// DemoDlg.cpp : implementation file
//
#include "stdafx.h"
#include "MIDIDevDemo v2.h"
#include "DemoDlg.h"
#include "ShortMsg.h"
#include "midi.h"
#include "MIDIDevsDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CDemoDlg dialog
CDemoDlg::CDemoDlg(CWnd* pParent /*=NULL*/)
: CDialog(CDemoDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CDemoDlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
CDemoDlg::~CDemoDlg()
{
if(m_InDevice.IsOpen())
{
if(m_InDevice.IsRecording())
{
m_InDevice.StopRecording();
}
m_InDevice.Close();
}
if(m_OutDevice.IsOpen())
{
m_OutDevice.Close();
}
}
// Note-on event notification
void CDemoDlg::OnNoteOn(CPianoCtrl &PianoCtrl, unsigned char NoteId)
{
midi::CShortMsg ShortMsg(midi::NOTE_ON, 0, NoteId, 127, 0);
ShortMsg.SendMsg(m_OutDevice);
}
// Note-off event notification
void CDemoDlg::OnNoteOff(CPianoCtrl &PianoCtrl, unsigned char NoteId)
{
midi::CShortMsg ShortMsg(midi::NOTE_OFF, 0, NoteId, 0, 0);
ShortMsg.SendMsg(m_OutDevice);
}
// Receives MIDI short message
void CDemoDlg::ReceiveMsg(DWORD Msg, DWORD TimeStamp)
{
midi::CShortMsg ShortMsg(Msg, TimeStamp);
unsigned char Command = ShortMsg.GetCommand();
CString Text;
// Display command value
Text.Format("%d", ShortMsg.GetCommand());
m_Command.SetWindowText(Text);
// Display channel value
Text.Format("%d", ShortMsg.GetChannel());
m_Channel.SetWindowText(Text);
// Display data byte 1 value
Text.Format("%d", ShortMsg.GetData1());
m_Data1.SetWindowText(Text);
// Display data byte 2 value
Text.Format("%d", ShortMsg.GetData2());
m_Data2.SetWindowText(Text);
//
// If this is a note-on or note-off event, notify piano control so
// that it can update its display
//
if(Command == midi::NOTE_ON && ShortMsg.GetData2() > 0)
{
unsigned char Note = ShortMsg.GetData1();
// Range checking
if(Note >= m_Keys.GetLowNote() &&
Note <= m_Keys.GetHighNote())
{
m_Keys.NoteOn(Note);
}
}
else if(Command == midi::NOTE_OFF || (Command == midi::NOTE_ON &&
ShortMsg.GetData2() == 0))
{
unsigned char Note = ShortMsg.GetData1();
// Range checking
if(Note >= m_Keys.GetLowNote() &&
Note <= m_Keys.GetHighNote())
{
m_Keys.NoteOff(Note);
}
}
}
// Receives an erroneous short message
void CDemoDlg::OnError(DWORD Msg, DWORD TimeStamp)
{
MessageBox("An illegal MIDI short message was received.", "Error",
MB_ICONSTOP | MB_OK);
}
void CDemoDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CDemoDlg)
DDX_Control(pDX, IDC_GM_LIST, m_GMCombo);
DDX_Control(pDX, IDC_COMMAND, m_Command);
DDX_Control(pDX, IDC_CHANNEL, m_Channel);
DDX_Control(pDX, IDC_DATA1, m_Data1);
DDX_Control(pDX, IDC_DATA2, m_Data2);
//}}AFX_DATA_MAP
DDX_Control(pDX, IDC_MIDI_KEYS, m_Keys);
}
BEGIN_MESSAGE_MAP(CDemoDlg, CDialog)
//{{AFX_MSG_MAP(CDemoDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_COMMAND(ID_PREF_NOTE_COLOR, OnPrefNoteColor)
ON_COMMAND(ID_PREF_MIDIDEVICES, OnPrefMididevices)
ON_COMMAND(ID_FILE_EXIT, OnFileExit)
ON_CBN_SELCHANGE(IDC_GM_LIST, OnSelchangeGmList)
ON_COMMAND(ID_HELP_ABOUT, OnHelpAbout)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CDemoDlg message handlers
BOOL CDemoDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Add "About..." menu item to system menu.
// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
// Initialize piano control
m_Keys.Initialize(CMIDIKeyboard::LOW_NOTE, CMIDIKeyboard::HIGH_NOTE);
// Attach ourselves to the piano control so that we will be notified
// when note-on and note-off events occur
m_Keys.AttachListener(*this);
// Initialize General MIDI combo box
m_GMCombo.SetCurSel(0);
// Attempt to open MIDI input and output devices
try
{
// If there are any MIDI output devices available, open one.
if(midi::CMIDIOutDevice::GetNumDevs() > 0)
{
m_OutDevice.Open(0);
}
// Else there are no MIDI output devices available.
else
{
MessageBox("No MIDI output devices available.", "Warning",
MB_ICONWARNING | MB_OK);
}
// If there are any MIDI input devices available, open one and begin
// recording.
if(midi::CMIDIInDevice::GetNumDevs() > 0)
{
m_InDevice.SetReceiver(*this);
m_InDevice.Open(0);
// Start receiving MIDI events
m_InDevice.StartRecording();
}
// Else there are no MIDI input devices available.
else
{
MessageBox("No MIDI input devices available.", "Warning",
MB_ICONWARNING | MB_OK);
}
}
catch(const std::exception &ex)
{
MessageBox(ex.what(), "Error", MB_ICONSTOP | MB_OK);
}
return TRUE; // return TRUE unless you set the focus to a control
}
void CDemoDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.
void CDemoDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CDemoDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
// Note color preference
void CDemoDlg::OnPrefNoteColor()
{
CColorDialog Dlg(m_Keys.GetNoteOnColor());
if(Dlg.DoModal() == IDOK)
{
m_Keys.SetNoteOnColor(Dlg.GetColor());
}
}
// MIDI device preferences
void CDemoDlg::OnPrefMididevices()
{
try
{
CMIDIDevsDlg Dlg;
//
// Initialize MIDI device dialog box
//
if(m_OutDevice.IsOpen())
{
Dlg.SetOutDevId(m_OutDevice.GetDevID());
}
if(m_InDevice.IsOpen())
{
Dlg.SetInDevId(m_InDevice.GetDevID());
}
// Run dialog box
if(Dlg.DoModal() == IDOK)
{
// If the client clicked OK and they chose to change the
// MIDI output device
if(Dlg.IsOutDevChanged())
{
m_OutDevice.Close();
m_OutDevice.Open(Dlg.GetOutDevId());
OnSelchangeGmList();
}
// If the client clicked OK and they chose to change the
// MIDI input device
if(Dlg.IsInDevChanged())
{
if(m_InDevice.IsOpen())
{
if(m_InDevice.IsRecording())
{
// Stop receiving MIDI events
m_InDevice.StopRecording();
}
m_InDevice.Close();
}
m_InDevice.Open(Dlg.GetInDevId());
// Start receiving MIDI events
m_InDevice.StartRecording();
}
}
}
catch(const std::exception &ex)
{
MessageBox(ex.what(), "Error", MB_ICONSTOP | MB_OK);
}
}
// Exit the program
void CDemoDlg::OnFileExit()
{
SendMessage(WM_CLOSE);
}
// Select a new General MIDI patch
void CDemoDlg::OnSelchangeGmList()
{
unsigned char Patch = m_GMCombo.GetCurSel();
// Construct and send program change message
midi::CShortMsg Msg(midi::PROGRAM_CHANGE, 0, Patch, 0, 0);
Msg.SendMsg(m_OutDevice);
// Make sure the piano control regains focus when we are done with
// the Genera MIDI combo box
m_Keys.SetFocus();
}
void CDemoDlg::OnHelpAbout()
{
CAboutDlg Dlg;
Dlg.DoModal();
}