/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: galctrl.cxx,v $
 * $Revision: 1.27 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svx.hxx"

#include <vcl/svapp.hxx>
#include <sfx2/viewfrm.hxx>
#include <sfx2/dispatch.hxx>
#include <avmedia/mediaplayer.hxx>
#include "helpid.hrc"
#include "galbrws2.hxx"
#include "galtheme.hxx"
#include "galmisc.hxx"
#include "galctrl.hxx"
#include "AccessibleStringWrap.hxx"
#include <svx/svxfont.hxx>

// -----------
// - Defines -
// -----------

#define GALLERY_BRWBOX_TITLE    1
#define GALLERY_BRWBOX_PATH     2

// ------------------
// - GalleryPreview -
// ------------------

GalleryPreview::GalleryPreview( GalleryBrowser2* pParent, GalleryTheme* pTheme ) :
    Window( pParent, WB_TABSTOP | WB_BORDER ),
    DropTargetHelper( this ),
    DragSourceHelper( this ),
    mpTheme( pTheme )
{
    SetHelpId( HID_GALLERY_WINDOW );
    InitSettings();
}

// ------------------------------------------------------------------------

GalleryPreview::GalleryPreview( Window* pParent, const ResId & rResId  ) :
    Window( pParent, rResId ),
    DropTargetHelper( this ),
    DragSourceHelper( this ),
    mpTheme( NULL )
{
    SetHelpId( HID_GALLERY_PREVIEW );
    InitSettings();
}

// ------------------------------------------------------------------------

GalleryPreview::~GalleryPreview()
{
}

// ------------------------------------------------------------------------

void GalleryPreview::InitSettings()
{
    SetBackground( Wallpaper( GALLERY_BG_COLOR ) );
    SetControlBackground( GALLERY_BG_COLOR );
    SetControlForeground( GALLERY_FG_COLOR );
}

// -----------------------------------------------------------------------

void GalleryPreview::DataChanged( const DataChangedEvent& rDCEvt )
{
    if ( ( rDCEvt.GetType() == DATACHANGED_SETTINGS ) && ( rDCEvt.GetFlags() & SETTINGS_STYLE ) )
        InitSettings();
    else
        Window::DataChanged( rDCEvt );
}

// ------------------------------------------------------------------------

BOOL GalleryPreview::ImplGetGraphicCenterRect( const Graphic& rGraphic, Rectangle& rResultRect ) const
{
    const Size	aWinSize( GetOutputSizePixel() );
    Size		aNewSize( LogicToPixel( rGraphic.GetPrefSize(), rGraphic.GetPrefMapMode() ) );
    BOOL		bRet = FALSE;

    if( aNewSize.Width() && aNewSize.Height() )
    {
        // scale to fit window
        const double fGrfWH = (double) aNewSize.Width() / aNewSize.Height();
        const double fWinWH = (double) aWinSize.Width() / aWinSize.Height();

        if ( fGrfWH < fWinWH )
        {
            aNewSize.Width() = (long) ( aWinSize.Height() * fGrfWH );
            aNewSize.Height()= aWinSize.Height();
        }
        else
        {
            aNewSize.Width() = aWinSize.Width();
            aNewSize.Height()= (long) ( aWinSize.Width() / fGrfWH);
        }

        const Point aNewPos( ( aWinSize.Width()  - aNewSize.Width() ) >> 1,
                             ( aWinSize.Height() - aNewSize.Height() ) >> 1 );

        rResultRect = Rectangle( aNewPos, aNewSize );
        bRet = TRUE;
    }

    return bRet;
}

// ------------------------------------------------------------------------

void GalleryPreview::Paint( const Rectangle& rRect )
{
    Window::Paint( rRect );

    if( ImplGetGraphicCenterRect( aGraphicObj.GetGraphic(), aPreviewRect ) )
    {
        const Point aPos( aPreviewRect.TopLeft() );
        const Size	aSize( aPreviewRect.GetSize() );

        if( aGraphicObj.IsAnimated() )
            aGraphicObj.StartAnimation( this, aPos, aSize );
        else
            aGraphicObj.Draw( this, aPos, aSize );
    }
}

// ------------------------------------------------------------------------

void GalleryPreview::MouseButtonDown( const MouseEvent& rMEvt )
{
    if( mpTheme && ( rMEvt.GetClicks() == 2 ) )
        ( (GalleryBrowser2*) GetParent() )->TogglePreview( this );
}

// ------------------------------------------------------------------------

void GalleryPreview::Command(const CommandEvent& rCEvt )
{
    Window::Command( rCEvt );

    if( mpTheme && ( rCEvt.GetCommand() == COMMAND_CONTEXTMENU ) )
        ( (GalleryBrowser2*) GetParent() )->ShowContextMenu( this, 
            ( rCEvt.IsMouseEvent() ? &rCEvt.GetMousePosPixel() : NULL ) );
}

// ------------------------------------------------------------------------

void GalleryPreview::KeyInput( const KeyEvent& rKEvt )
{
    if( mpTheme )
    {
        GalleryBrowser2* pBrowser = static_cast< GalleryBrowser2* >( GetParent() );

        switch( rKEvt.GetKeyCode().GetCode() )
        {
            case( KEY_BACKSPACE ):
                pBrowser->TogglePreview( this );
            break;
                
            case( KEY_HOME ):
                pBrowser->Travel( GALLERYBROWSERTRAVEL_FIRST );
            break;

            case( KEY_END ):
                pBrowser->Travel( GALLERYBROWSERTRAVEL_LAST );
            break;

            case( KEY_LEFT ):
            case( KEY_UP ):
                pBrowser->Travel( GALLERYBROWSERTRAVEL_PREVIOUS );
            break;

            case( KEY_RIGHT ):
            case( KEY_DOWN ):
                pBrowser->Travel( GALLERYBROWSERTRAVEL_NEXT );
            break;

            default:
            {
                if( !pBrowser->KeyInput( rKEvt, this ) )
                    Window::KeyInput( rKEvt );
            }
            break;
        }
    }
    else
        Window::KeyInput( rKEvt );
}

// ------------------------------------------------------------------------

sal_Int8 GalleryPreview::AcceptDrop( const AcceptDropEvent& rEvt )
{
    sal_Int8 nRet;

    if( mpTheme )
        nRet = ( (GalleryBrowser2*) GetParent() )->AcceptDrop( *this, rEvt );
    else
        nRet = DND_ACTION_NONE;

    return nRet;
}

// ------------------------------------------------------------------------

sal_Int8 GalleryPreview::ExecuteDrop( const ExecuteDropEvent& rEvt )
{
    sal_Int8 nRet;

    if( mpTheme )
        nRet = ( (GalleryBrowser2*) GetParent() )->ExecuteDrop( *this, rEvt );
    else
        nRet = DND_ACTION_NONE;

    return nRet;
}

// ------------------------------------------------------------------------

void GalleryPreview::StartDrag( sal_Int8, const Point& )
{
    if( mpTheme )
        ( (GalleryBrowser2*) GetParent() )->StartDrag( this );
}

// ------------------------------------------------------------------------

void GalleryPreview::PreviewMedia( const INetURLObject& rURL )
{
    if( rURL.GetProtocol() != INET_PROT_NOT_VALID )
    {
        ::avmedia::MediaFloater* pFloater = AVMEDIA_MEDIAWINDOW();
        
        if( !pFloater )
        {
            SfxViewFrame::Current()->GetBindings().GetDispatcher()->Execute( SID_AVMEDIA_PLAYER, SFX_CALLMODE_SYNCHRON );
            pFloater = AVMEDIA_MEDIAWINDOW();
        }
        
        if( pFloater )
            pFloater->setURL( rURL.GetMainURL( INetURLObject::DECODE_UNAMBIGUOUS ), true );
    }
}

// ------------------------------------------------------------------------

// -------------------
// - GalleryIconView -
// -------------------

GalleryIconView::GalleryIconView( GalleryBrowser2* pParent, GalleryTheme* pTheme ) :
        ValueSet( pParent, WB_TABSTOP | WB_3DLOOK | WB_BORDER | WB_ITEMBORDER | WB_DOUBLEBORDER | WB_VSCROLL | WB_FLATVALUESET ),
        DropTargetHelper( this ),
        DragSourceHelper( this ),
        mpTheme	( pTheme )
{
    EnableFullItemMode( FALSE );

    SetHelpId( HID_GALLERY_WINDOW );
    InitSettings();
    SetExtraSpacing( 2 );
    SetItemWidth( S_THUMB + 6 );
    SetItemHeight( S_THUMB + 6 );
}

// ------------------------------------------------------------------------

GalleryIconView::~GalleryIconView()
{
}

// ------------------------------------------------------------------------

void GalleryIconView::InitSettings()
{
    SetBackground( Wallpaper( GALLERY_BG_COLOR ) );
    SetControlBackground( GALLERY_BG_COLOR );
    SetControlForeground( GALLERY_FG_COLOR );
    SetColor( GALLERY_BG_COLOR );
}

// -----------------------------------------------------------------------

void GalleryIconView::DataChanged( const DataChangedEvent& rDCEvt )
{
    if ( ( rDCEvt.GetType() == DATACHANGED_SETTINGS ) && ( rDCEvt.GetFlags() & SETTINGS_STYLE ) )
        InitSettings();
    else
        ValueSet::DataChanged( rDCEvt );
}

// ------------------------------------------------------------------------

void GalleryIconView::UserDraw( const UserDrawEvent& rUDEvt )
{
    const USHORT nId = rUDEvt.GetItemId();

    if( nId && mpTheme )
    {
        SgaObject* pObj = mpTheme->AcquireObject( nId - 1 );

        if( pObj )
        {
            const Rectangle&	rRect = rUDEvt.GetRect();
            OutputDevice*		pDev = rUDEvt.GetDevice();
            Graphic 			aGraphic;

            if( pObj->IsThumbBitmap() )
            {
                Bitmap aBmp( pObj->GetThumbBmp() );

                if( pObj->GetObjKind() == SGA_OBJ_SOUND )
                    aBmp.Replace( COL_LIGHTMAGENTA, COL_WHITE );

                if( ( pDev->GetBitCount() <= 8 ) && ( aBmp.GetBitCount() >= 8 ) )
                    aBmp.Dither( BMP_DITHER_FLOYD );

                aGraphic = aBmp;
            }
            else
                aGraphic = pObj->GetThumbMtf();

            Size aSize( aGraphic.GetSizePixel( pDev ) );

            if ( aSize.Width() && aSize.Height() )
            {
                if( ( aSize.Width() > rRect.GetWidth() ) || ( aSize.Height() > rRect.GetHeight() ) )
                {
                    Point			aNewPos;
                    const double	fBmpWH	= (double) aSize.Width() / aSize.Height();
                    const double	fThmpWH = (double) rRect.GetWidth() / rRect.GetHeight();

                    // Bitmap an Thumbgroesse anpassen
                    if ( fBmpWH < fThmpWH )
                    {
                        aSize.Width() = (long) ( rRect.GetHeight() * fBmpWH );
                        aSize.Height()= rRect.GetHeight();
                    }
                    else
                    {
                        aSize.Width() = rRect.GetWidth();
                        aSize.Height()= (long) ( rRect.GetWidth() / fBmpWH );
                    }
                }

                const Point aPos( ( ( rRect.GetWidth() - aSize.Width() ) >> 1 ) + rRect.Left(),
                                  ( ( rRect.GetHeight() - aSize.Height() ) >> 1 ) + rRect.Top() );

                aGraphic.Draw( pDev, aPos, aSize );
            }

            SetItemText( nId, GalleryBrowser2::GetItemText( *mpTheme, *pObj, GALLERY_ITEM_THEMENAME | GALLERY_ITEM_TITLE | GALLERY_ITEM_PATH ) );
            mpTheme->ReleaseObject( pObj );
        }
    }
}

// ------------------------------------------------------------------------

void GalleryIconView::MouseButtonDown( const MouseEvent& rMEvt )
{
    ValueSet::MouseButtonDown( rMEvt );

    if( rMEvt.GetClicks() == 2 )
        ( (GalleryBrowser2*) GetParent() )->TogglePreview( this, &rMEvt.GetPosPixel() );
}

// ------------------------------------------------------------------------

void GalleryIconView::Command( const CommandEvent& rCEvt )
{
    ValueSet::Command( rCEvt );

    if( rCEvt.GetCommand() == COMMAND_CONTEXTMENU )
    {
        ( (GalleryBrowser2*) GetParent() )->ShowContextMenu( this, 
            ( rCEvt.IsMouseEvent() ? &rCEvt.GetMousePosPixel() : NULL ) );
    }
}

// ------------------------------------------------------------------------

void GalleryIconView::KeyInput( const KeyEvent& rKEvt )
{
    if( !mpTheme || !static_cast< GalleryBrowser2* >( GetParent() )->KeyInput( rKEvt, this ) )
        ValueSet::KeyInput( rKEvt );
}

// ------------------------------------------------------------------------

sal_Int8 GalleryIconView::AcceptDrop( const AcceptDropEvent& rEvt )
{
    return( static_cast< GalleryBrowser2* >( GetParent() )->AcceptDrop( *this, rEvt ) );
}

// ------------------------------------------------------------------------

sal_Int8 GalleryIconView::ExecuteDrop( const ExecuteDropEvent& rEvt )
{
    return(	static_cast< GalleryBrowser2* >( GetParent() )->ExecuteDrop( *this, rEvt ) );
}

// ------------------------------------------------------------------------

void GalleryIconView::StartDrag( sal_Int8, const Point& )
{
    const CommandEvent	aEvt( GetPointerPosPixel(), COMMAND_STARTDRAG, TRUE );
    Region				aRegion;

    // call this to initiate dragging for ValueSet
    ValueSet::StartDrag( aEvt, aRegion );
    static_cast< GalleryBrowser2* >( GetParent() )->StartDrag( this );
}

// -------------------
// - GalleryListView -
// -------------------

GalleryListView::GalleryListView( GalleryBrowser2* pParent, GalleryTheme* pTheme ) :
    BrowseBox( pParent, WB_TABSTOP | WB_3DLOOK | WB_BORDER ),
    mpTheme( pTheme ),
    mnCurRow( 0 ),
    mbInit( FALSE )
{
    SetHelpId( HID_GALLERY_WINDOW );

    InitSettings();

    SetMode( BROWSER_AUTO_VSCROLL | BROWSER_AUTOSIZE_LASTCOL );
    SetDataRowHeight( 28 );
    InsertDataColumn( GALLERY_BRWBOX_TITLE, String( GAL_RESID( RID_SVXSTR_GALLERY_TITLE ) ), 256  );
    InsertDataColumn( GALLERY_BRWBOX_PATH, String( GAL_RESID( RID_SVXSTR_GALLERY_PATH ) ), 256 );
}

// ------------------------------------------------------------------------

GalleryListView::~GalleryListView()
{
}

// ------------------------------------------------------------------------

void GalleryListView::InitSettings()
{
    SetBackground( Wallpaper( GALLERY_BG_COLOR ) );
    SetControlBackground( GALLERY_BG_COLOR );
    SetControlForeground( GALLERY_FG_COLOR );
}

// -----------------------------------------------------------------------

void GalleryListView::DataChanged( const DataChangedEvent& rDCEvt )
{
    if ( ( rDCEvt.GetType() == DATACHANGED_SETTINGS ) && ( rDCEvt.GetFlags() & SETTINGS_STYLE ) )
        InitSettings();
    else
        BrowseBox::DataChanged( rDCEvt );
}

// ------------------------------------------------------------------------

BOOL GalleryListView::SeekRow( long nRow )
{
    mnCurRow = nRow;
    return TRUE;
}

// -----------------------------------------------------------------------------

String GalleryListView::GetCellText(long _nRow, USHORT nColumnId) const
{
    String sRet;
    if( mpTheme && ( _nRow < static_cast< long >( mpTheme->GetObjectCount() ) ) )
    {
        SgaObject* pObj = mpTheme->AcquireObject( _nRow );

        if( pObj )
        {
            sRet = GalleryBrowser2::GetItemText( *mpTheme, *pObj, 
                ( GALLERY_BRWBOX_TITLE == nColumnId ) ? GALLERY_ITEM_TITLE : GALLERY_ITEM_PATH );

            mpTheme->ReleaseObject( pObj );
        }
    }

    return sRet;;
}

// -----------------------------------------------------------------------------

Rectangle GalleryListView::GetFieldCharacterBounds(sal_Int32 _nRow,sal_Int32 _nColumnPos,sal_Int32 nIndex)
{
    DBG_ASSERT(_nColumnPos >= 0 && _nColumnPos <= USHRT_MAX, "GalleryListView::GetFieldCharacterBounds: _nColumnId overflow");
    Rectangle aRect;
    if ( SeekRow(_nRow) )
    {
        SvxFont aFont( GetFont() );
        AccessibleStringWrap aStringWrap( *this, aFont, GetCellText(_nRow, sal::static_int_cast<USHORT>( GetColumnId( sal::static_int_cast<USHORT>(_nColumnPos) ) ) ) );
        
        // get the bounds inside the string
        aStringWrap.GetCharacterBounds(nIndex, aRect);

        // offset to 
    }
    return aRect;
}

// -----------------------------------------------------------------------------

sal_Int32 GalleryListView::GetFieldIndexAtPoint(sal_Int32 _nRow,sal_Int32 _nColumnPos,const Point& _rPoint)
{
    DBG_ASSERT(_nColumnPos >= 0 && _nColumnPos <= USHRT_MAX, "GalleryListView::GetFieldIndexAtPoint: _nColumnId overflow");
    sal_Int32 nRet = -1;
    if ( SeekRow(_nRow) )
    {
        SvxFont aFont( GetFont() );
        AccessibleStringWrap aStringWrap( *this, aFont, GetCellText(_nRow, sal::static_int_cast<USHORT>(GetColumnId(sal::static_int_cast<USHORT>(_nColumnPos)))) );
        nRet = aStringWrap.GetIndexAtPoint(_rPoint);
    }
    return nRet;
}

// ------------------------------------------------------------------------

void GalleryListView::PaintField( OutputDevice& rDev, const Rectangle& rRect, USHORT nColumnId ) const
{
    rDev.Push( PUSH_CLIPREGION );
    rDev.IntersectClipRegion( rRect );

    if( mpTheme && ( mnCurRow < mpTheme->GetObjectCount() ) )
    {
        SgaObject* pObj = mpTheme->AcquireObject( mnCurRow );

        if( pObj )
        {
            const long nTextPosY = rRect.Top() + ( ( rRect.GetHeight() - rDev.GetTextHeight() ) >> 1 );

            if( GALLERY_BRWBOX_TITLE == nColumnId )
            {
                Rectangle       aOutputRect( rRect.TopLeft(), Size( rRect.GetHeight(), rRect.GetHeight() ) );
                GraphicObject   aGrfObj;

                if( pObj->GetObjKind() == SGA_OBJ_SOUND )
                    aGrfObj = Graphic( BitmapEx( GAL_RESID( RID_SVXBMP_GALLERY_MEDIA ) ) );
                else if( pObj->IsThumbBitmap() )
                    aGrfObj = Graphic( pObj->GetThumbBmp() );
                else
                    aGrfObj = Graphic( pObj->GetThumbMtf() );

                Size aSize( rDev.LogicToPixel( aGrfObj.GetPrefSize(), aGrfObj.GetPrefMapMode() ) );

                if( aSize.Width() && aSize.Height() )
                {
                    if( ( aSize.Width() > aOutputRect.GetWidth() ) || ( aSize.Height() > aOutputRect.GetHeight() ) )
                    {
                        Point			aNewPos;
                        const double	fBmpWH	= (double) aSize.Width() / aSize.Height();
                        const double	fThmpWH = (double) aOutputRect.GetWidth() / aOutputRect.GetHeight();

                        // Bitmap an Thumbgroesse anpassen
                        if ( fBmpWH < fThmpWH )
                        {
                            aSize.Width() = (long) ( aOutputRect.GetHeight() * fBmpWH );
                            aSize.Height()= aOutputRect.GetHeight();
                        }
                        else
                        {
                            aSize.Width() = aOutputRect.GetWidth();
                            aSize.Height()= (long) ( aOutputRect.GetWidth() / fBmpWH );
                        }
                    }

                    aSize.Width() = Max( aSize.Width(), 4L );
                    aSize.Height() = Max( aSize.Height(), 4L );

                    const Point aPos( ( ( aOutputRect.GetWidth() - aSize.Width() ) >> 1 ) + aOutputRect.Left(),
                                      ( ( aOutputRect.GetHeight() - aSize.Height() ) >> 1 ) + aOutputRect.Top() );

                    aGrfObj.Draw( &rDev, aPos, aSize );
                }

                rDev.DrawText( Point( aOutputRect.Right() + 6, nTextPosY ), GalleryBrowser2::GetItemText( *mpTheme, *pObj, GALLERY_ITEM_TITLE ) );
            }
            else if( GALLERY_BRWBOX_PATH == nColumnId )
                rDev.DrawText( Point( rRect.Left(), nTextPosY ), GalleryBrowser2::GetItemText( *mpTheme, *pObj, GALLERY_ITEM_PATH ) );

            mpTheme->ReleaseObject( pObj );
        }
    }

    rDev.Pop();
}

// ------------------------------------------------------------------------

void GalleryListView::Command( const CommandEvent& rCEvt )
{
    BrowseBox::Command( rCEvt );

    if( rCEvt.GetCommand() == COMMAND_CONTEXTMENU )
    {
        const Point* pPos = NULL;

        if( rCEvt.IsMouseEvent() && ( GetRowAtYPosPixel( rCEvt.GetMousePosPixel().Y() ) != BROWSER_ENDOFSELECTION ) )
            pPos = &rCEvt.GetMousePosPixel();
        
        ( (GalleryBrowser2*) GetParent() )->ShowContextMenu( this, pPos );
    }
}

// ------------------------------------------------------------------------

void GalleryListView::KeyInput( const KeyEvent& rKEvt )
{
    if( !mpTheme || !static_cast< GalleryBrowser2* >( GetParent() )->KeyInput( rKEvt, this ) )
        BrowseBox::KeyInput( rKEvt );
}

// ------------------------------------------------------------------------

void GalleryListView::DoubleClick( const BrowserMouseEvent& rEvt )
{
    BrowseBox::DoubleClick( rEvt );

    if( rEvt.GetRow() != BROWSER_ENDOFSELECTION )
        ( (GalleryBrowser2*) GetParent() )->TogglePreview( this, &rEvt.GetPosPixel() );
}

// ------------------------------------------------------------------------

void GalleryListView::Select()
{
    if( maSelectHdl.IsSet() )
        maSelectHdl.Call( this );
}

// ------------------------------------------------------------------------

sal_Int8 GalleryListView::AcceptDrop( const BrowserAcceptDropEvent& )
{
    sal_Int8 nRet = DND_ACTION_NONE;

       if( mpTheme && !mpTheme->IsReadOnly() && !mpTheme ->IsImported() )
    {
        if( !mpTheme->IsDragging() )
            nRet = DND_ACTION_COPY;
        else
            nRet = DND_ACTION_COPY;
    }

    return nRet;
}

// ------------------------------------------------------------------------

sal_Int8 GalleryListView::ExecuteDrop( const BrowserExecuteDropEvent& rEvt )
{
    ExecuteDropEvent aEvt( rEvt );

    aEvt.maPosPixel.Y() += GetTitleHeight();
    
    return(	( (GalleryBrowser2*) GetParent() )->ExecuteDrop( *this, aEvt ) );
}

// ------------------------------------------------------------------------

void GalleryListView::StartDrag( sal_Int8, const Point& rPosPixel )
{
    ( (GalleryBrowser2*) GetParent() )->StartDrag( this, &rPosPixel );
}