// UIdemo.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "UIdemo.h"
#include <commctrl.h>

// Vincent added code here
#include <Commdlg.h>

#define MAX_LOADSTRING 100

// Global Variables:
HINSTANCE			hInst;			// The current instance
HWND				hwndCB;			// The command bar handle

// Forward declarations of functions included in this code module:
ATOM				MyRegisterClass	(HINSTANCE, LPTSTR);
BOOL				InitInstance	(HINSTANCE, int);
LRESULT CALLBACK	WndProc			(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK	About			(HWND, UINT, WPARAM, LPARAM);

// Vincent added code here
typedef struct {
    TCHAR *pszLabel;
    DWORD wNotification;
} NOTELABELS;

LRESULT CALLBACK	DialogWndProc	(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK	ModelessDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
void Print(TCHAR *pFormat, ...);
void MenuCommandOpen(HWND hWnd);
HWND gHwndMain;

NOTELABELS nlCombo[] = {{TEXT ("CBN_ERRSPACE    "), (-1)},
                        {TEXT ("CBN_SELCHANGE   "), 1},
                        {TEXT ("CBN_DBLCLK      "), 2},
                        {TEXT ("CBN_SETFOCUS    "), 3},
                        {TEXT ("CBN_KILLFOCUS   "), 4},
                        {TEXT ("CBN_EDITCHANGE  "), 5},
                        {TEXT ("CBN_EDITUPDATE  "), 6},
                        {TEXT ("CBN_DROPDOWN    "), 7},
                        {TEXT ("CBN_CLOSEUP     "), 8},
                        {TEXT ("CBN_SELENDOK    "), 9},
                        {TEXT ("CBN_SELENDCANCEL"), 10},
};



int WINAPI WinMain(	HINSTANCE hInstance,
					HINSTANCE hPrevInstance,
					LPTSTR    lpCmdLine,
					int       nCmdShow)
{
	MSG msg;
	HACCEL hAccelTable;

	// Perform application initialization:
	if (!InitInstance (hInstance, nCmdShow)) 
	{
		return FALSE;
	}

	hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_UIDEMO);

	// Main message loop:
	while (GetMessage(&msg, NULL, 0, 0)) 
	{
		if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) 
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}

	return msg.wParam;
}

//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
//  COMMENTS:
//
//    It is important to call this function so that the application 
//    will get 'well formed' small icons associated with it.
//
ATOM MyRegisterClass(HINSTANCE hInstance, LPTSTR szWindowClass)
{
	WNDCLASS	wc;

    wc.style			= CS_HREDRAW | CS_VREDRAW;
    wc.lpfnWndProc		= (WNDPROC) WndProc;
    wc.cbClsExtra		= 0;
    wc.cbWndExtra		= 0;
    wc.hInstance		= hInstance;
    wc.hIcon			= LoadIcon(hInstance, MAKEINTRESOURCE(IDI_UIDEMO));
    wc.hCursor			= 0;
    wc.hbrBackground	= (HBRUSH) GetStockObject(WHITE_BRUSH);
    wc.lpszMenuName		= 0;
    wc.lpszClassName	= szWindowClass;

	return RegisterClass(&wc);
}

//
//  FUNCTION: InitInstance(HANDLE, int)
//
//  PURPOSE: Saves instance handle and creates main window
//
//  COMMENTS:
//
//    In this function, we save the instance handle in a global variable and
//    create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
	HWND	hWnd;
	TCHAR	szTitle[MAX_LOADSTRING];			// The title bar text
	TCHAR	szWindowClass[MAX_LOADSTRING];		// The window class name

	hInst = hInstance;		// Store instance handle in our global variable
	// Initialize global strings
	LoadString(hInstance, IDC_UIDEMO, szWindowClass, MAX_LOADSTRING);
	MyRegisterClass(hInstance, szWindowClass);

	LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
	hWnd = CreateWindow(szWindowClass, szTitle, WS_VISIBLE,
		CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);

	if (!hWnd)
	{	
		return FALSE;
	}

	ShowWindow(hWnd, nCmdShow);
	UpdateWindow(hWnd);
	if (hwndCB)
		CommandBar_Show(hwndCB, TRUE);

	return TRUE;
}

//
//  FUNCTION: WndProc(HWND, unsigned, WORD, LONG)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_COMMAND	- process the application menu
//  WM_PAINT	- Paint the main window
//  WM_DESTROY	- post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	HDC hdc;
	int wmId, wmEvent;
	PAINTSTRUCT ps;
	TCHAR szHello[MAX_LOADSTRING];

	INT nHeight=0;
    LPCREATESTRUCT lpcs;
	INT i;
    HWND hwndChild;

	gHwndMain = hWnd;

	switch (message) 
	{
		case WM_COMMAND:
			wmId    = LOWORD(wParam); 
			wmEvent = HIWORD(wParam); 
			// Parse the menu selections:
			switch (wmId)
			{
				case IDM_HELP_ABOUT:
				   Print(TEXT("AboutBox is launched"));
				   DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
				   Print(TEXT("About Box is Closed"));
				   break;
				case IDM_FILE_EXIT:
				   DestroyWindow(hWnd);
				   break;
// Vincent added code here
				case IDM_OPEN:
				   Print(TEXT("GetFileDialog is Launched"));
				   MenuCommandOpen(hWnd);
				   break;
				case IDM_DIALOG:
				   Print(TEXT("Main dialog is launched"));
				   DialogBox(hInst, (LPCTSTR)IDD_DIALOG, hWnd, (DLGPROC)DialogWndProc);
				   Print(TEXT("Main dialog is Closed"));
				   break;
				default:
				   return DefWindowProc(hWnd, message, wParam, lParam);
			}
			break;
		case WM_CREATE:
			hwndCB = CommandBar_Create(hInst, hWnd, 1);
			CommandBar_InsertMenubar(hwndCB, hInst, IDM_MENU, 0);
			CommandBar_AddAdornments(hwndCB, 0, 0);
// Vincent added code here
		    nHeight = CommandBar_Height (hwndCB);
		    lpcs = (LPCREATESTRUCT) lParam;
		    hwndChild = CreateWindowEx (0, TEXT ("listbox"),
                       TEXT (""), WS_VISIBLE | WS_CHILD | WS_VSCROLL |
                       LBS_USETABSTOPS | LBS_NOINTEGRALHEIGHT, 0,
                       nHeight, lpcs->cx, lpcs->cy - nHeight,
                       hWnd, (HMENU)IDC_RPTLIST, lpcs->hInstance, NULL);
		    // Destroy frame if window not created.
			if (!IsWindow (hwndChild)) {
				DestroyWindow (hWnd);
				return 0;
			}
			// Initialize tab stops for display list box.
			i = 8;
			SendMessage (hwndChild, LB_SETTABSTOPS, 1, (LPARAM)&i);

			break;
		case WM_PAINT:
			RECT rt;
			hdc = BeginPaint(hWnd, &ps);
			GetClientRect(hWnd, &rt);
			LoadString(hInst, IDS_HELLO, szHello, MAX_LOADSTRING);
			DrawText(hdc, szHello, _tcslen(szHello), &rt, 
				DT_SINGLELINE | DT_VCENTER | DT_CENTER);
			EndPaint(hWnd, &ps);
			break;
		case WM_DESTROY:
			CommandBar_Destroy(hwndCB);
			PostQuitMessage(0);
			break;
		default:
			return DefWindowProc(hWnd, message, wParam, lParam);
   }
   return 0;
}

// Mesage handler for the About box.
LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	RECT rt, rt1;
	int DlgWidth, DlgHeight;	// dialog width and height in pixel units
	int NewPosX, NewPosY;

	switch (message)
	{
		case WM_INITDIALOG:
			// trying to center the About dialog
			if (GetWindowRect(hDlg, &rt1)) {
				GetClientRect(GetParent(hDlg), &rt);
				DlgWidth	= rt1.right - rt1.left;
				DlgHeight	= rt1.bottom - rt1.top ;
				NewPosX		= (rt.right - rt.left - DlgWidth)/2;
				NewPosY		= (rt.bottom - rt.top - DlgHeight)/2;
				
				// if the About box is larger than the physical screen 
				if (NewPosX < 0) NewPosX = 0;
				if (NewPosY < 0) NewPosY = 0;
				SetWindowPos(hDlg, 0, NewPosX, NewPosY,
					0, 0, SWP_NOZORDER | SWP_NOSIZE);
			}
			return TRUE;

		case WM_COMMAND:
			if ((LOWORD(wParam) == IDOK) || (LOWORD(wParam) == IDCANCEL))
			{
				EndDialog(hDlg, LOWORD(wParam));
				return TRUE;
			}
			break;
	}
    return FALSE;
}

//========================================================================================
//=============================== Vincent added code here ================================
//========================================================================================

//=============================== Vincent added code here for callback functions ================================
LRESULT CALLBACK DialogWndProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	RECT rt, rt1;
	int DlgWidth, DlgHeight;	// dialog width and height in pixel units
	int NewPosX, NewPosY;

	TCHAR tchBuffer[128];

	switch (message)
	{
		case WM_INITDIALOG:
			// trying to center the About dialog
			if (GetWindowRect(hDlg, &rt1)) {
				GetClientRect(GetParent(hDlg), &rt);
				DlgWidth	= rt1.right - rt1.left;
				DlgHeight	= rt1.bottom - rt1.top ;
				NewPosX		= (rt.right - rt.left - DlgWidth)/2;
				NewPosY		= (rt.bottom - rt.top - DlgHeight)/2;
				
				// if the About box is larger than the physical screen 
				if (NewPosX < 0) NewPosX = 0;
				if (NewPosY < 0) NewPosY = 0;
				SetWindowPos(hDlg, 0, NewPosX, NewPosY,
					0, 0, SWP_NOZORDER | SWP_NOSIZE);
			}
			SendDlgItemMessage(hDlg, IDC_COMBO1, CB_INSERTSTRING, 0, (LPARAM)(LPCSTR)TEXT("Item 3"));
			SendDlgItemMessage(hDlg, IDC_COMBO1, CB_INSERTSTRING, 0, (LPARAM)(LPCSTR)TEXT("Item 2"));
			SendDlgItemMessage(hDlg, IDC_COMBO1, CB_INSERTSTRING, 0, (LPARAM)(LPCSTR)TEXT("Item 1"));
			SendDlgItemMessage(hDlg, IDC_COMBO1, CB_INSERTSTRING, 0, (LPARAM)(LPCSTR)TEXT("Item 0"));
			SendDlgItemMessage(hDlg, IDC_COMBO1, CB_SETCURSEL, 0, 0);
			return TRUE;

		case WM_COMMAND:
			if ((LOWORD(wParam) == IDOK) || (LOWORD(wParam) == IDCANCEL))
			{
				EndDialog(hDlg, LOWORD(wParam));
				return TRUE;
			}
			else if (LOWORD(wParam) == IDC_BUTTON1)
			{
				Print(TEXT("Button [Read] is pressed")); 
				GetDlgItemText(hDlg, IDC_EDIT1, tchBuffer, sizeof(tchBuffer));
				SetDlgItemText(hDlg, IDC_STATIC1, tchBuffer);
				Print(TEXT("Contents of [Edit box] : %s"), tchBuffer); 
			}
			else if (LOWORD(wParam) == IDC_COMBO1)
			{
                for (int i = 0; i < dim(nlCombo); i++)
				{
                    if(HIWORD (wParam) == nlCombo[i].wNotification)
					{
						Print(TEXT("Notification : %s, Combo box [Item %d] is selected"), 
							nlCombo[i].pszLabel, SendDlgItemMessage (hDlg, IDC_COMBO1, CB_GETCURSEL, 0, 0) );
                        break;
                    }
                }
			}
			else if (LOWORD(wParam) == IDC_RADIO1)
			{
				if (HIWORD (wParam) == BN_CLICKED)
					Print(TEXT("Radio 1"));
			}
			else if (LOWORD(wParam) == IDC_RADIO2)
			{
				if (HIWORD (wParam) == BN_CLICKED)
					Print(TEXT("Radio 2")); 
			}
			else if (LOWORD(wParam) == IDC_RADIO3)
			{
				if (HIWORD (wParam) == BN_CLICKED)
					Print(TEXT("Radio 3")); 
			}
			else if (LOWORD(wParam) == IDC_CHECK1)
			{
				if (HIWORD (wParam) == BN_CLICKED)
					if (IsDlgButtonChecked(hDlg, IDC_CHECK1) == BST_CHECKED)
						Print(TEXT("Check1 is checked"));
					else
						Print(TEXT("Check1 is unchecked"));
			}			
			else if (LOWORD(wParam) == IDC_CHECK2)
			{
				if (HIWORD (wParam) == BN_CLICKED)
					if (IsDlgButtonChecked(hDlg, IDC_CHECK2) == BST_CHECKED)
						Print(TEXT("Check2 is checked"));
					else
						Print(TEXT("Check2 is unchecked"));
			}			
			else if (LOWORD(wParam) == IDC_CHECK3)
			{
				if (HIWORD (wParam) == BN_CLICKED)
					if (IsDlgButtonChecked(hDlg, IDC_CHECK3) == BST_CHECKED)
						Print(TEXT("Check3 is checked"));
					else
						Print(TEXT("Check3 is unchecked"));
			}			
			else
			{
			}
			break;
	}
    return FALSE;
}

//=============================== Vincent added code here for local functions ================================
void Print(TCHAR *pFormat, ...)
{
    va_list ArgList;
    TCHAR Buffer[256];
	INT i=0;

    va_start (ArgList, pFormat);

    (void)wvsprintf (Buffer, pFormat, ArgList);
    i = SendDlgItemMessage(gHwndMain, IDC_RPTLIST, LB_ADDSTRING, 0, (LPARAM)(LPCTSTR)Buffer);
    if (i != LB_ERR)
		SendDlgItemMessage (gHwndMain, IDC_RPTLIST, LB_SETTOPINDEX, i, 0);

    va_end(ArgList);
}

void MenuCommandOpen(HWND hWnd)
{
    OPENFILENAME of;
    TCHAR szFileName [100] = {0};
    const LPTSTR pszOpenFilter = TEXT ("All Documents (*.*)\0*.*\0\0");
    INT rc;

    szFileName[0] = '\0';           // Initialize filename.
    memset (&of, 0, sizeof (of));   // Initialize File Open structure.

    of.lStructSize = sizeof (of);
    of.hwndOwner = hWnd;
    of.lpstrFile = szFileName;
    of.nMaxFile = 100;
    of.lpstrFilter = pszOpenFilter;
    of.Flags = 0;

    rc = GetOpenFileName (&of);
	Print(TEXT("GetOpenFileName returned: %x, filename: %s"), rc, szFileName);
}