Adding ability to switch language files at runtime to resolve #2743

* Removing .qm files from Windows build as they are inbuilt as of a7adfe2
* Moving translation change code to the OpenRGBSettingsPage
* Adding a changeEvent() to applicable Widgets to facilitate language updates
* Workaround added to TabLabel to accomodate translation context origin
* Added zh_TW locale to OpenRGB.pro
* Updated all translations to include the latest untranslated strings

Author: Chr1sNo

.gitlab-ci.yml

@@ -547,10 +547,6 @@ before_script:
   - Pop-Location
   - _fold_final_
 
-  - _fold_start_ 'Generate qm files'
-  - .\_qt\5.15.0\msvc2019\bin\lrelease OpenRGB.pro
-  - _fold_final_
-
   - _fold_start_ 'run qmake and generate the msvc nmake makefile'
   - mkdir _build; cd _build
   - ..\_qt\5.15.0\msvc2019\bin\qmake ..\OpenRGB.pro
@@ -627,10 +623,6 @@ before_script:
   - Pop-Location
   - _fold_final_
 
-  - _fold_start_ 'Generate qm files'
-  - .\_qt\5.15.0\msvc2019_64\bin\lrelease OpenRGB.pro
-  - _fold_final_
-
   - _fold_start_ 'run qmake and generate the msvc nmake makefile'
   - mkdir _build; cd _build
   - ..\_qt\5.15.0\msvc2019_64\bin\qmake ..\OpenRGB.pro

OpenRGB.pro

@@ -1263,15 +1263,16 @@ RESOURCES +=
     qt/resources.qrc                                                                            \
 
 TRANSLATIONS +=                                                                                 \
+    qt/i18n/OpenRGB_de.ts                                                                       \
     qt/i18n/OpenRGB_en.ts                                                                       \
     qt/i18n/OpenRGB_en_AU.ts                                                                    \
     qt/i18n/OpenRGB_en_GB.ts                                                                    \
-    qt/i18n/OpenRGB_de.ts                                                                       \
     qt/i18n/OpenRGB_es.ts                                                                       \
     qt/i18n/OpenRGB_fr.ts                                                                       \
     qt/i18n/OpenRGB_ru.ts                                                                       \
-    qt/i18n/OpenRGB_zh.ts                                                                       \
     qt/i18n/OpenRGB_pt_BR.ts                                                                    \
+    qt/i18n/OpenRGB_zh.ts                                                                       \
+    qt/i18n/OpenRGB_zh_TW.ts                                                                    \
 
 FORMS +=                                                                                        \
     qt/OpenRGBClientInfoPage.ui                                                                 \

main.cpp

@@ -18,7 +18,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <thread>
-#include <QTranslator>
 
 #ifdef _MACOSX_X86_X64
 #include "macUSPCIOAccess.h"
@@ -346,36 +345,6 @@ int main(int argc, char* argv[])
         QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
         QApplication a(argc, argv);
 
-        /*---------------------------------------------------------*\
-        | App translation                                           |
-        | To add a new language:                                    |
-        | Create a file under qt/i18n/OpenRGB_<locale>.ts           |
-        | Add it to TRANSLATIONS in OpenRGB.pro                     |
-        | Edit this file (manually or with                          |
-        |   linguist qt/i18n/OpenRGB_en.ts qt/i18n/OpenRGB_XX.ts    |
-        \*---------------------------------------------------------*/
-        QTranslator translator;
-
-        QLocale locale = QLocale(QLocale::system());
-        QLocale::setDefault(locale);
-
-        // For local tests without changing the PC locale, override this value.
-        //locale = QLocale(QLocale::French, QLocale::France);
-
-        a.removeTranslator(&translator);
-
-        QString path = ":/i18n/";
-
-        if(translator.load(path + QString("OpenRGB_%1.qm").arg(locale.name())))
-        {
-            a.installTranslator(&translator);
-            printf("Current Language changed to %s\n", locale.name().toStdString().c_str());
-        }
-        else
-        {
-            printf("Failed to load translation file for default locale '%s'\n", locale.name().toStdString().c_str());
-        }
-
         /*---------------------------------------------------------*\
         | Main UI widget                                            |
         \*---------------------------------------------------------*/

qt/OpenRGBClientInfoPage.cpp

@@ -50,6 +50,14 @@ OpenRGBClientInfoPage::~OpenRGBClientInfoPage()
 
 }
 
+void OpenRGBClientInfoPage::changeEvent(QEvent *event)
+{
+    if(event->type() == QEvent::LanguageChange)
+    {
+        ui->retranslateUi(this);
+    }
+}
+
 void OpenRGBClientInfoPage::AddClient(NetworkClient* new_client)
 {
     /*-----------------------------------------------------*\
@@ -82,7 +90,6 @@ void OpenRGBClientInfoPage::UpdateInfo()
     ui->ClientTree->setColumnWidth(1, 100);
     ui->ClientTree->setColumnWidth(2, 100);
     ui->ClientTree->setColumnWidth(3, 100);
-    ui->ClientTree->setHeaderLabels(QStringList() << tr("Connected Clients") << tr("Protocol Version") << tr("Save Connection") << "");
 
     /*-----------------------------------------------------*\
     | Set up a signal mapper to handle disconnect buttons   |

qt/OpenRGBClientInfoPage.h

@@ -24,6 +24,7 @@ public slots:
     void UpdateInfo();
 
 private slots:
+    void changeEvent(QEvent *event);
     void on_ClientConnectButton_clicked();
     void onClientDisconnectButton_clicked(QObject * arg);
     void onClientSaveCheckBox_clicked(QObject * arg);

qt/OpenRGBClientInfoPage.ui

@@ -64,8 +64,28 @@
    <item row="1" column="3" colspan="6">
     <widget class="QTreeWidget" name="ClientTree">
      <property name="columnCount">
-      <number>0</number>
+      <number>4</number>
      </property>
+     <column>
+      <property name="text">
+       <string>Connected Clients</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string>Protocol Version</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string>Save Connection</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string/>
+      </property>
+     </column>
     </widget>
    </item>
   </layout>

qt/OpenRGBConsolePage.cpp

@@ -73,3 +73,11 @@ OpenRGBConsolePage::~OpenRGBConsolePage()
 {
     delete ui;
 }
+
+void OpenRGBConsolePage::changeEvent(QEvent *event)
+{
+    if(event->type() == QEvent::LanguageChange)
+    {
+        ui->retranslateUi(this);
+    }
+}

qt/OpenRGBConsolePage.h

@@ -17,6 +17,7 @@ class Ui::OpenRGBConsolePage : public QFrame
     ~OpenRGBConsolePage();
 
 private slots:
+    void changeEvent(QEvent *event);
     void on_log_level_currentIndexChanged(int);
     void on_clear_clicked();
     void on_refresh_clicked();

qt/OpenRGBDeviceInfoPage.cpp

@@ -25,6 +25,14 @@ OpenRGBDeviceInfoPage::~OpenRGBDeviceInfoPage()
     delete ui;
 }
 
+void OpenRGBDeviceInfoPage::changeEvent(QEvent *event)
+{
+    if(event->type() == QEvent::LanguageChange)
+    {
+        ui->retranslateUi(this);
+    }
+}
+
 RGBController* OpenRGBDeviceInfoPage::GetController()
 {
     return controller;

qt/OpenRGBDeviceInfoPage.h

@@ -22,6 +22,9 @@ class Ui::OpenRGBDeviceInfoPage : public QFrame
 private:
     RGBController*                  controller;
     Ui::OpenRGBDeviceInfoPageUi*    ui;
+
+private slots:
+    void changeEvent(QEvent *event);
 };
 
 #endif // OPENRGBDEVICEINFOPAGE_H