#pragma once
/////////////////////////////////////////////////////////////////////
// FrameWindow.h - Demonstrate how to use ATL Window Classes to    //
//                 build a framewindow application.                //
//                                                                 //
// Jim Fawcett, CSE775 - Distributed Objects, Spring 2007          //
/////////////////////////////////////////////////////////////////////
/*
 * Module Operations
 * =================
 * This project illustrates how to use the ATL Windows classes to
 * simplify the creation of a Framewindow that may host controls.
 *
 * Build Process
 * =============
 * Required Files:
 *   FrameWindow.h, FrameWindow.cpp, stdafx.h, 
 *   FrameWindow.ico, FrameWindow.rc, small.ico
 *
 * Build Command:
 *   devenv FrameWindow.vcproj /rebuild debug
 *
 * Maintenance History
 * ===================
 * ver 1.0 : 27 Feb 07
 * - first release
 */

#include "resource.h"

class CMainWindow : public CWindowImpl<CMainWindow>
{
public:

  CMainWindow();

  ~CMainWindow();

  ///////////////////////////////////////////////////////////////////
  // msg map macros build a switch statment in a CWindowImpl equivalent
  // to WinProc, CWindowImpl<T>::ProcessMessages(...)

  BEGIN_MSG_MAP(CMainWindow)
    MESSAGE_HANDLER(WM_CREATE,      OnCreate )
    MESSAGE_HANDLER(WM_PAINT,       OnPaint  )
    MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButton)
    MESSAGE_HANDLER(WM_DESTROY,     OnDestroy)
    MESSAGE_HANDLER(WM_SIZE,        OnSize   )
    COMMAND_HANDLER(IDM_ABOUT, 0,   OnAbout  )
    COMMAND_HANDLER(IDM_EXIT,  0,    OnExit  )
    COMMAND_HANDLER(IDC_EDIT2, EN_CHANGE, OnEditChange)
  END_MSG_MAP()
//
private:

  ///////////////////////////////////////////////
  // state used to avoid recreating windows
  // artifacts as messages roll in

  HFONT font;
  COLORREF backgroundColor;
  PAINTSTRUCT ps;
  HDC hdc;
  HGDIOBJ oldfont;
  COLORREF oldcolor;
  
  ///////////////////////////////////////////////
  // state used to provide access to windows

  HINSTANCE hInst;  // This executable
  HWND hEdit;       // Framewindow
  HWND hEdit1;      // First edit control
  HWND hEdit2;      // secont edit control

  ///////////////////////////////////////////////////////////////////
  // Creates edit control

  HWND CreateEditControl(
    LPCTSTR text, int x, int y, int width, int height, short ID
  );
  
  ///////////////////////////////////////////////////////////////////
  // msg handlers

  LRESULT 
    OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
  LRESULT 
    OnSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
  LRESULT 
    OnPaint(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
  LRESULT 
    OnLButton(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
  LRESULT 
    OnDestroy(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
  LRESULT 
    OnAbout(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled);
  LRESULT 
    OnExit(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled);
  LRESULT 
    OnEditChange(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled);

  ///////////////////////////////////////////////////////////////////
  // helper function from atlctrls.h

  int GetLine(HWND hEdit, int nIndex, LPTSTR lpszBuffer, int nMaxLength) const;
  BOOL SetReadOnly(HWND hEdit, BOOL bReadOnly = TRUE);
};