starmath/source/tmpdevice.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 #include <smmod.hxx>
  21 #include "tmpdevice.hxx"
  22
  23 #include <vcl/window.hxx>
  24
  25 // SmTmpDevice
  26 // Allows for font and color changes. The original settings will be restored
  27 // in the destructor.
  28 // It's main purpose is to allow for the "const" in the 'OutputDevice'
  29 // argument in the 'Arrange' functions and restore changes made in the 'Draw'
  30 // functions.
  31 // Usually a MapMode of 1/100th mm will be used.
  32
  33 SmTmpDevice::SmTmpDevice(OutputDevice &rTheDev, bool bUseMap100th_mm) :
  34     rOutDev(rTheDev)
  35 {
  36     rOutDev.Push( PushFlags::FONT | PushFlags::MAPMODE |
  37                   PushFlags::LINECOLOR | PushFlags::FILLCOLOR | PushFlags::TEXTCOLOR );
  38     if (bUseMap100th_mm  &&  MapUnit::Map100thMM != rOutDev.GetMapMode().GetMapUnit())
  39     {
  40         SAL_WARN("starmath", "incorrect MapMode?");
  41         rOutDev.SetMapMode(MapMode(MapUnit::Map100thMM)); // format for 100% always
  42     }
  43 }
  44
  45
  46 Color SmTmpDevice::Impl_GetColor( const Color& rColor )
  47 {
  48     Color nNewCol = rColor;
  49     if (nNewCol == COL_AUTO)
  50     {
  51         if (OUTDEV_PRINTER == rOutDev.GetOutDevType())
  52             nNewCol = COL_BLACK;
  53         else
  54         {
  55             Color aBgCol( rOutDev.GetBackground().GetColor() );
  56             if (OUTDEV_WINDOW == rOutDev.GetOutDevType())
  57                 aBgCol = static_cast<vcl::Window &>(rOutDev).GetDisplayBackground().GetColor();
  58
  59             nNewCol = SM_MOD()->GetColorConfig().GetColorValue(svtools::FONTCOLOR).nColor;
  60
  61             Color aTmpColor( nNewCol );
  62             if (aBgCol.IsDark() && aTmpColor.IsDark())
  63                 nNewCol = COL_WHITE;
  64             else if (aBgCol.IsBright() && aTmpColor.IsBright())
  65                 nNewCol = COL_BLACK;
  66         }
  67     }
  68     return nNewCol;
  69 }
  70
  71
  72 void SmTmpDevice::SetFont(const vcl::Font &rNewFont)
  73 {
  74     rOutDev.SetFont( rNewFont );
  75     rOutDev.SetTextColor( Impl_GetColor( rNewFont.GetColor() ) );
  76 }
  77
  78 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */