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// TnzBase includes
#include "tfx.h"

// TnzLib includes
#include "toonz/txshcolumn.h"
#include "toonz/txshlevelcolumn.h"
#include "toonz/txshsoundcolumn.h"
#include "toonz/txshpalettecolumn.h"
#include "toonz/txshzeraryfxcolumn.h"
#include "toonz/txshsoundtextcolumn.h"
#include "toonz/txshmeshcolumn.h"
#include "toonz/txshcell.h"
#include "toonz/txsheet.h"
#include "toonz/fxdag.h"
#include "toonz/tcolumnfxset.h"
#include "toonz/preferences.h"
#include "toonz/txshleveltypes.h"

//=============================================================================
// TXshCellColumn

TXshCellColumn::TXshCellColumn() : m_first(0) {}

//-----------------------------------------------------------------------------

TXshCellColumn::~TXshCellColumn() { m_cells.clear(); }

//-----------------------------------------------------------------------------

int TXshCellColumn::getRange(int &r0, int &r1) const {
  int cellCount = m_cells.size();
  r0            = m_first;
  r1            = r0 + cellCount - 1;
  int i;
  for (i = 0; i < cellCount && m_cells[i].isEmpty(); i++) {
  }
  if (i >= cellCount) {
    r0 = 0;
    r1 = -1;
    return 0;
  }
  r0 = m_first + i;
  for (i = cellCount - 1; i >= 0 && m_cells[i].isEmpty(); i--) {
  }

  r1 = m_first + i;
  return r1 - r0 + 1;
}

//-----------------------------------------------------------------------------

int TXshCellColumn::getRowCount() const {
  int i = m_cells.size();
  for (; i > 0 && m_cells[i - 1].isEmpty(); i--) {
  }
  if (i == 0)
    return 0;
  else
    return m_first + i;
}

//-----------------------------------------------------------------------------

int TXshCellColumn::getMaxFrame() const {
  int r0, r1;
  getRange(r0, r1);
  return r1;
}

//-----------------------------------------------------------------------------

int TXshCellColumn::getFirstRow() const { return m_first; }

//-----------------------------------------------------------------------------

const TXshCell &TXshCellColumn::getCell(int row) const {
  static TXshCell emptyCell;
  if (row < 0 || row < m_first || row >= m_first + (int)m_cells.size())
    return emptyCell;
  return m_cells[row - m_first];
}

//-----------------------------------------------------------------------------

bool TXshCellColumn::isCellEmpty(int row) const {
  return getCell(row).isEmpty();
}

//-----------------------------------------------------------------------------

//--- debug only
void TXshCellColumn::checkColumn() const {
  assert(m_first >= 0);
  int r0, r1;
  int range = getRange(r0, r1);
  assert(range >= 0);
  assert(range == (int)m_cells.size());
  assert(getRowCount() >= 0);

  TXshCell firstCell = getCell(m_first);
  TXshCell lastCell  = getCell(r1);
  if (range == 0)
    assert(firstCell.isEmpty() && lastCell.isEmpty());
  else {
    assert(firstCell.isEmpty() == 0);
    assert(lastCell.isEmpty() == 0);

    int maxFrame = getMaxFrame();
    assert(maxFrame == r1);
    assert(getCell(maxFrame).isEmpty() == 0);
  }
}

//-----------------------------------------------------------------------------

void TXshCellColumn::getCells(int row, int rowCount, TXshCell cells[]) {
  const TXshCell emptyCell;
  int first = m_first;
  int i;
  int cellCount = m_cells.size();
  if (row < 0 || row + rowCount - 1 < first || row >= first + cellCount) {
    for (i = 0; i < rowCount; i++) cells[i] = emptyCell;
    return;
  }

  int dst, src, n, delta;
  n     = rowCount;
  delta = m_first - row;
  if (delta < 0) {  // le celle cominciano PRIMA della zona da leggere
    dst = 0;
    src = -delta;
  } else {  // le celle cominciano DOPO della zona da leggere
    dst = delta;
    src = 0;
    n -= delta;
  }
  if (n + src > cellCount) n = cellCount - src;

  TXshCell *dstCell                       = cells;
  TXshCell *endDstCell                    = dstCell + dst;
  while (dstCell < endDstCell) *dstCell++ = emptyCell;
  endDstCell += n;
  while (dstCell < endDstCell) *dstCell++ = m_cells[src++];
  endDstCell                              = cells + rowCount;
  while (dstCell < endDstCell) *dstCell++ = emptyCell;
}

//-----------------------------------------------------------------------------

bool TXshCellColumn::setCell(int row, const TXshCell &cell) {
  if (!canSetCell(cell)) return false;
  assert(row >= 0);
#ifndef NDEBUG
  checkColumn();
#endif
  if (m_cells.empty())  // se la colonna e' vuota
  {
    if (!cell.isEmpty()) {
      m_cells.push_back(cell);
      m_first = row;
      // updateIcon();
    }
    return true;
  }

  int oldCellCount = m_cells.size();
  assert(oldCellCount > 0);
  int lastRow = m_first + oldCellCount - 1;

  if (row < m_first)  // prima
  {
    if (cell.isEmpty()) return false;  // non faccio nulla
    int delta = m_first - row;
    assert(delta > 0);
    m_cells.insert(m_cells.begin(), delta - 1, TXshCell());  // celle vuote
    m_cells.insert(m_cells.begin(),
                   cell);  // devo settare la prima comp. del vettore
    m_first = row;         // row 'e la nuova firstrow
// updateIcon();
#ifndef NDEBUG
    checkColumn();
#endif
    return true;
  } else if (row > lastRow)  // dopo
  {
    if (cell.isEmpty()) return false;  // non faccio nulla
    int count = row - lastRow - 1;
    // se necessario, inserisco celle vuote
    for (int i = 0; i < count; ++i) m_cells.push_back(TXshCell());
    m_cells.push_back(cell);
#ifndef NDEBUG
    checkColumn();
#endif
    return true;
  }
  //"[r0,r1]"
  int index = row - m_first;
  assert(0 <= index && index < (int)m_cells.size());
  m_cells[index] = cell;
  // if(index == 0) updateIcon();
  if (cell.isEmpty()) {
    if (row == lastRow) {
      // verifico la presenza di celle bianche alla fine
      while (!m_cells.empty() && m_cells.back().isEmpty()) m_cells.pop_back();
    } else if (row == m_first) {
      // verifico la presenza di celle bianche all'inizio
      while (!m_cells.empty() && m_cells.front().isEmpty()) {
        m_cells.erase(m_cells.begin());
        m_first++;
      }
    }
    if (m_cells.empty()) m_first = 0;
  }
  checkColumn();
  return true;
}

//-----------------------------------------------------------------------------

bool TXshCellColumn::setCells(int row, int rowCount, const TXshCell cells[]) {
  assert(row >= 0);
  int i;
  for (i = 0; i < rowCount; i++)
    if (!canSetCell(cells[i])) return false;

  int oldCellCount = m_cells.size();

  // le celle da settare sono [ra, rb]
  int ra = row;
  int rb = row + rowCount - 1;
  assert(ra <= rb);
  // le celle non vuote sono [c_ra, c_rb]
  int c_rb = m_first + oldCellCount - 1;

  if (row > c_rb)  // sono oltre l'ultima riga
  {
    if (oldCellCount == 0) m_first = row;  // row 'e la nuova firstrow
    int newCellCount               = row - m_first + rowCount;
    m_cells.resize(newCellCount);
  } else if (row < m_first) {
    int delta = m_first - row;
    m_cells.insert(m_cells.begin(), delta, TXshCell());
    m_first = row;  // row e' la nuova firstrow
  }
  if (rb > c_rb) {
    for (int i = 0; i < rb - c_rb; ++i) m_cells.push_back(TXshCell());
  }

  int index = row - m_first;
  assert(0 <= index && index < (int)m_cells.size());
  for (int i = 0; i < rowCount; i++) m_cells[index + i] = cells[i];

  // verifico la presenza di celle bianche alla fine
  while (!m_cells.empty() && m_cells.back().isEmpty()) {
    m_cells.pop_back();
  }

  // verifico la presenza di celle bianche all'inizio
  while (!m_cells.empty() && m_cells.front().isEmpty()) {
    m_cells.erase(m_cells.begin());
    m_first++;
  }
  if (m_cells.empty()) {
    m_first = 0;
  }
  // updateIcon();
  return true;
}

//-----------------------------------------------------------------------------

void TXshCellColumn::insertEmptyCells(int row, int rowCount) {
  if (m_cells.empty()) return;  // se la colonna e' vuota non devo inserire
                                // celle

  if (row >= m_first + (int)m_cells.size()) return;  // dopo:non inserisco nulla
  if (row <= m_first)                                // prima
  {
    m_first += rowCount;
  } else  // in mezzo
  {
    int delta                          = row - m_first;
    std::vector<TXshCell>::iterator it = m_cells.begin();
    std::advance(it, delta);
    m_cells.insert(it, rowCount, TXshCell());
  }
}

//-----------------------------------------------------------------------------
// sbianca le celle [row, row+rowCount-1] (senza shiftare)
void TXshCellColumn::clearCells(int row, int rowCount) {
  if (rowCount <= 0) return;
  if (m_cells.empty()) return;  // se la colonna e' vuota

  // le celle da cancellare sono [ra, rb]
  int ra = row;
  int rb = row + rowCount - 1;
  assert(ra <= rb);

  int cellCount = m_cells.size();

  // le celle non vuote sono [c_ra, c_rb]
  int c_ra = m_first;
  int c_rb = m_first + cellCount - 1;
  assert(c_ra <= c_rb);

  // se e' sotto o sopra le celle occupate non devo far nulla
  if (rb < c_ra || ra > c_rb) return;

  // restringo l'area da cancellare in modo che comprenda solo celle non vuote
  if (ra < c_ra) ra = c_ra;
  if (rb > c_rb) rb = c_rb;

  // devo "sbiancare" n celle
  int n = rb - ra + 1;
  assert(n >= 0);

  if (n == cellCount)  // ho cancellato tutto
  {
    m_cells.clear();
    m_first = 0;
  } else {
    assert(ra - c_ra < (int)m_cells.size());
    assert(ra - c_ra + n <= (int)m_cells.size());
    // std::fill_n(&m_cells[ra-c_ra],n, TXshCell());
    int i;
    for (i = 0; i < n; i++) m_cells[ra - c_ra + i] = TXshCell();

    // verifico la presenza di celle bianche alla fine
    while (!m_cells.empty() && m_cells.back().isEmpty()) {
      m_cells.pop_back();
    }

    if (m_cells.empty()) {
      m_first = 0;
    } else {
      // verifico la presenza di celle bianche all'inizio
      while (!m_cells.empty() && m_cells.front().isEmpty()) {
        m_cells.erase(m_cells.begin());
        m_first++;
      }
    }
  }
  // updateIcon();
}

//-----------------------------------------------------------------------------

// rimuove le celle [row, row+rowCount-1] (shiftando)
void TXshCellColumn::removeCells(int row, int rowCount) {
  if (rowCount <= 0) return;
  if (m_cells.empty()) return;  // se la colonna e' vuota

  int cellCount = m_cells.size();

  if (row >= m_first + cellCount) return;  // sono "sotto" l'ultima cella
  if (row < m_first) {
    if (row + rowCount <= m_first)  //"sono sopra la prima cella"
    {                               // aggiorno solo m_first
      m_first -= rowCount;
      return;
    }
    rowCount += row - m_first;
    m_first = row;
  }

  assert(row >= m_first);
  // le celle sotto m_first+cellCount sono gia' vuote
  if (rowCount > m_first + cellCount - row)
    rowCount = m_first + cellCount - row;
  if (rowCount <= 0) return;

  if (row == m_first) {
    // cancello all'inizio
    assert(rowCount <= cellCount);
    std::vector<TXshCell>::iterator it  = m_cells.begin();
    std::vector<TXshCell>::iterator it2 = m_cells.begin();
    std::advance(it2, rowCount);
    m_cells.erase(it, it2);
    // verifico la presenza di celle bianche all'inizio
    while (!m_cells.empty() && m_cells.front().isEmpty()) {
      m_cells.erase(m_cells.begin());
      m_first++;
    }
  } else {
    // cancello dopo l'inizio
    int d                               = row - m_first;
    std::vector<TXshCell>::iterator it  = m_cells.begin();
    std::vector<TXshCell>::iterator it2 = m_cells.begin();
    std::advance(it, d);
    std::advance(it2, d + rowCount);
    m_cells.erase(it, it2);
    if (row + rowCount == m_first + cellCount) {
      // verifico la presenza di celle bianche alla fine
      while (!m_cells.empty() && m_cells.back().isEmpty()) {
        m_cells.pop_back();
      }
    }
  }

  if (m_cells.empty()) {
    m_first = 0;
  }
  // updateIcon();
}

//-----------------------------------------------------------------------------

bool TXshCellColumn::getLevelRange(int row, int &r0, int &r1) const {
  r0 = r1       = row;
  TXshCell cell = getCell(row);
  if (cell.isEmpty()) return false;
  while (r0 > 0 &&
         getCell(r0 - 1).m_level.getPointer() == cell.m_level.getPointer())
    r0--;
  while (getCell(r1 + 1).m_level.getPointer() == cell.m_level.getPointer())
    r1++;
  return true;
}

//=============================================================================
// TXshColumn

void TXshColumn::setStatusWord(int status) { m_status = status; }

//-----------------------------------------------------------------------------

TXshColumn *TXshColumn::createEmpty(int type) {
  switch (type) {
  case eSoundType:
    return new TXshSoundColumn;
  case eZeraryFxType:
    return new TXshZeraryFxColumn(0);
  case ePaletteType:
    return new TXshPaletteColumn;
  case eSoundTextType:
    return new TXshSoundTextColumn;
  case eMeshType:
    return new TXshMeshColumn;
  }

  assert(type == eLevelType);
  return new TXshLevelColumn;
}

//-----------------------------------------------------------------------------

TXshColumn::ColumnType TXshColumn::toColumnType(int levelType) {
  ColumnType colType = TXshColumn::eLevelType;

  if (levelType & LEVELCOLUMN_XSHLEVEL)
    colType = TXshColumn::eLevelType;
  else if (levelType == ZERARYFX_XSHLEVEL)
    colType = TXshColumn::eZeraryFxType;
  else if (levelType == PLT_XSHLEVEL)
    colType = TXshColumn::ePaletteType;
  else if (levelType == SND_XSHLEVEL)
    colType = TXshColumn::eSoundType;
  else if (levelType == SND_TXT_XSHLEVEL)
    colType = TXshColumn::eSoundTextType;
  else if (levelType == MESH_XSHLEVEL)
    colType = TXshColumn::eMeshType;
  else
    assert(!"Unkown level type!");

  return colType;
}

//-----------------------------------------------------------------------------

bool TXshColumn::isRendered() const {
  if (!getXsheet() || !getFx()) return false;
  if (!isPreviewVisible()) return false;
  return getXsheet()->getFxDag()->isRendered(getFx());
}

/*
bool TXshColumn::isReference() const
{
  if(!getXsheet() || !getFx()) return true;
  if(getXsheet()->getFxDag()->getTerminalFxs()->containsFx(getFx())) return
false;
  return getFx()->getOutputConnectionCount()==0;
}
*/

//-----------------------------------------------------------------------------

bool TXshColumn::isControl() const {
  if (!getXsheet() || !getFx()) return false;
  return getXsheet()->getFxDag()->isControl(getFx());
  /*
TFx *fx = getFx();
if(!fx) return false;
if(!getXsheet()) return false;
if(getXsheet()->getFxDag()->getTerminalFxs()->containsFx(getFx())) return false;
for(int i=0;i<fx->getOutputConnectionCount();i++)
{
TFxPort *port = fx->getOutputConnection(i);
if(port->getOwnerFx()->getInputPort(0) != port)
return true;
}
return false;
*/
}

//-----------------------------------------------------------------------------
#ifdef LEVO
void TXshColumn::setCamstandNextState() {
  setCamstandVisible(!isCamstandVisible());

  if (Preferences::instance()->isCamStandOpacityEnabled()) {
    // camera stand, 3-state-toggle: notvisible -> visible+nottransparent ->
    // visible+transparent
    if (isCamstandVisible()) {
      if (isCamstandTransparent())
        setCamstandVisible(false);
      else
        setCamstandTransparent(true);
    } else {
      setCamstandVisible(true);
      setCamstandTransparent(false);
    }
  } else {
    setCamstandTransparent(false);
    setCamstandVisible(!isCamstandVisible());
  }
}
#endif
//-----------------------------------------------------------------------------

bool TXshColumn::isCamstandVisible() const {
  return (m_status & eCamstandVisible) == 0;
}

//-----------------------------------------------------------------------------
/*
bool TXshColumn::isCamstandTransparent() const
{
  return (m_status&eCamstandTransparent)!=0;
}

//-----------------------------------------------------------------------------


void TXshColumn::setCamstandTransparent(bool on)
{
  const int mask = eCamstandTransparent;
  if(!on) m_status&=~mask; else m_status|=mask;
}
*/

void TXshColumn::setCamstandVisible(bool on) {
  const int mask = eCamstandVisible;
  if (on)
    m_status &= ~mask;
  else
    m_status |= mask;
}

//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------

bool TXshColumn::isPreviewVisible() const {
  return (m_status & ePreviewVisible) == 0;
}

//-----------------------------------------------------------------------------

void TXshColumn::setPreviewVisible(bool on) {
  const int mask = ePreviewVisible;
  if (on)
    m_status &= ~mask;
  else
    m_status |= mask;
}

//-----------------------------------------------------------------------------

bool TXshColumn::isLocked() const { return (m_status & eLocked) != 0; }

//-----------------------------------------------------------------------------

void TXshColumn::lock(bool on) {
  const int mask = eLocked;
  if (on)
    m_status |= mask;
  else
    m_status &= ~mask;
}

//-----------------------------------------------------------------------------

bool TXshColumn::isMask() const { return (m_status & eMasked) != 0; }

//-----------------------------------------------------------------------------

void TXshColumn::setIsMask(bool on) {
  const int mask = eMasked;
  if (on)
    m_status |= mask;
  else
    m_status &= ~mask;
}