1 files changed, 67 insertions, 0 deletions
diff --git a/canvas/inc/base/spritesurface.hxx b/canvas/inc/base/spritesurface.hxx
new file mode 100644
index 000000000..e49c82699
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+++ b/canvas/inc/base/spritesurface.hxx
@@ -0,0 +1,67 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <base/sprite.hxx>
+
+namespace canvas
+{
+    /* Definition of the SpriteSurface interface */
+
+    /** Canvas surface containing sprites
+
+        Every canvas surface that contains sprites must implement this
+        interface, when employing the canvas base framework. The
+        methods provided here are used from the individual sprites to
+        notify the canvas about necessary screen updates.
+     */
+    class SpriteSurface : public css::uno::XInterface
+    {
+    public:
+        typedef ::rtl::Reference< SpriteSurface > Reference;
+
+        /// Sprites should call this from XSprite::show()
+        virtual void showSprite( const Sprite::Reference& rSprite ) = 0;
+
+        /// Sprites should call this from XSprite::hide()
+        virtual void hideSprite( const Sprite::Reference& rSprite ) = 0;
+
+        /// Sprites should call this from XSprite::move()
+        virtual void moveSprite( const Sprite::Reference&       rSprite,
+                                 const ::basegfx::B2DPoint&     rOldPos,
+                                 const ::basegfx::B2DPoint&     rNewPos,
+                                 const ::basegfx::B2DVector&    rSpriteSize ) = 0;
+
+        /** Sprites should call this when some part of the content has
+            changed.
+
+            That includes show/hide, i.e. for show, both showSprite()
+            and updateSprite() must be called.
+        */
+        virtual void updateSprite( const Sprite::Reference&     rSprite,
+                                   const ::basegfx::B2DPoint&   rPos,
+                                   const ::basegfx::B2DRange&   rUpdateArea ) = 0;
+
+    protected:
+        ~SpriteSurface() {}
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */