feat(util): add dpinyin

Change-Id: I34e1a9584085ed738e7d208e59e6972bed25fb5f

src/util/DPinyin

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+#include "dpinyin.h"

src/util/README.dpinyin

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+Name: chinese_pinyin
+Version: 1.0.1
+Author: flyerhzm
+License: MIT License
+Home: https://github.com/flyerhzm/chinese_pinyin
+Description: translate chinese hanzi to pinyin

src/util/dpinyin.h

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+/*
+ * Copyright (C) 2017 ~ 2017 Deepin Technology Co., Ltd.
+ *
+ * Author:     kirigaya <kirigaya@mkacg.com>
+ * 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
+ * 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/>.
+ *
+ * pinyin.dict from https://github.com/flyerhzm/chinese_pinyin
+ */
+
+#ifndef DPINYIN_H
+#define DPINYIN_H
+
+#include "dtkcore_global.h"
+
+#include <QHash>
+
+DCORE_BEGIN_NAMESPACE
+
+static QHash<uint, QString> dict = {};
+
+const char kDictFile[] = ":/dpinyin/resources/dpinyin.dict";
+
+void InitDict() {
+    if (!dict.isEmpty()) {
+        return;
+    }
+
+    dict.reserve(25333);
+
+    QFile file(kDictFile);
+
+    if (!file.open(QIODevice::ReadOnly))
+        return;
+
+    QByteArray content = file.readAll();
+
+    file.close();
+
+    QTextStream stream(&content, QIODevice::ReadOnly);
+
+    while (!stream.atEnd()) {
+        const QString line = stream.readLine();
+        const QStringList items = line.split(QChar(':'));
+
+        if (items.size() == 2) {
+            dict.insert(items[0].toInt(nullptr, 16), items[1]);
+        }
+    }
+}
+
+QString Chinese2Pinyin(const QString& words) {
+    InitDict();
+
+    QString result;
+
+    for (int i = 0; i < words.length(); ++i) {
+        const uint key = words.at(i).unicode();
+        auto find_result = dict.find(key);
+
+        if (find_result != dict.end()) {
+            result.append(find_result.value());
+        } else {
+            result.append(words.at(i));
+        }
+    }
+
+    return result;
+}
+
+DCORE_END_NAMESPACE
+
+#endif // DPINYIN_H