public void removeConnectionDrawing(ConnectionDrawing connectionDrawing)
{
connectionDrawings.Remove(connectionDrawing);
}
public void mouseMove(object sender, MouseEventArgs e)
{
if (mainForm.middleMouseDown && mainForm.toolPanSelected || mainForm.leftMouseDown && mainForm.toolPanSelected)
{
if (lastMousePoint != Point.Empty)
{
pan(new Point(lastMousePoint.X - e.X, lastMousePoint.Y - e.Y));
}
lastMousePoint = new Point(e.X, e.Y);
panelCanvas.Invalidate();
}
else
{
lastMousePoint = Point.Empty;
}
if (mainForm.nodeBeingDragged != null)
{
itemPreviewRectangle.X = e.X;
itemPreviewRectangle.Y = e.Y;
Point absoluteCoordinates = viewport.getAbsoluteCoordinates(new Point(e.X, e.Y));
Rectangle absolutePreviewRectangle = new Rectangle(absoluteCoordinates.X, absoluteCoordinates.Y, 100, 100);
if (viewport.checkCollision(absolutePreviewRectangle))
{
itemPreviewBrush.Color = Color.FromArgb(128, 255, 0, 0);
}
else
{
itemPreviewBrush.Color = Color.FromArgb(32, 127, 127, 127);
}
panelCanvas.Invalidate();
}
if (!(sender is ItemDrawing))
{
ConnectionDrawing newClosestConnectionDrawing = null;
int? closestConnectionDrawingDistance = null;
foreach (ConnectionDrawing connectionDrawing in connectionDrawings)
{
int distance = connectionDrawing.distanceToPoint(new Point(e.X, e.Y));
if (closestConnectionDrawingDistance == null || distance < closestConnectionDrawingDistance)
{
closestConnectionDrawingDistance = distance;
newClosestConnectionDrawing = connectionDrawing;
}
}
int threshold = viewport.getPixelLength(18);
bool refresh = false;
if (newClosestConnectionDrawing != null && closestConnectionDrawingDistance < threshold)
{
if (!newClosestConnectionDrawing.lineHovered)
{
refresh = true;
if (selectedConnectionDrawing != null && selectedConnectionDrawing != newClosestConnectionDrawing)
{
selectedConnectionDrawing.lineHovered = false;
}
newClosestConnectionDrawing.lineHovered = true;
selectedConnectionDrawing = newClosestConnectionDrawing;
}
}
else
{
if (selectedConnectionDrawing != null && selectedConnectionDrawing.lineHovered)
{
refresh = true;
selectedConnectionDrawing.lineHovered = false;
selectedConnectionDrawing = null;
}
}
if (refresh)
{
if (newClosestConnectionDrawing != null)
{
newClosestConnectionDrawing.refresh();
}
panelCanvas.Refresh();
}
}
}
private void addConnectionDrawing(ConnectionDrawing connectionDrawing)
{
connectionDrawings.Add(connectionDrawing);
}
private void refreshConnections()
{
List<Connection> connectionsThatShouldBeDrawn = viewport.getVisibleConnections();
List<ConnectionDrawing> connectionsThatShouldBeRemoved = new List<ConnectionDrawing>();
Console.WriteLine(connectionsThatShouldBeDrawn.Count.ToString());
foreach (Connection connectionThatShouldBeDrawn in connectionsThatShouldBeDrawn)
{
ConnectionDrawing connectionDrawing = getConnectionDrawing(connectionThatShouldBeDrawn);
if (connectionDrawing == null)
{
connectionDrawing = new ConnectionDrawing(connectionThatShouldBeDrawn, viewport, mainForm);
connectionDrawings.Add(connectionDrawing);
}
connectionDrawing.IsVisible = true;
}
foreach (ConnectionDrawing connectionDrawing in connectionDrawings)
{
if (connectionDrawing.IsVisible && !connectionsThatShouldBeDrawn.Contains(connectionDrawing.Connection))
{
connectionsThatShouldBeRemoved.Add(connectionDrawing);
//connectionDrawing.IsVisible = false;
}
else
{
connectionDrawing.refresh();
}
}
foreach (ConnectionDrawing connectionThatShouldBeRemoved in connectionsThatShouldBeRemoved)
{
connectionThatShouldBeRemoved.Disconnect();
connectionDrawings.Remove(connectionThatShouldBeRemoved);
}
}