gui: Generate bech32 addresses by default (take 2, fixup)

Author: MarcoFalke

src/interfaces/node.cpp

@@ -198,6 +198,7 @@ class NodeImpl : public Node
         return GuessVerificationProgress(Params().TxData(), tip);
     }
     bool isInitialBlockDownload() override { return ::ChainstateActive().IsInitialBlockDownload(); }
+    bool isAddressTypeSet() override { return !::gArgs.GetArg("-addresstype", "").empty(); }
     bool getReindex() override { return ::fReindex; }
     bool getImporting() override { return ::fImporting; }
     void setNetworkActive(bool active) override

src/interfaces/node.h

@@ -150,6 +150,9 @@ class Node
     //! Is initial block download.
     virtual bool isInitialBlockDownload() = 0;
 
+    //! Is -addresstype set.
+    virtual bool isAddressTypeSet() = 0;
+
     //! Get reindex.
     virtual bool getReindex() = 0;
 

src/qt/receivecoinsdialog.cpp

@@ -7,6 +7,7 @@
 #include <qt/receivecoinsdialog.h>
 #include <qt/forms/ui_receivecoinsdialog.h>
 
+#include <interfaces/node.h>
 #include <qt/addresstablemodel.h>
 #include <qt/optionsmodel.h>
 #include <qt/platformstyle.h>
@@ -92,10 +93,16 @@ void ReceiveCoinsDialog::setModel(WalletModel *_model)
         // Last 2 columns are set by the columnResizingFixer, when the table geometry is ready.
         columnResizingFixer = new GUIUtil::TableViewLastColumnResizingFixer(tableView, AMOUNT_MINIMUM_COLUMN_WIDTH, DATE_COLUMN_WIDTH, this);
 
-        if (model->wallet().getDefaultAddressType() == OutputType::BECH32) {
-            ui->useLegacyAddress->setCheckState(Qt::Unchecked);
+        if (model->node().isAddressTypeSet()) {
+            // user explicitly set the type, use it
+            if (model->wallet().getDefaultAddressType() == OutputType::BECH32) {
+                ui->useLegacyAddress->setCheckState(Qt::Unchecked);
+            } else {
+                ui->useLegacyAddress->setCheckState(Qt::Checked);
+            }
         } else {
-            ui->useLegacyAddress->setCheckState(Qt::Checked);
+            // Always fall back to bech32 in the gui
+            ui->useLegacyAddress->setCheckState(Qt::Unchecked);
         }
 
         // Set the button to be enabled or disabled based on whether the wallet can give out new addresses.