private void Button_Click(object sender, RoutedEventArgs e)
{
using (DiagramRenderLock diagramLock = new DiagramRenderLock(MyDiagram))
{
DiagramNode node = new DiagramNode(MyDiagram);
node.Bounds = new Rect(50, 50, 50, 50);
node.Background = new SolidColorBrush(Colors.Azure);
node.RadiusX = 15;
node.RadiusY = 15;
node.Drawer = new RoundedRectangleItemDrawer();
node.Label.Text = "AAZzzффффф";
node.Label.Foreground = new SolidColorBrush(Colors.DarkRed);
node.Label.FontStyle = FontStyles.Italic;
DiagramNode node1 = new DiagramNode(MyDiagram);
node1.Bounds = new Rect(75, 200, 50, 50);
node1.Background = new SolidColorBrush(Colors.Violet);
node1.Label.Text = "wow";
LinearGradientBrush brush = new LinearGradientBrush();
brush.GradientStops.Add(new GradientStop(Colors.White, 0));
brush.GradientStops.Add(new GradientStop(Colors.Blue, 1));
brush.Opacity = 0.5;
node1.Label.Background = brush;
node1.Label.BorderPen = new Pen(Brushes.BlanchedAlmond, 2);
//DiagramEdge edge = new DiagramEdge(MyDiagram);
//edge.SourcePoint = new Point(100, 100);
//edge.DestinationPoint = new Point(150, 150);
//edge.Label.Text = "lololol";
//edge.Label.Background = brush;
//DiagramEdge edge1 = new DiagramEdge(MyDiagram);
//edge1.AnchoringMode = EdgeAnchoringMode.NodeToNode;
//edge1.SourceNode = node;
//edge1.DestinationNode = node1;
}
}
public void ZoomOut(Point point)
{
using (var diagramLock = new DiagramRenderLock(this))
{
double oldScale = Scale;
Rect oldViewport = Viewport;
ZoomOut();
DoOffsetAfterZoom(point);
}
}
public void ZoomIn(Point point)
{
using (var diagramLock = new DiagramRenderLock(this))
{
ZoomIn();
DoOffsetAfterZoom(point);
}
}
private void MoveViewport(Point mousePosition)
{
if (_rightButtonDownMousePosition == null)
return;
if (_diagram.Cursor != Cursors.SizeAll)
_diagram.Cursor = Cursors.SizeAll;
mousePosition.X += _diagram.XViewOffset - _baseXViewOffset;
mousePosition.Y += _diagram.YViewOffset - _baseYViewOffset;
using (DiagramRenderLock diagramLock = new DiagramRenderLock(_diagram))
{
_diagram.XViewOffset = _baseXViewOffset + mousePosition.X - _rightButtonDownMousePosition.Value.X;
_diagram.YViewOffset = _baseYViewOffset + mousePosition.Y - _rightButtonDownMousePosition.Value.Y;
}
}
protected void CheckOffsets(object sender, DoWorkEventArgs args)
{
BackgroundWorker worker = sender as BackgroundWorker;
if (worker == null)
return;
if (!_leftButtonDown)
return;
while (true)
{
if (worker.CancellationPending == true)
break;
_diagram.Dispatcher.Invoke((Action)(() =>
{
Rect viewport = _diagram.Viewport;
Point currentPoint = _currentMousePosition.Value;
Point currentScreenPoint = currentPoint.ToDisplayPoint(_diagram.Offset, _diagram.Scale);
bool moveUp = false;
bool moveDown = false;
bool moveLeft = false;
bool moveRight = false;
double offsetX = viewport.Width * 0.05;
double offsetY = viewport.Height * 0.05;
if (currentPoint.X - viewport.Left < offsetX)
moveLeft = true;
if (viewport.Right - currentPoint.X < offsetX)
moveRight = true;
if (currentPoint.Y - viewport.Top < offsetY)
moveUp = true;
if (viewport.Bottom - currentPoint.Y < offsetY)
moveDown = true;
if (moveLeft || moveRight || moveUp || moveDown)
{
using (DiagramRenderLock locker = new DiagramRenderLock(_diagram))
{
if (moveUp)
_diagram.YViewOffset += offsetY;
if (moveDown)
_diagram.YViewOffset -= offsetY;
if (moveLeft)
_diagram.XViewOffset += offsetX;
if (moveRight)
_diagram.XViewOffset -= offsetX;
}
ProcessMouseMove(currentScreenPoint.ToViewPoint(_diagram.Offset, _diagram.Scale), false);
}
}));
Thread.Sleep(100);
}
}
