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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 INCLUDED_VCL_VIRDEV_HXX
21 : #define INCLUDED_VCL_VIRDEV_HXX
22 :
23 : #include <basebmp/bitmapdevice.hxx>
24 : #include <vcl/dllapi.h>
25 : #include <vcl/outdev.hxx>
26 :
27 : class SalVirtualDevice;
28 : struct SystemGraphicsData;
29 :
30 : class VCL_DLLPUBLIC VirtualDevice : public OutputDevice
31 : {
32 : friend class Application;
33 : friend class OutputDevice;
34 : friend class Printer;
35 :
36 : private:
37 : SalVirtualDevice* mpVirDev;
38 : VirtualDevice* mpPrev;
39 : VirtualDevice* mpNext;
40 : sal_uInt16 mnBitCount;
41 : bool mbScreenComp;
42 : sal_Int8 mnAlphaDepth;
43 : sal_uInt8 meRefDevMode;
44 :
45 : SAL_DLLPRIVATE void ImplInitVirDev( const OutputDevice* pOutDev, long nDX, long nDY, sal_uInt16 nBitCount, const SystemGraphicsData *pData = NULL );
46 : SAL_DLLPRIVATE bool InnerImplSetOutputSizePixel( const Size& rNewSize, bool bErase, const basebmp::RawMemorySharedArray &pBuffer );
47 : SAL_DLLPRIVATE bool ImplSetOutputSizePixel( const Size& rNewSize, bool bErase, const basebmp::RawMemorySharedArray &pBuffer );
48 :
49 : // Copy assignment is forbidden and not implemented.
50 : VirtualDevice (const VirtualDevice &);
51 : VirtualDevice & operator= (const VirtualDevice &);
52 :
53 : /** Used for alpha VDev, to set areas to opaque
54 :
55 : @since \#i32109#
56 : */
57 : SAL_DLLPRIVATE void ImplFillOpaqueRectangle( const Rectangle& rRect );
58 :
59 : // TODO: add extra member for refdev backward compatibility options
60 : #define REFDEV_FORCE_ZERO_EXTLEAD 0x80
61 462720 : SAL_DLLPRIVATE bool ForceZeroExtleadBug() const
62 462720 : { return ((meRefDevMode & REFDEV_FORCE_ZERO_EXTLEAD) != 0); }
63 : public:
64 : bool ImplInitGraphics() const SAL_OVERRIDE;
65 : void ImplReleaseGraphics( bool bRelease = true ) SAL_OVERRIDE;
66 :
67 : public:
68 : /** Create a virtual device of size 1x1
69 :
70 : @param nBitCount
71 : Bit depth of the generated virtual device. Use 0 here, to
72 : indicate: take default screen depth. Only 0, 1 and 8
73 : are allowed here, with 1 denoting binary mask and 8 a graylevel mask.
74 : */
75 : explicit VirtualDevice( sal_uInt16 nBitCount = 0 );
76 :
77 : /** Create a virtual device of size 1x1
78 :
79 : @param rCompDev
80 : The generated vdev will be compatible to this device.
81 :
82 : @param nBitCount
83 : Bit depth of the generated virtual device. Use 0 here, to
84 : indicate: take default screen depth. Only 0 and 1
85 : are allowed here, with 1 denoting binary mask.
86 : */
87 : explicit VirtualDevice( const OutputDevice& rCompDev,
88 : sal_uInt16 nBitCount = 0 );
89 :
90 : /** Create a virtual device of size 1x1 with alpha channel
91 :
92 : @param rCompDev
93 : The generated vdev will be compatible to this device.
94 :
95 : @param nBitCount
96 : Bit depth of the generated virtual device. Use 0 here, to
97 : indicate: take default screen depth. Only 0 and 1
98 : are allowed here, with 1 denoting binary mask.
99 :
100 : @param nAlphaBitCount
101 : Bit depth of the generated virtual device. Use 0 here, to
102 : indicate: take default screen depth. Only 0 and 1
103 : are allowed here, with 1 denoting binary mask.
104 : */
105 : explicit VirtualDevice( const OutputDevice& rCompDev,
106 : sal_uInt16 nBitCount, sal_uInt16 nAlphaBitCount );
107 :
108 : /** Create a virtual device using an existing system dependent device or graphics context
109 : Any rendering will happen directly on the context and not on any intermediate bitmap.
110 : Note: This might not be supported on all platforms !
111 : */
112 : explicit VirtualDevice( const SystemGraphicsData *pData, sal_uInt16 nBitCount );
113 :
114 : virtual ~VirtualDevice();
115 :
116 : virtual void EnableRTL( bool bEnable = true ) SAL_OVERRIDE;
117 :
118 : bool SetOutputSizePixel( const Size& rNewSize, bool bErase = true );
119 : bool SetOutputSizePixelScaleOffsetAndBuffer( const Size& rNewSize, const Fraction& rScale, const Point& rNewOffset, const basebmp::RawMemorySharedArray &pBuffer );
120 9 : bool SetOutputSize( const Size& rNewSize, bool bErase = true )
121 9 : { return SetOutputSizePixel( LogicToPixel( rNewSize ), bErase ); }
122 :
123 : // reference device modes for different compatibility levels
124 : enum RefDevMode { REFDEV_NONE = 0,
125 : REFDEV_MODE06 = 1, // 600 dpi
126 : REFDEV_MODE_MSO1 = 3,
127 : REFDEV_MODE_PDF1 = 4,
128 : REFDEV_CUSTOM = 5
129 : };
130 :
131 : void SetReferenceDevice( RefDevMode );
132 :
133 : void Compat_ZeroExtleadBug(); // enable workaround for #i60495#
134 :
135 : void SetReferenceDevice( sal_Int32 i_nDPIX, sal_Int32 i_nDPIY );
136 :
137 : virtual sal_uInt16 GetBitCount() const SAL_OVERRIDE;
138 : virtual sal_uInt16 GetAlphaBitCount() const SAL_OVERRIDE;
139 :
140 : private:
141 : SAL_DLLPRIVATE void ImplSetReferenceDevice( RefDevMode, sal_Int32 i_nDPIX, sal_Int32 i_nDPIY );
142 :
143 : protected:
144 : virtual bool UsePolyPolygonForComplexGradient() SAL_OVERRIDE;
145 :
146 : };
147 :
148 : #endif // INCLUDED_VCL_VIRDEV_HXX
149 :
150 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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