QtCollider/QWidgetProxy.h

   1 /************************************************************************
   2 *
   3 * Copyright 2010-2011 Jakob Leben (jakob.leben@gmail.com)
   4 *
   5 * This file is part of SuperCollider Qt GUI.
   6 *
   7 * This program is free software: you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License as published by
   9 * the Free Software Foundation, either version 3 of the License, or
  10 * (at your option) any later version.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 *
  20 ************************************************************************/
  21
  22 #ifndef QC_WIDGET_PROXY_H
  23 #define QC_WIDGET_PROXY_H
  24
  25 #include "QObjectProxy.h"
  26
  27 #include <QWidget>
  28 #include <QAtomicInt>
  29 #include <QMimeData>
  30
  31 namespace QtCollider {
  32   struct SetFocusEvent;
  33   struct SetAlwaysOnTopEvent;
  34   struct StartDragEvent;
  35 }
  36
  37 class QWidgetProxy : public QObjectProxy
  38 {
  39   Q_OBJECT
  40
  41 public:
  42
  43   enum GlobalEvent {
  44     KeyPress = 0x001,
  45     KeyRelease = 0x002
  46   };
  47
  48 public:
  49
  50   static void setGlobalEventEnabled ( GlobalEvent ev, bool b ) {
  51     int mask = _globalEventMask;
  52     if(b)
  53       mask |= ev;
  54     else
  55       mask &= ~ev;
  56     _globalEventMask = mask;
  57   }
  58
  59 public:
  60
  61   QWidgetProxy( QWidget *w, PyrObject *po );
  62
  63   void setKeyEventWidget( QWidget * );
  64
  65   void setMouseEventWidget( QWidget * );
  66
  67   bool alwaysOnTop();
  68
  69   void refresh();
  70
  71   void setLayout ( QObjectProxy *layoutProxy );
  72
  73   virtual bool setParent( QObjectProxy *parent );
  74
  75   inline QWidget *widget() { return static_cast<QWidget*>( object() ); }
  76
  77 protected:
  78
  79   virtual void customEvent( QEvent * );
  80
  81   virtual bool filterEvent( QObject *, QEvent *, EventHandlerData &, QList<QVariant> & args );
  82
  83 private Q_SLOTS:
  84
  85   void customPaint( QPainter * );
  86
  87 private:
  88   bool interpretMouseEvent( QObject *, QEvent *, QList<QVariant> &args );
  89   bool interpretMouseWheelEvent( QObject *, QEvent *, QList<QVariant> &args );
  90   bool interpretKeyEvent( QObject *, QEvent *, QList<QVariant> &args );
  91   bool interpretDragEvent( QObject *, QEvent *, QList<QVariant> &args );
  92
  93   void bringFrontEvent();
  94   void setFocusEvent( QtCollider::SetFocusEvent * );
  95   void setAlwaysOnTopEvent( QtCollider::SetAlwaysOnTopEvent * );
  96   void startDragEvent( QtCollider::StartDragEvent * );
  97
  98   static void sendRefreshEventRecursive( QWidget *w );
  99
 100   QWidget *_keyEventWidget;
 101   QWidget *_mouseEventWidget;
 102   static QAtomicInt _globalEventMask;
 103 };
 104
 105 namespace QtCollider {
 106
 107 struct SetFocusEvent : public QEvent
 108 {
 109   SetFocusEvent( bool b )
 110   : QEvent( (QEvent::Type) QtCollider::Event_Proxy_SetFocus ),
 111     focus(b)
 112   {}
 113   bool focus;
 114 };
 115
 116 struct SetAlwaysOnTopEvent  : public QEvent
 117 {
 118   SetAlwaysOnTopEvent( bool b )
 119   : QEvent( (QEvent::Type) QtCollider::Event_Proxy_SetAlwaysOnTop ),
 120     alwaysOnTop(b)
 121   {}
 122   bool alwaysOnTop;
 123 };
 124
 125 struct StartDragEvent : public QEvent
 126 {
 127   StartDragEvent( const QString &label_, QMimeData *data_ )
 128   : QEvent( (QEvent::Type) QtCollider::Event_Proxy_StartDrag ),
 129     label( label_ ), data( data_ )
 130   {}
 131   ~StartDragEvent() { delete data; }
 132   QString label;
 133   QMimeData *data;
 134 };
 135
 136 }
 137
 138 #endif //QC_WIDGET_PROXY_H