//---------------------------------------------------------------------------
#include <vcl.h>
#include "SaveFormUnit.h"
#pragma hdrstop

#include "GlobalUnit.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma link "PNGButton"
#pragma resource "*.dfm"
TSaveForm *SaveForm;

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

__fastcall TSaveForm::TSaveForm(TComponent* Owner, String strDefaultFile,
									int iLastOption, int iLastType)
	: TForm(Owner)
{
	m_editFileName->Text = strDefaultFile;
	m_imgComposeCheck->Tag = (bool)(iLastOption & 2);
	m_imgSongCheck->Tag = (bool)(iLastOption & 1);

	if( g_bPredefine && m_imgComposeCheck->Tag==0 && m_imgSongCheck->Tag==1 ){
   		m_imgSongCheck->Tag = 0;
	}

	m_iSaveType = iLastType;

	SetTransparent( this );
}
//---------------------------------------------------------------------------
void __fastcall TSaveForm::WMNCHitTest(TWMNCHitTest &Msg)
{
	TForm::Dispatch(&Msg);

	if( Msg.Result==HTCLIENT && Msg.YPos<Top+24 )
		Msg.Result = HTCAPTION;
}
//---------------------------------------------------------------------------

void __fastcall TSaveForm::ImgCheckClick(TObject *Sender)
{
	if( ExtractFileExt(m_editFileName->Text).CompareIC(".mid")==0 ){
		return;
	}

	TImage* pImg = (TImage*)Sender;

	if( !g_bPredefine || pImg==m_imgComposeCheck || m_imgComposeCheck->Tag==1 ){
		pImg->Tag = !pImg->Tag;
		pImg->Picture->Bitmap->Assign(m_pImgCheckState[pImg->Tag]);
		pImg->Invalidate();
	}

	if( g_bPredefine && pImg==m_imgComposeCheck && pImg->Tag==0 && m_imgSongCheck->Tag==1 ){
		m_imgSongCheck->Tag = 0;
		m_imgSongCheck->Picture->Bitmap->Assign(m_pImgCheckState[0]);
		m_imgSongCheck->Invalidate();
	}

	if( ( ExtractFileExt(m_editFileName->Text).CompareIC(".wav")==0 ||
			ExtractFileExt(m_editFileName->Text).CompareIC(".mp3")==0 ) &&
			( m_imgComposeCheck->Tag==1 || m_imgSongCheck->Tag==1 ) ){
		m_btnOk->Enabled = true;
	}
	else{
		m_btnOk->Enabled = false;
	}
}
//---------------------------------------------------------------------------

void __fastcall TSaveForm::FormCreate(TObject *Sender)
{
	m_lblCaption->Font->Color = RGB(60,43,23);

	m_pImgCheckState[0] = new TBitmap();
	m_pImgCheckState[0]->LoadFromResourceName(int(HInstance), L"BmpUnchecked");
	m_pImgCheckState[1] = new TBitmap();
	m_pImgCheckState[1]->LoadFromResourceName(int(HInstance), L"BmpChecked");

	//绘制圆角窗体
	HRGN hRgn = CreateRoundRectRgn( 0, 0, Width+1, Height+1, 16, 16 );
	SetWindowRgn( Handle, hRgn, false );
	DeleteObject( hRgn );
}
//---------------------------------------------------------------------------

void __fastcall TSaveForm::FormDestroy(TObject *Sender)
{
	for( int i=0; i<2; i++ ){
		if( m_pImgCheckState[i] )
			delete m_pImgCheckState[i];
	}
}
//---------------------------------------------------------------------------

void __fastcall TSaveForm::BtnBrowseClick(TObject *Sender)
{
	TSaveDialog * pDlg = new TSaveDialog(NULL);
	pDlg->Options << ofCreatePrompt << ofOverwritePrompt;
	pDlg->Title = L"保存为";
	pDlg->FileName = ExtractFileName( m_editFileName->Text );
	pDlg->InitialDir = ExtractFilePath( m_editFileName->Text );

#ifdef _PROFESSIONAL
	pDlg->Filter = "mp3文件 (*.mp3)|*.MP3|Wave文件 (*.wav)|*.WAV|midi文件 (*.mid)|*.MID";
#else
	pDlg->Filter = "mp3文件 (*.mp3)|*.MP3|Wave文件 (*.wav)|*.WAV";
#endif

	if( ExtractFileExt(m_editFileName->Text).CompareIC(".mp3")==0 ){
		m_iSaveType = FILETYPE_MP3;
	}
	else if( ExtractFileExt(m_editFileName->Text).CompareIC(".wav")==0 ){
		m_iSaveType = FILETYPE_WAVE;
	}
	else if( ExtractFileExt(m_editFileName->Text).CompareIC(".mid")==0 ){
#ifdef _PROFESSIONAL
		m_iSaveType = FILETYPE_MIDI;
#else
		m_iSaveType = FILETYPE_MP3;
#endif
	}

	pDlg->FilterIndex = m_iSaveType + 1;

	String strType;
	if( m_iSaveType==FILETYPE_WAVE ){
		strType = "wav";
	}
	else if( m_iSaveType==FILETYPE_MP3 ){
		strType = "mp3";
	}
	else if( m_iSaveType==FILETYPE_MIDI ){
		strType = "mid";
	}

	pDlg->DefaultExt = strType;

	if( pDlg->Execute(Handle) ){
		m_editFileName->Text = pDlg->FileName;
#ifdef _PROFESSIONAL
		if( ExtractFileExt(m_editFileName->Text).CompareIC(".mid")==0 ){
			if( m_imgComposeCheck->Tag!=1 ){
				m_imgComposeCheck->Tag = 1;
				m_imgComposeCheck->Picture->Bitmap->Assign(m_pImgCheckState[m_imgComposeCheck->Tag]);
				m_imgComposeCheck->Invalidate();
			}

			if( m_imgSongCheck->Tag != 0 ){
				m_imgSongCheck->Tag = 0;
				m_imgSongCheck->Picture->Bitmap->Assign(m_pImgCheckState[m_imgSongCheck->Tag]);
				m_imgSongCheck->Invalidate();
			}

			m_btnOk->Enabled = true;
		}
#endif
	}

	delete pDlg;
}
//---------------------------------------------------------------------------

void __fastcall TSaveForm::FileNameChange(TObject *Sender)
{
	if( ( ExtractFileExt(m_editFileName->Text).CompareIC(".wav")==0 ||
			ExtractFileExt(m_editFileName->Text).CompareIC(".mp3")==0 ) &&
			( m_imgComposeCheck->Tag==1 || m_imgSongCheck->Tag==1 ) ){
		m_btnOk->Enabled = true;
	}
#ifdef _PROFESSIONAL
	else if( ExtractFileExt(m_editFileName->Text).CompareIC(".mid")==0 &&
					m_imgComposeCheck->Tag==1 && m_imgSongCheck->Tag==0 ){

		m_btnOk->Enabled = true;
	}
#endif
	else{
		m_btnOk->Enabled = false;
	}
}
//---------------------------------------------------------------------------

void __fastcall TSaveForm::FormKeyDown(TObject *Sender, WORD &Key, TShiftState Shift)
{
	switch( Key ){
	case VK_RETURN:
		if( m_btnOk->Enabled )
	        ModalResult = mrOk;
		break;

	case VK_ESCAPE:
		ModalResult = mrCancel;
		break;
	}
}
//---------------------------------------------------------------------------

void __fastcall TSaveForm::FormActivate(TObject *Sender)
{
	if( ExtractFileExt(m_editFileName->Text).CompareIC(".mp3")==0 ){
		m_iSaveType = FILETYPE_MP3;
	}
	else if( ExtractFileExt(m_editFileName->Text).CompareIC(".wav")==0 ){
		m_iSaveType = FILETYPE_WAVE;
	}
#ifdef _PROFESSIONAL
	else if( ExtractFileExt(m_editFileName->Text).CompareIC(".mid")==0 ){
		m_iSaveType = FILETYPE_MIDI;
	}

	if( m_iSaveType==FILETYPE_MIDI ){
		m_imgComposeCheck->Tag = 1;
		m_imgSongCheck->Tag = 0;
	}
#endif
	m_imgComposeCheck->Picture->Bitmap->Assign(m_pImgCheckState[m_imgComposeCheck->Tag]);
	m_imgSongCheck->Picture->Bitmap->Assign(m_pImgCheckState[m_imgSongCheck->Tag]);

	FileNameChange( NULL );
}
//---------------------------------------------------------------------------