vcl/inc/quartz/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.
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   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 INCLUDED_VCL_INC_QUARTZ_SALGDICOMMON_HXX
  21 #define INCLUDED_VCL_INC_QUARTZ_SALGDICOMMON_HXX
  22
  23 #include <iostream>
  24
  25 #include <premac.h>
  26 #ifdef IOS
  27 #include <CoreGraphics/CoreGraphics.h>
  28 #else
  29 #include <ApplicationServices/ApplicationServices.h>
  30 #endif
  31 #include <postmac.h>
  32
  33 #include <vcl/salgtype.hxx>
  34
  35 // abstracting quartz color instead of having to use an CGFloat[] array
  36 class RGBAColor
  37 {
  38 public:
  39     RGBAColor( SalColor );
  40     RGBAColor( float fRed, float fGreen, float fBlue, float fAlpha ); //NOTUSEDYET
  41     const CGFloat* AsArray() const { return m_fRGBA; }
  42     bool IsVisible() const { return m_fRGBA[3] > 0; }
  43     void SetAlpha( float fAlpha ) { m_fRGBA[3] = fAlpha; }
  44
  45     CGFloat GetRed() const   { return m_fRGBA[0]; }
  46     CGFloat GetGreen() const { return m_fRGBA[1]; }
  47     CGFloat GetBlue() const  { return m_fRGBA[2]; }
  48     CGFloat GetAlpha() const { return m_fRGBA[3]; }
  49 private:
  50     CGFloat m_fRGBA[4]; // red, green, blue, alpha
  51 };
  52
  53 inline RGBAColor::RGBAColor( SalColor nSalColor )
  54 {
  55     m_fRGBA[0] = SALCOLOR_RED(nSalColor) * (1.0/255);
  56     m_fRGBA[1] = SALCOLOR_GREEN(nSalColor) * (1.0/255);
  57     m_fRGBA[2] = SALCOLOR_BLUE(nSalColor) * (1.0/255);
  58     m_fRGBA[3] = 1.0; // opaque
  59 }
  60
  61 inline RGBAColor::RGBAColor( float fRed, float fGreen, float fBlue, float fAlpha )
  62 {
  63     m_fRGBA[0] = fRed;
  64     m_fRGBA[1] = fGreen;
  65     m_fRGBA[2] = fBlue;
  66     m_fRGBA[3] = fAlpha;
  67 }
  68
  69 inline std::ostream &operator <<(std::ostream& s, const RGBAColor &aColor)
  70 {
  71 #ifndef SAL_LOG_INFO
  72     (void) aColor;
  73 #else
  74     s << "{" << aColor.GetRed() << "," << aColor.GetGreen() << "," << aColor.GetBlue() << "," << aColor.GetAlpha() << "}";
  75 #endif
  76     return s;
  77 }
  78
  79 // XOR emulation suckage.
  80 // See http://www.openoffice.org/marketing/ooocon2008/programme/wednesday_1401.pdf
  81 // and https://bugs.freedesktop.org/show_bug.cgi?id=38844 .
  82
  83 class XorEmulation
  84 {
  85 public:
  86     XorEmulation();
  87     ~XorEmulation();
  88
  89     void SetTarget( int nWidth, int nHeight, int nBitmapDepth, CGContextRef, CGLayerRef );
  90     bool UpdateTarget();
  91     void Enable() { m_bIsEnabled = true; }
  92     void Disable() { m_bIsEnabled = false; }
  93     bool IsEnabled() const { return m_bIsEnabled; }
  94     CGContextRef GetTargetContext() const { return m_xTargetContext; }
  95     CGContextRef GetMaskContext() const { return (m_bIsEnabled ? m_xMaskContext : NULL); }
  96
  97 private:
  98     CGLayerRef m_xTargetLayer;
  99     CGContextRef m_xTargetContext;
 100     CGContextRef m_xMaskContext;
 101     CGContextRef m_xTempContext;
 102     sal_uLong* m_pMaskBuffer;
 103     sal_uLong* m_pTempBuffer;
 104     int m_nBufferLongs;
 105     bool m_bIsEnabled;
 106 };
 107
 108 #endif // INCLUDED_VCL_INC_QUARTZ_SALGDICOMMON_HXX
 109
 110 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */