I am working with yFiles.Net component which I use for representing dependencies between objects in some SQL database (graph representation).
I need to create tooltip which will appear when I point cursors on some object. That tooltip not contains just text, it contains images also. I know how to make custom class which extends default Tooltip class and then to override methods for drawing custom tooltips.
What i do not know is how to show tooltip when I point on some object on graph, and how to dispose it when I move cursor from object on graph? Can someone help me with this please?
private CustomTooltip m_tooltip;
private MouseHoverInputMode m_mouseHoverMode;
private void SetupToolTips(GraphEditorInputMode mode)
{
m_tooltip = new CustomTooltip(m_model.TooltipImages);
ItemHoverInputMode itemHoverMode = new ItemHoverInputMode();
itemHoverMode.HoverItems = GraphItemTypes.Node | GraphItemTypes.Edge;
mode.ItemHoverInputMode = itemHoverMode;
m_mouseHoverMode = new MouseHoverInputMode(m_tooltip, textProvider);
mode.MouseHoverInputMode = m_mouseHoverMode;
mode.ItemHoverInputMode.HoveredItemChanged += new EventHandler<HoveredItemChangedEventArgs>(ToolTipEvent);
}
private void ToolTipEvent(object sender, HoveredItemChangedEventArgs e)
{
m_tooltip.Item = e.Item;
}
private void textProvider(object sender, ToolTipQueryEventArgs e)
{
if (m_tooltip.Item is INode || m_tooltip.Item is IEdge)
{
e.ToolTip = " ";
}
}
public class CustomTooltip : ToolTip
{
private void OnPopup(object sender, PopupEventArgs e)
{
}
private void OnDraw(object sender, DrawToolTipEventArgs e)
{
}
}