vaikene.ee Git - evaf/blob - src/main/GUI/fatalerr.h

   1 /**
   2  * @file main/GUI/fatalerr.h
   3  * @brief Fatal error message dialog box
   4   * @author Enar Vaikene
   5 *
   6  * Copyright (c) 2011-2019 Enar Vaikene
   7  *
   8  * This file is part of the eVaf C++ cross-platform application development framework.
   9  *
  10  * This file can be used under the terms of the GNU General Public License
  11  * version 3.0 as published by the Free Software Foundation and appearing in
  12  * the file LICENSE included in the packaging of this file. Please review the
  13  * the following information to ensure the GNU General Public License version
  14  * 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
  15  *
  16  * Alternatively, this file may be used in accordance with the Commercial License
  17  * Agreement provided with the Software.
  18  */
  19
  20 #ifndef __GUI_FATALERR_H
  21 #  define __GUI_FATALERR_H
  22
  23 #include <QDialog>
  24
  25 class QTimerEvent;
  26
  27 namespace eVaf {
  28 namespace GUI {
  29 namespace Internal {
  30
  31 /**
  32  * Fatal error message dialog box
  33  *
  34  * The fatal error message dialog box shows a fatal error message and starts a count-down
  35  * to close the dialog box and abort the application. Users can click on the Ignore button
  36  * to keep the application running for diagnostics.
  37  */
  38 class FatalErr : public QDialog
  39 {
  40     Q_OBJECT
  41
  42 public:
  43
  44     /// Returns values
  45     enum Result {
  46         Abort       = 0,    ///< User clicked on the Abort button or the dialog box timed out
  47         Ignore      = 1     ///< User clicked on the Ignore button
  48     };
  49
  50     /**
  51      * Creates the fatal error message dialog box
  52      * @param title Title of the dialog box
  53      * @param text Text shown on the dialog box
  54      * @param parent Optional parent widget
  55      */
  56     FatalErr(QString const & title, QString const & text, QWidget * parent = nullptr);
  57
  58     /**
  59      * Shows a fatal error message dialog box
  60      * @param title Title of the dialog box
  61      * @param text Text shown on the dialog box
  62      * @param parent Optional parent widget
  63      * @return The result code
  64      */
  65     static int message(QString const & title, QString const & text, QWidget * parent = nullptr);
  66
  67
  68 protected:
  69
  70     /// Timer event handler
  71     virtual void timerEvent(QTimerEvent *);
  72
  73
  74 private slots:
  75
  76     /// Ignore button clicked
  77     void ignoreClicked();
  78
  79     /// Abort button clicked
  80     void abortClicked();
  81
  82
  83 private:
  84
  85     /// Count-down time in secons
  86     static int const Timer = 60;
  87
  88     /// Count-down timer
  89     int mTimer;
  90
  91     /// The Abort button
  92     QPushButton * wAbort;
  93
  94 };
  95
  96 } // namespace eVaf::GUI::Internal
  97 } // namespace eVaf::GUI
  98 } // namespace eVaf
  99
 100 #endif // fatalerr.h