protected void ClearSelection()
{
if (TSFrame != null)
{
if (TSFrame.Parent is Canvas)
{
(TSFrame.Parent as Canvas).Children.Remove(TSFrame);
TSFrame = null;
}
DraggingPoint = null;
if (FrameChanged != null)
{
FrameChanged(null);
}
}
if (SelectionRect != null)
{
if (SelectionRect.Parent is Canvas)
{
(SelectionRect.Parent as Canvas).Children.Remove(SelectionRect);
SelectionRect = null;
}
}
}
public void SelectObjects(Canvas drawingCanvas, params DDObject[] targets)
{
if (drawingCanvas == null)
{
return;
}
ClearSelection();
if ((targets != null) && (targets.Length > 0) && (targets[0] != null))
{
TSFrame = new DDTranslateAndScaleFrame(targets);
drawingCanvas.Children.Add(TSFrame);
if (FrameChanged != null)
{
FrameChanged(TSFrame);
}
}
}
private void xamlButton2_Click(object sender, RoutedEventArgs e)
{
xamlCanvas.Children.Clear();
Random rand = new Random();
int pCount = rand.Next(30) + 10;
DDPolygon[] polygons = new DDPolygon[pCount];
for (int i = 0; i < pCount; i++)
{
polygons[i] = new DDPolygon();
int nCount = rand.Next(10) + 5;
Point pos = new Point(rand.Next(800), rand.Next(800));
Size size = new Size(rand.Next(600) + 50, rand.Next(600) + 50);
for (int j = 0; j < nCount; j++)
{
DDNodeWithHandles node = new DDNodeWithHandles(xamlCanvas)
{
Point = new Point(
pos.X + rand.Next((int)size.Width),
pos.Y + rand.Next((int)size.Height))
};
polygons[i].Nodes.Add(node);
}
polygons[i].Stroke = new SolidColorBrush(Color.FromArgb((byte)(200 + rand.Next(56)),
(byte)rand.Next(256), (byte)rand.Next(256), (byte)rand.Next(256)));
polygons[i].Fill = new SolidColorBrush(Color.FromArgb((byte)(200 + rand.Next(56)),
(byte)rand.Next(256), (byte)rand.Next(256), (byte)rand.Next(256)));
polygons[i].StrokeThickness = rand.Next(6);
xamlCanvas.Children.Add(polygons[i]);
}
DDTranslateAndScaleFrame manipulationFrame = new DDTranslateAndScaleFrame(polygons);
xamlCanvas.Children.Add(manipulationFrame);
}
private void xamlButton3_Click(object sender, RoutedEventArgs e)
{
List <DDObject> objects = new List <DDObject>();
foreach (UIElement el in xamlCanvas.Children)
{
if (el is DDObject)
{
objects.Add(el as DDObject);
}
}
if (manipulationFrame == null)
{
manipulationFrame = new DDTranslateAndScaleFrame(objects.ToArray());
xamlCanvas.Children.Add(manipulationFrame);
}
else
{
xamlCanvas.Children.Remove(manipulationFrame);
manipulationFrame = null;
}
}
protected void TSFrameChangedHandler(DDTranslateAndScaleFrame refFrame)
{
if (refFrame == null)
{
xamlExpanderSelectionLayout.Visibility = Visibility.Collapsed;
BindingOperations.ClearAllBindings(xamlLayoutX);
BindingOperations.ClearAllBindings(xamlLayoutY);
BindingOperations.ClearAllBindings(xamlLayoutWidth);
BindingOperations.ClearAllBindings(xamlLayoutHeight);
}
else
{
xamlExpanderSelectionLayout.Visibility = Visibility.Visible;
xamlLayoutX.SetBinding(DDNumericUpDown.ValueProperty, new Binding("X")
{
Source = refFrame, Mode = BindingMode.TwoWay
});
xamlLayoutY.SetBinding(DDNumericUpDown.ValueProperty, new Binding("Y")
{
Source = refFrame, Mode = BindingMode.TwoWay
});
xamlLayoutWidth.SetBinding(DDNumericUpDown.ValueProperty, new Binding("Width")
{
Source = refFrame, Mode = BindingMode.TwoWay
});
xamlLayoutHeight.SetBinding(DDNumericUpDown.ValueProperty, new Binding("Height")
{
Source = refFrame, Mode = BindingMode.TwoWay
});
}
if ((refFrame != null) && (refFrame.Targets.Count == 1))
{
if (!(refFrame.Targets[0] is DDPolyline))
{
xamlExpanderFill.Visibility = Visibility.Visible;
}
xamlExpanderStroke.Visibility = Visibility.Visible;
if (refFrame.Targets[0] is DDRectangle)
{
xamlExpanderRectangle.Visibility = Visibility.Visible;
}
if (refFrame.Targets[0] is DDPolygon)
{
_convertTarget = refFrame.Targets[0] as DDNodeObject;
xamlExpanderPolygon.Visibility = Visibility.Visible;
}
if (refFrame.Targets[0] is DDPolyline)
{
_convertTarget = refFrame.Targets[0] as DDNodeObject;
xamlExpanderPolyline.Visibility = Visibility.Visible;
}
BindFillAndStrokeObject(refFrame.Targets[0]);
}
else
{
_convertTarget = null;
xamlExpanderFill.Visibility = Visibility.Collapsed;
xamlExpanderStroke.Visibility = Visibility.Collapsed;
xamlExpanderRectangle.Visibility = Visibility.Collapsed;
xamlExpanderPolygon.Visibility = Visibility.Collapsed;
xamlExpanderPolyline.Visibility = Visibility.Collapsed;
BindFillAndStrokeObject(null);
}
_activeTSFrame = refFrame;
TryAddUndoStep();
}
