/* -*- 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/.
 */

#include <basegfx/polygon/b2dpolygon.hxx>
#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#include <drawinglayer/processor2d/baseprocessor2d.hxx>
#include <drawinglayer/processor2d/processorfromoutputdevice.hxx>
#include <sfx2/bindings.hxx>
#include <sfx2/dispatch.hxx>
#include <sfx2/infobar.hxx>
#include <sfx2/objsh.hxx>
#include <sfx2/sfx.hrc>
#include <sfx2/viewsh.hxx>
#include <vcl/svapp.hxx>

using namespace std;

namespace
{
    class SfxCloseButton : public PushButton
    {
        public:
            SfxCloseButton( Window* pParent ) : PushButton( pParent, 0 )
            {
            }

            ~SfxCloseButton( ) { }

            virtual void Paint( const Rectangle& rRect );
    };

    void SfxCloseButton::Paint( const Rectangle& )
    {
        const drawinglayer::geometry::ViewInformation2D aNewViewInfos;
        drawinglayer::processor2d::BaseProcessor2D * pProcessor =
            drawinglayer::processor2d::createBaseProcessor2DFromOutputDevice(
                        *this, aNewViewInfos );

        const Rectangle aRect( Rectangle( Point( 0, 0 ), PixelToLogic( GetSizePixel() ) ) );

        drawinglayer::primitive2d::Primitive2DSequence aSeq( 2 );

        basegfx::BColor aLightColor( 1.0, 1.0, 191.0 / 255.0 );
        basegfx::BColor aDarkColor( 217.0 / 255.0, 217.0 / 255.0, 78.0 / 255.0 );

        const StyleSettings& rSettings = Application::GetSettings().GetStyleSettings();
        if ( rSettings.GetHighContrastMode() )
        {
            aLightColor = rSettings.GetLightColor( ).getBColor( );
            aDarkColor = rSettings.GetDialogTextColor( ).getBColor( );

        }

        // Light background
        basegfx::B2DPolygon aPolygon;
        aPolygon.append( basegfx::B2DPoint( aRect.Left( ), aRect.Top( ) ) );
        aPolygon.append( basegfx::B2DPoint( aRect.Right( ), aRect.Top( ) ) );
        aPolygon.append( basegfx::B2DPoint( aRect.Right( ), aRect.Bottom( ) ) );
        aPolygon.append( basegfx::B2DPoint( aRect.Left( ), aRect.Bottom( ) ) );
        aPolygon.setClosed( true );
        drawinglayer::primitive2d::PolyPolygonColorPrimitive2D* pBack =
            new drawinglayer::primitive2d::PolyPolygonColorPrimitive2D(
                    basegfx::B2DPolyPolygon( aPolygon ), aLightColor );
        aSeq[0] = pBack;

        drawinglayer::attribute::LineAttribute aLineAttribute( aDarkColor, 2.0 );

        // Cross
        basegfx::B2DPolyPolygon aCross;
        basegfx::B2DPolygon aLine1;
        aLine1.append( basegfx::B2DPoint( aRect.Left(), aRect.Top( ) ) );
        aLine1.append( basegfx::B2DPoint( aRect.Right(), aRect.Bottom( ) ) );
        aCross.append( aLine1 );
        basegfx::B2DPolygon aLine2;
        aLine2.append( basegfx::B2DPoint( aRect.Right(), aRect.Top( ) ) );
        aLine2.append( basegfx::B2DPoint( aRect.Left(), aRect.Bottom( ) ) );
        aCross.append( aLine2 );

        drawinglayer::primitive2d::PolyPolygonStrokePrimitive2D * pCross =
                new drawinglayer::primitive2d::PolyPolygonStrokePrimitive2D (
                    aCross, aLineAttribute, drawinglayer::attribute::StrokeAttribute( ) );

        aSeq[1] = pCross;

        pProcessor->process( aSeq );
        delete pProcessor;
    }
}

SfxInfoBarWindow::SfxInfoBarWindow( Window* pParent, const OUString& sId,
       const OUString& sMessage, vector< PushButton* > aButtons ) :
    Window( pParent, 0 ),
    m_sId( sId ),
    m_pMessage( NULL ),
    m_pCloseBtn( NULL ),
    m_aActionBtns( aButtons )
{
    long nWidth = pParent->GetSizePixel().getWidth();
    SetPosSizePixel( Point( 0, 0 ), Size( nWidth, 40 ) );
    m_pMessage = new FixedText( this, 0 );
    m_pMessage->SetText( sMessage );
    m_pMessage->SetBackground( Wallpaper( Color(  255, 255, 191 ) ) );
    m_pMessage->Show( );

    m_pCloseBtn = new SfxCloseButton( this );
    m_pCloseBtn->SetPosSizePixel( Point( nWidth - 25, 15 ), Size( 10, 10 ) );
    m_pCloseBtn->SetClickHdl( LINK( this, SfxInfoBarWindow, CloseHandler ) );
    m_pCloseBtn->Show( );

    // Reparent the buttons and place them on the right of the bar
    long nX = m_pCloseBtn->GetPosPixel( ).getX( ) - 15;
    long nBtnGap = 5;
    for ( vector< PushButton* >::iterator it = m_aActionBtns.begin( );
            it != m_aActionBtns.end( ); ++it )
    {
        PushButton* pBtn = *it;
        pBtn->SetParent( this );
        long nBtnWidth = pBtn->GetSizePixel( ).getWidth();
        nX -= nBtnWidth;
        pBtn->SetPosSizePixel( Point( nX, 5 ), Size( nBtnWidth, 30 ) );
        nX -= nBtnGap;
        pBtn->Show( );
    }

    m_pMessage->SetPosSizePixel( Point( 10, 10 ), Size( nX - 20, 20 ) );
}

SfxInfoBarWindow::~SfxInfoBarWindow( )
{
    delete m_pMessage;
    delete m_pCloseBtn;

    for ( vector< PushButton* >::iterator it = m_aActionBtns.begin( );
            it != m_aActionBtns.end( ); ++it )
    {
        delete *it;
    }
    m_aActionBtns.clear( );
}

void SfxInfoBarWindow::Paint( const Rectangle& rPaintRect )
{
    const drawinglayer::geometry::ViewInformation2D aNewViewInfos;
    drawinglayer::processor2d::BaseProcessor2D * pProcessor =
        drawinglayer::processor2d::createBaseProcessor2DFromOutputDevice(
                    *this, aNewViewInfos );

    const Rectangle aRect( Rectangle( Point( 0, 0 ), PixelToLogic( GetSizePixel() ) ) );

    drawinglayer::primitive2d::Primitive2DSequence aSeq( 2 );

    basegfx::BColor aLightColor( 1.0, 1.0, 191.0 / 255.0 );
    basegfx::BColor aDarkColor( 217.0 / 255.0, 217.0 / 255.0, 78.0 / 255.0 );

    const StyleSettings& rSettings = Application::GetSettings().GetStyleSettings();
    if ( rSettings.GetHighContrastMode() )
    {
        aLightColor = rSettings.GetLightColor( ).getBColor( );
        aDarkColor = rSettings.GetDialogTextColor( ).getBColor( );
    }

    // Update the label background color
    m_pMessage->SetBackground( Wallpaper( Color( aLightColor ) ) );

    // Light background
    basegfx::B2DPolygon aPolygon;
    aPolygon.append( basegfx::B2DPoint( aRect.Left( ), aRect.Top( ) ) );
    aPolygon.append( basegfx::B2DPoint( aRect.Right( ), aRect.Top( ) ) );
    aPolygon.append( basegfx::B2DPoint( aRect.Right( ), aRect.Bottom( ) ) );
    aPolygon.append( basegfx::B2DPoint( aRect.Left( ), aRect.Bottom( ) ) );
    aPolygon.setClosed( true );
    drawinglayer::primitive2d::PolyPolygonColorPrimitive2D* pBack =
        new drawinglayer::primitive2d::PolyPolygonColorPrimitive2D(
                basegfx::B2DPolyPolygon( aPolygon ), aLightColor );
    aSeq[0] = pBack;

    drawinglayer::attribute::LineAttribute aLineAttribute( aDarkColor, 1.0 );

    // Bottom dark line
    basegfx::B2DPolygon aPolygonBottom;
    aPolygonBottom.append( basegfx::B2DPoint( aRect.Left(), aRect.Bottom( ) ) );
    aPolygonBottom.append( basegfx::B2DPoint( aRect.Right(), aRect.Bottom( ) ) );

    drawinglayer::primitive2d::PolygonStrokePrimitive2D * pLineBottom =
            new drawinglayer::primitive2d::PolygonStrokePrimitive2D (
                aPolygonBottom, aLineAttribute );

    aSeq[1] = pLineBottom;

    pProcessor->process( aSeq );
    delete pProcessor;

    Window::Paint( rPaintRect );
}

void SfxInfoBarWindow::Resize( )
{
    long nWidth = GetSizePixel().getWidth();
    m_pCloseBtn->SetPosSizePixel( Point( nWidth - 25, 15 ), Size( 10, 10 ) );

    // Reparent the buttons and place them on the right of the bar
    long nX = m_pCloseBtn->GetPosPixel( ).getX( ) - 15;
    long nBtnGap = 5;
    for ( vector< PushButton* >::iterator it = m_aActionBtns.begin( );
            it != m_aActionBtns.end( ); ++it )
    {
        PushButton* pBtn = *it;
        long nBtnWidth = pBtn->GetSizePixel( ).getWidth();
        nX -= nBtnWidth;
        pBtn->SetPosSizePixel( Point( nX, 5 ), Size( nBtnWidth, 30 ) );
        nX -= nBtnGap;
    }

    m_pMessage->SetPosSizePixel( Point( 10, 10 ), Size( nX - 20, 20 ) );
}

IMPL_LINK_NOARG( SfxInfoBarWindow, CloseHandler )
{
    ((SfxInfoBarContainerWindow*)GetParent())->removeInfoBar( this );
    return 0;
}

SfxInfoBarContainerWindow::SfxInfoBarContainerWindow( SfxInfoBarContainerChild* pChildWin ) :
    Window( pChildWin->GetParent( ), 0 ),
    m_pChildWin( pChildWin ),
    m_pInfoBars( )
{
}

SfxInfoBarContainerWindow::~SfxInfoBarContainerWindow( )
{
    for ( vector< SfxInfoBarWindow* >::iterator it = m_pInfoBars.begin( );
            it != m_pInfoBars.end( ); ++it )
    {
        delete *it;
    }
    m_pInfoBars.clear( );
}

void SfxInfoBarContainerWindow::appendInfoBar( const OUString& sId, const OUString& sMessage, vector< PushButton* > aButtons )
{
    Size aSize = GetSizePixel( );

    SfxInfoBarWindow* pInfoBar = new SfxInfoBarWindow( this, sId, sMessage, aButtons );
    pInfoBar->SetPosPixel( Point( 0, aSize.getHeight( ) ) );
    pInfoBar->Show( );

    long nHeight = pInfoBar->GetSizePixel( ).getHeight( );
    aSize.setHeight( aSize.getHeight() + nHeight );
    SetSizePixel( aSize );
}

SfxInfoBarWindow* SfxInfoBarContainerWindow::getInfoBar( const OUString& sId )
{
    SfxInfoBarWindow* pRet = NULL;
    for ( vector< SfxInfoBarWindow* >::iterator it = m_pInfoBars.begin( );
            it != m_pInfoBars.end( ) && pRet == NULL; ++it )
    {
        SfxInfoBarWindow* pBar = *it;
        if ( pBar->getId( ) == sId )
            pRet = pBar;
    }
    return pRet;
}

void SfxInfoBarContainerWindow::removeInfoBar( SfxInfoBarWindow* pInfoBar )
{
    for ( vector< SfxInfoBarWindow* >::iterator it = m_pInfoBars.begin( );
            it != m_pInfoBars.end( ); ++it )
    {
        if ( pInfoBar == *it )
        {
            m_pInfoBars.erase( it );
            break;
        }
    }
    delete pInfoBar;

    long nY = 0;
    for ( vector< SfxInfoBarWindow* >::iterator it = m_pInfoBars.begin( ); it != m_pInfoBars.end( ); ++it )
    {
        SfxInfoBarWindow* pBar = *it;
        pBar->SetPosPixel( Point( 0, nY ) );
        nY += pBar->GetSizePixel( ).getHeight( );
    }

    Size aSize = GetSizePixel( );
    aSize.setHeight( nY );
    SetSizePixel( aSize );

    m_pChildWin->Update( );
}

void SfxInfoBarContainerWindow::Resize( )
{
    // Only need to change the width of the infobars
    long nWidth = GetSizePixel( ).getWidth( );
    for ( vector< SfxInfoBarWindow * >::iterator it = m_pInfoBars.begin( );
            it != m_pInfoBars.end( ); ++it )
    {
        SfxInfoBarWindow* pInfoBar = *it;
        Size aSize = pInfoBar->GetSizePixel( );
        aSize.setWidth( nWidth );
        pInfoBar->SetSizePixel( aSize );
        pInfoBar->Resize( );
    }
}

SFX_IMPL_POS_CHILDWINDOW_WITHID( SfxInfoBarContainerChild, SID_INFOBARCONTAINER, SFX_OBJECTBAR_OBJECT );

SfxInfoBarContainerChild::SfxInfoBarContainerChild( Window* _pParent, sal_uInt16 nId, SfxBindings* pBindings, SfxChildWinInfo* ) :
    SfxChildWindow( _pParent, nId ),
    m_pBindings( pBindings )
{
    pWindow = new SfxInfoBarContainerWindow( this );
    pWindow->SetPosSizePixel( Point( 0, 0 ), Size( _pParent->GetSizePixel( ).getWidth(), 0 ) );
    pWindow->Show( );

    eChildAlignment = SFX_ALIGN_LOWESTTOP;
}

SfxInfoBarContainerChild::~SfxInfoBarContainerChild( )
{
}

SfxChildWinInfo SfxInfoBarContainerChild::GetInfo( ) const
{
    SfxChildWinInfo aInfo = SfxChildWindow::GetInfo();
    return aInfo;
}

void SfxInfoBarContainerChild::Update( )
{
    // Refresh the frame to take the infobars container height change into account
    const sal_uInt16 nId = GetChildWindowId();
    SfxViewFrame* pVFrame = m_pBindings->GetDispatcher( )->GetFrame( );
    pVFrame->ShowChildWindow( nId );

    // Give the focus to the document view
    pVFrame->GetWindow().GrabFocusToDocument();
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */