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

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 #ifndef   __screen_hh
   3 #define   __screen_hh
   4
   5 /*! @file screen.hh
   6   @brief Screen manages a single screen
   7 */
   8
   9 extern "C" {
  10 #include <X11/Xlib.h>
  11 }
  12
  13 #include "otk/strut.hh"
  14 #include "otk/rect.hh"
  15 #include "otk/screeninfo.hh"
  16 #include "otk/eventhandler.hh"
  17 #include "otk/property.hh"
  18 #include "otk/ustring.hh"
  19
  20 #include <string>
  21 #include <list>
  22
  23 namespace ob {
  24
  25 class Client;
  26
  27 //! Manages a single screen
  28 /*!
  29 */
  30 class Screen : public otk::EventHandler {
  31 public:
  32   //! Holds a list of otk::Strut objects
  33   typedef std::vector<otk::Strut> StrutList;
  34   //! Holds a list of otk::Rect objects
  35   typedef std::vector<otk::Rect> RectList;
  36
  37   static const unsigned long event_mask = ColormapChangeMask |
  38                                           EnterWindowMask |
  39                                           LeaveWindowMask |
  40                                           PropertyChangeMask |
  41                                           SubstructureNotifyMask |
  42                                           SubstructureRedirectMask |
  43                                           ButtonPressMask |
  44                                           ButtonReleaseMask;
  45
  46   //! Holds a list of Clients
  47   typedef std::list<Client*> ClientList;
  48   //! All managed clients on the screen (in order of being mapped)
  49   ClientList clients;
  50
  51 private:
  52   //! Was %Openbox able to manage the screen?
  53   bool _managed;
  54
  55   //! The number of the screen on the X server
  56   int _number;
  57
  58   //! Information about this screen
  59   const otk::ScreenInfo *_info;
  60
  61   //! Is the root colormap currently installed?
  62   bool _root_cmap_installed;
  63
  64   //! Area usable for placement etc (total - struts), one per desktop,
  65   //! plus one extra for windows on all desktops
  66   RectList _area;
  67
  68   //! Combined strut from all of the clients' struts, one per desktop,
  69   //! plus one extra for windows on all desktops
  70   StrutList _struts;
  71
  72   //!  An offscreen window which gets focus when nothing else has it
  73   Window _focuswindow;
  74
  75   //! An offscreen window which shows that a NETWM compliant window manager is
  76   //! running
  77   Window _supportwindow;
  78
  79   //! A list of all managed clients on the screen, in their stacking order
  80   ClientList _stacking;
  81
  82   //! The desktop currently being displayed
  83   long _desktop;
  84
  85   //! The number of desktops
  86   long _num_desktops;
  87
  88   //! The names of all desktops
  89   otk::Property::StringVect _desktop_names;
  90
  91   //! Calculate the Screen::_area member
  92   void calcArea();
  93   //! Set the list of supported NETWM atoms on the root window
  94   void changeSupportedAtoms();
  95   //! Set the client list on the root window
  96   /*!
  97     Sets the _NET_CLIENT_LIST root window property.<br>
  98     Also calls Screen::updateStackingList.
  99   */
 100   void changeClientList();
 101   //! Set the client stacking list on the root window
 102   /*!
 103     Set the _NET_CLIENT_LIST_STACKING root window property.
 104   */
 105   void changeStackingList();
 106   //! Set the work area hint on the root window
 107   /*!
 108     Set the _NET_WORKAREA root window property.
 109   */
 110   void changeWorkArea();
 111
 112   //! Get desktop names from the root window property
 113   void updateDesktopNames();
 114
 115   //! Changes to the specified desktop, displaying windows on it and hiding
 116   //! windows on the others.
 117   /*!
 118     @param desktop The number of the desktop to switch to (starts from 0).
 119     If the desktop is out of valid range, it is ignored.
 120   */
 121   void changeDesktop(long desktop);
 122
 123   //! Changes the number of desktops.
 124   /*!
 125     @param num The number of desktops that should exist. This value must be
 126                greater than 0 or it will be ignored.
 127   */
 128   void changeNumDesktops(long num);
 129
 130 public:
 131 #ifndef SWIG
 132   //! Constructs a new Screen object
 133   Screen(int screen);
 134   //! Destroys the Screen object
 135   virtual ~Screen();
 136 #endif
 137
 138   inline int number() const { return _number; }
 139
 140   //! Returns if the screen was successfully managed
 141   /*!
 142     If this is false, then the screen should be deleted and should NOT be
 143     used.
 144   */
 145   inline bool managed() const { return _managed; }
 146   //!  An offscreen window which gets focus when nothing else has it
 147   inline Window focuswindow() const { return _focuswindow; }
 148   //! Returns the desktop being displayed
 149   inline long desktop() const { return _desktop; }
 150   //! Returns the number of desktops
 151   inline long numDesktops() const { return _num_desktops; }
 152
 153   //! Returns the area of the screen not reserved by applications' Struts
 154   /*!
 155     @param desktop The desktop number of the area to retrieve for. A value of
 156                    0xffffffff will return an area that combines all struts
 157                    on all desktops.
 158   */
 159   const otk::Rect& area(long desktop) const;
 160
 161   //! Update's the screen's combined strut of all the clients.
 162   /*!
 163     Clients should call this whenever they change their strut.
 164   */
 165   void updateStruts();
 166
 167   //! Manage any pre-existing windows on the screen
 168   void manageExisting();
 169   //! Manage a client window
 170   /*!
 171     This gives the window a frame, reparents it, selects events on it, etc.
 172   */
 173   void manageWindow(Window window);
 174   //! Unmanage a client
 175   /*!
 176     This removes the window's frame, reparents it to root, unselects events on
 177     it, etc.
 178     @param client The client to unmanage
 179   */
 180   void unmanageWindow(Client *client);
 181
 182   //! Raises a client window above all others in its stacking layer
 183   /*!
 184     raiseWindow has a couple of constraints that lowerWindow does not.<br>
 185     1) raiseWindow can be called after changing a Client's stack layer, and
 186        the list will be reorganized properly.<br>
 187     2) raiseWindow guarantees that XRestackWindows() will <i>always</i> be
 188        called for the specified client.
 189   */
 190   void raiseWindow(Client *client);
 191
 192   //! Lowers a client window below all others in its stacking layer
 193   void lowerWindow(Client *client);
 194
 195   //! Sets the name of a desktop by changing the root window property
 196   /*!
 197     @param i The index of the desktop to set the name for (starts at 0)
 198     @param name The name to set for the desktop
 199     If the index is too large, it is simply ignored.
 200   */
 201   void setDesktopName(long i, const otk::ustring &name);
 202
 203   void installColormap(bool install) const;
 204
 205   virtual void propertyHandler(const XPropertyEvent &e);
 206   virtual void clientMessageHandler(const XClientMessageEvent &e);
 207   virtual void mapRequestHandler(const XMapRequestEvent &e);
 208 };
 209
 210 }
 211
 212 #endif// __screen_hh