/// <summary>
/// Moves digraph image according to mouse wheel scrolling
/// </summary>
private void MainWindow_MouseWheel(object sender, MouseEventArgs e)
{
MouseWheelTimer.Start();
if (isControlPressed)
{
if (e.Delta > 0)
{
GraphBuilder_KeyDown(e, new KeyEventArgs(Keys.Oemplus));
}
else if (e.Delta < 0)
{
GraphBuilder_KeyDown(e, new KeyEventArgs(Keys.OemMinus));
}
}
else
{
if (e.Delta > 0)
{
GraphBuilder_KeyDown(e, new KeyEventArgs(Keys.Up));
}
else if (e.Delta < 0)
{
GraphBuilder_KeyDown(e, new KeyEventArgs(Keys.Down));
}
}
}
/// <summary>
/// Changes vertices radius
/// </summary>
private void RadiusTrackBar_ValueChanged(object sender, EventArgs e)
{
graphDrawing.R = RadiusTrackBar.Value;
RadiusValueLabel.Text = @"R = " + RadiusTrackBar.Value;
if (!isCommand)
{
radiusChanged = true;
MouseWheelTimer.Start();
}
else
{
radius = RadiusTrackBar.Value;
}
}
/// <summary>
/// Moves digraph itself according to mouse wheel scrolling
/// </summary>
private void WheelStopped(object sender, EventArgs e)
{
MouseWheelTimer.Stop();
if (xCoefficient != 0 || yCoefficient != 0)
{
MainWindow_KeyUp(MouseWheelTimer, new KeyEventArgs(Keys.Up));
}
if (Math.Abs(resizeCoefficient - 1) > 0)
{
MainWindow_KeyUp(MouseWheelTimer, new KeyEventArgs(Keys.OemMinus));
}
if (!radiusChanged)
{
return;
}
radiusChanged = false;
var command = new ChangeRadiusCommand(graphDrawing, radius, graphDrawing.R);
command.Executed += (s, ea) => RadiusTrackBar.Value = (int)s;
commandsManager.Execute(command);
radius = graphDrawing.R;
}
