From 0ec1024ff8ccce76eca32d9f42c9d59a4e483c88 Mon Sep 17 00:00:00 2001
From: Po-Hao Su <supohaosu@gmail.com>
Date: Thu, 19 Oct 2023 23:21:14 +0800
Subject: [PATCH] QSortFilterProxyModel: remove duplicate implementations

Since these functions perform the same operation as the base class
QAbstractProxyModel, we can use the counterparts of the basic class
directly to keep the implementation clean.

Change-Id: Ie16a988f5ad25eb202351713e6aee73df266209b
Reviewed-by: David Faure <david.faure@kdab.com>
---
 .../itemmodels/qsortfilterproxymodel.cpp       | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/src/corelib/itemmodels/qsortfilterproxymodel.cpp b/src/corelib/itemmodels/qsortfilterproxymodel.cpp
index 4600bcd9863..ddb9022d9ec 100644
--- a/src/corelib/itemmodels/qsortfilterproxymodel.cpp
+++ b/src/corelib/itemmodels/qsortfilterproxymodel.cpp
@@ -2435,11 +2435,7 @@ bool QSortFilterProxyModel::removeColumns(int column, int count, const QModelInd
 */
 void QSortFilterProxyModel::fetchMore(const QModelIndex &parent)
 {
-    Q_D(QSortFilterProxyModel);
-    QModelIndex source_parent;
-    if (d->indexValid(parent))
-        source_parent = mapToSource(parent);
-    d->model->fetchMore(source_parent);
+    QAbstractProxyModel::fetchMore(parent);
 }
 
 /*!
@@ -2447,11 +2443,7 @@ void QSortFilterProxyModel::fetchMore(const QModelIndex &parent)
 */
 bool QSortFilterProxyModel::canFetchMore(const QModelIndex &parent) const
 {
-    Q_D(const QSortFilterProxyModel);
-    QModelIndex source_parent;
-    if (d->indexValid(parent))
-        source_parent = mapToSource(parent);
-    return d->model->canFetchMore(source_parent);
+    return QAbstractProxyModel::canFetchMore(parent);
 }
 
 /*!
@@ -2459,11 +2451,7 @@ bool QSortFilterProxyModel::canFetchMore(const QModelIndex &parent) const
 */
 Qt::ItemFlags QSortFilterProxyModel::flags(const QModelIndex &index) const
 {
-    Q_D(const QSortFilterProxyModel);
-    QModelIndex source_index;
-    if (d->indexValid(index))
-        source_index = mapToSource(index);
-    return d->model->flags(source_index);
+    return QAbstractProxyModel::flags(index);
 }
 
 /*!