//the class PaintEventArgs provides data for the object event Paint
private void panelDrawing_Paint(object sender, PaintEventArgs e)
{
// Fill before painting to have a lighter border
// Rectangle
if (this.radioButtonRectangle.Checked == true && myRectangle != null)
{
if (fill)
{
myRectangle.Fill(e);
}
myRectangle.Draw(e);
this.textBoxDisplay.Text = myRectangle.ToString();
}
// Square
if (this.radioButtonSquare.Checked == true && mySquare != null)
{
if (fill)
{
mySquare.Fill(e);
}
mySquare.Draw(e);
this.textBoxDisplay.Text = mySquare.ToString();
}
// Circle
if (this.radioButtonCircle.Checked == true && myCircle != null)
{
if (fill)
{
myCircle.Fill(e);
}
myCircle.Draw(e);
this.textBoxDisplay.Text = myCircle.ToString();
}
// Ellipse
if (this.radioButtonEllipse.Checked == true && myEllipse != null)
{
if (fill)
{
myEllipse.Fill(e);
}
myEllipse.Draw(e);
this.textBoxDisplay.Text = myEllipse.ToString();
}
}
static void Main(string[] args)
{
Point centreRect = new Point(1, 1);
Point centreSquare = new Point(0, 0);
Rectangle rect = new Rectangle(3, 5, centreRect);
Square square = new Square(2, centreSquare);
Ellipse ellipse = new Ellipse(2, 1, centreSquare);
Console.WriteLine(rect.ToString());
Console.WriteLine(rect.GetArea() + " " + rect.GetPerimeter());
Console.WriteLine(square.ToString());
Console.WriteLine(square.GetArea() + " " + square.GetPerimeter());
Console.WriteLine(ellipse.ToString());
Console.WriteLine(ellipse.GetArea() + " " + ellipse.GetPerimeter());
}
static void Main(string[] args)
{
Point p1 = new Point(1, 2);
Point p2 = new Point(5, 1);
Point p3 = new Point(3, 5);
Point p4 = new Point(1, 5);
Triangle triangle = new Triangle(p1, p2, p3);
//Console.WriteLine(triangle.GetArea());
//Console.WriteLine(triangle.GetPerimeter());
Console.WriteLine(triangle.ToString());
Ellipse ellipse = new Ellipse(5, 10);
//Console.WriteLine(ellipse.GetPerimeter());
//Console.WriteLine(ellipse.GetArea());
Console.WriteLine(ellipse.ToString());
Rectangle rectangle = new Rectangle(p1,p2,p3,p4);
//Console.WriteLine(rectangle.Width);
//Console.WriteLine(rectangle.Heigth);
//Console.WriteLine(rectangle.GetArea());
//Console.WriteLine(rectangle.GetPerimeter());
Console.WriteLine(rectangle.ToString());
}
static void Main(string[] args)
{
Point p1 = new Point(1, 2);
Point p2 = new Point(5, 1);
Point p3 = new Point(3, 5);
Point p4 = new Point(1, 5);
Triangle triangle = new Triangle(p1, p2, p3);
//Console.WriteLine(triangle.GetArea());
//Console.WriteLine(triangle.GetPerimeter());
Console.WriteLine(triangle.ToString());
Ellipse ellipse = new Ellipse(5, 10);
//Console.WriteLine(ellipse.GetPerimeter());
//Console.WriteLine(ellipse.GetArea());
Console.WriteLine(ellipse.ToString());
Rectangle rectangle = new Rectangle(p1, p2, p3, p4);
//Console.WriteLine(rectangle.Width);
//Console.WriteLine(rectangle.Heigth);
//Console.WriteLine(rectangle.GetArea());
//Console.WriteLine(rectangle.GetPerimeter());
Console.WriteLine(rectangle.ToString());
}
private void Draw_Click(object sender, EventArgs e)
{
// Rectangle
if (this.radioButtonRectangle.Checked == true)
{
int x = Convert.ToInt32(this.textBoxX.Text);
int y = Convert.ToInt32(this.textBoxY.Text);
int height = Convert.ToInt32(this.textBoxHeight.Text);
int width = Convert.ToInt32(this.textBoxWidth.Text);
myRectangle = new Rectangle(x, y, height, width);
// fill or draw?
fill = false;
//txt_Display
String info = myRectangle.ToString();
this.textBoxDisplay.Text = info;
this.textBoxDisplay.Visible = true;
}
// Square
if (this.radioButtonSquare.Checked == true)
{
int x = Convert.ToInt32(this.textBoxX.Text);
int y = Convert.ToInt32(this.textBoxY.Text);
int width = Convert.ToInt32(this.textBoxWidth.Text);
mySquare = new Square(x, y, width);
// fill or draw?
fill = false;
//txt_Display
String info = mySquare.ToString();
this.textBoxDisplay.Text = info;
this.textBoxDisplay.Visible = true;
}
// Circle
if (this.radioButtonCircle.Checked == true)
{
int x = Convert.ToInt32(this.textBoxX.Text);
int y = Convert.ToInt32(this.textBoxY.Text);
int width = Convert.ToInt32(this.textBoxWidth.Text);
myCircle = new Circle(x, y, width);
// fill or draw?
fill = false;
//txt_Display
String info = myCircle.ToString();
this.textBoxDisplay.Text = info;
this.textBoxDisplay.Visible = true;
}
// Ellipse
if (this.radioButtonEllipse.Checked == true)
{
int x = Convert.ToInt32(this.textBoxX.Text);
int y = Convert.ToInt32(this.textBoxY.Text);
int height = Convert.ToInt32(this.textBoxHeight.Text);
int width = Convert.ToInt32(this.textBoxWidth.Text);
myEllipse = new Ellipse(x, y, height, width);
// fill or draw?
fill = false;
//txt_Display
String info = myEllipse.ToString();
this.textBoxDisplay.Text = info;
this.textBoxDisplay.Visible = true;
}
this.panelDrawing.Invalidate(); // it causes the control to be redrawn
this.panelDrawing.Update();
this.Refresh();
}