src/ui/GestureWatcher.h

   1 /* Shopper
   2  * Copyright (C) 2008 David Greaves
   3  *
   4  * This software is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public License
   6  * as published by the Free Software Foundation; either version 2.1 of
   7  * the License, or (at your option) any later version.
   8  *
   9  * This software is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this software; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  17  * 02110-1301 USA
  18  *
  19  */
  20 #ifndef GESTUREWATCHER_H
  21 #define GESTUREWATCHER_H
  22
  23 #include "shopper.h"           // automake, i8n, gettext
  24 #include "Gesture.h"
  25 #include "GestureReader.h"
  26 #include <QWidget>
  27 #include <QMouseEvent>
  28
  29 class GestureWatcher : public QObject
  30 {
  31 public:
  32         static GestureWatcher* getGestureWatcher();
  33         bool connect(QWidget *w, const Gesture &g,
  34                                  QObject *receiver, const char * method);
  35         bool disconnect(QWidget *w, const Gesture &g = Gesture(""),
  36                                  QObject *receiver = 0, const char * method = 0);
  37         //  w             disconnect all gestures from this widget
  38         //  w,g           disconnect all target/methods for this gestures on this widget
  39         //  w,g,r         disconnect all methods for this target for this gestures on this widget
  40         //  w,g,r,m       disconnect this methods for this target for this gestures on this widget
  41
  42 protected:
  43         GestureWatcher();
  44     ~GestureWatcher();
  45
  46         // Manage the heirarchy of widgets
  47         void registerHeirarchyForGestures(QObject *top);
  48         void deregisterHeirarchyForGestures(QObject *top);
  49
  50         // manage incoming events
  51         bool eventFilter( QObject *obj, QEvent *event );
  52         void timerEvent(QTimerEvent *event);
  53         void replayEvents();
  54
  55         // Helper
  56         void clearEvents();
  57
  58         // Private data structure...
  59         struct Private;
  60         struct WidgetInfo;
  61         struct Watched;
  62
  63         struct Private *p;
  64         // The singleton
  65         static GestureWatcher* theWatcher;
  66 };
  67
  68
  69
  70 #endif //GESTUREWATCHER_H