scummvm/engines/bladerunner/ui/kia_log.cpp
2021-12-26 18:48:43 +01:00

127 lines
3 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "bladerunner/ui/kia_log.h"
#include "bladerunner/bladerunner.h"
namespace BladeRunner {
KIALog::KIALog(BladeRunnerEngine *vm) {
_vm = vm;
_firstIndex = 0;
_lastIndex = 0;
_currentIndex = 0;
for (int i = 0; i < kSize; ++i) {
_entries[i].dataSize = 0;
_entries[i].data = nullptr;
}
}
KIALog::~KIALog() {
clear();
}
void KIALog::add(int type, int dataSize, const void *data) {
if (_currentIndex == _lastIndex) {
_lastIndex = (_lastIndex + 1) % kSize;
}
if (_entries[_currentIndex].data) {
delete[] _entries[_currentIndex].data;
}
_entries[_currentIndex].type = type;
_entries[_currentIndex].dataSize = dataSize;
if (dataSize > 0) {
unsigned char *dataCopy = new unsigned char[dataSize];
memcpy(dataCopy, data, dataSize);
_entries[_currentIndex].data = dataCopy;
} else {
_entries[_currentIndex].data = nullptr;
}
}
void KIALog::clear() {
_firstIndex = 0;
_lastIndex = 0;
_currentIndex = 0;
for (int i = 0; i < kSize; ++i) {
if (_entries[i].data) {
delete[] _entries[i].data;
}
_entries[i].dataSize = 0;
_entries[i].data = nullptr;
}
}
void KIALog::prev() {
if (_currentIndex != _firstIndex) {
_currentIndex = (_currentIndex - 1) % kSize;
}
}
void KIALog::next() {
if (_currentIndex != _lastIndex) {
_currentIndex = (_currentIndex + 1) % kSize;
}
}
void KIALog::clearFuture() {
_lastIndex = _currentIndex;
int currentIndex = _currentIndex;
while (currentIndex != _firstIndex) {
if (_entries[currentIndex].data) {
delete[] _entries[currentIndex].data;
_entries[currentIndex].data = nullptr;
_entries[currentIndex].dataSize = 0;
}
currentIndex = (currentIndex + 1) % kSize;
}
}
bool KIALog::hasPrev() const {
return _currentIndex != _firstIndex;
}
bool KIALog::hasNext() const {
if (_currentIndex == _lastIndex) {
return false;
}
return (((_currentIndex + 1) % kSize) != _lastIndex);
}
int KIALog::getPrevType() const {
return _entries[(_currentIndex - 1) % kSize].type;
}
int KIALog::getNextType() const {
return _entries[(_currentIndex + 1) % kSize].type;
}
const void *KIALog::getCurrentData() const {
return _entries[_currentIndex].data;
}
} // End of namespace BladeRunner