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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 meFormatAndAlpha;
+ 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, bool bAlphaMaskTransparent = false );
+
+ 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.
+
+ @param eOutDevType
+ This real virtual output device type.
+ */
+ explicit VirtualDevice(const OutputDevice* pCompDev, DeviceFormat eFormat,
+ OutDevType eOutDevType);
+
+public:
+
+ /** Create a virtual device of size 1x1
+
+ @param eFormat
+ Device format of the generated virtual device.
+ */
+ explicit VirtualDevice(DeviceFormat eFormat = DeviceFormat::WITHOUT_ALPHA)
+ : VirtualDevice(nullptr, eFormat, 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.
+ */
+ explicit VirtualDevice(const OutputDevice& rCompDev,
+ DeviceFormat eFormat = DeviceFormat::WITHOUT_ALPHA)
+ : VirtualDevice(&rCompDev, eFormat, 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 bAlphaMaskTransparent = false );
+ 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: */