1 // new_gui.hxx - XML-configured GUI subsystem.
4 #define __NEW_GUI_HXX 1
6 #include <simgear/props/props.hxx>
7 #include <simgear/structure/subsystem_mgr.hxx>
8 #include <simgear/misc/sg_path.hxx>
12 #include <memory> // for auto_ptr on some systems
21 * XML-configured GUI subsystem.
23 * This subsystem manages the graphical user interface for FlightGear.
24 * It creates a menubar from the XML configuration file in
25 * $FG_ROOT/gui/menubar.xml, then stores the configuration properties
26 * for XML-configured dialog boxes found in $FG_ROOT/gui/dialogs/. It
27 * can show or hide the menubar, and can display any dialog by name.
29 class NewGUI : public SGSubsystem
44 * Initialize the GUI subsystem.
49 * Reinitialize the GUI subsystem. Reloads all XML dialogs.
51 virtual void reinit ();
54 * Bind properties for the GUI subsystem.
56 * Currently, this method binds the properties for showing and
62 * Unbind properties for the GUI subsystem.
64 virtual void unbind ();
67 * Update the GUI subsystem.
69 * Currently, this method is a no-op, because nothing the GUI
70 * subsystem does is time-dependent.
72 virtual void update (double delta_time_sec);
75 * Redraw the GUI picking up new GUI colors.
77 virtual void redraw ();
80 * Creates a new dialog box, using the same property format as the
81 * gui/dialogs configuration files. Does not display the
82 * resulting dialog. If a pre-existing dialog of the same name
83 * exists, it will be deleted. The node argument will be stored
84 * in the GUI subsystem using SGPropertNode_ptr reference counting.
85 * It should not be deleted by user code.
87 * @param node A property node containing the dialog definition
89 virtual void newDialog (SGPropertyNode* node);
92 * Display a dialog box.
94 * At initialization time, the subsystem reads all of the XML
95 * configuration files from the directory $FG_ROOT/gui/dialogs/.
96 * The configuration for each dialog specifies a name, and this
97 * method invokes the dialog with the name specified (if it
100 * @param name The name of the dialog box.
101 * @return true if the dialog exists, false otherwise.
103 virtual bool showDialog (const std::string &name);
107 * Close the currenty active dialog. This function is intended to
108 * be called from code (pui callbacks, for instance) that registers
109 * its dialog object as active via setActiveDialog(). Other
110 * user-level code should use the closeDialog(name) API.
112 * @return true if a dialog was active, false otherwise
114 virtual bool closeActiveDialog ();
117 * Close a named dialog, if it is open.
119 * @param name The name of the dialog box.
120 * @return true if the dialog was active, false otherwise.
122 virtual bool closeDialog (const std::string &name);
125 * Get dialog property tree's root node.
126 * @param name The name of the dialog box.
127 * @return node pointer if the dialog was found, zero otherwise.
129 virtual SGPropertyNode_ptr getDialogProperties (const std::string &name);
132 * Return a pointer to the current menubar.
134 virtual FGMenuBar * getMenuBar ();
137 * Ignore this method.
139 * This method is for internal use only, but it has to be public
140 * so that a non-class callback can see it.
142 virtual void setActiveDialog (FGDialog * dialog);
145 * Get the dialog currently active, if any.
147 * @return The active dialog, or 0 if none is active.
149 virtual FGDialog * getActiveDialog ();
153 * Get the named dialog if active.
155 * @return The named dialog, or 0 if it isn't active.
157 virtual FGDialog * getDialog (const std::string &name);
160 virtual FGColor *getColor (const char * name) const {
161 _citt_t it = _colors.find(name);
162 return (it != _colors.end()) ? it->second : NULL;
164 virtual FGColor *getColor (const std::string &name) const {
165 _citt_t it = _colors.find(name.c_str());
166 return (it != _colors.end()) ? it->second : NULL;
169 virtual puFont *getDefaultFont() { return _font; }
175 * Test if the menubar is visible.
177 * This method exists only for binding.
179 virtual bool getMenuBarVisible () const;
182 * Show or hide the menubar.
184 * This method exists only for binding.
186 virtual void setMenuBarVisible (bool visible);
188 virtual void setStyle ();
189 virtual void setupFont (SGPropertyNode *);
192 * Used by reinit() and redraw() to close all dialogs and to apply
193 * current GUI colors. If "reload" is false, reopens all dialogs.
194 * Otherwise reloads all XML dialog files from disk and reopens all
195 * but Nasal * generated dialogs, omitting dynamic widgets. (This
196 * is only useful for GUI development.)
198 virtual void reset (bool reload);
203 bool operator()(const char* s1, const char* s2) const {
204 return strcmp(s1, s2) < 0;
209 typedef std::map<const char*,FGColor*, ltstr> ColourDict;
211 typedef ColourDict::iterator _itt_t;
212 typedef ColourDict::const_iterator _citt_t;
216 // Read all the configuration files in a directory.
217 void readDir (const SGPath& path);
219 std::auto_ptr<FGMenuBar> _menubar;
220 FGDialog * _active_dialog;
221 std::map<std::string,FGDialog *> _active_dialogs;
223 typedef std::map<std::string, SGPath> NamePathDict;
224 // mapping from dialog names to the corresponding XML property list
225 // which defines them
226 NamePathDict _dialog_names;
228 // cache of loaded dialog proeprties
229 typedef std::map<std::string,SGPropertyNode_ptr> NameDialogDict;
230 NameDialogDict _dialog_props;
235 #endif // __NEW_GUI_HXX