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, 158 insertions, 0 deletions

diff --git a/slideshow/source/inc/animatedsprite.hxx b/slideshow/source/inc/animatedsprite.hxx
new file mode 100644
index 000000000..18d4eecb2
--- /dev/null
+++ b/slideshow/source/inc/animatedsprite.hxx
@@ -0,0 +1,158 @@
+/* -*- 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_ANIMATEDSPRITE_HXX
+#define INCLUDED_SLIDESHOW_SOURCE_INC_ANIMATEDSPRITE_HXX
+
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/point/b2dpoint.hxx>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+
+#include "viewlayer.hxx"
+
+#include <optional>
+#include <memory>
+
+
+/* Definition of AnimatedSprite class */
+
+namespace slideshow::internal
+    {
+        /** This class provides the sprite for animated shapes.
+
+            Besides encapsulating the Canvas sprite for animated
+            shapes, this class also handles dynamic sprite resizing
+            and all the gory details of offset calculations and
+            rounding prevention.
+         */
+        class AnimatedSprite
+        {
+        public:
+            /** Create a new AnimatedSprite, for the given metafile
+                shape.
+
+                @param rViewLayer
+                The destination view layer, on which the animation should appear
+
+                @param rSpriteSizePixel
+                The overall size of the sprite in device coordinate
+                space, sufficient to display all transformations,
+                shape changes and clips.
+
+                @param nSpritePrio
+                Priority of the sprite. Must remain static over the
+                lifetime of this object
+             */
+            AnimatedSprite( const ViewLayerSharedPtr&   rViewLayer,
+                            const ::basegfx::B2DSize&   rSpriteSizePixel,
+                            double                      nSpritePrio );
+            AnimatedSprite(const AnimatedSprite&) = delete;
+            AnimatedSprite& operator=(const AnimatedSprite&) = delete;
+
+            /** Resize the sprite.
+
+                @param rSpriteSizePixel
+                The new size in pixel
+             */
+            void resize( const ::basegfx::B2DSize& rSpriteSizePixel );
+
+            /** Set an offset for the content output in pixel
+
+                This method offsets the output on the sprite content
+                canvas by the specified amount of device pixel (for
+                subsequent render operations).
+             */
+            void                setPixelOffset( const ::basegfx::B2DSize& rPixelOffset );
+
+            /// Show the sprite
+            void show();
+
+            /// Hide the sprite
+            void hide();
+
+            /** Query the content canvas for the current sprite.
+
+                Note that this method must be called
+                <em>every time</em> something is rendered to the
+                sprite, because XCustomSprite does not guarantee the
+                validity of the canvas after a render operation.
+
+                Furthermore, the view transformation on the returned
+                canvas is already correctly setup, matching the
+                associated destination canvas.
+             */
+            ::cppcanvas::CanvasSharedPtr getContentCanvas() const;
+
+            /** Move the sprite in device pixel space.
+
+                If the sprite is not yet created, this method has no
+                effect.
+             */
+            void movePixel( const ::basegfx::B2DPoint& rNewPos );
+
+            /** Set the alpha value of the sprite.
+
+                If the sprite is not yet created, this method has no
+                effect.
+             */
+            void setAlpha( double rAlpha );
+
+            /** Set a sprite clip in user coordinate space.
+
+                If the sprite is not yet created, this method has no
+                effect.
+             */
+            void clip( const ::basegfx::B2DPolyPolygon& rClip );
+
+            /** Clears a sprite clip
+
+                If the sprite is not yet created, this method has no
+                effect.
+             */
+            void clip();
+
+            /** Set a sprite transformation.
+
+                If the sprite is not yet created, this method has no
+                effect.
+             */
+            void transform( const ::basegfx::B2DHomMatrix& rTransform );
+
+        private:
+            ViewLayerSharedPtr                                          mpViewLayer;
+
+            ::cppcanvas::CustomSpriteSharedPtr                          mpSprite;
+            ::basegfx::B2DSize                                          maEffectiveSpriteSizePixel;
+            ::basegfx::B2DSize                                          maContentPixelOffset;
+
+            double                                                      mnSpritePrio;
+            double                                                      mnAlpha;
+            ::std::optional< ::basegfx::B2DPoint >                    maPosPixel;
+            ::std::optional< ::basegfx::B2DPolyPolygon >              maClip;
+
+            bool                                                        mbSpriteVisible;
+        };
+
+        typedef ::std::shared_ptr< AnimatedSprite > AnimatedSpriteSharedPtr;
+
+}
+
+#endif // INCLUDED_SLIDESHOW_SOURCE_INC_ANIMATEDSPRITE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */