Minor cleanup.

[wxWidgets.git] / src / common / dlgcmn.cpp

diff --git a/src/common/dlgcmn.cpp b/src/common/dlgcmn.cpp
index b25ccf532cb77a8d40aea1c2d9be20d68600e8a9..dd09b3a3220cab915edf19c82135900d483ee94d 100644 (file)
--- a/src/common/dlgcmn.cpp
+++ b/src/common/dlgcmn.cpp
@@ -99,6 +99,12 @@ private:
 // ----------------------------------------------------------------------------
 
 BEGIN_EVENT_TABLE(wxDialogBase, wxTopLevelWindow)
+    EVT_BUTTON(wxID_ANY, wxDialogBase::OnButton)
+
+    EVT_CLOSE(wxDialogBase::OnCloseWindow)
+
+    EVT_CHAR_HOOK(wxDialogBase::OnCharHook)
+
     WX_EVENT_TABLE_CONTROL_CONTAINER(wxDialogBase)
 END_EVENT_TABLE()
 
@@ -417,3 +423,153 @@ wxStdDialogButtonSizer *wxDialogBase::CreateStdDialogButtonSizer( long flags )
 }
 
 #endif // wxUSE_BUTTON
+
+// ----------------------------------------------------------------------------
+// standard buttons handling
+// ----------------------------------------------------------------------------
+
+void wxDialogBase::EndDialog(int rc)
+{
+    if ( IsModal() )
+        EndModal(rc);
+    else
+        Hide();
+}
+
+void wxDialogBase::AcceptAndClose()
+{
+    if ( Validate() && TransferDataFromWindow() )
+    {
+        EndDialog(m_affirmativeId);
+    }
+}
+
+void wxDialogBase::SetAffirmativeId(int affirmativeId)
+{
+    m_affirmativeId = affirmativeId;
+}
+
+void wxDialogBase::SetEscapeId(int escapeId)
+{
+    m_escapeId = escapeId;
+}
+
+bool wxDialogBase::EmulateButtonClickIfPresent(int id)
+{
+#if wxUSE_BUTTON
+    wxButton *btn = wxDynamicCast(FindWindow(id), wxButton);
+
+    if ( !btn || !btn->IsEnabled() || !btn->IsShown() )
+        return false;
+
+    wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, id);
+    event.SetEventObject(btn);
+    btn->GetEventHandler()->ProcessEvent(event);
+
+    return true;
+#else // !wxUSE_BUTTON
+    wxUnusedVar(id);
+    return false;
+#endif // wxUSE_BUTTON/!wxUSE_BUTTON
+}
+
+bool wxDialogBase::IsEscapeKey(const wxKeyEvent& event)
+{
+    // for most platforms, Esc key is used to close the dialogs
+    return event.GetKeyCode() == WXK_ESCAPE &&
+                event.GetModifiers() == wxMOD_NONE;
+}
+
+void wxDialogBase::OnCharHook(wxKeyEvent& event)
+{
+    if ( event.GetKeyCode() == WXK_ESCAPE )
+    {
+        int idCancel = GetEscapeId();
+        switch ( idCancel )
+        {
+            case wxID_NONE:
+                // don't handle Esc specially at all
+                break;
+
+            case wxID_ANY:
+                // this value is special: it means translate Esc to wxID_CANCEL
+                // but if there is no such button, then fall back to wxID_OK
+                if ( EmulateButtonClickIfPresent(wxID_CANCEL) )
+                    return;
+                idCancel = GetAffirmativeId();
+                // fall through
+
+            default:
+                // translate Esc to button press for the button with given id
+                if ( EmulateButtonClickIfPresent(idCancel) )
+                    return;
+        }
+    }
+
+    event.Skip();
+}
+
+void wxDialogBase::OnButton(wxCommandEvent& event)
+{
+    const int id = event.GetId();
+    if ( id == GetAffirmativeId() )
+    {
+        AcceptAndClose();
+    }
+    else if ( id == wxID_APPLY )
+    {
+        if ( Validate() )
+            TransferDataFromWindow();
+
+        // TODO: disable the Apply button until things change again
+    }
+    else if ( id == GetEscapeId() ||
+                (id == wxID_CANCEL && GetEscapeId() == wxID_ANY) )
+    {
+        EndDialog(wxID_CANCEL);
+    }
+    else // not a standard button
+    {
+        event.Skip();
+    }
+}
+
+// ----------------------------------------------------------------------------
+// other event handlers
+// ----------------------------------------------------------------------------
+
+void wxDialogBase::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
+{
+    // We'll send a Cancel message by default, which may close the dialog.
+    // Check for looping if the Cancel event handler calls Close().
+
+    // Note that if a cancel button and handler aren't present in the dialog,
+    // nothing will happen when you close the dialog via the window manager, or
+    // via Close(). We wouldn't want to destroy the dialog by default, since
+    // the dialog may have been created on the stack. However, this does mean
+    // that calling dialog->Close() won't delete the dialog unless the handler
+    // for wxID_CANCEL does so. So use Destroy() if you want to be sure to
+    // destroy the dialog. The default OnCancel (above) simply ends a modal
+    // dialog, and hides a modeless dialog.
+
+    // VZ: this is horrible and MT-unsafe. Can't we reuse some of these global
+    //     lists here? don't dare to change it now, but should be done later!
+    static wxList closing;
+
+    if ( closing.Member(this) )
+        return;
+
+    closing.Append(this);
+
+    wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
+    cancelEvent.SetEventObject( this );
+    GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog
+
+    closing.DeleteObject(this);
+}
+
+void wxDialogBase::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event))
+{
+  SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
+  Refresh();
+}