// This method is quite important and detects all mouse clicks - other methods may need
// to be implemented to detect other kinds of event handling eg keyboard presses.
private void mouseClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
// 'if' statements can distinguish different selected menu operations to implement.
// There may be other (better, more efficient) approaches to event handling,
// but this approach works.
if (selectSquareStatus == true)
{
if (clicknumber == 0)
{
one = new Point(e.X, e.Y);
clicknumber = 1;
}
else
{
two = new Point(e.X, e.Y);
clicknumber = 0;
selectSquareStatus = false;
Graphics g = this.CreateGraphics();
Pen blackpen = new Pen(Color.Black);
Square aShape = new Square(one, two);
aShape.draw(g, blackpen);
}
}
}
}
// This method is quite important and detects all mouse clicks - other methods may need
// to be implemented to detect other kinds of event handling eg keyboard presses.
private void mouseClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
// 'if' statements can distinguish different selected menu operations to implement.
// There may be other (better, more efficient) approaches to event handling,
// but this approach works.
if (selectSquareStatus == true)
{
if (clicknumber == 0)
{
one = new Point(e.X, e.Y);
clicknumber = 1;
}
else
{
two = new Point(e.X, e.Y);
clicknumber = 0;
selectSquareStatus = false;
Graphics g = this.CreateGraphics();
Pen blackpen = new Pen(Color.Black);
Square aSquare = new Square(one, two);
aSquare.ShapeType = (int)ShapeTypes.Square;
aSquare.draw(g, blackpen);
//add the square to the shapes list
shapes.Add(aSquare);
}
}
//If Triangle Selected
else if (selectTriangleStatus == true)
{
if (clicknumber == 0)
{
one = new Point(e.X, e.Y);
clicknumber = 1;
}
else
{
two = new Point(e.X, e.Y);
clicknumber = 0;
selectTriangleStatus = false;
Graphics g = this.CreateGraphics();
Pen blackpen = new Pen(Color.Black);
Triangle aTriangle = new Triangle(one, two);
aTriangle.ShapeType = (int)ShapeTypes.Triangle;
aTriangle.draw(g, blackpen);
//add the triangle to the shapes list
shapes.Add(aTriangle);
}
}
else if (selectCircleStatus == true)
{
if (clicknumber == 0)
{
one = new Point(e.X, e.Y);
clicknumber = 1;
}
else
{
two = new Point(e.X, e.Y);
clicknumber = 0;
selectTriangleStatus = false;
Graphics g = this.CreateGraphics();
Pen blackpen = new Pen(Color.Black);
Circle aCircle = new Circle(one, two);
aCircle.ShapeType = (int)ShapeTypes.Circle;
aCircle.draw(g, blackpen);
//add the circle to the shapes list
shapes.Add(aCircle);
}
}
}
}
//rotate the shape when it's selected
private void itemRotation()
{
Graphics g = this.CreateGraphics();
SolidBrush redBrush = new SolidBrush(Color.Red);
SolidBrush whiteBrush = new SolidBrush(Color.White);
Pen blackPen = new Pen(Color.Black);
isMove = false;
int angle = 10;
for (int i = 0; i < shapes.Count; i++)
{
//calculate the angle and redraw in the new position
int width = Math.Abs(shapes[i].keyPt.X - shapes[i].oppPt.X);
int height = Math.Abs(shapes[i].keyPt.Y - shapes[i].oppPt.Y);
PointF center = new PointF(shapes[i].keyPt.X + (shapes[i].oppPt.X / 2.0f), shapes[i].keyPt.Y + (shapes[i].oppPt.Y / 2.0f));
//rotate the shape depends on it's type
if (shapes[i].Selected)
{
if (shapes[i].ShapeType == (int)ShapeTypes.Square)
{
g.TranslateTransform(this.Width / 2, this.Height / 2);
g.RotateTransform(angle);
g.TranslateTransform(-this.Width / 2, -this.Height / 2);
Square aSquare = new Square(new Point(shapes[i].keyPt.X, shapes[i].keyPt.Y), new Point(shapes[i].oppPt.X, shapes[i].oppPt.Y));
aSquare.ShapeType = (int)ShapeTypes.Square;
g.Clear(Color.White);
aSquare.draw(g, blackPen);
((Square)shapes[i]).fillSquare(g, redBrush);
}
else if (shapes[i].ShapeType == (int)ShapeTypes.Triangle)
{
g.TranslateTransform(this.Width / 2, this.Height / 2);
g.RotateTransform(angle);
g.TranslateTransform(-this.Width / 2, -this.Height / 2);
Pen blackpen = new Pen(Color.Black);
Triangle aTriangle = new Triangle(new Point(shapes[i].keyPt.X, shapes[i].keyPt.Y), new Point(shapes[i].oppPt.X, shapes[i].oppPt.Y));
aTriangle.ShapeType = (int)ShapeTypes.Triangle;
g.Clear(Color.White);
aTriangle.draw(g, blackpen);
((Triangle)shapes[i]).fillTriangle(g, redBrush);
}
else if (shapes[i].ShapeType == (int)ShapeTypes.Circle)
{
g.TranslateTransform(this.Width / 2, this.Height / 2);
g.RotateTransform(angle);
g.TranslateTransform(-this.Width / 2, -this.Height / 2);
Circle aCircle = new Circle(new Point(shapes[i].keyPt.X, shapes[i].keyPt.Y), new Point(shapes[i].oppPt.X, shapes[i].oppPt.Y));
aCircle.ShapeType = (int)ShapeTypes.Circle;
g.Clear(Color.White);
aCircle.draw(g, blackPen);
((Circle)shapes[i]).fillCircle(g, redBrush);
}
}
}
}