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