/// <summary>
/// When left mouse button clicked
/// Opens menu from which user can select a coloring option
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void MenuItem_Click(object sender, RoutedEventArgs e)
{
MenuItem menuItem = (MenuItem)sender;
VertexControl vertex = toManipulate as VertexControl;// the previosly clicked element
if (vertex != null)
{
// get the shapes cordinates
GeneralTransform gt = vertex.TransformToVisual(Application.Current.RootVisual as UIElement);
Point vertex_loc = gt.Transform(new Point(0, 0));
// The mouse pointer is inside the Vertex
if (Math.Abs(vertex_loc.X - _mX) < vertex_radius)
{
if (Math.Abs(vertex_loc.Y - _mY) < vertex_radius)
{
// Retrive userId from Isolated Storage
int userID = 0;
if (i_storage.Contains("userID"))
{
userID = (int)i_storage["userID"];
}
switch (menuItem.Header.ToString())
{
case "Green":
if (vertex.Red_Ellipse.Visibility == Visibility.Visible)
{
vertex.Red_Ellipse.Visibility = Visibility.Collapsed;
vertex.Green_Ellipse.Visibility = Visibility.Visible;
vertex.VertexColor = "Green";
// call Web Service Method Asynchronicly for each log entery (so nothing will be logged for changing to same color)
client.InsertIntoExperimentActionsAsync(1, userID, vertex.VertexID, vertex.VertexColor, DateTime.Now);
// the selected Vertex and true to increase thickness
ChangeEdgeThickness(vertex, true);
}
break;
case "Red":
if (vertex.Green_Ellipse.Visibility == Visibility.Visible)
{
vertex.Red_Ellipse.Visibility = Visibility.Visible;
vertex.Green_Ellipse.Visibility = Visibility.Collapsed;
vertex.VertexColor = "Red";
// call Web Service Method Asynchronicly for each log entery
client.InsertIntoExperimentActionsAsync(1, userID, vertex.VertexID, vertex.VertexColor, DateTime.Now);
// the selected Vertex and false to decrease thickness
ChangeEdgeThickness(vertex, false);
}
break;
default:
break;
}
}
}
cm.IsOpen = false;// sets a value to make the ContextMenu invisible
}
}
/// <summary>
/// Change the Edges thickness when alligned Vertex pressed
/// </summary>
/// <param name="ellipse">The Ellipese pressed</param>
/// <param name="increase">Variable indicating whether to increase or decrease the thickness</param>
void ChangeEdgeThickness(VertexControl ellipse, bool increase)
{
// Change Edge thickness according to number of aligned Vertices selected
System.Windows.Shapes.Line line;
// Iterate through all the edges connected to clicked vertex
foreach (var item in vertexEdges[ellipse.VertexID])
{
// if edge wasn't selected before - add it to list
if (!(thickerEdges.ContainsKey(item)))
{
thickerEdges.Add(item, new List <string>());
}
// get the edge instance on the canvas
line = (System.Windows.Shapes.Line)canvas1.FindName(item);
line.Visibility = Visibility.Collapsed;
if (increase)
{
// foreach edge holds the two verteces connected to it (as known for now)
thickerEdges[item].Add(ellipse.VertexID);
#region Story Board
SolidColorBrush myAnimatedBrush = new SolidColorBrush();
Storyboard colorStoryboard = new Storyboard();
Storyboard.SetTargetProperty(colorStoryboard, new PropertyPath("Color"));//(SolidColorBrush.ColorProperty));
Storyboard.SetTarget(colorStoryboard, myAnimatedBrush);
ColorAnimationUsingKeyFrames caukf = new ColorAnimationUsingKeyFrames();
// caukf.BeginTime = new TimeSpan(0, 0, 0, 0);
LinearColorKeyFrame lckf0 = new LinearColorKeyFrame();
lckf0.KeyTime = KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 0, 900));
lckf0.Value = Colors.Red;
LinearColorKeyFrame lckf1 = new LinearColorKeyFrame();
lckf1.KeyTime = KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 0, 1900));
lckf1.Value = Colors.White;
LinearColorKeyFrame lckf2 = new LinearColorKeyFrame();
lckf2.KeyTime = KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 0, 1900));
lckf2.Value = Colors.Red;
LinearColorKeyFrame lckf3 = new LinearColorKeyFrame();
lckf3.KeyTime = KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 0, 2300));
lckf3.Value = Colors.White;
caukf.KeyFrames.Add(lckf0);
caukf.KeyFrames.Add(lckf1);
//caukf.KeyFrames.Add(lckf2);
//caukf.KeyFrames.Add(lckf3);
colorStoryboard.Children.Add(caukf);
colorStoryboard.Begin();
#endregion
line.Stroke = myAnimatedBrush;
// increase Edge thickness
if (line.StrokeThickness == 4)
{
line.StrokeThickness += 5;
}
}
else// The edge's thickness needs to be decreased (the vertex was unselected)
{
// Holds all the thick Edges
List <string> EdgeVerticesList = thickerEdges[item];
List <string> copy = new List <string>();
if ((line.StrokeThickness > 4))
{
foreach (string s in EdgeVerticesList)
{
if (s != ellipse.VertexID)
{
copy.Add(s);
}
}
thickerEdges[item] = copy;
if (copy.Count == 0)
{
line.StrokeThickness -= 5;
// line.Stroke = new SolidColorBrush(Colors.White);
}
}
}
line.Visibility = Visibility.Visible;
}
// Check if graph solved correctly
bool solved_correctly = true;
foreach (var item in m_line_list)// Iterate on all edges and check thier thickness
{
if (item.StrokeThickness <= 4)
{
solved_correctly = false;
}
}
// Write conclusion for graph solution to the DB
client.SolvedProblemGraphAsync((int)i_storage["userID"], solved_correctly, DateTime.Now);
}
