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+/* 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.
+*/
+
+#ifndef __VSELECTION_H__
+#define __VSELECTION_H__
+
+
+#include <qptrlist.h>
+
+#include <KoRect.h>
+
+#include "vobject.h"
+#include "vvisitor.h"
+#include <koffice_export.h>
+class KoPoint;
+class QObject;
+class VPainter;
+class VVisitor;
+class VSegment;
+
+typedef QPtrList<VObject> VObjectList;
+typedef QPtrListIterator<VObject> VObjectListIterator;
+
+
+/// Ids of manipulation nodes.
+enum VHandleNode
+{
+ node_none = 0,
+ node_lt = 1,
+ node_mt = 2,
+ node_rt = 3,
+ node_lm = 4,
+ node_mm = 5,
+ node_rm = 6,
+ node_lb = 7,
+ node_mb = 8,
+ node_rb = 9
+};
+
+
+/**
+ * VSelection manages a set of selected vobjects.
+ */
+class KARBONBASE_EXPORT VSelection : public VObject, public VVisitor
+{
+public:
+ /**
+ * Constructs a vselection with the specified parent.
+ *
+ * @param parent the selection's parent
+ */
+ VSelection( VObject* parent = 0L );
+
+ /**
+ * Constructs a vselection by copying the specified selection.
+ *
+ * @param selection the selection to copy from
+ */
+ VSelection( const VSelection& selection );
+
+ /**
+ * Destroys the selection.
+ */
+ virtual ~VSelection();
+
+ /**
+ * Paint selected objects outline and handle.
+ */
+ void draw( VPainter* painter, double zoomFactor ) const;
+
+ virtual const KoRect& boundingBox() const;
+
+ virtual VSelection* clone() const;
+
+ virtual void accept( VVisitor& visitor );
+
+ /**
+ * Adds all objects to the selection.
+ */
+ void append();
+
+ /**
+ * Adds an object to the selection.
+ */
+ void append( VObject* object );
+
+ /**
+ * Adds all objects of the specified object list to the selection.
+ *
+ * @param objects the list of objects to add
+ */
+ void append( const VObjectList &objects );
+
+ /**
+ * Adds all objects ( selectObjects == true ) or all nodes
+ * ( selectObjects == false ) within rect to the selection.
+ */
+ bool append( const KoRect& rect, bool selectObjects = true, bool exclusive = true );
+
+ /**
+ * Removes the reference to the object, not the object itself.
+ */
+ void take( VObject& object );
+
+ /**
+ * Removes all objects ( selectObjects == true ) or all nodes
+ * ( selectObjects == false ) within rect from the selection.
+ */
+ bool take( const KoRect& rect, bool selectObjects = true, bool exclusive = true );
+
+ /**
+ * Removes the references to all objects, not the objects themselves.
+ */
+ void clear();
+
+ /**
+ * Read only access to the selected objects.
+ */
+ const VObjectList& objects() const { return m_objects; }
+
+ /**
+ * Returns a list of segments that have at least one control point inside the specified rect.
+ *
+ * @param rect the selection rect
+ * @return the list of segments
+ */
+ QPtrList<VSegment> getSegments( const KoRect& rect );
+
+ /**
+ * Selects or deselects all nodes.
+ *
+ * @param select controls if nodes are selected or deselected
+ */
+ void selectNodes( bool select = true );
+
+ /**
+ * Returns the handle node id, the KoPoint is inside.
+ *
+ * @param point the selection point
+ * @return the handle the point is inside or node_none if point is not inside any node
+ */
+ VHandleNode handleNode( const KoPoint &point ) const;
+
+ /**
+ * Toggle selection handles on/off.
+ *
+ * @param handle controls if handle are shown or not
+ */
+ void showHandle( bool handle = true ) { m_showhandle = handle; }
+
+ /**
+ * Toggles selection of objects/nodes.
+ *
+ * @param selectObjects controls if objects or nodes are selected
+ */
+ virtual void setSelectObjects( bool selectObjects = true ) { m_selectObjects = selectObjects; }
+
+ static void setHandleSize( uint size )
+ { m_handleNodeSize = size; }
+
+ static uint handleSize()
+ { return m_handleNodeSize; }
+private:
+ /**
+ * Show/Hide handle.
+ */
+ bool m_showhandle;
+
+ /**
+ * Select objects and not nodes?
+ */
+ bool m_selectObjects;
+
+ /**
+ * The list of currently selected objects.
+ */
+ VObjectList m_objects;
+
+ /**
+ * Paint coordinates of handle rectangle and handle nodes.
+ * Used for handle node determination and handle node drawing.
+ */
+ KoRect *m_handleRect;
+
+ /**
+ * Paint size of nodes.
+ */
+ static uint m_handleNodeSize;
+};
+
+#endif
+