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

   1 // -*- mode: C++; indent-tabs-mode: nil; -*-
   2 #ifndef   __BaseDisplay_hh
   3 #define   __BaseDisplay_hh
   4
   5 #include "screeninfo.hh"
   6 #include "timer.hh"
   7
   8 extern "C" {
   9 #include <X11/Xlib.h>
  10 #include <X11/Xatom.h>
  11 }
  12
  13 #include <vector>
  14
  15 // forward declaration
  16 class BaseDisplay;
  17 class BGCCache;
  18
  19 class BaseDisplay: public TimerQueueManager {
  20 private:
  21   struct BShape {
  22     bool extensions;
  23     int event_basep, error_basep;
  24   };
  25   BShape shape;
  26
  27 #ifdef    XINERAMA
  28   struct BXinerama {
  29     bool extensions;
  30     int event_basep, error_basep;
  31     int major, minor; // version
  32   };
  33   BXinerama xinerama;
  34 #endif // XINERAMA
  35
  36   unsigned int MaskList[8];
  37   size_t MaskListLength;
  38
  39   enum RunState { STARTUP, RUNNING, SHUTDOWN };
  40   RunState run_state;
  41
  42   Display *display;
  43   mutable BGCCache *gccache;
  44
  45   typedef std::vector<ScreenInfo> ScreenInfoList;
  46   ScreenInfoList screenInfoList;
  47   TimerQueue timerList;
  48
  49   const char *display_name, *application_name;
  50
  51   // no copying!
  52   BaseDisplay(const BaseDisplay &);
  53   BaseDisplay& operator=(const BaseDisplay&);
  54
  55 protected:
  56   // pure virtual function... you must override this
  57   virtual void process_event(XEvent *e) = 0;
  58
  59   // the masks of the modifiers which are ignored in button events.
  60   int NumLockMask, ScrollLockMask;
  61
  62
  63 public:
  64   BaseDisplay(const char *app_name, const char *dpy_name = 0);
  65   virtual ~BaseDisplay(void);
  66
  67   const ScreenInfo* getScreenInfo(const unsigned int s) const;
  68
  69   BGCCache *gcCache(void) const;
  70
  71   inline bool hasShapeExtensions(void) const
  72     { return shape.extensions; }
  73 #ifdef    XINERAMA
  74   inline bool hasXineramaExtensions(void) const
  75     { return xinerama.extensions; }
  76 #endif // XINERAMA
  77   inline bool doShutdown(void) const
  78     { return run_state == SHUTDOWN; }
  79   inline bool isStartup(void) const
  80     { return run_state == STARTUP; }
  81
  82   inline Display *getXDisplay(void) const { return display; }
  83
  84   inline const char *getXDisplayName(void) const
  85     { return display_name; }
  86   inline const char *getApplicationName(void) const
  87     { return application_name; }
  88
  89   inline unsigned int getNumberOfScreens(void) const
  90     { return screenInfoList.size(); }
  91   inline int getShapeEventBase(void) const
  92     { return shape.event_basep; }
  93 #ifdef    XINERAMA
  94   inline int getXineramaMajorVersion(void) const
  95     { return xinerama.major; }
  96 #endif // XINERAMA
  97
  98   inline void shutdown(void) { run_state = SHUTDOWN; }
  99   inline void run(void) { run_state = RUNNING; }
 100
 101   void grabButton(unsigned int button, unsigned int modifiers,
 102                   Window grab_window, bool owner_events,
 103                   unsigned int event_mask, int pointer_mode,
 104                   int keyboard_mode, Window confine_to, Cursor cursor,
 105                   bool allow_scroll_lock) const;
 106   void ungrabButton(unsigned int button, unsigned int modifiers,
 107                     Window grab_window) const;
 108
 109   void eventLoop(void);
 110
 111   // from TimerQueueManager interface
 112   virtual void addTimer(BTimer *timer);
 113   virtual void removeTimer(BTimer *timer);
 114
 115   // another pure virtual... this is used to handle signals that BaseDisplay
 116   // doesn't understand itself
 117   virtual bool handleSignal(int sig) = 0;
 118 };
 119
 120
 121 #endif // __BaseDisplay_hh