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