vcl/source/outdev/pixel.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 <cassert>
  21
  22 #include <vcl/gdimtf.hxx>
  23 #include <vcl/metaact.hxx>
  24 #include <vcl/outdev.hxx>
  25 #include <vcl/virdev.hxx>
  26
  27 #include <salgdi.hxx>
  28
  29 Color OutputDevice::GetPixel(const Point& rPoint) const
  30 {
  31     Color aColor;
  32
  33     if (mpGraphics || AcquireGraphics())
  34     {
  35         if (mbInitClipRegion)
  36             const_cast<OutputDevice*>(this)->InitClipRegion();
  37
  38         if (!mbOutputClipped)
  39         {
  40             const tools::Long nX = ImplLogicXToDevicePixel(rPoint.X());
  41             const tools::Long nY = ImplLogicYToDevicePixel(rPoint.Y());
  42             aColor = mpGraphics->GetPixel(nX, nY, this);
  43
  44             if (mpAlphaVDev)
  45             {
  46                 Color aAlphaColor = mpAlphaVDev->GetPixel(rPoint);
  47                 aColor.SetTransparency(aAlphaColor.GetBlue());
  48             }
  49         }
  50     }
  51     return aColor;
  52 }
  53
  54 void OutputDevice::DrawPixel( const Point& rPt )
  55 {
  56     assert(!is_double_buffered_window());
  57
  58     if ( mpMetaFile )
  59         mpMetaFile->AddAction( new MetaPointAction( rPt ) );
  60
  61     if ( !IsDeviceOutputNecessary() || !mbLineColor || ImplIsRecordLayout() )
  62         return;
  63
  64     Point aPt = ImplLogicToDevicePixel( rPt );
  65
  66     if ( !mpGraphics && !AcquireGraphics() )
  67         return;
  68
  69     if ( mbInitClipRegion )
  70         InitClipRegion();
  71
  72     if ( mbOutputClipped )
  73         return;
  74
  75     if ( mbInitLineColor )
  76         InitLineColor();
  77
  78     mpGraphics->DrawPixel( aPt.X(), aPt.Y(), this );
  79
  80     if( mpAlphaVDev )
  81         mpAlphaVDev->DrawPixel( rPt );
  82 }
  83
  84 void OutputDevice::DrawPixel( const Point& rPt, const Color& rColor )
  85 {
  86     assert(!is_double_buffered_window());
  87
  88     Color aColor = ImplDrawModeToColor( rColor );
  89
  90     if ( mpMetaFile )
  91         mpMetaFile->AddAction( new MetaPixelAction( rPt, aColor ) );
  92
  93     if ( !IsDeviceOutputNecessary() || ImplIsRecordLayout() )
  94         return;
  95
  96     Point aPt = ImplLogicToDevicePixel( rPt );
  97
  98     if ( !mpGraphics && !AcquireGraphics() )
  99         return;
 100
 101     if ( mbInitClipRegion )
 102         InitClipRegion();
 103
 104     if ( mbOutputClipped )
 105         return;
 106
 107     mpGraphics->DrawPixel( aPt.X(), aPt.Y(), aColor, this );
 108
 109     if (mpAlphaVDev)
 110     {
 111         Color aAlphaColor(rColor.GetTransparency(), rColor.GetTransparency(), rColor.GetTransparency());
 112         mpAlphaVDev->DrawPixel(rPt, aAlphaColor);
 113     }
 114 }
 115
 116 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */