A new multilingual solution

DSView/pv/ui/langresource.cpp

@@ -0,0 +1,184 @@
+/*
+ * This file is part of the DSView project.
+ * DSView is based on PulseView.
+ *
+ * Copyright (C) 2022 DreamSourceLab <support@dreamsourcelab.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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include "langresource.h"
+#include <stddef.h>
+#include "../log.h"
+#include "../config/appconfig.h"
+#include <QFile>
+#include <QByteArray>
+#include <QJsonParseError>
+#include <QJsonValue>
+#include <QJsonArray>
+#include <QJsonObject>
+#include <assert.h>
+
+//---------------Lang_resource_page
+
+void Lang_resource_page::Clear()
+{
+    _res.clear();
+}
+
+//---------------LangResource
+
+LangResource::LangResource()
+{
+    _current_page = NULL;
+}
+
+LangResource *LangResource::Instance()
+{
+    static LangResource *ins = NULL;
+
+    if (ins == NULL)
+    {
+        ins = new LangResource();
+    }
+
+    return ins;
+}
+
+const char *LangResource::get_lang_key(int lang)
+{
+    int num = sizeof(lang_id_keys) / sizeof(lang_key_item);
+    char *lan_name = NULL;
+
+    for (int i = 0; i < num; i++)
+    {
+        if (lang_id_keys[i].id == lang)
+        {
+            lan_name = lang_id_keys[i].name;
+            break;
+        }
+    }
+
+    return lan_name;
+}
+
+bool LangResource::Load(int lang)
+{
+    int num = sizeof(lang_id_keys) / sizeof(lang_key_item);
+    const char *lan_name = get_lang_key(lang);
+
+    if (lan_name == NULL)
+    {
+        dsv_err("Can't find language key,lang:%d", lang);
+        return false;
+    }
+
+    Release();
+
+    num = sizeof(lange_page_keys) / sizeof(lang_page_item);
+
+    for (int i = 0; i < num; i++)
+    { 
+        Lang_resource_page *p = new Lang_resource_page();
+        p->_id = lange_page_keys[i].id;
+        p->_source = lange_page_keys[i].source;
+        _pages.push_back(p);
+
+        QString file = GetAppDataDir() + "/lang/" + QString(lan_name) + "/" + p->_source;
+        load_page(*p, file);
+    }
+
+    return false;
+}
+
+void LangResource::Release()
+{
+    for (Lang_resource_page *p : _pages)
+    {
+        p->Clear();
+        delete p;
+    }
+    _pages.clear();
+}
+
+void LangResource::load_page(Lang_resource_page &p, QString file)
+{ 
+    QFile f(file);
+    if (f.exists() == false){
+        dsv_warn("Warning:Language source file is not exists: %s", file.toLocal8Bit().data());
+        return;
+    }
+    f.open(QFile::ReadOnly | QFile::Text);
+    QByteArray raw_bytes = f.readAll();
+    f.close();
+
+    if (raw_bytes.length() == 0)
+        return;
+
+    QJsonParseError error;
+    QString jsonStr(raw_bytes.data());
+    QByteArray qbs = jsonStr.toUtf8();
+    QJsonDocument doc = QJsonDocument::fromJson(qbs, &error);
+
+    if (error.error != QJsonParseError::NoError)
+    {
+        QString estr = error.errorString();
+        dsv_err("LangResource::load_page(), parse json error:\"%s\"!", estr.toUtf8().data());
+        return;
+    }
+
+    QJsonArray jarray = doc.array();
+
+    for (const QJsonValue &dec_value : jarray)
+    {
+        QJsonObject obj = dec_value.toObject();
+
+        if (obj.contains("id") && obj.contains("text")){
+            QString id = obj["id"].toString().trimmed();
+            QString text = obj["text"].toString().trimmed();
+            p._res[id.toStdString()] = text.toStdString();
+        }
+    }
+}
+
+const char* LangResource::get_lang_text(int page_id, const char *str_id, const char *default_str)
+{
+    assert(str_id);
+
+    if (_current_page == NULL || _current_page->_id != page_id){
+        _current_page = NULL; 
+        for (Lang_resource_page *p : _pages){
+            if (p->_id == page_id){
+                _current_page = p;
+                break;
+            }
+        }
+    }
+
+    if (_current_page == NULL){
+        dsv_warn("Warning:Cant find language source page:%d", page_id);
+        return default_str;
+    }
+
+    auto it = _current_page->_res.find(std::string(str_id));
+    if (it != _current_page->_res.end()){
+        return (*it).second.c_str();
+    }
+    else{
+        dsv_warn("Warning:Cant't get language text:%s", str_id);
+    }
+
+    return default_str;
+}

DSView/pv/ui/langresource.h

@@ -0,0 +1,91 @@
+/*
+ * This file is part of the DSView project.
+ * DSView is based on PulseView.
+ *
+ * Copyright (C) 2022 DreamSourceLab <support@dreamsourcelab.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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#ifndef LANG_RESOURCE_H
+#define LANG_RESOURCE_H
+
+#include <map>
+#include <vector>
+#include <QString>
+#include "string_ids.h"
+
+struct lang_key_item
+{
+    int id;
+    char *name;
+};
+
+class Lang_resource_page
+{
+public:
+    void Clear();
+
+public:
+    int     _id;
+    char    *_source;
+    std::map<std::string, std::string> _res;
+};
+
+struct lang_page_item
+{
+    int id;
+    char *source;
+};
+
+static const struct lang_key_item lang_id_keys[] = 
+{
+    {25, "cn"},
+    {31, "en"}
+};
+
+static const struct lang_page_item lange_page_keys[] = 
+{
+    {STR_PAGE_MAIN, "main.json"},
+    {STR_PAGE_TOOLBAR, "toolbar.json"},
+    {STR_PAGE_MSG, "msg.json"},
+    {STR_PAGE_DEVICE, "device.json"},
+};
+
+class LangResource
+{
+private:
+    LangResource();
+
+public:
+    static LangResource* Instance();
+    bool Load(int lang);
+    void Release();
+    const char* get_lang_text(int page_id, const char *str_id, const char *default_str);
+
+private:
+    const char *get_lang_key(int lang);
+
+    void load_page(Lang_resource_page &p, QString file);
+
+private:
+    std::vector<Lang_resource_page*> _pages;
+    Lang_resource_page    *_current_page;
+};
+
+#define S_ID(id) #id
+#define L_S(pid,sid,dv) (LangResource::Instance()->get_lang_text((pid), (sid), (dv)))
+
+#endif

DSView/pv/ui/string_ids.h

@@ -0,0 +1,39 @@
+/*
+ * This file is part of the DSView project.
+ * DSView is based on PulseView.
+ *
+ * Copyright (C) 2022 DreamSourceLab <support@dreamsourcelab.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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#ifndef STRING_IDS_H
+#define STRING_IDS_H
+
+#define     STR_PAGE_MAIN       1
+#define     STR_PAGE_MSG        2
+#define     STR_PAGE_DEVICE     3
+#define     STR_PAGE_TOOLBAR    4
+
+#define IDS_TOOLBAR_MODE
+#define IDS_TOOLBAR_START
+#define IDS_TOOLBAR_STOP
+#define IDS_TOOLBAR_SINGLE
+#define IDS_TOOLBAR_INSTANT
+#define IDS_TOOLBAR_SINGLE_ACTION
+#define IDS_TOOLBAR_REPEAT_ACTION
+#define IDS_TOOLBAR_OPTIONS
+
+#endif

lang/en/device.json

@@ -0,0 +1,10 @@
+[
+    {
+        "id": "vvv",
+        "text": "xxx"
+    },
+    {
+        "id": "vvv1",
+        "text": "xxx1"
+    }
+]

lang/en/main.json

@@ -0,0 +1,10 @@
+[
+    {
+        "id": "vvv",
+        "text": "xxx"
+    },
+    {
+        "id": "vvv1",
+        "text": "xxx1"
+    }
+]

lang/en/msg.json

@@ -0,0 +1,10 @@
+[
+    {
+        "id": "vvv",
+        "text": "xxx"
+    },
+    {
+        "id": "vvv1",
+        "text": "xxx1"
+    }
+]

lang/en/toolbar.json

@@ -0,0 +1,10 @@
+[
+    {
+        "id": "IDS_TOOLBAR_MODE",
+        "text": "模式1"
+    },
+    {
+        "id": "IDS_TOOLBAR_START",
+        "text": "Start"
+    }
+]