/// <summary>
/// Does cleanup when the main widget is destroyed
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void _mainWidget_Destroyed(object sender, EventArgs e)
{
if (numberLockedCols > 0)
{
gridview.Vadjustment.ValueChanged -= Gridview_Vadjustment_Changed;
gridview.Selection.Changed -= Gridview_CursorChanged;
fixedcolview.Vadjustment.ValueChanged -= Fixedcolview_Vadjustment_Changed1;
fixedcolview.Selection.Changed -= Fixedcolview_CursorChanged;
}
// It's good practice to disconnect the event handlers, as it makes memory leaks
// less likely. However, we may not "own" the event handlers, so how do we
// know what to disconnect?
// We can do this via reflection. Here's how it currently can be done in Gtk#.
// Windows.Forms would do it differently.
// This may break if Gtk# changes the way they implement event handlers.
ClearGridColumns();
gridmodel.Dispose();
if (imagePixbuf != null)
{
imagePixbuf.Dispose();
}
if (image1 != null)
{
image1.Dispose();
}
if (table != null)
{
table.Dispose();
}
_mainWidget.Destroyed -= _mainWidget_Destroyed;
_owner = null;
}
public override void loadFileCharacteristics()
{
// We used path but in a wrong way...
Path = System.IO.Path.GetFullPath(Path);
Gtk.Image image = new Gtk.Image(Path);
DimensionsY = image.Pixbuf.Height;
DimensionsX = image.Pixbuf.Width;
Title = System.IO.Path.GetFileName(Path);
Author = "";
FileStream oFileStream;
oFileStream = new FileStream(Path, FileMode.Open, FileAccess.Read);
Length = DimensionsX.ToString() + "x" + DimensionsY.ToString();
image.Dispose();
image = null;
}
/// <summary>
/// Called when the main widget is destroyed.
/// Detaches event handlers.
/// </summary>
/// <param name="sender">Sender object.</param>
/// <param name="args">Event data.</param>
private void OnMainWidgetDestroyed(object sender, EventArgs args)
{
try
{
image.Drawn -= OnImageExposed;
image.Dispose();
(PropertiesView as PropertyView).Dispose();
container.ButtonPressEvent -= OnButtonPress;
container.ButtonReleaseEvent -= OnButtonRelease;
container.ScrollEvent -= OnMouseScroll;
container.Destroyed -= OnMainWidgetDestroyed;
}
catch (Exception err)
{
ShowError(err);
}
}
