		for ( ; itr.current(); ++itr )
+		{
+			VSelectNodes op( rect, true, exclusive );
+
+			if( op.visit( *itr.current() ) )
+				success = true;
+			else
+				notSelected.append( itr.current());
+		}
+		// Remove all that were not selected from this selection
+		VObjectListIterator jtr( notSelected );
+		for ( ; jtr.current(); ++jtr )
+			take( *( jtr.current() ) );
+	}
+
+	invalidateBoundingBox();
+
+	return success;
+}
+
+void
+VSelection::clear()
+{
+	VSelectNodes op( true );
+
+	VObjectListIterator itr = m_objects;
+	for( ; itr.current(); ++itr )
+	{
+		op.visit( *itr.current() );
+
+		//if( itr.current()->state() != deleted )
+		//	itr.current()->setState( normal );
+	}
+
+	m_objects.clear();
+	invalidateBoundingBox();
+}
+
+void
+VSelection::draw( VPainter* painter, double zoomFactor ) const
+{
+	if( objects().count() == 0 || state() == VObject::edit )
+		return;
+
+	VDrawSelection op( m_objects, painter, !m_selectObjects, m_handleNodeSize );
+	op.visitVSelection( (VSelection &)*this );
+
+	// get bounding box:
+	const KoRect& rect = boundingBox();
+
+	// calculate displaycoords of big handle rect:
+	m_handleRect[ 0 ].setCoords(	tqRound( rect.left() ), tqRound( rect.top() ),
+									tqRound( rect.right() ), tqRound( rect.bottom() ) );
+
+	KoPoint center = m_handleRect[ 0 ].center();
+
+	double handleNodeSize = m_handleNodeSize / zoomFactor;
+
+	// calculate displaycoords of nodes:
+	m_handleRect[ node_lb ].setRect( m_handleRect[0].left() - handleNodeSize, m_handleRect[0].top() - handleNodeSize, 2 * handleNodeSize, 2 * handleNodeSize );
+	m_handleRect[ node_mb ].setRect( center.x() - handleNodeSize, m_handleRect[0].top() - handleNodeSize, 2 * handleNodeSize, 2 * handleNodeSize );
+	m_handleRect[ node_rb ].setRect( m_handleRect[0].right() - handleNodeSize - (1 / zoomFactor), m_handleRect[0].top() - handleNodeSize, 2 * handleNodeSize, 2 * handleNodeSize );
+	m_handleRect[ node_rm ].setRect( m_handleRect[0].right() - handleNodeSize - (1 / zoomFactor), center.y() - handleNodeSize, 2 * handleNodeSize, 2 * handleNodeSize );
+	m_handleRect[ node_rt ].setRect( m_handleRect[0].right() - handleNodeSize - (1 / zoomFactor) , m_handleRect[0].bottom() - handleNodeSize - (1 / zoomFactor), 2 * handleNodeSize, 2 * handleNodeSize );
+	m_handleRect[ node_mt ].setRect( center.x() - handleNodeSize, m_handleRect[0].bottom() - handleNodeSize - (1 / zoomFactor), 2 * handleNodeSize, 2 * handleNodeSize );
+	m_handleRect[ node_lt ].setRect( m_handleRect[0].left() - handleNodeSize, m_handleRect[0].bottom() - handleNodeSize - (1 / zoomFactor), 2 * handleNodeSize, 2 * handleNodeSize );
+	m_handleRect[ node_lm ].setRect( m_handleRect[0].left() - handleNodeSize, center.y() - handleNodeSize, 2 * handleNodeSize, 2 * handleNodeSize );
+
+	if( !m_showhandle ) return;
+
+	// draw handle rect:
+	painter->setPen( TQt::blue.light() );
+	painter->setBrush( TQt::NoBrush );
+
+	painter->drawRect( KoRect( m_handleRect[ 0 ].x() * zoomFactor, m_handleRect[ 0 ].y() * zoomFactor,
+							  m_handleRect[ 0 ].width() * zoomFactor, m_handleRect[ 0 ].height() * zoomFactor ) );
+	painter->setPen( TQt::blue.light() );
+
+	// draw nodes:
+	if( state() == VObject::selected )
+	{
+		painter->setPen( TQt::blue.light() );
+		painter->setBrush( TQt::white );
+
+		KoRect temp;
+		for( uint i = node_lt; i <= node_rb; ++i )
+		{
+			if( i != node_mm )
+			{
+				temp.setRect(	zoomFactor * m_handleRect[ i ].left(),
+								zoomFactor * m_handleRect[ i ].top(),
+								2 * m_handleNodeSize + 1, 2 * m_handleNodeSize + 1 );
+				painter->drawRect( temp );
+			}
+		}
+	}
+}
+
+const KoRect&
+VSelection::boundingBox() const
+{
+// disable bbox caching for selection since there is no reliable
+// way to get notified of a bbox change:
+//	if( m_boundingBoxIsInvalid )
+//	{
+		// clear:
+		m_boundingBox = KoRect();
+
+		VObjectListIterator itr = m_objects;
+		for( ; itr.current(); ++itr )
+			m_boundingBox |= itr.current()->boundingBox();
+
+//		m_boundingBoxIsInvalid = false;
+//	}
+
+	return m_boundingBox;
+}
+
+
+VHandleNode
+VSelection::handleNode( const KoPoint &point ) const
+{
+	for( uint i = node_lt; i <= node_rb; ++i )
+	{
+		if( m_handleRect[i].contains( point ) )
+			return static_cast<VHandleNode>( i );
+	}
+
+	return node_none;
+}
+
+TQPtrList<VSegment>
+VSelection::getSegments( const KoRect& rect )
+{
+	VTestNodes op( rect );
+
+	VObjectListIterator itr = m_objects;
+	for( ; itr.current(); ++itr )
+		op.visit( *itr.current() );
+
+	return op.result();
+}
+
+void
+VSelection::selectNodes( bool select )
+{
+	VSelectNodes op( select );
+
+	VObjectListIterator itr = m_objects;
+	for( ; itr.current(); ++itr )
+	{
+		op.visit( *itr.current() );
+	}
+}
+