/* -*- 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 .
 */

#pragma once

#include <sal/config.h>

#include <X11/Xlib.h>

#include <salgdi.hxx>
#include <salgeom.hxx>
#include <sallayout.hxx>

#include <headless/CairoCommon.hxx>

#include "saltype.h"
#include "saldisp.hxx"

#include <memory>

/* From <X11/Intrinsic.h> */
typedef unsigned long Pixel;

class SalBitmap;
class SalColormap;
class SalDisplay;
class SalFrame;
class X11SalFrame;
class X11SalVirtualDevice;
class X11SkiaSalVirtualDevice;
namespace vcl::font
{
class PhysicalFontCollection;
class PhysicalFontFace;
}
class SalGraphicsImpl;
class TextRenderImpl;

namespace basegfx {
    class B2DTrapezoid;
}

class X11Common
{
public:
    Drawable m_hDrawable;
    const SalColormap* m_pColormap;

    X11Common();

    const SalColormap& GetColormap() const { return *m_pColormap; }
    const SalDisplay* GetDisplay() const { return GetColormap().GetDisplay(); }
    const SalVisual& GetVisual() const { return GetColormap().GetVisual(); }
    Display* GetXDisplay() const { return GetColormap().GetXDisplay(); }
    Drawable GetDrawable() const { return m_hDrawable; }
};

class X11SalGraphics final : public SalGraphicsAutoDelegateToImpl
{
    friend class X11CairoSalGraphicsImpl;
    friend class X11CairoTextRender;

public:
                                    X11SalGraphics();
    virtual                         ~X11SalGraphics() COVERITY_NOEXCEPT_FALSE override;

    void                            Init(X11SalFrame& rFrame, Drawable aDrawable, SalX11Screen nXScreen);
    void                            Init(X11SalVirtualDevice *pVirtualDevice, SalColormap* pColormap = nullptr,
                                         bool bDeleteColormap = false);
    void                            Init( X11SkiaSalVirtualDevice *pVirtualDevice );

    virtual SalGraphicsImpl*        GetImpl() const override;
    SalGeometryProvider*            GetGeometryProvider() const;
    void                            SetDrawable(Drawable d, cairo_surface_t* surface, SalX11Screen nXScreen);

    const SalX11Screen&             GetScreenNumber() const { return m_nXScreen; }

    void                            Flush();

    // override all pure virtual methods
    virtual void                    GetResolution( sal_Int32& rDPIX, sal_Int32& rDPIY ) override;

    virtual void                    SetTextColor( Color nColor ) override;
    virtual void                    SetFont(LogicalFontInstance*, int nFallbackLevel) override;
    virtual void                    GetFontMetric( FontMetricDataRef&, int nFallbackLevel ) override;
    virtual FontCharMapRef          GetFontCharMap() const override;
    virtual bool                    GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const override;
    virtual void                    GetDevFontList( vcl::font::PhysicalFontCollection* ) override;
    virtual void                    ClearDevFontCache() override;
    virtual bool                    AddTempDevFont( vcl::font::PhysicalFontCollection*, const OUString& rFileURL, const OUString& rFontName ) override;

    virtual std::unique_ptr<GenericSalLayout>
                                    GetTextLayout(int nFallbackLevel) override;
    virtual void                    DrawTextLayout( const GenericSalLayout& ) override;

    virtual SystemGraphicsData      GetGraphicsData() const override;

#if ENABLE_CAIRO_CANVAS
    virtual bool                    SupportsCairo() const override;
    virtual cairo::SurfaceSharedPtr CreateSurface(const cairo::CairoSurfaceSharedPtr& rSurface) const override;
    virtual cairo::SurfaceSharedPtr CreateSurface(const OutputDevice& rRefDevice, int x, int y, int width, int height) const override;
    virtual cairo::SurfaceSharedPtr CreateBitmapSurface(const OutputDevice& rRefDevice, const BitmapSystemData& rData, const Size& rSize) const override;
    virtual css::uno::Any           GetNativeSurfaceHandle(cairo::SurfaceSharedPtr& rSurface, const basegfx::B2ISize& rSize) const override;
#endif // ENABLE_CAIRO_CANVAS

private:
    using SalGraphics::GetPixel;

    void FreeColorMap();

    SalFrame*                       m_pFrame; // the SalFrame which created this Graphics or NULL
    SalVirtualDevice*               m_pVDev;  // the SalVirtualDevice which created this Graphics or NULL


    std::unique_ptr<SalColormap>    m_pDeleteColormap;

    SalX11Screen                    m_nXScreen;

    std::unique_ptr<SalGraphicsImpl> mxImpl;
    std::unique_ptr<TextRenderImpl> mxTextRenderImpl;
    X11Common maX11Common;
    CairoCommon maCairoCommon;

public:
    Drawable GetDrawable() const { return maX11Common.GetDrawable(); }
    const SalDisplay* GetDisplay() const { return maX11Common.GetDisplay(); }
    const SalVisual& GetVisual() const { return maX11Common.GetVisual(); }
    Display* GetXDisplay() const { return maX11Common.GetXDisplay(); }
};

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