void UndoManager::RemoveStates(int num)
{
for (int i = 0; i < num; i++) {
RemoveStateAt(0);
current -= 1;
saved -= 1;
}
}
void UndoManager::PushState(TrackList * l, double sel0, double sel1,
wxString longDescription,
wxString shortDescription,
int flags)
{
unsigned int i;
// If consolidate is set to true, group up to 3 identical operations.
if (((flags&PUSH_CONSOLIDATE)!=0) && lastAction == longDescription &&
consolidationCount < 2) {
consolidationCount++;
ModifyState(l, sel0, sel1);
// MB: If the "saved" state was modified by ModifyState, reset
// it so that UnsavedChanges returns true.
if (current == saved) {
saved = -1;
}
return;
}
consolidationCount = 0;
i = current + 1;
while (i < stack.Count()) {
RemoveStateAt(i);
}
TrackList *tracksCopy = new TrackList();
TrackListIterator iter(l);
Track *t = iter.First();
while (t) {
tracksCopy->Add(t->Duplicate());
t = iter.Next();
}
UndoStackElem *push = new UndoStackElem();
push->tracks = tracksCopy;
push->sel0 = sel0;
push->sel1 = sel1;
push->description = longDescription;
push->shortDescription = shortDescription;
push->spaceUsage = 0; // Calculate actual value after it's on the stack.
stack.Add(push);
current++;
if( (flags&PUSH_CALC_SPACE)!=0)
push->spaceUsage = this->CalculateSpaceUsage(current);
if (saved >= current) {
saved = -1;
}
lastAction = longDescription;
}
void UndoManager::PushState(const TrackList * l,
const SelectedRegion &selectedRegion,
const std::shared_ptr<Tags> &tags,
const wxString &longDescription,
const wxString &shortDescription,
UndoPush flags)
{
unsigned int i;
// If consolidate is set to true, group up to 3 identical operations.
if (((flags & UndoPush::CONSOLIDATE) != UndoPush::MINIMAL) && lastAction == longDescription &&
consolidationCount < 2) {
consolidationCount++;
ModifyState(l, selectedRegion, tags);
// MB: If the "saved" state was modified by ModifyState, reset
// it so that UnsavedChanges returns true.
if (current == saved) {
saved = -1;
}
return;
}
consolidationCount = 0;
i = current + 1;
while (i < stack.size()) {
RemoveStateAt(i);
}
auto tracksCopy = std::make_unique<TrackList>();
TrackListConstIterator iter(l);
const Track *t = iter.First();
while (t) {
tracksCopy->Add(t->Duplicate());
t = iter.Next();
}
// Assume tags was duplicted before any changes.
// Just save a new shared_ptr to it.
stack.push_back(
make_movable<UndoStackElem>
(std::move(tracksCopy),
longDescription, shortDescription, selectedRegion, tags)
);
current++;
if (saved >= current) {
saved = -1;
}
lastAction = longDescription;
}
void UndoManager::PushState(TrackList * l,
const SelectedRegion &selectedRegion,
const wxString &longDescription,
const wxString &shortDescription,
int flags)
{
unsigned int i;
// If consolidate is set to true, group up to 3 identical operations.
if (((flags&PUSH_CONSOLIDATE)!=0) && lastAction == longDescription &&
consolidationCount < 2) {
consolidationCount++;
ModifyState(l, selectedRegion);
// MB: If the "saved" state was modified by ModifyState, reset
// it so that UnsavedChanges returns true.
if (current == saved) {
saved = -1;
}
return;
}
consolidationCount = 0;
i = current + 1;
while (i < stack.Count()) {
RemoveStateAt(i);
}
TrackList *tracksCopy = new TrackList();
TrackListIterator iter(l);
Track *t = iter.First();
while (t) {
tracksCopy->Add(t->Duplicate());
t = iter.Next();
}
UndoStackElem *push = new UndoStackElem();
push->tracks = tracksCopy;
push->selectedRegion = selectedRegion;
push->description = longDescription;
push->shortDescription = shortDescription;
stack.Add(push);
current++;
if (saved >= current) {
saved = -1;
}
lastAction = longDescription;
}
void UndoManager::RemoveStates(int num)
{
for (int i = 0; i < num; i++)
RemoveStateAt(0);
}
