public void MoveSquareRight()
{
Square oldSquare = new Square(new Point(MainForm.shapes[ShapeSelectionForm.index].Start.X,
MainForm.shapes[ShapeSelectionForm.index].Start.Y),
new Point(MainForm.shapes[ShapeSelectionForm.index].End.X,
MainForm.shapes[ShapeSelectionForm.index].End.Y),
MainForm.shapes[ShapeSelectionForm.index].Colour);
Square movedSquare = new Square(new Point(MainForm.shapes[ShapeSelectionForm.index].Start.X + movementIncrement,
MainForm.shapes[ShapeSelectionForm.index].Start.Y),
new Point(MainForm.shapes[ShapeSelectionForm.index].End.X + movementIncrement,
MainForm.shapes[ShapeSelectionForm.index].End.Y),
MainForm.shapes[ShapeSelectionForm.index].Colour);
oldSquare.DrawSqaure(new Pen(MainForm.Canvas.BackColor, MainForm.PenSize));
movedSquare.HighlightSqaure(new Pen(movedSquare.Colour));
MainForm.shapes.Insert(ShapeSelectionForm.index, movedSquare);
MainForm.shapes.RemoveAt(ShapeSelectionForm.index + 1);
movedSquare.HighlightSqaure(new Pen(movedSquare.Colour));
CalculateSquareCenter(movedSquare);
}
/// <summary>
/// Rotate a square
/// </summary>
/// <param name="g"></param>
private void RotateSquare()
{
//old square object to delete the old one
Square oldSquare = new Square(MainForm.shapes[ShapeSelectionForm.index].Start,
MainForm.shapes[ShapeSelectionForm.index].End,
MainForm.shapes[ShapeSelectionForm.index].Colour);
//square object with rotated points
Square rotatedSquare = new Square(RotatePoint(MainForm.shapes[ShapeSelectionForm.index].Start, ShapeCenter),
RotatePoint(MainForm.shapes[ShapeSelectionForm.index].End, ShapeCenter),
MainForm.shapes[ShapeSelectionForm.index].Colour);
//delete the old square
oldSquare.DrawSqaure(new Pen(MainForm.Canvas.BackColor));
//draw the rotated square
rotatedSquare.HighlightSqaure(new Pen(rotatedSquare.Colour));
//insert the square into the index of the selected shape
MainForm.shapes.Insert(ShapeSelectionForm.index, rotatedSquare);
//remove the shape after the inserted shape
MainForm.shapes.RemoveAt(ShapeSelectionForm.index + 1);
//highlight the newly rotated square
rotatedSquare.HighlightSqaure(new Pen(rotatedSquare.Colour));
MainForm.ApplyDrawingChange();
}
/// <summary>
/// Updates a shape by redrawing it
/// </summary>
/// <param name="g"></param>
/// <param name="shape"></param>
public static void UpdateShape(Graphics g, Shape shape)
{
//if the index not -1, meaning a shape is not selected
if (ShapeSelectionForm.index != -1)
{
//switch on the shape type
switch (shape.Type)
{
case "Square":
Square nonSelectedSquare = new Square(shape.Start, shape.End, shape.Colour);
nonSelectedSquare.DrawSqaure(new Pen(shape.Colour));
break;
case "Circle":
Circle nonSelectedCircle = new Circle(shape.Colour, shape.Start, shape.End, shape.Radius);
nonSelectedCircle.Draw();
break;
case "Triangle":
Triangle nonSelectedTriangle = new Triangle(shape.Start, shape.End, shape.Colour);
nonSelectedTriangle.DrawTriangle(new Pen(shape.Colour));
break;
}
//apply the drawing change
MainForm.ApplyDrawingChange();
}
}
/// <summary>
/// Triggers on mouse move in the panel and
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void CanvasMouseMove(object sender, MouseEventArgs e)
{
// using Graphics g = Canvas.CreateGraphics();
using Graphics g = Graphics.FromImage(drawingRegion);
//create a pen object
mainPen = new Pen(ShapeCreationForm.chosenColour, PenSize);
// if the mouse used to click was the left button and the CreateSqaure is true
if (e.Button == MouseButtons.Left && CreateSquare == true)
{
//set the endPoint to the positon of the mouse
endPoint = new Point(e.X, e.Y);
//create a square object to represent the template of the square
Square s = new Square(startPoint, endPoint, mainPen.Color);
//refresh the canvas to prevent creating a vast amount of shapes
ResetDrawingRegion();
//draw the square to the canvas
s.DrawSqaure(mainPen);
}
else if (e.Button == MouseButtons.Left && CreateCircle == true)
{
endPoint = new Point(e.X, e.Y);
Circle c = new Circle(mainPen.Color, startPoint, endPoint, Circle.CalculateSize(startPoint.X, startPoint.Y, endPoint.X, endPoint.Y));
//reset the drawing region
ResetDrawingRegion();
//draw the circle
c.Draw();
}
else if (e.Button == MouseButtons.Left && CreateTriangle == true)
{
//set the endPoint to the positon of the mouse
endPoint = new Point(e.X, e.Y);
//create a square object to represent the template of the square
Triangle t = new Triangle(startPoint, endPoint, mainPen.Color);
//refresh the canvas to prevent creating a vast amount of shapes
ResetDrawingRegion();
//draw the square to the canvas
t.DrawTriangle(mainPen);
}
//set the background of the canvas to the drawing region
Canvas.BackgroundImage = drawingRegion;
}
/// <summary>
/// Triggers on clicking the delete button
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Deletebtn_Click(object sender, EventArgs e)
{
//draws to the canvas
using Graphics g = Graphics.FromImage(MainForm.drawingRegion);
//used to remove a shape from the canvas
Pen deletePen = new Pen(MainForm.Canvas.BackColor);
if (index != -1)
{
//if the shape list isn't empty and the index is not 1
if (MainForm.shapes.Count > 0 && index != -1)
{
//switch statement on the shape type
switch (MainForm.shapes[index].Type)
{
case "Square":
//square object to delete the old sqaure
Square deletetionSquare = new Square(MainForm.shapes[index].Start, MainForm.shapes[index].End, MainForm.shapes[index].Colour);
//draw the new square over the old square
deletetionSquare.DrawSqaure(deletePen);
break;
case "Circle":
//circle object to delete the old square
Circle deletionCircle = new Circle(MainForm.shapes[index].Colour, MainForm.shapes[index].Start, MainForm.shapes[index].End, MainForm.shapes[index].Radius);
//deletet the old circle
deletionCircle.Delete();
break;
case "Triangle":
//triangle object to delete the old triangle
Triangle deletionTrianlge = new Triangle(MainForm.shapes[index].Start, MainForm.shapes[index].End, MainForm.shapes[index].Colour);
//delete the old triangle
deletionTrianlge.DrawTriangle(deletePen);
break;
}
ShapeMovementForm.RepairAllOtherShapes();
//stops the shapes from re-appearing when the canvas is refreshed
MainForm.allShapes = (Bitmap)MainForm.drawingRegion.Clone();
//remove the shape from the list
MainForm.shapes.RemoveAt(index);
//set the index to -1 (no shape selected)
index = -1;
//reset the drawing region bitmap
MainForm.ResetDrawingRegion();
}
//remove the delete pen from memory
deletePen.Dispose();
}
else
{
MessageBox.Show("Select a shape to delete.");
}
}
