1 #ifndef oxygenscrollbardata_h 2 #define oxygenscrollbardata_h 3 /* 4 * this file is part of the oxygen gtk engine 5 * Copyright (c) 2010 Hugo Pereira Da Costa <hugo.pereira@free.fr> 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or(at your option ) any later version. 11 * 12 * This library 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 GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, write to the Free 19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, 20 * MA 02110-1301, USA. 21 */ 22 23 #include "oxygensignal.h" 24 #include "oxygentimer.h" 25 26 #include <gtk/gtk.h> 27 28 namespace Oxygen 29 { 30 // track scrollbars 31 class ScrollBarData 32 { 33 34 public: 35 36 //! constructor ScrollBarData(void)37 ScrollBarData( void ): 38 _target( 0L ), 39 _updatesDelayed( false ), 40 _delay( 10 ), 41 _locked( false ) 42 {} 43 44 //! destructor ~ScrollBarData(void)45 virtual ~ScrollBarData( void ) 46 { disconnect( _target ); } 47 48 //! setup connections 49 void connect( GtkWidget* ); 50 51 //! disconnect 52 void disconnect( GtkWidget* ); 53 54 //! toggle delayed updates setUpdatesDelayed(bool value)55 void setUpdatesDelayed( bool value ) 56 { _updatesDelayed = value; } 57 58 //! set delay setDelay(int value)59 void setDelay( int value ) 60 { _delay = value; } 61 62 protected: 63 64 static void valueChanged( GtkRange*, gpointer ); 65 66 //! delayed update 67 static gboolean delayedUpdate( gpointer ); 68 69 private: 70 71 //! pointer to associated widget 72 GtkWidget* _target; 73 74 //! true if updates are delayed 75 bool _updatesDelayed; 76 77 //! update delay 78 int _delay; 79 80 //! timer 81 Timer _timer; 82 83 //! true if next update must be delayed 84 bool _locked; 85 86 //! signal 87 Signal _valueChangedId; 88 89 }; 90 91 } 92 93 #endif 94