Dogcows Code - chaz/openbox/blob - otk/display.hh

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 #ifndef   __display_hh
   3 #define   __display_hh
   4
   5 extern "C" {
   6 #include <X11/Xlib.h>
   7 }
   8
   9 namespace otk {
  10
  11 class RenderControl;
  12
  13 class Display;
  14
  15 //! The display instance for the library
  16 extern Display *display;
  17
  18 //! Manages a single X11 display.
  19 class Display
  20 {
  21 private:
  22   //! The X display
  23   ::Display *_display;
  24
  25   //! Does the display have the XKB extension?
  26   bool _xkb;
  27   //! Base for events for the XKB extension
  28   int  _xkb_event_basep;
  29
  30   //! Does the display have the Shape extension?
  31   bool _shape;
  32   //! Base for events for the Shape extension
  33   int  _shape_event_basep;
  34
  35   //! Does the display have the Xinerama extension?
  36   bool _xinerama;
  37   //! Base for events for the Xinerama extension
  38   int  _xinerama_event_basep;
  39
  40   //! A list of all possible combinations of keyboard lock masks
  41   unsigned int _mask_list[8];
  42
  43   //! The value of the mask for the NumLock modifier
  44   unsigned int _num_lock_mask;
  45
  46   //! The value of the mask for the ScrollLock modifier
  47   unsigned int _scroll_lock_mask;
  48
  49   //! The key codes for the modifier keys
  50   XModifierKeymap *_modmap;
  51
  52   //! The number of requested grabs on the display
  53   int _grab_count;
  54
  55   //! When true, X errors will be ignored. Use with care.
  56   bool _ignore_errors;
  57
  58   //! The optimal visual for the display
  59   Visual *_visual;
  60
  61   //! Our colormap built for the optimal visual
  62   Colormap _colormap;
  63
  64   //! The depth of our optimal visual
  65   int _depth;
  66
  67 public:
  68   //! Wraps an open Display connection
  69   /*!
  70     @param d An open Display connection.
  71   */
  72   Display(::Display *d);
  73   //! Destroys the class, closes the X display
  74   ~Display();
  75
  76   //! Returns if the display has the xkb extension available
  77   inline bool xkb() const { return _xkb; }
  78   //! Returns the xkb extension's event base
  79   inline int xkbEventBase() const { return _xkb_event_basep; }
  80
  81   //! Returns if the display has the shape extension available
  82   inline bool shape() const { return _shape; }
  83   //! Returns the shape extension's event base
  84   inline int shapeEventBase() const { return _shape_event_basep; }
  85   //! Returns if the display has the xinerama extension available
  86   inline bool xinerama() const { return _xinerama; }
  87
  88   inline unsigned int numLockMask() const { return _num_lock_mask; }
  89   inline unsigned int scrollLockMask() const { return _scroll_lock_mask; }
  90   const XModifierKeymap *modifierMap() const { return _modmap; }
  91
  92   inline ::Display* operator*() const { return _display; }
  93
  94   //! When true, X errors will be ignored.
  95   inline bool ignoreErrors() const { return _ignore_errors; }
  96   //! Set whether X errors should be ignored. Use with care.
  97   void setIgnoreErrors(bool t);
  98
  99   //! Grabs the display
 100   void grab();
 101
 102   //! Ungrabs the display
 103   void ungrab();
 104
 105
 106
 107   /* TEMPORARY */
 108   void grabButton(unsigned int button, unsigned int modifiers,
 109                   Window grab_window, bool owner_events,
 110                   unsigned int event_mask, int pointer_mode,
 111                   int keyboard_mode, Window confine_to, Cursor cursor,
 112                   bool allow_scroll_lock) const;
 113   void ungrabButton(unsigned int button, unsigned int modifiers,
 114                     Window grab_window) const;
 115   void grabKey(unsigned int keycode, unsigned int modifiers,
 116                Window grab_window, bool owner_events,
 117                int pointer_mode, int keyboard_mode,
 118                bool allow_scroll_lock) const;
 119   void ungrabKey(unsigned int keycode, unsigned int modifiers,
 120                  Window grab_window) const;
 121   void ungrabAllKeys(Window grab_window) const;
 122 };
 123
 124 }
 125
 126 #endif // __display_hh