/* -*- 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 .

 */

#include <sal/config.h>

#include <sal/log.hxx>

#include <com/sun/star/awt/XTopWindow.hpp>

#include <com/sun/star/lang/NoSupportException.hpp>

#include <cppuhelper/supportsservice.hxx>

#include <comphelper/diagnose_ex.hxx>

#include "spritecanvas.hxx"

#include "outdevholder.hxx"

#include "windowoutdevholder.hxx"

using namespace ::com::sun::star;

namespace vclcanvas

{

    SpriteCanvas::SpriteCanvas( const uno::Sequence< uno::Any >&                aArguments,

                                const uno::Reference< uno::XComponentContext >& /*rxContext*/ ) :

        maArguments(aArguments)

    {

    }

    void SpriteCanvas::initialize()

    {

        SolarMutexGuard aGuard;

        // #i64742# Only call initialize when not in probe mode

        if( !maArguments.hasElements() )

            return;

        SAL_INFO("canvas.vcl", "SpriteCanvas created" );

        // add our own property to GraphicDevice

        maPropHelper.addProperties(

            ::canvas::PropertySetHelper::MakeMap

            ("UnsafeScrolling",

             [this]() { return this->maCanvasHelper.isUnsafeScrolling(); },

             [this](css::uno::Any const& aAny) mutable { this->maCanvasHelper.enableUnsafeScrolling(aAny); } )

            ("SpriteBounds",

             [this]() { return this->maCanvasHelper.isSpriteBounds(); },

             [this](css::uno::Any const& aAny) mutable { this->maCanvasHelper.enableSpriteBounds(aAny); } ));

        SAL_INFO("canvas.vcl", "VCLSpriteCanvas::initialize called" );

        ENSURE_ARG_OR_THROW( maArguments.hasElements(),

                             "VCLSpriteCanvas::initialize: wrong number of arguments" );

        /* maArguments:

           0: ptr to creating instance (Window or VirtualDevice)

           1: current bounds of creating instance

           2: bool, denoting always on top state for Window (always false for VirtualDevice)

           3: XWindow for creating Window (or empty for VirtualDevice)

           4: SystemGraphicsData as a streamed Any

         */

        ENSURE_ARG_OR_THROW( maArguments.getLength() >= 4 &&

                             maArguments[0].getValueTypeClass() == uno::TypeClass_HYPER &&

                             maArguments[3].getValueTypeClass() == uno::TypeClass_INTERFACE,

                             "VCLSpriteCanvas::initialize: wrong number of arguments, or wrong types" );

        sal_Int64 nPtr = 0;

        maArguments[0] >>= nPtr;

        OutputDevice* pOutDev = reinterpret_cast<OutputDevice*>(nPtr);

        if( !pOutDev )

            throw lang::NoSupportException(u"Passed OutDev invalid!"_ustr, nullptr);

        uno::Reference< awt::XWindow > xParentWindow;

        maArguments[3] >>= xParentWindow;

        OutDevProviderSharedPtr pOutDevProvider;

        if( xParentWindow.is())

            pOutDevProvider = std::make_shared<WindowOutDevHolder>(xParentWindow);

        else

            pOutDevProvider = std::make_shared<OutDevHolder>(*pOutDev);

        // setup helper

        maDeviceHelper.init( pOutDevProvider );

        setWindow( xParentWindow.is()

            ? uno::Reference<awt::XWindow2>(xParentWindow, uno::UNO_QUERY_THROW)

            : uno::Reference<awt::XWindow2>());

        maCanvasHelper.init( maDeviceHelper.getBackBuffer(),

                             *this,

                             maRedrawManager,

                             false,   // no OutDev state preservation

                             false ); // no alpha on surface

        maArguments.realloc(0);

    }

    SpriteCanvas::~SpriteCanvas()

    {

        SAL_INFO("canvas.vcl", "SpriteCanvas destroyed" );

    }

    void SpriteCanvas::disposeThis()

    {

        SolarMutexGuard aGuard;

        // forward to parent

        SpriteCanvasBaseT::disposeThis();

    }

    sal_Bool SAL_CALL SpriteCanvas::showBuffer( sal_Bool bUpdateAll )

    {

        return updateScreen( bUpdateAll );

    }

    sal_Bool SAL_CALL SpriteCanvas::switchBuffer( sal_Bool bUpdateAll )

    {

        return updateScreen( bUpdateAll );

    }

    sal_Bool SAL_CALL SpriteCanvas::updateScreen( sal_Bool bUpdateAll )

    {

        SolarMutexGuard aGuard;

        // avoid repaints on hidden window (hidden: not mapped to

        // screen). Return failure, since the screen really has _not_

        // been updated (caller should try again later)

        return mbIsVisible && maCanvasHelper.updateScreen(bUpdateAll,

                                                                  mbSurfaceDirty);

    }

    OUString SAL_CALL SpriteCanvas::getServiceName(  )

    {

        return u"com.sun.star.rendering.SpriteCanvas.VCL"_ustr;

    }

    // XServiceInfo

    css::uno::Sequence<OUString> SpriteCanvas::getSupportedServiceNames()

    {

        return { SpriteCanvas::getServiceName() };

    }

    OUString SpriteCanvas::getImplementationName()

    {

        return u"com.sun.star.comp.rendering.SpriteCanvas.VCL"_ustr;

    }

    sal_Bool SpriteCanvas::supportsService(const OUString& sServiceName)

    {

        return cppu::supportsService(this, sServiceName);

    }

    bool SpriteCanvas::repaint( const GraphicObjectSharedPtr&   rGrf,

                                const rendering::ViewState&     viewState,

                                const rendering::RenderState&   renderState,

                                const ::Point&                  rPt,

                                const ::Size&                   rSz,

                                const GraphicAttr&              rAttr ) const

    {

        SolarMutexGuard aGuard;

        return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );

    }

}

extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*

com_sun_star_comp_rendering_SpriteCanvas_VCL_get_implementation(

    css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& args)

{

    rtl::Reference<vclcanvas::SpriteCanvas> p = new vclcanvas::SpriteCanvas(args, context);

    p->initialize();

    return cppu::acquire(p.get());

}

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