/////////////////////////////////////////////////////////////////////
// FrameWindow.cpp - Demonstrate how to use ATL Window Classes to  //
//                   build a framewindow application.              //
//                                                                 //
// Jim Fawcett, CSE775 - Distributed Objects, Spring 2007          //
/////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "FrameWindow.h"

#define MAX_LOADSTRING 100

INT_PTR CALLBACK	About(HWND, UINT, WPARAM, LPARAM);

//----< constructor establishes window style >-----------------------

CMainWindow::CMainWindow()
{
  CWndClassInfo& wci = GetWndClassInfo();
  if(!wci.m_atom)
  {
    wci.m_wc.lpszMenuName = MAKEINTRESOURCE(IDC_FRAMEWINDOW);
    wci.m_wc.hIcon = LoadIcon(
      _AtlBaseModule.GetResourceInstance(),
      MAKEINTRESOURCE(IDI_SMALL));
    wci.m_wc.hbrBackground = CreateSolidBrush(RGB(250,250,200));
    wci.m_wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
  }
}
//----< destructor returns deallocates font object >-----------------

CMainWindow::~CMainWindow()
{
  DeleteObject(font);
}
//----< Helper to create edit controls - could use atlctrls.h >------

HWND CMainWindow::
CreateEditControl(LPCTSTR text, int x, int y, int width, int height, short ID)
{
  hEdit = CreateWindow(
    _T("Edit"), _T(""),
    WS_CHILD | WS_VISIBLE | WS_BORDER | ES_LEFT | CS_PARENTDC,
    x, y, width, height, m_hWnd, (HMENU)ID, hInst, NULL
  );
  ::SendMessage(hEdit,WM_SETTEXT,0,(LPARAM)text);
  return (HWND)hEdit;
}
//
//----< Event hander for window creation event >---------------------

LRESULT CMainWindow::
OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
  hInst = ((LPCREATESTRUCT)lParam)->hInstance;
 
  font = CreateFont(
    46, 0, 0, 0, FW_SEMIBOLD, TRUE, FALSE, FALSE,
    DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
    DEFAULT_QUALITY, DEFAULT_PITCH,	_T("tahoma")
  );
  backgroundColor = RGB(250,250,200);
  hdc = BeginPaint(&ps);
  oldfont = SelectObject(hdc, font);
  oldcolor = SetBkColor(hdc,backgroundColor);
  EndPaint(&ps);

  RECT rect;
  GetClientRect(&rect);
  int EditWidth = rect.right - rect.left - 50;
  int EditX = 25;

  LPCTSTR text = _T("Enter text here");
  hEdit1 = CreateEditControl(_T(""),EditX, 20, EditWidth, 20, IDC_EDIT1);
  SetReadOnly(hEdit1);
  hEdit2 = CreateEditControl(text, EditX, 60, EditWidth, 20, IDC_EDIT2);
  return 0;
}
//----< Event handler for window size change >-----------------------

LRESULT CMainWindow::
OnSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
  RECT rect;
  GetClientRect(&rect);
  int EditWidth = rect.right - rect.left - 50;
  int EditX = 25;
  ::MoveWindow(hEdit1, EditX, 20, EditWidth, 20, TRUE);
  ::MoveWindow(hEdit2, EditX, 60, EditWidth, 20, TRUE);
  return 0;
}
//----< Event handler for paint message >----------------------------

LRESULT CMainWindow::
OnPaint(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
  hdc = BeginPaint(&ps);  
  RECT rect;
  GetClientRect(&rect);
  DrawText(
    hdc,__T("Hello ATL Windows"), -1, &rect,
    DT_CENTER | DT_VCENTER | DT_SINGLELINE);
  EndPaint(&ps);
  return 0;
}
//
//----< Event handler for left button click >------------------------

LRESULT CMainWindow::
OnLButton(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
  MessageBox(_T("Left Button Down"),_T("OnLButton"),MB_OK);
  return 0;
}
//----< Event handler for widow destruction >------------------------

LRESULT CMainWindow::
OnDestroy(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
  SelectObject(hdc, &oldfont);
  SetBkColor(hdc,oldcolor);
  DeleteObject(font);
  PostQuitMessage(0);
  return 0;
}
//----< Event handler for about box menu selection >-----------------

LRESULT CMainWindow::
OnAbout(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
  MessageBox(_T("ATL Windows Application"),_T("CSE775 - Distributed Objects"),MB_OK);
  return 0;
}
//----< Event handler for Exit menu selection >----------------------

LRESULT CMainWindow::
OnExit(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
  m_hWnd = 0;
  OnDestroy(WM_DESTROY, 0, 0, bHandled);
  return 0;
}
//----< Edit box get line of text helper - stolen from Atlctl.h >----

int CMainWindow::
GetLine(HWND hEdit, int nIndex, LPTSTR lpszBuffer, int nMaxLength) const
{		*(LPWORD)lpszBuffer = (WORD)nMaxLength;
  return (int)::SendMessage(hEdit, EM_GETLINE, nIndex, (LPARAM)lpszBuffer);
}
//----< send text typed into Edit2 to Edit1 >------------------------

LRESULT CMainWindow::
OnEditChange(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
  wchar_t buffer[255];
  int size = GetLine((HWND)hEdit2,0,buffer,255);
  if(size >= 255)
    size = 254;
  buffer[size] = (wchar_t)'\0';
  if(size > 0)
    SendMessage((HWND)hEdit1,WM_SETTEXT,0,(LPARAM)buffer);
  return 0;
}
//----< make edit window read only >---------------------------------

BOOL CMainWindow::SetReadOnly(HWND hEdit, BOOL bReadOnly)
{
  return (BOOL)::SendMessage(hEdit, EM_SETREADONLY, bReadOnly, 0L);
}


//
//----< entry point >------------------------------------------------
//
// This function is essentially all that is left of the original
// Win32 Windows application.  Even this has much removed and added
// since the wizard was here.

int APIENTRY _tWinMain(HINSTANCE hInstance,
                     HINSTANCE /* hPrevInstance */,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{
  TCHAR szTitle[MAX_LOADSTRING];  // The title bar text
  LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);

  CMainWindow wnd;
  wnd.Create(
    0,CWindow::rcDefault, szTitle, WS_OVERLAPPEDWINDOW, WS_EX_CLIENTEDGE
  );
  if(!wnd)
    return FALSE;

  int height = GetSystemMetrics(SM_CYSCREEN)/3;
  int width  = GetSystemMetrics(SM_CXSCREEN)/3;
  wnd.MoveWindow(width, height, width, height, TRUE); 
  wnd.ShowWindow(nCmdShow);
  wnd.UpdateWindow();

  HACCEL hAccelTable;
  hAccelTable 
    = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_FRAMEWINDOW));

  MSG msg;
  while (GetMessage(&msg, NULL, 0, 0))
  {
    if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
    {
      TranslateMessage(&msg);
      DispatchMessage(&msg);
    }
  }
  return (int) msg.wParam;
}