Initial commit

engines/bladerunner/ui/kia_log.cpp

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+/* 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