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Current view: top level - slideshow/source/inc - animatedsprite.hxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 1 0.0 %
Date: 2014-04-14 Functions: 0 1 0.0 %
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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_SLIDESHOW_ANIMATEDSPRITE_HXX
      21             : #define INCLUDED_SLIDESHOW_ANIMATEDSPRITE_HXX
      22             : 
      23             : #include <cppcanvas/customsprite.hxx>
      24             : 
      25             : #include <basegfx/matrix/b2dhommatrix.hxx>
      26             : #include <basegfx/vector/b2dsize.hxx>
      27             : #include <basegfx/point/b2dpoint.hxx>
      28             : #include <basegfx/polygon/b2dpolypolygon.hxx>
      29             : 
      30             : #include "viewlayer.hxx"
      31             : 
      32             : #include <boost/optional.hpp>
      33             : #include <boost/shared_ptr.hpp>
      34             : #include <boost/noncopyable.hpp>
      35             : 
      36             : 
      37             : /* Definition of AnimatedSprite class */
      38             : 
      39             : namespace slideshow
      40             : {
      41             :     namespace internal
      42             :     {
      43             :         /** This class provides the sprite for animated shapes.
      44             : 
      45             :             Besides encapsulating the Canvas sprite for animated
      46             :             shapes, this class also handles dynamic sprite resizing
      47             :             and all the gory details of offset calculations and
      48             :             rounding prevention.
      49             :          */
      50           0 :         class AnimatedSprite : private boost::noncopyable
      51             :         {
      52             :         public:
      53             :             /** Create a new AnimatedSprite, for the given metafile
      54             :                 shape.
      55             : 
      56             :                 @param rViewLayer
      57             :                 The destination view layer, on which the animation should appear
      58             : 
      59             :                 @param rSpriteSizePixel
      60             :                 The overall size of the sprite in device coordinate
      61             :                 space, sufficient to display all transformations,
      62             :                 shape changes and clips.
      63             : 
      64             :                 @param nSpritePrio
      65             :                 Priority of the sprite. Must remain static over the
      66             :                 lifetime of this object
      67             :              */
      68             :             AnimatedSprite( const ViewLayerSharedPtr&   rViewLayer,
      69             :                             const ::basegfx::B2DSize&   rSpriteSizePixel,
      70             :                             double                      nSpritePrio );
      71             : 
      72             :             /** Resize the sprite.
      73             : 
      74             :                 @param rSpriteSizePixel
      75             :                 The new size in pixel
      76             : 
      77             :                 @return true, if the resize was successful. If false
      78             :                 is returned, the sprite might be invalid.
      79             :              */
      80             :             bool resize( const ::basegfx::B2DSize& rSpriteSizePixel );
      81             : 
      82             :             /** Set an offset for the content output in pixel
      83             : 
      84             :                 This method offsets the output on the sprite content
      85             :                 canvas by the specified amount of device pixel (for
      86             :                 subsequent render operations).
      87             :              */
      88             :             void                setPixelOffset( const ::basegfx::B2DSize& rPixelOffset );
      89             : 
      90             :             /// Show the sprite
      91             :             void show();
      92             : 
      93             :             /// Hide the sprite
      94             :             void hide();
      95             : 
      96             :             /** Query the content canvas for the current sprite.
      97             : 
      98             :                 Note that this method must be called
      99             :                 <em>everytime</em> something is rendered to the
     100             :                 sprite, because XCustomSprite does not guarantee the
     101             :                 validity of the canvas after a render operation.
     102             : 
     103             :                 Furthermore, the view transformation on the returned
     104             :                 canvas is already correctly setup, matching the
     105             :                 associated destination canvas.
     106             :              */
     107             :             ::cppcanvas::CanvasSharedPtr getContentCanvas() const;
     108             : 
     109             :             /** Move the sprite in device pixel space.
     110             : 
     111             :                 If the sprite is not yet created, this method has no
     112             :                 effect.
     113             :              */
     114             :             void movePixel( const ::basegfx::B2DPoint& rNewPos );
     115             : 
     116             :             /** Set the alpha value of the sprite.
     117             : 
     118             :                 If the sprite is not yet created, this method has no
     119             :                 effect.
     120             :              */
     121             :             void setAlpha( double rAlpha );
     122             : 
     123             :             /** Set a sprite clip in user coordinate space.
     124             : 
     125             :                 If the sprite is not yet created, this method has no
     126             :                 effect.
     127             :              */
     128             :             void clip( const ::basegfx::B2DPolyPolygon& rClip );
     129             : 
     130             :             /** Clears a sprite clip
     131             : 
     132             :                 If the sprite is not yet created, this method has no
     133             :                 effect.
     134             :              */
     135             :             void clip();
     136             : 
     137             :             /** Set a sprite transformation.
     138             : 
     139             :                 If the sprite is not yet created, this method has no
     140             :                 effect.
     141             :              */
     142             :             void transform( const ::basegfx::B2DHomMatrix& rTransform );
     143             : 
     144             :         private:
     145             :             ViewLayerSharedPtr                                          mpViewLayer;
     146             : 
     147             :             ::cppcanvas::CustomSpriteSharedPtr                          mpSprite;
     148             :             ::basegfx::B2DSize                                          maEffectiveSpriteSizePixel;
     149             :             ::basegfx::B2DSize                                          maContentPixelOffset;
     150             : 
     151             :             double                                                      mnSpritePrio;
     152             :             double                                                      mnAlpha;
     153             :             ::boost::optional< ::basegfx::B2DPoint >                    maPosPixel;
     154             :             ::boost::optional< ::basegfx::B2DPolyPolygon >              maClip;
     155             :             ::boost::optional< ::basegfx::B2DHomMatrix >                maTransform;
     156             : 
     157             :             bool                                                        mbSpriteVisible;
     158             :         };
     159             : 
     160             :         typedef ::boost::shared_ptr< AnimatedSprite > AnimatedSpriteSharedPtr;
     161             : 
     162             :     }
     163             : }
     164             : 
     165             : #endif /* INCLUDED_SLIDESHOW_ANIMATEDSPRITE_HXX */
     166             : 
     167             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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