/* Copyright (C) 2003-2015 LiveCode Ltd. This file is part of LiveCode. LiveCode is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License v3 as published by the Free Software Foundation. LiveCode is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with LiveCode. If not see . */ #include "prefix.h" #include "globdefs.h" #include "filedefs.h" #include "parsedef.h" #include "objdefs.h" #include "dispatch.h" #include "stack.h" #include "card.h" #include "cardlst.h" #include "util.h" #include "exec.h" #include "globals.h" MCCardnode::~MCCardnode() { } MCCardlist::MCCardlist() : first(nullptr) { cards = NULL; interval = 0; } MCCardlist::~MCCardlist() { while (cards != NULL) { MCCardnode *cptr = cards->remove (cards); delete cptr; } } void MCCardlist::trim() { // Check for and remove any dead cards from the list deletecard(nil); while (interval > MIN_FILL) { cards = cards->prev(); MCCardnode *cptr = cards->remove (cards); if (first == cptr) first = cards; delete cptr; interval--; } } bool MCCardlist::GetRecent(MCExecContext& ctxt, MCStack *stack, Properties which, MCStringRef& r_props) { // Get list of recent card short names or long ids trim(); MCCardnode *tmp = cards; MCAutoListRef t_prop_list; bool t_success; t_success = true; if (t_success) t_success = MCListCreateMutable('\n', &t_prop_list); if (t_success && tmp != NULL) { do { if (stack == NULL || tmp->card->getstack() == stack) { MCAutoStringRef t_property; if (which == P_SHORT_NAME) tmp -> card -> GetShortName(ctxt, &t_property); else tmp -> card -> GetLongId(ctxt, 0, &t_property); t_success = !ctxt . HasError(); if (t_success) t_success = MCListAppend(*t_prop_list, *t_property); } tmp = tmp->next(); } while (tmp != cards && t_success); } if (t_success) t_success = MCListCopyAsString(*t_prop_list, r_props); return t_success; } void MCCardlist::addcard(MCCard *card) { // Prune all dead cards from the recent list trim(); // If the recent list is not to be updated or this card is already at the // head of the list, do nothing. if ((cards != NULL && cards->card == card) || MClockrecent) return; MCCardnode *nptr = new (nothrow) MCCardnode; nptr->card = card; if (cards == NULL) first = nptr; nptr->insertto(cards); if (interval++ > MAX_FILL) trim(); } void MCCardlist::deletecard(MCCard *card) { MCCardnode *tmp = cards; Boolean restart; if (tmp != NULL) do { restart = False; if (!tmp->card.IsValid() || tmp->card == card) { if (tmp == first) first = tmp->next(); if (tmp == cards) { MCCardnode *tptr = cards->remove (cards); delete tptr; interval--; tmp = cards; if (cards == NULL) break; else restart = True; } else { MCCardnode *tptr = tmp->remove (tmp); delete tptr; interval--; } } else tmp = tmp->next(); } while (restart || tmp != cards); } void MCCardlist::deletestack(MCStack *stack) { MCCardnode *tmp = cards; Boolean restart; if (tmp != NULL) do { restart = False; if (!tmp->card.IsValid() || tmp->card->getstack() == stack) { if (tmp == first) first = tmp->next(); if (tmp == cards) { MCCardnode *tptr = cards->remove (cards); delete tptr; interval--; tmp = cards; if (cards == NULL) break; else restart = True; } else { MCCardnode *tptr = tmp->remove (tmp); delete tptr; interval--; } } else tmp = tmp->next(); } while (restart || tmp != cards); } void MCCardlist::gorel(int2 offset) { if (cards == NULL) return; if (offset > 0) while(offset--) cards = cards->prev(); else while(offset++) cards = cards->next(); MCStack *sptr = cards->card->getstack(); if (sptr != MCdefaultstackptr && MCdefaultstackptr->hcstack()) MCdefaultstackptr->close(); sptr->setcard(cards->card, False, False); sptr->openrect(sptr->getrect(), WM_LAST, NULL, WP_DEFAULT, OP_NONE); MCdefaultstackptr = sptr; } MCCard *MCCardlist::getrel(int2 offset) { if (cards == NULL) return NULL; MCCardnode *tptr = cards; if (offset > 0) while(offset--) tptr = tptr->prev(); else while(offset++) tptr = tptr->next(); return tptr->card; } void MCCardlist::godirect(Boolean start) { if (cards == NULL) return; if (start) cards = first; else cards = first->next(); MCStack *sptr = cards->card->getstack(); if (sptr != MCdefaultstackptr && MCdefaultstackptr->hcstack()) MCdefaultstackptr->close(); sptr->setcard(cards->card, False, False); sptr->openrect(sptr->getrect(), WM_LAST, NULL, WP_DEFAULT, OP_NONE); MCdefaultstackptr = sptr; } void MCCardlist::pushcard(MCCard *card) { if (card == NULL) return; MCCardnode *nptr = new (nothrow) MCCardnode; nptr->card = card; nptr->insertto(cards); } MCCard *MCCardlist::popcard() { if (cards != NULL) { MCCardnode *tptr = cards->remove (cards); MCCard *card = tptr->card; delete tptr; return card; } return MCdispatcher->gethome()->getcurcard(); }