void TrackList::ClearPendingTracks( ListOfTracks *pAdded )
// NOFAIL-GUARANTEE
{
for (const auto &pTrack: mPendingUpdates)
pTrack->SetOwner( {}, {} );
mPendingUpdates.clear();
mUpdaters.clear();
if (pAdded)
pAdded->clear();
for (auto it = ListOfTracks::begin(), stop = ListOfTracks::end();
it != stop;) {
if (it->get()->GetId() == TrackId{}) {
if (pAdded)
pAdded->push_back( *it );
(*it)->SetOwner( {}, {} );
it = erase( it );
}
else
++it;
}
if (!empty())
RecalcPositions(getBegin());
}
BOOL HexView::OpenFile(LPCTSTR szFileName, UINT uOpenFlags)
{
bool fReadonly = (uOpenFlags & HVOF_READONLY) ? true : false;
bool fQuickload = (uOpenFlags & HVOF_QUICKLOAD) ? true : false;
bool fQuicksave = (uOpenFlags & HVOF_QUICKSAVE) ? true : false;
// try to open as the caller requests us
if(m_pDataSeq->open(szFileName, fReadonly, fQuickload))
{
TCHAR *fp;
DWORD e = GetLastError();
GetFullPathName(szFileName, MAX_PATH, m_szFilePath, &fp);
RecalcPositions();
SetCaretPos((m_nAddressWidth + m_nHexPaddingLeft) * m_nFontHeight, 0);
UpdateMetrics();
SetLastError(e);
if(m_pDataSeq->isreadonly())
m_nEditMode = HVMODE_READONLY;
else
m_nEditMode = HVMODE_OVERWRITE;
m_nSearchLen = 0;
return TRUE;
}
return FALSE;
}
bool TrackList::ApplyPendingTracks()
{
bool result = false;
ListOfTracks additions;
ListOfTracks updates;
{
// Always clear, even if one of the update functions throws
auto cleanup = finally( [&] { ClearPendingTracks( &additions ); } );
UpdatePendingTracks();
updates.swap( mPendingUpdates );
}
// Remaining steps must be NOFAIL-GUARANTEE so that this function
// gives STRONG-GUARANTEE
std::vector< std::shared_ptr<Track> > reinstated;
for (auto &pendingTrack : updates) {
if (pendingTrack) {
auto src = FindById( pendingTrack->GetId() );
if (src)
this->Replace(src, pendingTrack), result = true;
else
// Perhaps a track marked for pending changes got deleted by
// some other action. Recreate it so we don't lose the
// accumulated changes.
reinstated.push_back(pendingTrack);
}
}
// If there are tracks to reinstate, append them to the list.
for (auto &pendingTrack : reinstated)
if (pendingTrack)
this->Add( pendingTrack ), result = true;
// Put the pending added tracks back into the list, preserving their
// positions.
bool inserted = false;
ListOfTracks::iterator first;
for (auto &pendingTrack : additions) {
if (pendingTrack) {
auto iter = ListOfTracks::begin();
std::advance( iter, pendingTrack->GetIndex() );
iter = ListOfTracks::insert( iter, pendingTrack );
pendingTrack->SetOwner( shared_from_this(), {iter, this} );
pendingTrack->SetId( TrackId{ ++sCounter } );
if (!inserted) {
first = iter;
inserted = true;
}
}
}
if (inserted) {
RecalcPositions({first, this});
result = true;
}
return result;
}
void TrackList::Remove(Track * t, bool deletetrack)
{
if (t) {
TrackListNode *node = (TrackListNode *) t->GetNode();
t->SetOwner(NULL, NULL);
if (deletetrack) {
delete t;
}
if (node) {
if (node->prev) {
node->prev->next = node->next;
}
else {
head = node->next;
}
if (node->next) {
node->next->prev = node->prev;
RecalcPositions(node->next);
}
else {
tail = node->prev;
}
UpdatedEvent(NULL);
ResizedEvent(node->next);
delete node;
}
}
}
void PG_ScrollBar::eventSizeWidget(Uint16 w, Uint16 h) {
PG_Widget::eventSizeWidget(w, h);
RecalcPositions();
SetPosition(scroll_current);
return;
}
// This is used when you want to swap the channel group starting
// at s1 with that starting at s2.
// The complication is that the tracks are stored in a single
// linked list.
void TrackList::SwapNodes(TrackNodePointer s1, TrackNodePointer s2)
{
// if a null pointer is passed in, we want to know about it
wxASSERT(!isNull(s1));
wxASSERT(!isNull(s2));
// Deal with first track in each team
s1 = ( * FindLeader( s1.first->get() ) )->GetNode();
s2 = ( * FindLeader( s2.first->get() ) )->GetNode();
// Safety check...
if (s1 == s2)
return;
// Be sure s1 is the earlier iterator
if ((*s1.first)->GetIndex() >= (*s2.first)->GetIndex())
std::swap(s1, s2);
// For saving the removed tracks
using Saved = std::vector< ListOfTracks::value_type >;
Saved saved1, saved2;
auto doSave = [&] ( Saved &saved, TrackNodePointer &s ) {
size_t nn = Channels( s.first->get() ).size();
saved.resize( nn );
// Save them in backwards order
while( nn-- )
saved[nn] = *s.first, s.first = erase(s.first);
};
doSave( saved1, s1 );
// The two ranges are assumed to be disjoint but might abut
const bool same = (s1 == s2);
doSave( saved2, s2 );
if (same)
// Careful, we invalidated s1 in the second doSave!
s1 = s2;
// Reinsert them
auto doInsert = [&] ( Saved &saved, TrackNodePointer &s ) {
Track *pTrack;
for (auto & pointer : saved)
pTrack = pointer.get(),
// Insert before s, and reassign s to point at the new node before
// old s; which is why we saved pointers in backwards order
pTrack->SetOwner(shared_from_this(),
s = { insert(s.first, pointer), this } );
};
// This does not invalidate s2 even when it equals s1:
doInsert( saved2, s1 );
// Even if s2 was same as s1, this correctly inserts the saved1 range
// after the saved2 range, when done after:
doInsert( saved1, s2 );
// Now correct the Index in the tracks, and other things
RecalcPositions(s1);
PermutationEvent();
}
void CVisualContainer::AddComponent(CVisualComponent* pComponent)
{
pComponent->SetContainer(this);
m_arrComponents.Add(pComponent);
m_Rect.Expand(0, pComponent->Rect().h() + TOP_MARGIN);
RecalcPositions();
}
Track *TrackList::Add(std::shared_ptr<TrackKind> &&t)
{
push_back(t);
auto n = end();
--n;
t->SetOwner(this, n);
RecalcPositions(n);
UpdatedEvent(n);
return back().get();
}
Track *TrackList::AddToHead(std::unique_ptr<TrackKind> &&t)
{
Track *pTrack;
push_front(value_type(pTrack = t.release()));
auto n = begin();
pTrack->SetOwner(this, n);
RecalcPositions(n);
UpdatedEvent(n);
ResizedEvent(n);
return front().get();
}
Track *TrackList::Add(std::unique_ptr<TrackKind> &&t)
{
Track *pTrack;
push_back(value_type(pTrack = t.release()));
auto n = end();
--n;
pTrack->SetOwner(this, n);
RecalcPositions(n);
UpdatedEvent(n);
return back().get();
}
Track *TrackList::DoAddToHead(const std::shared_ptr<Track> &t)
{
Track *pTrack = t.get();
push_front(ListOfTracks::value_type(t));
auto n = getBegin();
pTrack->SetOwner(shared_from_this(), n);
pTrack->SetId( TrackId{ ++sCounter } );
RecalcPositions(n);
AdditionEvent(n);
return front().get();
}
Track *TrackList::DoAdd(const std::shared_ptr<Track> &t)
{
push_back(t);
auto n = getPrev( getEnd() );
t->SetOwner(shared_from_this(), n);
t->SetId( TrackId{ ++sCounter } );
RecalcPositions(n);
AdditionEvent(n);
return back().get();
}
void TrackList::Permute(const std::vector<TrackNodePointer> &permutation)
{
for (const auto iter : permutation) {
value_type track = std::move(*iter);
erase(iter);
Track *pTrack = track.get();
pTrack->SetOwner(this, insert(end(), std::move(track)));
}
auto n = begin();
RecalcPositions(n);
UpdatedEvent(n);
ResizedEvent(n);
}
void TrackList::Permute(const std::vector<TrackNodePointer> &permutation)
{
for (const auto iter : permutation) {
ListOfTracks::value_type track = *iter.first;
erase(iter.first);
Track *pTrack = track.get();
pTrack->SetOwner(shared_from_this(),
{ insert(ListOfTracks::end(), track), this });
}
auto n = getBegin();
RecalcPositions(n);
PermutationEvent();
}
void TrackList::Replace(Track * t, Track * with, bool deletetrack)
{
if (t && with) {
TrackListNode *node = (TrackListNode *) t->GetNode();
t->SetOwner(NULL, NULL);
if (deletetrack) {
delete t;
}
node->t = with;
with->SetOwner(this, node);
RecalcPositions(node);
UpdatedEvent(node);
ResizedEvent(node);
}
}
TrackNodePointer TrackList::Remove(Track *t)
{
TrackNodePointer result(end());
if (t) {
auto node = t->GetNode();
if (!isNull(node)) {
result = erase(node);
if (!isNull(result)) {
RecalcPositions(result);
}
UpdatedEvent(end());
ResizedEvent(result);
}
}
return result;
}
void Track::SetLinked(bool l)
{
auto pList = mList.lock();
if (pList && !pList->mPendingUpdates.empty()) {
auto orig = pList->FindById( GetId() );
if (orig && orig != this) {
// delegate, and rely on RecalcPositions to copy back
orig->SetLinked(l);
return;
}
}
DoSetLinked(l);
if (pList) {
pList->RecalcPositions(mNode);
pList->ResizingEvent(mNode);
}
}
TrackNodePointer TrackList::Remove(Track *t)
{
auto result = getEnd();
if (t) {
auto node = t->GetNode();
t->SetOwner({}, {});
if ( !isNull( node ) ) {
ListOfTracks::value_type holder = *node.first;
result = getNext( node );
erase(node.first);
if ( !isNull( result ) )
RecalcPositions(result);
DeletionEvent();
}
}
return result;
}
void PG_ScrollBar::SetPosition(int pos) {
if(pos < scroll_min) {
pos = scroll_min;
}
if(pos > scroll_max) {
pos = scroll_max;
}
scroll_current = pos;
pos -= scroll_min;
// check if we are currently in a drag operation
if(dragbutton->GetPressed()) {
return;
}
RecalcPositions();
}
BOOL HexView::InitBuf(const BYTE *buffer, size_t len, bool copybuf, bool readonly)
{
if(m_pDataSeq->init(buffer, len, copybuf))
{
m_szFilePath[0] = '\0';
m_nEditMode = readonly ? HVMODE_READONLY : HVMODE_OVERWRITE;
RecalcPositions();
SetCaretPos((m_nAddressWidth + m_nHexPaddingLeft) * m_nFontHeight, 0);
UpdateMetrics();
m_nSearchLen = 0;
return TRUE;
}
else
{
return FALSE;
}
}
void TrackList::Replace(const Track * t, const Track * with, bool deletetrack)
{
Track *const mutableT = const_cast<Track*>(t);
Track *const mutableWith = const_cast<Track*>(with);
if (mutableT && with) {
TrackListNode *node =
const_cast<TrackListNode *>(mutableT->GetNode());
mutableT->SetOwner(NULL, NULL);
if (deletetrack) {
delete t;
}
node->t = mutableWith;
mutableWith->SetOwner(this, node);
RecalcPositions(node);
UpdatedEvent(node);
ResizedEvent(node);
}
}
void TrackList::Add(Track * t)
{
TrackListNode *n = new TrackListNode;
t->SetOwner(this, n);
n->t = (Track *) t;
n->prev = tail;
n->next = NULL;
if (tail) {
tail->next = n;
}
tail = n;
if (!head) {
head = n;
}
RecalcPositions(n);
UpdatedEvent(n);
}
void TrackList::AddToHead(Track * t)
{
TrackListNode *n = new TrackListNode;
t->SetOwner(this, n);
n->t = (Track *) t;
n->prev = NULL;
n->next = head;
if (head) {
head->prev = n;
}
head = n;
if (!tail) {
tail = n;
}
RecalcPositions(head);
UpdatedEvent(n);
ResizedEvent(n);
}
void CVisualContainer::AddPosition(double x, double y)
{
CVisualObject::AddPosition(x, y);
RecalcPositions();
}
// Precondition: if either of s1 or s2 are "linked", then
// s1 and s2 must each be the FIRST node of the linked pair.
//
// This is used when you want to swap the track or pair of
// tracks in s1 with the track or pair of tracks in s2.
// The complication is that the tracks are stored in a single
// linked list, and pairs of tracks are marked only by a flag
// in one of the tracks.
void TrackList::SwapNodes(TrackListNode * s1, TrackListNode * s2)
{
Track *link;
Track *source[4];
TrackListNode *target[4];
// if a null pointer is passed in, we want to know about it
wxASSERT(s1);
wxASSERT(s2);
// Deal with firat track in each team
link = s1->t->GetLink();
if (!s1->t->GetLinked() && link) {
s1 = (TrackListNode *) link->GetNode();
}
link = s2->t->GetLink();
if (!s2->t->GetLinked() && link) {
s2 = (TrackListNode *) link->GetNode();
}
target[0] = s1;
source[0] = target[0]->t;
if (source[0]->GetLinked()) {
target[1] = target[0]->next;
source[1] = target[1]->t;
}
else {
target[1] = NULL;
source[1] = NULL;
}
target[2] = s2;
source[2] = target[2]->t;
if (source[2]->GetLinked()) {
target[3] = target[2]->next;
source[3] = target[3]->t;
}
else {
target[3] = NULL;
source[3] = NULL;
}
int s = 2;
for (int t = 0; t < 4; t++) {
if (target[t]) {
target[t]->t = source[s];
target[t]->t->SetOwner(NULL, NULL);
target[t]->t->SetOwner(this, target[t]);
s = (s + 1) % 4;
if (!source[s]) {
s = (s + 1) % 4;
}
}
}
RecalcPositions(s1);
UpdatedEvent(s1);
ResizedEvent(s1);
}
// This is used when you want to swap the track or pair of
// tracks in s1 with the track or pair of tracks in s2.
// The complication is that the tracks are stored in a single
// linked list, and pairs of tracks are marked only by a flag
// in one of the tracks.
void TrackList::SwapNodes(TrackNodePointer s1, TrackNodePointer s2)
{
// if a null pointer is passed in, we want to know about it
wxASSERT(!isNull(s1));
wxASSERT(!isNull(s2));
// Deal with first track in each team
Track *link;
link = (*s1)->GetLink();
bool linked1 = link != nullptr;
if (linked1 && !(*s1)->GetLinked()) {
s1 = link->GetNode();
}
link = (*s2)->GetLink();
bool linked2 = link != nullptr;
if (linked2 && !(*s2)->GetLinked()) {
s2 = link->GetNode();
}
// Safety check...
if (s1 == s2)
return;
// Be sure s1 is the earlier iterator
if ((*s1)->GetIndex() >= (*s2)->GetIndex()) {
std::swap(s1, s2);
std::swap(linked1, linked2);
}
// Remove tracks
value_type save11 = std::move(*s1), save12{};
s1 = erase(s1);
if (linked1) {
wxASSERT(s1 != s2);
save12 = std::move(*s1), s1 = erase(s1);
}
const bool same = (s1 == s2);
value_type save21 = std::move(*s2), save22{};
s2 = erase(s2);
if (linked2)
save22 = std::move(*s2), s2 = erase(s2);
if (same)
// We invalidated s1!
s1 = s2;
// Reinsert them
Track *pTrack;
if (save22)
pTrack = save22.get(), pTrack->SetOwner(this, s1 = insert(s1, std::move(save22)));
pTrack = save21.get(), pTrack->SetOwner(this, s1 = insert(s1, std::move(save21)));
if (save12)
pTrack = save12.get(), pTrack->SetOwner(this, s2 = insert(s2, std::move(save12)));
pTrack = save11.get(), pTrack->SetOwner(this, s2 = insert(s2, std::move(save11)));
// Now correct the Index in the tracks, and other things
RecalcPositions(s1);
UpdatedEvent(s1);
ResizedEvent(s1);
}
