merge bitcoin-core/gui#354: Refactor open date range to use std::optional

src/qt/transactionfilterproxy.cpp

@@ -9,15 +9,8 @@
 
 #include <cstdlib>
 
-// Earliest date that can be represented (far in the past)
-const QDateTime TransactionFilterProxy::MIN_DATE = QDateTime::fromTime_t(0);
-// Last date that can be represented (far in the future)
-const QDateTime TransactionFilterProxy::MAX_DATE = QDateTime::fromTime_t(0xFFFFFFFF);
-
 TransactionFilterProxy::TransactionFilterProxy(QObject *parent) :
     QSortFilterProxyModel(parent),
-    dateFrom(MIN_DATE.toTime_t()),
-    dateTo(MAX_DATE.toTime_t()),
     m_search_string(),
     typeFilter(COMMON_TYPES),
     watchOnlyFilter(WatchOnlyFilter_All),
@@ -44,9 +37,10 @@ bool TransactionFilterProxy::filterAcceptsRow(int sourceRow, const QModelIndex &
         return false;
     if (!involvesWatchAddress && watchOnlyFilter == WatchOnlyFilter_Yes)
         return false;
-    qint64 datetime = index.data(TransactionTableModel::DateRoleInt).toLongLong();
+
-    if (datetime < dateFrom || datetime > dateTo)
+    QDateTime datetime = index.data(TransactionTableModel::DateRole).toDateTime();
-        return false;
+    if (dateFrom && datetime < *dateFrom) return false;
+    if (dateTo && datetime > *dateTo) return false;
 
     QString address = index.data(TransactionTableModel::AddressRole).toString();
     QString label = index.data(TransactionTableModel::LabelRole).toString();
@@ -64,10 +58,10 @@ bool TransactionFilterProxy::filterAcceptsRow(int sourceRow, const QModelIndex &
     return true;
 }
 
-void TransactionFilterProxy::setDateRange(const QDateTime &from, const QDateTime &to)
+void TransactionFilterProxy::setDateRange(const std::optional<QDateTime>& from, const std::optional<QDateTime>& to)
 {
-    this->dateFrom = from.toTime_t();
+    dateFrom = from;
-    this->dateTo = to.toTime_t();
+    dateTo = to;
     invalidateFilter();
 }
 

src/qt/transactionfilterproxy.h

@@ -10,6 +10,8 @@
 #include <QDateTime>
 #include <QSortFilterProxyModel>
 
+#include <optional>
+
 /** Filter the transaction list according to pre-specified rules. */
 class TransactionFilterProxy : public QSortFilterProxyModel
 {
@@ -18,10 +20,6 @@ class TransactionFilterProxy : public QSortFilterProxyModel
 public:
     explicit TransactionFilterProxy(QObject *parent = nullptr);
 
-    /** Earliest date that can be represented (far in the past) */
-    static const QDateTime MIN_DATE;
-    /** Last date that can be represented (far in the future) */
-    static const QDateTime MAX_DATE;
     /** Type filter bit field (all types) */
     static const quint32 ALL_TYPES = 0xFFFFFFFF;
     /** Type filter bit field (all types but Darksend-SPAM) */
@@ -36,7 +34,8 @@ public:
         WatchOnlyFilter_No
     };
 
-    void setDateRange(const QDateTime &from, const QDateTime &to);
+    /** Filter transactions between date range. Use std::nullopt for open range. */
+    void setDateRange(const std::optional<QDateTime>& from, const std::optional<QDateTime>& to);
     void setSearchString(const QString &);
     /**
       @note Type filter takes a bit field created with TYPE() or ALL_TYPES
@@ -57,8 +56,8 @@ protected:
     bool filterAcceptsRow(int source_row, const QModelIndex & source_parent) const override;
 
 private:
-    qint64 dateFrom;
+    std::optional<QDateTime> dateFrom;
-    qint64 dateTo;
+    std::optional<QDateTime> dateTo;
     QString m_search_string;
     quint32 typeFilter;
     WatchOnlyFilter watchOnlyFilter;

src/qt/transactionview.cpp

@@ -20,6 +20,8 @@
 #include <interfaces/node.h>
 #include <node/ui_interface.h>
 
+#include <optional>
+
 #include <QCalendarWidget>
 #include <QComboBox>
 #include <QDateTimeEdit>
@@ -265,26 +267,26 @@ void TransactionView::chooseDate(int idx)
     {
     case All:
         transactionProxyModel->setDateRange(
-                TransactionFilterProxy::MIN_DATE,
+                std::nullopt,
-                TransactionFilterProxy::MAX_DATE);
+                std::nullopt);
         break;
     case Today:
         transactionProxyModel->setDateRange(
                 GUIUtil::StartOfDay(current),
-                TransactionFilterProxy::MAX_DATE);
+                std::nullopt);
         break;
     case ThisWeek: {
         // Find last Monday
         QDate startOfWeek = current.addDays(-(current.dayOfWeek()-1));
         transactionProxyModel->setDateRange(
                 GUIUtil::StartOfDay(startOfWeek),
-                TransactionFilterProxy::MAX_DATE);
+                std::nullopt);
 
         } break;
     case ThisMonth:
         transactionProxyModel->setDateRange(
                 GUIUtil::StartOfDay(QDate(current.year(), current.month(), 1)),
-                TransactionFilterProxy::MAX_DATE);
+                std::nullopt);
         break;
     case LastMonth:
         transactionProxyModel->setDateRange(
@@ -294,7 +296,7 @@ void TransactionView::chooseDate(int idx)
     case ThisYear:
         transactionProxyModel->setDateRange(
                 GUIUtil::StartOfDay(QDate(current.year(), 1, 1)),
-                TransactionFilterProxy::MAX_DATE);
+                std::nullopt);
         break;
     case Range:
         dateRangeWidget->setVisible(true);