Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_SLIDESHOW_SUBSETTABLESHAPEMANAGER_HXX
      21             : #define INCLUDED_SLIDESHOW_SUBSETTABLESHAPEMANAGER_HXX
      22             : 
      23             : #include "shapemanager.hxx"
      24             : #include "intrinsicanimationeventhandler.hxx"
      25             : #include <boost/shared_ptr.hpp>
      26             : 
      27             : /* Definition of SubsettableShapeManager interface */
      28             : 
      29             : namespace slideshow
      30             : {
      31             :     namespace internal
      32             :     {
      33             :         class DocTreeNode;
      34             :         class AttributableShape;
      35             : 
      36             :         /** SubsettableShapeManager interface
      37             : 
      38             :             Implementers of this interface manage creation and
      39             :             revocation of shape subsets. Shape subsets are shapes that
      40             :             represent (and animate) only parts of an original's shape
      41             :             content.
      42             :          */
      43           0 :         class SubsettableShapeManager : public ShapeManager
      44             :         {
      45             :         public:
      46             :             /** Query a subset of the given original shape
      47             : 
      48             :                 This method queries a new (but not necessarily unique)
      49             :                 shape, which displays only the given subset of the
      50             :                 original one. Calling this method multiple times with
      51             :                 the same original shape and DocTreeNode content always
      52             :                 returns the same shape.
      53             : 
      54             :                 Requesting a subset from an original shape leads to
      55             :                 the original shape ceasing to display the subsetted
      56             :                 content. In other words, shape content is always
      57             :                 displayed in exactly one shape.
      58             : 
      59             :                 @param rOrigShape
      60             :                 The shape the subset is to be created for
      61             : 
      62             :                 @param rSubsetShape
      63             :                 The subset to display in the generated shape.
      64             :              */
      65             :             virtual boost::shared_ptr<AttributableShape> getSubsetShape(
      66             :                 const boost::shared_ptr<AttributableShape>& rOrigShape,
      67             :                 const DocTreeNode&                          rTreeNode ) = 0;
      68             : 
      69             :             /** Revoke a previously queried subset shape.
      70             : 
      71             :                 With this method, a previously requested subset shape
      72             :                 is revoked again. If the last client revokes a given
      73             :                 subset, it will cease to be displayed, and the
      74             :                 original shape will again show the subset data.
      75             : 
      76             :                 @param rOrigShape
      77             :                 The shape the subset was created from
      78             : 
      79             :                 @param rSubsetShape
      80             :                 The subset created from rOrigShape
      81             :              */
      82             :             virtual void revokeSubset(
      83             :                 const boost::shared_ptr<AttributableShape>& rOrigShape,
      84             :                 const boost::shared_ptr<AttributableShape>& rSubsetShape ) = 0;
      85             : 
      86             :             // Evil hackish way of getting intrinsic animation slide-wise
      87             : 
      88             :             /** Register an event handler that will be called when
      89             :                 user paint parameters change.
      90             : 
      91             :                 @param rHandler
      92             :                 Handler to call when a shape listener changes
      93             :             */
      94             :             virtual void addIntrinsicAnimationHandler( const IntrinsicAnimationEventHandlerSharedPtr& rHandler ) = 0;
      95             :             virtual void removeIntrinsicAnimationHandler( const IntrinsicAnimationEventHandlerSharedPtr& rHandler ) = 0;
      96             : 
      97             :             /** Notify that shape-intrinsic animations are now enabled.
      98             : 
      99             :                 @return true, if this event was processed by
     100             :                 anybody. If false is returned, no handler processed
     101             :                 this event (and probably, nothing will happen at all)
     102             :             */
     103             :             virtual bool notifyIntrinsicAnimationsEnabled() = 0;
     104             : 
     105             :             /** Notify that shape-intrinsic animations are now disabled.
     106             : 
     107             :                 @return true, if this event was processed by
     108             :                 anybody. If false is returned, no handler processed
     109             :                 this event (and probably, nothing will happen at all)
     110             :             */
     111             :             virtual bool notifyIntrinsicAnimationsDisabled() = 0;
     112             :         };
     113             : 
     114             :         typedef ::boost::shared_ptr< SubsettableShapeManager > SubsettableShapeManagerSharedPtr;
     115             :     }
     116             : }
     117             : 
     118             : #endif /* INCLUDED_SLIDESHOW_SUBSETTABLESHAPEMANAGER_HXX */
     119             : 
     120             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */