private DataSet GetDataSet()
{
ImageTargetBehaviour itb = GetImageTarget();
if (itb == null)
{
Debug.LogError("Virtual Button is not part of a data set.");
return(null);
}
DataSet container = null;
ImageTracker imageTracker = (ImageTracker)
TrackerManager.Instance.GetTracker(Tracker.Type.IMAGE_TRACKER);
if (imageTracker != null)
{
int numDataSets = imageTracker.GetNumDataSets();
for (int i = 0; i < numDataSets; ++i)
{
DataSet dataSet = imageTracker.GetDataSet(i);
if (itb.References(dataSet))
{
container = dataSet;
}
}
}
return(container);
}
// This methods adds the Virtual Button as a child of "immediateParent".
// Returns null if "immediateParent" is not an Image Target or a child of an
// Image Target.
public static VirtualButtonBehaviour CreateVirtualButton(string vbName,
Vector2 localScale,
GameObject immediateParent)
{
GameObject virtualButtonObject = new GameObject(vbName);
VirtualButtonBehaviour newVBB =
virtualButtonObject.AddComponent <VirtualButtonBehaviour>();
GameObject rootParent = immediateParent.transform.root.gameObject;
ImageTargetBehaviour parentImageTarget =
rootParent.GetComponentInChildren <ImageTargetBehaviour>();
if (parentImageTarget == null)
{
Debug.LogError("Could not create Virtual Button. " +
"immediateParent\"immediateParent\" object is not " +
"an Image Target or a child of one.");
GameObject.Destroy(virtualButtonObject);
return(null);
}
// Add Virtual Button to its parent game object
virtualButtonObject.transform.parent = immediateParent.transform;
// Set Virtual Button attributes
newVBB.InitializeName(vbName);
newVBB.transform.localScale = new Vector3(localScale[0], 1.0f, localScale[1]);
ImageTracker imageTracker = (ImageTracker)
TrackerManager.Instance.GetTracker(Tracker.Type.IMAGE_TRACKER);
int numDataSets = imageTracker.GetNumDataSets();
bool registerSuccess = false;
for (int i = 0; i < numDataSets; ++i)
{
DataSet dataSet = imageTracker.GetDataSet(i);
if (parentImageTarget.References(dataSet))
{
registerSuccess = dataSet.RegisterVirtualButton(newVBB,
parentImageTarget.TrackableName);
}
}
if (!registerSuccess)
{
Debug.LogError("Could not register Virtual Button.");
GameObject.Destroy(virtualButtonObject);
return(null);
}
else
{
Debug.Log("Registered Virtual Button successfully.");
}
// If we manually register the button it should be unregistered if the
// Unity object is destroyed.
newVBB.UnregisterOnDestroy = true;
return(newVBB);
}
private void AddVirtualButtons(VirtualButtonBehaviour[] vbBehaviours)
{
for (int i = 0; i < vbBehaviours.Length; ++i)
{
VirtualButtonBehaviour virtualButton = vbBehaviours[i];
if (virtualButton.VirtualButtonName == null)
{
Debug.LogError("VirtualButton at " + i +
" has no name.");
continue;
}
ImageTargetBehaviour imageTarget = virtualButton.GetImageTarget();
if (imageTarget == null)
{
Debug.LogError("VirtualButton named " +
virtualButton.VirtualButtonName +
" is not attached to an ImageTarget.");
continue;
}
// Image Target is not part of this data set.
if (!imageTarget.References(this))
{
continue;
}
int id = virtualButtonGetId(DataSetPtr, imageTarget.TrackableName,
virtualButton.VirtualButtonName);
if (id == -1)
{
// Create the virtual button
if (RegisterVirtualButton(virtualButton, imageTarget.TrackableName))
{
Debug.Log("Successfully created virtual button " +
virtualButton.VirtualButtonName +
" at startup");
virtualButton.UnregisterOnDestroy = true;
id = virtualButtonGetId(DataSetPtr, imageTarget.TrackableName,
virtualButton.VirtualButtonName);
}
else
{
Debug.LogError("Failed to create virtual button " +
virtualButton.VirtualButtonName +
" at startup");
}
}
if (id != -1)
{
// Duplicate check:
if (!mVBBehaviourDict.ContainsKey(id))
{
// OK:
virtualButton.InitializeID(id);
mVBBehaviourDict.Add(id, virtualButton);
Debug.Log("Found VirtualButton named " +
virtualButton.VirtualButtonName + " with id " +
virtualButton.ID);
// Handle any changes to the virtual button in the scene
// that are not reflected in the config file
virtualButton.UpdatePose();
if (!virtualButton.UpdateAreaRectangle(this) ||
!virtualButton.UpdateSensitivity(this))
{
Debug.LogError("Failed to update virtual button " +
virtualButton.VirtualButtonName +
" at startup");
}
else
{
Debug.Log("Updated virtual button " +
virtualButton.VirtualButtonName +
" at startup");
}
}
}
}
}