/// <summary>
/// Restores the position of a form from the user settings. Does
/// nothing if there is no entry for the form in the settings, or the
/// setting would be invisible on the current display configuration.
/// </summary>
protected virtual void RestorePosition()
{
if (!_needsPositionRestore)
{
return;
}
if (WindowState == FormWindowState.Minimized)
{
// TODO: do we still need to assert when restored it is shown on the correct monitor?
return;
}
var position = _windowPositionManager.LoadPosition(this);
if (position is null)
{
return;
}
_needsPositionRestore = false;
var workingArea = _getScreensWorkingArea();
if (!workingArea.Any(screen => screen.IntersectsWith(position.Rect)))
{
if (position.State == FormWindowState.Maximized)
{
WindowState = FormWindowState.Maximized;
}
return;
}
SuspendLayout();
var windowCentred = StartPosition == FormStartPosition.CenterParent;
StartPosition = FormStartPosition.Manual;
if (FormBorderStyle == FormBorderStyle.Sizable ||
FormBorderStyle == FormBorderStyle.SizableToolWindow)
{
Size = DpiUtil.Scale(position.Rect.Size, originalDpi: position.DeviceDpi);
}
if (Owner is null || !windowCentred)
{
var location = DpiUtil.Scale(position.Rect.Location, originalDpi: position.DeviceDpi);
if (WindowPositionManager.FindWindowScreen(location, workingArea) is Rectangle rect)
{
location.Y = rect.Y;
}
DesktopLocation = location;
}
public void RestorePosition_should_not_restore_position_if_not_persisted()
{
using var form = new MockForm(true)
{
Location = new Point(-100, -100),
Size = new Size(500, 500)
};
GitExtensionsFormTestAccessor testAccessor = new(form);
testAccessor.GetScreensWorkingArea = () => throw new InvalidOperationException();
testAccessor.WindowPositionManager = _windowPositionManager;
_windowPositionManager.LoadPosition(form).Returns(x => null);
form.InvokeRestorePosition();
form.Location.Should().Be(new Point(-100, -100));
form.Size.Should().Be(new Size(500, 500));
}
