/** -*- mode: c++ ; c-basic-offset: 2 -*-
 *
 *  @file OverrideCursor.cpp
 *
 *  Copyright 2017 Sebastien Fourey
 *
 *  This file is part of G'MIC-Qt, a generic plug-in for raster graphics
 *  editors, offering hundreds of filters thanks to the underlying G'MIC
 *  image processing framework.
 *
 *  gmic_qt is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  gmic_qt is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with gmic_qt.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#include "OverrideCursor.h"
#include <QApplication>
#include <QDebug>
#include "Common.h"

namespace GmicQt
{
bool OverrideCursor::_waiting = false;
bool OverrideCursor::_pointingHand = false;

void OverrideCursor::setWaiting(bool waiting)
{
  if (waiting == _waiting) {
    return;
  }
  _waiting = waiting;
  updateCurrentCursor();
}

void OverrideCursor::setPointingHand(bool pointingHand)
{
  if (pointingHand == _pointingHand) {
    return;
  }
  _pointingHand = pointingHand;
  updateCurrentCursor();
}

void OverrideCursor::updateCurrentCursor()
{
  while (QApplication::overrideCursor()) {
    QApplication::restoreOverrideCursor();
  }
  if (_pointingHand) {
    QApplication::setOverrideCursor(Qt::PointingHandCursor);
  } else if (_waiting) {
    QApplication::setOverrideCursor(Qt::WaitCursor);
  }
}

bool OverrideCursor::currentCursorIsWaiting()
{
  return QApplication::overrideCursor() && QApplication::overrideCursor()->shape() == Qt::WaitCursor;
}

bool OverrideCursor::currentCursorIsPointingHand()
{
  return QApplication::overrideCursor() && QApplication::overrideCursor()->shape() == Qt::PointingHandCursor;
}

} // namespace GmicQt
