forked from qt-creator/qt-creator
56baf8c058
Since we also license under GPL-3.0 WITH Qt-GPL-exception-1.0,
this applies only to a hypothetical newer version of GPL, that doesn't
exist yet. If such a version emerges, we can still decide to relicense...
While at it, replace (deprecated) GPL-3.0 with more explicit GPL-3.0-only
Change was done by running
find . -type f -exec perl -pi -e "s/LicenseRef-Qt-Commercial OR GPL-3.0\+ OR GPL-3.0 WITH Qt-GPL-exception-1.0/LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0/g" {} \;
Change-Id: I5097e6ce8d10233993ee30d7e25120e2659eb10b
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
65 lines
2.1 KiB
C++
65 lines
2.1 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include "headerviewstretcher.h"
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#include <QHideEvent>
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#include <QHeaderView>
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using namespace Utils;
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/*!
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\class Utils::HeaderViewStretcher
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\brief The HeaderViewStretcher class fixes QHeaderView to resize all
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columns to contents, except one
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stretching column.
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As opposed to standard QTreeWidget, all columns are
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still interactively resizable.
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*/
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HeaderViewStretcher::HeaderViewStretcher(QHeaderView *headerView, int columnToStretch)
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: QObject(headerView), m_columnToStretch(columnToStretch)
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{
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headerView->installEventFilter(this);
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stretch();
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}
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void HeaderViewStretcher::stretch()
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{
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QHideEvent fake;
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HeaderViewStretcher::eventFilter(parent(), &fake);
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}
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void HeaderViewStretcher::softStretch()
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{
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const auto hv = qobject_cast<QHeaderView*>(parent());
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for (int i = 0; i < hv->count(); ++i)
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hv->resizeSections(QHeaderView::ResizeToContents);
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}
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bool HeaderViewStretcher::eventFilter(QObject *obj, QEvent *ev)
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{
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if (obj == parent()) {
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if (ev->type() == QEvent::Show) {
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auto hv = qobject_cast<QHeaderView*>(obj);
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for (int i = 0; i < hv->count(); ++i)
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hv->setSectionResizeMode(i, QHeaderView::Interactive);
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} else if (ev->type() == QEvent::Hide) {
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auto hv = qobject_cast<QHeaderView*>(obj);
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for (int i = 0; i < hv->count(); ++i)
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hv->setSectionResizeMode(i, i == m_columnToStretch
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? QHeaderView::Stretch : QHeaderView::ResizeToContents);
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} else if (ev->type() == QEvent::Resize) {
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auto hv = qobject_cast<QHeaderView*>(obj);
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if (hv->sectionResizeMode(m_columnToStretch) == QHeaderView::Interactive) {
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auto re = static_cast<QResizeEvent*>(ev);
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int diff = re->size().width() - re->oldSize().width() ;
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hv->resizeSection(m_columnToStretch, qMax(32, hv->sectionSize(m_columnToStretch) + diff));
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}
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}
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}
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return false;
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}
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