private void Change_ViewPort(MainWindow.ViewPort delta)
{
foreach (var shape in MainWindow.Shapes)
{
shape.StartPoint = new Point
{
X = shape.StartPoint.X * delta.Scale + delta.X,
Y = shape.StartPoint.Y * delta.Scale + delta.Y
};
shape.EndPoint = new Point
{
X = shape.EndPoint.X * delta.Scale + delta.X,
Y = shape.EndPoint.Y * delta.Scale + delta.Y
};
shape.Thickness *= delta.Scale;
}
}
private void Right_Click(Point startPoint)
{
if (MainWindow.viewPort.Scale / 2 < 0.25)
{
return;
}
MainWindow.viewPort.Scale /= 2;
var delta = new MainWindow.ViewPort
{
X = startPoint.X - MainWindow.Canv.ActualWidth / 4,
Y = startPoint.Y - MainWindow.Canv.ActualHeight / 4,
Scale = 0.5
};
delta.X = Math.Abs(delta.X);
delta.Y = Math.Abs(delta.Y);
Change_ViewPort(delta);
}
private void Left_Click(Point startPoint)
{
if (MainWindow.viewPort.Scale * 2 > 16)
{
return;
}
MainWindow.viewPort.Scale *= 2;
var delta = new MainWindow.ViewPort
{
X = startPoint.X - MainWindow.Canv.ActualWidth / 16,
Y = startPoint.Y - MainWindow.Canv.ActualHeight / 16,
Scale = 2
};
delta.X = -Math.Abs(delta.X);
delta.Y = -Math.Abs(delta.Y);
Change_ViewPort(delta);
}
