protected override void OnActivateTool() {
base.OnActivateTool();
DeleteCommand cmd;
if (this.Controller.Model.Selection.SelectedItems.Count > 0) {
// If any one entity in the selction can't be deleted,
// remove it from the selection.
for (int i = 0; i < this.Controller.Model.Selection.SelectedItems.Count; i++) {
IDiagramEntity entity = this.Controller.Model.Selection.SelectedItems[i];
if (entity.AllowDelete == false) {
this.Controller.Model.Selection.SelectedItems.Remove(entity);
i--;
}
}
cmd = new DeleteCommand(
this.Controller,
this.Controller.Model.Selection.SelectedItems.Copy());
this.Controller.UndoManager.AddUndoCommand(cmd);
// Alert each entity that they're about to be deleted.
foreach (IDiagramEntity entity in this.Controller.Model.Selection.SelectedItems) {
entity.OnBeforeDelete(cmd);
}
cmd.Redo();
// Alert each entity that they have been deleted.
foreach (IDiagramEntity entity in this.Controller.Model.Selection.SelectedItems) {
entity.OnAfterDelete(cmd);
}
}
DeactivateTool();
}
protected override void OnActivateTool()
{
base.OnActivateTool();
DeleteCommand cmd;
if (this.Controller.Model.Selection.SelectedItems.Count > 0)
{
// If any one entity in the selction can't be deleted,
// remove it from the selection.
for (int i = 0; i < this.Controller.Model.Selection.SelectedItems.Count; i++)
{
IDiagramEntity entity = this.Controller.Model.Selection.SelectedItems[i];
if (entity.AllowDelete == false)
{
this.Controller.Model.Selection.SelectedItems.Remove(entity);
i--;
}
}
cmd = new DeleteCommand(
this.Controller,
this.Controller.Model.Selection.SelectedItems.Copy());
this.Controller.UndoManager.AddUndoCommand(cmd);
// Alert each entity that they're about to be deleted.
foreach (IDiagramEntity entity in this.Controller.Model.Selection.SelectedItems)
{
entity.OnBeforeDelete(cmd);
}
cmd.Redo();
// Alert each entity that they have been deleted.
foreach (IDiagramEntity entity in this.Controller.Model.Selection.SelectedItems)
{
entity.OnAfterDelete(cmd);
}
}
DeactivateTool();
}