public Form1()
{
InitializeComponent();
CircleDoc = new CircleDoc();
Color = Color.DarkBlue;
Filename = string.Empty;
this.DoubleBuffered = true;
}
private void newToolStripMenuItem_Click(object sender, EventArgs e)
{
if (MessageBox.Show("Are you sure you want to start a new game?", "Start a new game",
MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
CircleDoc = new CircleDoc();
Filename = String.Empty;
Invalidate(true);
}
}
private void Form1_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Escape)
{
_drawingContour = false;
_center = Point.Empty;
Invalidate();
}
else if (e.KeyCode == Keys.Delete)
{
CircleDoc.RemoveSelected();
Invalidate(true);
}
}
private void selectAllToolStripMenuItem_Click(object sender, EventArgs e)
{
if (selectAllToolStripMenuItem.Text == "Select &All")
{
CircleDoc.SelectAll(true);
selectAllToolStripMenuItem.Text = "Unselect &All";
}
else
{
CircleDoc.SelectAll(false);
selectAllToolStripMenuItem.Text = "Select &All";
}
Invalidate();
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
e.Graphics.Clear(Color.White);
CircleDoc.Draw(e.Graphics);
if (_drawingContour && _center != Point.Empty)
{
var pen = new Pen(Color.Gray, 3);
pen.DashStyle = DashStyle.Dot;
e.Graphics.DrawEllipse(pen, _center.X - _radius, _center.Y - _radius, _radius * 2, _radius * 2);
pen.Dispose();
}
if (Filename != string.Empty)
{
this.Text = $"Color Circles | {Filename.Substring(Filename.LastIndexOf(@"\") + 1)}";
}
else
{
this.Text = "Color Circles";
}
}
private void Form1_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
if (_center == Point.Empty)
{
_center = e.Location;
_drawingContour = true;
}
else
{
_radius = (int)Math.Sqrt(Math.Pow(_center.X - e.X, 2) + Math.Pow(_center.Y - e.Y, 2));
CircleDoc.AddCircle(_center, Color, _radius);
_drawingContour = false;
_center = Point.Empty;
}
}
else if (e.Button == MouseButtons.Right)
{
CircleDoc.Select(e.Location);
}
Invalidate(true);
}
private void statusStrip1_Paint(object sender, PaintEventArgs e)
{
lblCircles.Text = $"Circles: {CircleDoc.CirclesCount()}";
}