From af84f12298e7ba51d4121f9dd7a1b6e3ba050266 Mon Sep 17 00:00:00 2001
From: Christian Ehrlicher <ch.ehrlicher@gmx.de>
Date: Sat, 24 Nov 2018 17:29:15 +0100
Subject: Cleanup Itemviews examples

Cleanup the Itemviews examples
 - use nullptr instead 0
 - use for loop instead foreach
 - include own header first
 - remove uselss includes

Change-Id: I32e9f64356e42038707d063dcad977239ce1fe9e
Reviewed-by: Luca Beldi <v.ronin@yahoo.it>
Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com>
---
 .../widgets/itemviews/fetchmore/filelistmodel.cpp  | 25 +++++++++++-----------
 1 file changed, 12 insertions(+), 13 deletions(-)

(limited to 'examples/widgets/itemviews/fetchmore/filelistmodel.cpp')

diff --git a/examples/widgets/itemviews/fetchmore/filelistmodel.cpp b/examples/widgets/itemviews/fetchmore/filelistmodel.cpp
index 086d45eca3..3ee80617c0 100644
--- a/examples/widgets/itemviews/fetchmore/filelistmodel.cpp
+++ b/examples/widgets/itemviews/fetchmore/filelistmodel.cpp
@@ -50,20 +50,18 @@
 
 #include "filelistmodel.h"
 
-#include <QApplication>
-#include <QBrush>
+#include <QGuiApplication>
 #include <QDir>
 #include <QPalette>
 
 FileListModel::FileListModel(QObject *parent)
-    : QAbstractListModel(parent)
-{
-}
+    : QAbstractListModel(parent), fileCount(0)
+{}
 
 //![4]
-int FileListModel::rowCount(const QModelIndex & /* parent */) const
+int FileListModel::rowCount(const QModelIndex &parent) const
 {
-    return fileCount;
+    return parent.isValid() ? 0 : fileCount;
 }
 
 QVariant FileListModel::data(const QModelIndex &index, int role) const
@@ -88,25 +86,26 @@ QVariant FileListModel::data(const QModelIndex &index, int role) const
 //![4]
 
 //![1]
-bool FileListModel::canFetchMore(const QModelIndex & /* index */) const
+bool FileListModel::canFetchMore(const QModelIndex &parent) const
 {
-    if (fileCount < fileList.size())
-        return true;
-    else
+    if (parent.isValid())
         return false;
+    return (fileCount < fileList.size());
 }
 //![1]
 
 //![2]
-void FileListModel::fetchMore(const QModelIndex & /* index */)
+void FileListModel::fetchMore(const QModelIndex &parent)
 {
+    if (parent.isValid())
+        return;
     int remainder = fileList.size() - fileCount;
     int itemsToFetch = qMin(100, remainder);
 
     if (itemsToFetch <= 0)
         return;
 
-    beginInsertRows(QModelIndex(), fileCount, fileCount+itemsToFetch-1);
+    beginInsertRows(QModelIndex(), fileCount, fileCount + itemsToFetch - 1);
 
     fileCount += itemsToFetch;
 
-- 
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