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/*
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;
}
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