vcl/inc/aqua/salgdicommon.hxx

   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 _VCL_AQUA_SALGDICOMMON_H
  21 #define _VCL_AQUA_SALGDICOMMON_H
  22
  23 // abstracting quartz color instead of having to use an CGFloat[] array
  24 class RGBAColor
  25 {
  26 public:
  27     RGBAColor( SalColor );
  28     RGBAColor( float fRed, float fGreen, float fBlue, float fAlpha ); //NOTUSEDYET
  29     const CGFloat* AsArray() const { return m_fRGBA; }
  30     bool IsVisible() const { return m_fRGBA[3] > 0; }
  31     void SetAlpha( float fAlpha ) { m_fRGBA[3] = fAlpha; }
  32 private:
  33     CGFloat m_fRGBA[4]; // red, green, blue, alpha
  34 };
  35
  36 inline RGBAColor::RGBAColor( SalColor nSalColor )
  37 {
  38     m_fRGBA[0] = SALCOLOR_RED(nSalColor) * (1.0/255);
  39     m_fRGBA[1] = SALCOLOR_GREEN(nSalColor) * (1.0/255);
  40     m_fRGBA[2] = SALCOLOR_BLUE(nSalColor) * (1.0/255);
  41     m_fRGBA[3] = 1.0; // opaque
  42 }
  43
  44 inline RGBAColor::RGBAColor( float fRed, float fGreen, float fBlue, float fAlpha )
  45 {
  46     m_fRGBA[0] = fRed;
  47     m_fRGBA[1] = fGreen;
  48     m_fRGBA[2] = fBlue;
  49     m_fRGBA[3] = fAlpha;
  50 }
  51
  52 class XorEmulation
  53 {
  54 public:
  55     XorEmulation();
  56     ~XorEmulation();
  57
  58     void SetTarget( int nWidth, int nHeight, int nBitmapDepth, CGContextRef, CGLayerRef );
  59     bool UpdateTarget();
  60     void Enable() { m_bIsEnabled = true; }
  61     void Disable() { m_bIsEnabled = false; }
  62     bool IsEnabled() const { return m_bIsEnabled; }
  63     CGContextRef GetTargetContext() const { return m_xTargetContext; }
  64     CGContextRef GetMaskContext() const { return (m_bIsEnabled ? m_xMaskContext : NULL); }
  65
  66 private:
  67     CGLayerRef m_xTargetLayer;
  68     CGContextRef m_xTargetContext;
  69     CGContextRef m_xMaskContext;
  70     CGContextRef m_xTempContext;
  71     sal_uLong* m_pMaskBuffer;
  72     sal_uLong* m_pTempBuffer;
  73     int m_nBufferLongs;
  74     bool m_bIsEnabled;
  75 };
  76
  77 #endif /* _VCL_AQUA_SALGDICOMMON_H */