Hi All
When I'm saving the layout of my docking panes I want to filter out unwanted panes so that they don't get modified when I do a restore later on. In the following code snippet I'm attempting to do this. I'm creating a new pane layout object, removing the docking panes I don't want from the pane list, and then doing a property exchange on that.
CXTPPropExchangeSection pxDockingPane(pPX->GetSection(_T("DockingPane")));
if (!pPX->IsLoading ())
{
CXTPDockingPaneLayout *pLayout = m_paneManager.CreateLayout ();
m_paneManager.GetLayout (pLayout);
if (pLayout)
{
std::set<int> idSet;
idSet.insert (ID_PANE_1);
idSet.insert (ID_PANE_2);
idSet.insert (ID_PANE_3);
// Remove unwanted panes before exchange.
CXTPDockingPaneInfoList cache;
CXTPDockingPaneInfoList &paneList = pLayout->GetPaneList ();
POSITION pos = paneList.GetTailPosition();
while (pos)
{
CXTPDockingPane* pPane = paneList.GetAt (pos);
if (idSet.find (pPane->GetID ()) != idSet.end ())
{
cache.AddTail (paneList.GetAt (pos));
paneList.RemoveAt (pos);
}
paneList.GetPrev (pos);
}
pLayout->DoPropExchange (&pxDockingPane);
delete pLayout;
}
}
And here is the generated layout…
<Settings CompactMode="1">
<CustomLayout>
<DockingPane>
<Summary Panes="21" TopContainer="4" Client="9"/>
<Pane-1 Type="0" DockingCX="220" DockingCY="150" Title="Forms\n" ID="40" DockingHolder="7" LastHolder="7" MinTrackX="100" MinTrackY="100"/>
<Pane-2 Type="0" DockingCX="200" DockingCY="120" Title="MyApplication:2\n\n" ID="501" Options="16" DockingHolder="10" FloatingHolder="13" LastHolder="13"/>
<Pane-3 Type="5" Direction="0" Panes="0"/>
<Pane-4 Type="2" Panes="1" Pane-1="5"/>
<Pane-5 Type="2" DockingCX="1280" DockingCY="723" Horiz="1" Panes="2" Pane-1="6" Pane-2="8"/>
<Pane-6 Type="2" DockingCX="223" DockingCY="876" Panes="1" Pane-1="7"/>
<Pane-7 Type="1" DockingCX="220" DockingCY="494" Panes="3" Pane-1="0" Pane-2="0" Pane-3="0"/>
<Pane-8 Type="2" DockingCX="1178" Panes="2" Pane-1="9" Pane-2="10"/>
<Pane-9 Type="4"/>
<Pane-10 Type="1" DockingCX="200" DockingCY="120" Panes="0"/>
<Pane-11 Type="3" WindowRectTopPos="49" WindowRectBottomPos="429" WindowRectLeftPos="775" WindowRectRightPos="1359" TopContaner="12"/>
<Pane-12 Type="2" DockingCX="200" DockingCY="120" Horiz="1" Panes="1" Pane-1="13"/>
<Pane-13 Type="1" DockingCX="200" DockingCY="120" Panes="1" Selected="2" Pane-1="2"/>
</DockingPane>
</CustomLayout>
</Settings>
All good so far. So now for my problem.
Loading the saved layout crashes. I think that it's because <Summary Panes="21" TopContainer="4" Client="9"/> is wrong (it is still referring to the original number of panes before I removed some of them). Unfortunately that value is retrieved from a private member in the CXTPDockingPaneLayout class so I can't change it. I guess I could just change the XML but that seems pretty hacky.
Any thoughts / ideas? Ideally I'd like to override CXTPDockingPaneLayout::_Save but obviously that has been abstracted away for good reasons.
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