FlowCanvas 0.7.1
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00001 /* This file is part of FlowCanvas. 00002 * Copyright (C) 2007-2009 David Robillard <http://drobilla.net> 00003 * 00004 * FlowCanvas is free software; you can redistribute it and/or modify it under the 00005 * terms of the GNU General Public License as published by the Free Software 00006 * Foundation; either version 2 of the License, or (at your option) any later 00007 * version. 00008 * 00009 * FlowCanvas is distributed in the hope that it will be useful, but WITHOUT ANY 00010 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 00011 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details. 00012 * 00013 * You should have received a copy of the GNU General Public License along 00014 * with this program; if not, write to the Free Software Foundation, Inc., 00015 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA 00016 */ 00017 00018 #ifndef FLOWCANVAS_PORT_HPP 00019 #define FLOWCANVAS_PORT_HPP 00020 00021 #include <stdint.h> 00022 00023 #include <algorithm> 00024 #include <list> 00025 #include <string> 00026 #include <vector> 00027 00028 #include <boost/shared_ptr.hpp> 00029 #include <boost/weak_ptr.hpp> 00030 00031 #include <libgnomecanvasmm.h> 00032 00033 #include "flowcanvas/Connectable.hpp" 00034 00035 namespace FlowCanvas { 00036 00037 class Connection; 00038 class Module; 00039 00040 00041 static const int PORT_LABEL_SIZE = 8000; // in thousandths of a point 00042 00043 00050 class Port : public Gnome::Canvas::Group, public Connectable 00051 { 00052 public: 00053 Port(boost::shared_ptr<Module> module, 00054 const std::string& name, 00055 bool is_input, 00056 uint32_t color); 00057 00058 virtual ~Port(); 00059 00060 void disconnect_all(); 00061 00062 virtual Gnome::Art::Point src_connection_point(); 00063 virtual Gnome::Art::Point dst_connection_point(const Gnome::Art::Point& src); 00064 virtual Gnome::Art::Point connection_point_vector(double dx, double dy); 00065 00066 boost::weak_ptr<Module> module() const { return _module; } 00067 00068 void set_fill_color(uint32_t c) { _rect->property_fill_color_rgba() = c; } 00069 00070 void show_label(bool b); 00071 void set_selected(bool b); 00072 bool selected() const { return _selected; } 00073 00074 void set_highlighted(bool highlight, 00075 bool highlight_parent=true, 00076 bool highlight_connections=true, 00077 bool raise_connections=true); 00078 00079 void zoom(float z); 00080 00081 void popup_menu(guint button, guint32 activate_time) { 00082 if ( ! _menu) 00083 create_menu(); 00084 if (_menu) 00085 _menu->popup(button, activate_time); 00086 } 00087 00088 virtual void create_menu(); 00089 void set_menu(Gtk::Menu* m); 00090 00091 Gtk::Menu* menu() const { return _menu; } 00092 00093 double width() const { return _width; } 00094 void set_width(double w); 00095 void set_height(double h); 00096 00097 double border_width() const { return _border_width; } 00098 void set_border_width(double w); 00099 00100 double natural_width() const; 00101 00102 const std::string& name() const { return _name; } 00103 virtual void set_name(const std::string& n); 00104 00105 bool is_input() const { return _is_input; } 00106 bool is_output() const { return !_is_input; } 00107 uint32_t color() const { return _color; } 00108 double height() const { return _height; } 00109 00110 virtual bool is_toggled() const { return _toggled; } 00111 virtual void set_toggled(bool b) { _toggled = b; } 00112 virtual void toggle(bool signal=true); 00113 00114 virtual void set_control(float value, bool signal=true); 00115 virtual void set_control_min(float min); 00116 virtual void set_control_max(float max); 00117 00118 float control_value() const { return _control ? _control->value : 0.0f; } 00119 float control_min() const { return _control ? _control->min : 0.0f; } 00120 float control_max() const { return _control ? _control->max : 1.0f; } 00121 00122 void show_control(); 00123 void hide_control(); 00124 00125 inline bool operator==(const std::string& name) { return (_name == name); } 00126 00127 sigc::signal<void> signal_renamed; 00128 sigc::signal<void,float> signal_control_changed; 00129 00130 protected: 00131 friend class Canvas; 00132 00133 void on_menu_hide(); 00134 00135 boost::weak_ptr<Module> _module; 00136 std::string _name; 00137 Gnome::Canvas::Text* _label; 00138 Gnome::Canvas::Rect* _rect; 00139 Gtk::Menu* _menu; 00140 00142 struct Control { 00143 explicit Control(Gnome::Canvas::Rect* r) 00144 : rect(r) 00145 , value(0.0f) 00146 , min(0.0f) 00147 , max(1.0f) 00148 {} 00149 00150 ~Control() { 00151 delete rect; 00152 } 00153 00154 Gnome::Canvas::Rect* rect; 00155 float value; 00156 float min; 00157 float max; 00158 }; 00159 00160 Control* _control; 00161 00162 double _width; 00163 double _height; 00164 double _border_width; 00165 uint32_t _color; 00166 00167 bool _is_input :1; 00168 bool _selected :1; 00169 bool _toggled :1; 00170 }; 00171 00172 typedef std::vector<boost::shared_ptr<Port> > PortVector; 00173 00174 00175 } // namespace FlowCanvas 00176 00177 #endif // FLOWCANVAS_PORT_HPP