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#include "hookselection.h"
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#include "toonz/txshlevelhandle.h"
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#include "toonz/txshsimplelevel.h"
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#include "toonz/txsheethandle.h"
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#include "toonz/tstageobjecttree.h"
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#include "tools/tool.h"
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#include "tools/toolhandle.h"
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#include "toonzqt/selectioncommandids.h"
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#include <qapplication></qapplication>
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#include <qclipboard></qclipboard>
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//=============================================================================
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//
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// HookUndo
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//
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//=============================================================================
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HookUndo::HookUndo(const TXshLevelP &level) : m_level(level) {
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  HookSet *hookSet = m_level->getHookSet();
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  assert(hookSet);
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  if (hookSet) m_oldHooks = *hookSet;
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}
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//---------------------------------------------------------------------------
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HookUndo::~HookUndo() {}
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//---------------------------------------------------------------------------
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void HookUndo::onAdd() {
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  HookSet *hookSet = m_level->getHookSet();
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  assert(hookSet);
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  if (hookSet) m_newHooks = *hookSet;
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}
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//---------------------------------------------------------------------------
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void HookUndo::assignHookSet(const HookSet &src) const {
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  HookSet *hookSet = m_level->getHookSet();
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  assert(hookSet);
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  if (hookSet) *hookSet = src;
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  TTool::getApplication()
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      ->getCurrentXsheet()
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      ->getXsheet()
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      ->getStageObjectTree()
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      ->invalidateAll();
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  TTool *tool = TTool::getApplication()->getCurrentTool()->getTool();
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  if (tool) {
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    tool->updateMatrix();
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    tool->invalidate();
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  }
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}
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//---------------------------------------------------------------------------
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void HookUndo::undo() const { assignHookSet(m_oldHooks); }
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//---------------------------------------------------------------------------
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void HookUndo::redo() const { assignHookSet(m_newHooks); }
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//---------------------------------------------------------------------------
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int HookUndo::getSize() const { return sizeof(*this) + 2 * sizeof(HookSet); }
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//=============================================================================
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//
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// HooksData
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//
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//=============================================================================
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HooksData::HooksData(const TXshLevelP &level) : m_level(level) {}
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//---------------------------------------------------------------------------
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HooksData::~HooksData() {}
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//---------------------------------------------------------------------------
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HooksData *HooksData::clone() const {
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  HooksData *newData       = new HooksData(m_level);
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  newData->m_hookPositions = m_hookPositions;
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  return newData;
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}
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//---------------------------------------------------------------------------
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void HooksData::storeHookPositions(const std::vector<int> &ids) {</int>
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  if (ids.empty()) return;
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  TTool::Application *app = TTool::getApplication();
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  TXshLevelP level        = app->getCurrentLevel()->getLevel();
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  assert(level == m_level);
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  if (level != m_level || !m_level || m_level->getSimpleLevel()->isReadOnly())
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    return;
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  HookSet *hookSet = m_level->getHookSet();
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  if (!hookSet) return;
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  TFrameId fid = app->getCurrentTool()->getTool()->getCurrentFid();
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  int i, idsSize = ids.size();
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  m_hookPositions.clear();
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  for (i = 0; i < idsSize; i++) {
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    Hook *hook = hookSet->getHook(ids[i]);
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    assert(hook);
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    if (!hook) continue;
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    TPointD aPos = hook->getAPos(fid);
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    TPointD bPos = hook->getBPos(fid);
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    m_hookPositions.push_back(HookPosition(ids[i], aPos, bPos));
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  }
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}
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//---------------------------------------------------------------------------
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void HooksData::restoreHookPositions() const {
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  if (m_hookPositions.empty()) return;
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  TTool::Application *app = TTool::getApplication();
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  TXshLevelP level        = app->getCurrentLevel()->getLevel();
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  assert(level = m_level);
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  if (level != m_level || !m_level || m_level->getSimpleLevel()->isReadOnly())
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    return;
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  HookSet *hookSet = m_level->getHookSet();
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  if (!hookSet) return;
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  TFrameId fid = app->getCurrentTool()->getTool()->getCurrentFid();
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  int i, posSize = m_hookPositions.size();
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  for (i = 0; i < posSize; i++) {
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    HookPosition hookPos = m_hookPositions[i];
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    Hook *hook           = hookSet->getHook(hookPos.m_id);
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    assert(hook);
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    if (!hook) continue;
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    hook->setAPos(fid, hookPos.m_aPos);
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    hook->setBPos(fid, hookPos.m_bPos);
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  }
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}
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//===========================================================================
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//
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// HookSelection
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//
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//===========================================================================
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HookSelection::HookSelection() {}
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//---------------------------------------------------------------------------
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HookSelection::~HookSelection() {}
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//---------------------------------------------------------------------------
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TSelection *HookSelection::clone() const { return new HookSelection(*this); }
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//---------------------------------------------------------------------------
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void HookSelection::select(int id, int side) {
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  m_hooks.insert(std::make_pair(id, side));
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}
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//---------------------------------------------------------------------------
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void HookSelection::unselect(int id, int side) {
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  m_hooks.erase(std::make_pair(id, side));
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}
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//---------------------------------------------------------------------------
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bool HookSelection::isSelected(int id, int side) const {
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  return m_hooks.count(std::make_pair(id, side)) > 0;
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}
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//---------------------------------------------------------------------------
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void HookSelection::invertSelection(int id, int side) {
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  if (isSelected(id, side))
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    unselect(id, side);
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  else
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    select(id, side);
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}
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//---------------------------------------------------------------------------
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bool HookSelection::isEmpty() const { return m_hooks.empty(); }
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//---------------------------------------------------------------------------
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HookSet *HookSelection::getHookSet() const {
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  TXshLevel *xl = TTool::getApplication()->getCurrentLevel()->getLevel();
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  if (!xl) return 0;
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  return xl->getHookSet();
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}
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//---------------------------------------------------------------------------
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bool HookSelection::select(const TSelection *s) {
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  if (const HookSelection *hs = dynamic_cast<const *="" hookselection="">(s)) {</const>
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    m_level = hs->m_level;
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    m_hooks = hs->m_hooks;
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    return true;
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  } else
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    return false;
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}
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//---------------------------------------------------------------------------
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void HookSelection::enableCommands() {
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  enableCommand(this, MI_Clear, &HookSelection::deleteSelectedHooks);
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  enableCommand(this, MI_Copy, &HookSelection::copySelectedHooks);
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  enableCommand(this, MI_Cut, &HookSelection::cutSelectedHooks);
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  enableCommand(this, MI_Paste, &HookSelection::pasteSelectedHooks);
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}
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//---------------------------------------------------------------------------
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void HookSelection::deleteSelectedHooks() {
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  TTool::Application *app = TTool::getApplication();
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  TTool *tool             = app->getCurrentTool()->getTool();
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  if (!app) return;
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  TXshLevel *xl    = app->getCurrentLevel()->getLevel();
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  HookSet *hookSet = xl->getHookSet();
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  if (!xl || !xl->getSimpleLevel() || !hookSet ||
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      xl->getSimpleLevel()->isReadOnly())
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    return;
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  HookUndo *undo = new HookUndo(xl->getSimpleLevel());
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  TFrameId fid   = tool->getCurrentFid();
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  for (int i = 0; i < hookSet->getHookCount(); i++) {
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    Hook *hook = hookSet->getHook(i);
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    if (!hook || hook->isEmpty()) continue;
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    if (isSelected(i, 1) && isSelected(i, 2))
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      hookSet->clearHook(hook);
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    else if (isSelected(i, 2))
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      hook->setBPos(fid, hook->getAPos(fid));
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    else if (isSelected(i, 1))
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      hook->setAPos(fid, hook->getBPos(fid));
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  }
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  TUndoManager::manager()->add(undo);
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  app->getCurrentXsheet()->getXsheet()->getStageObjectTree()->invalidateAll();
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  tool->invalidate();
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}
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//---------------------------------------------------------------------------
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void HookSelection::copySelectedHooks() {
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  if (isEmpty()) return;
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  std::vector<int> ids;</int>
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  std::set<std::pair<int, int="">>::iterator it;</std::pair<int,>
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  for (it = m_hooks.begin(); it != m_hooks.end(); it++) {
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    if (std::find(ids.begin(), ids.end(), it->first) == ids.end())
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      ids.push_back(it->first);
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  }
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  TXshLevel *xl   = TTool::getApplication()->getCurrentLevel()->getLevel();
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  HooksData *data = new HooksData(xl);
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  data->storeHookPositions(ids);
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  QApplication::clipboard()->setMimeData(data);
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}
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//---------------------------------------------------------------------------
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void HookSelection::cutSelectedHooks() {
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  copySelectedHooks();
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  TXshLevel *xl    = TTool::getApplication()->getCurrentLevel()->getLevel();
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  TUndo *undo      = new HookUndo(xl);
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  HookSet *hookSet = xl->getHookSet();
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  std::set<std::pair<int, int="">>::iterator it;</std::pair<int,>
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  for (it = m_hooks.begin(); it != m_hooks.end(); it++) {
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    Hook *hook = hookSet->getHook(it->first);
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    assert(hook);
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    if (!hook) return;
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    TFrameId fid =
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        TTool::getApplication()->getCurrentTool()->getTool()->getCurrentFid();
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    hook->eraseFrame(fid);
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  }
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  TUndoManager::manager()->add(undo);
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  TTool::getApplication()->getCurrentTool()->getTool()->invalidate();
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}
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//---------------------------------------------------------------------------
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void HookSelection::pasteSelectedHooks() {
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  const QMimeData *data      = QApplication::clipboard()->mimeData();
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  const HooksData *hooksData = dynamic_cast<const *="" hooksdata="">(data);</const>
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  if (!hooksData) return;
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  TXshLevel *xl = TTool::getApplication()->getCurrentLevel()->getLevel();
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  TUndo *undo   = new HookUndo(xl);
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  hooksData->restoreHookPositions();
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  TUndoManager::manager()->add(undo);
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  TTool::getApplication()->getCurrentTool()->getTool()->invalidate();
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}