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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_SLIDESHOW_SOURCE_INC_SUBSETTABLESHAPEMANAGER_HXX
+#define INCLUDED_SLIDESHOW_SOURCE_INC_SUBSETTABLESHAPEMANAGER_HXX
+
+#include "shapemanager.hxx"
+#include "intrinsicanimationeventhandler.hxx"
+#include <memory>
+
+/* Definition of SubsettableShapeManager interface */
+
+namespace slideshow::internal
+ {
+ class DocTreeNode;
+ class AttributableShape;
+ typedef ::std::shared_ptr< AttributableShape > AttributableShapeSharedPtr;
+
+ /** SubsettableShapeManager interface
+
+ Implementers of this interface manage creation and
+ revocation of shape subsets. Shape subsets are shapes that
+ represent (and animate) only parts of an original's shape
+ content.
+ */
+ class SubsettableShapeManager : public ShapeManager
+ {
+ public:
+ /** Query a subset of the given original shape
+
+ This method queries a new (but not necessarily unique)
+ shape, which displays only the given subset of the
+ original one. Calling this method multiple times with
+ the same original shape and DocTreeNode content always
+ returns the same shape.
+
+ Requesting a subset from an original shape leads to
+ the original shape ceasing to display the subsetted
+ content. In other words, shape content is always
+ displayed in exactly one shape.
+
+ @param rOrigShape
+ The shape the subset is to be created for
+
+ @param rSubsetShape
+ The subset to display in the generated shape.
+ */
+ virtual AttributableShapeSharedPtr getSubsetShape(
+ const AttributableShapeSharedPtr& rOrigShape,
+ const DocTreeNode& rTreeNode ) = 0;
+
+ /** Revoke a previously queried subset shape.
+
+ With this method, a previously requested subset shape
+ is revoked again. If the last client revokes a given
+ subset, it will cease to be displayed, and the
+ original shape will again show the subset data.
+
+ @param rOrigShape
+ The shape the subset was created from
+
+ @param rSubsetShape
+ The subset created from rOrigShape
+ */
+ virtual void revokeSubset(
+ const AttributableShapeSharedPtr& rOrigShape,
+ const AttributableShapeSharedPtr& rSubsetShape ) = 0;
+
+ // Evil hackish way of getting intrinsic animation slide-wise
+
+ /** Register an event handler that will be called when
+ user paint parameters change.
+
+ @param rHandler
+ Handler to call when a shape listener changes
+ */
+ virtual void addIntrinsicAnimationHandler( const IntrinsicAnimationEventHandlerSharedPtr& rHandler ) = 0;
+ virtual void removeIntrinsicAnimationHandler( const IntrinsicAnimationEventHandlerSharedPtr& rHandler ) = 0;
+
+ /** Notify that shape-intrinsic animations are now enabled.
+ */
+ virtual void notifyIntrinsicAnimationsEnabled() = 0;
+
+ /** Notify that shape-intrinsic animations are now disabled.
+ */
+ virtual void notifyIntrinsicAnimationsDisabled() = 0;
+ };
+
+ typedef ::std::shared_ptr< SubsettableShapeManager > SubsettableShapeManagerSharedPtr;
+
+}
+
+#endif // INCLUDED_SLIDESHOW_SOURCE_INC_SUBSETTABLESHAPEMANAGER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */