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kdevelop'UndoListBox (./kdevelop/kdevelop/kwrite/undohistory.h:89)

class UndoListBox : public QListBox
{
  Q_OBJECT

  public:
    UndoListBox(QWidget * parent=0, const char * name=0, WFlags f=0);
    virtual ~UndoListBox();

    int selCount();
    void setSelCount(int count);

    void insertItem (const QString &text, int index = -1);
    void removeItem (int index);
    void clear();

  protected:
    int   _selCount;

  signals:
    void sigSelected(int);

  protected slots:
    void _slotSelectionChanged();

};

kdevelop'UndoListBox::UndoListBox() (./kdevelop/kdevelop/kwrite/undohistory.cpp:169)

UndoListBox::UndoListBox(QWidget *parent, const char *name, WFlags f)
  : QListBox(parent, name, f)
{
  _selCount = 0;
  setSelectionMode(Extended);
  connect(this, SIGNAL(highlighted(int)), this, SLOT(_slotSelectionChanged()));
  connect(this, SIGNAL(selectionChanged()), this, SLOT(_slotSelectionChanged()));
}

kdevelop'UndoListBox::~UndoListBox() (./kdevelop/kdevelop/kwrite/undohistory.cpp:178)

UndoListBox::~UndoListBox()
{}

kdevelop'UndoListBox::insertItem() (./kdevelop/kdevelop/kwrite/undohistory.cpp:181)

void UndoListBox::insertItem (const QString &text, int index)
{
  bool sig = false;

  if (count() == 0)
    sig = true;
  else if (index > -1)
    sig = (isSelected(index));

  QListBox::insertItem(text, index);

  if (sig)
    _slotSelectionChanged();
}

kdevelop'UndoListBox::removeItem() (./kdevelop/kdevelop/kwrite/undohistory.cpp:196)

void UndoListBox::removeItem (int index)
{
  bool sig;

  if (count() == 1)
    sig = true;
  else if (index == -1)
    sig = (isSelected(count() - 1));
  else
    sig = (isSelected(index));

  QListBox::removeItem(index);

  if (sig)
    _slotSelectionChanged();
}

kdevelop'UndoListBox::clear() (./kdevelop/kdevelop/kwrite/undohistory.cpp:213)

void UndoListBox::clear()
{
  bool sig = (count() > 0);

  QListBox::clear();

  if (sig)
    _slotSelectionChanged();
}

kdevelop'UndoListBox::selCount() (./kdevelop/kdevelop/kwrite/undohistory.cpp:223)

int UndoListBox::selCount()
{
  return _selCount;
}

kdevelop'UndoListBox::setSelCount() (./kdevelop/kdevelop/kwrite/undohistory.cpp:228)

void UndoListBox::setSelCount(int count)
{
  if (count == _selCount)
    return;

  if (count < 1 || count > (int)this->count())
    return;

  setCurrentItem(count - 1);
}

// make sure the first item is selected, and that there are no holes

kdevelop'UndoListBox::_slotSelectionChanged() (./kdevelop/kdevelop/kwrite/undohistory.cpp:240)

void UndoListBox::_slotSelectionChanged()
{
  int     count = this->count();

  if (! count) {
    if (_selCount != 0) {
      _selCount = 0;
      emit sigSelected(_selCount);
    }
    return;
  }

  if (currentItem() < 0)
    setCurrentItem(0);

  int     i;
  int     currItem = currentItem();
  int     max = (currItem+1 > _selCount ? currItem+1 : _selCount);

  for (i = 0 ; i < max ; i++) {
    if (i > currItem) {
      if (isSelected(i)) {
        setSelected(i, false);
      }
    } else {
      if (! isSelected(i)) {
        setSelected(i, true);
      }
    }
  }

  if (_selCount != currItem + 1) {
    _selCount = currItem + 1;
    emit sigSelected(_selCount);
  }
}