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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef INCLUDED_SLIDESHOW_ANIMATEDSPRITE_HXX
#define INCLUDED_SLIDESHOW_ANIMATEDSPRITE_HXX
#include <cppcanvas/customsprite.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/vector/b2dsize.hxx>
#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/polygon/b2dpolypolygon.hxx>
#include "viewlayer.hxx"
#include <boost/optional.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/noncopyable.hpp>
/* 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 : private boost::noncopyable
{
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 );
/** Resize the sprite.
@param rSpriteSizePixel
The new size in pixel
@return true, if the resize was successful. If false
is returned, the sprite might be invalid.
*/
bool 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 );
/// Retrieve current pixel offset for content output.
::basegfx::B2DSize getPixelOffset() const;
/// 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>everytime</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 );
/** Set the sprite priority.
The sprite priority determines the ordering of the
sprites on screen, i.e. which sprite lies before which.
@param rPrio
The new sprite prio. Must be in the range [0,1]
*/
void setPriority( double rPrio );
private:
ViewLayerSharedPtr mpViewLayer;
::cppcanvas::CustomSpriteSharedPtr mpSprite;
::basegfx::B2DSize maEffectiveSpriteSizePixel;
::basegfx::B2DSize maContentPixelOffset;
double mnSpritePrio;
double mnAlpha;
::boost::optional< ::basegfx::B2DPoint > maPosPixel;
::boost::optional< ::basegfx::B2DPolyPolygon > maClip;
::boost::optional< ::basegfx::B2DHomMatrix > maTransform;
bool mbSpriteVisible;
};
typedef ::boost::shared_ptr< AnimatedSprite > AnimatedSpriteSharedPtr;
}
}
#endif /* INCLUDED_SLIDESHOW_ANIMATEDSPRITE_HXX */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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