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adjustment.h

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00001 /*  Inti: Integrated Foundation Classes
00002  *  Copyright (C) 2002 The Inti Development Team.
00003  *  Copyright (C) 2000 Red Hat, Inc.
00004  *
00005  *  This program is free software; you can redistribute it and/or modify
00006  *  it under the terms of the GNU General Public License as published by
00007  *  the Free Software Foundation; either version 2 of the License, or
00008  *  (at your option) any later version.
00009  *
00010  *  This program is distributed in the hope that it will be useful,
00011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  *  GNU Library General Public License for more details.
00014  *
00015  *  You should have received a copy of the GNU Library General Public License
00016  *  along with this program; if not, write to the Free Software
00017  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00018  */
00019  
00027 
00028 #ifndef INTI_GTK_ADJUSTMENT_H
00029 #define INTI_GTK_ADJUSTMENT_H
00030 
00031 #ifndef INTI_GTK_OBJECT_H
00032 #include <inti/gtk/object.h>
00033 #endif
00034 
00035 #ifndef __GTK_ADJUSTMENT_H__
00036 #include <gtk/gtkadjustment.h>
00037 #endif
00038 
00039 namespace Inti {
00040 
00041 namespace Gtk {
00042 
00043 class AdjustmentClass;
00044 
00058 
00059 class Adjustment : public Object
00060 {
00061         friend class G::Object;
00062         friend class AdjustmentClass;
00063 
00064         Adjustment(const Adjustment&);
00065         Adjustment& operator=(const Adjustment&);
00066         
00067 protected:
00070 
00071         explicit Adjustment(GtkAdjustment *adjustment, bool reference = false);
00078 
00082 
00083         virtual void on_changed();
00085 
00086         virtual void on_value_changed();
00088         
00090 //  Signals
00091 
00092         typedef G::Signal0<void> ChangedSignalType;
00093         typedef G::SignalProxy<TypeInstance, ChangedSignalType> ChangedSignalProxy;
00094         static const ChangedSignalType changed_signal;
00095 
00096         typedef G::Signal0<void> ValueChangedSignalType;
00097         typedef G::SignalProxy<TypeInstance, ValueChangedSignalType> ValueChangedSignalProxy;
00098         static const ValueChangedSignalType value_changed_signal;
00099 
00100 public:
00103 
00104         Adjustment();
00106 
00107         Adjustment(double lower, double upper, double step_increment, double page_increment, double page_size);
00121 
00122         Adjustment(double value, double lower, double upper, double step_increment, double page_increment, double page_size);
00133 
00134         virtual ~Adjustment();
00136         
00140 
00141         GtkAdjustment* gtk_adjustment() const { return (GtkAdjustment*)instance; }
00143 
00144         GtkAdjustmentClass* gtk_adjustment_class() const;
00146 
00147         operator GtkAdjustment* () const;
00149 
00150         double lower() const;
00152 
00153         double upper() const;
00155 
00156         double step_increment() const;
00158 
00159         double page_increment() const;
00161 
00162         double page_size() const;
00164 
00165         double get_value() const;
00167 
00171 
00172         void changed();
00176 
00177         void value_changed();
00181 
00182         void clamp_page(double lower, double upper);    
00191 
00192         void set_value(double value);
00195 
00196         void set_range(double lower, double upper, double step_increment, double page_increment, double page_size);
00206 
00210 
00211         const ChangedSignalProxy sig_changed()
00212         {
00213                 return ChangedSignalProxy(this, &changed_signal);
00214         }
00217 
00218         const ValueChangedSignalProxy sig_value_changed()
00219         {
00220                 return ValueChangedSignalProxy(this, &value_changed_signal);
00221         }
00223         
00225 };
00226 
00227 } // namespace Gtk
00228 
00229 } // namespace Inti
00230 
00231 #endif // INTI_GTK_ADJUSTMENT_H
00232 
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