scummvm/engines/kyra/gui/gui.cpp
2023-08-25 13:37:49 +02:00

137 lines
4.3 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 "kyra/gui/gui.h"
#include "kyra/kyra_v1.h"
#include "kyra/engine/util.h"
#include "common/savefile.h"
#include "common/system.h"
namespace Kyra {
GUI::GUI(KyraEngine_v1 *kyra) : _vm(kyra), _screen(kyra ? kyra->screen() : nullptr) {
_saveSlotsListUpdateNeeded = true;
_savegameListSize = 0;
_savegameList = nullptr;
}
GUI::~GUI() {
if (_savegameList) {
for (int i = 0; i < _savegameListSize; i++)
delete[] _savegameList[i];
delete[] _savegameList;
_savegameList = nullptr;
}
}
void GUI::updateSaveFileList(Common::String targetName, bool excludeQuickSaves) {
Common::String pattern = targetName + ".###";
Common::StringArray saveFileList = _vm->_saveFileMan->listSavefiles(pattern);
_saveSlots.clear();
for (Common::StringArray::const_iterator i = saveFileList.begin(); i != saveFileList.end(); ++i) {
// The last 3 digits of the filename correspond to the save slot.
const int slotNum = atoi(i->c_str() + i->size() - 3);
if (excludeQuickSaves && slotNum >= 990)
continue;
_saveSlots.push_back(slotNum);
}
if (_saveSlots.begin() == _saveSlots.end())
return;
sortSaveSlots();
}
void GUI::sortSaveSlots() {
Common::sort(_saveSlots.begin(), _saveSlots.end(), Common::Less<int>());
if (_saveSlots.size() > 2)
Common::sort(_saveSlots.begin() + 1, _saveSlots.end(), Common::Greater<int>());
}
int GUI::getNextSavegameSlot() {
Common::InSaveFile *in;
int start = _vm->game() == GI_LOL ? 0 : 1;
for (int i = start; i < 990; i++) {
if ((in = _vm->_saveFileMan->openForLoading(_vm->getSavegameFilename(i))))
delete in;
else
return i;
}
warning("Didn't save: Ran out of saveGame filenames");
return 0;
}
void GUI::updateSaveSlotsList(Common::String targetName, bool force) {
if (!_saveSlotsListUpdateNeeded && !force)
return;
_saveSlotsListUpdateNeeded = false;
if (_savegameList) {
for (int i = 0; i < _savegameListSize; i++)
delete[] _savegameList[i];
delete[] _savegameList;
}
updateSaveFileList(targetName, true);
int numSaves = _savegameListSize = _saveSlots.size();
bool allowEmptySlots = (_vm->game() == GI_EOB1 || _vm->game() == GI_EOB2);
if (_savegameListSize) {
if (allowEmptySlots)
_savegameListSize = 990;
KyraEngine_v1::SaveHeader header;
Common::InSaveFile *in;
_savegameList = new char*[_savegameListSize]();
for (int i = 0; i < numSaves; i++) {
in = _vm->openSaveForReading(_vm->getSavegameFilename(targetName, _saveSlots[i]).c_str(), header, targetName == _vm->_targetName);
char **listEntry = &_savegameList[allowEmptySlots ? _saveSlots[i] : i];
if (in) {
uint buffSize = header.description.size() + 1;
*listEntry = new char[buffSize];
Common::strlcpy(*listEntry, header.description.c_str(), buffSize);
// Ingame auto-generated Japanese EOB SegaCD savegame descriptions have a special 1-byte encoding that
// does not survive this conversion. And the rest of the characters in these descriptions do not require it.
if (!(_vm->gameFlags().platform == Common::kPlatformSegaCD && _vm->gameFlags().lang == Common::JA_JPN && Common::String(*listEntry).contains('\r')))
Util::convertString_GUItoKYRA(*listEntry, buffSize,
_vm->gameFlags().lang == Common::ZH_TWN ? Common::CodePage::kBig5 : Common::CodePage::kDos850);
delete in;
} else {
*listEntry = nullptr;
error("GUI::updateSavegameList(): Unexpected missing save file for slot: %d.", _saveSlots[i]);
}
}
} else {
_savegameList = nullptr;
}
}
} // End of namespace Kyra