qt: Save/restore TransactionView table column sizes

Sorting order is not saved/restored intentionally.

Author: hebasto

src/qt/transactionview.cpp

@@ -31,6 +31,7 @@
 #include <QMenu>
 #include <QPoint>
 #include <QScrollBar>
+#include <QSettings>
 #include <QTableView>
 #include <QTimer>
 #include <QUrl>
@@ -146,17 +147,20 @@ TransactionView::TransactionView(const PlatformStyle *platformStyle, QWidget *pa
     transactionView->setAlternatingRowColors(true);
     transactionView->setSelectionBehavior(QAbstractItemView::SelectRows);
     transactionView->setSelectionMode(QAbstractItemView::ExtendedSelection);
-    transactionView->horizontalHeader()->setSortIndicator(TransactionTableModel::Date, Qt::DescendingOrder);
     transactionView->setSortingEnabled(true);
     transactionView->verticalHeader()->hide();
 
-    transactionView->setColumnWidth(TransactionTableModel::Status, STATUS_COLUMN_WIDTH);
-    transactionView->setColumnWidth(TransactionTableModel::Watchonly, WATCHONLY_COLUMN_WIDTH);
-    transactionView->setColumnWidth(TransactionTableModel::Date, DATE_COLUMN_WIDTH);
-    transactionView->setColumnWidth(TransactionTableModel::Type, TYPE_COLUMN_WIDTH);
-    transactionView->setColumnWidth(TransactionTableModel::Amount, AMOUNT_MINIMUM_COLUMN_WIDTH);
-    transactionView->horizontalHeader()->setMinimumSectionSize(MINIMUM_COLUMN_WIDTH);
-    transactionView->horizontalHeader()->setStretchLastSection(true);
+    QSettings settings;
+    if (!transactionView->horizontalHeader()->restoreState(settings.value("TransactionViewHeaderState").toByteArray())) {
+        transactionView->setColumnWidth(TransactionTableModel::Status, STATUS_COLUMN_WIDTH);
+        transactionView->setColumnWidth(TransactionTableModel::Watchonly, WATCHONLY_COLUMN_WIDTH);
+        transactionView->setColumnWidth(TransactionTableModel::Date, DATE_COLUMN_WIDTH);
+        transactionView->setColumnWidth(TransactionTableModel::Type, TYPE_COLUMN_WIDTH);
+        transactionView->setColumnWidth(TransactionTableModel::Amount, AMOUNT_MINIMUM_COLUMN_WIDTH);
+        transactionView->horizontalHeader()->setMinimumSectionSize(MINIMUM_COLUMN_WIDTH);
+        transactionView->horizontalHeader()->setStretchLastSection(true);
+    }
+    transactionView->horizontalHeader()->setSortIndicator(TransactionTableModel::Date, Qt::DescendingOrder);
 
     // Actions
     abandonAction = new QAction(tr("Abandon transaction"), this);
@@ -214,6 +218,12 @@ TransactionView::TransactionView(const PlatformStyle *platformStyle, QWidget *pa
     });
 }
 
+TransactionView::~TransactionView()
+{
+    QSettings settings;
+    settings.setValue("TransactionViewHeaderState", transactionView->horizontalHeader()->saveState());
+}
+
 void TransactionView::setModel(WalletModel *_model)
 {
     this->model = _model;

src/qt/transactionview.h

@@ -35,6 +35,7 @@ class TransactionView : public QWidget
 
 public:
     explicit TransactionView(const PlatformStyle *platformStyle, QWidget *parent = nullptr);
+    ~TransactionView();
 
     void setModel(WalletModel *model);