public Shape Draw(DrawPackage drawpackage)
{
Rectangle rectangle = new Rectangle();
rectangle.Height = drawpackage.height;
rectangle.Width = drawpackage.width;
rectangle.Name = "Rectangle";
rectangle.Tag = drawpackage.id;
Canvas.SetLeft(rectangle, drawpackage.x);
Canvas.SetTop(rectangle, drawpackage.y);
return(rectangle);
}
public Shape Draw(DrawPackage drawpackage)
{
Ellipse ellipse = new Ellipse();
ellipse.Height = drawpackage.height;
ellipse.Width = drawpackage.width;
ellipse.Name = "Ellipse";
ellipse.Tag = drawpackage.id;
Canvas.SetLeft(ellipse, drawpackage.x);
Canvas.SetTop(ellipse, drawpackage.y);
return(ellipse);
}
public override Shape Draw(DrawPackage drawpackage)
{
Shape shape = _strategy.Draw(drawpackage);
TextBlock element = new TextBlock();
element.Text = _ornament;
element.FontSize = 25;
element.Measure(new Size(Double.PositiveInfinity, Double.PositiveInfinity));
Canvas.SetLeft(element, drawpackage.x + drawpackage.width);
Canvas.SetTop(element, drawpackage.y + ((drawpackage.height - element.DesiredSize.Height) / 2));
drawpackage.paintSurface.Children.Add(element);
return(shape);
}
//Update after undo/redo or changes made
public void Update(bool change)
{
//true means that an actual change has been made and needs to be stored in the history
if (change)
{
timeindex++;;
if (history.timeline.Count >= timeindex)
{
history.timeline.RemoveRange(timeindex, history.timeline.Count - timeindex);
}
history.timeline.Add(new Snapshot(group.Copy(), itemcount));
}
//false means that the history needs to be read and written to the paintsurface
else
{
group = history.timeline[timeindex].composite.Copy();
itemcount = history.timeline[timeindex].itemcount;
paintSurface.Children.Clear();
List <Composite> tosurface = history.timeline[timeindex].composite.Concatenate();
foreach (Composite c in tosurface)
{
if (c.type != "Group")
{
Strategy strategy = DrawEllipse.getInstance();
if (c.type == "Rectangle")
{
strategy = DrawRectangle.getInstance();
}
foreach (Ornament o in c.ornaments)
{
switch (o.position)
{
case "top":
strategy = new UpperOrnamentDecorator(strategy, o.ornament);
break;
case "bottom":
strategy = new LowerOrnamentDecorator(strategy, o.ornament);
break;
case "left":
strategy = new LeftOrnamentDecorator(strategy, o.ornament);
break;
case "right":
strategy = new RightOrnamentDecorator(strategy, o.ornament);
break;
}
}
DrawPackage drawpackage = new DrawPackage();
drawpackage.x = c.x;
drawpackage.y = c.y;
drawpackage.height = c.height;
drawpackage.width = c.width;
drawpackage.id = c.id;
drawpackage.paintSurface = paintSurface;
Context context = new Context(strategy);
context.drawpackage = drawpackage;
Shape shape = context.Draw();
SolidColorBrush brush = new SolidColorBrush();
if (IsSelected(c))
{
brush.Color = Colors.DarkSlateGray;
}
else
{
brush.Color = Colors.SlateGray;
}
shape.Fill = brush;
shape.PointerPressed += mouseDown;
shape.PointerMoved += mouseMove;
shape.PointerReleased += mouseUp;
shape.PointerWheelChanged += mouseScroll;
paintSurface.Children.Add(shape);
}
else
{
Strategy strategy = DrawEllipse.getInstance();
foreach (Ornament o in c.ornaments)
{
switch (o.position)
{
case "top":
strategy = new UpperOrnamentDecorator(strategy, o.ornament);
break;
case "bottom":
strategy = new LowerOrnamentDecorator(strategy, o.ornament);
break;
case "left":
strategy = new LeftOrnamentDecorator(strategy, o.ornament);
break;
case "right":
strategy = new RightOrnamentDecorator(strategy, o.ornament);
break;
}
}
DrawPackage drawpackage = new DrawPackage();
XYXY xyxy = c.GetGroupXYHW();
drawpackage.x = xyxy.sx;
drawpackage.y = xyxy.sy;
drawpackage.height = xyxy.ey - xyxy.sy;
drawpackage.width = xyxy.ex - xyxy.sx;
drawpackage.id = c.id;
drawpackage.paintSurface = paintSurface;
Context context = new Context(strategy);
context.drawpackage = drawpackage;
Shape shape = context.Draw();
}
}
}
}
public abstract Shape Draw(DrawPackage drawpackage);
