private void control_MouseDown(object sender, MouseEventArgs e)
{
//if an Arc is currently looking for a target
if (!foundTransitionTarget || !foundPlaceTarget)
{
//if an Arc is looking for a Transition as target and a Transition was clicked
if (!foundTransitionTarget && sender is Transition)
{
//check if there already is an Arc with the same input and output
arcExists = false;
for (int i = placeSelected.OutputCount() - 1; i >= 0; i--)
{
if (placeSelected.getOutput(i) == sender as Transition)
{
arcExists = true;
break;
}
}
//if there is no Arc with the same input and output
if (!arcExists)
{
arcSelected.setOutput(sender as Transition);
transitionSelected = sender as Transition;
transitionSelected.InputAdd(arcSelected.InputFrom as Place);
placeSelected.OutputAdd(sender as Transition);
changingSelection = true;
namingBox.Text = transitionSelected.transitionName.Text;
addPlace.Visibility = Visibility.Visible;
addTransition.Visibility = Visibility.Visible;
nameBox.Visibility = Visibility.Visible;
numberBox.Visibility = Visibility.Hidden;
addArc.Visibility = Visibility.Visible;
deleteObject.Visibility = Visibility.Visible;
runNet.Visibility = Visibility.Visible;
transitionActive = true;
placeActive = false;
arcActive = false;
}
}
//if an Arc is looking for a Place as target and a Place was clicked
if (!foundPlaceTarget && sender is Place)
{
//check if there already is an Arc with the same input and output
arcExists = false;
for (int i = transitionSelected.OutputCount() - 1; i >= 0; i--)
{
if (transitionSelected.getOutput(i) == sender as Place)
{
arcExists = true;
break;
}
}
//if there is no Arc with the same input and output
if (!arcExists)
{
arcSelected.setOutput(sender as Place);
placeSelected = sender as Place;
placeSelected.InputAdd(arcSelected.InputFrom as Transition);
transitionSelected.OutputAdd(sender as Place);
changingSelection = true;
namingBox.Text = placeSelected.placeName.Text;
changingSelection = true;
NUDTextBox.Text = placeSelected.numberToken.Text;
addPlace.Visibility = Visibility.Visible;
addTransition.Visibility = Visibility.Visible;
nameBox.Visibility = Visibility.Visible;
numberBox.Visibility = Visibility.Visible;
addArc.Visibility = Visibility.Visible;
deleteObject.Visibility = Visibility.Visible;
runNet.Visibility = Visibility.Visible;
placeActive = true;
transitionActive = false;
arcActive = false;
}
}
}
//if an Arc is not currently looking for a target and a Place was clicked
else if (sender is Place)
{
placeSelected = sender as Place;
changingSelection = true;
namingBox.Text = placeSelected.placeName.Text;
changingSelection = true;
NUDTextBox.Text = placeSelected.numberToken.Text;
nameBox.Visibility = Visibility.Visible;
numberBox.Visibility = Visibility.Visible;
addArc.Visibility = Visibility.Visible;
deleteObject.Visibility = Visibility.Visible;
placeActive = true;
transitionActive = false;
arcActive = false;
}
//if an Arc is not currently looking for a target and a Transition was clicked
else if (sender is Transition)
{
transitionSelected = sender as Transition;
changingSelection = true;
namingBox.Text = transitionSelected.transitionName.Text;
nameBox.Visibility = Visibility.Visible;
numberBox.Visibility = Visibility.Hidden;
addArc.Visibility = Visibility.Visible;
deleteObject.Visibility = Visibility.Visible;
transitionActive = true;
placeActive = false;
arcActive = false;
}
//if an Arc is not currently looking for a target and an Arc was clicked
else if (sender is Line)
{
//find the Arc that was clicked
foreach (Arc arc in AllArcs)
{
if (sender as Line == arc.connection)
{
arcSelected = arc;
break;
}
}
changingSelection = true;
NUDTextBox.Text = arcSelected.arcWeight.Text;
nameBox.Visibility = Visibility.Hidden;
numberBox.Visibility = Visibility.Visible;
addArc.Visibility = Visibility.Hidden;
deleteObject.Visibility = Visibility.Visible;
transitionActive = false;
placeActive = false;
arcActive = true;
}
if (e.LeftButton == MouseButtonState.Pressed)
{
//save coordinates of the click
Point position = Mouse.GetPosition(MainArea);
MouseOriginX = (int)Convert.ChangeType(position.X, typeof(int));
MouseOriginY = (int)Convert.ChangeType(position.Y, typeof(int));
//bring the clicked object into the foreground and save its original coordinates
if (placeActive)
{
Canvas.SetZIndex(placeSelected, 1);
ControlOriginX = (int)Convert.ChangeType(Canvas.GetLeft(placeSelected), typeof(int));
ControlOriginY = (int)Convert.ChangeType(Canvas.GetTop(placeSelected), typeof(int));
}
else if (transitionActive)
{
Canvas.SetZIndex(transitionSelected, 1);
ControlOriginX = (int)Convert.ChangeType(Canvas.GetLeft(transitionSelected), typeof(int));
ControlOriginY = (int)Convert.ChangeType(Canvas.GetTop(transitionSelected), typeof(int));
}
}
}
private void DeleteControl_Click(object sender, RoutedEventArgs e)
{
//check which control is selected and execute the proper delete-commands
if (placeActive)
{
//go through all the Arcs and delete the ones connected to the active Place
for (int i = AllArcs.Count - 1; i >= 0; i--)
{
if (AllArcs[i].InputFrom == placeSelected || AllArcs[i].OutputTo == placeSelected)
{
MainArea.Children.Remove(AllArcs[i]);
AllArcs.Remove(AllArcs[i]);
}
}
//go through all the Transitions and remove the connections to the active Place
for (int i = AllTransitions.Count - 1; i >= 0; i--)
{
for (int j = AllTransitions[i].OutputCount() - 1; j >= 0; j--)
{
if (AllTransitions[i].getOutput(j) == placeSelected)
{
AllTransitions[i].OutputRemove(AllTransitions[i].getOutput(j));
}
}
for (int j = AllTransitions[i].InputCount() - 1; j >= 0; j--)
{
if (AllTransitions[i].getInput(j) == placeSelected)
{
AllTransitions[i].InputRemove(AllTransitions[i].getInput(j));
}
}
}
MainArea.Children.Remove(placeSelected);
AllPlaces.Remove(placeSelected);
placeActive = false;
}
else if (transitionActive)
{
//go through all the Arcs and delete the ones connected to the active Transition
for (int i = AllArcs.Count - 1; i >= 0; i--)
{
if (AllArcs[i].InputFrom == transitionSelected || AllArcs[i].OutputTo == transitionSelected)
{
MainArea.Children.Remove(AllArcs[i]);
AllArcs.Remove(AllArcs[i]);
}
}
//go through all the Places and remove the connections to the active Transition
for (int i = AllPlaces.Count - 1; i >= 0; i--)
{
for (int j = AllPlaces[i].OutputCount() - 1; j >= 0; j--)
{
if (AllPlaces[i].getOutput(j) == transitionSelected)
{
AllPlaces[i].OutputRemove(AllPlaces[i].getOutput(j));
}
}
for (int j = AllPlaces[i].InputCount() - 1; j >= 0; j--)
{
if (AllPlaces[i].getInput(j) == transitionSelected)
{
AllPlaces[i].InputRemove(AllPlaces[i].getInput(j));
}
}
}
MainArea.Children.Remove(transitionSelected);
AllTransitions.Remove(transitionSelected);
transitionActive = false;
}
else if (arcActive)
{
//in the controls the Arc is connected to, remove the connection
if (arcSelected.InputFrom is Place)
{
placeSelected = arcSelected.InputFrom as Place;
if (!(arcSelected.OutputTo == null))
{
transitionSelected = arcSelected.OutputTo as Transition;
for (int i = transitionSelected.InputCount() - 1; i >= 0; i--)
{
if (transitionSelected.getInput(i) == arcSelected.InputFrom)
{
transitionSelected.InputRemove(transitionSelected.getInput(i));
}
}
}
for (int i = placeSelected.OutputCount() - 1; i >= 0; i--)
{
if (placeSelected.getOutput(i) == arcSelected.OutputTo)
{
placeSelected.OutputRemove(placeSelected.getOutput(i));
}
}
foundTransitionTarget = true;
}
else if (arcSelected.InputFrom is Transition)
{
transitionSelected = arcSelected.InputFrom as Transition;
if (!(arcSelected.OutputTo == null))
{
placeSelected = arcSelected.OutputTo as Place;
for (int i = placeSelected.InputCount() - 1; i >= 0; i--)
{
if (placeSelected.getInput(i) == arcSelected.InputFrom)
{
placeSelected.InputRemove(placeSelected.getInput(i));
}
}
}
for (int i = transitionSelected.InputCount() - 1; i >= 0; i--)
{
if (transitionSelected.getOutput(i) == arcSelected.OutputTo)
{
transitionSelected.OutputRemove(transitionSelected.getOutput(i));
}
}
foundPlaceTarget = true;
}
MainArea.Children.Remove(arcSelected);
AllArcs.Remove(arcSelected);
arcActive = false;
}
addPlace.Visibility = Visibility.Visible;
addTransition.Visibility = Visibility.Visible;
addArc.Visibility = Visibility.Hidden;
deleteObject.Visibility = Visibility.Hidden;
nameBox.Visibility = Visibility.Hidden;
numberBox.Visibility = Visibility.Hidden;
}