X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fbase%2Flib_mouse.c;h=e84a964c1ccd63b8920518a3abf472b8ceb9cc9a;hp=621f8f70d29e69b4ac57f27349496b8155b244c4;hb=a1e63be290fce9e589bc57c9f753be09e8ac0cc7;hpb=b87ec59eb4557919fe1f8cec1c367cd81f061ed9 diff --git a/ncurses/base/lib_mouse.c b/ncurses/base/lib_mouse.c index 621f8f70..e84a964c 100644 --- a/ncurses/base/lib_mouse.c +++ b/ncurses/base/lib_mouse.c @@ -1,5 +1,5 @@ /**************************************************************************** - * Copyright (c) 1998-2009,2010 Free Software Foundation, Inc. * + * Copyright (c) 1998-2012,2013 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * @@ -84,7 +84,7 @@ #define CUR SP_TERMTYPE #endif -MODULE_ID("$Id: lib_mouse.c,v 1.120 2011/01/01 22:25:49 tom Exp $") +MODULE_ID("$Id: lib_mouse.c,v 1.140 2013/01/12 16:35:34 tom Exp $") #include @@ -120,6 +120,17 @@ make an error #endif #endif /* use_SYSMOUSE */ +#if USE_KLIBC_MOUSE +#include +#define pipe(handles) socketpair(AF_LOCAL, SOCK_STREAM, 0, handles) +#define DosWrite(hfile, pbuffer, cbwrite, pcbactual) \ + write(hfile, pbuffer, cbwrite) +#define DosExit(action, result ) /* do nothing */ +#define DosCreateThread(ptid, pfn, param, flag, cbStack) \ + (*(ptid) = _beginthread(pfn, NULL, cbStack, \ + (void *)param), (*(ptid) == -1)) +#endif + #define MY_TRACE TRACE_ICALLS|TRACE_IEVENT #define MASK_RELEASE(x) (mmask_t) NCURSES_MOUSE_MASK(x, 001) @@ -148,6 +159,9 @@ make an error #define INVALID_EVENT -1 #define NORMAL_EVENT 0 +#define ValidEvent(ep) ((ep)->id != INVALID_EVENT) +#define Invalidate(ep) (ep)->id = INVALID_EVENT + #if USE_GPM_SUPPORT #ifndef LIBGPM_SONAME @@ -211,7 +225,7 @@ write_event(SCREEN *sp, int down, int button, int x, int y) char buf[6]; unsigned long ignore; - strncpy(buf, key_mouse, 3); /* should be "\033[M" */ + strcpy(buf, "\033[M"); /* should be the same as key_mouse */ buf[3] = ' ' + (button - 1) + (down ? 0 : 0x40); buf[4] = ' ' + x - LEFT_COL + 1; buf[5] = ' ' + y - TOP_ROW + 1; @@ -219,7 +233,11 @@ write_event(SCREEN *sp, int down, int button, int x, int y) } static void +#if USE_KLIBC_MOUSE +mouse_server(void *param) +#else mouse_server(unsigned long param) +#endif { SCREEN *sp = (SCREEN *) param; unsigned short fWait = MOU_WAIT; @@ -245,7 +263,8 @@ mouse_server(unsigned long param) /* sit and wait on the event queue */ rc = MouReadEventQue(&mouev, &fWait, hmou); if (rc) { - sprintf(err, "Error reading mouse queue, rc=%lu.\r\n", rc); + _nc_SPRINTF(err, _nc_SLIMIT(sizeof(err)) + "Error reading mouse queue, rc=%lu.\r\n", rc); break; } if (!sp->_emxmouse_activated) @@ -271,9 +290,11 @@ mouse_server(unsigned long param) finish: oldstate = mouev.fs; } - } else - sprintf(err, "Error setting event mask, buttons=%d, rc=%lu.\r\n", - nbuttons, rc); + } else { + _nc_SPRINTF(err, _nc_SLIMIT(sizeof(err)) + "Error setting event mask, buttons=%d, rc=%lu.\r\n", + nbuttons, rc); + } DosWrite(2, err, strlen(err), &rc); MouClose(hmou); @@ -367,20 +388,26 @@ enable_xterm_mouse(SCREEN *sp, int enable) #if USE_EMX_MOUSE sp->_emxmouse_activated = enable; #else - NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx - "xterm-mouse", - TPARM_1(sp->_mouse_xtermcap, enable)); + NCURSES_PUTP2("xterm-mouse", TPARM_1(sp->_mouse_xtermcap, enable)); #endif sp->_mouse_active = enable; } #if USE_GPM_SUPPORT static bool -allow_gpm_mouse(void) +allow_gpm_mouse(SCREEN *sp) { bool result = FALSE; - /* GPM does printf's without checking if stdout is a terminal */ +#if USE_WEAK_SYMBOLS + /* Danger Robinson: do not use dlopen for libgpm if already loaded */ + if ((Gpm_Wgetch)) { + if (!sp->_mouse_gpm_loaded) { + T(("GPM library was already dlopen'd, not by us")); + } + } else +#endif + /* GPM does printf's without checking if stdout is a terminal */ if (isatty(fileno(stdout))) { char *list = getenv("NCURSES_GPM_TERMS"); char *env = getenv("TERM"); @@ -506,7 +533,7 @@ initialize_mousetype(SCREEN *sp) /* Try gpm first, because gpm may be configured to run in xterm */ #if USE_GPM_SUPPORT - if (allow_gpm_mouse()) { + if (allow_gpm_mouse(sp)) { if (!sp->_mouse_gpm_loaded) { #ifdef HAVE_LIBDL load_gpm_library(sp); @@ -673,7 +700,7 @@ _nc_mouse_init(SCREEN *sp) sp->_mouse_eventp = FirstEV(sp); for (i = 0; i < EV_MAX; i++) - sp->_mouse_events[i].id = INVALID_EVENT; + Invalidate(sp->_mouse_events + i); initialize_mousetype(sp); @@ -750,6 +777,7 @@ _nc_mouse_event(SCREEN *sp) eventp->bstate |= BUTTON3_RELEASED; break; default: + eventp->bstate |= REPORT_MOUSE_POSITION; break; } @@ -830,7 +858,6 @@ _nc_mouse_inline(SCREEN *sp) if (sp->_mouse_type == M_XTERM) { unsigned char kbuf[4]; - mmask_t prev; size_t grabbed; int res; @@ -896,35 +923,51 @@ _nc_mouse_inline(SCREEN *sp) /* processing code goes here */ eventp->bstate = 0; - prev = PREV(eventp)->bstate; #if USE_EMX_MOUSE #define PRESS_POSITION(n) \ - eventp->bstate = MASK_PRESS(n); \ - if (kbuf[0] & 0x40) \ - eventp->bstate = MASK_RELEASE(n) + do { \ + eventp->bstate = MASK_PRESS(n); \ + sp->_mouse_bstate |= MASK_PRESS(n); \ + if (kbuf[0] & 0x40) { \ + eventp->bstate = MASK_RELEASE(n); \ + sp->_mouse_bstate &= ~MASK_PRESS(n); \ + } \ + } while (0) #else #define PRESS_POSITION(n) \ - eventp->bstate = (mmask_t) (prev & MASK_PRESS(n) \ - ? REPORT_MOUSE_POSITION \ - : MASK_PRESS(n)) + do { \ + eventp->bstate = (mmask_t) (sp->_mouse_bstate & MASK_PRESS(n) \ + ? REPORT_MOUSE_POSITION \ + : MASK_PRESS(n)); \ + sp->_mouse_bstate |= MASK_PRESS(n); \ + } while (0) #endif switch (kbuf[0] & 0x3) { case 0x0: - if (kbuf[0] & 64) + if ((kbuf[0] & 96) == 96) { eventp->bstate = MASK_PRESS(4); - else + /* Do not record in sp->_mouse_bstate; there will be no + * corresponding release event. + */ + } else { PRESS_POSITION(1); + } break; case 0x1: + if ((kbuf[0] & 96) == 96) { #if NCURSES_MOUSE_VERSION == 2 - if (kbuf[0] & 64) eventp->bstate = MASK_PRESS(5); - else + /* See comment above for button 4 */ +#else + /* Ignore this event as it is not a true press of the button */ + eventp->bstate = REPORT_MOUSE_POSITION; #endif + } else { PRESS_POSITION(2); + } break; case 0x2: @@ -939,12 +982,13 @@ _nc_mouse_inline(SCREEN *sp) * release, we can infer the button actually released by looking at * the previous event. */ - if (prev & (BUTTON_PRESSED | BUTTON_RELEASED)) { + if (sp->_mouse_bstate & BUTTON_PRESSED) { eventp->bstate = BUTTON_RELEASED; for (b = 1; b <= MAX_BUTTONS; ++b) { - if (!(prev & MASK_PRESS(b))) + if (!(sp->_mouse_bstate & MASK_PRESS(b))) eventp->bstate &= ~MASK_RELEASE(b); } + sp->_mouse_bstate = 0; } else { /* * XFree86 xterm will return a stream of release-events to @@ -985,7 +1029,7 @@ _nc_mouse_inline(SCREEN *sp) } static void -mouse_activate(SCREEN *sp, bool on) +mouse_activate(SCREEN *sp, int on) { if (!on && !sp->_mouse_initialized) return; @@ -994,7 +1038,7 @@ mouse_activate(SCREEN *sp, bool on) return; if (on) { - + sp->_mouse_bstate = 0; switch (sp->_mouse_type) { case M_XTERM: #if NCURSES_EXT_FUNCS @@ -1074,10 +1118,13 @@ _nc_mouse_parse(SCREEN *sp, int runcount) /* parse a run of atomic mouse events into a gesture */ { MEVENT *eventp = sp->_mouse_eventp; - MEVENT *ep, *runp, *next, *prev = PREV(eventp); + MEVENT *next, *ep; + MEVENT *first_valid = NULL; + MEVENT *first_invalid = NULL; int n; int b; bool merge; + bool endLoop; TR(MY_TRACE, ("_nc_mouse_parse(%d) called", runcount)); @@ -1094,7 +1141,8 @@ _nc_mouse_parse(SCREEN *sp, int runcount) * * It's possible that the run may not resolve to a single event (for * example, if the user quadruple-clicks). If so, leading events - * in the run are ignored. + * in the run are ignored if user does not call getmouse in a loop (getting + * them from newest to older). * * Note that this routine is independent of the format of the specific * format of the pointing-device's reports. We can use it to parse @@ -1102,79 +1150,110 @@ _nc_mouse_parse(SCREEN *sp, int runcount) * button basis, as long as the device-dependent mouse code puts stuff * on the queue in MEVENT format. */ - if (runcount == 1) { - TR(MY_TRACE, - ("_nc_mouse_parse: returning simple mouse event %s at slot %ld", - _nc_tracemouse(sp, prev), - (long) IndexEV(sp, prev))); - return (prev->id >= NORMAL_EVENT) - ? ((prev->bstate & sp->_mouse_mask) ? TRUE : FALSE) - : FALSE; - } - /* find the start of the run */ - runp = eventp; - for (n = runcount; n > 0; n--) { - runp = PREV(runp); + /* + * Reset all events that were not set, in case the user sometimes calls + * getmouse only once and other times until there are no more events in + * queue. + * + * This also allows reaching the beginning of the run. + */ + ep = eventp; + for (n = runcount; n < EV_MAX; n++) { + Invalidate(ep); + ep = NEXT(ep); } #ifdef TRACE if (USE_TRACEF(TRACE_IEVENT)) { _trace_slot(sp, "before mouse press/release merge:"); _tracef("_nc_mouse_parse: run starts at %ld, ends at %ld, count %d", - RunParams(sp, eventp, runp), + RunParams(sp, eventp, ep), runcount); _nc_unlock_global(tracef); } #endif /* TRACE */ /* first pass; merge press/release pairs */ - do { - merge = FALSE; - for (ep = runp; (next = NEXT(ep)) != eventp; ep = next) { + endLoop = FALSE; + while (!endLoop) { + next = NEXT(ep); + if (next == eventp) { + /* Will end the loop, but compact before */ + endLoop = TRUE; + } else { #define MASK_CHANGED(x) (!(ep->bstate & MASK_PRESS(x)) \ == !(next->bstate & MASK_RELEASE(x))) - if (ep->x == next->x && ep->y == next->y + if (ValidEvent(ep) && ValidEvent(next) + && ep->x == next->x && ep->y == next->y && (ep->bstate & BUTTON_PRESSED) - && MASK_CHANGED(1) - && MASK_CHANGED(2) - && MASK_CHANGED(3) - && MASK_CHANGED(4) -#if NCURSES_MOUSE_VERSION == 2 - && MASK_CHANGED(5) -#endif - ) { + && (!(next->bstate & BUTTON_PRESSED))) { + bool changed = TRUE; + for (b = 1; b <= MAX_BUTTONS; ++b) { - if ((sp->_mouse_mask & MASK_CLICK(b)) - && (ep->bstate & MASK_PRESS(b))) { - ep->bstate &= ~MASK_PRESS(b); - ep->bstate |= MASK_CLICK(b); - merge = TRUE; + if (!MASK_CHANGED(b)) { + changed = FALSE; + break; + } + } + + if (changed) { + merge = FALSE; + for (b = 1; b <= MAX_BUTTONS; ++b) { + if ((sp->_mouse_mask & MASK_CLICK(b)) + && (ep->bstate & MASK_PRESS(b))) { + next->bstate &= ~MASK_RELEASE(b); + next->bstate |= MASK_CLICK(b); + merge = TRUE; + } + } + if (merge) { + Invalidate(ep); } } - if (merge) - next->id = INVALID_EVENT; } } - } while - (merge); + /* Compact valid events */ + if (!ValidEvent(ep)) { + if ((first_valid != NULL) && (first_invalid == NULL)) { + first_invalid = ep; + } + } else { + if (first_valid == NULL) { + first_valid = ep; + } else if (first_invalid != NULL) { + *first_invalid = *ep; + Invalidate(ep); + first_invalid = NEXT(first_invalid); + } + } + + ep = next; + } + + if (first_invalid != NULL) { + eventp = first_invalid; + } #ifdef TRACE if (USE_TRACEF(TRACE_IEVENT)) { _trace_slot(sp, "before mouse click merge:"); - _tracef("_nc_mouse_parse: run starts at %ld, ends at %ld, count %d", - RunParams(sp, eventp, runp), - runcount); - _nc_unlock_global(tracef); + if (first_valid == NULL) { + _tracef("_nc_mouse_parse: no valid event"); + } else { + _tracef("_nc_mouse_parse: run starts at %ld, ends at %ld, count %d", + RunParams(sp, eventp, first_valid), + runcount); + _nc_unlock_global(tracef); + } } #endif /* TRACE */ /* - * Second pass; merge click runs. At this point, click events are - * each followed by one invalid event. We merge click events - * forward in the queue. + * Second pass; merge click runs. We merge click events forward in the + * queue. For example, double click can be changed to triple click. * * NOTE: There is a problem with this design! If the application * allows enough click events to pile up in the circular queue so @@ -1187,87 +1266,102 @@ _nc_mouse_parse(SCREEN *sp, int runcount) * but the timer element would have to have sub-second resolution, * which would get us into portability trouble. */ - do { - MEVENT *follower; - - merge = FALSE; - for (ep = runp; (next = NEXT(ep)) != eventp; ep = next) - if (ep->id != INVALID_EVENT) { - if (next->id != INVALID_EVENT) - continue; - follower = NEXT(next); - if (follower->id == INVALID_EVENT) - continue; - - /* merge click events forward */ - if ((ep->bstate & BUTTON_CLICKED) - && (follower->bstate & BUTTON_CLICKED)) { - for (b = 1; b <= MAX_BUTTONS; ++b) { - if ((sp->_mouse_mask & MASK_DOUBLE_CLICK(b)) - && (follower->bstate & MASK_CLICK(b))) { - follower->bstate &= ~MASK_CLICK(b); - follower->bstate |= MASK_DOUBLE_CLICK(b); - merge = TRUE; - } + first_invalid = NULL; + endLoop = (first_valid == NULL); + ep = first_valid; + while (!endLoop) { + next = NEXT(ep); + + if (next == eventp) { + /* Will end the loop, but check event type and compact before */ + endLoop = TRUE; + } else if (!ValidEvent(next)) { + continue; + } else { + /* merge click events forward */ + if ((ep->bstate & BUTTON_CLICKED) + && (next->bstate & BUTTON_CLICKED)) { + merge = FALSE; + for (b = 1; b <= MAX_BUTTONS; ++b) { + if ((sp->_mouse_mask & MASK_DOUBLE_CLICK(b)) + && (ep->bstate & MASK_CLICK(b)) + && (next->bstate & MASK_CLICK(b))) { + next->bstate &= ~MASK_CLICK(b); + next->bstate |= MASK_DOUBLE_CLICK(b); + merge = TRUE; } - if (merge) - ep->id = INVALID_EVENT; } + if (merge) { + Invalidate(ep); + } + } - /* merge double-click events forward */ - if ((ep->bstate & BUTTON_DOUBLE_CLICKED) - && (follower->bstate & BUTTON_CLICKED)) { - for (b = 1; b <= MAX_BUTTONS; ++b) { - if ((sp->_mouse_mask & MASK_TRIPLE_CLICK(b)) - && (follower->bstate & MASK_CLICK(b))) { - follower->bstate &= ~MASK_CLICK(b); - follower->bstate |= MASK_TRIPLE_CLICK(b); - merge = TRUE; - } + /* merge double-click events forward */ + if ((ep->bstate & BUTTON_DOUBLE_CLICKED) + && (next->bstate & BUTTON_CLICKED)) { + merge = FALSE; + for (b = 1; b <= MAX_BUTTONS; ++b) { + if ((sp->_mouse_mask & MASK_TRIPLE_CLICK(b)) + && (ep->bstate & MASK_DOUBLE_CLICK(b)) + && (next->bstate & MASK_CLICK(b))) { + next->bstate &= ~MASK_CLICK(b); + next->bstate |= MASK_TRIPLE_CLICK(b); + merge = TRUE; } - if (merge) - ep->id = INVALID_EVENT; + } + if (merge) { + Invalidate(ep); } } - } while - (merge); + } -#ifdef TRACE - if (USE_TRACEF(TRACE_IEVENT)) { - _trace_slot(sp, "before mouse event queue compaction:"); - _tracef("_nc_mouse_parse: run starts at %ld, ends at %ld, count %d", - RunParams(sp, eventp, runp), - runcount); - _nc_unlock_global(tracef); - } -#endif /* TRACE */ + /* Discard event if it does not match event mask */ + if (!(ep->bstate & sp->_mouse_mask2)) { + Invalidate(ep); + } - /* - * Now try to throw away trailing events flagged invalid, or that - * don't match the current event mask. - */ - for (; runcount; prev = PREV(eventp), runcount--) - if (prev->id == INVALID_EVENT || !(prev->bstate & sp->_mouse_mask)) { - sp->_mouse_eventp = eventp = prev; + /* Compact valid events */ + if (!ValidEvent(ep)) { + if (ep == first_valid) { + first_valid = next; + } else if (first_invalid == NULL) { + first_invalid = ep; + } + } else if (first_invalid != NULL) { + *first_invalid = *ep; + Invalidate(ep); + first_invalid = NEXT(first_invalid); } + + ep = next; + } + + if (first_invalid == NULL) { + first_invalid = eventp; + } + sp->_mouse_eventp = first_invalid; + #ifdef TRACE - if (USE_TRACEF(TRACE_IEVENT)) { - _trace_slot(sp, "after mouse event queue compaction:"); - _tracef("_nc_mouse_parse: run starts at %ld, ends at %ld, count %d", - RunParams(sp, eventp, runp), - runcount); - _nc_unlock_global(tracef); + if (first_valid != NULL) { + if (USE_TRACEF(TRACE_IEVENT)) { + _trace_slot(sp, "after mouse event queue compaction:"); + _tracef("_nc_mouse_parse: run starts at %ld, ends at %ld, count %d", + RunParams(sp, first_invalid, first_valid), + runcount); + _nc_unlock_global(tracef); + } + for (ep = first_valid; ep != first_invalid; ep = NEXT(ep)) { + if (ValidEvent(ep)) + TR(MY_TRACE, + ("_nc_mouse_parse: returning composite mouse event %s at slot %ld", + _nc_tracemouse(sp, ep), + (long) IndexEV(sp, ep))); + } } - for (ep = runp; ep != eventp; ep = NEXT(ep)) - if (ep->id != INVALID_EVENT) - TR(MY_TRACE, - ("_nc_mouse_parse: returning composite mouse event %s at slot %ld", - _nc_tracemouse(sp, ep), - (long) IndexEV(sp, ep))); #endif /* TRACE */ /* after all this, do we have a valid event? */ - return (PREV(eventp)->id != INVALID_EVENT); + return ValidEvent(PREV(first_invalid)); } static void @@ -1359,7 +1453,16 @@ NCURSES_SP_NAME(getmouse) (NCURSES_SP_DCLx MEVENT * aevent) /* compute the current-event pointer */ MEVENT *prev = PREV(eventp); - if (prev->id != INVALID_EVENT) { + /* + * Discard events not matching mask (there could be still some if + * _nc_mouse_parse was not called, e.g., when _nc_mouse_inline returns + * false). + */ + while (ValidEvent(prev) && (!(prev->bstate & SP_PARM->_mouse_mask2))) { + Invalidate(prev); + prev = PREV(prev); + } + if (ValidEvent(prev)) { /* copy the event we find there */ *aevent = *prev; @@ -1367,9 +1470,16 @@ NCURSES_SP_NAME(getmouse) (NCURSES_SP_DCLx MEVENT * aevent) _nc_tracemouse(SP_PARM, prev), (long) IndexEV(SP_PARM, prev))); - prev->id = INVALID_EVENT; /* so the queue slot becomes free */ - SP_PARM->_mouse_eventp = PREV(prev); + Invalidate(prev); /* so the queue slot becomes free */ + SP_PARM->_mouse_eventp = prev; result = OK; + } else { + /* Reset the provided event */ + aevent->bstate = 0; + Invalidate(aevent); + aevent->x = 0; + aevent->y = 0; + aevent->z = 0; } } returnCode(result); @@ -1420,6 +1530,7 @@ NCURSES_SP_NAME(mousemask) (NCURSES_SP_DCLx mmask_t newmask, mmask_t * oldmask) /* set the mouse event mask */ { mmask_t result = 0; + int b; T((T_CALLED("mousemask(%p,%#lx,%p)"), (void *) SP_PARM, @@ -1447,6 +1558,22 @@ NCURSES_SP_NAME(mousemask) (NCURSES_SP_DCLx mmask_t newmask, mmask_t * oldmask) mouse_activate(SP_PARM, (bool) (result != 0)); SP_PARM->_mouse_mask = result; + SP_PARM->_mouse_mask2 = result; + + /* + * Make a mask corresponding to the states we will need to + * retain (temporarily) while building up the state that the + * user asked for. + */ + for (b = 1; b <= MAX_BUTTONS; ++b) { + if (SP_PARM->_mouse_mask2 & MASK_TRIPLE_CLICK(b)) + SP_PARM->_mouse_mask2 |= MASK_DOUBLE_CLICK(b); + if (SP_PARM->_mouse_mask2 & MASK_DOUBLE_CLICK(b)) + SP_PARM->_mouse_mask2 |= MASK_CLICK(b); + if (SP_PARM->_mouse_mask2 & MASK_CLICK(b)) + SP_PARM->_mouse_mask2 |= (MASK_PRESS(b) | + MASK_RELEASE(b)); + } } } }