| public SetBounds ( float x, float y, float width, float height ) : bool | ||
| x | float | The new x coordinate of the bounds. |
| y | float | The new y coordinate of the bounds. |
| width | float | The new width of the bounds. |
| height | float | The new height of the bounds. |
| return | bool | |
public virtual bool SetBounds(float x, float y, float width, float height) {
if (bounds.X != x || bounds.Y != y || bounds.Width != width || bounds.Height != height) {
bounds.X = x;
bounds.Y = y;
bounds.Width = width;
bounds.Height = height;
InternalUpdateBounds(x, y, width, height);
InvalidatePaint();
SignalBoundsChanged();
// Don't put any invalidating code here or else nodes with volatile bounds will
// create a soft infinite loop (calling Control.BeginInvoke()) when they validate
// their bounds.
return true;
}
return false;
}
public override void Initialize() {
PRoot root = Canvas.Root;
PCamera camera = Canvas.Camera;
//PLayer gridLayer = new GridLayer();
// replace standard layer with grid layer.
root.RemoveChild(camera.GetLayer(0));
camera.RemoveLayer(0);
root.AddChild(gridLayer);
camera.AddLayer(gridLayer);
// add constraints so that grid layers bounds always match cameras view bounds. This makes
// it look like an infinite grid.
camera.BoundsChanged += new PPropertyEventHandler(camera_BoundsChanged);
camera.ViewTransformChanged += new PPropertyEventHandler(camera_ViewTransformChanged);
gridLayer.Bounds = camera.ViewBounds;
PNode n = new PNode();
n.Brush = Brushes.Blue;
n.SetBounds(0, 0, 100, 80);
Canvas.Layer.AddChild(n);
Canvas.RemoveInputEventListener(Canvas.PanEventHandler);
Canvas.AddInputEventListener(new GridDragHandler(Canvas));
}
