private void UpdateButtonsEnabledStatus()
{
UIOutputItem source = SelectedSource;
UIInputItem target = SelectedTarget;
List <UIExchangeItem> sources = _treeSource.GetCheckedExchangeItems();
bool checkedSourceAndTarget = source != null && target != null;
// Make it look as if inactive rather than do it as
// tooltips will not work on inactive buttons
btnLinkAdd.ForeColor = checkedSourceAndTarget
? SystemColors.ActiveCaptionText : SystemColors.InactiveCaptionText;
btnLinkRemove.ForeColor = listLinks.SelectedItem != null
? SystemColors.ActiveCaptionText : SystemColors.InactiveCaptionText;
btnViewer.ForeColor = checkedSourceAndTarget
? SystemColors.ActiveCaptionText : SystemColors.InactiveCaptionText;
btnAddSources.ForeColor = checkedSourceAndTarget
? SystemColors.ActiveCaptionText : SystemColors.InactiveCaptionText;
btnArgEdit.ForeColor = source != null && source.IExchangeItem is IAdaptedOutput
? SystemColors.ActiveCaptionText : SystemColors.InactiveCaptionText;
}
private void OnLinkAdd(object sender, System.EventArgs e)
{
if (_treeSource.GetCheckedExchangeItems().Count < 1 ||
_treeTarget.GetCheckedExchangeItems().Count < 1)
{
return;
}
List <UIExchangeItem> providers = _treeSource.GetCheckedExchangeItems();
List <UIExchangeItem> acceptors = _treeTarget.GetCheckedExchangeItems();
if (providers.Count == 0)
{
// ADH: should realy disable apply button and provide tooltip as to why
MessageBox.Show("No Output Exchange Item selected.", "Error", MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
return;
}
if (acceptors.Count == 0)
{
// ADH: should realy disable apply button and provide tooltip as to why
MessageBox.Show("No Input Exchange Item selected.", "Error", MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
return;
}
// Are the connection dialogs check boxes screwed up?
Debug.Assert(acceptors.Count == 1);
_uilink.Links.Add(new UIConnection.Link(
(UIOutputItem)providers[providers.Count - 1], (UIInputItem)acceptors[0]));
UpdateListLinks();
UpdateButtonsEnabledStatus();
_shouldBeSaved = true;
}