private void OnPageLoaded(object sender, RoutedEventArgs e)
{
if (string.IsNullOrWhiteSpace(_svgFilePath) || !File.Exists(_svgFilePath))
{
zoomPanControl.ContentScale = 1.0;
if (zoomPanControl != null)
{
zoomPanControl.IsMouseWheelScrollingEnabled = true;
}
if (string.IsNullOrWhiteSpace(_svgFilePath))
{
this.UnloadDocument();
}
}
try
{
// DispatcherTimer setup
if (_dispatcherTimer == null)
{
_dispatcherTimer = new DispatcherTimer();
_dispatcherTimer.Tick += OnUpdateUITick;
_dispatcherTimer.Interval = new TimeSpan(0, 0, 1);
}
}
catch (Exception ex)
{
Trace.TraceError(ex.ToString());
}
if (zoomPanControl != null && zoomPanControl.ScrollOwner == null)
{
if (canvasScroller != null)
{
zoomPanControl.ScrollOwner = canvasScroller;
}
}
if (_dispatcherTimer != null)
{
_dispatcherTimer.Start();
}
if (_mainWindow != null)
{
_wndOverview = new ZoomPanOverviewWindow();
_wndOverview.Title = "Overview - Scrollable";
_wndOverview.PageMode = ZoomPanPageMode.Scrollable;
_wndOverview.Owner = _mainWindow;
_wndOverview.DataContext = this;
_wndOverview.Left = _mainWindow.Left + _mainWindow.ActualWidth;
_wndOverview.Top = _mainWindow.Top + _mainWindow.ActualHeight - _wndOverview.Height;
_wndOverview.Show();
}
}
private void OnPageUnloaded(object sender, RoutedEventArgs e)
{
if (_dispatcherTimer != null)
{
_dispatcherTimer.Stop();
}
if (_wndOverview != null)
{
_wndOverview.Close();
_wndOverview = null;
}
}