public virtual bool associateImage(ImageWindow w)
{
if (w == null)
{
if (image == null)
return true;
w = image;
if (!w.associateNode(null))
return false;
image = null;
}
else
{
if (image != null)
return false;
if (!w.associateNode(this))
return false;
image = w;
}
if (title != null && image != null)
image.Text = title;
return true;
}
public DisplayNode(NodeDefinition nd, Network net, int instnc)
: base(nd, net, instnc)
{
xpos = ypos = Utils.UnspecifiedPosition;
width = height = Utils.UnspecifiedDimension;
image = null;
// It's makes no sense to even think about creating an image window
// for a Display node in a macro.
userSpecifiedWhere = net.IsMacro;
title = null;
panelAccessManager = null;
}
public override bool associateImage(ImageWindow w)
{
bool result = base.associateImage(w);
if (result && w != null)
w.allowDirectInteraction(false);
return result;
}
/// <summary>
/// Monitor the status of the WHERE param. If the tab is connected, then
/// treat it as if the user had supplied a value.
/// </summary>
/// <param name="input"></param>
/// <param name="index"></param>
/// <param name="status"></param>
protected override void ioParameterStatusChanged(bool input, int index, Node.NodeParameterStatusChange status)
{
// If Where is wired up, then treat it the way we treat a user supplied window.
// This handles wiring, unwiring, and unsetting. The case of setting (thru
// the cdb) is handled in this->setInputValue(). DisplayNodes still cling
// tenaciously to their ImageWindows. If you run the net and dxui provides
// an ImageWindow for the DisplayNode, you won't be able to flip the Where
// param tab up and so dxui will always provide the ImageWindow and the only
// way to get around that is to delete the DisplayNode and place a new one.
if ((input) && (index == WHERE))
{
if (status == NodeParameterStatusChange.ParameterArkAdded)
{
this.userSpecifiedWhere = true;
if (this.image != null)
{
ImageWindow iw = this.image;
this.image = null;
if (iw.IsAnchor == false)
iw = null;
}
}
// Flipping the param tab up, might be considered a way to indicate
// that userSpecifiedWhere should be reset to FALSE. This was not
// the behavior in 3.1.2.
// Set network dirty because changing userSpecifiedWhere requires
// a call to DisplayNode::prepareToSend.
//
else if (status == NodeParameterStatusChange.ParameterArkRemoved)
{
this.userSpecifiedWhere = false;
}
else if (status == NodeParameterStatusChange.ParameterSetValueToDefaulting)
{
this.userSpecifiedWhere = false;
this.getNetwork().setDirty();
}
}
base.ioParameterStatusChanged(input, index, status);
}