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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::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: */
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