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+// BaseDisplay.h for Openbox
+// Copyright (c) 2001 Sean 'Shaleh' Perry <shaleh@debian.org>
+// Copyright (c) 1997 - 2000 Brad Hughes (bhughes@tcac.net)
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+#ifndef   __BaseDisplay_hh
+#define   __BaseDisplay_hh
+
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+
+// forward declaration
+class BaseDisplay;
+class ScreenInfo;
+
+#include "LinkedList.h"
+#include "Timer.h"
+
+#define AttribShaded      (1l << 0)
+#define AttribMaxHoriz    (1l << 1)
+#define AttribMaxVert     (1l << 2)
+#define AttribOmnipresent (1l << 3)
+#define AttribWorkspace   (1l << 4)
+#define AttribStack       (1l << 5)
+#define AttribDecoration  (1l << 6)
+
+#define StackTop          (0)
+#define StackNormal       (1)
+#define StackBottom       (2)
+
+#define DecorNone         (0)
+#define DecorNormal       (1)
+#define DecorTiny         (2)
+#define DecorTool         (3)
+
+typedef struct _openbox_hints {
+  unsigned long flags, attrib, workspace, stack, decoration;
+} OpenboxHints;
+
+typedef struct _openbox_attributes {
+  unsigned long flags, attrib, workspace, stack, decoration;
+  int premax_x, premax_y;
+  unsigned int premax_w, premax_h;
+} OpenboxAttributes;
+
+#define PropOpenboxHintsElements      (5)
+#define PropOpenboxAttributesElements (9)
+
+#ifndef    __EMX__
+void bexec(const char *, char *);
+#endif // !__EMX__
+
+char *bstrdup(const char *);
+
+class BaseDisplay {
+private:
+  struct cursor {
+    Cursor session, move, ll_angle, lr_angle, ul_angle, ur_angle;
+  } cursor;
+
+  struct shape {
+    Bool extensions;
+    int event_basep, error_basep;
+  } shape;
+
+#ifndef   NOCLOBBER
+  unsigned int MaskList[8];
+  size_t MaskListLength;
+#endif // NOCLOBBER
+  
+  Atom xa_wm_colormap_windows, xa_wm_protocols, xa_wm_state,
+    xa_wm_delete_window, xa_wm_take_focus, xa_wm_change_state,
+    motif_wm_hints;
+
+  // NETAttributes
+  Atom openbox_attributes, openbox_change_attributes, openbox_hints;
+
+  // NETStructureMessages
+  Atom openbox_structure_messages, openbox_notify_startup,
+    openbox_notify_window_add, openbox_notify_window_del,
+    openbox_notify_window_focus, openbox_notify_current_workspace,
+    openbox_notify_workspace_count, openbox_notify_window_raise,
+    openbox_notify_window_lower;
+
+  // message_types for client -> wm messages
+  Atom openbox_change_workspace, openbox_change_window_focus,
+    openbox_cycle_window_focus;
+
+#ifdef    NEWWMSPEC
+
+  // root window properties
+  Atom net_supported, net_client_list, net_client_list_stacking,
+    net_number_of_desktops, net_desktop_geometry, net_desktop_viewport,
+    net_current_desktop, net_desktop_names, net_active_window, net_workarea,
+    net_supporting_wm_check, net_virtual_roots;
+
+  // root window messages
+  Atom net_close_window, net_wm_moveresize;
+
+  // application window properties
+  Atom net_properties, net_wm_name, net_wm_desktop, net_wm_window_type,
+    net_wm_state, net_wm_strut, net_wm_icon_geometry, net_wm_icon, net_wm_pid,
+    net_wm_handled_icons;
+
+  // application protocols
+  Atom net_wm_ping;
+
+#endif // NEWWMSPEC
+
+  Bool _startup, _shutdown;
+  Display *display;
+  LinkedList<ScreenInfo> *screenInfoList;
+  LinkedList<BTimer> *timerList;
+
+  char *display_name, *application_name;
+  int number_of_screens, server_grabs, colors_per_channel;
+
+
+protected:
+  // pure virtual function... you must override this
+  virtual void process_event(XEvent *) = 0;
+
+  // the masks of the modifiers which are ignored in button events.
+  int NumLockMask, ScrollLockMask;
+
+
+public:
+  BaseDisplay(char *, char * = 0);
+  virtual ~BaseDisplay(void);
+
+  inline const Atom &getWMChangeStateAtom(void) const
+    { return xa_wm_change_state; }
+  inline const Atom &getWMStateAtom(void) const
+    { return xa_wm_state; }
+  inline const Atom &getWMDeleteAtom(void) const
+    { return xa_wm_delete_window; }
+  inline const Atom &getWMProtocolsAtom(void) const
+    { return xa_wm_protocols; }
+  inline const Atom &getWMTakeFocusAtom(void) const
+    { return xa_wm_take_focus; }
+  inline const Atom &getWMColormapAtom(void) const
+    { return xa_wm_colormap_windows; }
+  inline const Atom &getMotifWMHintsAtom(void) const
+    { return motif_wm_hints; }
+
+  // this atom is for normal app->WM hints about decorations, stacking,
+  // starting workspace etc...
+  inline const Atom &getOpenboxHintsAtom(void) const
+    { return openbox_hints;}
+
+  // these atoms are for normal app->WM interaction beyond the scope of the
+  // ICCCM...
+  inline const Atom &getOpenboxAttributesAtom(void) const
+    { return openbox_attributes; }
+  inline const Atom &getOpenboxChangeAttributesAtom(void) const
+    { return openbox_change_attributes; }
+
+  // these atoms are for window->WM interaction, with more control and
+  // information on window "structure"... common examples are
+  // notifying apps when windows are raised/lowered... when the user changes
+  // workspaces... i.e. "pager talk"
+  inline const Atom &getOpenboxStructureMessagesAtom(void) const
+    { return openbox_structure_messages; }
+
+  // *Notify* portions of the NETStructureMessages protocol
+  inline const Atom &getOpenboxNotifyStartupAtom(void) const
+    { return openbox_notify_startup; }
+  inline const Atom &getOpenboxNotifyWindowAddAtom(void) const
+    { return openbox_notify_window_add; }
+  inline const Atom &getOpenboxNotifyWindowDelAtom(void) const
+    { return openbox_notify_window_del; }
+  inline const Atom &getOpenboxNotifyWindowFocusAtom(void) const
+    { return openbox_notify_window_focus; }
+  inline const Atom &getOpenboxNotifyCurrentWorkspaceAtom(void) const
+    { return openbox_notify_current_workspace; }
+  inline const Atom &getOpenboxNotifyWorkspaceCountAtom(void) const
+    { return openbox_notify_workspace_count; }
+  inline const Atom &getOpenboxNotifyWindowRaiseAtom(void) const
+    { return openbox_notify_window_raise; }
+  inline const Atom &getOpenboxNotifyWindowLowerAtom(void) const
+    { return openbox_notify_window_lower; }
+
+  // atoms to change that request changes to the desktop environment during
+  // runtime... these messages can be sent by any client... as the sending
+  // client window id is not included in the ClientMessage event...
+  inline const Atom &getOpenboxChangeWorkspaceAtom(void) const
+    { return openbox_change_workspace; }
+  inline const Atom &getOpenboxChangeWindowFocusAtom(void) const
+    { return openbox_change_window_focus; }
+  inline const Atom &getOpenboxCycleWindowFocusAtom(void) const
+    { return openbox_cycle_window_focus; }
+
+#ifdef    NEWWMSPEC
+
+  // root window properties
+  inline const Atom &getNETSupportedAtom(void) const
+    { return net_supported; }
+  inline const Atom &getNETClientListAtom(void) const
+    { return net_client_list; }
+  inline const Atom &getNETClientListStackingAtom(void) const
+    { return net_client_list_stacking; }
+  inline const Atom &getNETNumberOfDesktopsAtom(void) const
+    { return net_number_of_desktops; }
+  inline const Atom &getNETDesktopGeometryAtom(void) const
+    { return net_desktop_geometry; }
+  inline const Atom &getNETDesktopViewportAtom(void) const
+    { return net_desktop_viewport; }
+  inline const Atom &getNETCurrentDesktopAtom(void) const
+    { return net_current_desktop; }
+  inline const Atom &getNETDesktopNamesAtom(void) const
+    { return net_desktop_names; }
+  inline const Atom &getNETActiveWindowAtom(void) const
+    { return net_active_window; }
+  inline const Atom &getNETWorkareaAtom(void) const
+    { return net_workarea; }
+  inline const Atom &getNETSupportingWMCheckAtom(void) const
+    { return net_supporting_wm_check; }
+  inline const Atom &getNETVirtualRootsAtom(void) const
+    { return net_virtual_roots; }
+
+  // root window messages
+  inline const Atom &getNETCloseWindowAtom(void) const
+    { return net_close_window; }
+  inline const Atom &getNETWMMoveResizeAtom(void) const
+    { return net_wm_moveresize; }
+
+  // application window properties
+  inline const Atom &getNETPropertiesAtom(void) const
+    { return net_properties; }
+  inline const Atom &getNETWMNameAtom(void) const
+    { return net_wm_name; }
+  inline const Atom &getNETWMDesktopAtom(void) const
+    { return net_wm_desktop; }
+  inline const Atom &getNETWMWindowTypeAtom(void) const
+    { return net_wm_window_type; }
+  inline const Atom &getNETWMStateAtom(void) const
+    { return net_wm_state; }
+  inline const Atom &getNETWMStrutAtom(void) const
+    { return net_wm_strut; }
+  inline const Atom &getNETWMIconGeometryAtom(void) const
+    { return net_wm_icon_geometry; }
+  inline const Atom &getNETWMIconAtom(void) const
+    { return net_wm_icon; }
+  inline const Atom &getNETWMPidAtom(void) const
+    { return net_wm_pid; }
+  inline const Atom &getNETWMHandledIconsAtom(void) const
+    { return net_wm_handled_icons; }
+
+  // application protocols
+  inline const Atom &getNETWMPingAtom(void) const
+    { return net_wm_ping; }
+
+#endif // NEWWMSPEC
+
+  inline ScreenInfo *getScreenInfo(int s)
+    { return (ScreenInfo *) screenInfoList->find(s); }
+
+  inline const Bool &hasShapeExtensions(void) const
+    { return shape.extensions; }
+  inline const Bool &doShutdown(void) const
+    { return _shutdown; }
+  inline const Bool &isStartup(void) const
+    { return _startup; }
+
+  inline const Cursor &getSessionCursor(void) const
+    { return cursor.session; }
+  inline const Cursor &getMoveCursor(void) const
+    { return cursor.move; }
+  inline const Cursor &getLowerLeftAngleCursor(void) const
+    { return cursor.ll_angle; }
+  inline const Cursor &getLowerRightAngleCursor(void) const
+    { return cursor.lr_angle; }
+  inline const Cursor &getUpperLeftAngleCursor(void) const
+    { return cursor.ul_angle; }
+  inline const Cursor &getUpperRightAngleCursor(void) const
+    { return cursor.ur_angle; }
+
+  inline Display *getXDisplay(void) { return display; }
+
+  inline const char *getXDisplayName(void) const
+    { return (const char *) display_name; }
+  inline const char *getApplicationName(void) const
+    { return (const char *) application_name; }
+
+  inline const int &getNumberOfScreens(void) const
+    { return number_of_screens; }
+  inline const int &getShapeEventBase(void) const
+    { return shape.event_basep; }
+
+  inline void shutdown(void) { _shutdown = True; }
+  inline void run(void) { _startup = _shutdown = False; }
+
+  const Bool validateWindow(Window);
+
+  void grabButton(unsigned int, unsigned int, Window, Bool, unsigned int, int,
+      int, Window, Cursor) const;
+  void ungrabButton(unsigned int button, unsigned int modifiers,
+      Window grab_window) const;
+  
+  void grab(void);
+  void ungrab(void);
+  void eventLoop(void);
+  void addTimer(BTimer *);
+  void removeTimer(BTimer *);
+
+  // another pure virtual... this is used to handle signals that BaseDisplay
+  // doesn't understand itself
+  virtual Bool handleSignal(int) = 0;
+};
+
+
+class ScreenInfo {
+private:
+  BaseDisplay *basedisplay;
+  Visual *visual;
+  Window root_window;
+  Colormap colormap;
+
+  int depth, screen_number;
+  unsigned int width, height;
+
+
+public:
+  ScreenInfo(BaseDisplay *, int);
+
+  inline BaseDisplay *getBaseDisplay(void) { return basedisplay; }
+
+  inline Visual *getVisual(void) { return visual; }
+  inline const Window &getRootWindow(void) const { return root_window; }
+  inline const Colormap &getColormap(void) const { return colormap; }
+
+  inline const int &getDepth(void) const { return depth; }
+  inline const int &getScreenNumber(void) const { return screen_number; }
+
+  inline const unsigned int &getWidth(void) const { return width; }
+  inline const unsigned int &getHeight(void) const { return height; }
+};
+
+
+#endif // __BaseDisplay_hh