public override bool Start(IMouseInformation mouseInformation)
{
if (!Enabled || !Visible)
{
return(false);
}
base.Start(mouseInformation);
try
{
if (_view != null)
{
throw new InvalidOperationException("A magnification component is already active.");
}
var view = CreateView();
_tileLocation = mouseInformation.Location;
InitializeMagnificationImage();
view.Open(SelectedPresentationImage, mouseInformation.Location, RenderImage);
_view = view;
return(true);
}
catch (Exception e)
{
ExceptionHandler.Report(e, Context.DesktopWindow);
return(false);
}
}
public override bool Start(IMouseInformation mouseInformation)
{
if (!Enabled)
{
return(false);
}
base.Start(mouseInformation);
try
{
if (_view != null)
{
throw new InvalidOperationException("A magnification component is already active.");
}
MagnificationViewExtensionPoint extensionPoint = new MagnificationViewExtensionPoint();
IMagnificationView view = (IMagnificationView)ViewFactory.CreateView(extensionPoint);
view.Open(ToolSettings.Default.MagnificationFactor,
(PresentationImage)SelectedPresentationImage, mouseInformation.Location);
_view = view;
return(true);
}
catch (Exception e)
{
ExceptionHandler.Report(e, Context.DesktopWindow);
return(false);
}
}
public override void Cancel()
{
if (_view != null)
{
_view.Close();
_view = null;
}
}
public override void Cancel()
{
if (_view != null)
{
_view.Close();
_view = null;
}
DisposeMagnificationImage();
}
protected override void Dispose(bool disposing)
{
ToolSettings.DefaultInstance.PropertyChanged -= OnMagnificationSettingChanged;
var view = _view as IDisposable;
if (view != null)
{
view.Dispose();
_view = null;
}
base.Dispose(disposing);
}
