// WindowClassDefinition.cpp
//
// Revision Log
//
// Date       Who SAR     Notes
// ========== === ======= =====================================
//                        (c) Reliable Software, 1997, 98
//                        Bartosz Milewski, www.relisoft.com
// 2001-06-04 mph         add namespace rfc (Reliable Foundation Class)
// 2001-10-22 mph         Add functionality
//
//

#include "WindowClassDefinition.h"
#include "WinException.h"

namespace rfc
{

WindowClassDefinition::WindowClassDefinition(char const * className, 
                                              HINSTANCE hInst, 
                                              WNDPROC wndProc)
    : SimpleWindowClassDefinition(className, hInst)
{
   SetDefaults();
    _class.lpfnWndProc = wndProc;
}

WindowClassDefinition::WindowClassDefinition(int resId, HINSTANCE hInst, WNDPROC wndProc)
    : SimpleWindowClassDefinition(resId, hInst)
{
   SetDefaults();
    _class.lpfnWndProc = wndProc;
}

WindowClassDefinition::~WindowClassDefinition()
{
}

void WindowClassDefinition::SetDefaults()
{
    // Provide reasonable default values
    _class.cbSize          = sizeof(WNDCLASSEX);
    _class.style           = 0;
    _class.lpszClassName   = GetName();
    _class.hInstance       = GetInstance();
    _class.hIcon           = 0;
    _class.hIconSm         = 0;
    _class.lpszMenuName    = 0;
    _class.cbClsExtra      = 0;
    _class.cbWndExtra      = sizeof(void*);
    _class.hbrBackground   = (HBRUSH)GetStockObject(WHITE_BRUSH);
    //_class.hbrBackground   = 0;
    _class.hCursor         = ::LoadCursor(0, IDC_ARROW); // fixit: use LoadImage()
    //_class.hCursor         = 0;
    _class.lpfnWndProc     = NULL;
}

void WindowClassDefinition::SetCursor(HCURSOR hCursor)
{
    _class.hCursor = hCursor;
}

void WindowClassDefinition::SetMenu(int resId)
{
   if (resId)
      _class.lpszMenuName = MAKEINTRESOURCE(resId);
   else
      _class.lpszMenuName = 0;
}

void WindowClassDefinition::SetResIcons(int resId)
{
   if (resId)
   {
      _stdIcon.Load(_class.hInstance, resId);
      _smallIcon.Load(_class.hInstance, resId);
      _class.hIcon   = _stdIcon;
      _class.hIconSm = _smallIcon;
   }
   else
   {
      _class.hIcon   = 0;
      _class.hIconSm = 0;
   }
}

void WindowClassDefinition::SetStyle(UINT style)
{
   _class.style = style;
}

void WindowClassDefinition::Register()
{
    if (::RegisterClassEx(&_class) == 0)
        throw WinException("Internal error: RegisterClassEx failed.", __FILE__, __LINE__);
}

BOOL WindowClassDefinition::Unregister()
{
   return ::UnregisterClass(GetName(), GetInstance());
}

} // end namespace rfc