editors/sc-ide/widgets/util/popup_widget.hpp

   1 /*
   2     SuperCollider Qt IDE
   3     Copyright (c) 2012 Jakob Leben & Tim Blechmann
   4     http://www.audiosynth.com
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
  19 */
  20
  21 #ifndef SCIDE_WIDGETS_UTIL_POPUP_WIDGET_HPP_INCLUDED
  22 #define SCIDE_WIDGETS_UTIL_POPUP_WIDGET_HPP_INCLUDED
  23
  24 #include <QWidget>
  25 #include <QEventLoop>
  26 #include <QPointer>
  27
  28 namespace ScIDE {
  29
  30 class PopUpWidget : public QWidget
  31 {
  32     Q_OBJECT
  33
  34 public:
  35     enum Result {
  36         Rejected = 0,
  37         Accepted
  38     };
  39
  40 public:
  41     explicit PopUpWidget( QWidget * parent = 0 );
  42
  43     virtual ~PopUpWidget();
  44
  45     int exec( const QPoint & pos );
  46
  47     void popup( const QPoint & pos );
  48
  49 public slots:
  50
  51     void accept()
  52     {
  53         done(Accepted);
  54     }
  55
  56     void reject()
  57     {
  58         done(Rejected);
  59     }
  60
  61     void done(int result)
  62     {
  63         mResult = result;
  64         hide();
  65         quit();
  66     }
  67
  68 signals:
  69     void finished(int result);
  70
  71 private:
  72     void quit()
  73     {
  74         if (mEventLoop) {
  75             mEventLoop->exit();
  76             mEventLoop = 0;
  77         }
  78     }
  79
  80 protected:
  81     virtual void hideEvent( QHideEvent *e )
  82     {
  83         quit();
  84         emit finished(mResult);
  85     }
  86
  87     virtual void keyPressEvent( QKeyEvent *ke );
  88
  89     virtual void showEvent( QShowEvent * );
  90
  91 private:
  92
  93     QEventLoop *mEventLoop;
  94     int mResult;
  95 };
  96
  97 } // namespace ScIDE
  98
  99 #endif