From ed250c3b740fdf90aaf09cac9e873bd66bcc6a81 Mon Sep 17 00:00:00 2001 From: Dana Jansens Date: Sat, 4 Jan 2003 02:57:47 +0000 Subject: [PATCH] basedisplay!! GAH NO FUCK OFF!@!( --- src/basedisplay.cc | 351 --------------------------------------------- src/basedisplay.hh | 120 ---------------- 2 files changed, 471 deletions(-) delete mode 100644 src/basedisplay.cc delete mode 100644 src/basedisplay.hh diff --git a/src/basedisplay.cc b/src/basedisplay.cc deleted file mode 100644 index 508c8e76..00000000 --- a/src/basedisplay.cc +++ /dev/null @@ -1,351 +0,0 @@ -// -*- mode: C++; indent-tabs-mode: nil; -*- - -#ifdef HAVE_CONFIG_H -# include "../config.h" -#endif // HAVE_CONFIG_H - -extern "C" { -#include -#include -#include -#include - -#ifdef SHAPE -# include -#endif // SHAPE - -#ifdef XINERAMA -# include -#endif // XINERAMA - -#ifdef HAVE_FCNTL_H -# include -#endif // HAVE_FCNTL_H - -#ifdef HAVE_STDIO_H -# include -#endif // HAVE_STDIO_H - -#ifdef HAVE_STDLIB_H -# include -#endif // HAVE_STDLIB_H - -#ifdef HAVE_STRING_H -# include -#endif // HAVE_STRING_H - -#ifdef HAVE_UNISTD_H -# include -# include -#endif // HAVE_UNISTD_H - -#ifdef HAVE_SYS_SELECT_H -# include -#endif // HAVE_SYS_SELECT_H - -#ifdef HAVE_SIGNAL_H -# include -#endif // HAVE_SIGNAL_H - -#ifdef HAVE_SYS_WAIT_H -# include -# include -#endif // HAVE_SYS_WAIT_H -} - -#include -using std::string; - -#include "basedisplay.hh" -#include "gccache.hh" -#include "timer.hh" -#include "otk/util.hh" - - -// X error handler to handle any and all X errors while the application is -// running -static bool internal_error = False; - -BaseDisplay *base_display; - -static int handleXErrors(Display *d, XErrorEvent *e) { -#ifdef DEBUG - char errtxt[128]; - - XGetErrorText(d, e->error_code, errtxt, 128); // XXX: use this!! - fprintf(stderr, "%s: X error: %s(%d) opcodes %d/%d\n resource 0x%lx\n", - base_display->getApplicationName(), errtxt, e->error_code, - e->request_code, e->minor_code, e->resourceid); -#else - // shutup gcc - (void) d; - (void) e; -#endif // DEBUG - - if (internal_error) abort(); - - return(False); -} - - -// signal handler to allow for proper and gentle shutdown - -static void signalhandler(int sig) { - - static int re_enter = 0; - - switch (sig) { - case SIGCHLD: - int status; - waitpid(-1, &status, WNOHANG | WUNTRACED); - break; - - default: - if (base_display->handleSignal(sig)) - return; - - fprintf(stderr, "%s: signal %d caught\n", - base_display->getApplicationName(), sig); - - if (! base_display->isStartup() && ! re_enter) { - internal_error = True; - - re_enter = 1; - fprintf(stderr, "shutting down\n"); - base_display->shutdown(); - } - - if (sig != SIGTERM && sig != SIGINT) { - fprintf(stderr, "aborting... dumping core\n"); - abort(); - } - - exit(0); - - break; - } -} - - -BaseDisplay::BaseDisplay(const char *app_name, const char *dpy_name) { - application_name = app_name; - - run_state = STARTUP; - - ::base_display = this; - - struct sigaction action; - - action.sa_handler = signalhandler; - action.sa_mask = sigset_t(); - action.sa_flags = SA_NOCLDSTOP | SA_NODEFER; - - sigaction(SIGPIPE, &action, NULL); - sigaction(SIGSEGV, &action, NULL); - sigaction(SIGFPE, &action, NULL); - sigaction(SIGTERM, &action, NULL); - sigaction(SIGINT, &action, NULL); - sigaction(SIGCHLD, &action, NULL); - sigaction(SIGHUP, &action, NULL); - sigaction(SIGUSR1, &action, NULL); - sigaction(SIGUSR2, &action, NULL); - - if (! (display = XOpenDisplay(dpy_name))) { - fprintf(stderr, - "BaseDisplay::BaseDisplay: connection to X server failed.\n"); - ::exit(2); - } else if (fcntl(ConnectionNumber(display), F_SETFD, 1) == -1) { - fprintf(stderr, - "BaseDisplay::BaseDisplay: couldn't mark display connection " - "as close-on-exec\n"); - ::exit(2); - } - - display_name = XDisplayName(dpy_name); - -#ifdef SHAPE - shape.extensions = XShapeQueryExtension(display, &shape.event_basep, - &shape.error_basep); -#else // !SHAPE - shape.extensions = False; -#endif // SHAPE - -#ifdef XINERAMA - if (XineramaQueryExtension(display, &xinerama.event_basep, - &xinerama.error_basep) && - XineramaQueryVersion(display, &xinerama.major, &xinerama.minor)) { -#ifdef DEBUG - fprintf(stderr, - "BaseDisplay::BaseDisplay: Found Xinerama version %d.%d\n", - xinerama.major, xinerama.minor); -#endif // DEBUG - xinerama.extensions = True; - } else { - xinerama.extensions = False; - } -#endif // XINERAMA - - XSetErrorHandler((XErrorHandler) handleXErrors); - - screenInfoList.reserve(ScreenCount(display)); - for (int i = 0; i < ScreenCount(display); ++i) - screenInfoList.push_back(ScreenInfo(this, i)); - - NumLockMask = ScrollLockMask = 0; - - const XModifierKeymap* const modmap = XGetModifierMapping(display); - if (modmap && modmap->max_keypermod > 0) { - const int mask_table[] = { - ShiftMask, LockMask, ControlMask, Mod1Mask, - Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask - }; - const size_t size = (sizeof(mask_table) / sizeof(mask_table[0])) * - modmap->max_keypermod; - // get the values of the keyboard lock modifiers - // Note: Caps lock is not retrieved the same way as Scroll and Num lock - // since it doesn't need to be. - const KeyCode num_lock = XKeysymToKeycode(display, XK_Num_Lock); - const KeyCode scroll_lock = XKeysymToKeycode(display, XK_Scroll_Lock); - - for (size_t cnt = 0; cnt < size; ++cnt) { - if (! modmap->modifiermap[cnt]) continue; - - if (num_lock == modmap->modifiermap[cnt]) - NumLockMask = mask_table[cnt / modmap->max_keypermod]; - if (scroll_lock == modmap->modifiermap[cnt]) - ScrollLockMask = mask_table[cnt / modmap->max_keypermod]; - } - } - - MaskList[0] = 0; - MaskList[1] = LockMask; - MaskList[2] = NumLockMask; - MaskList[3] = LockMask | NumLockMask; - MaskList[4] = ScrollLockMask; - MaskList[5] = ScrollLockMask | LockMask; - MaskList[6] = ScrollLockMask | NumLockMask; - MaskList[7] = ScrollLockMask | LockMask | NumLockMask; - MaskListLength = sizeof(MaskList) / sizeof(MaskList[0]); - - if (modmap) XFreeModifiermap(const_cast(modmap)); - - gccache = (BGCCache *) 0; -} - - -BaseDisplay::~BaseDisplay(void) { - delete gccache; - - XCloseDisplay(display); -} - - -void BaseDisplay::eventLoop(void) { - run(); - - const int xfd = ConnectionNumber(display); - - while (run_state == RUNNING && ! internal_error) { - if (XPending(display)) { - XEvent e; - XNextEvent(display, &e); - process_event(&e); - } else { - fd_set rfds; - timeval now, tm, *timeout = (timeval *) 0; - - FD_ZERO(&rfds); - FD_SET(xfd, &rfds); - - if (! timerList.empty()) { - const BTimer* const timer = timerList.top(); - - gettimeofday(&now, 0); - tm = timer->timeRemaining(now); - - timeout = &tm; - } - - select(xfd + 1, &rfds, 0, 0, timeout); - - // check for timer timeout - gettimeofday(&now, 0); - - // there is a small chance for deadlock here: - // *IF* the timer list keeps getting refreshed *AND* the time between - // timer->start() and timer->shouldFire() is within the timer's period - // then the timer will keep firing. This should be VERY near impossible. - while (! timerList.empty()) { - BTimer *timer = timerList.top(); - if (! timer->shouldFire(now)) - break; - - timerList.pop(); - - timer->fireTimeout(); - timer->halt(); - if (timer->isRecurring()) - timer->start(); - } - } - } -} - - -void BaseDisplay::addTimer(BTimer *timer) { - if (! timer) return; - - timerList.push(timer); -} - - -void BaseDisplay::removeTimer(BTimer *timer) { - timerList.release(timer); -} - - -/* - * Grabs a button, but also grabs the button in every possible combination - * with the keyboard lock keys, so that they do not cancel out the event. - - * if allow_scroll_lock is true then only the top half of the lock mask - * table is used and scroll lock is ignored. This value defaults to false. - */ -void BaseDisplay::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 { - unsigned int length = (allow_scroll_lock) ? MaskListLength / 2: - MaskListLength; - for (size_t cnt = 0; cnt < length; ++cnt) - XGrabButton(display, button, modifiers | MaskList[cnt], grab_window, - owner_events, event_mask, pointer_mode, keyboard_mode, - confine_to, cursor); -} - - -/* - * Releases the grab on a button, and ungrabs all possible combinations of the - * keyboard lock keys. - */ -void BaseDisplay::ungrabButton(unsigned int button, unsigned int modifiers, - Window grab_window) const { - for (size_t cnt = 0; cnt < MaskListLength; ++cnt) - XUngrabButton(display, button, modifiers | MaskList[cnt], grab_window); -} - - -const ScreenInfo* BaseDisplay::getScreenInfo(unsigned int s) const { - if (s < screenInfoList.size()) - return &screenInfoList[s]; - return (const ScreenInfo*) 0; -} - - -BGCCache* BaseDisplay::gcCache(void) const { - if (! gccache) - gccache = new BGCCache(this, screenInfoList.size()); - - return gccache; -} diff --git a/src/basedisplay.hh b/src/basedisplay.hh deleted file mode 100644 index aa1481ca..00000000 --- a/src/basedisplay.hh +++ /dev/null @@ -1,120 +0,0 @@ -// -*- mode: C++; indent-tabs-mode: nil; -*- -#ifndef __BaseDisplay_hh -#define __BaseDisplay_hh - -#include "screeninfo.hh" -#include "timer.hh" - -extern "C" { -#include -#include -} - -#include - -// forward declaration -class BGCCache; - -class BaseDisplay: public TimerQueueManager { -private: - struct BShape { - bool extensions; - int event_basep, error_basep; - }; - BShape shape; - -#ifdef XINERAMA - struct BXinerama { - bool extensions; - int event_basep, error_basep; - int major, minor; // version - }; - BXinerama xinerama; -#endif // XINERAMA - - unsigned int MaskList[8]; - size_t MaskListLength; - - enum RunState { STARTUP, RUNNING, SHUTDOWN }; - RunState run_state; - - Display *display; - mutable BGCCache *gccache; - - typedef std::vector ScreenInfoList; - ScreenInfoList screenInfoList; - TimerQueue timerList; - - const char *display_name, *application_name; - - // no copying! - BaseDisplay(const BaseDisplay &); - BaseDisplay& operator=(const BaseDisplay&); - -protected: - // pure virtual function... you must override this - virtual void process_event(XEvent *e) = 0; - - // the masks of the modifiers which are ignored in button events. - int NumLockMask, ScrollLockMask; - - -public: - BaseDisplay(const char *app_name, const char *dpy_name = 0); - virtual ~BaseDisplay(void); - - const ScreenInfo* getScreenInfo(const unsigned int s) const; - - BGCCache *gcCache(void) const; - - inline bool hasShapeExtensions(void) const - { return shape.extensions; } -#ifdef XINERAMA - inline bool hasXineramaExtensions(void) const - { return xinerama.extensions; } -#endif // XINERAMA - inline bool doShutdown(void) const - { return run_state == SHUTDOWN; } - inline bool isStartup(void) const - { return run_state == STARTUP; } - - inline Display *getXDisplay(void) const { return display; } - - inline const char *getXDisplayName(void) const - { return display_name; } - inline const char *getApplicationName(void) const - { return application_name; } - - inline unsigned int getNumberOfScreens(void) const - { return screenInfoList.size(); } - inline int getShapeEventBase(void) const - { return shape.event_basep; } -#ifdef XINERAMA - inline int getXineramaMajorVersion(void) const - { return xinerama.major; } -#endif // XINERAMA - - inline void shutdown(void) { run_state = SHUTDOWN; } - inline void run(void) { run_state = RUNNING; } - - 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 eventLoop(void); - - // from TimerQueueManager interface - virtual void addTimer(BTimer *timer); - virtual void removeTimer(BTimer *timer); - - // another pure virtual... this is used to handle signals that BaseDisplay - // doesn't understand itself - virtual bool handleSignal(int sig) = 0; -}; - - -#endif // __BaseDisplay_hh -- 2.39.2