public void TestDefaultCheckIsSelected()
{
Shape shape = new Shape();
shape.SetPoints(new Point(20, 30), new Point(30, 40));
Assert.IsTrue(shape.CheckIsSelected(new Point(25, 35)));
Assert.IsFalse(shape.CheckIsSelected(new Point(19, 35)));
Assert.IsFalse(shape.CheckIsSelected(new Point(25, 41)));
Assert.IsFalse(shape.CheckIsSelected(new Point(19, 41)));
}
public void TestSetPoints()
{
Shape shape = new Shape();
shape.SetPoints(new Point(20, 30), new Point(30, 40));
Assert.AreEqual(20, shape.TopLeftPoint.X);
Assert.AreEqual(30, shape.TopLeftPoint.Y);
Assert.AreEqual(30, shape.BottomRightPoint.X);
Assert.AreEqual(40, shape.BottomRightPoint.Y);
}
public void TestBottomRightPoint()
{
Shape shape = new Shape();
shape.SetPoints(new Point(20, 30), new Point(30, 40));
Assert.AreEqual(30, shape.BottomRightPoint.X);
Assert.AreEqual(40, shape.BottomRightPoint.Y);
shape.SetPoints(new Point(80, 30), new Point(30, 40));
Assert.AreEqual(80, shape.BottomRightPoint.X);
Assert.AreEqual(40, shape.BottomRightPoint.Y);
shape.SetPoints(new Point(80, 80), new Point(30, 40));
Assert.AreEqual(80, shape.BottomRightPoint.X);
Assert.AreEqual(80, shape.BottomRightPoint.Y);
shape.SetPoints(new Point(20, 70), new Point(30, 40));
Assert.AreEqual(30, shape.BottomRightPoint.X);
Assert.AreEqual(70, shape.BottomRightPoint.Y);
}
public void TestTopLeftPoint()
{
Shape shape = new Shape();
shape.SetPoints(new Point(20, 30), new Point(30, 40));
Assert.AreEqual(20, shape.TopLeftPoint.X);
Assert.AreEqual(30, shape.TopLeftPoint.Y);
shape.SetPoints(new Point(80, 30), new Point(30, 40));
Assert.AreEqual(30, shape.TopLeftPoint.X);
Assert.AreEqual(30, shape.TopLeftPoint.Y);
shape.SetPoints(new Point(80, 80), new Point(30, 40));
Assert.AreEqual(30, shape.TopLeftPoint.X);
Assert.AreEqual(40, shape.TopLeftPoint.Y);
shape.SetPoints(new Point(20, 70), new Point(30, 40));
Assert.AreEqual(20, shape.TopLeftPoint.X);
Assert.AreEqual(40, shape.TopLeftPoint.Y);
}
public void TestSetPointsByList()
{
Shape shape = new Shape();
List<Point> points = new List<Point>();
points.Add(new Point(20, 30));
points.Add(new Point(30, 40));
shape.SetPoints(points);
Assert.AreEqual(20, shape.TopLeftPoint.X);
Assert.AreEqual(30, shape.TopLeftPoint.Y);
Assert.AreEqual(30, shape.BottomRightPoint.X);
Assert.AreEqual(40, shape.BottomRightPoint.Y);
}
//stop resize shape
public void EndCreateShape(Point point)
{
operationShape.SetPoints(startPoint, point);
Add(operationShape);
operationShape = null;
}
//constructor of paint model
public PaintModel()
{
Shapes = new List<Shape>();
operationShape = null;
}
//add a shape into shape list
public void Add(Shape shape)
{
Shapes.Add(shape);
ChangeModel();
}
private Point SetOperationShapePosition(Shape shape, Point point)
{
Point movePoint;
movePoint.X = point.X - startPoint.X;
movePoint.Y = point.Y - startPoint.Y;
Point newTopLeftPoint;
newTopLeftPoint.X = shapeOriginTopLeftPoint.X + movePoint.X;
newTopLeftPoint.Y = shapeOriginTopLeftPoint.Y + movePoint.Y;
Point newBottomRightPoint;
newBottomRightPoint.X = shapeOriginBottomRightPoint.X + movePoint.X;
newBottomRightPoint.Y = shapeOriginBottomRightPoint.Y + movePoint.Y;
shape.SetPoints(newTopLeftPoint, newBottomRightPoint);
return point;
}
//start create shape
public void StartCreateShape(ShapeEnum shapeEnum, Point point)
{
operationShape = ShapeFactory.GetShape(shapeEnum);
operationShape.SetPoints(point, point);
startPoint = point;
ChangeModel();
}
//select shape
public void SelecteShape(Point point)
{
foreach (Shape shape in Shapes)
{
if (shape.CheckIsSelected(point))
{
operationShape = shape;
break;
}
}
if (operationShape != null)
{
startPoint = point;
shapeOriginTopLeftPoint = operationShape.TopLeftPoint;
shapeOriginBottomRightPoint = operationShape.BottomRightPoint;
operationShape.IsSelected = true;
Remove(operationShape);
}
}
//remove a shape from shape list
public bool Remove(Shape shape)
{
bool removeResult = Shapes.Remove(shape);
ChangeModel();
return removeResult;
}
//stop moving selected shape
public void EndSelecteShape(Point point)
{
if (operationShape != null)
{
point = SetOperationShapePosition(operationShape, point);
operationShape.IsSelected = false;
Add(operationShape);
operationShape = null;
}
}
