sprint/gtl/Dialog.h

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/******************************************************************************
 *  GTL: GUI Template Library 
 *    A Cross Platform C++ Wrapper for Win32 users
 *  Copyright (C) 2007-2011 Paolo Medici (www.pmx.it)
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *******************************************************************************/

#ifndef _SPRINT_DIALOG_H
#define _SPRINT_DIALOG_H

#include <windows.h>
#include <sprint/gtl/window.h>
#include <sprint/log.h>

namespace sprint {
        namespace gtl {

template<class T>
INT_PTR CALLBACK DlgProc(      
    HWND hwndDlg,
    UINT uMsg,
    WPARAM wParam,
    LPARAM lParam
);

class CDialog: public CWindow {
      public:
             
      typedef CDialog parent;

      void OnInitDialog() { }
      void OnCommand(int cmd, int notify) { if(cmd==IDOK)  ::EndDialog(m_hwnd, TRUE); }
      void OnNotify(const LPNMHDR nmhr) { }
      void OnClose(INT_PTR ret=0) { ::EndDialog(m_hwnd, ret); m_hwnd = NULL; }
      void OnDestroy() { m_hwnd = NULL; }

      /*
      void OnMeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct) { }
      void OnDrawItem(const DRAWITEMSTRUCT & di) { }
      */

    template<class T>
    HWND ModelessTDialog(LPCTSTR lpTemplate, T * inst)
    {
    return ::CreateDialogParam(GetModuleHandle(NULL), lpTemplate, m_hwnd, &DlgProc<T>, reinterpret_cast<LPARAM>(inst) );         
    }

    template<class T>
    INT_PTR ModalTDialog(      
        LPCTSTR lpTemplate,
        const T & inst = T() )
    {
    return ::DialogBoxParam(GetModuleHandle(NULL), lpTemplate, m_hwnd, &DlgProc<T>, reinterpret_cast<LPARAM>(&inst) );    
    }
    
    inline 
    INT_PTR CreateDialogBox(LPCTSTR lpTemplate)
    {
      return ModalTDialog(lpTemplate, *this);
    }
      
   };


class CModelessDialog : public CDialog {
      public:

      typedef CModelessDialog parent;
                   
      void OnCommand(int cmd, int notify) { if(cmd==IDOK)  ::DestroyWindow(m_hwnd); }
      void OnClose() { ::DestroyWindow(m_hwnd); }

 };

template<class T>
INT_PTR CALLBACK DlgProc(      
    HWND hwndDlg,
    UINT uMsg,
    WPARAM wParam,
    LPARAM lParam
)
{
    switch(uMsg)
    {
     case WM_INITDIALOG:
          SetWindowLong(hwndDlg, DWL_USER, lParam);
          reinterpret_cast<T*>(lParam)->SetHwnd(hwndDlg);
          reinterpret_cast<T*>(lParam)->OnInitDialog();
          return TRUE;
     case WM_NOTIFY:
          reinterpret_cast<T*>(GetWindowLong(hwndDlg, DWL_USER))->OnNotify( reinterpret_cast<LPNMHDR>(lParam) );
          return TRUE;
     case WM_COMMAND:
          reinterpret_cast<T*>(GetWindowLong(hwndDlg, DWL_USER))->OnCommand(LOWORD(wParam), HIWORD(wParam));
          return TRUE;
     /*
     case WM_DRAWITEM:
          reinterpret_cast<T*>(GetWindowLong(hwndDlg, DWL_USER))->OnDrawItem(*(LPDRAWITEMSTRUCT)lParam );
          return TRUE;
     case WM_MEASUREITEM:
          reinterpret_cast<T*>(GetWindowLong(hwndDlg, DWL_USER))->OnDrawItem( (LPMEASUREITEMSTRUCT)lParam );
          return TRUE;
     */
     case WM_CLOSE:
          reinterpret_cast<T*>(GetWindowLong(hwndDlg, DWL_USER))->OnClose();
          return TRUE;
     case WM_DESTROY:
          reinterpret_cast<T*>(GetWindowLong(hwndDlg, DWL_USER))->OnDestroy();
          return TRUE;

/*     case WM_GETDLGCODE:
          return DLGC_WANTALLKEYS; */
     default:
             return FALSE;
    }    
}
    
template<class T>      
INT_PTR TDialogBox(LPCTSTR lpTemplate,
    HWND hWndParent,
    const T & inst = T())
    {
    return DialogBoxParam(GetModuleHandle(NULL), lpTemplate, hWndParent, &DlgProc<T>, reinterpret_cast<LPARAM>(&inst) );
    }

template<class T>      
INT_PTR CreateTDialog(LPCTSTR lpTemplate,
    HWND hWndParent,
    T * inst)
    {
    return CreateDialogParam(GetModuleHandle(NULL), lpTemplate, hWndParent, &DlgProc<T>, reinterpret_cast<LPARAM>(&inst) );
    }      

}

}

#endif