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curve.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  
00024 
00025 #ifndef INTI_GTK_CURVE_H
00026 #define INTI_GTK_CURVE_H
00027 
00028 #ifndef INTI_GTK_DRAWING_AREA_H
00029 #include <inti/gtk/drawingarea.h>
00030 #endif
00031 
00032 #ifndef __GTK_CURVE_H__
00033 #include <gtk/gtkcurve.h>
00034 #endif
00035 
00036 namespace Inti {
00037 
00038 namespace Gtk {
00039 
00040 class CurveClass;
00041 
00045 
00046 enum CurveType
00047 {
00048         CURVE_TYPE_LINEAR = GTK_CURVE_TYPE_LINEAR, 
00049         CURVE_TYPE_SPLINE = GTK_CURVE_TYPE_SPLINE, 
00050         CURVE_TYPE_FREE = GTK_CURVE_TYPE_FREE 
00051 };
00052 
00068 
00069 class Curve : public DrawingArea
00070 {
00071         friend class G::Object;
00072         friend class CurveClass;
00073 
00074         Curve(const Curve&);
00075         Curve& operator=(const Curve&);
00076 
00077 protected:
00080 
00081         explicit Curve(GtkCurve *curve, bool reference = false);
00088 
00092 
00093         virtual void on_curve_type_changed();
00097 
00099 //  Properties
00100 
00101         typedef G::Property<CurveType, int> CurveTypePropertyType;
00102         typedef G::PropertyProxy<G::Object, CurveTypePropertyType> CurveTypePropertyProxy;
00103         static const CurveTypePropertyType curve_type_property;
00104 
00105         typedef G::Property<float> MinXPropertyType;
00106         typedef G::PropertyProxy<G::Object, MinXPropertyType> MinXPropertyProxy;
00107         static const MinXPropertyType min_x_property;
00108 
00109         typedef G::Property<float> MinYPropertyType;
00110         typedef G::PropertyProxy<G::Object, MinYPropertyType> MinYPropertyProxy;
00111         static const MinYPropertyType min_y_property;
00112 
00113         typedef G::Property<float> MaxXPropertyType;
00114         typedef G::PropertyProxy<G::Object, MaxXPropertyType> MaxXPropertyProxy;
00115         static const MaxXPropertyType max_x_property;
00116 
00117         typedef G::Property<float> MaxYPropertyType;
00118         typedef G::PropertyProxy<G::Object, MaxYPropertyType> MaxYPropertyProxy;
00119         static const MaxYPropertyType max_y_property;
00120 
00121 //  Signals
00122 
00123         typedef G::Signal0<void> CurveTypeChangedSignalType;
00124         typedef G::SignalProxy<TypeInstance, CurveTypeChangedSignalType> CurveTypeChangedSignalProxy;
00125         static const CurveTypeChangedSignalType curve_type_changed_signal;
00126 
00127 public:
00130 
00131         Curve();
00133 
00134         virtual ~Curve();
00136         
00140 
00141         GtkCurve* gtk_curve() const { return (GtkCurve*)instance; }
00143 
00144         GtkCurveClass* gtk_curve_class() const;
00146 
00147         operator GtkCurve* () const;
00149 
00150         void get_vector(int count, float data[]) const;
00154 
00158 
00159         void reset();
00163 
00164         void set_gamma(float gamma);
00171         
00172         void set_range(float min_x, float max_x, float min_y, float max_y);
00180 
00181         void set_vector(int count, float data[]);
00185 
00186         void set_curve_type(CurveType type);
00192 
00196         
00197         const CurveTypePropertyProxy prop_curve_type()
00198         {
00199                 return CurveTypePropertyProxy(this, &curve_type_property);
00200         }
00202 
00203         const MinXPropertyProxy prop_min_x()
00204         {
00205                 return MinXPropertyProxy(this, &min_x_property);
00206         }
00208 
00209         const MinYPropertyProxy prop_min_y()
00210         {
00211                 return MinYPropertyProxy(this, &min_y_property);
00212         }
00214 
00215         const MaxXPropertyProxy prop_max_x()
00216         {
00217                 return MaxXPropertyProxy(this, &max_x_property);
00218         }
00220 
00221         const MaxYPropertyProxy prop_max_y()
00222         {
00223                 return MaxYPropertyProxy(this, &max_y_property);
00224         }
00226 
00230 
00231         const CurveTypeChangedSignalProxy sig_curve_type_changed()
00232         {
00233                 return CurveTypeChangedSignalProxy(this, &curve_type_changed_signal);
00234         }
00236 
00238 };
00239 
00240 } // namespace Gtk
00241 
00242 } // namespace Inti
00243 
00244 #endif // INTI_GTK_CURVE_H
00245 
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