/// <summary>
/// Applies the changes to the project, and updates the display.
///
/// This is called by the undo/redo commands. Don't call this directly from the
/// various UI-driven functions, as this does not add the change to the undo stack.
/// </summary>
/// <param name="cs">Set of changes to apply.</param>
/// <param name="backward">If set, undo the changes instead.</param>
private void ApplyChanges(ChangeSet cs, bool backward)
{
mReanalysisTimer.Clear();
mReanalysisTimer.StartTask("ProjectView.ApplyChanges()");
mReanalysisTimer.StartTask("Save selection");
#if false
int topItem = codeListView.TopItem.Index;
#else
int topItem = 0;
#endif
int topOffset = mDisplayList[topItem].FileOffset;
DisplayListGen.SavedSelection savedSel = DisplayListGen.SavedSelection.Generate(
mDisplayList, mCodeViewSelection, topOffset);
//savedSel.DebugDump();
mReanalysisTimer.EndTask("Save selection");
mReanalysisTimer.StartTask("Apply changes");
UndoableChange.ReanalysisScope needReanalysis = mProject.ApplyChanges(cs, backward,
out RangeSet affectedOffsets);
mReanalysisTimer.EndTask("Apply changes");
string refreshTaskStr = "Refresh w/reanalysis=" + needReanalysis;
mReanalysisTimer.StartTask(refreshTaskStr);
if (needReanalysis != UndoableChange.ReanalysisScope.None)
{
Debug.WriteLine("Refreshing project (" + needReanalysis + ")");
RefreshProject(needReanalysis);
}
else
{
Debug.WriteLine("Refreshing " + affectedOffsets.Count + " offsets");
RefreshCodeListViewEntries(affectedOffsets);
mProject.Validate(); // shouldn't matter w/o reanalysis, but do it anyway
}
mReanalysisTimer.EndTask(refreshTaskStr);
VirtualListViewSelection newSel = savedSel.Restore(mDisplayList, out int topIndex);
//newSel.DebugDump();
// Refresh the various windows, and restore the selection.
mReanalysisTimer.StartTask("Invalidate controls");
#if false
InvalidateControls(newSel);
#endif
mReanalysisTimer.EndTask("Invalidate controls");
// This apparently has to be done after the EndUpdate, and inside try/catch.
// See https://stackoverflow.com/questions/626315/ for notes.
try {
Debug.WriteLine("Setting TopItem to index=" + topIndex);
#if false
codeListView.TopItem = codeListView.Items[topIndex];
#endif
} catch (NullReferenceException) {
Debug.WriteLine("Caught an NRE from TopItem");
}
mReanalysisTimer.EndTask("ProjectView.ApplyChanges()");
//mReanalysisTimer.DumpTimes("ProjectView timers:", mGenerationLog);
#if false
if (mShowAnalysisTimersDialog != null)
{
string timerStr = mReanalysisTimer.DumpToString("ProjectView timers:");
mShowAnalysisTimersDialog.BodyText = timerStr;
}
#endif
// Lines may have moved around. Update the selection highlight. It's important
// we do it here, and not down in DoRefreshProject(), because at that point the
// ListView's selection index could be referencing a line off the end.
#if false
UpdateSelectionHighlight();
#endif
}