private void DeleteCharts(int hvoStText, Set <int> objectsToDeleteAlso,
SIL.FieldWorks.Common.Controls.ProgressState state)
{
// Enhance GordonM: When we add other subclasses of DsChart, we'll need to delete them too.
if (m_cache.LangProject.DiscourseDataOA == null)
{
return;
}
if (m_cache.LangProject.DiscourseDataOA.ChartsOC == null)
{
return;
}
if (m_cache.LangProject.DiscourseDataOA.ChartsOC.Count == 0)
{
return;
}
state.SetMilestone(Strings.ksDeletingCharts);
foreach (DsConstChart chart in m_cache.LangProject.DiscourseDataOA.ChartsOC)
{
if (chart.BasedOnRAHvo == hvoStText)
{
// We've found a chart on the Text that's going away.
foreach (CmIndirectAnnotation ccr in chart.RowsRS)
{
objectsToDeleteAlso.AddRange(ccr.AppliesToRS.HvoArray);
objectsToDeleteAlso.Add(ccr.Hvo);
}
objectsToDeleteAlso.Add(chart.Hvo);
state.Breath();
}
}
}
/// <summary>
/// we want to delete the owning Text if we delete its StText
/// </summary>
/// <param name="objectsToDeleteAlso"></param>
/// <param name="state"></param>
public override void DeleteObjectSideEffects(SIL.FieldWorks.Common.Utils.Set <int> objectsToDeleteAlso,
SIL.FieldWorks.Common.Controls.ProgressState state)
{
if (this.OwningFlid == (int)FDO.Ling.Text.TextTags.kflidContents)
{
objectsToDeleteAlso.Add(this.OwnerHVO); // delete the owning Text as well.
DeleteCharts(this.Hvo, objectsToDeleteAlso, state);
}
// Wasn't sure we wanted to delete the owning ScrSection in this case.
if (this.OwningFlid == kflidScrSectContent)
{
DeleteCharts(this.Hvo, objectsToDeleteAlso, state);
}
base.DeleteObjectSideEffects(objectsToDeleteAlso, state);
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Override to make sure any CmFiles that are only there only for this picture are
/// deleted as well
/// </summary>
/// ------------------------------------------------------------------------------------
public override void DeleteObjectSideEffects(Set <int> objectsToDeleteAlso, SIL.FieldWorks.Common.Controls.ProgressState state)
{
ICmFile cmFile = PictureFileRA;
// Check to make sure there is a picture file associated with this picture and that the only thing that CmFile is
// around for is to provide a file for this picture. Checking that the backreference of the file that this picture
// uses is 1 is a valid way to make sure of this.
// If this CmFile serves no other purpose, we should get rid of it.
if (cmFile != null && cmFile.BackReferences.Count == 1)
{
objectsToDeleteAlso.Add(cmFile.Hvo);
}
base.DeleteObjectSideEffects(objectsToDeleteAlso, state);
}
