Cross Reference: /xsrc/external/mit/libXaw/dist/src/TextSrc.c

Lines Matching defs:undo
67     XawTextUndoList *undo, *redo;
71     XawTextUndoBuffer **undo;
309 	src->textSrc.undo = (XawTextUndo*)XtCalloc(1, sizeof(XawTextUndo));
310 	src->textSrc.undo->dir = XawsdLeft;
313 	src->textSrc.undo = NULL;
338 	FreeUndoBuffer(src->textSrc.undo);
339 	XtFree((char*)src->textSrc.undo);
372 	    newtw->textSrc.undo = (XawTextUndo*)
374 	    newtw->textSrc.undo->dir = XawsdLeft;
377 	    FreeUndoBuffer(newtw->textSrc.undo);
378 	    XtFree((char*)newtw->textSrc.undo);
379 	    newtw->textSrc.undo = NULL;
384 	    if (newtw->textSrc.undo->list) {
385 		newtw->textSrc.undo->l_no_change =
386 		    newtw->textSrc.undo->list->left;
387 		newtw->textSrc.undo->r_no_change =
388 		    newtw->textSrc.undo->list->right;
391 		newtw->textSrc.undo->l_no_change =
392 		    newtw->textSrc.undo->r_no_change = NULL;
692 	src->textSrc.undo->erase = value;
702 	src->textSrc.undo->merge += state ? 1 : -1;
734     XawTextUndoList *undo;
747 	if (src->textSrc.undo->l_save) {
748 	    l_state = src->textSrc.undo->l_save;
749 	    src->textSrc.undo->l_save = NULL;
783 	if (src->textSrc.undo->r_save) {
784 	    r_state = src->textSrc.undo->r_save;
785 	    src->textSrc.undo->r_save = NULL;
808 	if (src->textSrc.undo->u_save) {
809 	    undo = src->textSrc.undo->u_save;
810 	    src->textSrc.undo->u_save = NULL;
813 	    undo = XtNew(XawTextUndoList);
814 	undo->left = l_state;
815 	undo->right = r_state;
816 	undo->undo = src->textSrc.undo->list;
817 	undo->redo = NULL;
820 	undo = NULL;
866 	     src->textSrc.undo->l_save = l_state;
872 	    src->textSrc.undo->r_save = r_state;
874 	    src->textSrc.undo->u_save = undo;
878 	XawTextUndoList *list = src->textSrc.undo->list;
880 	int erase = undo->right->length == 0 && undo->left->length == 1 && list
884 	    erase = list->left->position - 1 == undo->left->position ? -1 :
885 		    list->left->position == undo->left->position ? 1 : 0;
886 	    if (src->textSrc.undo->erase && erase != src->textSrc.undo->erase)
889 		src->textSrc.undo->erase = erase;
901 	/* Try to merge the undo buffers */
902 	if (src->textSrc.undo->merge > 0 && ((erase ||
903 	     (list && ((list->left->length == 0 && undo->left->length == 0) ||
905 			undo->left->length == 1)) &&
906 	      undo->right->length == 1 &&
908 	      == undo->right->position))
909 	    && src->textSrc.undo->pointer == list
924 		       undo->right->buffer, size);
933 	    src->textSrc.undo->l_save = l_state;
934 	    src->textSrc.undo->r_save = r_state;
935 	    src->textSrc.undo->u_save = undo;
942 			   undo->left->buffer, size);
947 		    memcpy(list->left->buffer, undo->left->buffer, size);
954 	    if (src->textSrc.undo->num_list >= UNDO_DEPTH)
955 		UndoGC(src->textSrc.undo);
958 	    src->textSrc.undo->undo = (XawTextUndoBuffer**)
959 		XtRealloc((char*)src->textSrc.undo->undo,
960 			  (Cardinal)((2 + src->textSrc.undo->num_undo)
962 	    src->textSrc.undo->undo[src->textSrc.undo->num_undo++] = l_state;
963 	    src->textSrc.undo->undo[src->textSrc.undo->num_undo++] = r_state;
965 	    if (src->textSrc.undo->list)
966 		src->textSrc.undo->list->redo = undo;
968 		src->textSrc.undo->head = undo;
970 	    src->textSrc.undo->merge = l_state->length <= 1 &&
973 	    src->textSrc.undo->list = src->textSrc.undo->pointer =
974 		src->textSrc.undo->end_mark = undo;
976 	    if (++src->textSrc.undo->num_list >= UNDO_DEPTH)
977 		UndoGC(src->textSrc.undo);
979 	src->textSrc.undo->dir = XawsdLeft;
981 	    src->textSrc.undo->l_no_change = src->textSrc.undo->list->right;
982 	    src->textSrc.undo->r_no_change = src->textSrc.undo->list->left;
1219     if (!src->textSrc.enable_undo || !src->textSrc.undo->num_undo)
1222     list = src->textSrc.undo->pointer;
1224     if (src->textSrc.undo->dir == XawsdLeft) {
1233     if (src->textSrc.undo->l_no_change == l_state
1234 	&& src->textSrc.undo->r_no_change == r_state)
1258     nlist->undo = src->textSrc.undo->list;
1261     if (list == src->textSrc.undo->list)
1262 	src->textSrc.undo->end_mark = nlist;
1264     if (src->textSrc.undo->dir == XawsdLeft) {
1265 	if (list->undo == NULL)
1266 	    src->textSrc.undo->dir = XawsdRight;
1268 	    list = list->undo;
1271 	if (list->redo == NULL || list->redo == src->textSrc.undo->end_mark)
1272 	    src->textSrc.undo->dir = XawsdLeft;
1277     src->textSrc.undo->pointer = list;
1278     src->textSrc.undo->list->redo = nlist;
1279     src->textSrc.undo->list = nlist;
1280     src->textSrc.undo->merge = src->textSrc.undo->erase = 0;
1282     if (++src->textSrc.undo->num_list >= UNDO_DEPTH)
1283 	UndoGC(src->textSrc.undo);
1291     if (!src->textSrc.enable_undo || !src->textSrc.undo->num_undo)
1294     if (src->textSrc.undo->pointer != src->textSrc.undo->list) {
1295 	if (src->textSrc.undo->dir == XawsdLeft) {
1296 	    if (src->textSrc.undo->pointer->redo
1297 		&& (src->textSrc.undo->pointer->redo
1298 		    != src->textSrc.undo->end_mark)) {
1299 		src->textSrc.undo->pointer = src->textSrc.undo->pointer->redo;
1300 		src->textSrc.undo->dir = XawsdRight;
1304 	    if (src->textSrc.undo->pointer->undo
1305 		&& (src->textSrc.undo->pointer != src->textSrc.undo->head)) {
1306 		src->textSrc.undo->pointer = src->textSrc.undo->pointer->undo;
1307 		src->textSrc.undo->dir = XawsdLeft;
1316 FreeUndoBuffer(XawTextUndo *undo)
1321     for (i = 0; i < undo->num_undo; i++) {
1322 	if (undo->undo[i]->buffer && undo->undo[i]->buffer != SrcNL &&
1323 	    undo->undo[i]->buffer != (char*)SrcWNL)
1324 	    XtFree(undo->undo[i]->buffer);
1325 	XtFree((char*)undo->undo[i]);
1327     XtFree((char*)undo->undo);
1328     head = undo->head;
1337     if (undo->l_save) {
1338 	XtFree((char*)undo->l_save);
1339 	undo->l_save = NULL;
1341     if (undo->r_save) {
1342 	XtFree((char*)undo->r_save);
1343 	undo->r_save = NULL;
1345     if (undo->u_save) {
1346 	XtFree((char*)undo->u_save);
1347 	undo->u_save = NULL;
1350     undo->list = undo->pointer = undo->head = undo->end_mark = NULL;
1351     undo->l_no_change = undo->r_no_change = NULL;
1352     undo->undo = NULL;
1353     undo->dir = XawsdLeft;
1354     undo->num_undo = undo->num_list = (unsigned)(undo->erase = undo->merge = 0);
1358 UndoGC(XawTextUndo *undo)
1360     XawTextUndoList *head = undo->head, *redo = head->redo;
1362     if (head == undo->pointer || head == undo->end_mark
1363 	|| undo->l_no_change == NULL
1364 	|| head->left == undo->l_no_change || head->right == undo->l_no_change)
1367     undo->head = redo;
1368     redo->undo = NULL;
1374 	for (i = 0; i < undo->num_undo; i+= 2)
1375 	    if (head->left == undo->undo[i] || head->left == undo->undo[i+1]) {
1376 		if (head->left == undo->undo[i+1]) {
1391 		undo->num_undo -= 2;
1392 		memmove(&undo->undo[i], &undo->undo[i + 2],
1393 			(undo->num_undo - i) * sizeof(XawTextUndoBuffer*));
1398     --undo->num_list;