/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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* 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
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* 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/vector/b2dsize.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( ViewLayerSharedPtr xViewLayer,
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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