public void StartDFA()
{
foreach (VertexView v in canvasView1.Views.OfType <VertexView>())
{
if (v.Vertex.IsStart)
{
currentVV = v;
}
v.IsHighLighted = false;
}
if (currentVV != null)
{
strip.Clear();
foreach (char c in tbPath.Text)
{
strip.Add(c.ToString());
}
stripPointer = 0;
currentVV.IsHighLighted = true;
canvasView1.Refresh();
timer1.Start();
btnStart.Visible = false;
btnPause.Visible = true;
}
else
{
//ERROR
}
}
private void BtnStep_Click(object sender, EventArgs e)
{
if (isPause)
{
StepDFA();
}
else
{
foreach (VertexView v in canvasView1.Views.OfType <VertexView>())
{
if (v.Vertex.IsStart)
{
currentVV = v;
}
v.IsHighLighted = false;
}
if (currentVV != null)
{
strip.Clear();
foreach (char c in tbPath.Text)
{
strip.Add(c.ToString());
}
stripPointer = 0;
currentVV.IsHighLighted = true;
canvasView1.Refresh();
}
else
{
//ERROR
}
}
}
private void On_MouseUp(IView sender)
{
if (moving != null)
{
moving = null;
}
if (isAdding)
{
isAdding = false;
if (Over != null)
{
if (Equals(EPreview.Edge.Vertex1, Over.Vertex))
{
this.Text = "";
}
graph.AddEdge(EPreview.Edge.Vertex1, Over.Vertex);
}
else
{
graph.AddVertex();
(canvasView1.Views[canvasView1.Views.Count - 1] as VertexView).Location = VPreview.Location;
graph.AddEdge(EPreview.Edge.Vertex1, (canvasView1.Views[canvasView1.Views.Count - 1] as VertexView).Vertex);
}
canvasView1.Views.Remove(VPreview);
canvasView1.Views.Remove(EPreview);
}
canvasView1.Refresh();
}
private void On_Mouse_Move(Object sender, MouseEventArgs e)
{
VertexView v_on_over = VertexHitTest(new Point(e.X, e.Y));
EdgeView e_on_over = EdgeHitTest(new Point(e.X, e.Y));
foreach (VertexView v in Views.OfType <VertexView>())
{
if (v_on_over != null && v == v_on_over)
{
v_on_over.Raise_MouseEnter();
v_on_over.Raise_MouseMove();
}
else
{
v.Raise_MouseLeave();
}
}
foreach (EdgeView v in Views.OfType <EdgeView>())
{
if (e_on_over != null && v == e_on_over)
{
e_on_over.Raise_MouseEnter();
}
else
{
v.Raise_MouseLeave();
}
}
Refresh();
}
private VertexView VertexAdd(Vertex vertex, Point location)
{
VertexView v = new VertexView();
v.Vertex = vertex;
v.Location = location;
v.MouseDown += On_MouseDown;
v.MouseUp += On_MouseUp;
v.MouseLeave += On_MouseLeave;
v.MouseEnter += On_MouseEnter;
return(v);
}
private VertexView VertexAdd(Vertex vertex)
{
VertexView v = new VertexView();
v.Vertex = vertex;
v.Location = new Point(r.Next(v.Radius, canvasView1.Width - v.Radius), r.Next(v.Radius, canvasView1.Height - v.Radius));
v.MouseDown += On_MouseDown;
v.MouseUp += On_MouseUp;
v.MouseLeave += On_MouseLeave;
v.MouseEnter += On_MouseEnter;
return(v);
}
public void On_VertexRemoved(Graph sender, Vertex vertex)
{
VertexView v = canvasView1.FindViewByVertex(vertex);
if (v != null)
{
v.MouseDown -= On_MouseDown;
v.MouseUp -= On_MouseUp;
v.MouseLeave -= On_MouseLeave;
v.MouseEnter -= On_MouseEnter;
canvasView1.Views.Remove(v);
}
v = null;
canvasView1.Refresh();
}
private void On_MouseMove(Object sender, MouseEventArgs e)
{
if (moving != null)
{
moving.Location = new Point(OldPoint.X + (MousePosition.X - StartPoint.X), OldPoint.Y + (MousePosition.Y - StartPoint.Y));
foreach (Edge ed in graph.NeihbourEdges(moving.Vertex))
{
if (canvasView1.FindViewByEdge(ed).Edge.Vertex1 == moving.Vertex)
{
if (canvasView1.FindViewByEdge(ed).Edge.Vertex2 == moving.Vertex)
{
canvasView1.FindViewByEdge(ed).Point1 = moving.Location;
canvasView1.FindViewByEdge(ed).Point2 = moving.Location;
}
else
{
canvasView1.FindViewByEdge(ed).Point1 = moving.Location;
}
}
else
{
canvasView1.FindViewByEdge(ed).Point2 = moving.Location;
}
}
}
if (isAdding)
{
VertexView hitTest = canvasView1.VertexHitTest(new Point(e.X, e.Y), VPreview);//, VPreview);
if (hitTest != null)
{
VPreview.Location = hitTest.Location;
Over = hitTest;
}
else
{
VPreview.Location = new Point(OldPoint.X + (MousePosition.X - StartPoint.X), OldPoint.Y + (MousePosition.Y - StartPoint.Y));
Over = null;
}
EPreview.Point2 = canvasView1.FindViewByVertex(EPreview.Edge.Vertex2).Location;
}
}
private void On_MouseDown(IView sender)
{
if (MouseButtons == MouseButtons.Left)
{
foreach (VertexView v in canvasView1.Views.OfType <VertexView>())
{
v.IsSelected = false;
}
(sender as VertexView).IsSelected = true;
tbNameNode.Text = (sender as VertexView).Vertex.Value;
tbNameNode.Focus();
tbNameNode.SelectAll();
cbStartState.Checked = (sender as VertexView).Vertex.IsStart;
cbFinalState.Checked = (sender as VertexView).Vertex.IsFinish;
if (OnSelectedChange != null)
{
OnSelectedChange(sender as VertexView);
}
canvasView1.BringToFront(sender);
moving = (VertexView)sender;
}
else
{
VPreview.Location = (sender as VertexView).Location;
VPreview.Vertex = new Vertex("");
canvasView1.Views.Add(VPreview);
EPreview.Edge = new Edge((sender as VertexView).Vertex, VPreview.Vertex);
EPreview.Point1 = canvasView1.FindViewByVertex(EPreview.Edge.Vertex1).Location;
EPreview.Point2 = canvasView1.FindViewByVertex(EPreview.Edge.Vertex2).Location;
canvasView1.Views.Add(EPreview);
canvasView1.BringToFront(VPreview);
isAdding = true;
Over = (sender as VertexView);
}
OldPoint = (sender as VertexView).Location;
StartPoint = MousePosition;
}
public void StepDFA()
{
if (stripPointer < strip.Count)
{
foreach (Edge e in graph.IncidentedEdges(currentVV.Vertex))
{
if (e.Value.Contains(strip[stripPointer]))
{
currentVV.IsHighLighted = false;
currentVV = canvasView1.FindViewByVertex(e.Vertex2);
currentVV.IsHighLighted = true;
break;
}
}
stripPointer += 1;
canvasView1.Refresh();
StripRedraw();
}
else
{
timer1.Stop();
stripPointer = 0;
isPause = false;
currentVV.IsHighLighted = false;
if (currentVV.Vertex.IsFinish)
{
lbResult.ForeColor = Color.GreenYellow;
lbResult.Text = "Accepted";
}
else
{
lbResult.ForeColor = Color.Tomato;
lbResult.Text = "Rejected";
}
btnStart.Visible = true;
btnPause.Visible = false;
StripRedraw();
}
}
private void On_Mouse_Down(Object sender, MouseEventArgs e)
{
foreach (VertexView v in Views.OfType <VertexView>())
{
v.IsSelected = false;
}
VertexView on_down = VertexHitTest(new Point(e.X, e.Y));
if (on_down != null)
{
on_down.Raise_MouseDown();
}
EdgeView on_click = EdgeHitTest(new Point(e.X, e.Y));
if (on_click != null)
{
on_click.Raise_MouseClick();
}
Refresh();
}
void GraphForm_OnSelectedChange(VertexView v)
{
Selected = v;
}