public void Edit()
{
_layoutPreview = null;
if (DataContext is GridLayoutModel)
{
_editor = new GridEditor();
}
else if (DataContext is CanvasLayoutModel)
{
_editor = new CanvasEditor();
}
Content = _editor;
}
public Int32Rect[] GetZoneRects()
{
// TODO: the ideal here is that the ArrangeRects logic is entirely inside the model, so we don't have to walk the UIElement children to get the rect info
Panel previewPanel = null;
if (_editor != null)
{
GridEditor gridEditor = _editor as GridEditor;
if (gridEditor != null)
{
previewPanel = gridEditor.PreviewPanel;
}
else
{
//CanvasEditor
previewPanel = ((CanvasEditor)_editor).Preview;
}
}
else
{
previewPanel = _layoutPreview.PreviewPanel;
}
var count = previewPanel.Children.Count;
Int32Rect[] zones = new Int32Rect[count];
int i = 0;
foreach (FrameworkElement child in previewPanel.Children)
{
Point topLeft = child.TransformToAncestor(previewPanel).Transform(new Point());
var right = topLeft.X + child.ActualWidth;
var bottom = topLeft.Y + child.ActualHeight;
zones[i].X = (int)topLeft.X;
zones[i].Y = (int)topLeft.Y;
zones[i].Width = (int)child.ActualWidth;
zones[i].Height = (int)child.ActualHeight;
i++;
}
return(zones);
}