private void VisitGroupRecurs(IShape shape, int x, int y, double ratio)
{
SolidBrush b;
if (shape.GetType() == typeof(Rectangle))
{
var rect = (Rectangle)shape;
b = new SolidBrush(rect.Color);
_drawingRect = new System.Drawing.Rectangle(rect.X, rect.Y, rect.Width, rect.Height);
_drawingRect = ReplaceShapeInGroup(_drawingRect, ratio, x, y);
g.FillRectangle(b, _drawingRect);
}
else if (shape.GetType() == typeof(Circle))
{
var circle = (Circle)shape;
b = new SolidBrush(circle.Color);
_drawingRect = new System.Drawing.Rectangle(circle.X, circle.Y, circle.Diameter, circle.Diameter);
_drawingRect = ReplaceShapeInGroup(_drawingRect, ratio, x, y);
g.FillEllipse(b, _drawingRect.X, _drawingRect.Y, _drawingRect.Width, _drawingRect.Height);
}
else if (shape.GetType() == typeof(GroupShapes))
{
foreach (var child in ((GroupShapes)shape).Children)
{
VisitGroupRecurs(child, x, y, ratio);
}
}
}
public void VisitCircle(Circle circle)
{
var b = new SolidBrush(circle.Color);
_drawingRect = new System.Drawing.Rectangle(circle.X, circle.Y, circle.Diameter, circle.Diameter);
_drawingRect = ReplaceShape(_drawingRect);
g.FillEllipse(b, _drawingRect.X, _drawingRect.Y, _drawingRect.Width, _drawingRect.Height);
}
public void VisitRectangle(Rectangle rect)
{
var b = new SolidBrush(rect.Color);
_drawingRect = new System.Drawing.Rectangle(rect.X, rect.Y, rect.Width, rect.Height);
_drawingRect = ReplaceShape(_drawingRect);
g.FillRectangle(b, _drawingRect);
}
private System.Drawing.Rectangle ReplaceShape(System.Drawing.Rectangle drawingRect)
{
while (drawingRect.Width >= _panelWidth || drawingRect.Height >= _panelHeight)
{
drawingRect.Width /= 2;
drawingRect.Height /= 2;
}
drawingRect.X = _panelWidth / 2 - drawingRect.Width / 2;
drawingRect.Y = _panelHeight / 2 - drawingRect.Height / 2;
return(drawingRect);
}
private System.Drawing.Rectangle ReplaceShapeInGroup(System.Drawing.Rectangle drawingRect, double ratio, int xMin, int yMin)
{
var newX = (ratio * (drawingRect.X - xMin));
var newY = (ratio * (drawingRect.Y - yMin));
var newWidth = (ratio * drawingRect.Width);
var newHeight = (ratio * drawingRect.Height);
drawingRect.X = (int)newX;
drawingRect.Y = (int)newY;
drawingRect.Width = (int)newWidth;
drawingRect.Height = (int)newHeight;
return(drawingRect);
}
