private void Form1_Paint(object sender, PaintEventArgs e)
{
e.Graphics.Clear(Color.White);
RectanglesDoc.Draw(e.Graphics);
if (_drawingContour && _startPoint != Point.Empty)
{
var pen = new Pen(Color.Gray, 2);
pen.DashStyle = DashStyle.Dot;
var position = GetPosition();
if (_ctrlPressed) // draw a contour square
{
int max = Math.Max(_width, _height);
e.Graphics.DrawRectangle(pen, position.X, position.Y, max, max);
}
else // draw a contour rectangle
{
e.Graphics.DrawRectangle(pen, position.X, position.Y, _width, _height);
}
pen.Dispose();
}
if (Filename != string.Empty)
{
this.Text = $"FDraw | {Filename.Substring(Filename.LastIndexOf(@"\") + 1)}";
}
else
{
this.Text = "FDraw";
}
}
public Form1()
{
InitializeComponent();
RectanglesDoc = new RectanglesDoc();
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)
{
RectanglesDoc = new RectanglesDoc();
Filename = string.Empty;
ResetValues();
Invalidate(true);
}
}
private void Form1_MouseDown(object sender, MouseEventArgs e)
{
mouseMoved = false;
_mousePressed = true;
_selected = RectanglesDoc.Select(e.Location);
if (!_selected)
{
_startPoint = e.Location;
_drawingContour = true;
}
else
{
_prevX = e.X;
_prevY = e.Y;
}
}
private void Form1_MouseMove(object sender, MouseEventArgs e)
{
mouseMoved = true;
if (!_mousePressed)
{
return;
}
if (_selected)
{
RectanglesDoc.Move(e.X - _prevX, e.Y - _prevY);
_prevX = e.X;
_prevY = e.Y;
_drawingContour = false;
}
else
{
int diffX = e.Location.X - _startPoint.X;
int diffY = e.Location.Y - _startPoint.Y;
_width = Math.Abs(diffX);
_height = Math.Abs(diffY);
if (_ctrlPressed) // draw a contour square
{
int max = Math.Max(_width, _height);
int xm = (diffX) < 0 ? -1 : 1;
int ym = (diffY) < 0 ? -1 : 1;
_endPoint = new Point(_startPoint.X + max * xm, _startPoint.Y + max * ym);
}
else // draw a contour rectangle
{
_endPoint = e.Location;
}
}
Invalidate();
}
private void Form1_MouseUp(object sender, MouseEventArgs e)
{
_mousePressed = false;
if (!_selected && mouseMoved) // nothing selected, add a shape
{
var position = GetPosition();
if (_ctrlPressed) // add a square
{
int max = Math.Max(_width, _height);
RectanglesDoc.AddRectangle(position, max, max, Color);
}
else // add a rectangle
{
RectanglesDoc.AddRectangle(position, _width, _height, Color);
}
}
_selected = false;
RectanglesDoc.ClearSelected();
_startPoint = Point.Empty;
_drawingContour = true;
Invalidate(true);
}
