LCOV - code coverage report
Current view: top level - slideshow/source/engine/transitions - randomwipe.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 0 31 0.0 %
Date: 2012-08-25 Functions: 0 2 0.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 0 -

           Branch data     Line data    Source code
       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                 :            : 
      21                 :            : #include <canvas/debug.hxx>
      22                 :            : #include <basegfx/matrix/b2dhommatrix.hxx>
      23                 :            : #include <basegfx/numeric/ftools.hxx>
      24                 :            : #include <basegfx/matrix/b2dhommatrixtools.hxx>
      25                 :            : #include "randomwipe.hxx"
      26                 :            : #include "tools.hxx"
      27                 :            : 
      28                 :            : 
      29                 :            : namespace slideshow {
      30                 :            : namespace internal {
      31                 :            : 
      32                 :          0 : RandomWipe::RandomWipe( sal_Int32 nElements, bool randomBars )
      33                 :          0 :     : m_positions( new ::basegfx::B2DPoint[ nElements ] ),
      34                 :            :       m_nElements( nElements ),
      35                 :          0 :       m_rect( createUnitRect() )
      36                 :            : {
      37                 :          0 :     ::basegfx::B2DHomMatrix aTransform;
      38                 :          0 :     if (randomBars)
      39                 :            :     {
      40                 :          0 :         double edge = (1.0 / nElements);
      41                 :          0 :         for ( sal_Int32 pos = nElements; pos--; )
      42                 :          0 :             m_positions[ pos ].setY( ::basegfx::pruneScaleValue( pos * edge ) );
      43                 :          0 :         aTransform.scale( 1.0, ::basegfx::pruneScaleValue(edge) );
      44                 :            :     }
      45                 :            :     else // dissolve effect
      46                 :            :     {
      47                 :            :         sal_Int32 sqrtElements = static_cast<sal_Int32>(
      48                 :          0 :             sqrt( static_cast<double>(nElements) ) );
      49                 :          0 :         double edge = (1.0 / sqrtElements);
      50                 :          0 :         for ( sal_Int32 pos = nElements; pos--; ) {
      51                 :          0 :             m_positions[ pos ] = ::basegfx::B2DPoint(
      52                 :            :                 ::basegfx::pruneScaleValue( (pos % sqrtElements) * edge ),
      53                 :          0 :                 ::basegfx::pruneScaleValue( (pos / sqrtElements) * edge ) );
      54                 :            :         }
      55                 :          0 :         const double pedge = ::basegfx::pruneScaleValue(edge);
      56                 :          0 :         aTransform.scale( pedge, pedge );
      57                 :            :     }
      58                 :          0 :     m_rect.transform( aTransform );
      59                 :            : 
      60                 :            :     // mix up:
      61                 :          0 :     for ( sal_Int32 pos1 = nElements ; pos1-- ; )
      62                 :            :     {
      63                 :          0 :         const sal_Int32 pos2 = getRandomOrdinal(pos1+1);
      64                 :          0 :         ::std::swap(m_positions[ pos1], m_positions[ pos2 ]);
      65                 :          0 :     }
      66                 :          0 : }
      67                 :            : 
      68                 :          0 : ::basegfx::B2DPolyPolygon RandomWipe::operator () ( double t )
      69                 :            : {
      70                 :          0 :     ::basegfx::B2DPolyPolygon res;
      71                 :          0 :     for ( sal_Int32 pos = static_cast<sal_Int32>(t * m_nElements); pos--; )
      72                 :            :     {
      73                 :          0 :         ::basegfx::B2DPoint const & point = m_positions[ pos ];
      74                 :          0 :         ::basegfx::B2DPolygon poly( m_rect );
      75                 :          0 :         poly.transform(basegfx::tools::createTranslateB2DHomMatrix(point.getX(), point.getY()));
      76                 :          0 :         res.append( poly );
      77                 :          0 :     }
      78                 :          0 :     return res;
      79                 :            : }
      80                 :            : 
      81                 :            : }
      82                 :            : }
      83                 :            : 
      84                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

Generated by: LCOV version 1.10