/// <summary>
/// Reduces digraph image by moving vertices
/// </summary>
private void ReduceButton_Click(object sender, EventArgs e)
{
var command = new ResizeDigraphCommand(digraph, 0.9);
commandsManager.Execute(command);
UpdateImage();
}
/// <summary>
/// Executes commands to move digraph itself
/// </summary>
private void MainWindow_KeyUp(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.ControlKey)
{
isControlPressed = false;
}
if (e.Modifiers != Keys.Control && sender != MouseWheelTimer)
{
return;
}
if (e.KeyCode == Keys.Up || e.KeyCode == Keys.Down ||
e.KeyCode == Keys.Right || e.KeyCode == Keys.Left)
{
if (xCoefficient == 0 && yCoefficient == 0)
{
return;
}
var command = new MoveDigraphCommand(digraph, xCoefficient, yCoefficient);
commandsManager.Execute(command);
xCoefficient = yCoefficient = 0;
}
if (e.KeyCode == Keys.OemMinus || e.KeyCode == Keys.Oemplus)
{
var command = new ResizeDigraphCommand(digraph, resizeCoefficient);
commandsManager.Execute(command);
resizeCoefficient = 1;
}
}