/// <summary>
/// Mouse left button pressed event handler.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void MainCanvas_LeftButtonDown(object sender, MouseButtonEventArgs e)
{
Point mouseClick = Mouse.GetPosition(MainCanvas);
if (e.OriginalSource is Ellipse)
{
draggedPoint = e.OriginalSource as Ellipse;
draggedPoint.Fill = new SolidColorBrush(Colors.Red);
draggedPoint.Stroke = new SolidColorBrush(Colors.Red);
StatusBarTextBlock.Text = "Przenoszenie węzła...";
}
else if (e.OriginalSource is Canvas)
{
if (activeComponent != null)
{
if (activeComponent is LatexPolyline)
{
LatexPolyline poly = activeComponent as LatexPolyline;
LatexPoint point = new LatexPoint(mouseClick.X, mouseClick.Y, MainCanvas);
poly.AddPoint(point, MainCanvas);
poly.Draw();
}
else if (activeComponent is LatexPoint)
{
activeComponent = new LatexPoint(MainCanvas);
components.Add(activeComponent);
LatexPoint node = activeComponent as LatexPoint;
LatexPoint point = new LatexPoint(mouseClick.X, mouseClick.Y, MainCanvas);
node.SetPosition(point);
node.Draw();
}
}
}
}
private void MainCanvas_OnMouseMove(object sender, MouseEventArgs e)
{
if (draggedPoint != null)
{
activeComponent = FindActiveComponent(draggedPoint); // Select component which contain draggedPoint
Point mousePosition = Mouse.GetPosition(MainCanvas);
if (activeComponent is LatexPolyline)
{
LatexPolyline poly = activeComponent as LatexPolyline;
poly.UpdatePoint(draggedPoint, new LatexPoint(mousePosition.X, mousePosition.Y, MainCanvas));
poly.Draw();
}
if (activeComponent is LatexPoint)
{
LatexPoint point = activeComponent as LatexPoint;
point.UpdatePoint(new LatexPoint(mousePosition.X, mousePosition.Y, MainCanvas));
point.Draw();
}
}
}