+ if ( GetWindowStyle() & wxTB_VERTICAL )
+ {
+ w = r.right - r.left;
+ if ( m_maxRows )
+ {
+ w *= (m_nButtons + m_maxRows - 1)/m_maxRows;
+ }
+ h = HIWORD(lParam);
+ }
+ else
+ {
+ w = LOWORD(lParam);
+ if (HasFlag( wxTB_FLAT ))
+ h = r.bottom - r.top - 3;
+ else
+ h = r.bottom - r.top;
+ if ( m_maxRows )
+ {
+ // FIXME: hardcoded separator line height...
+ h += HasFlag(wxTB_NODIVIDER) ? 4 : 6;
+ h *= m_maxRows;
+ }
+ }
+
+ if ( MAKELPARAM(w, h) != lParam )
+ {
+ // size really changed
+ SetSize(w, h);
+ }
+
+ // message processed
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+bool wxToolBar::HandlePaint(WXWPARAM wParam, WXLPARAM lParam)
+{
+ // erase any dummy separators which we used for aligning the controls if
+ // any here
+
+ // first of all, do we have any controls at all?
+ wxToolBarToolsList::compatibility_iterator node;
+ for ( node = m_tools.GetFirst(); node; node = node->GetNext() )
+ {
+ if ( node->GetData()->IsControl() )
+ break;
+ }
+
+ if ( !node )
+ {
+ // no controls, nothing to erase
+ return FALSE;
+ }
+
+ // prepare the DC on which we'll be drawing
+ wxClientDC dc(this);
+ dc.SetBrush(wxBrush(GetBackgroundColour(), wxSOLID));
+ dc.SetPen(*wxTRANSPARENT_PEN);
+
+ RECT r;
+ if ( !GetUpdateRect(GetHwnd(), &r, FALSE) )
+ {
+ // nothing to redraw anyhow
+ return FALSE;
+ }
+
+ wxRect rectUpdate;
+ wxCopyRECTToRect(r, rectUpdate);
+
+ dc.SetClippingRegion(rectUpdate);
+
+ // draw the toolbar tools, separators &c normally
+ wxControl::MSWWindowProc(WM_PAINT, wParam, lParam);
+
+ // for each control in the toolbar find all the separators intersecting it
+ // and erase them
+ //
+ // NB: this is really the only way to do it as we don't know if a separator
+ // corresponds to a control (i.e. is a dummy one) or a real one
+ // otherwise
+ for ( node = m_tools.GetFirst(); node; node = node->GetNext() )
+ {
+ wxToolBarToolBase *tool = node->GetData();
+ if ( tool->IsControl() )
+ {
+ // get the control rect in our client coords
+ wxControl *control = tool->GetControl();
+ wxRect rectCtrl = control->GetRect();
+
+ // iterate over all buttons
+ TBBUTTON tbb;
+ int count = ::SendMessage(GetHwnd(), TB_BUTTONCOUNT, 0, 0);
+ for ( int n = 0; n < count; n++ )
+ {
+ // is it a separator?
+ if ( !::SendMessage(GetHwnd(), TB_GETBUTTON,
+ n, (LPARAM)&tbb) )
+ {
+ wxLogDebug(_T("TB_GETBUTTON failed?"));
+
+ continue;
+ }
+
+ if ( tbb.fsStyle != TBSTYLE_SEP )
+ continue;
+
+ // get the bounding rect of the separator
+ RECT r;
+ if ( !::SendMessage(GetHwnd(), TB_GETITEMRECT,
+ n, (LPARAM)&r) )
+ {
+ wxLogDebug(_T("TB_GETITEMRECT failed?"));
+
+ continue;
+ }
+
+ // does it intersect the control?
+ wxRect rectItem;
+ wxCopyRECTToRect(r, rectItem);
+ if ( rectCtrl.Intersects(rectItem) )
+ {
+ // yes, do erase it!
+ dc.DrawRectangle(rectItem);
+
+ // Necessary in case we use a no-paint-on-size
+ // style in the parent: the controls can disappear
+ control->Refresh(FALSE);
+ }
+ }
+ }
+ }