1 // -*- mode: C++; indent-tabs-mode: nil; -*-
4 # include "../config.h"
8 #include "screeninfo.hh"
12 #include <X11/keysym.h>
16 #endif // HAVE_STDIO_H
20 #endif // HAVE_STDLIB_H
24 #endif // HAVE_SIGNAL_H
28 #endif // HAVE_FCNTL_H
31 # include <sys/types.h>
33 #endif // HAVE_UNISTD_H
36 #define _(str) gettext(str)
42 Display *display = (Display*) 0;
45 int OBDisplay::xerrorHandler(Display *d, XErrorEvent *e)
50 XGetErrorText(d, e->error_code, errtxt, 128);
51 printf("X Error: %s\n", errtxt);
61 void OBDisplay::initialize(char *name)
67 if (!(display = XOpenDisplay(name))) {
68 printf(_("Unable to open connection to the X server. Please set the \n\
69 DISPLAY environment variable approriately, or use the '-display' command \n\
70 line argument.\n\n"));
73 if (fcntl(ConnectionNumber(display), F_SETFD, 1) == -1) {
74 printf(_("Couldn't mark display connection as close-on-exec.\n\n"));
78 // set our error handler for X errors
79 XSetErrorHandler(xerrorHandler);
81 // set the DISPLAY environment variable for any lauched children, to the
82 // display we're using, so they open in the right place.
83 // XXX rm -> std::string dtmp = "DISPLAY=" + DisplayString(display);
84 if (putenv(const_cast<char*>((std::string("DISPLAY=") +
85 DisplayString(display)).c_str()))) {
86 printf(_("warning: couldn't set environment variable 'DISPLAY'\n"));
90 // find the availability of X extensions we like to use
92 _shape = XShapeQueryExtension(display, &_shape_event_basep, &junk);
98 _xinerama = XineramaQueryExtension(display, &_xinerama_event_basep, &junk);
103 // get lock masks that are defined by the display (not constant)
104 XModifierKeymap *modmap;
105 unsigned int NumLockMask = 0, ScrollLockMask = 0;
107 modmap = XGetModifierMapping(display);
108 if (modmap && modmap->max_keypermod > 0) {
109 const int mask_table[] = {
110 ShiftMask, LockMask, ControlMask, Mod1Mask,
111 Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask
113 const size_t size = (sizeof(mask_table) / sizeof(mask_table[0])) *
114 modmap->max_keypermod;
115 // get the values of the keyboard lock modifiers
116 // Note: Caps lock is not retrieved the same way as Scroll and Num lock
117 // since it doesn't need to be.
118 const KeyCode num_lock = XKeysymToKeycode(display, XK_Num_Lock);
119 const KeyCode scroll_lock = XKeysymToKeycode(display, XK_Scroll_Lock);
121 for (size_t cnt = 0; cnt < size; ++cnt) {
122 if (! modmap->modifiermap[cnt]) continue;
124 if (num_lock == modmap->modifiermap[cnt])
125 NumLockMask = mask_table[cnt / modmap->max_keypermod];
126 if (scroll_lock == modmap->modifiermap[cnt])
127 ScrollLockMask = mask_table[cnt / modmap->max_keypermod];
131 if (modmap) XFreeModifiermap(modmap);
134 _mask_list[1] = LockMask;
135 _mask_list[2] = NumLockMask;
136 _mask_list[3] = LockMask | NumLockMask;
137 _mask_list[4] = ScrollLockMask;
138 _mask_list[5] = ScrollLockMask | LockMask;
139 _mask_list[6] = ScrollLockMask | NumLockMask;
140 _mask_list[7] = ScrollLockMask | LockMask | NumLockMask;
142 // Get information on all the screens which are available.
143 _screenInfoList.reserve(ScreenCount(display));
144 for (int i = 0; i < ScreenCount(display); ++i)
145 _screenInfoList.push_back(ScreenInfo(i));
147 _gccache = new BGCCache(_screenInfoList.size());
151 void OBDisplay::destroy()
154 XCloseDisplay(display);