private IEnumerable <LoadedShape> ReadShapes(string filePath)
{
using (XmlReader xmlReader = XmlReader.Create(filePath, new XmlReaderSettings {
IgnoreWhitespace = true
}))
{
xmlReader.ReadToFollowing("Shapes");
XmlReader innerReader = xmlReader.ReadSubtree();
// Read past the Shapes element so that we get to it's child elements.
innerReader.Read();
List <LoadedShape> loadedShapes = new List <LoadedShape>();
while (innerReader.Read())
{
if (innerReader.NodeType != XmlNodeType.EndElement)
{
// Reached a shape child of the Shapes element.
string shapeType = innerReader.LocalName;
Dictionary <string, string> attributes = GetAllAttributes(innerReader);
LoadedShape loadedShape = new LoadedShape(shapeType, attributes);
loadedShapes.Add(loadedShape);
}
}
return(loadedShapes);
}
}
private Pen CreatePen(LoadedShape shape)
{
// Mixing up colour vs color spellings here. A bit annoying.
string colourName = shape.Attributes["Colour"];
Color colour = Color.FromName(colourName);
return(new Pen(colour));
}
private Rectangle ExtractRectangleDataFromLoadedShape(LoadedShape shape)
{
int x = Convert.ToInt32(shape.Attributes["X"]);
int y = Convert.ToInt32(shape.Attributes["Y"]);
int width = Convert.ToInt32(shape.Attributes["W"]);
int height = Convert.ToInt32(shape.Attributes["H"]);
return(new Rectangle(x, y, width, height));
}
private DrawableLine CreateDrawableLine(LoadedShape loadedLine, Pen pen)
{
// Get the start and end coords from the value loaded from the file.
int startX = Convert.ToInt32(loadedLine.Attributes["StartX"]);
int startY = Convert.ToInt32(loadedLine.Attributes["StartY"]);
int endX = Convert.ToInt32(loadedLine.Attributes["EndX"]);
int endY = Convert.ToInt32(loadedLine.Attributes["EndY"]);
// Create Points from these values.
Point startPoint = new Point(startX, startY);
Point endPoint = new Point(endX, endY);
return(new DrawableLine(pen, startPoint, endPoint));
}
private DrawableEllipse CreateDrawableEllipse(LoadedShape loadedEllipse, Pen pen)
{
Rectangle boundingRectangle = ExtractRectangleDataFromLoadedShape(loadedEllipse);
return(new DrawableEllipse(pen, boundingRectangle));;
}
private DrawableRectangle CreateDrawableRectangle(LoadedShape loadedRectangle, Pen pen)
{
Rectangle rectangle = ExtractRectangleDataFromLoadedShape(loadedRectangle);
return(new DrawableRectangle(pen, rectangle));
}