739611221c
QTreeView makes columns movable except for the first one
(since Qt 5.0, see commit e0fc088c0c). This is indeed best
for actual trees, but not when using QTreeView as a flat
multi-column list (with no "root decoration"). Then it should
be possible to move the first column.
[ChangeLog][QtWidgets][QHeaderView] Flat treeviews can now allow
the user to move the first column (like in Qt 4.x) using the new
method QHeaderView::setFirstSectionMovable().
Change-Id: I6b5025e40850bf5c4c373124ee81f657f3f09d29
Reviewed-by: Thorbjørn Lund Martsum <tmartsum@gmail.com>
85 lines
3.4 KiB
C++
85 lines
3.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2017 Klaralvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author David Faure <david.faure@kdab.com>
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** Contact: https://www.qt.io/licensing/
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** This file is part of the examples of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** "Redistribution and use in source and binary forms, with or without
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****************************************************************************/
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/*
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main.cpp
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A simple example that shows a multi-column list using QTreeView.
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The data is not a tree, so the first column was made movable.
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*/
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#include <QApplication>
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#include <QHeaderView>
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#include <QStandardItemModel>
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#include <QTreeView>
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int main(int argc, char *argv[])
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{
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QApplication app(argc, argv);
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QStandardItemModel model(4, 2);
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QTreeView treeView;
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treeView.setModel(&model);
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treeView.setRootIsDecorated(false);
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treeView.header()->setFirstSectionMovable(true);
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treeView.header()->setStretchLastSection(true);
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for (int row = 0; row < 4; ++row) {
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for (int column = 0; column < 2; ++column) {
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QModelIndex index = model.index(row, column, QModelIndex());
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model.setData(index, QVariant((row + 1) * (column + 1)));
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}
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}
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treeView.setWindowTitle(QObject::tr("Flat Tree View"));
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treeView.show();
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return app.exec();
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}
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