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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_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
+{
+ namespace 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: */