WorksheetContextMenuManager_RequestVertexCommandEnable
(
Object sender,
RequestVertexCommandEnableEventArgs e
)
{
AssertValid();
// Get the vertex corresponding to the row the user right-clicked in
// the vertex worksheet. This can be null.
IVertex oClickedVertex =
WorksheetContextMenuManagerRowIDToVertex(e.VertexRowID);
Boolean bEnableSelectAllVertices, bEnableDeselectAllVertices,
bEnableSelectAdjacentVertices, bEnableDeselectAdjacentVertices,
bEnableSelectIncidentEdges, bEnableDeselectIncidentEdges,
bEnableEditVertexAttributes, bEnableSelectSubgraphs;
GetVertexCommandEnableFlags(oClickedVertex,
out bEnableSelectAllVertices,
out bEnableDeselectAllVertices,
out bEnableSelectAdjacentVertices,
out bEnableDeselectAdjacentVertices,
out bEnableSelectIncidentEdges,
out bEnableDeselectIncidentEdges,
out bEnableEditVertexAttributes,
out bEnableSelectSubgraphs
);
e.EnableSelectAllVertices = bEnableSelectAllVertices;
e.EnableDeselectAllVertices = bEnableDeselectAllVertices;
e.EnableSelectAdjacentVertices = bEnableSelectAdjacentVertices;
e.EnableDeselectAdjacentVertices = bEnableDeselectAdjacentVertices;
e.EnableSelectIncidentEdges = bEnableSelectIncidentEdges;
e.EnableDeselectIncidentEdges = bEnableDeselectIncidentEdges;
e.EnableEditVertexAttributes = bEnableEditVertexAttributes;
e.EnableSelectSubgraphs = bEnableSelectSubgraphs;
}
AddVertexContextMenuItems
(
Microsoft.Office.Interop.Excel.Range oClickedRange
)
{
Debug.Assert(oClickedRange != null);
AssertValid();
Int32 iClickedVertexID;
CommandBarPopup oTopLevelPopup;
// Add a top-level NodeXL popup menu item.
PrepareToAddChildMenuItems(oClickedRange, m_oVertexTable,
CommonTableColumnNames.ID, out iClickedVertexID,
out oTopLevelPopup);
// Add child menu items.
CommandBarButton oSelectAllVerticesButton = AddContextMenuItem(
oTopLevelPopup, "Select &All Vertices", iClickedVertexID,
new _CommandBarButtonEvents_ClickEventHandler(
oSelectAllVerticesButton_Click) );
CommandBarButton oDeselectAllVerticesButton = AddContextMenuItem(
oTopLevelPopup, "&Deselect All Vertices", iClickedVertexID,
new _CommandBarButtonEvents_ClickEventHandler(
oDeselectAllVerticesButton_Click) );
CommandBarButton oSelectAdjacentVerticesOfVertexButton =
AddContextMenuItem(oTopLevelPopup, "Select Ad&jacent Vertices",
iClickedVertexID,
new _CommandBarButtonEvents_ClickEventHandler(
oSelectAdjacentVerticesOfVertexButton_Click) );
CommandBarButton oDeselectAdjacentVerticesOfVertexButton =
AddContextMenuItem(oTopLevelPopup, "Deselect Adjace&nt Vertices",
iClickedVertexID,
new _CommandBarButtonEvents_ClickEventHandler(
oDeselectAdjacentVerticesOfVertexButton_Click) );
CommandBarButton oSelectIncidentEdgesButton = AddContextMenuItem(
oTopLevelPopup, "Select &Incident Edges", iClickedVertexID,
new _CommandBarButtonEvents_ClickEventHandler(
oSelectIncidentEdgesButton_Click) );
CommandBarButton oDeselectIncidentEdgesButton = AddContextMenuItem(
oTopLevelPopup, "Deselec&t Incident Edges", iClickedVertexID,
new _CommandBarButtonEvents_ClickEventHandler(
oDeselectIncidentEdgesButton_Click) );
CommandBarButton oSelectSubgraphsButton = AddContextMenuItem(
oTopLevelPopup, "Select S&ubgraphs...", iClickedVertexID,
new _CommandBarButtonEvents_ClickEventHandler(
oSelectSubgraphsButton_Click) );
CommandBarButton oEditVertexAttributesButton = AddContextMenuItem(
oTopLevelPopup, "&Edit Selected Vertex Properties...",
iClickedVertexID,
new _CommandBarButtonEvents_ClickEventHandler(
oEditVertexAttributesButton_Click) );
oEditVertexAttributesButton.BeginGroup = true;
// The custom menu items are disabled by default. To enable them, the
// RequestVertexCommandEnable event must be handled.
RequestVertexCommandEnableEventHandler oRequestVertexCommandEnable =
this.RequestVertexCommandEnable;
if (oRequestVertexCommandEnable == null)
{
return;
}
RequestVertexCommandEnableEventArgs oEventArgs =
new RequestVertexCommandEnableEventArgs(iClickedVertexID);
oRequestVertexCommandEnable(this, oEventArgs);
oSelectAllVerticesButton.Enabled = oEventArgs.EnableSelectAllVertices;
oDeselectAllVerticesButton.Enabled =
oEventArgs.EnableDeselectAllVertices;
oSelectAdjacentVerticesOfVertexButton.Enabled =
oEventArgs.EnableSelectAdjacentVertices;
oDeselectAdjacentVerticesOfVertexButton.Enabled =
oEventArgs.EnableDeselectAdjacentVertices;
oSelectIncidentEdgesButton.Enabled =
oEventArgs.EnableSelectIncidentEdges;
oDeselectIncidentEdgesButton.Enabled =
oEventArgs.EnableDeselectIncidentEdges;
oEditVertexAttributesButton.Enabled =
oEventArgs.EnableEditVertexAttributes;
oSelectSubgraphsButton.Enabled = oEventArgs.EnableSelectSubgraphs;
// Add a "set color" menu item if the clicked range is a color cell.
AddSetColorContextMenuItem(m_oVertexTable, oClickedRange,
VertexTableColumnNames.Color,
VertexTableColumnNames.LabelFillColor);
}