Help user to select default GUI language.

ChangeLog.txt

@@ -15,6 +15,7 @@
 - Fix reading tiled page margins in console mode.
 - Fix handling numeric values passed in console mode.
 - Add Don't ask again for Stale layout question dialog.
+- Help user to select default GUI language.
 
 # Valentina 0.7.49 July 1, 2021
 - Fix crash.

src/app/puzzle/vpmainwindow.cpp

@@ -37,6 +37,7 @@
 #include <QPrinterInfo>
 #include <QPrintDialog>
 #include <QPrintPreviewDialog>
+#include <QTimer>
 
 #include "ui_vpmainwindow.h"
 #include "dialogs/vpdialogabout.h"
@@ -59,6 +60,7 @@
 #include "undocommands/vpundopiecemove.h"
 #include "dialogs/dialogsavemanuallayout.h"
 #include "../vdxf/libdxfrw/drw_base.h"
+#include "../vmisc/dialogs/dialogselectlanguage.h"
 
 #if QT_VERSION < QT_VERSION_CHECK(5, 12, 0)
 #include "../vmisc/backport/qscopeguard.h"
@@ -383,6 +385,11 @@ VPMainWindow::VPMainWindow(const VPCommandLinePtr &cmd, QWidget *parent) :
     });
 
     m_graphicsView->RefreshLayout();
+
+    if (m_cmd->IsGuiEnabled())
+    {
+        QTimer::singleShot(1000, this, &VPMainWindow::SetDefaultGUILanguage);
+    }
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -4513,6 +4520,28 @@ void VPMainWindow::RemoveWatermark()
     }
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void VPMainWindow::SetDefaultGUILanguage()
+{
+    if (m_cmd->IsGuiEnabled())
+    {
+        auto *settings = VPApplication::VApp()->PuzzleSettings();
+        if (not settings->IsLocaleSelected())
+        {
+            QGuiApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
+            DialogSelectLanguage dialog(this);
+            QGuiApplication::restoreOverrideCursor();
+            dialog.setWindowModality(Qt::WindowModal);
+            if (dialog.exec() == QDialog::Accepted)
+            {
+                QString locale = dialog.Locale();
+                settings->SetLocale(locale);
+                VAbstractApplication::VApp()->LoadTranslation(locale);
+            }
+        }
+    }
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 #if defined(Q_OS_MAC)
 void VPMainWindow::AboutToShowDockMenu()

src/app/puzzle/vpmainwindow.h

@@ -289,6 +289,8 @@ private slots:
     void AboutToShowDockMenu();
 #endif //defined(Q_OS_MAC)
 
+    void SetDefaultGUILanguage();
+
 private:
     Q_DISABLE_COPY(VPMainWindow)
     Ui::VPMainWindow *ui;

src/app/tape/tmainwindow.cpp

@@ -52,6 +52,7 @@
 #include "../qmuparser/qmudef.h"
 #include "../vtools/dialogs/support/dialogeditwrongformula.h"
 #include "version.h"
+#include "../vmisc/dialogs/dialogselectlanguage.h"
 #include "mapplication.h" // Should be last because of definning qApp
 
 #if QT_VERSION < QT_VERSION_CHECK(5, 12, 0)
@@ -148,6 +149,11 @@ TMainWindow::TMainWindow(QWidget *parent)
     AboutToShowDockMenu();
     menu->setAsDockMenu();
 #endif //defined(Q_OS_MAC)
+
+    if (MApplication::VApp()->IsAppInGUIMode())
+    {
+        QTimer::singleShot(1000, this, &TMainWindow::SetDefaultGUILanguage);
+    }
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -2307,6 +2313,28 @@ void TMainWindow::EditDimensionLabels()
     InitDimensionControls();
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void TMainWindow::SetDefaultGUILanguage()
+{
+    if (MApplication::VApp()->IsAppInGUIMode())
+    {
+        VTapeSettings *settings = MApplication::VApp()->TapeSettings();
+        if (not settings->IsLocaleSelected())
+        {
+            QGuiApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
+            DialogSelectLanguage dialog(this);
+            QGuiApplication::restoreOverrideCursor();
+            dialog.setWindowModality(Qt::WindowModal);
+            if (dialog.exec() == QDialog::Accepted)
+            {
+                QString locale = dialog.Locale();
+                settings->SetLocale(locale);
+                VAbstractApplication::VApp()->LoadTranslation(locale);
+            }
+        }
+    }
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void TMainWindow::SetupMenu()
 {

src/app/tape/tmainwindow.h

@@ -145,6 +145,8 @@ private slots:
 
     void EditDimensionLabels();
 
+    void SetDefaultGUILanguage();
+
 private:
     Q_DISABLE_COPY(TMainWindow)
     Ui::TMainWindow *ui;

src/app/valentina/mainwindow.cpp

@@ -70,6 +70,7 @@
 #include "../vlayout/vlayoutexporter.h"
 #include "../vwidgets/vgraphicssimpletextitem.h"
 #include "../vlayout/dialogs/dialoglayoutscale.h"
+#include "../vmisc/dialogs/dialogselectlanguage.h"
 
 #if QT_VERSION < QT_VERSION_CHECK(5, 12, 0)
 #include "../vmisc/backport/qscopeguard.h"
@@ -376,6 +377,11 @@ MainWindow::MainWindow(QWidget *parent)
             ClearPatternMessages();
         }
     });
+
+    if (VApplication::VApp()->IsGUIMode())
+    {
+        QTimer::singleShot(1000, this, &MainWindow::SetDefaultGUILanguage);
+    }
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -4162,6 +4168,27 @@ void MainWindow::ClearPatternMessages()
     }
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void MainWindow::SetDefaultGUILanguage()
+{
+    if (VApplication::VApp()->IsGUIMode())
+    {
+        VValentinaSettings *settings = VAbstractValApplication::VApp()->ValentinaSettings();
+        if (not settings->IsLocaleSelected())
+        {
+            QGuiApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
+            DialogSelectLanguage dialog(this);
+            QGuiApplication::restoreOverrideCursor();
+            if (dialog.exec() == QDialog::Accepted)
+            {
+                QString locale = dialog.Locale();
+                settings->SetLocale(locale);
+                VAbstractApplication::VApp()->LoadTranslation(locale);
+            }
+        }
+    }
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void MainWindow::InitDimensionControls()
 {

src/app/valentina/mainwindow.h

@@ -224,6 +224,8 @@ private slots:
     void ShowProgress();
     void ClearPatternMessages();
 
+    void SetDefaultGUILanguage();
+
 private:
     Q_DISABLE_COPY(MainWindow)
     /** @brief ui keeps information about user interface */

src/libs/vmisc/dialogs/dialogselectlanguage.cpp

@@ -0,0 +1,52 @@
+/************************************************************************
+ **
+ **  @file   dialogselectlanguage.cpp
+ **  @author Roman Telezhynskyi <dismine(at)gmail.com>
+ **  @date   19 10, 2021
+ **
+ **  @brief
+ **  @copyright
+ **  This source code is part of the Valentina project, a pattern making
+ **  program, whose allow create and modeling patterns of clothing.
+ **  Copyright (C) 2021 Valentina project
+ **  <https://gitlab.com/smart-pattern/valentina> All Rights Reserved.
+ **
+ **  Valentina 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.
+ **
+ **  Valentina 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 Valentina.  If not, see <http://www.gnu.org/licenses/>.
+ **
+ *************************************************************************/
+#include "dialogselectlanguage.h"
+#include "ui_dialogselectlanguage.h"
+#include "../vmisc/def.h"
+
+//---------------------------------------------------------------------------------------------------------------------
+DialogSelectLanguage::DialogSelectLanguage(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::DialogSelectLanguage)
+{
+    ui->setupUi(this);
+
+    InitLanguages(ui->comboBoxLanguage);
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+DialogSelectLanguage::~DialogSelectLanguage()
+{
+    delete ui;
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+QString DialogSelectLanguage::Locale() const
+{
+    return qvariant_cast<QString>(ui->comboBoxLanguage->currentData());
+}

src/libs/vmisc/dialogs/dialogselectlanguage.h

@@ -0,0 +1,53 @@
+/************************************************************************
+ **
+ **  @file   dialogselectlanguage.h
+ **  @author Roman Telezhynskyi <dismine(at)gmail.com>
+ **  @date   19 10, 2021
+ **
+ **  @brief
+ **  @copyright
+ **  This source code is part of the Valentina project, a pattern making
+ **  program, whose allow create and modeling patterns of clothing.
+ **  Copyright (C) 2021 Valentina project
+ **  <https://gitlab.com/smart-pattern/valentina> All Rights Reserved.
+ **
+ **  Valentina 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.
+ **
+ **  Valentina 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 Valentina.  If not, see <http://www.gnu.org/licenses/>.
+ **
+ *************************************************************************/
+#ifndef DIALOGSELECTLANGUAGE_H
+#define DIALOGSELECTLANGUAGE_H
+
+#include <QDialog>
+
+namespace Ui
+{
+class DialogSelectLanguage;
+}
+
+class DialogSelectLanguage : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit DialogSelectLanguage(QWidget *parent = nullptr);
+    ~DialogSelectLanguage();
+
+    QString Locale() const;
+
+private:
+    Q_DISABLE_COPY(DialogSelectLanguage)
+    Ui::DialogSelectLanguage *ui;
+};
+
+#endif // DIALOGSELECTLANGUAGE_H

src/libs/vmisc/dialogs/dialogselectlanguage.ui

@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>DialogSelectLanguage</class>
+ <widget class="QDialog" name="DialogSelectLanguage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>224</width>
+    <height>99</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Select language</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../share/resources/icon.qrc">
+    <normaloff>:/icon/64x64/icon64x64.png</normaloff>:/icon/64x64/icon64x64.png</iconset>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QLabel" name="label">
+     <property name="text">
+      <string>Select user interface language</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QLabel" name="label_2">
+       <property name="text">
+        <string>Language:</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QComboBox" name="comboBoxLanguage"/>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../share/resources/icon.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>DialogSelectLanguage</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>DialogSelectLanguage</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

src/libs/vmisc/vcommonsettings.cpp

@@ -534,6 +534,15 @@ void VCommonSettings::SetAutosaveTime(const int &value)
     setValue(*settingConfigurationAutosaveTime, value);
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+auto VCommonSettings::IsLocaleSelected() const -> bool
+{
+    const QString fakeLocale = QStringLiteral("Fake");
+    QString locale = value(*settingConfigurationLocale, fakeLocale).toString();
+
+    return locale != fakeLocale;
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 QString VCommonSettings::GetLocale() const
 {

src/libs/vmisc/vcommonsettings.h

@@ -93,6 +93,7 @@ public:
     int  GetAutosaveTime() const;
     void SetAutosaveTime(const int &value);
 
+    bool IsLocaleSelected() const;
     QString GetLocale() const;
     void SetLocale(const QString &value);
 

src/libs/vmisc/vmisc.pri

@@ -14,7 +14,8 @@ SOURCES += \
     $$PWD/vtablesearch.cpp \
     $$PWD/dialogs/dialogexporttocsv.cpp \
     $$PWD/literals.cpp \
-    $$PWD/vmodifierkey.cpp
+    $$PWD/vmodifierkey.cpp \
+    $$PWD/dialogs/dialogselectlanguage.cpp
 
 *msvc*:SOURCES += $$PWD/stable.cpp
 
@@ -52,7 +53,8 @@ HEADERS += \
     $$PWD/vdatastreamenum.h \
     $$PWD/vmodifierkey.h \
     $$PWD/typedef.h \
-    $$PWD/backport/qscopeguard.h
+    $$PWD/backport/qscopeguard.h \
+    $$PWD/dialogs/dialogselectlanguage.h
 
 contains(DEFINES, APPIMAGE) {
     SOURCES += \
@@ -72,4 +74,5 @@ contains(QT_VERSION, ^5\\.[0-2]\\.[0-2]$) { # Since Qt 5.3.0
 }
 
 FORMS    += \
-    $$PWD/dialogs/dialogexporttocsv.ui
+    $$PWD/dialogs/dialogexporttocsv.ui \
+    $$PWD/dialogs/dialogselectlanguage.ui