private void pictureBox1_Click(object sender, EventArgs e)
{
// Downcast eventargs
MouseEventArgs mouseClick = (MouseEventArgs)e;
// Route mouse event based on current application status
switch (appStatus)
{
case ADD_RECT_START:
// Create first point of new obstacle
lastPoint = getGridPoint(mouseClick);
appStatus = ADD_RECT_END;
toolStripStatusLabel1.Text = "Click to finish obstacle";
break;
case ADD_RECT_END:
// Finish new obstacle
Point p = getGridPoint(mouseClick);
int x = p.X;
int y = p.Y;
int width, height, startX, startY;
if (x > lastPoint.X)
{
width = x - lastPoint.X;
startX = lastPoint.X;
}
else
{
width = lastPoint.X - x;
startX = x;
}
if (y > lastPoint.Y)
{
height = y - lastPoint.Y;
startY = lastPoint.Y;
}
else
{
height = lastPoint.Y - y;
startY = y;
}
Point startPoint = new Point(startX, startY);
Rect rect = new Rect(startPoint, width, height);
rects.Enqueue(rect);
appStatus = IDLE;
toolStripStatusLabel1.Text = defaultStatus;
break;
case ADD_START:
// Add path start point
if (StartPoint == null)
{
StartPoint = new MapPoint(getGridPoint(mouseClick), false, Color.Blue);
points.Add(StartPoint);
appStatus = IDLE;
toolStripStatusLabel1.Text = defaultStatus;
}
break;
case ADD_END:
// Add path end point
if (EndPoint == null)
{
EndPoint = new MapPoint(getGridPoint(mouseClick), false, Color.Red);
points.Add(EndPoint);
appStatus = IDLE;
toolStripStatusLabel1.Text = defaultStatus;
}
break;
}
// Redraw the pictureBox
pictureBox1.Invalidate();
}
/// <summary>
/// Draws a single MapPoint point in Graphics component g.
/// </summary>
/// <param name="point"></param>
/// <param name="g"></param>
private void DrawMapPoint(MapPoint point, Graphics g)
{
SolidBrush pointBrush = new SolidBrush(point.MyColor);
Rectangle rect = new Rectangle(point.X - 5, point.Y - 5, 10, 10);
g.FillEllipse(pointBrush, rect);
}
