+// ----------------------------------------------------------------------------
+// miscellaneous stuff
+// ----------------------------------------------------------------------------
+
+#if wxUSE_HELP
+
+void wxBookCtrlBase::OnHelp(wxHelpEvent& event)
+{
+ // determine where does this even originate from to avoid redirecting it
+ // back to the page which generated it (resulting in an infinite loop)
+
+ // notice that we have to check in the hard(er) way instead of just testing
+ // if the event object == this because the book control can have other
+ // subcontrols inside it (e.g. wxSpinButton in case of a notebook in wxUniv)
+ wxWindow *source = wxStaticCast(event.GetEventObject(), wxWindow);
+ while ( source && source != this && source->GetParent() != this )
+ {
+ source = source->GetParent();
+ }
+
+ if ( source && m_pages.Index(source) == wxNOT_FOUND )
+ {
+ // this event is for the book control itself, redirect it to the
+ // corresponding page
+ wxWindow *page = NULL;
+
+ if ( event.GetOrigin() == wxHelpEvent::Origin_HelpButton )
+ {
+ // show help for the page under the mouse
+ const int pagePos = HitTest(ScreenToClient(event.GetPosition()));
+
+ if ( pagePos != wxNOT_FOUND)
+ {
+ page = GetPage((size_t)pagePos);
+ }
+ }
+ else // event from keyboard or unknown source
+ {
+ // otherwise show the current page help
+ page = GetCurrentPage();
+ }
+
+ if ( page )
+ {
+ // change event object to the page to avoid infinite recursion if
+ // we get this event ourselves if the page doesn't handle it
+ event.SetEventObject(page);
+
+ if ( page->GetEventHandler()->ProcessEvent(event) )
+ {
+ // don't call event.Skip()
+ return;
+ }
+ }
+ }
+ //else: event coming from one of our pages already
+
+ event.Skip();
+}
+
+#endif // wxUSE_HELP
+
+// ----------------------------------------------------------------------------
+// pages management
+// ----------------------------------------------------------------------------
+
+bool
+wxBookCtrlBase::InsertPage(size_t nPage,
+ wxWindow *page,
+ const wxString& WXUNUSED(text),
+ bool WXUNUSED(bSelect),
+ int WXUNUSED(imageId))
+{
+ wxCHECK_MSG( page || AllowNullPage(), false,
+ _T("NULL page in wxBookCtrlBase::InsertPage()") );
+ wxCHECK_MSG( nPage <= m_pages.size(), false,
+ _T("invalid page index in wxBookCtrlBase::InsertPage()") );
+
+ m_pages.Insert(page, nPage);
+ if ( page )
+ page->SetSize(GetPageRect());
+
+ DoInvalidateBestSize();
+
+ return true;
+}
+
+bool wxBookCtrlBase::DeletePage(size_t nPage)
+{
+ wxWindow *page = DoRemovePage(nPage);
+ if ( !(page || AllowNullPage()) )
+ return false;
+
+ // delete NULL is harmless
+ delete page;
+
+ return true;
+}
+
+wxWindow *wxBookCtrlBase::DoRemovePage(size_t nPage)
+{
+ wxCHECK_MSG( nPage < m_pages.size(), NULL,
+ _T("invalid page index in wxBookCtrlBase::DoRemovePage()") );
+
+ wxWindow *pageRemoved = m_pages[nPage];
+ m_pages.RemoveAt(nPage);
+ DoInvalidateBestSize();
+
+ return pageRemoved;
+}
+
+int wxBookCtrlBase::GetNextPage(bool forward) const
+{
+ int nPage;
+
+ int nMax = GetPageCount();
+ if ( nMax-- ) // decrement it to get the last valid index
+ {
+ int nSel = GetSelection();
+
+ // change selection wrapping if it becomes invalid
+ nPage = forward ? nSel == nMax ? 0
+ : nSel + 1
+ : nSel == 0 ? nMax
+ : nSel - 1;
+ }
+ else // notebook is empty, no next page
+ {
+ nPage = wxNOT_FOUND;
+ }
+
+ return nPage;
+}
+
+int wxBookCtrlBase::DoSetSelection(size_t n, int flags)
+{
+ wxCHECK_MSG( n < GetPageCount(), wxNOT_FOUND,
+ wxT("invalid page index in wxBookCtrlBase::DoSetSelection()") );
+
+ const int oldSel = GetSelection();
+
+ if ( n != (size_t)oldSel )
+ {
+ wxBookCtrlBaseEvent *event = CreatePageChangingEvent();
+ bool allowed = false;
+
+ if ( flags & SetSelection_SendEvent )
+ {
+ event->SetSelection(n);
+ event->SetOldSelection(oldSel);
+ event->SetEventObject(this);
+
+ allowed = !GetEventHandler()->ProcessEvent(*event) || event->IsAllowed();
+ }
+
+ if ( !(flags & SetSelection_SendEvent) || allowed)
+ {
+ if ( oldSel != wxNOT_FOUND )
+ m_pages[oldSel]->Hide();
+
+ wxWindow *page = m_pages[n];
+ page->SetSize(GetPageRect());
+ page->Show();
+
+ // change selection now to ignore the selection change event
+ UpdateSelectedPage(n);
+
+ if ( flags & SetSelection_SendEvent )
+ {
+ // program allows the page change
+ MakeChangedEvent(*event);
+ (void)GetEventHandler()->ProcessEvent(*event);
+ }
+ }
+
+ delete event;
+ }
+
+ return oldSel;
+}
+
+
projects / wxWidgets.git / blobdiff