Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 80 insertions, 0 deletions

diff --git a/cppcanvas/source/wrapper/implspritecanvas.hxx b/cppcanvas/source/wrapper/implspritecanvas.hxx
new file mode 100644
index 000000000..efad54662
--- /dev/null
+++ b/cppcanvas/source/wrapper/implspritecanvas.hxx
@@ -0,0 +1,80 @@
+/* -*- 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 <com/sun/star/rendering/XSpriteCanvas.hpp>
+#include <basegfx/vector/b2dsize.hxx>
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <cppcanvas/spritecanvas.hxx>
+#include "implcanvas.hxx"
+
+namespace cppcanvas::internal
+{
+        class ImplSpriteCanvas : public virtual SpriteCanvas, protected virtual ImplCanvas
+        {
+        public:
+            ImplSpriteCanvas( const css::uno::Reference<
+                                  css::rendering::XSpriteCanvas >& rCanvas );
+            ImplSpriteCanvas(const ImplSpriteCanvas&);
+
+            virtual ~ImplSpriteCanvas() override;
+
+            virtual void                    setTransformation( const ::basegfx::B2DHomMatrix& rMatrix ) override;
+
+            virtual bool                    updateScreen( bool bUpdateAll ) const override;
+
+            virtual CustomSpriteSharedPtr   createCustomSprite( const ::basegfx::B2DSize& ) const override;
+
+            virtual CanvasSharedPtr         clone() const override;
+
+            virtual css::uno::Reference<
+                css::rendering::XSpriteCanvas >    getUNOSpriteCanvas() const override;
+
+            /** This class passes the view transformation
+                to child sprites
+
+                This helper class is necessary, because the
+                ImplSpriteCanvas object cannot hand out shared ptrs of
+                itself, but has somehow pass an object to child
+                sprites those can query for the canvas' view transform.
+             */
+            class TransformationArbiter
+            {
+            public:
+                TransformationArbiter();
+
+                void                        setTransformation( const ::basegfx::B2DHomMatrix& rViewTransform );
+                const ::basegfx::B2DHomMatrix& getTransformation() const {  return maTransformation; }
+
+            private:
+                ::basegfx::B2DHomMatrix     maTransformation;
+            };
+
+            typedef std::shared_ptr< TransformationArbiter > TransformationArbiterSharedPtr;
+
+        private:
+            ImplSpriteCanvas& operator=( const ImplSpriteCanvas& ) = delete;
+
+            const css::uno::Reference< css::rendering::XSpriteCanvas > mxSpriteCanvas;
+            TransformationArbiterSharedPtr                             mpTransformArbiter;
+        };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */