File indexing completed on 2024-12-08 06:28:23

 /*
     This file is part of Kiten, a KDE Japanese Reference Tool
     SPDX-FileCopyrightText: 2006 Joseph Kerian <jkerian@gmail.com>
     SPDX-FileCopyrightText: 2006 Eric Kjeldergaard <kjelderg@gmail.com>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "historyptrlist.h"
 
 #include "entrylist.h"
 
 #include <QList>
 
 class HistoryPtrList::Private
 {
 public:
     Private()
         : index(-1)
     {
     }
 
     static const int max_size = 20;
     int index;
     QList<EntryList *> list;
 };
 
 HistoryPtrList::HistoryPtrList()
     : d(new Private)
 {
 }
 
 HistoryPtrList::~HistoryPtrList()
 {
     for (int i = d->list.size() - 1; i >= 0; i--) {
         d->list.at(i)->deleteAll();
         delete d->list.at(i);
     }
 
     delete d;
 }
 
 void HistoryPtrList::addItem(EntryList *newItem)
 {
     if (!newItem)
         return;
     // If we're currently looking at something prior to the end of the list
     // Remove everything in the list up to this point.
     int currentPosition = d->index + 1;
     EntryList *temp;
     while (currentPosition < count()) {
         temp = d->list.takeLast();
         temp->deleteAll();
         delete temp;
     }
 
     // Now... check to make sure our history isn't 'fat'
     while (count() >= d->max_size) {
         temp = d->list.takeFirst();
         temp->deleteAll();
         delete temp;
     }
     d->index = count() - 1; // Since we have trimmed down to the current position
 
     // One other odd case... if this query is a repeat of the last query
     // replace the current one with the new one
     if (!d->list.empty()) {
         if (current()->getQuery() == newItem->getQuery()) {
             temp = d->list.takeLast();
             temp->deleteAll();
             delete temp;
         }
     }
     // Now add the item
     d->list.append(newItem);
     d->index = count() - 1;
 }
 
 int HistoryPtrList::count()
 {
     return d->list.size();
 }
 
 EntryList *HistoryPtrList::current()
 {
     if (d->index == -1) {
         return nullptr;
     }
 
     return d->list.at(d->index);
 }
 
 int HistoryPtrList::index()
 {
     return d->index;
 }
 
 void HistoryPtrList::next(int distance)
 {
     if (distance + d->index > count() - 1) {
         d->index = count() - 1;
     } else {
         d->index += distance;
     }
 }
 
 void HistoryPtrList::prev(int distance)
 {
     if (d->index - distance < 0) {
         d->index = 0;
     } else {
         d->index -= distance;
     }
 }
 
 void HistoryPtrList::setCurrent(int i)
 {
     if (i < count() && i >= 0) {
         d->index = i;
     }
 }
 
 // Get a StringList of the History Items
 QStringList HistoryPtrList::toStringList()
 {
     QStringList result;
 
     for (const EntryList *p : d->list) {
         result.append(p->getQuery().toString());
     }
 
     return result;
 }
 
 QStringList HistoryPtrList::toStringListNext()
 {
     HistoryPtrList localCopy(*this);
 
     int currentPosition = d->index + 1;
     while (currentPosition--) {
         localCopy.d->list.removeFirst();
     }
 
     return localCopy.toStringList();
 }
 
 QStringList HistoryPtrList::toStringListPrev()
 {
     QStringList result;
 
     for (int i = 0; i < d->index; i++) {
         result.append(d->list.at(i)->getQuery().toString());
     }
 
     return result;
 }