// Filename   : delwhite.cpp
// Last Change: 05-Oct-2011.
//

#include "delwhite.h"

// constructor
FrameDelWhite::FrameDelWhite( wxWindow* parent, wxWindowID id, const wxString& title, const wxPoint& pos, const wxSize& size, long style ) : wxFrame( parent, id, title, pos, size, style )
{
	this->SetSize( 1200, 1000 );
    this->SetBackgroundColour( wxColour(wxT("WHEAT")) );
	
	wxBoxSizer* bSizer;
	bSizer = new wxBoxSizer( wxVERTICAL );
	
	m_listCtrl = new wxListCtrl( this, ID_LSWHITE, wxDefaultPosition, wxDefaultSize, wxLC_ICON );
	bSizer->Add( m_listCtrl, 1, wxALL|wxEXPAND, 5 );
    m_imageList = new wxImageList( 63, 89 );
    m_listCtrl->AssignImageList( m_imageList, wxIMAGE_LIST_NORMAL );
	
	wxBoxSizer* bSizerBtn;
	bSizerBtn = new wxBoxSizer( wxHORIZONTAL );

	m_checkBox = new wxCheckBox( this, ID_CHECK, wxT("全ての画像を表示"), wxDefaultPosition, wxDefaultSize, 0 );
	bSizer->Add( m_checkBox, 0, wxALL, 5 );
	
	m_staticText = new wxStaticText( this, wxID_ANY, wxT("白紙ファイルを選択し，「削除」ボタンを押してください．") );
	bSizerBtn->Add( m_staticText, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5 );

	m_buttonDelWhite = new wxButton( this, ID_DELETE, wxT("削除"), wxDefaultPosition, wxDefaultSize, 0 );
	bSizerBtn->Add( m_buttonDelWhite, 0, wxALL, 5 );
	
	m_buttonCancel = new wxButton( this, ID_CANCEL, wxT("キャンセル"), wxDefaultPosition, wxDefaultSize, 0 );
	bSizerBtn->Add( m_buttonCancel, 0, wxALL, 5 );
	
	bSizer->Add( bSizerBtn, 0, wxEXPAND, 5 );

	this->SetSizer( bSizer );
	this->Layout();
	
	this->Centre( wxBOTH );
}

// destructor
FrameDelWhite::~FrameDelWhite()
{
}

// Event Table
BEGIN_EVENT_TABLE( FrameDelWhite, wxFrame )
    //EVT_LIST_ITEM_SELECTED( ID_LSTCTRL, FramePreview::ChageImage )
    EVT_CHECKBOX( ID_CHECK, FrameDelWhite::UpdateList )
    EVT_BUTTON( ID_DELETE, FrameDelWhite::DeleteImage )
    EVT_BUTTON( ID_CANCEL, FrameDelWhite::CloseFrame  )
END_EVENT_TABLE()

// Event Handlers
void FrameDelWhite::UpdateList(wxCommandEvent& WXUNUSED(event))
{
    LoadImages();
}

void FrameDelWhite::DeleteImage(wxCommandEvent& WXUNUSED(event))
{
    wxDateTime now = wxDateTime::Now();
    wxString trash = wxGetCwd() + wxFILE_SEP_PATH + wxT("trash") + wxFILE_SEP_PATH + now.Format(wxT("%Y%m%d%H%M%S"));
    wxMkdir( trash );

    long item = -1;
    for ( ; ; ) {
        item = m_listCtrl->GetNextItem( item, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED );
        if ( item == -1 )
            break;
        wxString file = m_listCtrl->GetItemText( item );
        
        wxString from = m_dir + wxFILE_SEP_PATH + file;
        wxString to   = trash + wxFILE_SEP_PATH + file;
        wxRenameFile( from, to, false );
    }
    LoadImages();
    return;
}

void FrameDelWhite::CloseFrame(wxCommandEvent& WXUNUSED(event))
{
    this->Close();
    return;
}

// Functions
void FrameDelWhite::LoadImages( void )
{
    m_listCtrl->DeleteAllItems();
    m_imageList->RemoveAll();
    wxDir dir(m_dir);
    wxString filename;
    if ( !dir.IsOpened() ) return;

    bool cout = dir.GetFirst( &filename, wxT("*.jpg"), wxDIR_FILES );

    int i=0;
    wxListItem item;
    while ( cout ) {
        wxString f = m_dir + wxFILE_SEP_PATH + filename;
        wxFile file( f );
        long len = file.Length();
        if ( !m_checkBox->IsChecked() && len > 150000 ) { 
            cout = dir.GetNext( &filename );
            continue;
        }

        item.SetId(i);
        item.SetMask(wxLIST_MASK_STATE|wxLIST_MASK_TEXT|wxLIST_MASK_IMAGE);
        item.SetStateMask(wxLIST_STATE_SELECTED);
        item.SetState(wxLIST_STATE_SELECTED);
        item.SetImage(i);
        item.SetText(filename);
        m_listCtrl->InsertItem( item );
        m_listCtrl->SetItem( item );

        wxImage img( f, wxBITMAP_TYPE_JPEG );
        wxBitmap bmp( img.Scale( 63, 89, wxIMAGE_QUALITY_HIGH ) );
        m_imageList->Add( bmp );
        cout = dir.GetNext( &filename );
        i++;
    }

    return;
}