CtrlLibraryTileView.cpp

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//
// CtrlLibraryTileView.cpp
//
// Copyright (c) Shareaza Development Team, 2002-2005.
// This file is part of SHAREAZA (www.shareaza.com)
//
// Shareaza is free software; you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// Shareaza 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Shareaza; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//

#include "StdAfx.h"
#include "Shareaza.h"
#include "Settings.h"
#include "Library.h"
#include "LibraryFolders.h"
#include "AlbumFolder.h"
#include "Schema.h"
#include "CtrlLibraryFrame.h"
#include "CtrlLibraryTree.h"
#include "CtrlLibraryTileView.h"
#include "DlgFolderProperties.h"
#include "CoolInterface.h"
#include "ShellIcons.h"
#include "Skin.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

BEGIN_MESSAGE_MAP(CLibraryTileView, CLibraryView)
        //{{AFX_MSG_MAP(CLibraryTileView)
        ON_WM_CREATE()
        ON_WM_DESTROY()
        ON_WM_SIZE()
        ON_WM_PAINT()
        ON_WM_VSCROLL()
        ON_WM_MOUSEWHEEL()
        ON_WM_LBUTTONDOWN()
        ON_WM_MOUSEMOVE()
        ON_WM_LBUTTONUP()
        ON_WM_RBUTTONDOWN()
        ON_WM_KEYDOWN()
        ON_WM_LBUTTONDBLCLK()
        ON_WM_CONTEXTMENU()
        ON_WM_CHAR()
        ON_UPDATE_COMMAND_UI(ID_LIBRARY_ALBUM_OPEN, OnUpdateLibraryAlbumOpen)
        ON_COMMAND(ID_LIBRARY_ALBUM_OPEN, OnLibraryAlbumOpen)
        ON_UPDATE_COMMAND_UI(ID_LIBRARY_ALBUM_DELETE, OnUpdateLibraryAlbumDelete)
        ON_COMMAND(ID_LIBRARY_ALBUM_DELETE, OnLibraryAlbumDelete)
        ON_UPDATE_COMMAND_UI(ID_LIBRARY_ALBUM_PROPERTIES, OnUpdateLibraryAlbumProperties)
        ON_COMMAND(ID_LIBRARY_ALBUM_PROPERTIES, OnLibraryAlbumProperties)
        //}}AFX_MSG_MAP
END_MESSAGE_MAP()


// CLibraryTileView construction

CLibraryTileView::CLibraryTileView()
{
        m_nCommandID    = ID_LIBRARY_VIEW_TILE;
        m_pszToolBar    = _T("CLibraryTileView");
}

CLibraryTileView::~CLibraryTileView()
{
}

// CLibraryTileView create and destroy

BOOL CLibraryTileView::PreCreateWindow(CREATESTRUCT& cs)
{
        return CLibraryView::PreCreateWindow( cs );
}

int CLibraryTileView::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
        if ( CLibraryView::OnCreate( lpCreateStruct ) == -1 ) return -1;

        m_szBlock.cx    = 252;
        m_szBlock.cy    = 56;
        m_nColumns              = 1;
        m_nRows                 = 0;

        m_pList                 = NULL;
        m_nCount                = 0;
        m_nBuffer               = 0;
        m_nScroll               = 0;
        m_nSelected             = 0;
        m_pFocus                = NULL;
        m_pFirst                = NULL;
        m_bDrag                 = FALSE;

        return 0;
}

void CLibraryTileView::OnDestroy()
{
        Clear();
        CLibraryView::OnDestroy();
}

// CLibraryTileView view operations

BOOL CLibraryTileView::CheckAvailable(CLibraryTreeItem* pSel)
{
        m_bAvailable = FALSE;

        if ( pSel != NULL && pSel->m_pSelNext == NULL && pSel->m_pVirtual != NULL )
        {
                m_bAvailable = ( pSel->m_pVirtual->GetFileCount() == 0 );
        }

        return m_bAvailable;
}

void CLibraryTileView::Update()
{
        CLibraryTreeItem* pFolders      = GetFolderSelection();
        CAlbumFolder* pFolder           = NULL;

        if ( pFolders == NULL || pFolders->m_pVirtual == NULL )
        {
                pFolder = Library.GetAlbumRoot();
        }
        else
        {
                if (    pFolders == NULL || pFolders->m_pSelNext != NULL ||
                                pFolders->m_pVirtual == NULL ||
                                pFolders->m_pVirtual->GetFileCount() > 0 )
                {
                        if ( m_nCount > 0 )
                        {
                                Clear();
                                Invalidate();
                        }

                        return;
                }

                pFolder = pFolders->m_pVirtual;
        }

        DWORD nCookie = GetFolderCookie();
        BOOL bChanged = FALSE;

        CLibraryTileItem** pList = m_pList + m_nCount - 1;

        for ( int nItem = m_nCount ; nItem ; nItem--, pList-- )
        {
                CLibraryTileItem* pTile = *pList;

                if ( pFolder->CheckFolder( pTile->m_pFolder ) )
                {
                        bChanged |= pTile->Update();
                        pTile->m_pFolder->m_nListCookie = nCookie;
                }
                else
                {
                        if ( pTile->m_bSelected ) Select( pTile, TS_FALSE );
                        if ( pTile == m_pFocus ) m_pFocus = NULL;
                        if ( pTile == m_pFirst ) m_pFirst = NULL;

                        delete pTile;
                        MoveMemory( pList, pList + 1, 4 * ( m_nCount - nItem ) );
                        m_nCount--;

                        bChanged = TRUE;
                }
        }

        if ( bChanged )
        {
                CRect rcClient;
                GetClientRect( &rcClient );
                int nMax        = ( ( m_nCount + m_nColumns - 1 ) / m_nColumns ) * m_szBlock.cy;
                m_nScroll       = max( 0, min( m_nScroll, nMax - rcClient.Height() + 1 ) );
        }

        for ( POSITION pos = pFolder->GetFolderIterator() ; pos ; )
        {
                CAlbumFolder* pChild = pFolder->GetNextFolder( pos );

                if ( pChild->m_nListCookie != nCookie )
                {
                        CLibraryTileItem* pTile = new CLibraryTileItem( pChild );

                        if ( m_nCount == m_nBuffer )
                        {
                                m_nBuffer += 64;
                                CLibraryTileItem** pList = new CLibraryTileItem*[ m_nBuffer ];
                                if ( m_nCount ) CopyMemory( pList, m_pList, 4 * m_nCount );
                                if ( m_pList ) delete [] m_pList;
                                m_pList = pList;
                        }

                        m_pList[ m_nCount++ ] = pTile;
                        pChild->m_nListCookie = nCookie;
                        bChanged = TRUE;
                }
        }

        if ( bChanged )
        {
                qsort( m_pList, m_nCount, 4, SortList );
                UpdateScroll();
        }
}

BOOL CLibraryTileView::Select(DWORD nObject)
{
        return FALSE;
}

// CLibraryTileView item list management operations

void CLibraryTileView::Clear()
{
        for ( int nItem = 0 ; nItem < m_nCount ; nItem++ )
        {
                delete m_pList[ nItem ];
        }

        if ( m_pList ) delete [] m_pList;

        m_pList         = NULL;
        m_nCount        = 0;
        m_nBuffer       = 0;
        m_nScroll       = 0;
        m_nSelected     = 0;
        m_pFocus        = NULL;
        m_pFirst        = NULL;

        m_pSelTile.RemoveAll();
        SelClear();
}

int CLibraryTileView::GetTileIndex(CLibraryTileItem* pTile) const
{
        CLibraryTileItem** pList = m_pList;

        for ( int nItem = 0 ; nItem < m_nCount ; nItem++, pList++ )
        {
                if ( *pList == pTile ) return nItem;
        }

        return -1;
}

BOOL CLibraryTileView::Select(CLibraryTileItem* pTile, TRISTATE bSelect)
{
        switch ( bSelect )
        {
        case TS_UNKNOWN:
                pTile->m_bSelected = ! pTile->m_bSelected;
                break;
        case TS_FALSE:
                if ( pTile->m_bSelected == FALSE ) return FALSE;
                pTile->m_bSelected = FALSE;
                break;
        case TS_TRUE:
                if ( pTile->m_bSelected == TRUE ) return FALSE;
                pTile->m_bSelected = TRUE;
                break;
        }

        if ( pTile->m_bSelected )
        {
                m_nSelected++;
                m_pSelTile.AddTail( pTile );
                SelAdd( (DWORD)pTile->m_pFolder );
        }
        else
        {
                m_nSelected--;
                if ( POSITION pos = m_pSelTile.Find( pTile ) )
                {
                        m_pSelTile.RemoveAt( pos );
                        SelRemove( (DWORD)pTile->m_pFolder );
                }
        }

        return TRUE;
}

BOOL CLibraryTileView::DeselectAll(CLibraryTileItem* pTile)
{
        CLibraryTileItem** pList = m_pList + m_nCount - 1;
        BOOL bChanged = FALSE;

        for ( int nItem = m_nCount ; nItem ; nItem--, pList-- )
        {
                if ( *pList != pTile )
                {
                        if ( (*pList)->m_bSelected ) bChanged = Select( *pList, TS_FALSE );
                }
        }

        return bChanged;
}

BOOL CLibraryTileView::SelectTo(CLibraryTileItem* pTile)
{
        BOOL bChanged = FALSE;

        if ( pTile )
        {
                m_pFocus = pTile;

                int nFirst      = GetTileIndex( m_pFirst );
                int nFocus      = GetTileIndex( m_pFocus );

                if ( GetAsyncKeyState( VK_CONTROL ) & 0x8000 )
                {
                        bChanged = Select( m_pFocus, TS_UNKNOWN );
                }
                else if ( GetAsyncKeyState( VK_SHIFT ) & 0x8000 )
                {
                        bChanged = DeselectAll();

                        if ( nFirst >= 0 && nFocus >= 0 )
                        {
                                if ( nFirst <= nFocus )
                                {
                                        for ( ; nFirst <= nFocus ; nFirst++ ) Select( m_pList[ nFirst ], TS_TRUE );
                                }
                                else
                                {
                                        for ( ; nFocus <= nFirst ; nFocus++ ) Select( m_pList[ nFocus ], TS_TRUE );
                                }

                                bChanged = TRUE;
                        }
                        else
                        {
                                bChanged |= Select( m_pFocus, TS_TRUE );
                        }
                }
                else
                {
                        if ( m_pFocus->m_bSelected == FALSE ) bChanged = DeselectAll( m_pFocus );
                        bChanged |= Select( m_pFocus );
                }

                if ( m_nSelected == 1 && m_pFocus->m_bSelected ) m_pFirst = m_pFocus;

                Highlight( m_pFocus );
        }
        else if (       ( GetAsyncKeyState( VK_SHIFT ) & 0x8000 ) == 0 &&
                                ( GetAsyncKeyState( VK_CONTROL ) & 0x8000 ) == 0 )
        {
                bChanged = DeselectAll();
        }

        if ( m_nSelected == 0 ) m_pFirst = NULL;

        return bChanged;
}

void CLibraryTileView::SelectTo(int nDelta)
{
        if ( m_nCount == 0 ) return;

        int nFocus = GetTileIndex( m_pFocus );

        if ( nFocus < 0 )
        {
                nFocus = 0;
        }
        else
        {
                nFocus += nDelta;
                if ( nFocus < 0 ) nFocus = 0;
                if ( nFocus >= m_nCount ) nFocus = m_nCount - 1;
        }

        if ( SelectTo( m_pList[ nFocus ] ) ) Invalidate();
}

void CLibraryTileView::Highlight(CLibraryTileItem* pItem)
{
        CRect rcClient, rcItem;

        GetClientRect( &rcClient );
        GetItemRect( pItem, &rcItem );

        if ( rcItem.top < rcClient.top )
        {
                ScrollBy( rcItem.top - rcClient.top );
        }
        else if ( rcItem.bottom > rcClient.bottom )
        {
                ScrollBy( rcItem.bottom - rcClient.bottom );
        }
}

int CLibraryTileView::SortList(LPCVOID pA, LPCVOID pB)
{
        CLibraryTileItem* ppA = *(CLibraryTileItem**)pA;
        CLibraryTileItem* ppB = *(CLibraryTileItem**)pB;
        return _tcsicoll( ppA->m_sTitle, ppB->m_sTitle );
}

// CLibraryTileView message handlers

void CLibraryTileView::OnSize(UINT nType, int cx, int cy)
{
        CLibraryView::OnSize( nType, cx, cy );

        m_nColumns      = cx / m_szBlock.cx;
        m_nRows         = cy / m_szBlock.cy + 1;

        m_nColumns = max( m_nColumns, 1 );

        UpdateScroll();
}

void CLibraryTileView::UpdateScroll()
{
        if ( m_nColumns == 0 ) return;

        SCROLLINFO pInfo;
        CRect rc;

        GetClientRect( &rc );

        pInfo.cbSize    = sizeof(pInfo);
        pInfo.fMask             = SIF_ALL & ~SIF_TRACKPOS;
        pInfo.nMin              = 0;
        pInfo.nMax              = ( ( m_nCount + m_nColumns - 1 ) / m_nColumns ) * m_szBlock.cy;
        pInfo.nPage             = rc.Height();;
        pInfo.nPos              = m_nScroll = max( 0, min( m_nScroll, pInfo.nMax - (int)pInfo.nPage + 1 ) );

        SetScrollInfo( SB_VERT, &pInfo, TRUE );

        Invalidate();
}

void CLibraryTileView::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
        CRect rc;
        GetClientRect( &rc );

        SetFocus();

        switch ( nSBCode )
        {
        case SB_BOTTOM:
                ScrollTo( 0xFFFFFF );
                break;
        case SB_LINEDOWN:
                ScrollBy( 32 );
                break;
        case SB_LINEUP:
                ScrollBy( -32 );
                break;
        case SB_PAGEDOWN:
                ScrollBy( rc.Height() );
                break;
        case SB_PAGEUP:
                ScrollBy( -rc.Height() );
                break;
        case SB_THUMBPOSITION:
        case SB_THUMBTRACK:
                ScrollTo( nPos );
                break;
        case SB_TOP:
                ScrollTo( 0 );
                break;
        }
}

BOOL CLibraryTileView::OnMouseWheel(UINT nFlags, short zDelta, CPoint pt)
{
        ScrollBy( zDelta * -m_szBlock.cy / WHEEL_DELTA / 2 );
        return TRUE;
}

void CLibraryTileView::ScrollBy(int nDelta)
{
        ScrollTo( max( 0, m_nScroll + nDelta ) );
}

void CLibraryTileView::ScrollTo(int nPosition)
{
        if ( nPosition == m_nScroll ) return;
        m_nScroll = nPosition;

        UpdateScroll();
        RedrawWindow( NULL, NULL, RDW_INVALIDATE );
}

void CLibraryTileView::OnPaint()
{
        CPaintDC dc( this );

        CDC* pBuffer = CoolInterface.GetBuffer( dc, m_szBlock );
        CRect rcBuffer( 0, 0, m_szBlock.cx, m_szBlock.cy );

        CFont* pOldFont = (CFont*)pBuffer->SelectObject( &CoolInterface.m_fntNormal );
        pBuffer->SetBkMode( OPAQUE );
        pBuffer->SetBkColor( CoolInterface.m_crWindow );
        pBuffer->SetTextColor( CoolInterface.m_crText );

        CDC dcMem;
        dcMem.CreateCompatibleDC( &dc );

        CRect rcClient;
        GetClientRect( &rcClient );
        CPoint pt( rcClient.left, rcClient.top - m_nScroll );

        CLibraryTileItem** pList = m_pList;

        for ( int nItem = m_nCount ; nItem && pt.y < rcClient.bottom ; nItem--, pList++ )
        {
                CLibraryTileItem* pTile = *pList;

                CRect rcBlock( pt.x, pt.y, pt.x + m_szBlock.cx, pt.y + m_szBlock.cy );

                if ( rcBlock.bottom >= rcClient.top && dc.RectVisible( &rcBlock ) )
                {
                        pBuffer->FillSolidRect( &rcBuffer, CoolInterface.m_crWindow );
                        pTile->Paint( pBuffer, rcBuffer, &dcMem );
                        dc.BitBlt( rcBlock.left, rcBlock.top, m_szBlock.cx, m_szBlock.cy,
                                pBuffer, 0, 0, SRCCOPY );
                        dc.ExcludeClipRect( &rcBlock );
                }

                pt.x += m_szBlock.cx;

                if ( pt.x + m_szBlock.cx > rcClient.right )
                {
                        pt.x = rcClient.left;
                        pt.y += m_szBlock.cy;
                }
        }

        pBuffer->SelectObject( pOldFont );
        dc.FillSolidRect( &rcClient, CoolInterface.m_crWindow );
}

CLibraryTileItem* CLibraryTileView::HitTest(const CPoint& point) const
{
        CRect rcClient;
        GetClientRect( &rcClient );

        CPoint pt( rcClient.left, rcClient.top - m_nScroll );

        CLibraryTileItem** pList = m_pList;

        for ( int nItem = m_nCount ; nItem && pt.y < rcClient.bottom ; nItem--, pList++ )
        {
                CLibraryTileItem* pTile = *pList;

                CRect rcBlock( pt.x, pt.y, pt.x + m_szBlock.cx, pt.y + m_szBlock.cy );

                if ( rcBlock.PtInRect( point ) ) return pTile;

                pt.x += m_szBlock.cx;

                if ( pt.x + m_szBlock.cx > rcClient.right )
                {
                        pt.x = rcClient.left;
                        pt.y += m_szBlock.cy;
                }
        }

        return NULL;
}

BOOL CLibraryTileView::GetItemRect(CLibraryTileItem* pTile, CRect* pRect)
{
        CRect rcClient;
        GetClientRect( &rcClient );

        CPoint pt( rcClient.left, rcClient.top - m_nScroll );

        CLibraryTileItem** pList = m_pList;

        for ( int nItem = m_nCount ; nItem ; nItem--, pList++ )
        {
                CRect rcBlock( pt.x, pt.y, pt.x + m_szBlock.cx, pt.y + m_szBlock.cy );

                if ( pTile == *pList )
                {
                        *pRect = rcBlock;
                        return TRUE;
                }

                pt.x += m_szBlock.cx;

                if ( pt.x + m_szBlock.cx > rcClient.right )
                {
                        pt.x = rcClient.left;
                        pt.y += m_szBlock.cy;
                }
        }

        return FALSE;
}

void CLibraryTileView::OnLButtonDown(UINT nFlags, CPoint point)
{
        CLibraryTileItem* pHit = HitTest( point );

        if ( SelectTo( pHit ) ) Invalidate();

        SetFocus();
        SetCapture();

        if ( pHit && ( nFlags & MK_RBUTTON ) == 0 && Settings.Library.ShowVirtual )
        {
                m_bDrag = TRUE;
                m_ptDrag = point;
        }

        CLibraryView::OnLButtonDown( nFlags, point );
}

void CLibraryTileView::OnMouseMove(UINT nFlags, CPoint point)
{
        if ( m_bDrag & ( nFlags & MK_LBUTTON ) )
        {
                CSize szDiff = point - m_ptDrag;

                if ( abs( szDiff.cx ) > 5 || abs( szDiff.cy ) > 5 )
                {
                        m_bDrag = FALSE;
                        StartDragging( point );
                }
        }

        CLibraryView::OnMouseMove( nFlags, point );
}

void CLibraryTileView::OnLButtonUp(UINT nFlags, CPoint point)
{
        ReleaseCapture();
        m_bDrag = FALSE;

        if ( ( nFlags & (MK_SHIFT|MK_CONTROL) ) == 0 && m_pFocus && m_pFocus->m_bSelected )
        {
                if ( DeselectAll( m_pFocus ) ) Invalidate();
        }
}

void CLibraryTileView::OnLButtonDblClk(UINT nFlags, CPoint point)
{
        SendMessage( WM_COMMAND, ID_LIBRARY_ALBUM_OPEN );
}

void CLibraryTileView::OnRButtonDown(UINT nFlags, CPoint point)
{
        OnLButtonDown( nFlags, point );
        CLibraryView::OnRButtonDown( nFlags, point );
}

void CLibraryTileView::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
        switch ( nChar )
        {
        case VK_LEFT:
                SelectTo( - 1 );
                break;
        case VK_RIGHT:
                SelectTo( 1 );
                break;
        case VK_UP:
                SelectTo( -m_nColumns );
                break;
        case VK_DOWN:
                SelectTo( m_nColumns );
                break;
        case VK_PRIOR:
                SelectTo( m_nRows * -m_nColumns );
                break;
        case VK_NEXT:
                ScrollBy( m_nRows * m_nColumns );
                break;
        case VK_HOME:
                SelectTo( -m_nCount );
                break;
        case VK_END:
                SelectTo( m_nCount );
                break;
        case VK_RETURN:
                PostMessage( WM_COMMAND, ID_LIBRARY_ALBUM_OPEN );
                break;
        }

        CLibraryView::OnKeyDown( nChar, nRepCnt, nFlags );
}

void CLibraryTileView::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
{
        if ( _istalnum( nChar ) )
        {
                CLibraryTileItem* pStart = m_pFocus;

                for ( int nLoop = 0 ; nLoop < 2 ; nLoop++ )
                {
                        CLibraryTileItem** pChild = m_pList;

                        for ( int nCount = m_nCount ; nCount ; nCount--, pChild++ )
                        {
                                if ( pStart != NULL )
                                {
                                        if ( pStart == *pChild ) pStart = NULL;
                                }
                                else if ( toupper( (*pChild)->m_sTitle.GetAt( 0 ) ) == toupper( (int)nChar ) )
                                {
                                        DeselectAll( m_pFocus = *pChild );
                                        Select( m_pFocus, TS_TRUE );
                                        Highlight( m_pFocus );
                                        Invalidate();
                                        return;
                                }
                        }
                }
        }

        CLibraryView::OnChar( nChar, nRepCnt, nFlags );
}

// CLibraryTileView drag setup

#define MAX_DRAG_SIZE   256
#define MAX_DRAG_SIZE_2 128

void CLibraryTileView::StartDragging(CPoint& ptMouse)
{
        CImageList* pImage = CreateDragImage( ptMouse );
        if ( ! pImage ) return;

        ReleaseCapture();
        ClientToScreen( &ptMouse );
        DragObjects( pImage, ptMouse );
}

CImageList* CLibraryTileView::CreateDragImage(const CPoint& ptMouse)
{
        CRect rcClient, rcOne, rcAll( 32000, 32000, -32000, -32000 );

        GetClientRect( &rcClient );

        for ( POSITION pos = m_pSelTile.GetHeadPosition() ; pos ; )
        {
                CLibraryTileItem* pTile = (CLibraryTileItem*)m_pSelTile.GetNext( pos );
                GetItemRect( pTile, &rcOne );

                if ( rcOne.IntersectRect( &rcClient, &rcOne ) )
                {
                        rcAll.left              = min( rcAll.left, rcOne.left );
                        rcAll.top               = min( rcAll.top, rcOne.top );
                        rcAll.right             = max( rcAll.right, rcOne.right );
                        rcAll.bottom    = max( rcAll.bottom, rcOne.bottom );
                }
        }

        BOOL bClipped = rcAll.Height() > MAX_DRAG_SIZE;

        if ( bClipped )
        {
                rcAll.left              = max( rcAll.left, ptMouse.x - MAX_DRAG_SIZE_2 );
                rcAll.right             = max( rcAll.right, ptMouse.x + MAX_DRAG_SIZE_2 );
                rcAll.top               = max( rcAll.top, ptMouse.y - MAX_DRAG_SIZE_2 );
                rcAll.bottom    = max( rcAll.bottom, ptMouse.y + MAX_DRAG_SIZE_2 );
        }

        CClientDC dcClient( this );
        CDC dcMem, dcDrag;
        CBitmap bmDrag;

        if ( ! dcMem.CreateCompatibleDC( &dcClient ) )
                return NULL;
        if ( ! dcDrag.CreateCompatibleDC( &dcClient ) )
                return NULL;
        if ( ! bmDrag.CreateCompatibleBitmap( &dcClient, rcAll.Width(), rcAll.Height() ) )
                return NULL;

        CBitmap *pOldDrag = dcDrag.SelectObject( &bmDrag );

        dcDrag.FillSolidRect( 0, 0, rcAll.Width(), rcAll.Height(), RGB( 250, 255, 250 ) );

        CRgn pRgn;

        if ( bClipped )
        {
                CPoint ptMiddle( ptMouse.x - rcAll.left, ptMouse.y - rcAll.top );
                pRgn.CreateEllipticRgn( ptMiddle.x - MAX_DRAG_SIZE_2, ptMiddle.y - MAX_DRAG_SIZE_2,
                                                                ptMiddle.x + MAX_DRAG_SIZE_2, ptMiddle.y + MAX_DRAG_SIZE_2 );
                dcDrag.SelectClipRgn( &pRgn );
        }

        CDC* pBuffer = CoolInterface.GetBuffer( dcClient, m_szBlock );
        CRect rcBuffer( 0, 0, m_szBlock.cx, m_szBlock.cy );

        CFont* pOldFont = (CFont*)pBuffer->SelectObject( &CoolInterface.m_fntNormal );

        for ( POSITION pos = m_pSelTile.GetHeadPosition() ; pos ; )
        {
                CLibraryTileItem* pTile = (CLibraryTileItem*)m_pSelTile.GetNext( pos );
                GetItemRect( pTile, &rcOne );
                CRect rcDummy;

                if ( rcDummy.IntersectRect( &rcAll, &rcOne ) )
                {
                        pBuffer->FillSolidRect( &rcBuffer, RGB( 250, 255, 250 ) );
                        pTile->Paint( pBuffer, rcBuffer, &dcMem );
                        dcDrag.BitBlt( rcOne.left - rcAll.left, rcOne.top - rcAll.top,
                                m_szBlock.cx, m_szBlock.cy, pBuffer, 0, 0, SRCCOPY );
                }
        }

        pBuffer->SelectObject( pOldFont );

        dcDrag.SelectObject( pOldDrag );

        dcDrag.DeleteDC();

        CImageList* pAll = new CImageList();
        pAll->Create( rcAll.Width(), rcAll.Height(), ILC_COLOR16|ILC_MASK, 1, 1 );
        pAll->Add( &bmDrag, RGB( 250, 255, 250 ) );

        bmDrag.DeleteObject();

        pAll->BeginDrag( 0, ptMouse - rcAll.TopLeft() );

        return pAll;
}


// CLibraryTileItem construction

CLibraryTileItem::CLibraryTileItem(CAlbumFolder* pFolder)
{
        m_pFolder       = pFolder;
        m_nCookie       = 0xFFFFFFFF;
        m_bSelected     = FALSE;
        Update();
}

CLibraryTileItem::~CLibraryTileItem()
{
}

// CLibraryTileItem operations

BOOL CLibraryTileItem::Update()
{
        if ( m_pFolder->m_nUpdateCookie == m_nCookie ) return FALSE;

        m_nCookie               = m_pFolder->m_nUpdateCookie;
        m_sTitle                = m_pFolder->m_sName;
        m_nIcon32               = m_pFolder->m_pSchema ? m_pFolder->m_pSchema->m_nIcon32 : -1;
        m_nIcon48               = m_pFolder->m_pSchema ? m_pFolder->m_pSchema->m_nIcon48 : -1;
        m_bCollection   = m_pFolder->m_bCollSHA1;

        CSchema* pSchema = m_pFolder->m_pSchema;

        if ( pSchema != NULL && m_pFolder->m_pXML != NULL )
        {
                m_sSubtitle1    = pSchema->m_sTileLine1;
                m_sSubtitle2    = pSchema->m_sTileLine2;

                pSchema->ResolveTokens( m_sSubtitle1, m_pFolder->m_pXML );
                pSchema->ResolveTokens( m_sSubtitle2, m_pFolder->m_pXML );
        }
        else
        {
                m_sSubtitle1.Empty();
                m_sSubtitle2.Empty();
        }

        return TRUE;
}

// CLibraryTileItem paint

void CLibraryTileItem::Paint(CDC* pDC, const CRect& rcBlock, CDC* pMemDC)
{
        CRect rc( &rcBlock );

        UINT nStyle = 0;

        if ( m_bSelected ) nStyle |= ILD_SELECTED;
        if ( m_bCollection ) nStyle |= INDEXTOOVERLAYMASK(SHI_O_COLLECTION);

        if ( m_nIcon48 >= 0 )
        {
                ImageList_DrawEx( ShellIcons.GetHandle( 48 ), m_nIcon48, *pDC,
                        rc.left + 5, rc.top + 4, 48, 48, CLR_NONE, CLR_DEFAULT, nStyle );
        }
        else if ( m_nIcon32 >= 0 )
        {
                ImageList_DrawEx( ShellIcons.GetHandle( 32 ), m_nIcon32, *pDC,
                        rc.left + 5 + 8, rc.top + 4 + 8, 32, 32, CLR_NONE, CLR_DEFAULT, nStyle );
        }

        rc.left += 48 + 5;
        rc.DeflateRect( 10, 5 );

        if ( m_bSelected )
        {
                pDC->SetBkColor( CoolInterface.m_crHighlight );
                pDC->SetTextColor( CoolInterface.m_crHiText );
                pDC->SetBkMode( OPAQUE );
        }
        else
        {
                pDC->SetBkColor( CoolInterface.m_crWindow );
                pDC->SetTextColor( CoolInterface.m_crText );
                pDC->SetBkMode( TRANSPARENT );
        }

        int nX = rc.left + 2;
        int nY = ( rc.top + rc.bottom ) / 2;
        int nH = pDC->GetTextExtent( _T("Xy") ).cy;

        if ( m_sSubtitle1.GetLength() > 0 )
        {
                CRect rcUnion( nX, nY, nX, nY );

                if ( m_sSubtitle2.GetLength() > 0 )
                {
                        nY -= ( nH * 3 ) / 2;
                        if ( m_bCollection ) pDC->SelectObject( &CoolInterface.m_fntBold );
                        DrawText( pDC, &rc, nX, nY, m_sTitle, &rcUnion );
                        if ( m_bCollection ) pDC->SelectObject( &CoolInterface.m_fntNormal );
                        if ( ! m_bSelected ) pDC->SetTextColor( CoolInterface.m_crDisabled );
                        DrawText( pDC, &rc, nX, nY + nH, m_sSubtitle1, &rcUnion );
                        DrawText( pDC, &rc, nX, nY + nH + nH, m_sSubtitle2, &rcUnion );
                }
                else
                {
                        if ( m_bCollection ) pDC->SelectObject( &CoolInterface.m_fntBold );
                        DrawText( pDC, &rc, nX, nY - nH, m_sTitle, &rcUnion );
                        if ( m_bCollection ) pDC->SelectObject( &CoolInterface.m_fntNormal );
                        if ( ! m_bSelected ) pDC->SetTextColor( CoolInterface.m_crDisabled );
                        DrawText( pDC, &rc, nX, nY, m_sSubtitle1, &rcUnion );
                }

                pDC->FillSolidRect( &rcUnion, pDC->GetBkColor() );
        }
        else
        {
                nY -= nH / 2;
                if ( m_bCollection ) pDC->SelectObject( &CoolInterface.m_fntBold );
                DrawText( pDC, &rc, nX, nY, m_sTitle );
                if ( m_bCollection ) pDC->SelectObject( &CoolInterface.m_fntNormal );
        }

        pDC->SelectClipRgn( NULL );
}

void CLibraryTileItem::DrawText(CDC* pDC, const CRect* prcClip, int nX, int nY, LPCTSTR pszText, CRect* prcUnion)
{
        CSize sz = pDC->GetTextExtent( pszText, _tcslen( pszText ) );
        CRect rc( nX - 2, nY - 1, nX + sz.cx + 2, nY + sz.cy + 1 );

        rc.IntersectRect( &rc, prcClip );

        pDC->ExtTextOut( nX, nY, ETO_CLIPPED|ETO_OPAQUE, &rc, pszText, _tcslen( pszText ), NULL );
        pDC->ExcludeClipRect( rc.left, rc.top, rc.right, rc.bottom );

        if ( prcUnion != NULL ) prcUnion->UnionRect( prcUnion, &rc );
}

// CLibraryTileView command handlers

void CLibraryTileView::OnContextMenu(CWnd* pWnd, CPoint point)
{
        Skin.TrackPopupMenu( m_pszToolBar, point, ID_LIBRARY_ALBUM_OPEN );
}

void CLibraryTileView::OnUpdateLibraryAlbumOpen(CCmdUI* pCmdUI)
{
        pCmdUI->Enable( m_nSelected == 1 );
}

void CLibraryTileView::OnLibraryAlbumOpen()
{
        if ( m_pSelTile.GetCount() == 0 ) return;
        CLibraryTileItem* pItem = (CLibraryTileItem*)m_pSelTile.GetHead();
        GetFrame()->Display( pItem->m_pFolder );
}

void CLibraryTileView::OnUpdateLibraryAlbumDelete(CCmdUI* pCmdUI)
{
        pCmdUI->Enable( m_nSelected > 0 );
}

void CLibraryTileView::OnLibraryAlbumDelete()
{
        if ( m_nSelected == 0 ) return;

        CString strFormat, strMessage;
        Skin.LoadString( strFormat, IDS_LIBRARY_FOLDER_DELETE );
        strMessage.Format( strFormat, m_nSelected );

        if ( AfxMessageBox( strMessage, MB_ICONQUESTION|MB_OKCANCEL ) != IDOK ) return;

        {
                CQuickLock oLock( Library.m_pSection );

                for ( POSITION pos = m_pSelTile.GetHeadPosition() ; pos ; )
                {
                        CLibraryTileItem* pTile = (CLibraryTileItem*)m_pSelTile.GetNext( pos );
                        CAlbumFolder* pFolder = pTile->m_pFolder;
                        if ( LibraryFolders.CheckAlbum( pFolder ) ) pFolder->Delete();
                }

        }
        PostUpdate();
}

void CLibraryTileView::OnUpdateLibraryAlbumProperties(CCmdUI* pCmdUI)
{
        pCmdUI->Enable( m_nSelected == 1 );
}

void CLibraryTileView::OnLibraryAlbumProperties()
{
        if ( m_pSelTile.GetCount() == 0 ) return;
        CLibraryTileItem* pItem = (CLibraryTileItem*)m_pSelTile.GetHead();

        CAlbumFolder* pFolder = pItem->m_pFolder;
        CFolderPropertiesDlg dlg( NULL, pFolder );

        if ( dlg.DoModal() == IDOK ) GetFrame()->Display( pFolder );
}

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