otk/display.hh (raw)
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// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*- #ifndef __display_hh #define __display_hh extern "C" { #include <X11/Xlib.h> } namespace otk { class ScreenInfo; class RenderControl; class Display; //! The display instance for the library extern Display *display; //! Manages a single X11 display. class Display { private: //! The X display ::Display *_display; //! Does the display have the XKB extension? bool _xkb; //! Base for events for the XKB extension int _xkb_event_basep; //! Does the display have the Shape extension? bool _shape; //! Base for events for the Shape extension int _shape_event_basep; //! Does the display have the Xinerama extension? bool _xinerama; //! Base for events for the Xinerama extension int _xinerama_event_basep; //! A list of all possible combinations of keyboard lock masks unsigned int _mask_list[8]; //! The value of the mask for the NumLock modifier unsigned int _num_lock_mask; //! The value of the mask for the ScrollLock modifier unsigned int _scroll_lock_mask; //! The key codes for the modifier keys XModifierKeymap *_modmap; //! The number of requested grabs on the display int _grab_count; //! When true, X errors will be ignored. Use with care. bool _ignore_errors; //! A list of information for all screens on the display ScreenInfo** _screeninfo_list; //! A list of RenderControl objects, which are used for all graphics on a //! screen RenderControl** _rendercontrol_list; public: //! Initializes the class, opens the X display /*! The DISPLAY environment variable is used to choose the display. @see Display::display */ Display(); //! Destroys the class, closes the X display ~Display(); //! Gets information on a specific screen /*! Returns a ScreenInfo class, which contains information for a screen on the display. @param snum The screen number of the screen to retrieve info on @return Info on the requested screen, in a ScreenInfo class */ const ScreenInfo* screenInfo(int snum) const; //! Find a ScreenInfo based on a root window const ScreenInfo* findScreen(Window root) const; //! Gets the RenderControl for a screen const RenderControl *renderControl(int snum) const; //! Returns if the display has the xkb extension available inline bool xkb() const { return _xkb; } //! Returns the xkb extension's event base inline int xkbEventBase() const { return _xkb_event_basep; } //! Returns if the display has the shape extension available inline bool shape() const { return _shape; } //! Returns the shape extension's event base inline int shapeEventBase() const { return _shape_event_basep; } //! Returns if the display has the xinerama extension available inline bool xinerama() const { return _xinerama; } inline unsigned int numLockMask() const { return _num_lock_mask; } inline unsigned int scrollLockMask() const { return _scroll_lock_mask; } const XModifierKeymap *modifierMap() const { return _modmap; } inline ::Display* operator*() const { return _display; } //! When true, X errors will be ignored. inline bool ignoreErrors() const { return _ignore_errors; } //! Set whether X errors should be ignored. Use with care. void setIgnoreErrors(bool t); //! Grabs the display void grab(); //! Ungrabs the display void ungrab(); /* TEMPORARY */ void grabButton(unsigned int button, unsigned int modifiers, Window grab_window, bool owner_events, unsigned int event_mask, int pointer_mode, int keyboard_mode, Window confine_to, Cursor cursor, bool allow_scroll_lock) const; void ungrabButton(unsigned int button, unsigned int modifiers, Window grab_window) const; void grabKey(unsigned int keycode, unsigned int modifiers, Window grab_window, bool owner_events, int pointer_mode, int keyboard_mode, bool allow_scroll_lock) const; void ungrabKey(unsigned int keycode, unsigned int modifiers, Window grab_window) const; }; } #endif // __display_hh |