/* -*- 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 <tools/mapunit.hxx>

#include <vcl/toolkit/morebtn.hxx>

#include <vcl/stdtext.hxx>

struct ImplMoreButtonData

{

    OUString                             maMoreText;

    OUString                             maLessText;

};

void MoreButton::ImplInit( vcl::Window* pParent, WinBits nStyle )

{

    mpMBData.reset(new ImplMoreButtonData);

    mbState      = false;

    PushButton::ImplInit( pParent, nStyle );

    mpMBData->maMoreText = GetStandardText( StandardButtonType::More );

    mpMBData->maLessText = GetStandardText( StandardButtonType::Less );

    ShowState();

    SetSymbolAlign(SymbolAlign::RIGHT);

    SetImageAlign(ImageAlign::Right); //Resolves: fdo#31849 ensure button remains vertically centered

    SetSmallSymbol();

    if ( ! ( nStyle & ( WB_RIGHT | WB_LEFT ) ) )

    {

        nStyle |= WB_CENTER;

        SetStyle( nStyle );

    }

}

void MoreButton::ShowState()

{

    if ( mbState )

    {

        SetSymbol( SymbolType::PAGEUP );

        SetText( mpMBData->maLessText );

    }

    else

    {

        SetSymbol( SymbolType::PAGEDOWN );

        SetText( mpMBData->maMoreText );

    }

}

MoreButton::MoreButton( vcl::Window* pParent, WinBits nStyle ) :

    PushButton( WindowType::MOREBUTTON )

{

    ImplInit( pParent, nStyle );

}

Unexecuted instantiation: MoreButton::MoreButton(vcl::Window*, long)

Unexecuted instantiation: MoreButton::MoreButton(vcl::Window*, long)

MoreButton::~MoreButton()

{

    disposeOnce();

}

void MoreButton::dispose()

{

    mpMBData.reset();

    PushButton::dispose();

}

void MoreButton::Click()

{

    vcl::Window*     pParent = GetParent();

    Size        aSize( pParent->GetSizePixel() );

    tools::Long nDeltaPixel = LogicToPixel(Size(0, 0), MapMode(MapUnit::MapPixel)).Height();

    // Change status

    mbState = !mbState;

    ShowState();

    // Update the windows according to the status

    if ( mbState )

    {

        // Adapt dialogbox

        Point aPos( pParent->GetPosPixel() );

        tools::Rectangle aDeskRect( pParent->ImplGetFrameWindow()->GetDesktopRectPixel() );

        aSize.AdjustHeight(nDeltaPixel );

        if ( (aPos.Y()+aSize.Height()) > aDeskRect.Bottom() )

        {

            aPos.setY( aDeskRect.Bottom()-aSize.Height() );

            if ( aPos.Y() < aDeskRect.Top() )

                aPos.setY( aDeskRect.Top() );

            pParent->SetPosSizePixel( aPos, aSize );

        }

        else

            pParent->SetSizePixel( aSize );

    }

    else

    {

        // Adapt Dialogbox

        aSize.AdjustHeight( -nDeltaPixel );

        pParent->SetSizePixel( aSize );

    }

    // Call Click handler here, so that we can initialize the Controls

    PushButton::Click();

}

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