wxDialog::wxDialog()
{
+ m_oldFocus = (wxWindow *)NULL;
m_isShown = FALSE;
SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
long style,
const wxString& name)
{
+ m_oldFocus = FindFocus();
+
SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
SetName(name);
- if (!parent)
- wxTopLevelWindows.Append(this);
+ wxTopLevelWindows.Append(this);
// windowFont = wxTheFontList->FindOrCreateFont(11, wxSWISS, wxNORMAL, wxNORMAL);
if ( !hwnd )
{
- wxLogError(_("Failed to create dialog."));
+ wxFAIL_MSG(_("Failed to create dialog. You probably forgot to include wx/msw/wx.rc in your resources."));
return FALSE;
}
wxTopLevelWindows.DeleteObject(this);
+ // this will call BringWindowToTop() if necessary to bring back our parent
+ // window to top
Show(FALSE);
- // VZ: this is bogus and breaks focus handling - it won't be returned to
- // the window which had it previosuly if we do this
-#if 0
- if (m_modalShowing)
- {
- // For some reason, wxWindows can activate another task altogether
- // when a frame is destroyed after a modal dialog has been invoked.
- // Try to bring the parent to the top.
- // dfgg: I moved this following line from end of function -
- // must not call if another window is on top!!
- // This can often happen with Close() and delayed deleting
- if (GetParent() && GetParent()->GetHWND())
- ::BringWindowToTop((HWND) GetParent()->GetHWND());
- }
-
- m_modalShowing = FALSE;
-#endif // 0
-
if ( !IsModal() )
wxModelessWindows.DeleteObject(this);
// By default, pressing escape cancels the dialog
void wxDialog::OnCharHook(wxKeyEvent& event)
{
- if (GetHWND())
- {
- if (event.m_keyCode == WXK_ESCAPE)
+ if (GetHWND())
{
- // Behaviour changed in 2.0: we'll send a Cancel message
- // to the dialog instead of Close.
- wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
- cancelEvent.SetEventObject( this );
- GetEventHandler()->ProcessEvent(cancelEvent);
-
- // ensure that there is another message for this window so the
- // ShowModal loop will exit and won't get stuck in GetMessage().
- ::PostMessage(GetHwnd(), WM_NULL, 0, 0);
- return;
+ // "Esc" works as an accelerator for the "Cancel" button, but it
+ // shouldn't close the dialog which doesn't have any cancel button
+ if ( (event.m_keyCode == WXK_ESCAPE) && FindWindow(wxID_CANCEL) )
+ {
+ wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
+ cancelEvent.SetEventObject( this );
+ GetEventHandler()->ProcessEvent(cancelEvent);
+
+ // ensure that there is another message for this window so the
+ // ShowModal loop will exit and won't get stuck in GetMessage().
+ ::PostMessage(GetHwnd(), WM_NULL, 0, 0);
+
+ return;
+ }
}
- }
- // We didn't process this event.
- event.Skip();
+
+ // We didn't process this event.
+ event.Skip();
}
// ----------------------------------------------------------------------------
return (GetWindowStyleFlag() & wxDIALOG_MODAL) != 0;
}
-// VZ: this is the old version unchanged (reindented only), it will be removed
-// as soon as we're sure the new one works correctly
-#if 0
-
-bool wxDialog::Show(bool show)
-{
- m_isShown = show;
-
- if (show)
- InitDialog();
-
- bool modal = IsModal();
-
- if (modal)
- {
- if (show)
- {
- // find the top level window which had focus before - we will restore
- // focus to it later
- m_hwndOldFocus = 0;
- for ( HWND hwnd = ::GetFocus(); hwnd; hwnd = ::GetParent(hwnd) )
- {
- m_hwndOldFocus = (WXHWND)hwnd;
- }
-
- if (m_modalShowing)
- {
- BringWindowToTop((HWND) GetHWND());
- return TRUE;
- }
-
- m_modalShowing = TRUE;
- wxNode *node = wxModalDialogs.First();
- while (node)
- {
- wxDialog *box = (wxDialog *)node->Data();
- if (box != this)
- ::EnableWindow((HWND) box->GetHWND(), FALSE);
- node = node->Next();
- }
-
- // if we don't do it, some window might be deleted while we have pointers
- // to them in our disabledWindows list and the program will crash when it
- // will try to reenable them after the modal dialog end
- wxTheApp->DeletePendingObjects();
- wxList disabledWindows;
-
- node = wxModelessWindows.First();
- while (node)
- {
- wxWindow *win = (wxWindow *)node->Data();
- if (::IsWindowEnabled((HWND) win->GetHWND()))
- {
- ::EnableWindow((HWND) win->GetHWND(), FALSE);
- disabledWindows.Append(win);
- }
- node = node->Next();
- }
-
- ShowWindow((HWND) GetHWND(), SW_SHOW);
- EnableWindow((HWND) GetHWND(), TRUE);
- BringWindowToTop((HWND) GetHWND());
-
- if ( !wxModalDialogs.Find(this) )
- wxModalDialogs.Append(this);
-
- MSG msg;
- // Must test whether this dialog still exists: we may not process
- // a message before the deletion.
- while (wxModalDialogs.Find(this) && m_modalShowing && GetMessage(&msg, NULL, 0, 0))
- {
- if ( m_acceleratorTable.Ok() &&
- ::TranslateAccelerator((HWND)GetHWND(),
- (HACCEL)m_acceleratorTable.GetHACCEL(),
- &msg) )
- {
- // Have processed the message
- }
- else if ( !wxTheApp->ProcessMessage((WXMSG *)&msg) )
- {
- TranslateMessage(&msg);
- DispatchMessage(&msg);
- }
-
- // If we get crashes (as per George Tasker's message) with nested modal dialogs,
- // we should try removing the m_modalShowing test
-
- if (m_modalShowing && !::PeekMessage(&msg, 0, 0, 0, PM_NOREMOVE))
- // dfgg: NB MUST test m_modalShowing again as the message loop could have triggered
- // a Show(FALSE) in the mean time!!!
- // Without the test, we might delete the dialog before the end of modal showing.
- {
- while (wxTheApp->ProcessIdle() && m_modalShowing)
- {
- // Keep going until we decide we've done enough
- }
- }
- }
- // dfgg: now must specifically re-enable all other app windows that we disabled earlier
- node=disabledWindows.First();
- while(node) {
- wxWindow* win = (wxWindow*) node->Data();
- if (wxModalDialogs.Find(win) || wxModelessWindows.Find(win))
- {
- HWND hWnd = (HWND) win->GetHWND();
- if (::IsWindow(hWnd))
- ::EnableWindow(hWnd,TRUE);
- }
- node=node->Next();
- }
- }
- else // !show
- {
- ::SetFocus((HWND)m_hwndOldFocus);
-
- wxModalDialogs.DeleteObject(this);
-
- wxNode *last = wxModalDialogs.Last();
-
- // If there's still a modal dialog active, we
- // enable it, else we enable all modeless windows
- if (last)
- {
- // VZ: I don't understand what this is supposed to do, so I'll leave
- // it out for now and look for horrible consequences
- wxDialog *box = (wxDialog *)last->Data();
- HWND hwnd = (HWND) box->GetHWND();
-#if 0
- if (box->IsUserEnabled())
-#endif // 0
- EnableWindow(hwnd, TRUE);
- BringWindowToTop(hwnd);
- }
- else
- {
- wxNode *node = wxModelessWindows.First();
- while (node)
- {
- wxWindow *win = (wxWindow *)node->Data();
- HWND hwnd = (HWND) win->GetHWND();
- // Only enable again if not user-disabled.
-#if 0
- if (win->IsUserEnabled())
-#endif // 0
- EnableWindow(hwnd, TRUE);
- node = node->Next();
- }
- }
- // Try to highlight the correct window (the parent)
- HWND hWndParent = 0;
- if (GetParent())
- {
- hWndParent = (HWND) GetParent()->GetHWND();
- if (hWndParent)
- ::BringWindowToTop(hWndParent);
- }
- ShowWindow((HWND) GetHWND(), SW_HIDE);
- m_modalShowing = FALSE;
- }
- }
- else // !modal
- {
- if (show)
- {
- ShowWindow((HWND) GetHWND(), SW_SHOW);
- BringWindowToTop((HWND) GetHWND());
- }
- else
- {
- // Try to highlight the correct window (the parent)
- HWND hWndParent = 0;
- if (GetParent())
- {
- hWndParent = (HWND) GetParent()->GetHWND();
- if (hWndParent)
- ::BringWindowToTop(hWndParent);
- }
-
- if ( m_hWnd )
- ShowWindow((HWND) GetHWND(), SW_HIDE);
- }
- }
-
- return TRUE;
-}
-
-#else // 1
-
bool wxDialog::IsModalShowing() const
{
return wxModalDialogs.Find((wxDialog *)this) != NULL; // const_cast
void wxDialog::DoShowModal()
{
wxCHECK_RET( !IsModalShowing(), _T("DoShowModal() called twice") );
+ wxCHECK_RET( IsModal(), _T("can't DoShowModal() modeless dialog") );
wxModalDialogs.Append(this);
wxWindow *parent = GetParent();
- // remember where the focus was
- wxWindow *winFocus = FindFocus();
- if ( !winFocus )
- {
- winFocus = parent;
- }
- if ( !winFocus )
- {
- winFocus = wxTheApp->GetTopWindow();
- }
+ wxWindow* oldFocus = m_oldFocus;
- // disable the parent window first
- HWND hwndParent = parent ? GetHwndOf(parent) : (HWND)NULL;
- if ( hwndParent )
- {
- ::EnableWindow(hwndParent, FALSE);
- }
+ // We have to remember the HWND because we need to check
+ // the HWND still exists (oldFocus can be garbage when the dialog
+ // exits, if it has been destroyed)
+ HWND hwndOldFocus = 0;
+ if (oldFocus)
+ hwndOldFocus = (HWND) oldFocus->GetHWND();
- // enter the modal loop
- while ( IsModalShowing() )
+ // inside this block, all app windows are disabled
{
+ wxWindowDisabler wd(this);
+
+ // remember where the focus was
+ if ( !oldFocus )
+ {
+ oldFocus = parent;
+ if (parent)
+ hwndOldFocus = (HWND) parent->GetHWND();
+ }
+
+ // enter the modal loop
+ while ( IsModalShowing() )
+ {
#if wxUSE_THREADS
- wxMutexGuiLeaveOrEnter();
+ wxMutexGuiLeaveOrEnter();
#endif // wxUSE_THREADS
- while ( !wxTheApp->Pending() && wxTheApp->ProcessIdle() )
- ;
+ while ( !wxTheApp->Pending() && wxTheApp->ProcessIdle() )
+ ;
- // a message came or no more idle processing to do
- wxTheApp->DoMessage();
+ // a message came or no more idle processing to do
+ wxTheApp->DoMessage();
+ }
}
- // reenable the parent window if any
- if ( hwndParent )
- {
- ::EnableWindow(hwndParent, TRUE);
- }
+#ifdef __WIN32__
+ if ( parent )
+ ::SetActiveWindow(GetHwndOf(parent));
+#endif // __WIN32__
// and restore focus
- if ( winFocus && (winFocus != this) )
+ // Note that this code MUST NOT access the dialog object's data
+ // in case the object has been deleted (which will be the case
+ // for a modal dialog that has been destroyed before calling EndModal).
+ if ( oldFocus && (oldFocus != this) && ::IsWindow(hwndOldFocus))
{
- winFocus->SetFocus();
+ // This is likely to prove that the object still exists
+ if (wxFindWinFromHandle((WXHWND) hwndOldFocus) == oldFocus)
+ oldFocus->SetFocus();
}
}
bool wxDialog::Show(bool show)
{
- if ( !wxDialogBase::Show(show) )
+ // The following is required when the parent has been disabled, (modal
+ // dialogs, or modeless dialogs with disabling such as wxProgressDialog).
+ // Otherwise the parent disappears behind other windows when the dialog is
+ // hidden.
+ if ( !show )
+ {
+ wxWindow *parent = GetParent();
+ if ( parent )
+ {
+ ::BringWindowToTop(GetHwndOf(parent));
+ }
+ }
+
+ // ShowModal() may be called for already shown dialog
+ if ( !wxDialogBase::Show(show) && !(show && IsModal()) )
{
// nothing to do
return FALSE;
{
if ( show )
{
+ // modal dialog needs a parent window, so try to find one
+ if ( !GetParent() )
+ {
+ wxWindow *parent = wxTheApp->GetTopWindow();
+ if ( parent && parent != this && parent->IsShown() )
+ {
+ // use it
+ m_parent = parent;
+ }
+ }
+
DoShowModal();
}
else // end of modal dialog
return TRUE;
}
-#endif // 0/1
-
-// Replacement for Show(TRUE) for modal dialogs - returns return code
+// a special version for Show(TRUE) for modal dialogs which returns return code
int wxDialog::ShowModal()
{
- m_windowStyle |= wxDIALOG_MODAL;
+ if ( !IsModal() )
+ {
+ SetModal(TRUE);
+ }
+
Show(TRUE);
+
return GetReturnCode();
}
void wxDialog::EndModal(int retCode)
{
SetReturnCode(retCode);
+
Show(FALSE);
}
switch ( message )
{
+ case WM_ACTIVATE:
+ switch ( LOWORD(wParam) )
+ {
+ case WA_ACTIVE:
+ case WA_CLICKACTIVE:
+ if ( IsModalShowing() && GetParent() )
+ {
+ // bring the owner window to top as the standard dialog
+ // boxes do
+ if ( !::SetWindowPos
+ (
+ GetHwndOf(GetParent()),
+ GetHwnd(),
+ 0, 0,
+ 0, 0,
+ SWP_NOACTIVATE |
+ SWP_NOMOVE |
+ SWP_NOSIZE
+ ) )
+ {
+ wxLogLastError(wxT("SetWindowPos(SWP_NOACTIVATE)"));
+ }
+ }
+ // fall through to process it normally as well
+ }
+ break;
+
case WM_CLOSE:
// if we can't close, tell the system that we processed the
// message - otherwise it would close us
processed = !Close();
break;
+
+ case WM_SETCURSOR:
+ // we want to override the busy cursor for modal dialogs:
+ // typically, wxBeginBusyCursor() is called and then a modal dialog
+ // is shown, but the modal dialog shouldn't have hourglass cursor
+ if ( IsModalShowing() && wxIsBusy() )
+ {
+ // set our cursor for all windows (but see below)
+ wxCursor cursor = m_cursor;
+ if ( !cursor.Ok() )
+ cursor = wxCURSOR_ARROW;
+
+ ::SetCursor(GetHcursorOf(cursor));
+
+ // in any case, stop here and don't let wxWindow process this
+ // message (it would set the busy cursor)
+ processed = TRUE;
+
+ // but return FALSE to tell the child window (if the event
+ // comes from one of them and not from ourselves) that it can
+ // set its own cursor if it has one: thus, standard controls
+ // (e.g. text ctrl) still have correct cursors in a dialog
+ // invoked while wxIsBusy()
+ rc = FALSE;
+ }
+ break;
}
if ( !processed )
projects / wxWidgets.git / blobdiff