gui: Update about logo icon to denote chain type

Adding the networkStyle parameter to the HelpMessageDialog
creator on utilitydialog, updating all calls where its instance
is being created from bitcoingui.cpp. In the object itself,
use this new parameter object to build the about window title and
set the icon of the about logo widget.

Also, set th correct chain type icon at the very beginning of
GuiMain() where command line arguments were validated and most of
the app settings were not initialised yet.

src/qt/bitcoin.cpp

@@ -539,11 +539,17 @@ int GuiMain(int argc, char* argv[])
     SetupUIArgs(gArgs);
     std::string error;
     if (!gArgs.ParseParameters(argc, argv, error)) {
+        int nMBoxIcon = QMessageBox::Critical;
         InitError(strprintf(Untranslated("Error parsing command line arguments: %s"), error));
         // Create a message box, because the gui has neither been created nor has subscribed to core signals
-        QMessageBox::critical(nullptr, PACKAGE_NAME,
+        QMessageBox mBox(static_cast<QMessageBox::Icon>(nMBoxIcon), PACKAGE_NAME,
             // message cannot be translated because translations have not been initialized
             QString::fromStdString("Error parsing command line arguments: %1.").arg(QString::fromStdString(error)));
+        mBox.setTextFormat(Qt::PlainText);
+        if (gArgs.GetChainTypeString() != "main") {
+            mBox.setWindowIcon(NetworkStyle::instantiate(gArgs.GetChainType())->getTrayAndWindowIcon());
+        }
+        mBox.exec();
         return EXIT_FAILURE;
     }
 

src/qt/bitcoingui.cpp

@@ -103,7 +103,7 @@ BitcoinGUI::BitcoinGUI(interfaces::Node& node, const PlatformStyle *_platformSty
     updateWindowTitle();
 
     rpcConsole = new RPCConsole(node, _platformStyle, nullptr);
-    helpMessageDialog = new HelpMessageDialog(this, false);
+    helpMessageDialog = new HelpMessageDialog(this, false, m_network_style);
 #ifdef ENABLE_WALLET
     if(enableWallet)
     {
@@ -920,7 +920,7 @@ void BitcoinGUI::aboutClicked()
     if(!clientModel)
         return;
 
-    auto dlg = new HelpMessageDialog(this, /*about=*/true);
+    auto dlg = new HelpMessageDialog(this, /*about=*/true, m_network_style);
     GUIUtil::ShowModalDialogAsynchronously(dlg);
 }
 

src/qt/utilitydialog.cpp

@@ -12,6 +12,8 @@
 
 #include <qt/guiutil.h>
 
+#include <qt/networkstyle.h>
+
 #include <clientversion.h>
 #include <common/args.h>
 #include <init.h>
@@ -29,7 +31,7 @@
 #include <QVBoxLayout>
 
 /** "Help message" or "About" dialog box */
-HelpMessageDialog::HelpMessageDialog(QWidget *parent, bool about) :
+HelpMessageDialog::HelpMessageDialog(QWidget* parent, bool about, const NetworkStyle* networkStyle) :
     QDialog(parent, GUIUtil::dialog_flags),
     ui(new Ui::HelpMessageDialog)
 {
@@ -39,8 +41,8 @@ HelpMessageDialog::HelpMessageDialog(QWidget *parent, bool about) :
 
     if (about)
     {
-        setWindowTitle(tr("About %1").arg(PACKAGE_NAME));
-
+        this->setAboutWindowTitle(networkStyle);
+        this->setChainTypeIconOnAboutLogo(networkStyle);
         std::string licenseInfo = LicenseInfo();
         /// HTML-format the license message from the core
         QString licenseInfoHTML = QString::fromStdString(LicenseInfo());
@@ -135,6 +137,21 @@ void HelpMessageDialog::on_okButton_accepted()
     close();
 }
 
+void HelpMessageDialog::setAboutWindowTitle(const NetworkStyle* networkStyle)
+{
+    QString aboutTitle = tr("About %1").arg(PACKAGE_NAME);
+    if (networkStyle && Params().GetChainType() != ChainType::MAIN) {
+        aboutTitle.append(" " + networkStyle->getTitleAddText());
+    }
+    setWindowTitle(aboutTitle);
+}
+
+void HelpMessageDialog::setChainTypeIconOnAboutLogo(const NetworkStyle* networkStyle)
+{
+    const QSize requiredSize(1024, 1024);
+    if (networkStyle) ui->aboutLogo->setPixmap(networkStyle->getAppIcon().pixmap(requiredSize));
+}
+
 
 /** "Shutdown" window */
 ShutdownWindow::ShutdownWindow(QWidget *parent, Qt::WindowFlags f):

src/qt/utilitydialog.h

@@ -8,6 +8,8 @@
 #include <QDialog>
 #include <QWidget>
 
+class NetworkStyle;
+
 QT_BEGIN_NAMESPACE
 class QMainWindow;
 QT_END_NAMESPACE
@@ -22,7 +24,7 @@ class HelpMessageDialog : public QDialog
     Q_OBJECT
 
 public:
-    explicit HelpMessageDialog(QWidget *parent, bool about);
+    explicit HelpMessageDialog(QWidget* parent, bool about, const NetworkStyle* networkStyle = nullptr);
     ~HelpMessageDialog();
 
     void printToConsole();
@@ -31,6 +33,8 @@ class HelpMessageDialog : public QDialog
 private:
     Ui::HelpMessageDialog *ui;
     QString text;
+    void setAboutWindowTitle(const NetworkStyle* networkStyle = nullptr);
+    void setChainTypeIconOnAboutLogo(const NetworkStyle* networkStyle = nullptr);
 
 private Q_SLOTS:
     void on_okButton_accepted();