Dogcows Code - chaz/openbox/blob - src/openbox.hh

   1 // -*- mode: C++; indent-tabs-mode: nil; -*-
   2 #ifndef   __openbox_hh
   3 #define   __openbox_hh
   4
   5 /*! @file openbox.hh
   6   @brief The main class for the Openbox window manager
   7 */
   8
   9 extern "C" {
  10 #include <X11/Xlib.h>
  11 }
  12
  13 #include <string>
  14 #include <vector>
  15 #include <map>
  16
  17 #include "otk/screeninfo.hh"
  18 #include "otk/timerqueuemanager.hh"
  19 #include "otk/property.hh"
  20 #include "otk/configuration.hh"
  21 #include "xeventhandler.hh"
  22 #include "client.hh"
  23
  24 namespace ob {
  25
  26 class OBScreen;
  27
  28 //! The main class for the Openbox window manager.
  29 /*!
  30   Only a single instance of the Openbox class may be used in the application. A
  31   pointer to this instance is held in the Openbox::instance static member
  32   variable.
  33   Instantiation of this class begins the window manager. After instantiation,
  34   the Openbox::eventLoop function should be called. The eventLoop method does
  35   not exit until the window manager is ready to be destroyed. Destruction of
  36   the Openbox class instance will shutdown the window manager.
  37 */
  38 class Openbox
  39 {
  40 public:
  41   //! The single instance of the Openbox class for the application.
  42   /*!
  43     Since this variable is globally available in the application, the Openbox
  44     class does not need to be passed around to any of the other classes.
  45   */
  46   static Openbox *instance;
  47
  48   //! The posible running states of the window manager
  49   enum RunState {
  50     State_Starting, //!< The window manager is starting up (being created)
  51     State_Normal,   //!< The window manager is running in its normal state
  52     State_Exiting   //!< The window manager is exiting (being destroyed)
  53   };
  54
  55   //! Mouse cursors used throughout Openbox
  56   struct Cursors {
  57     Cursor session;  //!< The default mouse cursor
  58     Cursor move;     //!< For moving a window
  59     Cursor ll_angle; //!< For resizing the bottom left corner of a window
  60     Cursor lr_angle; //!< For resizing the bottom right corner of a window
  61     Cursor ul_angle; //!< For resizing the top left corner of a window
  62     Cursor ur_angle; //!< For resizing the right corner of a window
  63   };
  64
  65   //! A map for looking up a specific client class from the window id
  66   typedef std::map<Window, OBClient *> ClientMap;
  67
  68   //! A list of OBScreen classes
  69   typedef std::vector<OBScreen *> ScreenList;
  70
  71 private:
  72   // stuff that can be passed on the command line
  73   //! Path to the config file to use/in use
  74   /*!
  75     Defaults to $(HOME)/.openbox/rc3
  76   */
  77   std::string _rcfilepath;
  78   //! Path to the menu file to use/in use
  79   /*!
  80     Defaults to $(HOME)/.openbox/menu3
  81   */
  82   std::string _menufilepath;
  83   //! The display requested by the user, or null to use the DISPLAY env var
  84   char *_displayreq;
  85   //! The value of argv[0], i.e. how this application was executed
  86   char *_argv0;
  87
  88   //! A list of all managed clients
  89   ClientMap _clients;
  90
  91   //! A list of all the managed screens
  92   ScreenList _screens;
  93
  94   //! Manages all timers for the application
  95   /*!
  96     Use of the otk::OBTimerQueueManager::fire funtion in this object ensures
  97     that all timers fire when their times elapse.
  98   */
  99   otk::OBTimerQueueManager _timermanager;
 100
 101   //! The class which will handle raw XEvents
 102   OBXEventHandler _xeventhandler;
 103
 104   //! Cached atoms on the display
 105   /*!
 106     This is a pointer because the OBProperty class uses otk::OBDisplay::display
 107     in its constructor, so, it needs to be initialized <b>after</b> the display
 108     is initialized in this class' constructor.
 109   */
 110   otk::OBProperty *_property;
 111
 112   //! The running state of the window manager
 113   RunState _state;
 114
 115   //! Mouse cursors used throughout Openbox
 116   Cursors _cursors;
 117
 118   //! When set to true, the Openbox::eventLoop function will stop and return
 119   bool _doshutdown;
 120
 121   //! The configuration of the application. TEMPORARY
 122   otk::Configuration _config;
 123
 124   //! Parses the command line used when executing this application
 125   void parseCommandLine(int argv, char **argv);
 126   //! Displays the version string to stdout
 127   void showVersion();
 128   //! Displays usage information and help to stdout
 129   void showHelp();
 130
 131   //! Handles signal events for the application
 132   static void signalHandler(int signal);
 133
 134 public:
 135   //! Openbox constructor.
 136   /*!
 137     \param argc Number of command line arguments, as received in main()
 138     \param argv The command line arguments, as received in main()
 139   */
 140   Openbox(int argc, char **argv);
 141   //! Openbox destructor.
 142   virtual ~Openbox();
 143
 144   //! Returns the state of the window manager (starting, exiting, etc)
 145   inline RunState state() const { return _state; }
 146
 147   //! Returns the otk::OBTimerQueueManager for the application
 148   /*!
 149     All otk::OBTimer objects used in the application should be made to use this
 150     otk::OBTimerQueueManager.
 151   */
 152   inline otk::OBTimerQueueManager *timerManager() { return &_timermanager; }
 153
 154   //! Returns the otk::OBProperty instance for the window manager
 155   inline const otk::OBProperty *property() const { return _property; }
 156
 157   //! Returns a managed screen
 158   inline OBScreen *screen(int num) {
 159     assert(num >= 0); assert(num < (signed)_screens.size());
 160     return _screens[num];
 161   }
 162
 163   //! Returns the mouse cursors used throughout Openbox
 164   inline const Cursors &cursors() const { return _cursors; }
 165
 166   //! The main function of the Openbox class
 167   /*!
 168     This function should be called after instantiating the Openbox class.
 169     It loops indefinately while handling all events for the application.
 170     The Openbox::shutdown method will cause this function to exit.
 171   */
 172   void eventLoop();
 173
 174   //! Adds an OBClient to the client list for lookups
 175   void addClient(Window window, OBClient *client);
 176
 177   //! Removes an OBClient from the client list for lookups
 178   void removeClient(Window window);
 179
 180   //! Finds an OBClient based on its window id
 181   OBClient *findClient(Window window);
 182
 183   //! Requests that the window manager exit
 184   /*!
 185     Causes the Openbox::eventLoop function to stop looping, so that the window
 186     manager can be destroyed.
 187   */
 188   inline void shutdown() { _doshutdown = true; }
 189 };
 190
 191 }
 192
 193 #endif // __openbox_hh