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-rw-r--r--examples/widgets/widgets/elidedlabel/elidedlabel.cpp121
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diff --git a/examples/widgets/widgets/elidedlabel/elidedlabel.cpp b/examples/widgets/widgets/elidedlabel/elidedlabel.cpp
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--- a/examples/widgets/widgets/elidedlabel/elidedlabel.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of The Qt Company Ltd nor the names of its
-** contributors may be used to endorse or promote products derived
-** from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "elidedlabel.h"
-
-#include <QPainter>
-#include <QSizePolicy>
-#include <QTextLayout>
-
-//! [0]
-ElidedLabel::ElidedLabel(const QString &text, QWidget *parent)
- : QFrame(parent)
- , elided(false)
- , content(text)
-{
- setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
-}
-//! [0]
-
-//! [1]
-void ElidedLabel::setText(const QString &newText)
-{
- content = newText;
- update();
-}
-//! [1]
-
-//! [2]
-void ElidedLabel::paintEvent(QPaintEvent *event)
-{
- QFrame::paintEvent(event);
-
- QPainter painter(this);
- QFontMetrics fontMetrics = painter.fontMetrics();
-
- bool didElide = false;
- int lineSpacing = fontMetrics.lineSpacing();
- int y = 0;
-
- QTextLayout textLayout(content, painter.font());
- textLayout.beginLayout();
- forever {
- QTextLine line = textLayout.createLine();
-
- if (!line.isValid())
- break;
-
- line.setLineWidth(width());
- int nextLineY = y + lineSpacing;
-
- if (height() >= nextLineY + lineSpacing) {
- line.draw(&painter, QPoint(0, y));
- y = nextLineY;
- //! [2]
- //! [3]
- } else {
- QString lastLine = content.mid(line.textStart());
- QString elidedLastLine = fontMetrics.elidedText(lastLine, Qt::ElideRight, width());
- painter.drawText(QPoint(0, y + fontMetrics.ascent()), elidedLastLine);
- line = textLayout.createLine();
- didElide = line.isValid();
- break;
- }
- }
- textLayout.endLayout();
- //! [3]
-
- //! [4]
- if (didElide != elided) {
- elided = didElide;
- emit elisionChanged(didElide);
- }
-}
-//! [4]