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-rw-r--r--libXt/src/TMstate.c4717
1 files changed, 2357 insertions, 2360 deletions
diff --git a/libXt/src/TMstate.c b/libXt/src/TMstate.c
index bbae90887..45f02b60b 100644
--- a/libXt/src/TMstate.c
+++ b/libXt/src/TMstate.c
@@ -1,2360 +1,2357 @@
-/* $Xorg: TMstate.c,v 1.6 2001/02/09 02:03:58 xorgcvs Exp $ */
-
-/***********************************************************
-Copyright 1993 Sun Microsystems, Inc. All rights reserved.
-
-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 (including the next
-paragraph) 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.
-
-Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-/* $XFree86: xc/lib/Xt/TMstate.c,v 1.8 2001/12/14 19:56:31 dawes Exp $ */
-
-/*
-
-Copyright 1987, 1988, 1994, 1998 The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-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
-OPEN GROUP 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.
-
-Except as contained in this notice, the name of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
-
-*/
-
-/* TMstate.c -- maintains the state table of actions for the translation
- * manager.
- */
-/*LINTLIBRARY*/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "IntrinsicI.h"
-
-#ifndef TM_NO_MATCH
-#define TM_NO_MATCH (-2)
-#endif /* TM_NO_MATCH */
-
-/* forward definitions */
-static StatePtr NewState(TMParseStateTree, TMShortCard, TMShortCard);
-
-
-static String XtNtranslationError = "translationError";
-
-#ifndef __EMX__
-TMGlobalRec _XtGlobalTM; /* initialized to zero K&R */
-#else
-TMGlobalRec _XtGlobalTM = {0};
-#endif
-
-#define MatchIncomingEvent(tmEvent, typeMatch, modMatch) \
- (typeMatch->eventType == tmEvent->event.eventType && \
- (typeMatch->matchEvent != NULL) && \
- (*typeMatch->matchEvent)(typeMatch, modMatch, tmEvent))
-
-
-#define NumStateTrees(xlations) \
- ((translateData->isSimple) ? 1 : (TMComplexXlations(xlations))->numTrees)
-
-static TMShortCard GetBranchHead(
- TMParseStateTree parseTree,
- TMShortCard typeIndex,
- TMShortCard modIndex,
- Boolean isDummy)
-{
-#define TM_BRANCH_HEAD_TBL_ALLOC 8
-#define TM_BRANCH_HEAD_TBL_REALLOC 8
-
- TMBranchHead branchHead = parseTree->branchHeadTbl;
- TMShortCard newSize, i;
-
- /*
- * dummy is used as a place holder for later matching in old-style
- * matching behavior. If there's already an entry we don't need
- * another dummy.
- */
- if (isDummy) {
- for (i = 0; i < parseTree->numBranchHeads; i++, branchHead++) {
- if ((branchHead->typeIndex == typeIndex) &&
- (branchHead->modIndex == modIndex))
- return i;
- }
- }
- if (parseTree->numBranchHeads == parseTree->branchHeadTblSize)
- {
- if (parseTree->branchHeadTblSize == 0)
- parseTree->branchHeadTblSize += TM_BRANCH_HEAD_TBL_ALLOC;
- else
- parseTree->branchHeadTblSize +=
- TM_BRANCH_HEAD_TBL_REALLOC;
- newSize = (parseTree->branchHeadTblSize * sizeof(TMBranchHeadRec));
- if (parseTree->isStackBranchHeads) {
- TMBranchHead oldBranchHeadTbl = parseTree->branchHeadTbl;
- parseTree->branchHeadTbl = (TMBranchHead) __XtMalloc(newSize);
- XtMemmove(parseTree->branchHeadTbl, oldBranchHeadTbl, newSize);
- parseTree->isStackBranchHeads = False;
- }
- else {
- parseTree->branchHeadTbl = (TMBranchHead)
- XtRealloc((char *)parseTree->branchHeadTbl,
- (parseTree->branchHeadTblSize *
- sizeof(TMBranchHeadRec)));
- }
- }
-#ifdef TRACE_TM
- LOCK_PROCESS;
- _XtGlobalTM.numBranchHeads++;
- UNLOCK_PROCESS;
-#endif /* TRACE_TM */
- branchHead =
- &parseTree->branchHeadTbl[parseTree->numBranchHeads++];
- branchHead->typeIndex = typeIndex;
- branchHead->modIndex = modIndex;
- branchHead->more = 0;
- branchHead->isSimple = True;
- branchHead->hasActions = False;
- branchHead->hasCycles = False;
- return parseTree->numBranchHeads-1;
-}
-
-TMShortCard _XtGetQuarkIndex(
- TMParseStateTree parseTree,
- XrmQuark quark)
-{
-#define TM_QUARK_TBL_ALLOC 16
-#define TM_QUARK_TBL_REALLOC 16
- TMShortCard i = parseTree->numQuarks;
-
- for (i=0; i < parseTree->numQuarks; i++)
- if (parseTree->quarkTbl[i] == quark)
- break;
-
- if (i == parseTree->numQuarks)
- {
- if (parseTree->numQuarks == parseTree->quarkTblSize)
- {
- TMShortCard newSize;
-
- if (parseTree->quarkTblSize == 0)
- parseTree->quarkTblSize += TM_QUARK_TBL_ALLOC;
- else
- parseTree->quarkTblSize += TM_QUARK_TBL_REALLOC;
- newSize = (parseTree->quarkTblSize * sizeof(XrmQuark));
-
- if (parseTree->isStackQuarks) {
- XrmQuark *oldquarkTbl = parseTree->quarkTbl;
- parseTree->quarkTbl = (XrmQuark *) __XtMalloc(newSize);
- XtMemmove(parseTree->quarkTbl, oldquarkTbl, newSize);
- parseTree->isStackQuarks = False;
- }
- else {
- parseTree->quarkTbl = (XrmQuark *)
- XtRealloc((char *)parseTree->quarkTbl,
- (parseTree->quarkTblSize *
- sizeof(XrmQuark)));
- }
- }
- parseTree->quarkTbl[parseTree->numQuarks++] = quark;
- }
- return i;
-}
-
-/*
- * Get an entry from the parseTrees complex branchHead tbl. If there's none
- * there then allocate one
- */
-/*ARGSUSED*/
-static TMShortCard GetComplexBranchIndex(
- TMParseStateTree parseTree,
- TMShortCard typeIndex,
- TMShortCard modIndex)
-{
-#define TM_COMPLEXBRANCH_HEAD_TBL_ALLOC 8
-#define TM_COMPLEXBRANCH_HEAD_TBL_REALLOC 4
-
- if (parseTree->numComplexBranchHeads == parseTree->complexBranchHeadTblSize) {
- TMShortCard newSize;
-
- if (parseTree->complexBranchHeadTblSize == 0)
- parseTree->complexBranchHeadTblSize += TM_COMPLEXBRANCH_HEAD_TBL_ALLOC;
- else
- parseTree->complexBranchHeadTblSize += TM_COMPLEXBRANCH_HEAD_TBL_REALLOC;
-
- newSize = (parseTree->complexBranchHeadTblSize * sizeof(StatePtr));
-
- if (parseTree->isStackComplexBranchHeads) {
- StatePtr *oldcomplexBranchHeadTbl
- = parseTree->complexBranchHeadTbl;
- parseTree->complexBranchHeadTbl = (StatePtr *) __XtMalloc(newSize);
- XtMemmove(parseTree->complexBranchHeadTbl,
- oldcomplexBranchHeadTbl, newSize);
- parseTree->isStackComplexBranchHeads = False;
- }
- else {
- parseTree->complexBranchHeadTbl = (StatePtr *)
- XtRealloc((char *)parseTree->complexBranchHeadTbl,
- (parseTree->complexBranchHeadTblSize *
- sizeof(StatePtr)));
- }
- }
- parseTree->complexBranchHeadTbl[parseTree->numComplexBranchHeads++] = NULL;
- return parseTree->numComplexBranchHeads-1;
-}
-
-TMShortCard _XtGetTypeIndex(
- Event *event)
-{
- TMShortCard i, j = TM_TYPE_SEGMENT_SIZE;
- TMShortCard typeIndex = 0;
- TMTypeMatch typeMatch;
- TMTypeMatch segment = NULL;
-
- LOCK_PROCESS;
- for (i = 0; i < _XtGlobalTM.numTypeMatchSegments; i++) {
- segment = _XtGlobalTM.typeMatchSegmentTbl[i];
- for (j = 0;
- typeIndex < _XtGlobalTM.numTypeMatches && j < TM_TYPE_SEGMENT_SIZE;
- j++, typeIndex++)
- {
- typeMatch = &(segment[j]);
- if (event->eventType == typeMatch->eventType &&
- event->eventCode == typeMatch->eventCode &&
- event->eventCodeMask == typeMatch->eventCodeMask &&
- event->matchEvent == typeMatch->matchEvent) {
- UNLOCK_PROCESS;
- return typeIndex;
- }
- }
- }
-
- if (j == TM_TYPE_SEGMENT_SIZE) {
- if (_XtGlobalTM.numTypeMatchSegments == _XtGlobalTM.typeMatchSegmentTblSize) {
- _XtGlobalTM.typeMatchSegmentTblSize += 4;
- _XtGlobalTM.typeMatchSegmentTbl = (TMTypeMatch *)
- XtRealloc((char *)_XtGlobalTM.typeMatchSegmentTbl,
- (_XtGlobalTM.typeMatchSegmentTblSize * sizeof(TMTypeMatch)));
- }
- _XtGlobalTM.typeMatchSegmentTbl[_XtGlobalTM.numTypeMatchSegments++] =
- segment = (TMTypeMatch)
- __XtMalloc(TM_TYPE_SEGMENT_SIZE * sizeof(TMTypeMatchRec));
- j = 0;
- }
- typeMatch = &segment[j];
- typeMatch->eventType = event->eventType;
- typeMatch->eventCode = event->eventCode;
- typeMatch->eventCodeMask = event->eventCodeMask;
- typeMatch->matchEvent = event->matchEvent;
- _XtGlobalTM.numTypeMatches++;
- UNLOCK_PROCESS;
- return typeIndex;
-}
-
-static Boolean CompareLateModifiers(
- LateBindingsPtr lateBind1P,
- LateBindingsPtr lateBind2P)
-{
- LateBindingsPtr late1P = lateBind1P;
- LateBindingsPtr late2P = lateBind2P;
-
- if (late1P != NULL || late2P != NULL) {
- int i = 0;
- int j = 0;
- if (late1P != NULL)
- for (; late1P->keysym != NoSymbol; i++) late1P++;
- if (late2P != NULL)
- for (; late2P->keysym != NoSymbol; j++) late2P++;
- if (i != j) return FALSE;
- late1P--;
- while (late1P >= lateBind1P) {
- Boolean last = True;
- for (late2P = lateBind2P + i - 1;
- late2P >= lateBind2P;
- late2P--) {
- if (late1P->keysym == late2P->keysym
- && late1P->knot == late2P->knot) {
- j--;
- if (last) i--;
- break;
- }
- last = False;
- }
- late1P--;
- }
- if (j != 0) return FALSE;
- }
- return TRUE;
-}
-
-TMShortCard _XtGetModifierIndex(
- Event *event)
-{
- TMShortCard i, j = TM_MOD_SEGMENT_SIZE;
- TMShortCard modIndex = 0;
- TMModifierMatch modMatch;
- TMModifierMatch segment = NULL;
-
- LOCK_PROCESS;
- for (i = 0; i < _XtGlobalTM.numModMatchSegments; i++) {
- segment = _XtGlobalTM.modMatchSegmentTbl[i];
- for (j = 0;
- modIndex < _XtGlobalTM.numModMatches && j < TM_MOD_SEGMENT_SIZE;
- j++, modIndex++) {
- modMatch = &(segment[j]);
- if (event->modifiers == modMatch->modifiers &&
- event->modifierMask == modMatch->modifierMask &&
- event->standard == modMatch->standard &&
- ((!event->lateModifiers && !modMatch->lateModifiers) ||
- CompareLateModifiers(event->lateModifiers,
- modMatch->lateModifiers))) {
- /*
- * if we found a match then we can free the parser's
- * late modifiers. If there isn't a match we use the
- * parser's copy
- */
- if (event->lateModifiers &&
- --event->lateModifiers->ref_count == 0) {
- XtFree((char *)event->lateModifiers);
- event->lateModifiers = NULL;
- }
- UNLOCK_PROCESS;
- return modIndex;
- }
- }
- }
-
- if (j == TM_MOD_SEGMENT_SIZE) {
- if (_XtGlobalTM.numModMatchSegments == _XtGlobalTM.modMatchSegmentTblSize) {
- _XtGlobalTM.modMatchSegmentTblSize += 4;
- _XtGlobalTM.modMatchSegmentTbl = (TMModifierMatch *)
- XtRealloc((char *)_XtGlobalTM.modMatchSegmentTbl,
- (_XtGlobalTM.modMatchSegmentTblSize * sizeof(TMModifierMatch)));
- }
- _XtGlobalTM.modMatchSegmentTbl[_XtGlobalTM.numModMatchSegments++] =
- segment = (TMModifierMatch)
- __XtMalloc(TM_MOD_SEGMENT_SIZE * sizeof(TMModifierMatchRec));
- j = 0;
- }
- modMatch = &segment[j];
- modMatch->modifiers = event->modifiers;;
- modMatch->modifierMask = event->modifierMask;
- modMatch->standard = event->standard;
- /*
- * We use the parser's copy of the late binding array
- */
-#ifdef TRACE_TM
- if (event->lateModifiers)
- _XtGlobalTM.numLateBindings++;
-#endif /* TRACE_TM */
- modMatch->lateModifiers = event->lateModifiers;
- _XtGlobalTM.numModMatches++;
- UNLOCK_PROCESS;
- return modIndex;
-}
-
-
-/*
- * This is called from the SimpleStateHandler to match a stateTree
- * entry to the event coming in
- */
-static int MatchBranchHead(
- TMSimpleStateTree stateTree,
- int startIndex,
- TMEventPtr event)
-{
- TMBranchHead branchHead = &stateTree->branchHeadTbl[startIndex];
- int i;
-
- LOCK_PROCESS;
- for (i = startIndex;
- i < (int)stateTree->numBranchHeads;
- i++, branchHead++)
- {
- TMTypeMatch typeMatch;
- TMModifierMatch modMatch;
-
- typeMatch = TMGetTypeMatch(branchHead->typeIndex);
- modMatch = TMGetModifierMatch(branchHead->modIndex);
-
- if (MatchIncomingEvent(event, typeMatch, modMatch)) {
- UNLOCK_PROCESS;
- return i;
- }
- }
- UNLOCK_PROCESS;
- return (TM_NO_MATCH);
-}
-
-Boolean _XtRegularMatch(
- TMTypeMatch typeMatch,
- TMModifierMatch modMatch,
- TMEventPtr eventSeq)
-{
- Modifiers computed =0;
- Modifiers computedMask =0;
- Boolean resolved = TRUE;
- if (typeMatch->eventCode != (eventSeq->event.eventCode &
- typeMatch->eventCodeMask)) return FALSE;
- if (modMatch->lateModifiers != NULL)
- resolved = _XtComputeLateBindings(eventSeq->xev->xany.display,
- modMatch->lateModifiers,
- &computed, &computedMask);
- if (!resolved) return FALSE;
- computed |= modMatch->modifiers;
- computedMask |= modMatch->modifierMask;
-
- return ( (computed & computedMask) ==
- (eventSeq->event.modifiers & computedMask));
-}
-
-/*ARGSUSED*/
-Boolean _XtMatchAtom(
- TMTypeMatch typeMatch,
- TMModifierMatch modMatch,
- TMEventPtr eventSeq)
-{
- Atom atom;
-
- atom = XInternAtom(eventSeq->xev->xany.display,
- XrmQuarkToString(typeMatch->eventCode),
- False);
- return (atom == eventSeq->event.eventCode);
-}
-
-#define IsOn(vec,idx) ((vec)[(idx)>>3] & (1 << ((idx) & 7)))
-
-/*
- * there are certain cases where you want to ignore the event and stay
- * in the same state.
- */
-static Boolean Ignore(
- TMEventPtr event)
-{
- Display *dpy;
- XtPerDisplay pd;
-
- if (event->event.eventType == MotionNotify)
- return TRUE;
- if (!(event->event.eventType == KeyPress ||
- event->event.eventType == KeyRelease))
- return FALSE;
- dpy = event->xev->xany.display;
- pd = _XtGetPerDisplay(dpy);
- _InitializeKeysymTables(dpy, pd);
- return IsOn(pd->isModifier, event->event.eventCode) ? TRUE : FALSE;
-}
-
-
-static void XEventToTMEvent(
- XEvent *event,
- TMEventPtr tmEvent)
-{
- tmEvent->xev = event;
- tmEvent->event.eventCodeMask = 0;
- tmEvent->event.modifierMask = 0;
- tmEvent->event.eventType = event->type;
- tmEvent->event.lateModifiers = NULL;
- tmEvent->event.matchEvent = NULL;
- tmEvent->event.standard = FALSE;
-
- switch (event->type) {
-
- case KeyPress:
- case KeyRelease:
- tmEvent->event.eventCode = event->xkey.keycode;
- tmEvent->event.modifiers = event->xkey.state;
- break;
-
- case ButtonPress:
- case ButtonRelease:
- tmEvent->event.eventCode = event->xbutton.button;
- tmEvent->event.modifiers = event->xbutton.state;
- break;
-
- case MotionNotify:
- tmEvent->event.eventCode = event->xmotion.is_hint;
- tmEvent->event.modifiers = event->xmotion.state;
- break;
-
- case EnterNotify:
- case LeaveNotify:
- tmEvent->event.eventCode = event->xcrossing.mode;
- tmEvent->event.modifiers = event->xcrossing.state;
- break;
-
- case PropertyNotify:
- tmEvent->event.eventCode = event->xproperty.atom;
- tmEvent->event.modifiers = 0;
- break;
-
- case SelectionClear:
- tmEvent->event.eventCode = event->xselectionclear.selection;
- tmEvent->event.modifiers = 0;
- break;
-
- case SelectionRequest:
- tmEvent->event.eventCode = event->xselectionrequest.selection;
- tmEvent->event.modifiers = 0;
- break;
-
- case SelectionNotify:
- tmEvent->event.eventCode = event->xselection.selection;
- tmEvent->event.modifiers = 0;
- break;
-
- case ClientMessage:
- tmEvent->event.eventCode = event->xclient.message_type;
- tmEvent->event.modifiers = 0;
- break;
-
- case MappingNotify:
- tmEvent->event.eventCode = event->xmapping.request;
- tmEvent->event.modifiers = 0;
- break;
-
- case FocusIn:
- case FocusOut:
- tmEvent->event.eventCode = event->xfocus.mode;
- tmEvent->event.modifiers = 0;
- break;
-
- default:
- tmEvent->event.eventCode = 0;
- tmEvent->event.modifiers = 0;
- break;
- }
-}
-
-
-static unsigned long GetTime(
- XtTM tm,
- XEvent *event)
-{
- switch (event->type) {
-
- case KeyPress:
- case KeyRelease:
- return event->xkey.time;
-
- case ButtonPress:
- case ButtonRelease:
- return event->xbutton.time;
-
- default:
- return tm->lastEventTime;
-
- }
-
-}
-
-static void HandleActions(
- Widget w,
- XEvent *event,
- TMSimpleStateTree stateTree,
- Widget accelWidget,
- XtActionProc *procs,
- ActionRec *actions)
-{
- ActionHook actionHookList;
- Widget bindWidget;
-
- bindWidget = accelWidget ? accelWidget : w;
- if (accelWidget && !XtIsSensitive(accelWidget) &&
- (event->type == KeyPress || event->type == KeyRelease ||
- event->type == ButtonPress || event->type == ButtonRelease ||
- event->type == MotionNotify || event->type == EnterNotify ||
- event->type == LeaveNotify || event->type == FocusIn ||
- event->type == FocusOut))
- return;
-
- actionHookList = XtWidgetToApplicationContext(w)->action_hook_list;
-
- while (actions != NULL) {
- /* perform any actions */
- if (procs[actions->idx] != NULL) {
- if (actionHookList) {
- ActionHook hook;
- ActionHook next_hook;
- String procName =
- XrmQuarkToString(stateTree->quarkTbl[actions->idx] );
-
- for (hook = actionHookList; hook != NULL; ) {
- /*
- * Need to cache hook->next because the following action
- * proc may free hook via XtRemoveActionHook making
- * hook->next invalid upon return from the action proc.
- */
- next_hook = hook->next;
- (*hook->proc)(bindWidget,
- hook->closure,
- procName,
- event,
- actions->params,
- &actions->num_params
- );
- hook = next_hook;
- }
- }
- (*(procs[actions->idx]))
- (bindWidget, event,
- actions->params, &actions->num_params );
- }
- actions = actions->next;
- }
-}
-
-typedef struct {
- unsigned int isCycleStart:1;
- unsigned int isCycleEnd:1;
- TMShortCard typeIndex;
- TMShortCard modIndex;
-}MatchPairRec, *MatchPair;
-
-typedef struct TMContextRec{
- TMShortCard numMatches;
- TMShortCard maxMatches;
- MatchPair matches;
-}TMContextRec, *TMContext;
-
-static TMContextRec contextCache[2];
-
-#define GetContextPtr(tm) ((TMContext *)&(tm->current_state))
-
-#define TM_CONTEXT_MATCHES_ALLOC 4
-#define TM_CONTEXT_MATCHES_REALLOC 2
-
-static void PushContext(
- TMContext *contextPtr,
- StatePtr newState)
-{
- TMContext context = *contextPtr;
-
- LOCK_PROCESS;
- if (context == NULL)
- {
- if (contextCache[0].numMatches == 0)
- context = &contextCache[0];
- else if (contextCache[1].numMatches == 0)
- context = &contextCache[1];
- if (!context)
- {
- context = XtNew(TMContextRec);
- context->matches = NULL;
- context->numMatches =
- context->maxMatches = 0;
- }
- }
- if (context->numMatches &&
- context->matches[context->numMatches-1].isCycleEnd)
- {
- TMShortCard i;
- for (i = 0;
- i < context->numMatches &&
- !(context->matches[i].isCycleStart);
- i++){};
- if (i < context->numMatches)
- context->numMatches = i+1;
-#ifdef DEBUG
- else
- XtWarning("pushing cycle end with no cycle start");
-#endif /* DEBUG */
- }
- else
- {
- if (context->numMatches == context->maxMatches)
- {
- if (context->maxMatches == 0)
- context->maxMatches += TM_CONTEXT_MATCHES_ALLOC;
- else
- context->maxMatches += TM_CONTEXT_MATCHES_REALLOC;
- context->matches = (MatchPairRec *)
- XtRealloc((char *)context->matches,
- context->maxMatches * sizeof(MatchPairRec));
- }
- context->matches[context->numMatches].isCycleStart = newState->isCycleStart;
- context->matches[context->numMatches].isCycleEnd = newState->isCycleEnd;
- context->matches[context->numMatches].typeIndex = newState->typeIndex;
- context->matches[context->numMatches++].modIndex = newState->modIndex;
- *contextPtr = context;
- }
- UNLOCK_PROCESS;
-}
-
-static void FreeContext(
- TMContext *contextPtr)
-{
- TMContext context = NULL;
-
- LOCK_PROCESS;
-
- if (&contextCache[0] == *contextPtr)
- context = &contextCache[0];
- else if (&contextCache[1] == *contextPtr)
- context = &contextCache[1];
-
- if (context)
- context->numMatches = 0;
- else if (*contextPtr)
- {
- if ((*contextPtr)->matches)
- XtFree ((char *) ((*contextPtr)->matches));
- XtFree((char *)*contextPtr);
- }
-
- *contextPtr = NULL;
- UNLOCK_PROCESS;
-}
-
-static int MatchExact(
- TMSimpleStateTree stateTree,
- int startIndex,
- TMShortCard typeIndex,
- TMShortCard modIndex)
-{
- TMBranchHead branchHead = &(stateTree->branchHeadTbl[startIndex]);
- int i;
-
- for (i = startIndex;
- i < (int)stateTree->numBranchHeads;
- i++, branchHead++)
- {
- if ((branchHead->typeIndex == typeIndex) &&
- (branchHead->modIndex == modIndex))
- return i;
- }
- return (TM_NO_MATCH);
-}
-
-
-
-static void HandleSimpleState(
- Widget w,
- XtTM tmRecPtr,
- TMEventRec *curEventPtr)
-{
- XtTranslations xlations = tmRecPtr->translations;
- TMSimpleStateTree stateTree;
- TMContext *contextPtr = GetContextPtr(tmRecPtr);
- TMShortCard i;
- ActionRec *actions = NULL;
- Boolean matchExact = False;
- Boolean match = False;
- StatePtr complexMatchState = NULL;
- int currIndex;
- TMShortCard typeIndex = 0, modIndex = 0;
- int matchTreeIndex = TM_NO_MATCH;
-
- LOCK_PROCESS;
- stateTree = (TMSimpleStateTree)xlations->stateTreeTbl[0];
-
- for (i = 0;
- ((!match || !complexMatchState) && (i < xlations->numStateTrees));
- i++){
- stateTree = (TMSimpleStateTree)xlations->stateTreeTbl[i];
- currIndex = -1;
- /*
- * don't process this tree if we're only looking for a
- * complexMatchState and there are no complex states
- */
- while (!(match && stateTree->isSimple) &&
- ((!match || !complexMatchState) && (currIndex != TM_NO_MATCH))) {
- currIndex++;
- if (matchExact)
- currIndex = MatchExact(stateTree,currIndex,typeIndex,modIndex);
- else
- currIndex = MatchBranchHead(stateTree,currIndex,curEventPtr);
- if (currIndex != TM_NO_MATCH) {
- TMBranchHead branchHead;
- StatePtr currState;
-
- branchHead = &stateTree->branchHeadTbl[currIndex];
- if (branchHead->isSimple)
- currState = NULL;
- else
- currState = ((TMComplexStateTree)stateTree)
- ->complexBranchHeadTbl[TMBranchMore(branchHead)];
-
- /*
- * first check for a complete match
- */
- if (!match) {
- if (branchHead->hasActions) {
- if (branchHead->isSimple) {
- static ActionRec dummyAction;
-
- dummyAction.idx = TMBranchMore(branchHead);
- actions = &dummyAction;
- }
- else
- actions = currState->actions;
- tmRecPtr->lastEventTime =
- GetTime(tmRecPtr, curEventPtr->xev);
- FreeContext((TMContext
- *)&tmRecPtr->current_state);
- match = True;
- matchTreeIndex = i;
- }
- /*
- * if it doesn't have actions and
- * it's bc mode then it's a potential match node that is
- * used to match later sequences.
- */
- if (!TMNewMatchSemantics() && !matchExact) {
- matchExact = True;
- typeIndex = branchHead->typeIndex;
- modIndex = branchHead->modIndex;
- }
- }
- /*
- * check for it being an event sequence which can be
- * a future match
- */
- if (!branchHead->isSimple &&
- !branchHead->hasActions &&
- !complexMatchState)
- complexMatchState = currState;
- }
- }
- }
- if (match)
- {
- TMBindData bindData = (TMBindData) tmRecPtr->proc_table;
- XtActionProc *procs;
- Widget accelWidget;
-
- if (bindData->simple.isComplex) {
- TMComplexBindProcs bindProcs =
- TMGetComplexBindEntry(bindData, matchTreeIndex);
- procs = bindProcs->procs;
- accelWidget = bindProcs->widget;
- }
- else {
- TMSimpleBindProcs bindProcs =
- TMGetSimpleBindEntry(bindData, matchTreeIndex);
- procs = bindProcs->procs;
- accelWidget = NULL;
- }
- HandleActions
- (w,
- curEventPtr->xev,
- (TMSimpleStateTree)xlations->stateTreeTbl[matchTreeIndex],
- accelWidget,
- procs,
- actions);
- }
- if (complexMatchState)
- PushContext(contextPtr, complexMatchState);
- UNLOCK_PROCESS;
-}
-
-static int MatchComplexBranch(
- TMComplexStateTree stateTree,
- int startIndex,
- TMContext context,
- StatePtr *leafStateRtn)
-{
- TMShortCard i;
-
- LOCK_PROCESS;
- for (i = startIndex; i < stateTree->numComplexBranchHeads; i++)
- {
- StatePtr candState;
- TMShortCard numMatches = context->numMatches;
- MatchPair statMatch = context->matches;
-
- for (candState = stateTree->complexBranchHeadTbl[i];
- numMatches && candState;
- numMatches--, statMatch++, candState = candState->nextLevel)
- {
- if ((statMatch->typeIndex != candState->typeIndex) ||
- (statMatch->modIndex != candState->modIndex))
- break;
- }
- if (numMatches == 0) {
- *leafStateRtn = candState;
- UNLOCK_PROCESS;
- return i;
- }
- }
- *leafStateRtn = NULL;
- UNLOCK_PROCESS;
- return (TM_NO_MATCH);
-}
-
-static StatePtr TryCurrentTree(
- TMComplexStateTree *stateTreePtr,
- XtTM tmRecPtr,
- TMEventRec *curEventPtr)
-{
- StatePtr candState = NULL, matchState = NULL;
- TMContext *contextPtr = GetContextPtr(tmRecPtr);
- TMTypeMatch typeMatch;
- TMModifierMatch modMatch;
- int currIndex = -1;
-
- /*
- * we want the first sequence that both matches and has actions.
- * we keep on looking till we find both
- */
- LOCK_PROCESS;
- while ((currIndex =
- MatchComplexBranch(*stateTreePtr,
- ++currIndex,
- (*contextPtr),
- &candState))
- != TM_NO_MATCH) {
- if (candState != NULL) {
- typeMatch = TMGetTypeMatch(candState->typeIndex);
- modMatch = TMGetModifierMatch(candState->modIndex);
-
- /* does this state's index match? --> done */
- if (MatchIncomingEvent(curEventPtr, typeMatch, modMatch))
- {
- if (candState->actions) {
- UNLOCK_PROCESS;
- return candState;
- }
- else
- matchState = candState;
- }
- /* is this an event timer? */
- if (typeMatch->eventType == _XtEventTimerEventType) {
- StatePtr nextState = candState->nextLevel;
-
- /* does the succeeding state match? */
- if (nextState != NULL) {
- TMTypeMatch nextTypeMatch;
- TMModifierMatch nextModMatch;
-
- nextTypeMatch = TMGetTypeMatch(nextState->typeIndex);
- nextModMatch = TMGetModifierMatch(nextState->modIndex);
-
- /* is it within the timeout? */
- if (MatchIncomingEvent(curEventPtr,
- nextTypeMatch,
- nextModMatch)) {
- XEvent *xev = curEventPtr->xev;
- unsigned long time = GetTime(tmRecPtr, xev);
- XtPerDisplay pd = _XtGetPerDisplay(xev->xany.display);
- unsigned long delta = pd->multi_click_time;
-
- if ((tmRecPtr->lastEventTime + delta) >= time) {
- if (nextState->actions) {
- UNLOCK_PROCESS;
- return candState;
- }
- else
- matchState = candState;
- }
- }
- }
- }
- }
- }
- UNLOCK_PROCESS;
- return matchState;
-}
-
-static void HandleComplexState(
- Widget w,
- XtTM tmRecPtr,
- TMEventRec *curEventPtr)
-{
- XtTranslations xlations = tmRecPtr->translations;
- TMContext *contextPtr = GetContextPtr(tmRecPtr);
- TMShortCard i, matchTreeIndex = 0;
- StatePtr matchState = NULL, candState;
- TMComplexStateTree *stateTreePtr =
- (TMComplexStateTree *)&xlations->stateTreeTbl[0];
-
- LOCK_PROCESS;
- for (i = 0;
- i < xlations->numStateTrees;
- i++, stateTreePtr++) {
- /*
- * some compilers sign extend Boolean bit fields so test for
- * false |||
- */
- if (((*stateTreePtr)->isSimple == False) &&
- (candState = TryCurrentTree(stateTreePtr,
- tmRecPtr,
- curEventPtr))) {
- if (!matchState || candState->actions) {
- matchTreeIndex = i;
- matchState = candState;
- if (candState->actions)
- break;
- }
- }
- }
- if (matchState == NULL){
- /* couldn't find it... */
- if (!Ignore(curEventPtr))
- {
- FreeContext(contextPtr);
- HandleSimpleState(w, tmRecPtr, curEventPtr);
- }
- }
- else {
- TMBindData bindData = (TMBindData) tmRecPtr->proc_table;
- XtActionProc *procs;
- Widget accelWidget;
- TMTypeMatch typeMatch;
-
- typeMatch = TMGetTypeMatch(matchState->typeIndex);
-
- PushContext(contextPtr, matchState);
- if (typeMatch->eventType == _XtEventTimerEventType) {
- matchState = matchState->nextLevel;
- PushContext(contextPtr, matchState);
- }
- tmRecPtr->lastEventTime = GetTime (tmRecPtr, curEventPtr->xev);
-
- if (bindData->simple.isComplex) {
- TMComplexBindProcs bindProcs =
- TMGetComplexBindEntry(bindData, matchTreeIndex);
- procs = bindProcs->procs;
- accelWidget = bindProcs->widget;
- }
- else {
- TMSimpleBindProcs bindProcs =
- TMGetSimpleBindEntry(bindData, matchTreeIndex);
- procs = bindProcs->procs;
- accelWidget = NULL;
- }
- HandleActions(w,
- curEventPtr->xev,
- (TMSimpleStateTree)
- xlations->stateTreeTbl[matchTreeIndex],
- accelWidget,
- procs,
- matchState->actions);
- }
- UNLOCK_PROCESS;
-}
-
-
-void _XtTranslateEvent (
- Widget w,
- XEvent * event)
-{
- XtTM tmRecPtr = &w->core.tm;
- TMEventRec curEvent;
- StatePtr current_state = tmRecPtr->current_state;
-
- XEventToTMEvent (event, &curEvent);
-
- if (! tmRecPtr->translations) {
- XtAppWarningMsg(XtWidgetToApplicationContext(w),
- XtNtranslationError,"nullTable",XtCXtToolkitError,
- "Can't translate event through NULL table",
- (String *)NULL, (Cardinal *)NULL);
- return ;
- }
- if (current_state == NULL)
- HandleSimpleState(w, tmRecPtr, &curEvent);
- else
- HandleComplexState(w, tmRecPtr, &curEvent);
-}
-
-
-/*ARGSUSED*/
-static StatePtr NewState(
- TMParseStateTree stateTree,
- TMShortCard typeIndex,
- TMShortCard modIndex)
-{
- StatePtr state = XtNew(StateRec);
-
-#ifdef TRACE_TM
- LOCK_PROCESS;
- _XtGlobalTM.numComplexStates++;
- UNLOCK_PROCESS;
-#endif /* TRACE_TM */
- state->typeIndex = typeIndex;
- state->modIndex = modIndex;
- state->nextLevel = NULL;
- state->actions = NULL;
- state->isCycleStart = state->isCycleEnd = False;
- return state;
-}
-
-/*
- * This routine is an iterator for state trees. If the func returns
- * true then iteration is over.
- */
-void _XtTraverseStateTree(
- TMStateTree tree,
- _XtTraversalProc func,
- XtPointer data)
-{
- TMComplexStateTree stateTree = (TMComplexStateTree)tree;
- TMBranchHead currBH;
- TMShortCard i;
- StateRec dummyStateRec, *dummyState = &dummyStateRec;
- ActionRec dummyActionRec, *dummyAction = &dummyActionRec;
- Boolean firstSimple = True;
- StatePtr currState;
-
- /* first traverse the complex states */
- if (stateTree->isSimple == False)
- for (i = 0; i < stateTree->numComplexBranchHeads; i++) {
- currState = stateTree->complexBranchHeadTbl[i];
- for (; currState; currState = currState->nextLevel) {
- if (func(currState, data))
- return;
- if (currState->isCycleEnd)
- break;
- }
- }
-
- /* now traverse the simple ones */
- for (i = 0, currBH = stateTree->branchHeadTbl;
- i < stateTree->numBranchHeads;
- i++, currBH++)
- {
- if (currBH->isSimple && currBH->hasActions)
- {
- if (firstSimple)
- {
- XtBZero((char *) dummyState, sizeof(StateRec));
- XtBZero((char *) dummyAction, sizeof(ActionRec));
- dummyState->actions = dummyAction;
- firstSimple = False;
- }
- dummyState->typeIndex = currBH->typeIndex;
- dummyState->modIndex = currBH->modIndex;
- dummyAction->idx = currBH->more;
- if (func(dummyState, data))
- return;
- }
- }
-}
-
-static EventMask EventToMask(
- TMTypeMatch typeMatch,
- TMModifierMatch modMatch)
-{
- EventMask returnMask;
- unsigned long eventType = typeMatch->eventType;
-
- if (eventType == MotionNotify) {
- Modifiers modifierMask = modMatch->modifierMask;
- Modifiers tempMask;
-
- returnMask = 0;
- if (modifierMask == 0) {
- if (modMatch->modifiers == AnyButtonMask)
- return ButtonMotionMask;
- else
- return PointerMotionMask;
- }
- tempMask = modifierMask &
- (Button1Mask | Button2Mask | Button3Mask
- | Button4Mask | Button5Mask);
- if (tempMask == 0)
- return PointerMotionMask;
- if (tempMask & Button1Mask)
- returnMask |= Button1MotionMask;
- if (tempMask & Button2Mask)
- returnMask |= Button2MotionMask;
- if (tempMask & Button3Mask)
- returnMask |= Button3MotionMask;
- if (tempMask & Button4Mask)
- returnMask |= Button4MotionMask;
- if (tempMask & Button5Mask)
- returnMask |= Button5MotionMask;
- return returnMask;
- }
- returnMask = _XtConvertTypeToMask(eventType);
- if (returnMask == (StructureNotifyMask|SubstructureNotifyMask))
- returnMask = StructureNotifyMask;
- return returnMask;
-}
-
-/*ARGSUSED*/
-static void DispatchMappingNotify(
- Widget widget, /* will be NULL from _RefreshMapping */
- XtPointer closure, /* real Widget */
- XtPointer call_data) /* XEvent* */
-{
- _XtTranslateEvent( (Widget)closure, (XEvent*)call_data);
-}
-
-
-/*ARGSUSED*/
-static void RemoveFromMappingCallbacks(
- Widget widget,
- XtPointer closure, /* target widget */
- XtPointer call_data)
-{
- _XtRemoveCallback( &_XtGetPerDisplay(XtDisplay(widget))->mapping_callbacks,
- DispatchMappingNotify,
- closure
- );
-}
-
-static Boolean AggregateEventMask(
- StatePtr state,
- XtPointer data)
-{
- LOCK_PROCESS;
- *((EventMask *)data) |= EventToMask(TMGetTypeMatch(state->typeIndex),
- TMGetModifierMatch(state->modIndex));
- UNLOCK_PROCESS;
- return False;
-}
-
-void _XtInstallTranslations(
- Widget widget)
-{
- XtTranslations xlations;
- Cardinal i;
- TMStateTree stateTree;
- Boolean mappingNotifyInterest = False;
-
- xlations = widget->core.tm.translations;
- if (xlations == NULL) return;
-
- /*
- * check for somebody stuffing the translations directly into the
- * instance structure. We will end up being called again out of
- * ComposeTranslations but we *should* have bindings by then
- */
- if (widget->core.tm.proc_table == NULL) {
- _XtMergeTranslations(widget, NULL, XtTableReplace);
- /*
- * if we're realized then we'll be called out of
- * ComposeTranslations
- */
- if (XtIsRealized(widget))
- return;
- }
-
- xlations->eventMask = 0;
- for (i = 0;
- i < xlations->numStateTrees;
- i++)
- {
- stateTree = xlations->stateTreeTbl[i];
- _XtTraverseStateTree(stateTree,
- AggregateEventMask,
- (XtPointer)&xlations->eventMask);
- mappingNotifyInterest |= stateTree->simple.mappingNotifyInterest;
- }
- /* double click needs to make sure that you have selected on both
- button down and up. */
-
- if (xlations->eventMask & ButtonPressMask)
- xlations->eventMask |= ButtonReleaseMask;
- if (xlations->eventMask & ButtonReleaseMask)
- xlations->eventMask |= ButtonPressMask;
-
- if (mappingNotifyInterest) {
- XtPerDisplay pd = _XtGetPerDisplay(XtDisplay(widget));
- if (pd->mapping_callbacks)
- _XtAddCallbackOnce(&(pd->mapping_callbacks),
- DispatchMappingNotify,
- (XtPointer)widget);
- else
- _XtAddCallback(&(pd->mapping_callbacks),
- DispatchMappingNotify,
- (XtPointer)widget);
-
- if (widget->core.destroy_callbacks != NULL)
- _XtAddCallbackOnce( (InternalCallbackList *)
- &widget->core.destroy_callbacks,
- RemoveFromMappingCallbacks,
- (XtPointer)widget
- );
- else
- _XtAddCallback((InternalCallbackList *)
- &widget->core.destroy_callbacks,
- RemoveFromMappingCallbacks,
- (XtPointer)widget
- );
- }
- _XtBindActions(widget, (XtTM)&widget->core.tm);
- _XtRegisterGrabs(widget);
-}
-
-void _XtRemoveTranslations(
- Widget widget)
-{
- Cardinal i;
- TMSimpleStateTree stateTree;
- Boolean mappingNotifyInterest = False;
- XtTranslations xlations = widget->core.tm.translations;
-
- if (xlations == NULL)
- return;
-
- for (i = 0;
- i < xlations->numStateTrees;
- i++)
- {
- stateTree = (TMSimpleStateTree)xlations->stateTreeTbl[i];
- mappingNotifyInterest |= stateTree->mappingNotifyInterest;
- }
- if (mappingNotifyInterest)
- RemoveFromMappingCallbacks(widget, (XtPointer)widget, NULL);
-}
-
-static void _XtUninstallTranslations(
- Widget widget)
-{
- XtTranslations xlations = widget->core.tm.translations;
-
- _XtUnbindActions(widget,
- xlations,
- (TMBindData)widget->core.tm.proc_table);
- _XtRemoveTranslations(widget);
- widget->core.tm.translations = NULL;
- FreeContext((TMContext *)&widget->core.tm.current_state);
-}
-
-void _XtDestroyTMData(
- Widget widget)
-{
- TMComplexBindData cBindData;
-
- _XtUninstallTranslations(widget);
-
- if ((cBindData = (TMComplexBindData)widget->core.tm.proc_table)) {
- if (cBindData->isComplex) {
- ATranslations aXlations, nXlations;
-
- nXlations = (ATranslations) cBindData->accel_context;
- while (nXlations){
- aXlations = nXlations;
- nXlations = nXlations->next;
- XtFree((char *)aXlations);
- }
- }
- XtFree((char *)cBindData);
- }
-}
-
-/*** Public procedures ***/
-
-
-void XtUninstallTranslations(
- Widget widget)
-{
- EventMask oldMask;
- Widget hookobj;
- WIDGET_TO_APPCON(widget);
-
- LOCK_APP(app);
- if (! widget->core.tm.translations) {
- UNLOCK_APP(app);
- return;
- }
- oldMask = widget->core.tm.translations->eventMask;
- _XtUninstallTranslations(widget);
- if (XtIsRealized(widget) && oldMask)
- XSelectInput(XtDisplay(widget), XtWindow(widget),
- XtBuildEventMask(widget));
- hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget));
- if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) {
- XtChangeHookDataRec call_data;
-
- call_data.type = XtHuninstallTranslations;
- call_data.widget = widget;
- XtCallCallbackList(hookobj,
- ((HookObject)hookobj)->hooks.changehook_callbacks,
- (XtPointer)&call_data);
- }
- UNLOCK_APP(app);
-}
-
-XtTranslations _XtCreateXlations(
- TMStateTree *stateTrees,
- TMShortCard numStateTrees,
- XtTranslations first,
- XtTranslations second)
-{
- XtTranslations xlations;
- TMShortCard i;
-
- xlations = (XtTranslations)
- __XtMalloc(sizeof(TranslationData) +
- (numStateTrees-1) * sizeof(TMStateTree));
-#ifdef TRACE_TM
- LOCK_PROCESS;
- if (_XtGlobalTM.numTms == _XtGlobalTM.tmTblSize) {
- _XtGlobalTM.tmTblSize += 16;
- _XtGlobalTM.tmTbl = (XtTranslations *)
- XtRealloc((char *)_XtGlobalTM.tmTbl,
- _XtGlobalTM.tmTblSize * sizeof(XtTranslations));
- }
- _XtGlobalTM.tmTbl[_XtGlobalTM.numTms++] = xlations;
- UNLOCK_PROCESS;
-#endif /* TRACE_TM */
-
- xlations->composers[0] = first;
- xlations->composers[1] = second;
- xlations->hasBindings = False;
- xlations->operation = XtTableReplace;
-
- for (i = 0;i < numStateTrees; i++)
- {
- xlations->stateTreeTbl[i] = (TMStateTree) stateTrees[i];
- stateTrees[i]->simple.refCount++;
- }
- xlations->numStateTrees = numStateTrees;
- xlations->eventMask = 0;
- return xlations;
-}
-
-TMStateTree _XtParseTreeToStateTree(
- TMParseStateTree parseTree)
-{
- TMSimpleStateTree simpleTree;
- unsigned int tableSize;
-
- if (parseTree->numComplexBranchHeads) {
- TMComplexStateTree complexTree;
-
- complexTree = XtNew(TMComplexStateTreeRec);
- complexTree->isSimple = False;
- tableSize = parseTree->numComplexBranchHeads * sizeof(StatePtr);
- complexTree->complexBranchHeadTbl = (StatePtr *)
- __XtMalloc(tableSize);
- XtMemmove(complexTree->complexBranchHeadTbl,
- parseTree->complexBranchHeadTbl, tableSize);
- complexTree->numComplexBranchHeads =
- parseTree->numComplexBranchHeads;
- simpleTree = (TMSimpleStateTree)complexTree;
- }
- else {
- simpleTree = XtNew(TMSimpleStateTreeRec);
- simpleTree->isSimple = True;
- }
- simpleTree->isAccelerator = parseTree->isAccelerator;
- simpleTree->refCount = 0;
- simpleTree->mappingNotifyInterest = parseTree->mappingNotifyInterest;
-
- tableSize = parseTree->numBranchHeads * sizeof(TMBranchHeadRec);
- simpleTree->branchHeadTbl = (TMBranchHead)
- __XtMalloc(tableSize);
- XtMemmove(simpleTree->branchHeadTbl, parseTree->branchHeadTbl, tableSize);
- simpleTree->numBranchHeads = parseTree->numBranchHeads;
-
- tableSize = parseTree->numQuarks * sizeof(XrmQuark);
- simpleTree->quarkTbl = (XrmQuark *) __XtMalloc(tableSize);
- XtMemmove(simpleTree->quarkTbl, parseTree->quarkTbl, tableSize);
- simpleTree->numQuarks = parseTree->numQuarks;
-
- return (TMStateTree)simpleTree;
-}
-
-static void FreeActions(
- ActionPtr actions)
-{
- ActionPtr action;
- TMShortCard i;
- for (action = actions; action;) {
- ActionPtr nextAction = action->next;
- for (i = action->num_params; i;) {
- XtFree( action->params[--i] );
- }
- XtFree( (char*)action->params );
- XtFree((char*) action);
- action = nextAction;
- }
-}
-
-/*ARGSUSED*/
-static void AmbigActions(
- EventSeqPtr initialEvent,
- StatePtr *state,
- TMParseStateTree stateTree)
-{
- String params[3];
- Cardinal numParams = 0;
-
- params[numParams++] = _XtPrintEventSeq(initialEvent, NULL);
- params[numParams++] = _XtPrintActions((*state)->actions,
- stateTree->quarkTbl);
- XtWarningMsg (XtNtranslationError,"oldActions",XtCXtToolkitError,
- "Previous entry was: %s %s", params, &numParams);
- XtFree((char *)params[0]);
- XtFree((char *)params[1]);
- numParams = 0;
- params[numParams++] = _XtPrintActions(initialEvent->actions,
- stateTree->quarkTbl);
- XtWarningMsg (XtNtranslationError,"newActions",XtCXtToolkitError,
- "New actions are:%s", params, &numParams);
- XtFree((char *)params[0]);
- XtWarningMsg (XtNtranslationError,"ambiguousActions",
- XtCXtToolkitError,
- "Overriding earlier translation manager actions.",
- (String *)NULL, (Cardinal *)NULL);
-
- FreeActions((*state)->actions);
- (*state)->actions = NULL;
-}
-
-
-void _XtAddEventSeqToStateTree(
- EventSeqPtr eventSeq,
- TMParseStateTree stateTree)
-{
- StatePtr *state;
- EventSeqPtr initialEvent = eventSeq;
- TMBranchHead branchHead;
- TMShortCard idx, modIndex, typeIndex;
-
- if (eventSeq == NULL) return;
-
- /* note that all states in the event seq passed in start out null */
- /* we fill them in with the matching state as we traverse the list */
-
- /*
- * We need to free the parser data structures !!!
- */
-
- typeIndex = _XtGetTypeIndex(&eventSeq->event);
- modIndex = _XtGetModifierIndex(&eventSeq->event);
- idx = GetBranchHead(stateTree, typeIndex, modIndex, False);
- branchHead = &stateTree->branchHeadTbl[idx];
-
- /*
- * Need to check for pre-existing actions with same lhs |||
- */
-
- /*
- * Check for optimized case. Don't assume that the eventSeq has actions.
- */
- if (!eventSeq->next &&
- eventSeq->actions &&
- !eventSeq->actions->next &&
- !eventSeq->actions->num_params)
- {
- if (eventSeq->event.eventType == MappingNotify)
- stateTree->mappingNotifyInterest = True;
- branchHead->hasActions = True;
- branchHead->more = eventSeq->actions->idx;
- FreeActions(eventSeq->actions);
- eventSeq->actions = NULL;
- return;
- }
-
- branchHead->isSimple = False;
- if (!eventSeq->next)
- branchHead->hasActions = True;
- branchHead->more = GetComplexBranchIndex(stateTree, typeIndex, modIndex);
- state = &stateTree->complexBranchHeadTbl[TMBranchMore(branchHead)];
-
- for (;;) {
- *state = NewState(stateTree, typeIndex, modIndex);
-
- if (eventSeq->event.eventType == MappingNotify)
- stateTree->mappingNotifyInterest = True;
-
- /* *state now points at state record matching event */
- eventSeq->state = *state;
-
- if (eventSeq->actions != NULL) {
- if ((*state)->actions != NULL)
- AmbigActions(initialEvent, state, stateTree);
- (*state)->actions = eventSeq->actions;
-#ifdef TRACE_TM
- LOCK_PROCESS
- _XtGlobalTM.numComplexActions++;
- UNLOCK_PROCESS;
-#endif /* TRACE_TM */
- }
-
- if (((eventSeq = eventSeq->next) == NULL) || (eventSeq->state))
- break;
-
- state = &(*state)->nextLevel;
- typeIndex = _XtGetTypeIndex(&eventSeq->event);
- modIndex = _XtGetModifierIndex(&eventSeq->event);
- LOCK_PROCESS;
- if (!TMNewMatchSemantics()) {
- /*
- * force a potential empty entry into the branch head
- * table in order to emulate old matching behavior
- */
- (void) GetBranchHead(stateTree, typeIndex, modIndex, True);
- }
- UNLOCK_PROCESS;
- }
-
- if (eventSeq && eventSeq->state) {
- /* we've been here before... must be a cycle in the event seq. */
- branchHead->hasCycles = True;
- (*state)->nextLevel = eventSeq->state;
- eventSeq->state->isCycleStart = True;
- (*state)->isCycleEnd = TRUE;
- }
-}
-
-
-/*
- * Internal Converter for merging. Old and New must both be valid xlations
- */
-
-/*ARGSUSED*/
-Boolean _XtCvtMergeTranslations(
- Display *dpy,
- XrmValuePtr args,
- Cardinal *num_args,
- XrmValuePtr from,
- XrmValuePtr to,
- XtPointer *closure_ret)
-{
- XtTranslations first, second, xlations;
- TMStateTree *stateTrees, stackStateTrees[16];
- TMShortCard numStateTrees, i;
-
- if (*num_args != 0)
- XtWarningMsg("invalidParameters","mergeTranslations",XtCXtToolkitError,
- "MergeTM to TranslationTable needs no extra arguments",
- (String *)NULL, (Cardinal *)NULL);
-
- if (to->addr != NULL && to->size < sizeof(XtTranslations)) {
- to->size = sizeof(XtTranslations);
- return False;
- }
-
- first = ((TMConvertRec*)from->addr)->old;
- second = ((TMConvertRec*)from->addr)->new;
-
- numStateTrees = first->numStateTrees + second->numStateTrees;
-
- stateTrees = (TMStateTree *)
- XtStackAlloc(numStateTrees * sizeof(TMStateTree), stackStateTrees);
-
- for (i = 0; i < first->numStateTrees; i++)
- stateTrees[i] = first->stateTreeTbl[i];
- for (i = 0; i < second->numStateTrees; i++)
- stateTrees[i + first->numStateTrees] = second->stateTreeTbl[i];
-
- xlations = _XtCreateXlations(stateTrees, numStateTrees, first, second);
-
- if (to->addr != NULL) {
- *(XtTranslations*)to->addr = xlations;
- }
- else {
- static XtTranslations staticStateTable;
- staticStateTable = xlations;
- to->addr= (XPointer)&staticStateTable;
- to->size = sizeof(XtTranslations);
- }
-
- XtStackFree((XtPointer)stateTrees, (XtPointer)stackStateTrees);
- return True;
-}
-
-
-static XtTranslations MergeThem(
- Widget dest,
- XtTranslations first,
- XtTranslations second)
-{
- XtCacheRef cache_ref;
- static XrmQuark from_type = NULLQUARK, to_type;
- XrmValue from, to;
- TMConvertRec convert_rec;
- XtTranslations newTable;
-
- LOCK_PROCESS;
- if (from_type == NULLQUARK) {
- from_type = XrmPermStringToQuark(_XtRStateTablePair);
- to_type = XrmPermStringToQuark(XtRTranslationTable);
- }
- UNLOCK_PROCESS;
- from.addr = (XPointer)&convert_rec;
- from.size = sizeof(TMConvertRec);
- to.addr = (XPointer)&newTable;
- to.size = sizeof(XtTranslations);
- convert_rec.old = first;
- convert_rec.new = second;
-
- LOCK_PROCESS;
- if (! _XtConvert(dest, from_type, &from, to_type, &to, &cache_ref)) {
- UNLOCK_PROCESS;
- return NULL;
- }
- UNLOCK_PROCESS;
-
-#ifndef REFCNT_TRANSLATIONS
-
- if (cache_ref)
- XtAddCallback(dest, XtNdestroyCallback,
- XtCallbackReleaseCacheRef, (XtPointer)cache_ref);
-
-#endif
-
- return newTable;
-}
-
-/*
- * Unmerge will recursively traverse the xlation compose tree and
- * generate a new xlation that is the result of all instances of
- * xlations being removed. It currently doesn't differentiate between
- * the potential that an xlation will be both an accelerator and
- * normal. This is not supported by the spec anyway.
- */
-static XtTranslations UnmergeTranslations(
- Widget widget,
- XtTranslations xlations,
- XtTranslations unmergeXlations,
- TMShortCard currIndex,
- TMComplexBindProcs oldBindings,
- TMShortCard numOldBindings,
- TMComplexBindProcs newBindings,
- TMShortCard *numNewBindingsRtn)
-
-{
- XtTranslations first, second, result;
-
- if (!xlations || (xlations == unmergeXlations))
- return NULL;
-
- if (xlations->composers[0]) {
- first = UnmergeTranslations(widget, xlations->composers[0],
- unmergeXlations, currIndex,
- oldBindings, numOldBindings,
- newBindings, numNewBindingsRtn);
- }
- else
- first = NULL;
-
- if (xlations->composers[1]) {
- second = UnmergeTranslations(widget, xlations->composers[1],
- unmergeXlations,
- currIndex +
- xlations->composers[0]->numStateTrees,
- oldBindings, numOldBindings,
- newBindings, numNewBindingsRtn);
- }
- else
- second = NULL;
-
- if (first || second) {
- if (first && second) {
- if ((first != xlations->composers[0]) ||
- (second != xlations->composers[1]))
- result = MergeThem(widget, first, second);
- else result = xlations;
- }
- else {
- if (first)
- result = first;
- else
- result = second;
- }
- } else { /* only update for leaf nodes */
- if (numOldBindings) {
- Cardinal i;
- for (i = 0; i < xlations->numStateTrees; i++) {
- if (xlations->stateTreeTbl[i]->simple.isAccelerator)
- newBindings[*numNewBindingsRtn] =
- oldBindings[currIndex + i];
- (*numNewBindingsRtn)++;
- }
- }
- result = xlations;
- }
- return result;
-}
-
-typedef struct {
- XtTranslations xlations;
- TMComplexBindProcs bindings;
-}MergeBindRec, *MergeBind;
-
-static XtTranslations MergeTranslations(
- Widget widget,
- XtTranslations oldXlations,
- XtTranslations newXlations,
- _XtTranslateOp operation,
- Widget source,
- TMComplexBindProcs oldBindings,
- TMComplexBindProcs newBindings,
- TMShortCard *numNewRtn)
-{
- XtTranslations newTable = NULL, xlations;
- TMComplexBindProcs bindings;
- TMShortCard i, j;
- TMStateTree *treePtr;
- TMShortCard numNew = *numNewRtn;
- MergeBindRec bindPair[2];
-
- /* If the new translation has an accelerator context then pull it
- * off and pass it and the real xlations in to the caching merge
- * routine.
- */
- if (newXlations->hasBindings) {
- xlations = ((ATranslations) newXlations)->xlations;
- bindings = (TMComplexBindProcs)
- &((ATranslations) newXlations)->bindTbl[0];
- }
- else {
- xlations = newXlations;
- bindings = NULL;
- }
- switch(operation) {
- case XtTableReplace:
- newTable = bindPair[0].xlations = xlations;
- bindPair[0].bindings = bindings;
- bindPair[1].xlations = NULL;
- bindPair[1].bindings = NULL;
- break;
- case XtTableAugment:
- bindPair[0].xlations = oldXlations;
- bindPair[0].bindings = oldBindings;
- bindPair[1].xlations = xlations;
- bindPair[1].bindings = bindings;
- newTable = NULL;
- break;
- case XtTableOverride:
- bindPair[0].xlations = xlations;
- bindPair[0].bindings = bindings;
- bindPair[1].xlations = oldXlations;
- bindPair[1].bindings = oldBindings;
- newTable = NULL;
- break;
- }
- if (!newTable)
- newTable = MergeThem(widget, bindPair[0].xlations, bindPair[1].xlations);
-
- for (i = 0, numNew = 0; i < 2; i++) {
- if (bindPair[i].xlations)
- for (j = 0; j < bindPair[i].xlations->numStateTrees; j++, numNew++) {
- if (bindPair[i].xlations->stateTreeTbl[j]->simple.isAccelerator) {
- if (bindPair[i].bindings)
- newBindings[numNew] = bindPair[i].bindings[j];
- else {
- newBindings[numNew].widget = source;
- newBindings[numNew].aXlations =
- bindPair[i].xlations;
- }
- }
- }
- }
- *numNewRtn = numNew;
- treePtr = &newTable->stateTreeTbl[0];
- for (i = 0; i < newTable->numStateTrees; i++, treePtr++)
- (*treePtr)->simple.refCount++;
- return newTable;
-}
-
-static TMBindData MakeBindData(
- TMComplexBindProcs bindings,
- TMShortCard numBindings,
- TMBindData oldBindData)
-{
- TMLongCard bytes;
- TMShortCard i;
- Boolean isComplex;
- TMBindData bindData;
-
- if (numBindings == 0)
- return NULL;
- for (i = 0; i < numBindings; i++)
- if (bindings[i].widget)
- break;
- isComplex = (i < numBindings);
- if (isComplex)
- bytes = (sizeof(TMComplexBindDataRec) +
- ((numBindings - 1) *
- sizeof(TMComplexBindProcsRec)));
- else
- bytes = (sizeof(TMSimpleBindDataRec) +
- ((numBindings - 1) *
- sizeof(TMSimpleBindProcsRec)));
-
- bindData = (TMBindData) __XtCalloc(sizeof(char), bytes);
- bindData->simple.isComplex = isComplex;
- if (isComplex) {
- TMComplexBindData cBindData = (TMComplexBindData)bindData;
- /*
- * If there were any accelerator contexts in the old bindData
- * then propagate them to the new one.
- */
- if (oldBindData && oldBindData->simple.isComplex)
- cBindData->accel_context =
- ((TMComplexBindData) oldBindData)->accel_context;
- XtMemmove((char *)&cBindData->bindTbl[0], (char *)bindings,
- numBindings * sizeof(TMComplexBindProcsRec));
- }
- return bindData;
-}
-
-/*
- * This routine is the central clearinghouse for merging translations
- * into a widget. It takes care of preping the action bindings for
- * realize time and calling the converter or doing a straight merge if
- * the destination is empty.
- */
-static Boolean ComposeTranslations(
- Widget dest,
- _XtTranslateOp operation,
- Widget source,
- XtTranslations newXlations)
-{
- XtTranslations newTable, oldXlations;
- XtTranslations accNewXlations;
- EventMask oldMask = 0;
- TMBindData bindData;
- TMComplexBindProcs oldBindings = NULL;
- TMShortCard numOldBindings = 0, numNewBindings = 0, numBytes;
- TMComplexBindProcsRec stackBindings[16], *newBindings;
-
- /*
- * how should we be handling the refcount decrement for the
- * replaced translation table ???
- */
- if (!newXlations)
- {
- XtAppWarningMsg(XtWidgetToApplicationContext(dest),
- XtNtranslationError,"nullTable",XtCXtToolkitError,
- "table to (un)merge must not be null",
- (String *)NULL, (Cardinal *)NULL);
- return False;
- }
-
- accNewXlations = newXlations;
- newXlations = ((newXlations->hasBindings)
- ? ((ATranslations)newXlations)->xlations
- : newXlations);
-
- if (!(oldXlations = dest->core.tm.translations))
- operation = XtTableReplace;
-
- /*
- * try to avoid generation of duplicate state trees. If the source
- * isn't simple (1 state Tree) then it's too much hassle
- */
- if (((operation == XtTableAugment) ||
- (operation == XtTableOverride)) &&
- (newXlations->numStateTrees == 1)) {
- Cardinal i;
- for (i = 0; i < oldXlations->numStateTrees; i++)
- if (oldXlations->stateTreeTbl[i] ==
- newXlations->stateTreeTbl[0])
- break;
- if (i < oldXlations->numStateTrees) {
- if (operation == XtTableAugment) {
- /*
- * we don't need to do anything since it's already
- * there
- */
- return True;
- }
- else {/* operation == XtTableOverride */
- /*
- * We'll get rid of the duplicate trees throughout the
- * and leave it with a pruned translation table. This
- * will only work if the same table has been merged
- * into this table (or one of it's composers
- */
- _XtUnmergeTranslations(dest, newXlations);
- /*
- * reset oldXlations so we're back in sync
- */
- if (!(oldXlations = dest->core.tm.translations))
- operation = XtTableReplace;
- }
- }
- }
-
- bindData = (TMBindData) dest->core.tm.proc_table;
- if (bindData) {
- numOldBindings = (oldXlations ? oldXlations->numStateTrees : 0);
- if (bindData->simple.isComplex)
- oldBindings = &((TMComplexBindData)bindData)->bindTbl[0];
- else
- oldBindings = (TMComplexBindProcs)
- (&((TMSimpleBindData)bindData)->bindTbl[0]);
- }
-
- numBytes =(((oldXlations ? oldXlations->numStateTrees : 0)
- + newXlations->numStateTrees) * sizeof(TMComplexBindProcsRec));
- newBindings = (TMComplexBindProcs) XtStackAlloc(numBytes, stackBindings);
- XtBZero((char *)newBindings, numBytes);
-
- if (operation == XtTableUnmerge) {
- newTable = UnmergeTranslations(dest,
- oldXlations,
- newXlations,
- 0,
- oldBindings, numOldBindings,
- newBindings, &numNewBindings);
-#ifdef DEBUG
- /* check for no match for unmerge */
- if (newTable == oldXlations) {
- XtWarning("attempt to unmerge invalid table");
- XtStackFree((char *)newBindings, (char *)stackBindings);
- return(newTable != NULL);
- }
-#endif /* DEBUG */
- }
- else {
- newTable = MergeTranslations(dest,
- oldXlations,
- accNewXlations,
- operation,
- source,
- oldBindings,
- newBindings,
- &numNewBindings);
- }
- if (XtIsRealized(dest)) {
- oldMask = 0;
- if (oldXlations)
- oldMask = oldXlations->eventMask;
- _XtUninstallTranslations(dest);
- }
-
- dest->core.tm.proc_table =
- (XtActionProc *) MakeBindData(newBindings, numNewBindings, bindData);
-
- if (bindData) XtFree((char *)bindData);
-
- dest->core.tm.translations = newTable;
-
- if (XtIsRealized(dest)) {
- EventMask mask = 0;
- _XtInstallTranslations(dest);
- if (newTable)
- mask = newTable->eventMask;
- if (mask != oldMask)
- XSelectInput(XtDisplay(dest), XtWindow(dest),
- XtBuildEventMask(dest));
- }
- XtStackFree((XtPointer)newBindings, (XtPointer)stackBindings);
- return(newTable != NULL);
-}
-
-/*
- * If a GetValues is done on a translation resource that contains
- * accelerators we need to return the accelerator context in addition
- * to the pure translations. Since this means returning memory that
- * the client controlls but we still own, we will track the "headers"
- * that we return (via a linked list pointed to from the bindData) and
- * free it at destroy time.
- */
-XtTranslations _XtGetTranslationValue(
- Widget w)
-{
- XtTM tmRecPtr = (XtTM) &w->core.tm;
- ATranslations *aXlationsPtr;
- TMComplexBindData cBindData = (TMComplexBindData) tmRecPtr->proc_table;
- XtTranslations xlations = tmRecPtr->translations;
-
- if (!xlations || !cBindData || !cBindData->isComplex)
- return xlations;
-
- /* Walk the list looking to see if we already have generated a
- * header for the currently installed translations. If we have,
- * just return that header. Otherwise create a new header.
- */
- for (aXlationsPtr = (ATranslations *) &cBindData->accel_context;
- *aXlationsPtr && (*aXlationsPtr)->xlations != xlations;
- aXlationsPtr = &(*aXlationsPtr)->next)
- ;
- if (*aXlationsPtr)
- return (XtTranslations) *aXlationsPtr;
- else {
- /* create a new aXlations context */
- ATranslations aXlations;
- Cardinal numBindings = xlations->numStateTrees;
-
- (*aXlationsPtr) = aXlations = (ATranslations)
- __XtMalloc(sizeof(ATranslationData) +
- (numBindings - 1) * sizeof(TMComplexBindProcsRec));
-
- aXlations->hasBindings = True;
- aXlations->xlations = xlations;
- aXlations->next = NULL;
- XtMemmove((char *) &aXlations->bindTbl[0],
- (char *) &cBindData->bindTbl[0],
- numBindings * sizeof(TMComplexBindProcsRec));
- return (XtTranslations) aXlations;
- }
-}
-
-
-/*ARGSUSED*/
-static void RemoveStateTree(
- TMStateTree tree)
-{
-#ifdef REFCNT_TRANSLATIONS
- TMComplexStateTree stateTree = (TMComplexStateTree)tree;
-
- if (--stateTree->refCount == 0) {
- /*
- * should we free/refcount the match recs ?
- */
- if (!stateTree->isSimple) {
- StatePtr currState, nextState;
- TMShortCard i;
- for (i = 0; i < stateTree->numComplexBranchHeads; i++) {
- currState =
- nextState =
- stateTree->complexBranchHeadTbl[i];
- for (; nextState;){
- FreeActions(currState->actions);
- currState->actions = NULL;
- if (!currState->isCycleEnd)
- nextState = currState->nextLevel;
- else
- nextState = NULL;
- XtFree( (char*)currState );
- }
- }
- XtFree((char*)stateTree->complexBranchHeadTbl);
- }
- XtFree((char*)stateTree->branchHeadTbl);
- XtFree((char*)stateTree);
- }
-#endif /* REFCNT_TRANSLATIONS */
-}
-
-void _XtRemoveStateTreeByIndex(
- XtTranslations xlations,
- TMShortCard i)
-{
- TMStateTree *stateTrees = xlations->stateTreeTbl;
-
- RemoveStateTree(stateTrees[i]);
- xlations->numStateTrees--;
-
- for (; i < xlations->numStateTrees; i++)
- {
- stateTrees[i] = stateTrees[i+1];
- }
-}
-
-/* ARGSUSED */
-void _XtFreeTranslations(
- XtAppContext app,
- XrmValuePtr toVal,
- XtPointer closure,
- XrmValuePtr args,
- Cardinal *num_args)
-{
- XtTranslations xlations;
- int i;
-
- if (*num_args != 0)
- XtAppWarningMsg(app,
- "invalidParameters","freeTranslations",XtCXtToolkitError,
- "Freeing XtTranslations requires no extra arguments",
- (String *)NULL, (Cardinal *)NULL);
-
- xlations = *(XtTranslations*)toVal->addr;
- for (i = 0; i < (int)xlations->numStateTrees; i++)
- RemoveStateTree(xlations->stateTreeTbl[i]);
- XtFree((char *)xlations);
-}
-
-/* The spec is not clear on when actions specified in accelerators are bound;
- * Bind them at Realize the same as translations
- */
-void XtInstallAccelerators(
- Widget destination, Widget source)
-{
- XtTranslations aXlations;
- _XtTranslateOp op;
- String buf;
- WIDGET_TO_APPCON(destination);
-
- /*
- * test that it was parsed as an accelarator table. Even though
- * there doesn't need to be a distinction it makes life easier if
- * we honor the spec implication that aXlations is an accelerator
- */
- LOCK_APP(app);
- LOCK_PROCESS;
- if ((!XtIsWidget(source)) ||
- ((aXlations = source->core.accelerators) == NULL) ||
- (aXlations->stateTreeTbl[0]->simple.isAccelerator == False)) {
- UNLOCK_PROCESS;
- UNLOCK_APP(app);
- return;
- }
-
- aXlations = source->core.accelerators;
- op = aXlations->operation;
-
- if (ComposeTranslations(destination, op, source, aXlations) &&
- (XtClass(source)->core_class.display_accelerator != NULL)) {
-
- buf = _XtPrintXlations(destination, aXlations, source, False);
- (*(XtClass(source)->core_class.display_accelerator))(source,buf);
- XtFree(buf);
- }
- UNLOCK_PROCESS;
- UNLOCK_APP(app);
-}
-
-void XtInstallAllAccelerators(
- Widget destination,
- Widget source)
-{
- Cardinal i;
- CompositeWidget cw;
- WIDGET_TO_APPCON(destination);
-
- /* Recurse down normal children */
- LOCK_APP(app);
- LOCK_PROCESS;
- if (XtIsComposite(source)) {
- cw = (CompositeWidget) source;
- for (i = 0; i < cw->composite.num_children; i++) {
- XtInstallAllAccelerators(destination,cw->composite.children[i]);
- }
- }
-
- /* Recurse down popup children */
- if (XtIsWidget(source)) {
- for (i = 0; i < source->core.num_popups; i++) {
- XtInstallAllAccelerators(destination,source->core.popup_list[i]);
- }
- }
- /* Finally, apply procedure to this widget */
- XtInstallAccelerators(destination,source);
- UNLOCK_PROCESS;
- UNLOCK_APP(app);
-}
-
-#if 0 /* dead code */
-static _XtTranslateOp _XtGetTMOperation(
- XtTranslations xlations)
-{
- return ((xlations->hasBindings)
- ? ((ATranslations)xlations)->xlations->operation
- : xlations->operation);
-}
-#endif
-
-void XtAugmentTranslations(
- Widget widget,
- XtTranslations new)
-{
- Widget hookobj;
- WIDGET_TO_APPCON(widget);
-
- LOCK_APP(app);
- LOCK_PROCESS;
- (void)ComposeTranslations(widget, XtTableAugment, (Widget)NULL, new);
- hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget));
- if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) {
- XtChangeHookDataRec call_data;
-
- call_data.type = XtHaugmentTranslations;
- call_data.widget = widget;
- XtCallCallbackList(hookobj,
- ((HookObject)hookobj)->hooks.changehook_callbacks,
- (XtPointer)&call_data);
- }
- UNLOCK_PROCESS;
- UNLOCK_APP(app);
-}
-
-void XtOverrideTranslations(
- Widget widget,
- XtTranslations new)
-{
- Widget hookobj;
- WIDGET_TO_APPCON(widget);
-
- LOCK_APP(app);
- LOCK_PROCESS;
- (void) ComposeTranslations(widget, XtTableOverride, (Widget)NULL, new);
- hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget));
- if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) {
- XtChangeHookDataRec call_data;
-
- call_data.type = XtHoverrideTranslations;
- call_data.widget = widget;
- XtCallCallbackList(hookobj,
- ((HookObject)hookobj)->hooks.changehook_callbacks,
- (XtPointer)&call_data);
- }
- UNLOCK_PROCESS;
- UNLOCK_APP(app);
-}
-
-void _XtMergeTranslations(
- Widget widget,
- XtTranslations newXlations,
- _XtTranslateOp op)
-{
- if (!newXlations){
- if (!widget->core.tm.translations)
- return;
- else {
- newXlations = widget->core.tm.translations;
- widget->core.tm.translations = NULL;
- }
- }
- (void) ComposeTranslations(widget,
- op,
- (Widget)NULL,
- newXlations);
-}
-
-void _XtUnmergeTranslations(
- Widget widget,
- XtTranslations xlations)
-{
- ComposeTranslations(widget, XtTableUnmerge, (Widget)NULL, xlations);
-}
+/***********************************************************
+Copyright (c) 1993, Oracle and/or its affiliates. All rights reserved.
+
+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 (including the next
+paragraph) 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.
+
+Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+******************************************************************/
+
+/*
+
+Copyright 1987, 1988, 1994, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+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
+OPEN GROUP 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.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+
+/* TMstate.c -- maintains the state table of actions for the translation
+ * manager.
+ */
+/*LINTLIBRARY*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "IntrinsicI.h"
+
+#ifndef TM_NO_MATCH
+#define TM_NO_MATCH (-2)
+#endif /* TM_NO_MATCH */
+
+/* forward definitions */
+static StatePtr NewState(TMParseStateTree, TMShortCard, TMShortCard);
+
+
+static String XtNtranslationError = "translationError";
+
+#ifndef __EMX__
+TMGlobalRec _XtGlobalTM; /* initialized to zero K&R */
+#else
+TMGlobalRec _XtGlobalTM = {0};
+#endif
+
+#define MatchIncomingEvent(tmEvent, typeMatch, modMatch) \
+ (typeMatch->eventType == tmEvent->event.eventType && \
+ (typeMatch->matchEvent != NULL) && \
+ (*typeMatch->matchEvent)(typeMatch, modMatch, tmEvent))
+
+
+#define NumStateTrees(xlations) \
+ ((translateData->isSimple) ? 1 : (TMComplexXlations(xlations))->numTrees)
+
+static TMShortCard GetBranchHead(
+ TMParseStateTree parseTree,
+ TMShortCard typeIndex,
+ TMShortCard modIndex,
+ Boolean isDummy)
+{
+#define TM_BRANCH_HEAD_TBL_ALLOC 8
+#define TM_BRANCH_HEAD_TBL_REALLOC 8
+
+ TMBranchHead branchHead = parseTree->branchHeadTbl;
+ TMShortCard newSize, i;
+
+ /*
+ * dummy is used as a place holder for later matching in old-style
+ * matching behavior. If there's already an entry we don't need
+ * another dummy.
+ */
+ if (isDummy) {
+ for (i = 0; i < parseTree->numBranchHeads; i++, branchHead++) {
+ if ((branchHead->typeIndex == typeIndex) &&
+ (branchHead->modIndex == modIndex))
+ return i;
+ }
+ }
+ if (parseTree->numBranchHeads == parseTree->branchHeadTblSize)
+ {
+ if (parseTree->branchHeadTblSize == 0)
+ parseTree->branchHeadTblSize += TM_BRANCH_HEAD_TBL_ALLOC;
+ else
+ parseTree->branchHeadTblSize +=
+ TM_BRANCH_HEAD_TBL_REALLOC;
+ newSize = (parseTree->branchHeadTblSize * sizeof(TMBranchHeadRec));
+ if (parseTree->isStackBranchHeads) {
+ TMBranchHead oldBranchHeadTbl = parseTree->branchHeadTbl;
+ parseTree->branchHeadTbl = (TMBranchHead) __XtMalloc(newSize);
+ XtMemmove(parseTree->branchHeadTbl, oldBranchHeadTbl, newSize);
+ parseTree->isStackBranchHeads = False;
+ }
+ else {
+ parseTree->branchHeadTbl = (TMBranchHead)
+ XtRealloc((char *)parseTree->branchHeadTbl,
+ (parseTree->branchHeadTblSize *
+ sizeof(TMBranchHeadRec)));
+ }
+ }
+#ifdef TRACE_TM
+ LOCK_PROCESS;
+ _XtGlobalTM.numBranchHeads++;
+ UNLOCK_PROCESS;
+#endif /* TRACE_TM */
+ branchHead =
+ &parseTree->branchHeadTbl[parseTree->numBranchHeads++];
+ branchHead->typeIndex = typeIndex;
+ branchHead->modIndex = modIndex;
+ branchHead->more = 0;
+ branchHead->isSimple = True;
+ branchHead->hasActions = False;
+ branchHead->hasCycles = False;
+ return parseTree->numBranchHeads-1;
+}
+
+TMShortCard _XtGetQuarkIndex(
+ TMParseStateTree parseTree,
+ XrmQuark quark)
+{
+#define TM_QUARK_TBL_ALLOC 16
+#define TM_QUARK_TBL_REALLOC 16
+ TMShortCard i = parseTree->numQuarks;
+
+ for (i=0; i < parseTree->numQuarks; i++)
+ if (parseTree->quarkTbl[i] == quark)
+ break;
+
+ if (i == parseTree->numQuarks)
+ {
+ if (parseTree->numQuarks == parseTree->quarkTblSize)
+ {
+ TMShortCard newSize;
+
+ if (parseTree->quarkTblSize == 0)
+ parseTree->quarkTblSize += TM_QUARK_TBL_ALLOC;
+ else
+ parseTree->quarkTblSize += TM_QUARK_TBL_REALLOC;
+ newSize = (parseTree->quarkTblSize * sizeof(XrmQuark));
+
+ if (parseTree->isStackQuarks) {
+ XrmQuark *oldquarkTbl = parseTree->quarkTbl;
+ parseTree->quarkTbl = (XrmQuark *) __XtMalloc(newSize);
+ XtMemmove(parseTree->quarkTbl, oldquarkTbl, newSize);
+ parseTree->isStackQuarks = False;
+ }
+ else {
+ parseTree->quarkTbl = (XrmQuark *)
+ XtRealloc((char *)parseTree->quarkTbl,
+ (parseTree->quarkTblSize *
+ sizeof(XrmQuark)));
+ }
+ }
+ parseTree->quarkTbl[parseTree->numQuarks++] = quark;
+ }
+ return i;
+}
+
+/*
+ * Get an entry from the parseTrees complex branchHead tbl. If there's none
+ * there then allocate one
+ */
+/*ARGSUSED*/
+static TMShortCard GetComplexBranchIndex(
+ TMParseStateTree parseTree,
+ TMShortCard typeIndex,
+ TMShortCard modIndex)
+{
+#define TM_COMPLEXBRANCH_HEAD_TBL_ALLOC 8
+#define TM_COMPLEXBRANCH_HEAD_TBL_REALLOC 4
+
+ if (parseTree->numComplexBranchHeads == parseTree->complexBranchHeadTblSize) {
+ TMShortCard newSize;
+
+ if (parseTree->complexBranchHeadTblSize == 0)
+ parseTree->complexBranchHeadTblSize += TM_COMPLEXBRANCH_HEAD_TBL_ALLOC;
+ else
+ parseTree->complexBranchHeadTblSize += TM_COMPLEXBRANCH_HEAD_TBL_REALLOC;
+
+ newSize = (parseTree->complexBranchHeadTblSize * sizeof(StatePtr));
+
+ if (parseTree->isStackComplexBranchHeads) {
+ StatePtr *oldcomplexBranchHeadTbl
+ = parseTree->complexBranchHeadTbl;
+ parseTree->complexBranchHeadTbl = (StatePtr *) __XtMalloc(newSize);
+ XtMemmove(parseTree->complexBranchHeadTbl,
+ oldcomplexBranchHeadTbl, newSize);
+ parseTree->isStackComplexBranchHeads = False;
+ }
+ else {
+ parseTree->complexBranchHeadTbl = (StatePtr *)
+ XtRealloc((char *)parseTree->complexBranchHeadTbl,
+ (parseTree->complexBranchHeadTblSize *
+ sizeof(StatePtr)));
+ }
+ }
+ parseTree->complexBranchHeadTbl[parseTree->numComplexBranchHeads++] = NULL;
+ return parseTree->numComplexBranchHeads-1;
+}
+
+TMShortCard _XtGetTypeIndex(
+ Event *event)
+{
+ TMShortCard i, j = TM_TYPE_SEGMENT_SIZE;
+ TMShortCard typeIndex = 0;
+ TMTypeMatch typeMatch;
+ TMTypeMatch segment = NULL;
+
+ LOCK_PROCESS;
+ for (i = 0; i < _XtGlobalTM.numTypeMatchSegments; i++) {
+ segment = _XtGlobalTM.typeMatchSegmentTbl[i];
+ for (j = 0;
+ typeIndex < _XtGlobalTM.numTypeMatches && j < TM_TYPE_SEGMENT_SIZE;
+ j++, typeIndex++)
+ {
+ typeMatch = &(segment[j]);
+ if (event->eventType == typeMatch->eventType &&
+ event->eventCode == typeMatch->eventCode &&
+ event->eventCodeMask == typeMatch->eventCodeMask &&
+ event->matchEvent == typeMatch->matchEvent) {
+ UNLOCK_PROCESS;
+ return typeIndex;
+ }
+ }
+ }
+
+ if (j == TM_TYPE_SEGMENT_SIZE) {
+ if (_XtGlobalTM.numTypeMatchSegments == _XtGlobalTM.typeMatchSegmentTblSize) {
+ _XtGlobalTM.typeMatchSegmentTblSize += 4;
+ _XtGlobalTM.typeMatchSegmentTbl = (TMTypeMatch *)
+ XtRealloc((char *)_XtGlobalTM.typeMatchSegmentTbl,
+ (_XtGlobalTM.typeMatchSegmentTblSize * sizeof(TMTypeMatch)));
+ }
+ _XtGlobalTM.typeMatchSegmentTbl[_XtGlobalTM.numTypeMatchSegments++] =
+ segment = (TMTypeMatch)
+ __XtMalloc(TM_TYPE_SEGMENT_SIZE * sizeof(TMTypeMatchRec));
+ j = 0;
+ }
+ typeMatch = &segment[j];
+ typeMatch->eventType = event->eventType;
+ typeMatch->eventCode = event->eventCode;
+ typeMatch->eventCodeMask = event->eventCodeMask;
+ typeMatch->matchEvent = event->matchEvent;
+ _XtGlobalTM.numTypeMatches++;
+ UNLOCK_PROCESS;
+ return typeIndex;
+}
+
+static Boolean CompareLateModifiers(
+ LateBindingsPtr lateBind1P,
+ LateBindingsPtr lateBind2P)
+{
+ LateBindingsPtr late1P = lateBind1P;
+ LateBindingsPtr late2P = lateBind2P;
+
+ if (late1P != NULL || late2P != NULL) {
+ int i = 0;
+ int j = 0;
+ if (late1P != NULL)
+ for (; late1P->keysym != NoSymbol; i++) late1P++;
+ if (late2P != NULL)
+ for (; late2P->keysym != NoSymbol; j++) late2P++;
+ if (i != j) return FALSE;
+ late1P--;
+ while (late1P >= lateBind1P) {
+ Boolean last = True;
+ for (late2P = lateBind2P + i - 1;
+ late2P >= lateBind2P;
+ late2P--) {
+ if (late1P->keysym == late2P->keysym
+ && late1P->knot == late2P->knot) {
+ j--;
+ if (last) i--;
+ break;
+ }
+ last = False;
+ }
+ late1P--;
+ }
+ if (j != 0) return FALSE;
+ }
+ return TRUE;
+}
+
+TMShortCard _XtGetModifierIndex(
+ Event *event)
+{
+ TMShortCard i, j = TM_MOD_SEGMENT_SIZE;
+ TMShortCard modIndex = 0;
+ TMModifierMatch modMatch;
+ TMModifierMatch segment = NULL;
+
+ LOCK_PROCESS;
+ for (i = 0; i < _XtGlobalTM.numModMatchSegments; i++) {
+ segment = _XtGlobalTM.modMatchSegmentTbl[i];
+ for (j = 0;
+ modIndex < _XtGlobalTM.numModMatches && j < TM_MOD_SEGMENT_SIZE;
+ j++, modIndex++) {
+ modMatch = &(segment[j]);
+ if (event->modifiers == modMatch->modifiers &&
+ event->modifierMask == modMatch->modifierMask &&
+ event->standard == modMatch->standard &&
+ ((!event->lateModifiers && !modMatch->lateModifiers) ||
+ CompareLateModifiers(event->lateModifiers,
+ modMatch->lateModifiers))) {
+ /*
+ * if we found a match then we can free the parser's
+ * late modifiers. If there isn't a match we use the
+ * parser's copy
+ */
+ if (event->lateModifiers &&
+ --event->lateModifiers->ref_count == 0) {
+ XtFree((char *)event->lateModifiers);
+ event->lateModifiers = NULL;
+ }
+ UNLOCK_PROCESS;
+ return modIndex;
+ }
+ }
+ }
+
+ if (j == TM_MOD_SEGMENT_SIZE) {
+ if (_XtGlobalTM.numModMatchSegments == _XtGlobalTM.modMatchSegmentTblSize) {
+ _XtGlobalTM.modMatchSegmentTblSize += 4;
+ _XtGlobalTM.modMatchSegmentTbl = (TMModifierMatch *)
+ XtRealloc((char *)_XtGlobalTM.modMatchSegmentTbl,
+ (_XtGlobalTM.modMatchSegmentTblSize * sizeof(TMModifierMatch)));
+ }
+ _XtGlobalTM.modMatchSegmentTbl[_XtGlobalTM.numModMatchSegments++] =
+ segment = (TMModifierMatch)
+ __XtMalloc(TM_MOD_SEGMENT_SIZE * sizeof(TMModifierMatchRec));
+ j = 0;
+ }
+ modMatch = &segment[j];
+ modMatch->modifiers = event->modifiers;;
+ modMatch->modifierMask = event->modifierMask;
+ modMatch->standard = event->standard;
+ /*
+ * We use the parser's copy of the late binding array
+ */
+#ifdef TRACE_TM
+ if (event->lateModifiers)
+ _XtGlobalTM.numLateBindings++;
+#endif /* TRACE_TM */
+ modMatch->lateModifiers = event->lateModifiers;
+ _XtGlobalTM.numModMatches++;
+ UNLOCK_PROCESS;
+ return modIndex;
+}
+
+
+/*
+ * This is called from the SimpleStateHandler to match a stateTree
+ * entry to the event coming in
+ */
+static int MatchBranchHead(
+ TMSimpleStateTree stateTree,
+ int startIndex,
+ TMEventPtr event)
+{
+ TMBranchHead branchHead = &stateTree->branchHeadTbl[startIndex];
+ int i;
+
+ LOCK_PROCESS;
+ for (i = startIndex;
+ i < (int)stateTree->numBranchHeads;
+ i++, branchHead++)
+ {
+ TMTypeMatch typeMatch;
+ TMModifierMatch modMatch;
+
+ typeMatch = TMGetTypeMatch(branchHead->typeIndex);
+ modMatch = TMGetModifierMatch(branchHead->modIndex);
+
+ if (MatchIncomingEvent(event, typeMatch, modMatch)) {
+ UNLOCK_PROCESS;
+ return i;
+ }
+ }
+ UNLOCK_PROCESS;
+ return (TM_NO_MATCH);
+}
+
+Boolean _XtRegularMatch(
+ TMTypeMatch typeMatch,
+ TMModifierMatch modMatch,
+ TMEventPtr eventSeq)
+{
+ Modifiers computed =0;
+ Modifiers computedMask =0;
+ Boolean resolved = TRUE;
+ if (typeMatch->eventCode != (eventSeq->event.eventCode &
+ typeMatch->eventCodeMask)) return FALSE;
+ if (modMatch->lateModifiers != NULL)
+ resolved = _XtComputeLateBindings(eventSeq->xev->xany.display,
+ modMatch->lateModifiers,
+ &computed, &computedMask);
+ if (!resolved) return FALSE;
+ computed |= modMatch->modifiers;
+ computedMask |= modMatch->modifierMask;
+
+ return ( (computed & computedMask) ==
+ (eventSeq->event.modifiers & computedMask));
+}
+
+/*ARGSUSED*/
+Boolean _XtMatchAtom(
+ TMTypeMatch typeMatch,
+ TMModifierMatch modMatch,
+ TMEventPtr eventSeq)
+{
+ Atom atom;
+
+ atom = XInternAtom(eventSeq->xev->xany.display,
+ XrmQuarkToString(typeMatch->eventCode),
+ False);
+ return (atom == eventSeq->event.eventCode);
+}
+
+#define IsOn(vec,idx) ((vec)[(idx)>>3] & (1 << ((idx) & 7)))
+
+/*
+ * there are certain cases where you want to ignore the event and stay
+ * in the same state.
+ */
+static Boolean Ignore(
+ TMEventPtr event)
+{
+ Display *dpy;
+ XtPerDisplay pd;
+
+ if (event->event.eventType == MotionNotify)
+ return TRUE;
+ if (!(event->event.eventType == KeyPress ||
+ event->event.eventType == KeyRelease))
+ return FALSE;
+ dpy = event->xev->xany.display;
+ pd = _XtGetPerDisplay(dpy);
+ _InitializeKeysymTables(dpy, pd);
+ return IsOn(pd->isModifier, event->event.eventCode) ? TRUE : FALSE;
+}
+
+
+static void XEventToTMEvent(
+ XEvent *event,
+ TMEventPtr tmEvent)
+{
+ tmEvent->xev = event;
+ tmEvent->event.eventCodeMask = 0;
+ tmEvent->event.modifierMask = 0;
+ tmEvent->event.eventType = event->type;
+ tmEvent->event.lateModifiers = NULL;
+ tmEvent->event.matchEvent = NULL;
+ tmEvent->event.standard = FALSE;
+
+ switch (event->type) {
+
+ case KeyPress:
+ case KeyRelease:
+ tmEvent->event.eventCode = event->xkey.keycode;
+ tmEvent->event.modifiers = event->xkey.state;
+ break;
+
+ case ButtonPress:
+ case ButtonRelease:
+ tmEvent->event.eventCode = event->xbutton.button;
+ tmEvent->event.modifiers = event->xbutton.state;
+ break;
+
+ case MotionNotify:
+ tmEvent->event.eventCode = event->xmotion.is_hint;
+ tmEvent->event.modifiers = event->xmotion.state;
+ break;
+
+ case EnterNotify:
+ case LeaveNotify:
+ tmEvent->event.eventCode = event->xcrossing.mode;
+ tmEvent->event.modifiers = event->xcrossing.state;
+ break;
+
+ case PropertyNotify:
+ tmEvent->event.eventCode = event->xproperty.atom;
+ tmEvent->event.modifiers = 0;
+ break;
+
+ case SelectionClear:
+ tmEvent->event.eventCode = event->xselectionclear.selection;
+ tmEvent->event.modifiers = 0;
+ break;
+
+ case SelectionRequest:
+ tmEvent->event.eventCode = event->xselectionrequest.selection;
+ tmEvent->event.modifiers = 0;
+ break;
+
+ case SelectionNotify:
+ tmEvent->event.eventCode = event->xselection.selection;
+ tmEvent->event.modifiers = 0;
+ break;
+
+ case ClientMessage:
+ tmEvent->event.eventCode = event->xclient.message_type;
+ tmEvent->event.modifiers = 0;
+ break;
+
+ case MappingNotify:
+ tmEvent->event.eventCode = event->xmapping.request;
+ tmEvent->event.modifiers = 0;
+ break;
+
+ case FocusIn:
+ case FocusOut:
+ tmEvent->event.eventCode = event->xfocus.mode;
+ tmEvent->event.modifiers = 0;
+ break;
+
+ default:
+ tmEvent->event.eventCode = 0;
+ tmEvent->event.modifiers = 0;
+ break;
+ }
+}
+
+
+static unsigned long GetTime(
+ XtTM tm,
+ XEvent *event)
+{
+ switch (event->type) {
+
+ case KeyPress:
+ case KeyRelease:
+ return event->xkey.time;
+
+ case ButtonPress:
+ case ButtonRelease:
+ return event->xbutton.time;
+
+ default:
+ return tm->lastEventTime;
+
+ }
+
+}
+
+static void HandleActions(
+ Widget w,
+ XEvent *event,
+ TMSimpleStateTree stateTree,
+ Widget accelWidget,
+ XtActionProc *procs,
+ ActionRec *actions)
+{
+ ActionHook actionHookList;
+ Widget bindWidget;
+
+ bindWidget = accelWidget ? accelWidget : w;
+ if (accelWidget && !XtIsSensitive(accelWidget) &&
+ (event->type == KeyPress || event->type == KeyRelease ||
+ event->type == ButtonPress || event->type == ButtonRelease ||
+ event->type == MotionNotify || event->type == EnterNotify ||
+ event->type == LeaveNotify || event->type == FocusIn ||
+ event->type == FocusOut))
+ return;
+
+ actionHookList = XtWidgetToApplicationContext(w)->action_hook_list;
+
+ while (actions != NULL) {
+ /* perform any actions */
+ if (procs[actions->idx] != NULL) {
+ if (actionHookList) {
+ ActionHook hook;
+ ActionHook next_hook;
+ String procName =
+ XrmQuarkToString(stateTree->quarkTbl[actions->idx] );
+
+ for (hook = actionHookList; hook != NULL; ) {
+ /*
+ * Need to cache hook->next because the following action
+ * proc may free hook via XtRemoveActionHook making
+ * hook->next invalid upon return from the action proc.
+ */
+ next_hook = hook->next;
+ (*hook->proc)(bindWidget,
+ hook->closure,
+ procName,
+ event,
+ actions->params,
+ &actions->num_params
+ );
+ hook = next_hook;
+ }
+ }
+ (*(procs[actions->idx]))
+ (bindWidget, event,
+ actions->params, &actions->num_params );
+ }
+ actions = actions->next;
+ }
+}
+
+typedef struct {
+ unsigned int isCycleStart:1;
+ unsigned int isCycleEnd:1;
+ TMShortCard typeIndex;
+ TMShortCard modIndex;
+}MatchPairRec, *MatchPair;
+
+typedef struct TMContextRec{
+ TMShortCard numMatches;
+ TMShortCard maxMatches;
+ MatchPair matches;
+}TMContextRec, *TMContext;
+
+static TMContextRec contextCache[2];
+
+#define GetContextPtr(tm) ((TMContext *)&(tm->current_state))
+
+#define TM_CONTEXT_MATCHES_ALLOC 4
+#define TM_CONTEXT_MATCHES_REALLOC 2
+
+static void PushContext(
+ TMContext *contextPtr,
+ StatePtr newState)
+{
+ TMContext context = *contextPtr;
+
+ LOCK_PROCESS;
+ if (context == NULL)
+ {
+ if (contextCache[0].numMatches == 0)
+ context = &contextCache[0];
+ else if (contextCache[1].numMatches == 0)
+ context = &contextCache[1];
+ if (!context)
+ {
+ context = XtNew(TMContextRec);
+ context->matches = NULL;
+ context->numMatches =
+ context->maxMatches = 0;
+ }
+ }
+ if (context->numMatches &&
+ context->matches[context->numMatches-1].isCycleEnd)
+ {
+ TMShortCard i;
+ for (i = 0;
+ i < context->numMatches &&
+ !(context->matches[i].isCycleStart);
+ i++){};
+ if (i < context->numMatches)
+ context->numMatches = i+1;
+#ifdef DEBUG
+ else
+ XtWarning("pushing cycle end with no cycle start");
+#endif /* DEBUG */
+ }
+ else
+ {
+ if (context->numMatches == context->maxMatches)
+ {
+ if (context->maxMatches == 0)
+ context->maxMatches += TM_CONTEXT_MATCHES_ALLOC;
+ else
+ context->maxMatches += TM_CONTEXT_MATCHES_REALLOC;
+ context->matches = (MatchPairRec *)
+ XtRealloc((char *)context->matches,
+ context->maxMatches * sizeof(MatchPairRec));
+ }
+ context->matches[context->numMatches].isCycleStart = newState->isCycleStart;
+ context->matches[context->numMatches].isCycleEnd = newState->isCycleEnd;
+ context->matches[context->numMatches].typeIndex = newState->typeIndex;
+ context->matches[context->numMatches++].modIndex = newState->modIndex;
+ *contextPtr = context;
+ }
+ UNLOCK_PROCESS;
+}
+
+static void FreeContext(
+ TMContext *contextPtr)
+{
+ TMContext context = NULL;
+
+ LOCK_PROCESS;
+
+ if (&contextCache[0] == *contextPtr)
+ context = &contextCache[0];
+ else if (&contextCache[1] == *contextPtr)
+ context = &contextCache[1];
+
+ if (context)
+ context->numMatches = 0;
+ else if (*contextPtr)
+ {
+ if ((*contextPtr)->matches)
+ XtFree ((char *) ((*contextPtr)->matches));
+ XtFree((char *)*contextPtr);
+ }
+
+ *contextPtr = NULL;
+ UNLOCK_PROCESS;
+}
+
+static int MatchExact(
+ TMSimpleStateTree stateTree,
+ int startIndex,
+ TMShortCard typeIndex,
+ TMShortCard modIndex)
+{
+ TMBranchHead branchHead = &(stateTree->branchHeadTbl[startIndex]);
+ int i;
+
+ for (i = startIndex;
+ i < (int)stateTree->numBranchHeads;
+ i++, branchHead++)
+ {
+ if ((branchHead->typeIndex == typeIndex) &&
+ (branchHead->modIndex == modIndex))
+ return i;
+ }
+ return (TM_NO_MATCH);
+}
+
+
+
+static void HandleSimpleState(
+ Widget w,
+ XtTM tmRecPtr,
+ TMEventRec *curEventPtr)
+{
+ XtTranslations xlations = tmRecPtr->translations;
+ TMSimpleStateTree stateTree;
+ TMContext *contextPtr = GetContextPtr(tmRecPtr);
+ TMShortCard i;
+ ActionRec *actions = NULL;
+ Boolean matchExact = False;
+ Boolean match = False;
+ StatePtr complexMatchState = NULL;
+ int currIndex;
+ TMShortCard typeIndex = 0, modIndex = 0;
+ int matchTreeIndex = TM_NO_MATCH;
+
+ LOCK_PROCESS;
+ stateTree = (TMSimpleStateTree)xlations->stateTreeTbl[0];
+
+ for (i = 0;
+ ((!match || !complexMatchState) && (i < xlations->numStateTrees));
+ i++){
+ stateTree = (TMSimpleStateTree)xlations->stateTreeTbl[i];
+ currIndex = -1;
+ /*
+ * don't process this tree if we're only looking for a
+ * complexMatchState and there are no complex states
+ */
+ while (!(match && stateTree->isSimple) &&
+ ((!match || !complexMatchState) && (currIndex != TM_NO_MATCH))) {
+ currIndex++;
+ if (matchExact)
+ currIndex = MatchExact(stateTree,currIndex,typeIndex,modIndex);
+ else
+ currIndex = MatchBranchHead(stateTree,currIndex,curEventPtr);
+ if (currIndex != TM_NO_MATCH) {
+ TMBranchHead branchHead;
+ StatePtr currState;
+
+ branchHead = &stateTree->branchHeadTbl[currIndex];
+ if (branchHead->isSimple)
+ currState = NULL;
+ else
+ currState = ((TMComplexStateTree)stateTree)
+ ->complexBranchHeadTbl[TMBranchMore(branchHead)];
+
+ /*
+ * first check for a complete match
+ */
+ if (!match) {
+ if (branchHead->hasActions) {
+ if (branchHead->isSimple) {
+ static ActionRec dummyAction;
+
+ dummyAction.idx = TMBranchMore(branchHead);
+ actions = &dummyAction;
+ }
+ else
+ actions = currState->actions;
+ tmRecPtr->lastEventTime =
+ GetTime(tmRecPtr, curEventPtr->xev);
+ FreeContext((TMContext
+ *)&tmRecPtr->current_state);
+ match = True;
+ matchTreeIndex = i;
+ }
+ /*
+ * if it doesn't have actions and
+ * it's bc mode then it's a potential match node that is
+ * used to match later sequences.
+ */
+ if (!TMNewMatchSemantics() && !matchExact) {
+ matchExact = True;
+ typeIndex = branchHead->typeIndex;
+ modIndex = branchHead->modIndex;
+ }
+ }
+ /*
+ * check for it being an event sequence which can be
+ * a future match
+ */
+ if (!branchHead->isSimple &&
+ !branchHead->hasActions &&
+ !complexMatchState)
+ complexMatchState = currState;
+ }
+ }
+ }
+ if (match)
+ {
+ TMBindData bindData = (TMBindData) tmRecPtr->proc_table;
+ XtActionProc *procs;
+ Widget accelWidget;
+
+ if (bindData->simple.isComplex) {
+ TMComplexBindProcs bindProcs =
+ TMGetComplexBindEntry(bindData, matchTreeIndex);
+ procs = bindProcs->procs;
+ accelWidget = bindProcs->widget;
+ }
+ else {
+ TMSimpleBindProcs bindProcs =
+ TMGetSimpleBindEntry(bindData, matchTreeIndex);
+ procs = bindProcs->procs;
+ accelWidget = NULL;
+ }
+ HandleActions
+ (w,
+ curEventPtr->xev,
+ (TMSimpleStateTree)xlations->stateTreeTbl[matchTreeIndex],
+ accelWidget,
+ procs,
+ actions);
+ }
+ if (complexMatchState)
+ PushContext(contextPtr, complexMatchState);
+ UNLOCK_PROCESS;
+}
+
+static int MatchComplexBranch(
+ TMComplexStateTree stateTree,
+ int startIndex,
+ TMContext context,
+ StatePtr *leafStateRtn)
+{
+ TMShortCard i;
+
+ LOCK_PROCESS;
+ for (i = startIndex; i < stateTree->numComplexBranchHeads; i++)
+ {
+ StatePtr candState;
+ TMShortCard numMatches = context->numMatches;
+ MatchPair statMatch = context->matches;
+
+ for (candState = stateTree->complexBranchHeadTbl[i];
+ numMatches && candState;
+ numMatches--, statMatch++, candState = candState->nextLevel)
+ {
+ if ((statMatch->typeIndex != candState->typeIndex) ||
+ (statMatch->modIndex != candState->modIndex))
+ break;
+ }
+ if (numMatches == 0) {
+ *leafStateRtn = candState;
+ UNLOCK_PROCESS;
+ return i;
+ }
+ }
+ *leafStateRtn = NULL;
+ UNLOCK_PROCESS;
+ return (TM_NO_MATCH);
+}
+
+static StatePtr TryCurrentTree(
+ TMComplexStateTree *stateTreePtr,
+ XtTM tmRecPtr,
+ TMEventRec *curEventPtr)
+{
+ StatePtr candState = NULL, matchState = NULL;
+ TMContext *contextPtr = GetContextPtr(tmRecPtr);
+ TMTypeMatch typeMatch;
+ TMModifierMatch modMatch;
+ int currIndex = -1;
+
+ /*
+ * we want the first sequence that both matches and has actions.
+ * we keep on looking till we find both
+ */
+ LOCK_PROCESS;
+ while ((currIndex =
+ MatchComplexBranch(*stateTreePtr,
+ ++currIndex,
+ (*contextPtr),
+ &candState))
+ != TM_NO_MATCH) {
+ if (candState != NULL) {
+ typeMatch = TMGetTypeMatch(candState->typeIndex);
+ modMatch = TMGetModifierMatch(candState->modIndex);
+
+ /* does this state's index match? --> done */
+ if (MatchIncomingEvent(curEventPtr, typeMatch, modMatch))
+ {
+ if (candState->actions) {
+ UNLOCK_PROCESS;
+ return candState;
+ }
+ else
+ matchState = candState;
+ }
+ /* is this an event timer? */
+ if (typeMatch->eventType == _XtEventTimerEventType) {
+ StatePtr nextState = candState->nextLevel;
+
+ /* does the succeeding state match? */
+ if (nextState != NULL) {
+ TMTypeMatch nextTypeMatch;
+ TMModifierMatch nextModMatch;
+
+ nextTypeMatch = TMGetTypeMatch(nextState->typeIndex);
+ nextModMatch = TMGetModifierMatch(nextState->modIndex);
+
+ /* is it within the timeout? */
+ if (MatchIncomingEvent(curEventPtr,
+ nextTypeMatch,
+ nextModMatch)) {
+ XEvent *xev = curEventPtr->xev;
+ unsigned long time = GetTime(tmRecPtr, xev);
+ XtPerDisplay pd = _XtGetPerDisplay(xev->xany.display);
+ unsigned long delta = pd->multi_click_time;
+
+ if ((tmRecPtr->lastEventTime + delta) >= time) {
+ if (nextState->actions) {
+ UNLOCK_PROCESS;
+ return candState;
+ }
+ else
+ matchState = candState;
+ }
+ }
+ }
+ }
+ }
+ }
+ UNLOCK_PROCESS;
+ return matchState;
+}
+
+static void HandleComplexState(
+ Widget w,
+ XtTM tmRecPtr,
+ TMEventRec *curEventPtr)
+{
+ XtTranslations xlations = tmRecPtr->translations;
+ TMContext *contextPtr = GetContextPtr(tmRecPtr);
+ TMShortCard i, matchTreeIndex = 0;
+ StatePtr matchState = NULL, candState;
+ TMComplexStateTree *stateTreePtr =
+ (TMComplexStateTree *)&xlations->stateTreeTbl[0];
+
+ LOCK_PROCESS;
+ for (i = 0;
+ i < xlations->numStateTrees;
+ i++, stateTreePtr++) {
+ /*
+ * some compilers sign extend Boolean bit fields so test for
+ * false |||
+ */
+ if (((*stateTreePtr)->isSimple == False) &&
+ (candState = TryCurrentTree(stateTreePtr,
+ tmRecPtr,
+ curEventPtr))) {
+ if (!matchState || candState->actions) {
+ matchTreeIndex = i;
+ matchState = candState;
+ if (candState->actions)
+ break;
+ }
+ }
+ }
+ if (matchState == NULL){
+ /* couldn't find it... */
+ if (!Ignore(curEventPtr))
+ {
+ FreeContext(contextPtr);
+ HandleSimpleState(w, tmRecPtr, curEventPtr);
+ }
+ }
+ else {
+ TMBindData bindData = (TMBindData) tmRecPtr->proc_table;
+ XtActionProc *procs;
+ Widget accelWidget;
+ TMTypeMatch typeMatch;
+
+ typeMatch = TMGetTypeMatch(matchState->typeIndex);
+
+ PushContext(contextPtr, matchState);
+ if (typeMatch->eventType == _XtEventTimerEventType) {
+ matchState = matchState->nextLevel;
+ PushContext(contextPtr, matchState);
+ }
+ tmRecPtr->lastEventTime = GetTime (tmRecPtr, curEventPtr->xev);
+
+ if (bindData->simple.isComplex) {
+ TMComplexBindProcs bindProcs =
+ TMGetComplexBindEntry(bindData, matchTreeIndex);
+ procs = bindProcs->procs;
+ accelWidget = bindProcs->widget;
+ }
+ else {
+ TMSimpleBindProcs bindProcs =
+ TMGetSimpleBindEntry(bindData, matchTreeIndex);
+ procs = bindProcs->procs;
+ accelWidget = NULL;
+ }
+ HandleActions(w,
+ curEventPtr->xev,
+ (TMSimpleStateTree)
+ xlations->stateTreeTbl[matchTreeIndex],
+ accelWidget,
+ procs,
+ matchState->actions);
+ }
+ UNLOCK_PROCESS;
+}
+
+
+void _XtTranslateEvent (
+ Widget w,
+ XEvent * event)
+{
+ XtTM tmRecPtr = &w->core.tm;
+ TMEventRec curEvent;
+ StatePtr current_state = tmRecPtr->current_state;
+
+ XEventToTMEvent (event, &curEvent);
+
+ if (! tmRecPtr->translations) {
+ XtAppWarningMsg(XtWidgetToApplicationContext(w),
+ XtNtranslationError,"nullTable",XtCXtToolkitError,
+ "Can't translate event through NULL table",
+ (String *)NULL, (Cardinal *)NULL);
+ return ;
+ }
+ if (current_state == NULL)
+ HandleSimpleState(w, tmRecPtr, &curEvent);
+ else
+ HandleComplexState(w, tmRecPtr, &curEvent);
+}
+
+
+/*ARGSUSED*/
+static StatePtr NewState(
+ TMParseStateTree stateTree,
+ TMShortCard typeIndex,
+ TMShortCard modIndex)
+{
+ StatePtr state = XtNew(StateRec);
+
+#ifdef TRACE_TM
+ LOCK_PROCESS;
+ _XtGlobalTM.numComplexStates++;
+ UNLOCK_PROCESS;
+#endif /* TRACE_TM */
+ state->typeIndex = typeIndex;
+ state->modIndex = modIndex;
+ state->nextLevel = NULL;
+ state->actions = NULL;
+ state->isCycleStart = state->isCycleEnd = False;
+ return state;
+}
+
+/*
+ * This routine is an iterator for state trees. If the func returns
+ * true then iteration is over.
+ */
+void _XtTraverseStateTree(
+ TMStateTree tree,
+ _XtTraversalProc func,
+ XtPointer data)
+{
+ TMComplexStateTree stateTree = (TMComplexStateTree)tree;
+ TMBranchHead currBH;
+ TMShortCard i;
+ StateRec dummyStateRec, *dummyState = &dummyStateRec;
+ ActionRec dummyActionRec, *dummyAction = &dummyActionRec;
+ Boolean firstSimple = True;
+ StatePtr currState;
+
+ /* first traverse the complex states */
+ if (stateTree->isSimple == False)
+ for (i = 0; i < stateTree->numComplexBranchHeads; i++) {
+ currState = stateTree->complexBranchHeadTbl[i];
+ for (; currState; currState = currState->nextLevel) {
+ if (func(currState, data))
+ return;
+ if (currState->isCycleEnd)
+ break;
+ }
+ }
+
+ /* now traverse the simple ones */
+ for (i = 0, currBH = stateTree->branchHeadTbl;
+ i < stateTree->numBranchHeads;
+ i++, currBH++)
+ {
+ if (currBH->isSimple && currBH->hasActions)
+ {
+ if (firstSimple)
+ {
+ XtBZero((char *) dummyState, sizeof(StateRec));
+ XtBZero((char *) dummyAction, sizeof(ActionRec));
+ dummyState->actions = dummyAction;
+ firstSimple = False;
+ }
+ dummyState->typeIndex = currBH->typeIndex;
+ dummyState->modIndex = currBH->modIndex;
+ dummyAction->idx = currBH->more;
+ if (func(dummyState, data))
+ return;
+ }
+ }
+}
+
+static EventMask EventToMask(
+ TMTypeMatch typeMatch,
+ TMModifierMatch modMatch)
+{
+ EventMask returnMask;
+ unsigned long eventType = typeMatch->eventType;
+
+ if (eventType == MotionNotify) {
+ Modifiers modifierMask = modMatch->modifierMask;
+ Modifiers tempMask;
+
+ returnMask = 0;
+ if (modifierMask == 0) {
+ if (modMatch->modifiers == AnyButtonMask)
+ return ButtonMotionMask;
+ else
+ return PointerMotionMask;
+ }
+ tempMask = modifierMask &
+ (Button1Mask | Button2Mask | Button3Mask
+ | Button4Mask | Button5Mask);
+ if (tempMask == 0)
+ return PointerMotionMask;
+ if (tempMask & Button1Mask)
+ returnMask |= Button1MotionMask;
+ if (tempMask & Button2Mask)
+ returnMask |= Button2MotionMask;
+ if (tempMask & Button3Mask)
+ returnMask |= Button3MotionMask;
+ if (tempMask & Button4Mask)
+ returnMask |= Button4MotionMask;
+ if (tempMask & Button5Mask)
+ returnMask |= Button5MotionMask;
+ return returnMask;
+ }
+ returnMask = _XtConvertTypeToMask(eventType);
+ if (returnMask == (StructureNotifyMask|SubstructureNotifyMask))
+ returnMask = StructureNotifyMask;
+ return returnMask;
+}
+
+/*ARGSUSED*/
+static void DispatchMappingNotify(
+ Widget widget, /* will be NULL from _RefreshMapping */
+ XtPointer closure, /* real Widget */
+ XtPointer call_data) /* XEvent* */
+{
+ _XtTranslateEvent( (Widget)closure, (XEvent*)call_data);
+}
+
+
+/*ARGSUSED*/
+static void RemoveFromMappingCallbacks(
+ Widget widget,
+ XtPointer closure, /* target widget */
+ XtPointer call_data)
+{
+ _XtRemoveCallback( &_XtGetPerDisplay(XtDisplay(widget))->mapping_callbacks,
+ DispatchMappingNotify,
+ closure
+ );
+}
+
+static Boolean AggregateEventMask(
+ StatePtr state,
+ XtPointer data)
+{
+ LOCK_PROCESS;
+ *((EventMask *)data) |= EventToMask(TMGetTypeMatch(state->typeIndex),
+ TMGetModifierMatch(state->modIndex));
+ UNLOCK_PROCESS;
+ return False;
+}
+
+void _XtInstallTranslations(
+ Widget widget)
+{
+ XtTranslations xlations;
+ Cardinal i;
+ TMStateTree stateTree;
+ Boolean mappingNotifyInterest = False;
+
+ xlations = widget->core.tm.translations;
+ if (xlations == NULL) return;
+
+ /*
+ * check for somebody stuffing the translations directly into the
+ * instance structure. We will end up being called again out of
+ * ComposeTranslations but we *should* have bindings by then
+ */
+ if (widget->core.tm.proc_table == NULL) {
+ _XtMergeTranslations(widget, NULL, XtTableReplace);
+ /*
+ * if we're realized then we'll be called out of
+ * ComposeTranslations
+ */
+ if (XtIsRealized(widget))
+ return;
+ }
+
+ xlations->eventMask = 0;
+ for (i = 0;
+ i < xlations->numStateTrees;
+ i++)
+ {
+ stateTree = xlations->stateTreeTbl[i];
+ _XtTraverseStateTree(stateTree,
+ AggregateEventMask,
+ (XtPointer)&xlations->eventMask);
+ mappingNotifyInterest |= stateTree->simple.mappingNotifyInterest;
+ }
+ /* double click needs to make sure that you have selected on both
+ button down and up. */
+
+ if (xlations->eventMask & ButtonPressMask)
+ xlations->eventMask |= ButtonReleaseMask;
+ if (xlations->eventMask & ButtonReleaseMask)
+ xlations->eventMask |= ButtonPressMask;
+
+ if (mappingNotifyInterest) {
+ XtPerDisplay pd = _XtGetPerDisplay(XtDisplay(widget));
+ if (pd->mapping_callbacks)
+ _XtAddCallbackOnce(&(pd->mapping_callbacks),
+ DispatchMappingNotify,
+ (XtPointer)widget);
+ else
+ _XtAddCallback(&(pd->mapping_callbacks),
+ DispatchMappingNotify,
+ (XtPointer)widget);
+
+ if (widget->core.destroy_callbacks != NULL)
+ _XtAddCallbackOnce( (InternalCallbackList *)
+ &widget->core.destroy_callbacks,
+ RemoveFromMappingCallbacks,
+ (XtPointer)widget
+ );
+ else
+ _XtAddCallback((InternalCallbackList *)
+ &widget->core.destroy_callbacks,
+ RemoveFromMappingCallbacks,
+ (XtPointer)widget
+ );
+ }
+ _XtBindActions(widget, (XtTM)&widget->core.tm);
+ _XtRegisterGrabs(widget);
+}
+
+void _XtRemoveTranslations(
+ Widget widget)
+{
+ Cardinal i;
+ TMSimpleStateTree stateTree;
+ Boolean mappingNotifyInterest = False;
+ XtTranslations xlations = widget->core.tm.translations;
+
+ if (xlations == NULL)
+ return;
+
+ for (i = 0;
+ i < xlations->numStateTrees;
+ i++)
+ {
+ stateTree = (TMSimpleStateTree)xlations->stateTreeTbl[i];
+ mappingNotifyInterest |= stateTree->mappingNotifyInterest;
+ }
+ if (mappingNotifyInterest)
+ RemoveFromMappingCallbacks(widget, (XtPointer)widget, NULL);
+}
+
+static void _XtUninstallTranslations(
+ Widget widget)
+{
+ XtTranslations xlations = widget->core.tm.translations;
+
+ _XtUnbindActions(widget,
+ xlations,
+ (TMBindData)widget->core.tm.proc_table);
+ _XtRemoveTranslations(widget);
+ widget->core.tm.translations = NULL;
+ FreeContext((TMContext *)&widget->core.tm.current_state);
+}
+
+void _XtDestroyTMData(
+ Widget widget)
+{
+ TMComplexBindData cBindData;
+
+ _XtUninstallTranslations(widget);
+
+ if ((cBindData = (TMComplexBindData)widget->core.tm.proc_table)) {
+ if (cBindData->isComplex) {
+ ATranslations aXlations, nXlations;
+
+ nXlations = (ATranslations) cBindData->accel_context;
+ while (nXlations){
+ aXlations = nXlations;
+ nXlations = nXlations->next;
+ XtFree((char *)aXlations);
+ }
+ }
+ XtFree((char *)cBindData);
+ }
+}
+
+/*** Public procedures ***/
+
+
+void XtUninstallTranslations(
+ Widget widget)
+{
+ EventMask oldMask;
+ Widget hookobj;
+ WIDGET_TO_APPCON(widget);
+
+ LOCK_APP(app);
+ if (! widget->core.tm.translations) {
+ UNLOCK_APP(app);
+ return;
+ }
+ oldMask = widget->core.tm.translations->eventMask;
+ _XtUninstallTranslations(widget);
+ if (XtIsRealized(widget) && oldMask)
+ XSelectInput(XtDisplay(widget), XtWindow(widget),
+ XtBuildEventMask(widget));
+ hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget));
+ if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) {
+ XtChangeHookDataRec call_data;
+
+ call_data.type = XtHuninstallTranslations;
+ call_data.widget = widget;
+ XtCallCallbackList(hookobj,
+ ((HookObject)hookobj)->hooks.changehook_callbacks,
+ (XtPointer)&call_data);
+ }
+ UNLOCK_APP(app);
+}
+
+XtTranslations _XtCreateXlations(
+ TMStateTree *stateTrees,
+ TMShortCard numStateTrees,
+ XtTranslations first,
+ XtTranslations second)
+{
+ XtTranslations xlations;
+ TMShortCard i;
+
+ xlations = (XtTranslations)
+ __XtMalloc(sizeof(TranslationData) +
+ (numStateTrees-1) * sizeof(TMStateTree));
+#ifdef TRACE_TM
+ LOCK_PROCESS;
+ if (_XtGlobalTM.numTms == _XtGlobalTM.tmTblSize) {
+ _XtGlobalTM.tmTblSize += 16;
+ _XtGlobalTM.tmTbl = (XtTranslations *)
+ XtRealloc((char *)_XtGlobalTM.tmTbl,
+ _XtGlobalTM.tmTblSize * sizeof(XtTranslations));
+ }
+ _XtGlobalTM.tmTbl[_XtGlobalTM.numTms++] = xlations;
+ UNLOCK_PROCESS;
+#endif /* TRACE_TM */
+
+ xlations->composers[0] = first;
+ xlations->composers[1] = second;
+ xlations->hasBindings = False;
+ xlations->operation = XtTableReplace;
+
+ for (i = 0;i < numStateTrees; i++)
+ {
+ xlations->stateTreeTbl[i] = (TMStateTree) stateTrees[i];
+ stateTrees[i]->simple.refCount++;
+ }
+ xlations->numStateTrees = numStateTrees;
+ xlations->eventMask = 0;
+ return xlations;
+}
+
+TMStateTree _XtParseTreeToStateTree(
+ TMParseStateTree parseTree)
+{
+ TMSimpleStateTree simpleTree;
+ unsigned int tableSize;
+
+ if (parseTree->numComplexBranchHeads) {
+ TMComplexStateTree complexTree;
+
+ complexTree = XtNew(TMComplexStateTreeRec);
+ complexTree->isSimple = False;
+ tableSize = parseTree->numComplexBranchHeads * sizeof(StatePtr);
+ complexTree->complexBranchHeadTbl = (StatePtr *)
+ __XtMalloc(tableSize);
+ XtMemmove(complexTree->complexBranchHeadTbl,
+ parseTree->complexBranchHeadTbl, tableSize);
+ complexTree->numComplexBranchHeads =
+ parseTree->numComplexBranchHeads;
+ simpleTree = (TMSimpleStateTree)complexTree;
+ }
+ else {
+ simpleTree = XtNew(TMSimpleStateTreeRec);
+ simpleTree->isSimple = True;
+ }
+ simpleTree->isAccelerator = parseTree->isAccelerator;
+ simpleTree->refCount = 0;
+ simpleTree->mappingNotifyInterest = parseTree->mappingNotifyInterest;
+
+ tableSize = parseTree->numBranchHeads * sizeof(TMBranchHeadRec);
+ simpleTree->branchHeadTbl = (TMBranchHead)
+ __XtMalloc(tableSize);
+ XtMemmove(simpleTree->branchHeadTbl, parseTree->branchHeadTbl, tableSize);
+ simpleTree->numBranchHeads = parseTree->numBranchHeads;
+
+ tableSize = parseTree->numQuarks * sizeof(XrmQuark);
+ simpleTree->quarkTbl = (XrmQuark *) __XtMalloc(tableSize);
+ XtMemmove(simpleTree->quarkTbl, parseTree->quarkTbl, tableSize);
+ simpleTree->numQuarks = parseTree->numQuarks;
+
+ return (TMStateTree)simpleTree;
+}
+
+static void FreeActions(
+ ActionPtr actions)
+{
+ ActionPtr action;
+ TMShortCard i;
+ for (action = actions; action;) {
+ ActionPtr nextAction = action->next;
+ for (i = action->num_params; i;) {
+ XtFree( action->params[--i] );
+ }
+ XtFree( (char*)action->params );
+ XtFree((char*) action);
+ action = nextAction;
+ }
+}
+
+/*ARGSUSED*/
+static void AmbigActions(
+ EventSeqPtr initialEvent,
+ StatePtr *state,
+ TMParseStateTree stateTree)
+{
+ String params[3];
+ Cardinal numParams = 0;
+
+ params[numParams++] = _XtPrintEventSeq(initialEvent, NULL);
+ params[numParams++] = _XtPrintActions((*state)->actions,
+ stateTree->quarkTbl);
+ XtWarningMsg (XtNtranslationError,"oldActions",XtCXtToolkitError,
+ "Previous entry was: %s %s", params, &numParams);
+ XtFree((char *)params[0]);
+ XtFree((char *)params[1]);
+ numParams = 0;
+ params[numParams++] = _XtPrintActions(initialEvent->actions,
+ stateTree->quarkTbl);
+ XtWarningMsg (XtNtranslationError,"newActions",XtCXtToolkitError,
+ "New actions are:%s", params, &numParams);
+ XtFree((char *)params[0]);
+ XtWarningMsg (XtNtranslationError,"ambiguousActions",
+ XtCXtToolkitError,
+ "Overriding earlier translation manager actions.",
+ (String *)NULL, (Cardinal *)NULL);
+
+ FreeActions((*state)->actions);
+ (*state)->actions = NULL;
+}
+
+
+void _XtAddEventSeqToStateTree(
+ EventSeqPtr eventSeq,
+ TMParseStateTree stateTree)
+{
+ StatePtr *state;
+ EventSeqPtr initialEvent = eventSeq;
+ TMBranchHead branchHead;
+ TMShortCard idx, modIndex, typeIndex;
+
+ if (eventSeq == NULL) return;
+
+ /* note that all states in the event seq passed in start out null */
+ /* we fill them in with the matching state as we traverse the list */
+
+ /*
+ * We need to free the parser data structures !!!
+ */
+
+ typeIndex = _XtGetTypeIndex(&eventSeq->event);
+ modIndex = _XtGetModifierIndex(&eventSeq->event);
+ idx = GetBranchHead(stateTree, typeIndex, modIndex, False);
+ branchHead = &stateTree->branchHeadTbl[idx];
+
+ /*
+ * Need to check for pre-existing actions with same lhs |||
+ */
+
+ /*
+ * Check for optimized case. Don't assume that the eventSeq has actions.
+ */
+ if (!eventSeq->next &&
+ eventSeq->actions &&
+ !eventSeq->actions->next &&
+ !eventSeq->actions->num_params)
+ {
+ if (eventSeq->event.eventType == MappingNotify)
+ stateTree->mappingNotifyInterest = True;
+ branchHead->hasActions = True;
+ branchHead->more = eventSeq->actions->idx;
+ FreeActions(eventSeq->actions);
+ eventSeq->actions = NULL;
+ return;
+ }
+
+ branchHead->isSimple = False;
+ if (!eventSeq->next)
+ branchHead->hasActions = True;
+ branchHead->more = GetComplexBranchIndex(stateTree, typeIndex, modIndex);
+ state = &stateTree->complexBranchHeadTbl[TMBranchMore(branchHead)];
+
+ for (;;) {
+ *state = NewState(stateTree, typeIndex, modIndex);
+
+ if (eventSeq->event.eventType == MappingNotify)
+ stateTree->mappingNotifyInterest = True;
+
+ /* *state now points at state record matching event */
+ eventSeq->state = *state;
+
+ if (eventSeq->actions != NULL) {
+ if ((*state)->actions != NULL)
+ AmbigActions(initialEvent, state, stateTree);
+ (*state)->actions = eventSeq->actions;
+#ifdef TRACE_TM
+ LOCK_PROCESS
+ _XtGlobalTM.numComplexActions++;
+ UNLOCK_PROCESS;
+#endif /* TRACE_TM */
+ }
+
+ if (((eventSeq = eventSeq->next) == NULL) || (eventSeq->state))
+ break;
+
+ state = &(*state)->nextLevel;
+ typeIndex = _XtGetTypeIndex(&eventSeq->event);
+ modIndex = _XtGetModifierIndex(&eventSeq->event);
+ LOCK_PROCESS;
+ if (!TMNewMatchSemantics()) {
+ /*
+ * force a potential empty entry into the branch head
+ * table in order to emulate old matching behavior
+ */
+ (void) GetBranchHead(stateTree, typeIndex, modIndex, True);
+ }
+ UNLOCK_PROCESS;
+ }
+
+ if (eventSeq && eventSeq->state) {
+ /* we've been here before... must be a cycle in the event seq. */
+ branchHead->hasCycles = True;
+ (*state)->nextLevel = eventSeq->state;
+ eventSeq->state->isCycleStart = True;
+ (*state)->isCycleEnd = TRUE;
+ }
+}
+
+
+/*
+ * Internal Converter for merging. Old and New must both be valid xlations
+ */
+
+/*ARGSUSED*/
+Boolean _XtCvtMergeTranslations(
+ Display *dpy,
+ XrmValuePtr args,
+ Cardinal *num_args,
+ XrmValuePtr from,
+ XrmValuePtr to,
+ XtPointer *closure_ret)
+{
+ XtTranslations first, second, xlations;
+ TMStateTree *stateTrees, stackStateTrees[16];
+ TMShortCard numStateTrees, i;
+
+ if (*num_args != 0)
+ XtWarningMsg("invalidParameters","mergeTranslations",XtCXtToolkitError,
+ "MergeTM to TranslationTable needs no extra arguments",
+ (String *)NULL, (Cardinal *)NULL);
+
+ if (to->addr != NULL && to->size < sizeof(XtTranslations)) {
+ to->size = sizeof(XtTranslations);
+ return False;
+ }
+
+ first = ((TMConvertRec*)from->addr)->old;
+ second = ((TMConvertRec*)from->addr)->new;
+
+ numStateTrees = first->numStateTrees + second->numStateTrees;
+
+ stateTrees = (TMStateTree *)
+ XtStackAlloc(numStateTrees * sizeof(TMStateTree), stackStateTrees);
+
+ for (i = 0; i < first->numStateTrees; i++)
+ stateTrees[i] = first->stateTreeTbl[i];
+ for (i = 0; i < second->numStateTrees; i++)
+ stateTrees[i + first->numStateTrees] = second->stateTreeTbl[i];
+
+ xlations = _XtCreateXlations(stateTrees, numStateTrees, first, second);
+
+ if (to->addr != NULL) {
+ *(XtTranslations*)to->addr = xlations;
+ }
+ else {
+ static XtTranslations staticStateTable;
+ staticStateTable = xlations;
+ to->addr= (XPointer)&staticStateTable;
+ to->size = sizeof(XtTranslations);
+ }
+
+ XtStackFree((XtPointer)stateTrees, (XtPointer)stackStateTrees);
+ return True;
+}
+
+
+static XtTranslations MergeThem(
+ Widget dest,
+ XtTranslations first,
+ XtTranslations second)
+{
+ XtCacheRef cache_ref;
+ static XrmQuark from_type = NULLQUARK, to_type;
+ XrmValue from, to;
+ TMConvertRec convert_rec;
+ XtTranslations newTable;
+
+ LOCK_PROCESS;
+ if (from_type == NULLQUARK) {
+ from_type = XrmPermStringToQuark(_XtRStateTablePair);
+ to_type = XrmPermStringToQuark(XtRTranslationTable);
+ }
+ UNLOCK_PROCESS;
+ from.addr = (XPointer)&convert_rec;
+ from.size = sizeof(TMConvertRec);
+ to.addr = (XPointer)&newTable;
+ to.size = sizeof(XtTranslations);
+ convert_rec.old = first;
+ convert_rec.new = second;
+
+ LOCK_PROCESS;
+ if (! _XtConvert(dest, from_type, &from, to_type, &to, &cache_ref)) {
+ UNLOCK_PROCESS;
+ return NULL;
+ }
+ UNLOCK_PROCESS;
+
+#ifndef REFCNT_TRANSLATIONS
+
+ if (cache_ref)
+ XtAddCallback(dest, XtNdestroyCallback,
+ XtCallbackReleaseCacheRef, (XtPointer)cache_ref);
+
+#endif
+
+ return newTable;
+}
+
+/*
+ * Unmerge will recursively traverse the xlation compose tree and
+ * generate a new xlation that is the result of all instances of
+ * xlations being removed. It currently doesn't differentiate between
+ * the potential that an xlation will be both an accelerator and
+ * normal. This is not supported by the spec anyway.
+ */
+static XtTranslations UnmergeTranslations(
+ Widget widget,
+ XtTranslations xlations,
+ XtTranslations unmergeXlations,
+ TMShortCard currIndex,
+ TMComplexBindProcs oldBindings,
+ TMShortCard numOldBindings,
+ TMComplexBindProcs newBindings,
+ TMShortCard *numNewBindingsRtn)
+
+{
+ XtTranslations first, second, result;
+
+ if (!xlations || (xlations == unmergeXlations))
+ return NULL;
+
+ if (xlations->composers[0]) {
+ first = UnmergeTranslations(widget, xlations->composers[0],
+ unmergeXlations, currIndex,
+ oldBindings, numOldBindings,
+ newBindings, numNewBindingsRtn);
+ }
+ else
+ first = NULL;
+
+ if (xlations->composers[1]) {
+ second = UnmergeTranslations(widget, xlations->composers[1],
+ unmergeXlations,
+ currIndex +
+ xlations->composers[0]->numStateTrees,
+ oldBindings, numOldBindings,
+ newBindings, numNewBindingsRtn);
+ }
+ else
+ second = NULL;
+
+ if (first || second) {
+ if (first && second) {
+ if ((first != xlations->composers[0]) ||
+ (second != xlations->composers[1]))
+ result = MergeThem(widget, first, second);
+ else result = xlations;
+ }
+ else {
+ if (first)
+ result = first;
+ else
+ result = second;
+ }
+ } else { /* only update for leaf nodes */
+ if (numOldBindings) {
+ Cardinal i;
+ for (i = 0; i < xlations->numStateTrees; i++) {
+ if (xlations->stateTreeTbl[i]->simple.isAccelerator)
+ newBindings[*numNewBindingsRtn] =
+ oldBindings[currIndex + i];
+ (*numNewBindingsRtn)++;
+ }
+ }
+ result = xlations;
+ }
+ return result;
+}
+
+typedef struct {
+ XtTranslations xlations;
+ TMComplexBindProcs bindings;
+}MergeBindRec, *MergeBind;
+
+static XtTranslations MergeTranslations(
+ Widget widget,
+ XtTranslations oldXlations,
+ XtTranslations newXlations,
+ _XtTranslateOp operation,
+ Widget source,
+ TMComplexBindProcs oldBindings,
+ TMComplexBindProcs newBindings,
+ TMShortCard *numNewRtn)
+{
+ XtTranslations newTable = NULL, xlations;
+ TMComplexBindProcs bindings;
+ TMShortCard i, j;
+ TMStateTree *treePtr;
+ TMShortCard numNew = *numNewRtn;
+ MergeBindRec bindPair[2];
+
+ /* If the new translation has an accelerator context then pull it
+ * off and pass it and the real xlations in to the caching merge
+ * routine.
+ */
+ if (newXlations->hasBindings) {
+ xlations = ((ATranslations) newXlations)->xlations;
+ bindings = (TMComplexBindProcs)
+ &((ATranslations) newXlations)->bindTbl[0];
+ }
+ else {
+ xlations = newXlations;
+ bindings = NULL;
+ }
+ switch(operation) {
+ case XtTableReplace:
+ newTable = bindPair[0].xlations = xlations;
+ bindPair[0].bindings = bindings;
+ bindPair[1].xlations = NULL;
+ bindPair[1].bindings = NULL;
+ break;
+ case XtTableAugment:
+ bindPair[0].xlations = oldXlations;
+ bindPair[0].bindings = oldBindings;
+ bindPair[1].xlations = xlations;
+ bindPair[1].bindings = bindings;
+ newTable = NULL;
+ break;
+ case XtTableOverride:
+ bindPair[0].xlations = xlations;
+ bindPair[0].bindings = bindings;
+ bindPair[1].xlations = oldXlations;
+ bindPair[1].bindings = oldBindings;
+ newTable = NULL;
+ break;
+ }
+ if (!newTable)
+ newTable = MergeThem(widget, bindPair[0].xlations, bindPair[1].xlations);
+
+ for (i = 0, numNew = 0; i < 2; i++) {
+ if (bindPair[i].xlations)
+ for (j = 0; j < bindPair[i].xlations->numStateTrees; j++, numNew++) {
+ if (bindPair[i].xlations->stateTreeTbl[j]->simple.isAccelerator) {
+ if (bindPair[i].bindings)
+ newBindings[numNew] = bindPair[i].bindings[j];
+ else {
+ newBindings[numNew].widget = source;
+ newBindings[numNew].aXlations =
+ bindPair[i].xlations;
+ }
+ }
+ }
+ }
+ *numNewRtn = numNew;
+ treePtr = &newTable->stateTreeTbl[0];
+ for (i = 0; i < newTable->numStateTrees; i++, treePtr++)
+ (*treePtr)->simple.refCount++;
+ return newTable;
+}
+
+static TMBindData MakeBindData(
+ TMComplexBindProcs bindings,
+ TMShortCard numBindings,
+ TMBindData oldBindData)
+{
+ TMLongCard bytes;
+ TMShortCard i;
+ Boolean isComplex;
+ TMBindData bindData;
+
+ if (numBindings == 0)
+ return NULL;
+ for (i = 0; i < numBindings; i++)
+ if (bindings[i].widget)
+ break;
+ isComplex = (i < numBindings);
+ if (isComplex)
+ bytes = (sizeof(TMComplexBindDataRec) +
+ ((numBindings - 1) *
+ sizeof(TMComplexBindProcsRec)));
+ else
+ bytes = (sizeof(TMSimpleBindDataRec) +
+ ((numBindings - 1) *
+ sizeof(TMSimpleBindProcsRec)));
+
+ bindData = (TMBindData) __XtCalloc(sizeof(char), bytes);
+ bindData->simple.isComplex = isComplex;
+ if (isComplex) {
+ TMComplexBindData cBindData = (TMComplexBindData)bindData;
+ /*
+ * If there were any accelerator contexts in the old bindData
+ * then propagate them to the new one.
+ */
+ if (oldBindData && oldBindData->simple.isComplex)
+ cBindData->accel_context =
+ ((TMComplexBindData) oldBindData)->accel_context;
+ XtMemmove((char *)&cBindData->bindTbl[0], (char *)bindings,
+ numBindings * sizeof(TMComplexBindProcsRec));
+ }
+ return bindData;
+}
+
+/*
+ * This routine is the central clearinghouse for merging translations
+ * into a widget. It takes care of preping the action bindings for
+ * realize time and calling the converter or doing a straight merge if
+ * the destination is empty.
+ */
+static Boolean ComposeTranslations(
+ Widget dest,
+ _XtTranslateOp operation,
+ Widget source,
+ XtTranslations newXlations)
+{
+ XtTranslations newTable, oldXlations;
+ XtTranslations accNewXlations;
+ EventMask oldMask = 0;
+ TMBindData bindData;
+ TMComplexBindProcs oldBindings = NULL;
+ TMShortCard numOldBindings = 0, numNewBindings = 0, numBytes;
+ TMComplexBindProcsRec stackBindings[16], *newBindings;
+
+ /*
+ * how should we be handling the refcount decrement for the
+ * replaced translation table ???
+ */
+ if (!newXlations)
+ {
+ XtAppWarningMsg(XtWidgetToApplicationContext(dest),
+ XtNtranslationError,"nullTable",XtCXtToolkitError,
+ "table to (un)merge must not be null",
+ (String *)NULL, (Cardinal *)NULL);
+ return False;
+ }
+
+ accNewXlations = newXlations;
+ newXlations = ((newXlations->hasBindings)
+ ? ((ATranslations)newXlations)->xlations
+ : newXlations);
+
+ if (!(oldXlations = dest->core.tm.translations))
+ operation = XtTableReplace;
+
+ /*
+ * try to avoid generation of duplicate state trees. If the source
+ * isn't simple (1 state Tree) then it's too much hassle
+ */
+ if (((operation == XtTableAugment) ||
+ (operation == XtTableOverride)) &&
+ (newXlations->numStateTrees == 1)) {
+ Cardinal i;
+ for (i = 0; i < oldXlations->numStateTrees; i++)
+ if (oldXlations->stateTreeTbl[i] ==
+ newXlations->stateTreeTbl[0])
+ break;
+ if (i < oldXlations->numStateTrees) {
+ if (operation == XtTableAugment) {
+ /*
+ * we don't need to do anything since it's already
+ * there
+ */
+ return True;
+ }
+ else {/* operation == XtTableOverride */
+ /*
+ * We'll get rid of the duplicate trees throughout the
+ * and leave it with a pruned translation table. This
+ * will only work if the same table has been merged
+ * into this table (or one of it's composers
+ */
+ _XtUnmergeTranslations(dest, newXlations);
+ /*
+ * reset oldXlations so we're back in sync
+ */
+ if (!(oldXlations = dest->core.tm.translations))
+ operation = XtTableReplace;
+ }
+ }
+ }
+
+ bindData = (TMBindData) dest->core.tm.proc_table;
+ if (bindData) {
+ numOldBindings = (oldXlations ? oldXlations->numStateTrees : 0);
+ if (bindData->simple.isComplex)
+ oldBindings = &((TMComplexBindData)bindData)->bindTbl[0];
+ else
+ oldBindings = (TMComplexBindProcs)
+ (&((TMSimpleBindData)bindData)->bindTbl[0]);
+ }
+
+ numBytes =(((oldXlations ? oldXlations->numStateTrees : 0)
+ + newXlations->numStateTrees) * sizeof(TMComplexBindProcsRec));
+ newBindings = (TMComplexBindProcs) XtStackAlloc(numBytes, stackBindings);
+ XtBZero((char *)newBindings, numBytes);
+
+ if (operation == XtTableUnmerge) {
+ newTable = UnmergeTranslations(dest,
+ oldXlations,
+ newXlations,
+ 0,
+ oldBindings, numOldBindings,
+ newBindings, &numNewBindings);
+#ifdef DEBUG
+ /* check for no match for unmerge */
+ if (newTable == oldXlations) {
+ XtWarning("attempt to unmerge invalid table");
+ XtStackFree((char *)newBindings, (char *)stackBindings);
+ return(newTable != NULL);
+ }
+#endif /* DEBUG */
+ }
+ else {
+ newTable = MergeTranslations(dest,
+ oldXlations,
+ accNewXlations,
+ operation,
+ source,
+ oldBindings,
+ newBindings,
+ &numNewBindings);
+ }
+ if (XtIsRealized(dest)) {
+ oldMask = 0;
+ if (oldXlations)
+ oldMask = oldXlations->eventMask;
+ _XtUninstallTranslations(dest);
+ }
+
+ dest->core.tm.proc_table =
+ (XtActionProc *) MakeBindData(newBindings, numNewBindings, bindData);
+
+ if (bindData) XtFree((char *)bindData);
+
+ dest->core.tm.translations = newTable;
+
+ if (XtIsRealized(dest)) {
+ EventMask mask = 0;
+ _XtInstallTranslations(dest);
+ if (newTable)
+ mask = newTable->eventMask;
+ if (mask != oldMask)
+ XSelectInput(XtDisplay(dest), XtWindow(dest),
+ XtBuildEventMask(dest));
+ }
+ XtStackFree((XtPointer)newBindings, (XtPointer)stackBindings);
+ return(newTable != NULL);
+}
+
+/*
+ * If a GetValues is done on a translation resource that contains
+ * accelerators we need to return the accelerator context in addition
+ * to the pure translations. Since this means returning memory that
+ * the client controlls but we still own, we will track the "headers"
+ * that we return (via a linked list pointed to from the bindData) and
+ * free it at destroy time.
+ */
+XtTranslations _XtGetTranslationValue(
+ Widget w)
+{
+ XtTM tmRecPtr = (XtTM) &w->core.tm;
+ ATranslations *aXlationsPtr;
+ TMComplexBindData cBindData = (TMComplexBindData) tmRecPtr->proc_table;
+ XtTranslations xlations = tmRecPtr->translations;
+
+ if (!xlations || !cBindData || !cBindData->isComplex)
+ return xlations;
+
+ /* Walk the list looking to see if we already have generated a
+ * header for the currently installed translations. If we have,
+ * just return that header. Otherwise create a new header.
+ */
+ for (aXlationsPtr = (ATranslations *) &cBindData->accel_context;
+ *aXlationsPtr && (*aXlationsPtr)->xlations != xlations;
+ aXlationsPtr = &(*aXlationsPtr)->next)
+ ;
+ if (*aXlationsPtr)
+ return (XtTranslations) *aXlationsPtr;
+ else {
+ /* create a new aXlations context */
+ ATranslations aXlations;
+ Cardinal numBindings = xlations->numStateTrees;
+
+ (*aXlationsPtr) = aXlations = (ATranslations)
+ __XtMalloc(sizeof(ATranslationData) +
+ (numBindings - 1) * sizeof(TMComplexBindProcsRec));
+
+ aXlations->hasBindings = True;
+ aXlations->xlations = xlations;
+ aXlations->next = NULL;
+ XtMemmove((char *) &aXlations->bindTbl[0],
+ (char *) &cBindData->bindTbl[0],
+ numBindings * sizeof(TMComplexBindProcsRec));
+ return (XtTranslations) aXlations;
+ }
+}
+
+
+/*ARGSUSED*/
+static void RemoveStateTree(
+ TMStateTree tree)
+{
+#ifdef REFCNT_TRANSLATIONS
+ TMComplexStateTree stateTree = (TMComplexStateTree)tree;
+
+ if (--stateTree->refCount == 0) {
+ /*
+ * should we free/refcount the match recs ?
+ */
+ if (!stateTree->isSimple) {
+ StatePtr currState, nextState;
+ TMShortCard i;
+ for (i = 0; i < stateTree->numComplexBranchHeads; i++) {
+ currState =
+ nextState =
+ stateTree->complexBranchHeadTbl[i];
+ for (; nextState;){
+ FreeActions(currState->actions);
+ currState->actions = NULL;
+ if (!currState->isCycleEnd)
+ nextState = currState->nextLevel;
+ else
+ nextState = NULL;
+ XtFree( (char*)currState );
+ }
+ }
+ XtFree((char*)stateTree->complexBranchHeadTbl);
+ }
+ XtFree((char*)stateTree->branchHeadTbl);
+ XtFree((char*)stateTree);
+ }
+#endif /* REFCNT_TRANSLATIONS */
+}
+
+void _XtRemoveStateTreeByIndex(
+ XtTranslations xlations,
+ TMShortCard i)
+{
+ TMStateTree *stateTrees = xlations->stateTreeTbl;
+
+ RemoveStateTree(stateTrees[i]);
+ xlations->numStateTrees--;
+
+ for (; i < xlations->numStateTrees; i++)
+ {
+ stateTrees[i] = stateTrees[i+1];
+ }
+}
+
+/* ARGSUSED */
+void _XtFreeTranslations(
+ XtAppContext app,
+ XrmValuePtr toVal,
+ XtPointer closure,
+ XrmValuePtr args,
+ Cardinal *num_args)
+{
+ XtTranslations xlations;
+ int i;
+
+ if (*num_args != 0)
+ XtAppWarningMsg(app,
+ "invalidParameters","freeTranslations",XtCXtToolkitError,
+ "Freeing XtTranslations requires no extra arguments",
+ (String *)NULL, (Cardinal *)NULL);
+
+ xlations = *(XtTranslations*)toVal->addr;
+ for (i = 0; i < (int)xlations->numStateTrees; i++)
+ RemoveStateTree(xlations->stateTreeTbl[i]);
+ XtFree((char *)xlations);
+}
+
+/* The spec is not clear on when actions specified in accelerators are bound;
+ * Bind them at Realize the same as translations
+ */
+void XtInstallAccelerators(
+ Widget destination, Widget source)
+{
+ XtTranslations aXlations;
+ _XtTranslateOp op;
+ String buf;
+ WIDGET_TO_APPCON(destination);
+
+ /*
+ * test that it was parsed as an accelarator table. Even though
+ * there doesn't need to be a distinction it makes life easier if
+ * we honor the spec implication that aXlations is an accelerator
+ */
+ LOCK_APP(app);
+ LOCK_PROCESS;
+ if ((!XtIsWidget(source)) ||
+ ((aXlations = source->core.accelerators) == NULL) ||
+ (aXlations->stateTreeTbl[0]->simple.isAccelerator == False)) {
+ UNLOCK_PROCESS;
+ UNLOCK_APP(app);
+ return;
+ }
+
+ aXlations = source->core.accelerators;
+ op = aXlations->operation;
+
+ if (ComposeTranslations(destination, op, source, aXlations) &&
+ (XtClass(source)->core_class.display_accelerator != NULL)) {
+
+ buf = _XtPrintXlations(destination, aXlations, source, False);
+ (*(XtClass(source)->core_class.display_accelerator))(source,buf);
+ XtFree(buf);
+ }
+ UNLOCK_PROCESS;
+ UNLOCK_APP(app);
+}
+
+void XtInstallAllAccelerators(
+ Widget destination,
+ Widget source)
+{
+ Cardinal i;
+ CompositeWidget cw;
+ WIDGET_TO_APPCON(destination);
+
+ /* Recurse down normal children */
+ LOCK_APP(app);
+ LOCK_PROCESS;
+ if (XtIsComposite(source)) {
+ cw = (CompositeWidget) source;
+ for (i = 0; i < cw->composite.num_children; i++) {
+ XtInstallAllAccelerators(destination,cw->composite.children[i]);
+ }
+ }
+
+ /* Recurse down popup children */
+ if (XtIsWidget(source)) {
+ for (i = 0; i < source->core.num_popups; i++) {
+ XtInstallAllAccelerators(destination,source->core.popup_list[i]);
+ }
+ }
+ /* Finally, apply procedure to this widget */
+ XtInstallAccelerators(destination,source);
+ UNLOCK_PROCESS;
+ UNLOCK_APP(app);
+}
+
+#if 0 /* dead code */
+static _XtTranslateOp _XtGetTMOperation(
+ XtTranslations xlations)
+{
+ return ((xlations->hasBindings)
+ ? ((ATranslations)xlations)->xlations->operation
+ : xlations->operation);
+}
+#endif
+
+void XtAugmentTranslations(
+ Widget widget,
+ XtTranslations new)
+{
+ Widget hookobj;
+ WIDGET_TO_APPCON(widget);
+
+ LOCK_APP(app);
+ LOCK_PROCESS;
+ (void)ComposeTranslations(widget, XtTableAugment, (Widget)NULL, new);
+ hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget));
+ if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) {
+ XtChangeHookDataRec call_data;
+
+ call_data.type = XtHaugmentTranslations;
+ call_data.widget = widget;
+ XtCallCallbackList(hookobj,
+ ((HookObject)hookobj)->hooks.changehook_callbacks,
+ (XtPointer)&call_data);
+ }
+ UNLOCK_PROCESS;
+ UNLOCK_APP(app);
+}
+
+void XtOverrideTranslations(
+ Widget widget,
+ XtTranslations new)
+{
+ Widget hookobj;
+ WIDGET_TO_APPCON(widget);
+
+ LOCK_APP(app);
+ LOCK_PROCESS;
+ (void) ComposeTranslations(widget, XtTableOverride, (Widget)NULL, new);
+ hookobj = XtHooksOfDisplay(XtDisplayOfObject(widget));
+ if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) {
+ XtChangeHookDataRec call_data;
+
+ call_data.type = XtHoverrideTranslations;
+ call_data.widget = widget;
+ XtCallCallbackList(hookobj,
+ ((HookObject)hookobj)->hooks.changehook_callbacks,
+ (XtPointer)&call_data);
+ }
+ UNLOCK_PROCESS;
+ UNLOCK_APP(app);
+}
+
+void _XtMergeTranslations(
+ Widget widget,
+ XtTranslations newXlations,
+ _XtTranslateOp op)
+{
+ if (!newXlations){
+ if (!widget->core.tm.translations)
+ return;
+ else {
+ newXlations = widget->core.tm.translations;
+ widget->core.tm.translations = NULL;
+ }
+ }
+ (void) ComposeTranslations(widget,
+ op,
+ (Widget)NULL,
+ newXlations);
+}
+
+void _XtUnmergeTranslations(
+ Widget widget,
+ XtTranslations xlations)
+{
+ ComposeTranslations(widget, XtTableUnmerge, (Widget)NULL, xlations);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-16 12:30:57 +0000