/*
Copyright 2015 Ian Jauslin

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include "pdfWindow.h"
#include "config.h"
#include <QKeyEvent>
#include <QDesktopWidget>
#include <QProgressBar>
#include <QBasicTimer>
#include <QTimer>
#include <cctype>

namespace Ui {
  class MainWindow;
  class SecondaryWindow;
}

class SecondaryWindow;
class TimeIndicator;

class MainWindow : public pdfWindow
{
  Q_OBJECT

 public:
  // index of main screen
  int nrMainScreen;
  // index of secondary screen
  int nrSecScreen;
  // timer counter
  int pres_time_step;
  SecondaryWindow* secondaryWindow;
  // slidelist
  QVector<int> slidelist;

  // constructor
  explicit MainWindow(QWidget *parent = 0);

  void setConfig(Config* config);

  //enable secondary screen
  void secondaryScreen();
  void exchangeScreens();
  void moveToScreen(QWidget* widget,int screen,QDesktopWidget* desktop);

  void nextPage();
  void previousPage();
  void gotoPage(int page);
  void nextSlide();
  void previousSlide();

  void showhideTimeBar();
  void startstopTimer();
  void resetTimer();

  // destructor
  ~MainWindow();

 private:
  // global comnfiguration object
  Config* conf;
  // presentation timer
  QBasicTimer pres_timer;
  // Main layout
  QVBoxLayout* layout;
  TimeIndicator* timebar;
  Ui::MainWindow *ui;

  void loadUi();
  void readSlidelist(char* path);
  void keyPressEvent(QKeyEvent* event);
  // to get arrow keys
  bool eventFilter(QObject *obj, QEvent *event);

  //called by pres_timer
  void timerEvent(QTimerEvent *event);

  // check whether a string is an integer
  bool check_int(const char* string);
};


class SecondaryWindow : public pdfWindow
{
  Q_OBJECT

 public:
  // constructor
  explicit SecondaryWindow(QWidget* parent = 0);
  // destructor
  ~SecondaryWindow();

 private:
  Ui::SecondaryWindow *ui;
  void loadUi();
};

// time progress bar
class TimeIndicator : public QProgressBar
{
  Q_OBJECT
 public:
  // constructor
  explicit TimeIndicator(QWidget* parent = 0);
  // destructore
  ~TimeIndicator();
  void setTime(int time,int maxtime);
};

#endif // MAINWINDOW_H