/* -*- 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/log.hxx>

#include <vcl/pdfextoutdevdata.hxx>

#include <vcl/salnativewidgets.hxx>

#include <vcl/virdev.hxx>

#include <vcl/window.hxx>

#include <salgdi.hxx>

#include <toolbarvalue.hxx>

#include <menubarvalue.hxx>

#include <scrollbarvalue.hxx>

#include <cassert>

ImplControlValue::~ImplControlValue()

{

}

ImplControlValue* ImplControlValue::clone() const

{

    assert( typeid( const ImplControlValue ) == typeid( *this ));

    return new ImplControlValue( *this );

}

ScrollbarValue::~ScrollbarValue()

{

}

ScrollbarValue* ScrollbarValue::clone() const

{

    assert( typeid( const ScrollbarValue ) == typeid( *this ));

    return new ScrollbarValue( *this );

}

SliderValue::~SliderValue()

{

}

SliderValue* SliderValue::clone() const

{

    assert( typeid( const SliderValue ) == typeid( *this ));

    return new SliderValue( *this );

}

int TabPaneValue::m_nOverlap = 0;

TabPaneValue* TabPaneValue::clone() const

{

    assert(typeid(const TabPaneValue) == typeid(*this));

    return new TabPaneValue(*this);

}

TabitemValue::~TabitemValue()

{

}

TabitemValue* TabitemValue::clone() const

{

    assert( typeid( const TabitemValue ) == typeid( *this ));

    return new TabitemValue( *this );

}

SpinbuttonValue::~SpinbuttonValue()

{

}

SpinbuttonValue* SpinbuttonValue::clone() const

{

    assert( typeid( const SpinbuttonValue ) == typeid( *this ));

    return new SpinbuttonValue( *this );

}

ToolbarValue::~ToolbarValue()

{

}

ToolbarValue* ToolbarValue::clone() const

{

    assert( typeid( const ToolbarValue ) == typeid( *this ));

    return new ToolbarValue( *this );

}

MenubarValue::~MenubarValue()

{

}

MenubarValue* MenubarValue::clone() const

{

    assert( typeid( const MenubarValue ) == typeid( *this ));

    return new MenubarValue( *this );

}

MenupopupValue::~MenupopupValue()

{

}

MenupopupValue* MenupopupValue::clone() const

{

    assert( typeid( const MenupopupValue ) == typeid( *this ));

    return new MenupopupValue( *this );

}

PushButtonValue::~PushButtonValue()

{

}

PushButtonValue* PushButtonValue::clone() const

{

    assert( typeid( const PushButtonValue ) == typeid( *this ));

    return new PushButtonValue( *this );

}

// These functions are mainly passthrough functions that allow access to

// the SalFrame behind a Window object for native widget rendering purposes.

bool OutputDevice::IsNativeControlSupported( ControlType nType, ControlPart nPart ) const

{

    if( !CanEnableNativeWidget() )

        return false;

    if ( !mpGraphics && !AcquireGraphics() )

        return false;

    assert(mpGraphics);

    return mpGraphics->IsNativeControlSupported(nType, nPart);

}

bool OutputDevice::HitTestNativeScrollbar(

                              ControlPart nPart,

                              const tools::Rectangle& rControlRegion,

                              const Point& aPos,

                              bool& rIsInside ) const

{

    if( !CanEnableNativeWidget() )

        return false;

    if ( !mpGraphics && !AcquireGraphics() )

        return false;

    assert(mpGraphics);

    Point aWinOffs( GetDeviceOriginX(), mnOutOffY );

    tools::Rectangle screenRegion( rControlRegion );

    screenRegion.Move( aWinOffs.X(), aWinOffs.Y());

    return mpGraphics->HitTestNativeScrollbar( nPart, screenRegion, Point( aPos.X() + GetDeviceOriginX(), aPos.Y() + mnOutOffY ),

        rIsInside, *this );

}

static std::unique_ptr< ImplControlValue > TransformControlValue( const ImplControlValue& rVal, const OutputDevice& rDev )

{

    std::unique_ptr< ImplControlValue > aResult;

    switch( rVal.getType() )

    {

    case ControlType::Slider:

        {

            const SliderValue* pSlVal = static_cast<const SliderValue*>(&rVal);

            SliderValue* pNew = new SliderValue( *pSlVal );

            aResult.reset( pNew );

            pNew->maThumbRect = rDev.LogicToDevicePixel(pSlVal->maThumbRect);

        }

        break;

    case ControlType::Scrollbar:

        {

            const ScrollbarValue* pScVal = static_cast<const ScrollbarValue*>(&rVal);

            ScrollbarValue* pNew = new ScrollbarValue( *pScVal );

            aResult.reset( pNew );

            pNew->maThumbRect = rDev.LogicToDevicePixel(pScVal->maThumbRect);

            pNew->maButton1Rect = rDev.LogicToDevicePixel(pScVal->maButton1Rect);

            pNew->maButton2Rect = rDev.LogicToDevicePixel(pScVal->maButton2Rect);

        }

        break;

    case ControlType::SpinButtons:

        {

            const SpinbuttonValue* pSpVal = static_cast<const SpinbuttonValue*>(&rVal);

            SpinbuttonValue* pNew = new SpinbuttonValue( *pSpVal );

            aResult.reset( pNew );

            pNew->maUpperRect = rDev.LogicToDevicePixel(pSpVal->maUpperRect);

            pNew->maLowerRect = rDev.LogicToDevicePixel(pSpVal->maLowerRect);

        }

        break;

    case ControlType::Toolbar:

        {

            const ToolbarValue* pTVal = static_cast<const ToolbarValue*>(&rVal);

            ToolbarValue* pNew = new ToolbarValue( *pTVal );

            aResult.reset( pNew );

            pNew->maGripRect = rDev.LogicToDevicePixel(pTVal->maGripRect);

        }

        break;

    case ControlType::TabPane:

        {

            const TabPaneValue* pTIVal = static_cast<const TabPaneValue*>(&rVal);

            TabPaneValue* pNew = new TabPaneValue(*pTIVal);

            pNew->m_aTabHeaderRect = rDev.LogicToDevicePixel(pTIVal->m_aTabHeaderRect);

            pNew->m_aSelectedTabRect = rDev.LogicToDevicePixel(pTIVal->m_aSelectedTabRect);

            aResult.reset(pNew);

        }

        break;

    case ControlType::TabItem:

        {

            const TabitemValue* pTIVal = static_cast<const TabitemValue*>(&rVal);

            TabitemValue* pNew = new TabitemValue( *pTIVal );

            pNew->maContentRect = rDev.LogicToDevicePixel(pTIVal->maContentRect);

            aResult.reset( pNew );

        }

        break;

    case ControlType::Menubar:

        {

            const MenubarValue* pMVal = static_cast<const MenubarValue*>(&rVal);

            MenubarValue* pNew = new MenubarValue( *pMVal );

            aResult.reset( pNew );

        }

        break;

    case ControlType::Pushbutton:

        {

            const PushButtonValue* pBVal = static_cast<const PushButtonValue*>(&rVal);

            PushButtonValue* pNew = new PushButtonValue( *pBVal );

            aResult.reset( pNew );

        }

        break;

    case ControlType::Generic:

            aResult = std::make_unique<ImplControlValue>( rVal );

            break;

    case ControlType::MenuPopup:

        {

            const MenupopupValue* pMVal = static_cast<const MenupopupValue*>(&rVal);

            MenupopupValue* pNew = new MenupopupValue( *pMVal );

            pNew->maItemRect = rDev.LogicToDevicePixel(pMVal->maItemRect);

            aResult.reset( pNew );

        }

        break;

    default:

        std::abort();

        break;

    }

    return aResult;

}

bool OutputDevice::DrawNativeControl( ControlType nType,

                            ControlPart nPart,

                            const tools::Rectangle& rControlRegion,

                            ControlState nState,

                            const ImplControlValue& aValue,

                            const OUString& aCaption,

                            const Color& rBackgroundColor )

{

    assert(!is_double_buffered_window());

    if( !CanEnableNativeWidget() )

        return false;

    // make sure the current clip region is initialized correctly

    if ( !mpGraphics && !AcquireGraphics() )

        return false;

    assert(mpGraphics);

    if ( mbInitClipRegion )

        InitClipRegion();

    if ( mbOutputClipped )

        return true;

    if ( mbInitLineColor )

        InitLineColor();

    if ( mbInitFillColor )

        InitFillColor();

    // Convert the coordinates from relative to Window-absolute, so we draw

    // in the correct place in platform code

    std::unique_ptr< ImplControlValue > aScreenCtrlValue( TransformControlValue( aValue, *this ) );

    tools::Rectangle screenRegion(LogicToDevicePixel(rControlRegion));

    bool bRet = mpGraphics->DrawNativeControl(nType, nPart, screenRegion, nState, *aScreenCtrlValue, aCaption, *this, rBackgroundColor);

    return bRet;

}

bool OutputDevice::GetNativeControlRegion(  ControlType nType,

                                ControlPart nPart,

                                const tools::Rectangle& rControlRegion,

                                ControlState nState,

                                const ImplControlValue& aValue,

                                tools::Rectangle &rNativeBoundingRegion,

                                tools::Rectangle &rNativeContentRegion ) const

{

    if( !CanEnableNativeWidget() )

        return false;

    if ( !mpGraphics && !AcquireGraphics() )

        return false;

    assert(mpGraphics);

    // Convert the coordinates from relative to Window-absolute, so we draw

    // in the correct place in platform code

    std::unique_ptr< ImplControlValue > aScreenCtrlValue( TransformControlValue( aValue, *this ) );

    tools::Rectangle screenRegion(LogicToDevicePixel(rControlRegion));

    bool bRet = mpGraphics->GetNativeControlRegion(nType, nPart, screenRegion, nState, *aScreenCtrlValue,

                                rNativeBoundingRegion,

                                rNativeContentRegion, *this );

    if( bRet )

    {

        // transform back native regions

        rNativeBoundingRegion = ImplDevicePixelToLogic( rNativeBoundingRegion );

        rNativeContentRegion = ImplDevicePixelToLogic( rNativeContentRegion );

    }

    return bRet;

}

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