vcl/headless/svpvd.cxx

   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 IOS
  21
  22 #include "headless/svpbmp.hxx"
  23 #include "headless/svpinst.hxx"
  24 #include "headless/svpvd.hxx"
  25 #include "headless/svpgdi.hxx"
  26
  27 #include <basegfx/vector/b2ivector.hxx>
  28
  29 #include <cairo.h>
  30
  31 using namespace basegfx;
  32
  33 SvpSalVirtualDevice::~SvpSalVirtualDevice()
  34 {
  35     cairo_surface_destroy(m_pSurface);
  36 }
  37
  38 SalGraphics* SvpSalVirtualDevice::AcquireGraphics()
  39 {
  40     SvpSalGraphics* pGraphics = new SvpSalGraphics();
  41     pGraphics->setSurface(m_pSurface, m_aFrameSize);
  42     m_aGraphics.push_back( pGraphics );
  43     return pGraphics;
  44 }
  45
  46 void SvpSalVirtualDevice::ReleaseGraphics( SalGraphics* pGraphics )
  47 {
  48     m_aGraphics.remove( dynamic_cast<SvpSalGraphics*>(pGraphics) );
  49     delete pGraphics;
  50 }
  51
  52 bool SvpSalVirtualDevice::SetSize( long nNewDX, long nNewDY )
  53 {
  54     return SetSizeUsingBuffer(nNewDX, nNewDY, nullptr);
  55 }
  56
  57 bool SvpSalVirtualDevice::SetSizeUsingBuffer( long nNewDX, long nNewDY,
  58         sal_uInt8 *const pBuffer)
  59 {
  60     if (nNewDX == 0)
  61         nNewDX = 1;
  62     if (nNewDY == 0)
  63         nNewDY = 1;
  64
  65     if (!m_pSurface || m_aFrameSize.getX() != nNewDX ||
  66                        m_aFrameSize.getY() != nNewDY )
  67     {
  68         m_aFrameSize = basegfx::B2IVector(nNewDX, nNewDY);
  69
  70         nNewDX *= m_fScale;
  71         nNewDY *= m_fScale;
  72
  73         if (m_pSurface)
  74         {
  75             cairo_surface_destroy(m_pSurface);
  76         }
  77
  78         if (m_eFormat == DeviceFormat::BITMASK)
  79         {
  80             m_pSurface = cairo_image_surface_create(CAIRO_FORMAT_A1,
  81                                 nNewDX, nNewDY);
  82         }
  83         else
  84         {
  85             m_pSurface = pBuffer ?
  86                              cairo_image_surface_create_for_data(pBuffer, CAIRO_FORMAT_ARGB32,
  87                                    nNewDX, nNewDY,
  88                                    cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, nNewDX))
  89                                  :
  90                              cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
  91                                    nNewDX, nNewDY);
  92         }
  93
  94 #if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 14, 0)
  95         cairo_surface_set_device_scale(m_pSurface, m_fScale, m_fScale);
  96 #endif
  97
  98         // update device in existing graphics
  99         for( std::list< SvpSalGraphics* >::iterator it = m_aGraphics.begin();
 100              it != m_aGraphics.end(); ++it )
 101             (*it)->setSurface(m_pSurface, m_aFrameSize);
 102     }
 103     return true;
 104 }
 105
 106 long SvpSalVirtualDevice::GetWidth() const
 107 {
 108     return m_pSurface ? m_aFrameSize.getX() : 0;
 109 }
 110
 111 long SvpSalVirtualDevice::GetHeight() const
 112 {
 113     return m_pSurface ? m_aFrameSize.getY() : 0;
 114 }
 115
 116 #endif
 117
 118 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */