public CanvasDrawerDrawingState(CanvasDrawer canvasDrawerData, Point currentDrawingShapeDrawingStartingPointData)
{
if (canvasDrawerData == null)
{
throw new ArgumentNullException(Definitions.ERROR_CANVAS_DRAWER_IS_NULL);
}
if (currentDrawingShapeDrawingStartingPointData == null)
{
throw new ArgumentNullException(ERROR_CURRENT_DRAWING_SHAPE_DRAWING_STARTING_POINT_IS_NULL);
}
_canvasDrawer = canvasDrawerData;
_currentDrawingShapeDrawingStartingPoint = currentDrawingShapeDrawingStartingPointData;
_currentDrawingShapeHintShapeDrawer = ShapeDrawerFactory.CreateShapeDrawer(_currentDrawingShapeDrawingStartingPoint, _currentDrawingShapeDrawingStartingPoint, _canvasDrawer.CurrentShapeDrawerType);
}
public void TestCreateShapeDrawer()
{
const string SHAPE_DRAWER_MEMBER_VARIABLE_NAME_DRAWING_STARTING_POINT = "_drawingStartingPoint";
const string SHAPE_DRAWER_MEMBER_VARIABLE_NAME_DRAWING_ENDING_POINT = "_drawingEndingPoint";
Assert.ThrowsException <ArgumentException>(() => ShapeDrawerFactory.CreateShapeDrawer(new Point(), new Point(), ShapeDrawerType.None));
Assert.ThrowsException <ArgumentException>(() => ShapeDrawerFactory.CreateShapeDrawer(new Point(), new Point(), ( ShapeDrawerType )(-1)));
Assert.ThrowsException <ArgumentException>(() => ShapeDrawerFactory.CreateShapeDrawer(new Point(), new Point(), ( ShapeDrawerType )3));
var drawingStartingPoint = new Point();
var drawingEndingPoint = new Point();
// Create line drawer.
ShapeDrawer expectedShapeDrawer = ShapeDrawerFactory.CreateShapeDrawer(drawingStartingPoint, drawingEndingPoint, ShapeDrawerType.Line);
var target = new PrivateObject(expectedShapeDrawer);
Assert.AreSame(target.GetFieldOrProperty(SHAPE_DRAWER_MEMBER_VARIABLE_NAME_DRAWING_STARTING_POINT), drawingStartingPoint);
Assert.AreSame(target.GetFieldOrProperty(SHAPE_DRAWER_MEMBER_VARIABLE_NAME_DRAWING_ENDING_POINT), drawingEndingPoint);
Assert.IsInstanceOfType(expectedShapeDrawer, typeof(LineDrawer));
// Create rectangle drawer.
expectedShapeDrawer = ShapeDrawerFactory.CreateShapeDrawer(drawingStartingPoint, drawingEndingPoint, ShapeDrawerType.Rectangle);
target = new PrivateObject(expectedShapeDrawer);
Assert.AreSame(target.GetFieldOrProperty(SHAPE_DRAWER_MEMBER_VARIABLE_NAME_DRAWING_STARTING_POINT), drawingStartingPoint);
Assert.AreSame(target.GetFieldOrProperty(SHAPE_DRAWER_MEMBER_VARIABLE_NAME_DRAWING_ENDING_POINT), drawingEndingPoint);
Assert.IsInstanceOfType(expectedShapeDrawer, typeof(RectangleDrawer));
}