GUI: Load custom FontForMoney from QSettings

Author: luke-jr

src/qt/optionsmodel.cpp

@@ -118,6 +118,25 @@ struct ProxySetting {
 static ProxySetting ParseProxyString(const std::string& proxy);
 static std::string ProxyString(bool is_set, QString ip, QString port);
 
+static const QLatin1String fontchoice_str_embedded{"embedded"};
+static const QLatin1String fontchoice_str_best_system{"best_system"};
+static const QString fontchoice_str_custom_prefix{QStringLiteral("custom, ")};
+
+OptionsModel::FontChoice OptionsModel::FontChoiceFromString(const QString& s)
+{
+    if (s == fontchoice_str_best_system) {
+        return FontChoiceAbstract::BestSystemFont;
+    } else if (s == fontchoice_str_embedded) {
+        return FontChoiceAbstract::EmbeddedFont;
+    } else if (s.startsWith(fontchoice_str_custom_prefix)) {
+        QFont f;
+        f.fromString(s.mid(fontchoice_str_custom_prefix.size()));
+        return f;
+    } else {
+        return FontChoiceAbstract::EmbeddedFont;  // default
+    }
+}
+
 OptionsModel::OptionsModel(interfaces::Node& node, QObject *parent) :
     QAbstractListModel(parent), m_node{node}
 {
@@ -215,13 +234,14 @@ bool OptionsModel::Init(bilingual_str& error)
 #endif
 
     // Display
-    if (!settings.contains("UseEmbeddedMonospacedFont")) {
-        settings.setValue("UseEmbeddedMonospacedFont", "true");
-    }
-    if (settings.value("UseEmbeddedMonospacedFont").toBool()) {
-        m_font_money = FontChoiceAbstract::EmbeddedFont;
-    } else {
-        m_font_money = FontChoiceAbstract::BestSystemFont;
+    if (settings.contains("FontForMoney")) {
+        m_font_money = FontChoiceFromString(settings.value("FontForMoney").toString());
+    } else if (settings.contains("UseEmbeddedMonospacedFont")) {
+        if (settings.value("UseEmbeddedMonospacedFont").toBool()) {
+            m_font_money = FontChoiceAbstract::EmbeddedFont;
+        } else {
+            m_font_money = FontChoiceAbstract::BestSystemFont;
+        }
     }
     Q_EMIT fontForMoneyChanged(getFontForMoney());
 
@@ -615,6 +635,7 @@ bool OptionsModel::setOption(OptionID option, const QVariant& value, const std::
             m_font_money = FontChoiceAbstract::BestSystemFont;
         }
         settings.setValue("UseEmbeddedMonospacedFont", use_embedded_monospaced_font);
+        settings.remove("FontForMoney");
         Q_EMIT fontForMoneyChanged(getFontForMoney());
         break;
     }

src/qt/optionsmodel.h

@@ -129,7 +129,7 @@ class OptionsModel : public QAbstractListModel
     QString language;
     BitcoinUnit m_display_bitcoin_unit;
     QString strThirdPartyTxUrls;
-    FontChoice m_font_money;
+    FontChoice m_font_money{FontChoiceAbstract::EmbeddedFont};
     bool fCoinControlFeatures;
     bool m_sub_fee_from_amount;
     bool m_enable_psbt_controls;
@@ -138,6 +138,8 @@ class OptionsModel : public QAbstractListModel
     /* settings that were overridden by command-line */
     QString strOverriddenByCommandLine;
 
+    static FontChoice FontChoiceFromString(const QString&);
+
     // Add option to list of GUI options overridden through command line/config file
     void addOverriddenOption(const std::string &option);