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, 150 insertions, 0 deletions

diff --git a/include/drawinglayer/geometry/viewinformation2d.hxx b/include/drawinglayer/geometry/viewinformation2d.hxx
new file mode 100644
index 000000000..2957b7daf
--- /dev/null
+++ b/include/drawinglayer/geometry/viewinformation2d.hxx
@@ -0,0 +1,150 @@
+/* -*- 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 <drawinglayer/drawinglayerdllapi.h>
+
+#include <sal/config.h>
+#include <o3tl/cow_wrapper.hxx>
+
+// predefines
+
+namespace drawinglayer::geometry
+{
+class ImpViewInformation2D;
+}
+
+namespace basegfx
+{
+class B2DHomMatrix;
+class B2DRange;
+}
+
+namespace com::sun::star::beans
+{
+struct PropertyValue;
+}
+
+namespace com::sun::star::drawing
+{
+class XDrawPage;
+}
+
+namespace com::sun::star::uno
+{
+template <class interface_type> class Reference;
+template <typename> class Sequence;
+}
+
+namespace drawinglayer::geometry
+{
+/** ViewInformation2D class
+
+    This class holds all view-relevant information for a 2d geometry.
+    The most used data is for convenience offered directly using basegfx tooling classes.
+*/
+class DRAWINGLAYERCORE_DLLPUBLIC ViewInformation2D
+{
+public:
+    typedef o3tl::cow_wrapper<ImpViewInformation2D, o3tl::ThreadSafeRefCountingPolicy> ImplType;
+
+private:
+    /// pointer to private implementation class
+    ImplType mpViewInformation2D;
+
+public:
+    /** Constructor: Create a ViewInformation2D
+
+        @param rObjectTransformation
+        The Transformation from Object to World coordinates (normally logic coordinates).
+
+        @param rViewTransformation
+        The Transformation from World to View coordinates (normally logic coordinates
+        to discrete units, e.g. pixels).
+
+        @param rViewport
+        The visible part of the view in World coordinates. If empty (getViewport().isEmpty())
+        everything is visible. The data is in World coordinates.
+
+        @param rxDrawPage
+        The currently displayed page. This information is needed e.g. due to existing PageNumber
+        fields which need to be interpreted.
+
+        @param fViewTime
+        The time the view is defined for. Default is 0.0. This parameter is used e.g. for
+        animated objects
+
+        @param rReducedDisplayQuality
+    */
+    ViewInformation2D(const basegfx::B2DHomMatrix& rObjectTransformation,
+                      const basegfx::B2DHomMatrix& rViewTransformation,
+                      const basegfx::B2DRange& rViewport,
+                      const css::uno::Reference<css::drawing::XDrawPage>& rxDrawPage,
+                      double fViewTime, bool bReducedDisplayQuality = false);
+
+    /// default (empty) constructor
+    ViewInformation2D();
+
+    /// copy constructor
+    ViewInformation2D(const ViewInformation2D&);
+
+    ViewInformation2D(ViewInformation2D&&);
+
+    /// destructor
+    ~ViewInformation2D();
+
+    /// assignment operator
+    ViewInformation2D& operator=(const ViewInformation2D&);
+    ViewInformation2D& operator=(ViewInformation2D&&);
+
+    /// compare operators
+    bool operator==(const ViewInformation2D& rCandidate) const;
+    bool operator!=(const ViewInformation2D& rCandidate) const { return !operator==(rCandidate); }
+
+    /// data access
+    const basegfx::B2DHomMatrix& getObjectTransformation() const;
+    const basegfx::B2DHomMatrix& getViewTransformation() const;
+    /// Empty viewport means everything is visible.
+    const basegfx::B2DRange& getViewport() const;
+    double getViewTime() const;
+    const css::uno::Reference<css::drawing::XDrawPage>& getVisualizedPage() const;
+
+    /// On-demand prepared Object to View transformation and its inverse for convenience
+    const basegfx::B2DHomMatrix& getObjectToViewTransformation() const;
+    const basegfx::B2DHomMatrix& getInverseObjectToViewTransformation() const;
+
+    /// On-demand prepared Viewport in discrete units for convenience
+    /// Empty viewport means everything is visible.
+    const basegfx::B2DRange& getDiscreteViewport() const;
+
+    /** support reduced DisplayQuality, PropertyName is 'ReducedDisplayQuality'. This
+        is used e.g. to allow to lower display quality for OverlayPrimitives and
+        may lead to simpler decompositions in the local create2DDecomposition
+        implementations of the primitives
+     */
+    bool getReducedDisplayQuality() const;
+};
+
+DRAWINGLAYERCORE_DLLPUBLIC ViewInformation2D
+createViewInformation2D(const css::uno::Sequence<css::beans::PropertyValue>& rViewParameters);
+
+} // end of namespace drawinglayer::geometry
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */