/////////////////////////////////////////////////////////////////////////////
// Name: mfctest.cpp
-// Purpose: Sample to demonstrate mixing MFC and wxWindows code
+// Purpose: Sample to demonstrate mixing MFC and wxWidgets code
// Author: Julian Smart
// Id: $Id$
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-// This sample pops up an initial wxWindows frame, with a menu item
+// This sample pops up an initial wxWidgets frame, with a menu item
// that allows a new MFC window to be created. Note that CDummyWindow
-// is a class that allows a wxWindows window to be seen as a CWnd
+// is a class that allows a wxWidgets window to be seen as a CWnd
// for the purposes of specifying a valid main window to the
// MFC initialisation.
//
// You can easily modify this code so that an MFC window pops up
-// initially as the main frame, and allows wxWindows frames to be
+// initially as the main frame, and allows wxWidgets frames to be
// created subsequently.
//
// (1) Make MyApp::OnInit not create a main window.
//
// IMPORTANT NOTES:
//
-// (1) You need to set wxUSE_MFC to 1 in include/wx/msw/setup.h, which switches
-// off some debugging features and also removes the windows.h inclusion
-// in wxprec.h (MFC headers don't like this to have been included previously).
-// Set to 'Use MFC in a shared DLL' or add _AFXDLL to preprocessor settings.
-// Then recompile wxWindows and this sample.
+// (1) You may need to set wxUSE_MFC to 1 in include/wx/msw/setup.h but
+// normally this shouldn't be needed any longer, i.e. it works without
+// it for me (VZ)
//
-// (2) I can't get the sample to link and run using a static MFC library, only the DLL
-// version. Perhaps someone else is a wizard at working out the required settings
-// in the wxWin library and the sample; then debugging the assert problem may be
-// easier.
+// (2) You should link with MFC DLL, not static libraries: or, to use static
+// run-time libraries, use this command for both building wxWidgets and
+// the sample:
//
-// (3) Compiling wxWindows in DLL mode currently includes windows.h, so you must only
-// try linking wxWindows statically.
+// nmake -f makefile.vc BUILD=debug SHARED=0 DEBUG_RUNTIME_LIBS=0 RUNTIME_LIBS=static all
+//
+// Unless the run-time library settings match for wxWidgets and MFC, you
+// will get link errors for symbols such as __mbctype, __argc, and __argv
+//
+// (3) If you see bogus memory leaks within the MSVC IDE on exit, in this
+// sample or in your own project, you must be using __WXDEBUG__ +
+// WXUSINGDLL + _AFXDLL
+// Unfortunately this confuses the MSVC/MFC leak detector. To do away with
+// these bogus memory leaks, add this to the list of link objects, make it
+// first: mfc[version][u]d.lib
+// - [version] -> 42 or 70 or 80 etc
+// - u if using Unicode
+//
+// (4) Unicode builds may produce the linker error "unresolved external symbol _WinMain@16".
+// MFC requires you to manually add the Unicode entry point to the linker settings,
+// Entry point symbol -> wWinMainCRTStartup
+
+#include "stdafx.h"
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#pragma hdrstop
#endif
-#include "wx/wx.h"
-
-#if defined(_WINDOWS_) || !wxUSE_MFC
-#error "Sorry, you need to edit include/wx/msw/setup.h, set wxUSE_MFC to 1, and recompile the library."
-#endif
-
-#ifdef new
-#undef new
+#ifndef WX_PRECOMP
+ #include "wx/wx.h"
#endif
-#include "stdafx.h"
-
-#ifdef DrawText
-#undef DrawText
-#endif
+#include "wx/evtloop.h"
#include "resource.h"
//
CTheApp theApp;
-// wxWindows elements
+// wxWidgets elements
// Define a new application type
class MyApp: public wxApp
-{ public:
-bool OnInit(void);
-wxFrame *CreateFrame(void);
+{
+public:
+ virtual bool OnInit();
+
+ // we need to override this as the default behaviour only works when we're
+ // running wxWidgets main loop, not MFC one
+ virtual void ExitMainLoop();
+
+ wxFrame *CreateFrame();
};
class MyCanvas: public wxScrolledWindow
class MyChild: public wxFrame
{
public:
- MyCanvas *canvas;
MyChild(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size, const long style);
- ~MyChild(void);
-
+ virtual ~MyChild();
+
void OnQuit(wxCommandEvent& event);
void OnNew(wxCommandEvent& event);
void OnActivate(wxActivateEvent& event);
-
+
+ MyCanvas *canvas;
+
DECLARE_EVENT_TABLE()
};
-// For drawing lines in a canvas
-long xpos = -1;
-long ypos = -1;
-
// ID for the menu quit command
#define HELLO_QUIT 1
#define HELLO_NEW 2
DECLARE_APP(MyApp)
-IMPLEMENT_APP(MyApp)
-/////////////////////////////////////////////////////////////////////////////
+// notice use of IMPLEMENT_APP_NO_MAIN() instead of the usual IMPLEMENT_APP!
+IMPLEMENT_APP_NO_MAIN(MyApp)
-// CMainWindow constructor:
-// Create the window with the appropriate style, size, menu, etc.
-//
CMainWindow::CMainWindow()
{
- LoadAccelTable( "MainAccelTable" );
- Create( NULL, "Hello Foundation Application",
- WS_OVERLAPPEDWINDOW, rectDefault, NULL, "MainMenu" );
+ LoadAccelTable( wxT("MainAccelTable") );
+ Create( NULL, wxT("Hello Foundation Application"),
+ WS_OVERLAPPEDWINDOW, rectDefault, NULL, wxT("MainMenu") );
}
-// OnPaint:
-// This routine draws the string "Hello, Windows!" in the center of the
-// client area. It is called whenever Windows sends a WM_PAINT message.
-// Note that creating a CPaintDC automatically does a BeginPaint and
-// an EndPaint call is done when it is destroyed at the end of this
-// function. CPaintDC's constructor needs the window (this).
-//
void CMainWindow::OnPaint()
{
- CString s = "Hello, Windows!";
+ CString s = wxT("Hello, Windows!");
CPaintDC dc( this );
CRect rect;
-
+
GetClientRect( rect );
dc.SetTextAlign( TA_BASELINE | TA_CENTER );
dc.SetTextColor( ::GetSysColor( COLOR_WINDOWTEXT ) );
s, s.GetLength() );
}
-// OnAbout:
-// This member function is called when a WM_COMMAND message with an
-// IDM_ABOUT code is received by the CMainWindow class object. The
-// message map below is responsible for this routing.
-//
-// We create a ClDialog object using the "AboutBox" resource (see
-// hello.rc), and invoke it.
-//
void CMainWindow::OnAbout()
{
- CDialog about( "AboutBox", this );
+ CDialog about( wxT("AboutBox"), this );
about.DoModal();
}
void CMainWindow::OnTest()
{
- wxMessageBox("This is a wxWindows message box.\nWe're about to create a new wxWindows frame.", "wxWindows", wxOK);
+ wxMessageBox(wxT("This is a wxWidgets message box.\nWe're about to create a new wxWidgets frame."), wxT("wxWidgets"), wxOK);
wxGetApp().CreateFrame();
}
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
-/////////////////////////////////////////////////////////////////////////////
-// CTheApp
-
-// InitInstance:
-// When any CTheApp object is created, this member function is automatically
-// called. Any data may be set up at this point.
-//
-// Also, the main window of the application should be created and shown here.
-// Return TRUE if the initialization is successful.
-//
BOOL CTheApp::InitInstance()
{
- SetDialogBkColor(); // hook gray dialogs (was default in MFC V1)
-
- wxEntry((WXHINSTANCE) m_hInstance, (WXHINSTANCE) m_hPrevInstance, m_lpCmdLine, m_nCmdShow, FALSE);
-
+ if ( !CWinApp::InitInstance() )
+ return FALSE;
+
+ // TODO: cmd line parsing
+ WXDLLIMPEXP_BASE void wxSetInstance(HINSTANCE hInst);
+ wxSetInstance(m_hInstance);
+ wxApp::m_nCmdShow = m_nCmdShow;
+ int argc = 0;
+ wxChar **argv = NULL;
+ wxEntryStart(argc, argv);
+ if ( !wxTheApp || !wxTheApp->CallOnInit() )
+ return FALSE;
+
#if START_WITH_MFC_WINDOW
// Demonstrate creation of an initial MFC main window.
m_pMainWnd = new CMainWindow();
m_pMainWnd->ShowWindow( m_nCmdShow );
m_pMainWnd->UpdateWindow();
-#else
- // Demonstrate creation of an initial wxWindows main window.
- // Wrap wxWindows window in a dummy MFC window and
+#else
+ // Demonstrate creation of an initial wxWidgets main window.
+ // Wrap wxWidgets window in a dummy MFC window and
// make the main window.
if (wxTheApp && wxTheApp->GetTopWindow())
{
m_pMainWnd = new CDummyWindow((HWND) wxTheApp->GetTopWindow()->GetHWND());
}
#endif
-
+
return TRUE;
}
int CTheApp::ExitInstance()
{
- // OnExit isn't called by CleanUp so must be called explicitly.
- wxTheApp->OnExit();
- wxApp::CleanUp();
-
+#if !START_WITH_MFC_WINDOW
+ delete m_pMainWnd;
+#endif
+
+ if ( wxTheApp )
+ wxTheApp->OnExit();
+ wxEntryCleanup();
+
return CWinApp::ExitInstance();
}
-// Override this to provide wxWindows message loop
-// compatibility
-
+// Override this to provide wxWidgets message loop compatibility
BOOL CTheApp::PreTranslateMessage(MSG *msg)
{
- if (wxTheApp && wxTheApp->ProcessMessage((WXMSG*) msg))
+ wxEventLoop * const
+ evtLoop = static_cast<wxEventLoop *>(wxEventLoop::GetActive());
+ if ( evtLoop && evtLoop->PreProcessMessage(msg) )
return TRUE;
- else
- return CWinApp::PreTranslateMessage(msg);
+
+ return CWinApp::PreTranslateMessage(msg);
}
-BOOL CTheApp::OnIdle(LONG lCount)
+BOOL CTheApp::OnIdle(LONG WXUNUSED(lCount))
{
- if (wxTheApp)
- return wxTheApp->ProcessIdle();
- else
- return FALSE;
+ return wxTheApp && wxTheApp->ProcessIdle();
}
/*********************************************************************
-* wxWindows elements
+* wxWidgets elements
********************************************************************/
-bool MyApp::OnInit(void)
+bool MyApp::OnInit()
{
+ if ( !wxApp::OnInit() )
+ return false;
+
#if !START_WITH_MFC_WINDOW
+ // as we're not inside wxWidgets main loop, the default logic doesn't work
+ // in our case and we need to do this explicitly
+ SetExitOnFrameDelete(true);
- // Exit app when the top level frame is deleted
- SetExitOnFrameDelete(TRUE);
-
(void) CreateFrame();
#endif
- return TRUE;
+ return true;
}
-wxFrame *MyApp::CreateFrame(void)
+void MyApp::ExitMainLoop()
{
- MyChild *subframe = new MyChild(NULL, "Canvas Frame", wxPoint(10, 10), wxSize(300, 300),
+ // instead of existing wxWidgets main loop, terminate the MFC one
+ ::PostQuitMessage(0);
+}
+
+wxFrame *MyApp::CreateFrame()
+{
+ MyChild *subframe = new MyChild(NULL, wxT("Canvas Frame"), wxPoint(10, 10), wxSize(300, 300),
wxDEFAULT_FRAME_STYLE);
-
- subframe->SetTitle("wxWindows canvas frame");
-
+
+ subframe->SetTitle(wxT("wxWidgets canvas frame"));
+
// Give it a status line
subframe->CreateStatusBar();
-
+
// Make a menubar
wxMenu *file_menu = new wxMenu;
-
- file_menu->Append(HELLO_NEW, "&New MFC Window");
- file_menu->Append(HELLO_QUIT, "&Close");
-
+
+ file_menu->Append(HELLO_NEW, wxT("&New MFC Window"));
+ file_menu->Append(HELLO_QUIT, wxT("&Close"));
+
wxMenuBar *menu_bar = new wxMenuBar;
-
- menu_bar->Append(file_menu, "&File");
-
+
+ menu_bar->Append(file_menu, wxT("&File"));
+
// Associate the menu bar with the frame
subframe->SetMenuBar(menu_bar);
-
+
int width, height;
subframe->GetClientSize(&width, &height);
-
+
MyCanvas *canvas = new MyCanvas(subframe, wxPoint(0, 0), wxSize(width, height));
canvas->SetCursor(wxCursor(wxCURSOR_PENCIL));
- subframe->canvas = canvas;
- subframe->Show(TRUE);
+ subframe->canvas = canvas;
+ subframe->Show(true);
// Return the main frame window
return subframe;
END_EVENT_TABLE()
// Define a constructor for my canvas
-MyCanvas::MyCanvas(wxWindow *parent, const wxPoint& pos, const wxSize& size):
-wxScrolledWindow(parent, -1, pos, size)
+MyCanvas::MyCanvas(wxWindow *parent, const wxPoint& pos, const wxSize& size)
+ : wxScrolledWindow(parent, -1, pos, size)
{
}
// Define the repainting behaviour
-void MyCanvas::OnPaint(wxPaintEvent& event)
+void MyCanvas::OnPaint(wxPaintEvent& WXUNUSED(event))
{
wxPaintDC dc(this);
-
+
dc.SetFont(* wxSWISS_FONT);
dc.SetPen(* wxGREEN_PEN);
dc.DrawLine(0, 0, 200, 200);
dc.DrawLine(200, 0, 0, 200);
-
+
dc.SetBrush(* wxCYAN_BRUSH);
dc.SetPen(* wxRED_PEN);
dc.DrawRectangle(100, 100, 100, 50);
dc.DrawRoundedRectangle(150, 150, 100, 50, 20);
-
+
dc.DrawEllipse(250, 250, 100, 50);
- dc.DrawSpline(50, 200, 50, 100, 200, 10);
dc.DrawLine(50, 230, 200, 230);
- dc.DrawText("This is a test string", 50, 230);
+ dc.DrawText(wxT("This is a test string"), 50, 230);
}
// This implements a tiny doodling program! Drag the mouse using
// the left button.
void MyCanvas::OnMouseEvent(wxMouseEvent& event)
{
+ static long s_xpos = -1;
+ static long s_ypos = -1;
+
wxClientDC dc(this);
dc.SetPen(* wxBLACK_PEN);
wxPoint pos = event.GetPosition();
- if (xpos > -1 && ypos > -1 && event.Dragging())
+ if (s_xpos > -1 && s_ypos > -1 && event.Dragging())
{
- dc.DrawLine(xpos, ypos, pos.x, pos.y);
+ dc.DrawLine(s_xpos, s_ypos, pos.x, pos.y);
}
- xpos = pos.x;
- ypos = pos.y;
+
+ s_xpos = pos.x;
+ s_ypos = pos.y;
}
BEGIN_EVENT_TABLE(MyChild, wxFrame)
EVT_ACTIVATE(MyChild::OnActivate)
END_EVENT_TABLE()
-MyChild::MyChild(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size, const long style):
-wxFrame(frame, -1, title, pos, size, style)
+MyChild::MyChild(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size, const long style)
+ : wxFrame(frame, -1, title, pos, size, style)
{
canvas = NULL;
}
-MyChild::~MyChild(void)
+MyChild::~MyChild()
{
+ if ( IsLastBeforeExit() )
+ PostQuitMessage(0);
}
-void MyChild::OnQuit(wxCommandEvent& event)
+void MyChild::OnQuit(wxCommandEvent& WXUNUSED(event))
{
- Close(TRUE);
+ Close(true);
}
-void MyChild::OnNew(wxCommandEvent& event)
+void MyChild::OnNew(wxCommandEvent& WXUNUSED(event))
{
CMainWindow *mainWin = new CMainWindow();
mainWin->ShowWindow( TRUE );
}
// Dummy MFC window for specifying a valid main window to MFC, using
-// a wxWindows HWND.
-CDummyWindow::CDummyWindow(HWND hWnd):CWnd()
+// a wxWidgets HWND.
+CDummyWindow::CDummyWindow(HWND hWnd)
{
Attach(hWnd);
}
// Don't let the CWnd destructor delete the HWND
-CDummyWindow::~CDummyWindow(void)
+CDummyWindow::~CDummyWindow()
{
Detach();
}
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