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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_VCL_VIRDEV_HXX
#define INCLUDED_VCL_VIRDEV_HXX
#include <vcl/dllapi.h>
#include <vcl/outdev.hxx>
#include <vcl/salgtype.hxx>
#include <memory>
class SalVirtualDevice;
struct SystemGraphicsData;
typedef struct _cairo_surface cairo_surface_t;
class SAL_WARN_UNUSED VCL_DLLPUBLIC VirtualDevice : public OutputDevice
{
friend class Application;
friend class ::OutputDevice;
friend class Printer;
friend cairo_surface_t* get_underlying_cairo_surface(const VirtualDevice&);
public:
// reference device modes for different compatibility levels
enum class RefDevMode { NONE = 0,
Dpi600 = 1, // 600 dpi
MSO1 = 3,
PDF1 = 4,
Custom = 5
};
private:
std::unique_ptr<SalVirtualDevice> mpVirDev;
VclPtr<VirtualDevice> mpPrev;
VclPtr<VirtualDevice> mpNext;
sal_uInt16 mnBitCount;
bool mbScreenComp;
const DeviceFormat meFormat;
const DeviceFormat meAlphaFormat;
RefDevMode meRefDevMode;
bool mbForceZeroExtleadBug;
SAL_DLLPRIVATE void ImplInitVirDev( const OutputDevice* pOutDev, tools::Long nDX, tools::Long nDY, const SystemGraphicsData *pData = nullptr );
SAL_DLLPRIVATE bool InnerImplSetOutputSizePixel( const Size& rNewSize, bool bErase,
sal_uInt8* pBuffer );
SAL_DLLPRIVATE bool ImplSetOutputSizePixel( const Size& rNewSize, bool bErase,
sal_uInt8* pBuffer );
VirtualDevice (const VirtualDevice &) = delete;
VirtualDevice & operator= (const VirtualDevice &) = delete;
/** Used for alpha VDev, to set areas to opaque
@since \#i32109#
*/
SAL_DLLPRIVATE void ImplFillOpaqueRectangle( const tools::Rectangle& rRect );
protected:
virtual bool AcquireGraphics() const override;
virtual void ReleaseGraphics( bool bRelease = true ) override;
/** Create a virtual device of size 1x1
@param pCompDev
The generated vdev will be compatible to this device.
If it's the nullptr, it uses Application::GetDefaultDevice().
@param eFormat
Device format of the generated virtual device. Use DeviceFormat::DEFAULT here, to
indicate: take default screen depth.
@param eAlphaFormat
Device format of the generated virtual device. Use DeviceFormat::DEFAULT here, to
indicate: take default screen depth.
@param eOutDevType
This real virtual output device type.
*/
explicit VirtualDevice(const OutputDevice* pCompDev, DeviceFormat eFormat,
DeviceFormat eAlphaFormat, OutDevType eOutDevType);
public:
/** Create a virtual device of size 1x1
@param eFormat
Device format of the generated virtual device. Use DeviceFormat::DEFAULT here, to
indicate: take default screen depth.
@param eAlphaFormat
Device format of the generated virtual device. Use DeviceFormat::DEFAULT here, to
indicate: take default screen depth.
*/
explicit VirtualDevice(DeviceFormat eFormat = DeviceFormat::DEFAULT, DeviceFormat eAlphaFormat = DeviceFormat::NONE)
: VirtualDevice(nullptr, eFormat, eAlphaFormat, OUTDEV_VIRDEV) {}
/** Create a virtual device of size 1x1
@param rCompDev
The generated vdev will be compatible to this device.
@param eFormat
Device format of the generated virtual device. Use DeviceFormat::DEFAULT here, to
indicate: take default screen depth.
*/
explicit VirtualDevice(const OutputDevice& rCompDev,
DeviceFormat eFormat = DeviceFormat::DEFAULT)
: VirtualDevice(&rCompDev, eFormat, DeviceFormat::NONE, OUTDEV_VIRDEV) {}
/** Create a virtual device of size 1x1 with alpha channel
@param rCompDev
The generated vdev will be compatible to this device.
@param eFormat
Device format of the generated virtual device. Use DeviceFormat::DEFAULT here, to
indicate: take default screen depth.
@param eAlphaFormat
Device format of the generated virtual device. Use DeviceFormat::DEFAULT here, to
indicate: take default screen depth.
*/
explicit VirtualDevice(const OutputDevice& rCompDev,
DeviceFormat eFormat, DeviceFormat eAlphaFormat)
: VirtualDevice(&rCompDev, eFormat, eAlphaFormat, OUTDEV_VIRDEV) {}
/** Create a virtual device using an existing system dependent device or graphics context
Any rendering will happen directly on the context and not on any intermediate bitmap.
Note: This might not be supported on all platforms !
*/
explicit VirtualDevice(const SystemGraphicsData& rData, const Size &rSize,
DeviceFormat eFormat);
virtual ~VirtualDevice() override;
virtual void dispose() override;
bool CanEnableNativeWidget() const override;
virtual void EnableRTL( bool bEnable = true ) override;
bool SetOutputSizePixel( const Size& rNewSize, bool bErase = true );
bool SetOutputSizePixelScaleOffsetAndLOKBuffer( const Size& rNewSize,
const Fraction& rScale,
const Point& rNewOffset,
sal_uInt8* pBuffer);
bool SetOutputSize( const Size& rNewSize )
{ return SetOutputSizePixel( LogicToPixel( rNewSize ) ); }
void SetReferenceDevice( RefDevMode );
void Compat_ZeroExtleadBug(); // enable workaround for #i60495#
void SetReferenceDevice( sal_Int32 i_nDPIX, sal_Int32 i_nDPIY );
virtual sal_uInt16 GetBitCount() const override;
bool IsVirtual() const override;
bool IsScreenComp() const override { return mbScreenComp; }
private:
SAL_DLLPRIVATE void ImplSetReferenceDevice( RefDevMode, sal_Int32 i_nDPIX, sal_Int32 i_nDPIY );
protected:
virtual bool UsePolyPolygonForComplexGradient() override;
virtual tools::Long GetFontExtLeading() const override;
};
#endif // INCLUDED_VCL_VIRDEV_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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