// wxDialog construction
// ----------------------------------------------------------------------------
-wxDialog::wxDialog()
+void wxDialog::Init()
{
m_oldFocus = (wxWindow *)NULL;
+
m_isShown = FALSE;
+ m_windowDisabler = (wxWindowDisabler *)NULL;
+
SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
}
-bool wxDialog::Create(wxWindow *parent, wxWindowID id,
+bool wxDialog::Create(wxWindow *parent,
+ wxWindowID id,
const wxString& title,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
+ Init();
+
m_oldFocus = FindFocus();
- SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
SetName(name);
- if (!parent)
- wxTopLevelWindows.Append(this);
-
- // windowFont = wxTheFontList->FindOrCreateFont(11, wxSWISS, wxNORMAL, wxNORMAL);
+ wxTopLevelWindows.Append(this);
- if (parent) parent->AddChild(this);
+ if ( parent )
+ parent->AddChild(this);
if ( id == -1 )
m_windowId = (int)NewControlId();
m_windowStyle = style;
- m_isShown = FALSE;
-
if (width < 0)
width = wxDIALOG_DEFAULT_WIDTH;
if (height < 0)
if (m_windowStyle & wxSTAY_ON_TOP)
extendedStyle |= WS_EX_TOPMOST;
+#ifndef __WIN16__
+ if (m_exStyle & wxDIALOG_EX_CONTEXTHELP)
+ extendedStyle |= WS_EX_CONTEXTHELP;
+#endif
+
// Allows creation of dialogs with & without captions under MSWindows,
// resizeable or not (but a resizeable dialog always has caption -
// otherwise it would look too strange)
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
+ // this will also reenable all the other windows for a modal dialog
Show(FALSE);
if ( !IsModal() )
// 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();
}
// ----------------------------------------------------------------------------
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();
+ wxWindow* oldFocus = m_oldFocus;
+
+ // 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();
+
// remember where the focus was
- if ( !m_oldFocus )
+ if ( !oldFocus )
{
- m_oldFocus = parent;
- }
- if ( !m_oldFocus )
- {
- m_oldFocus = wxTheApp->GetTopWindow();
+ oldFocus = parent;
+ if ( parent )
+ hwndOldFocus = GetHwndOf(parent);
}
- // disable the parent window first
- HWND hwndParent = parent ? GetHwndOf(parent) : (HWND)NULL;
- if ( hwndParent )
- {
- ::EnableWindow(hwndParent, FALSE);
- }
+ // disable all other app windows
+ wxASSERT_MSG( !m_windowDisabler, _T("disabling windows twice?") );
+
+ m_windowDisabler = new wxWindowDisabler(this);
// enter the modal loop
while ( IsModalShowing() )
wxTheApp->DoMessage();
}
- // reenable the parent window if any
- if ( hwndParent )
- {
- ::EnableWindow(hwndParent, TRUE);
- }
-
// and restore focus
- if ( m_oldFocus && (m_oldFocus != 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))
{
- m_oldFocus->SetFocus();
+ // This is likely to prove that the object still exists
+ if (wxFindWinFromHandle((WXHWND) hwndOldFocus) == oldFocus)
+ oldFocus->SetFocus();
}
}
bool wxDialog::Show(bool 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 )
+ // if we had disabled other app windows, reenable them back now because
+ // if they stay disabled Windows will activate another window (one
+ // which is enabled, anyhow) and we will lose activation
+ if ( m_windowDisabler )
{
- ::BringWindowToTop(GetHwndOf(parent));
+ delete m_windowDisabler;
+ m_windowDisabler = NULL;
}
}
{
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;
+
+ // VZ: to make dialog behave properly we should reparent
+ // the dialog for Windows as well - unfortunately,
+ // following the docs for SetParent() results in this
+ // code which plainly doesn't work
+#if 0
+ long dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
+ dwStyle &= ~WS_POPUP;
+ dwStyle |= WS_CHILD;
+ ::SetWindowLong(GetHwnd(), GWL_STYLE, dwStyle);
+ ::SetParent(GetHwnd(), GetHwndOf(parent));
+#endif // 0
+ }
+ }
+
DoShowModal();
}
else // end of modal dialog
return TRUE;
}
-// 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();
}
switch ( message )
{
+#if 0 // now that we got owner window right it doesn't seem to be needed
+ 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;
+#endif // 0
+
case WM_CLOSE:
// if we can't close, tell the system that we processed the
// message - otherwise it would close us
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 this cursor
- if ( wxIsBusy() )
+ // is shown, but the modal dialog shouldn't have hourglass cursor
+ if ( IsModalShowing() && wxIsBusy() )
{
- rc = TRUE;
+ // 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