LCOV - code coverage report
Current view: top level - vcl/source/filter - GraphicNativeTransform.cxx (source / functions) Hit Total Coverage
Test: commit c8344322a7af75b84dd3ca8f78b05543a976dfd5 Lines: 1 87 1.1 %
Date: 2015-06-13 12:38:46 Functions: 2 10 20.0 %
Legend: Lines: hit not hit

          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             : #include <vcl/GraphicNativeTransform.hxx>
      21             : 
      22             : #include <vcl/gfxlink.hxx>
      23             : #include <vcl/graphicfilter.hxx>
      24             : #include <com/sun/star/uno/Sequence.hxx>
      25             : #include <com/sun/star/beans/XPropertySet.hpp>
      26             : 
      27             : #include "jpeg/Exif.hxx"
      28             : #include "jpeg/JpegTransform.hxx"
      29             : 
      30           0 : GraphicNativeTransform::GraphicNativeTransform(Graphic& rGraphic) :
      31           0 :     mrGraphic(rGraphic)
      32           0 : {}
      33             : 
      34           0 : GraphicNativeTransform::~GraphicNativeTransform()
      35           0 : {}
      36             : 
      37           0 : bool GraphicNativeTransform::canBeRotated()
      38             : {
      39           0 :     GfxLink aLink = mrGraphic.GetLink();
      40             : 
      41             :     // Don't allow rotation on animations for now
      42           0 :     if (mrGraphic.IsAnimated())
      43             :     {
      44           0 :         return false;
      45             :     }
      46             : 
      47           0 :     if (   aLink.GetType() == GFX_LINK_TYPE_NATIVE_JPG
      48           0 :         || aLink.GetType() == GFX_LINK_TYPE_NATIVE_PNG
      49           0 :         || aLink.GetType() == GFX_LINK_TYPE_NATIVE_GIF
      50           0 :         || aLink.GetType() == GFX_LINK_TYPE_NONE)
      51             :     {
      52           0 :         return true;
      53             :     }
      54             : 
      55           0 :     return false;
      56             : }
      57             : 
      58           0 : bool GraphicNativeTransform::rotate(sal_uInt16 aInputRotation)
      59             : {
      60             :     // Rotation can be between 0 and 3600
      61           0 :     sal_uInt16 aRotation = aInputRotation % 3600;
      62             : 
      63           0 :     if (aRotation == 0)
      64             :     {
      65           0 :         return true; // No rotation is needed
      66             :     }
      67           0 :     else if (aRotation != 900 && aRotation != 1800 && aRotation != 2700)
      68             :     {
      69           0 :         return false;
      70             :     }
      71             : 
      72           0 :     GfxLink aLink = mrGraphic.GetLink();
      73           0 :     if ( aLink.GetType() == GFX_LINK_TYPE_NATIVE_JPG )
      74             :     {
      75           0 :         return rotateJPEG(aRotation);
      76             :     }
      77           0 :     else if ( aLink.GetType() == GFX_LINK_TYPE_NATIVE_PNG )
      78             :     {
      79           0 :         return rotateGeneric(aRotation, OUString("png"));
      80             :     }
      81           0 :     else if ( aLink.GetType() == GFX_LINK_TYPE_NATIVE_GIF )
      82             :     {
      83           0 :         return rotateGeneric(aRotation, OUString("gif"));
      84             :     }
      85           0 :     else if ( aLink.GetType() == GFX_LINK_TYPE_NONE )
      86             :     {
      87           0 :         return rotateBitmapOnly(aRotation);
      88             :     }
      89           0 :     return false;
      90             : }
      91             : 
      92           0 : bool GraphicNativeTransform::rotateBitmapOnly(sal_uInt16 aRotation)
      93             : {
      94           0 :     if (mrGraphic.IsAnimated())
      95             :     {
      96           0 :         return false;
      97             :     }
      98             : 
      99           0 :     BitmapEx aBitmap = mrGraphic.GetBitmapEx();
     100           0 :     aBitmap.Rotate(aRotation, COL_BLACK);
     101           0 :     mrGraphic = aBitmap;
     102             : 
     103           0 :     return true;
     104             : }
     105             : 
     106           0 : bool GraphicNativeTransform::rotateGeneric(sal_uInt16 aRotation, const OUString& aType)
     107             : {
     108             :     // Can't rotate animations yet
     109           0 :     if (mrGraphic.IsAnimated())
     110             :     {
     111           0 :         return false;
     112             :     }
     113             : 
     114           0 :     SvMemoryStream aStream;
     115             : 
     116           0 :     GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
     117             : 
     118           0 :     css::uno::Sequence< css::beans::PropertyValue > aFilterData( 3 );
     119           0 :     aFilterData[ 0 ].Name = "Interlaced";
     120           0 :     aFilterData[ 0 ].Value <<= (sal_Int32) 0;
     121           0 :     aFilterData[ 1 ].Name = "Compression";
     122           0 :     aFilterData[ 1 ].Value <<= (sal_Int32) 9;
     123           0 :     aFilterData[ 2 ].Name = "Quality";
     124           0 :     aFilterData[ 2 ].Value <<= (sal_Int32) 90;
     125             : 
     126           0 :     sal_uInt16 nFilterFormat = rFilter.GetExportFormatNumberForShortName( aType );
     127             : 
     128           0 :     BitmapEx aBitmap = mrGraphic.GetBitmapEx();
     129           0 :     aBitmap.Rotate(aRotation, COL_BLACK);
     130           0 :     rFilter.ExportGraphic( aBitmap, OUString( "none" ), aStream, nFilterFormat, &aFilterData );
     131             : 
     132           0 :     aStream.Seek( STREAM_SEEK_TO_BEGIN );
     133             : 
     134           0 :     Graphic aGraphic;
     135           0 :     rFilter.ImportGraphic( aGraphic, OUString("import"), aStream );
     136             : 
     137           0 :     mrGraphic = aGraphic;
     138           0 :     return true;
     139             : }
     140             : 
     141           0 : bool GraphicNativeTransform::rotateJPEG(sal_uInt16 aRotation)
     142             : {
     143           0 :     BitmapEx aBitmap = mrGraphic.GetBitmapEx();
     144             : 
     145           0 :     if (aBitmap.GetSizePixel().Width()  % 16 != 0 ||
     146           0 :         aBitmap.GetSizePixel().Height() % 16 != 0 )
     147             :     {
     148           0 :         rotateGeneric(aRotation, OUString("png"));
     149             :     }
     150             :     else
     151             :     {
     152           0 :         GfxLink aLink = mrGraphic.GetLink();
     153             : 
     154           0 :         SvMemoryStream aSourceStream;
     155           0 :         aSourceStream.Write(aLink.GetData(), aLink.GetDataSize());
     156           0 :         aSourceStream.Seek( STREAM_SEEK_TO_BEGIN );
     157             : 
     158           0 :         Orientation aOrientation = TOP_LEFT;
     159             : 
     160           0 :         Exif exif;
     161           0 :         if ( exif.read(aSourceStream) )
     162             :         {
     163           0 :             aOrientation = exif.getOrientation();
     164             :         }
     165             : 
     166           0 :         SvMemoryStream aTargetStream;
     167           0 :         JpegTransform tranform(aSourceStream, aTargetStream);
     168           0 :         tranform.setRotate(aRotation);
     169           0 :         tranform.perform();
     170             : 
     171           0 :         aTargetStream.Seek( STREAM_SEEK_TO_BEGIN );
     172             : 
     173             :         // Reset orientation in exif if needed
     174           0 :         if ( exif.hasExif() && aOrientation != TOP_LEFT)
     175             :         {
     176           0 :             exif.setOrientation(TOP_LEFT);
     177           0 :             exif.write(aTargetStream);
     178             :         }
     179             : 
     180           0 :         aTargetStream.Seek( STREAM_SEEK_TO_BEGIN );
     181             : 
     182           0 :         Graphic aGraphic;
     183           0 :         GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
     184           0 :         rFilter.ImportGraphic( aGraphic, OUString("import"), aTargetStream );
     185           0 :         mrGraphic = aGraphic;
     186             :     }
     187             : 
     188           0 :     return true;
     189         801 : }
     190             : 
     191             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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