forked from qt-creator/qt-creator
bafdf36f80
Adds a way to 'attach' a progress indicator to a parent, so it automatically keeps itself centered on the parent. Also adds shortcut methods to BaseTreeView. Change-Id: I962a9300d89ef5d1e03298d670e0cee781d3a4e5 Reviewed-by: hjk <hjk@theqtcompany.com>
129 lines
4.0 KiB
C++
129 lines
4.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://www.qt.io/licensing. For further information
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** use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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****************************************************************************/
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#include "progressindicator.h"
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#include "qtcassert.h"
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#include "stylehelper.h"
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#include <QEvent>
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#include <QPainter>
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#include <QPixmap>
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using namespace Utils;
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ProgressIndicator::ProgressIndicator(IndicatorSize size, QWidget *parent)
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: QWidget(parent),
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m_rotation(0)
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{
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setAttribute(Qt::WA_TransparentForMouseEvents);
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m_timer.setSingleShot(false);
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connect(&m_timer, &QTimer::timeout, this, &ProgressIndicator::step);
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setIndicatorSize(size);
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}
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void ProgressIndicator::setIndicatorSize(ProgressIndicator::IndicatorSize size)
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{
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m_size = size;
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m_rotationStep = size == Small ? 45 : 30;
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m_timer.setInterval(size == Small ? 100 : 80);
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m_pixmap.load(StyleHelper::dpiSpecificImageFile(
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size == Small ? QLatin1String(":/utils/images/progressindicator_small.png")
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: QLatin1String(":/utils/images/progressindicator_big.png")));
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updateGeometry();
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}
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ProgressIndicator::IndicatorSize ProgressIndicator::indicatorSize() const
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{
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return m_size;
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}
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QSize ProgressIndicator::sizeHint() const
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{
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return m_pixmap.size() / m_pixmap.devicePixelRatio();
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}
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void ProgressIndicator::attachToWidget(QWidget *parent)
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{
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if (parentWidget())
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parentWidget()->removeEventFilter(this);
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setParent(parent);
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parent->installEventFilter(this);
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resizeToParent();
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raise();
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}
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void ProgressIndicator::paintEvent(QPaintEvent *)
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{
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QPainter p(this);
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p.setRenderHint(QPainter::SmoothPixmapTransform);
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QPoint translate(rect().width() / 2, rect().height() / 2);
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QTransform t;
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t.translate(translate.x(), translate.y());
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t.rotate(m_rotation);
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t.translate(-translate.x(), -translate.y());
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p.setTransform(t);
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QSize pixmapUserSize(m_pixmap.size() / m_pixmap.devicePixelRatio());
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p.drawPixmap(QPoint((rect().width() - pixmapUserSize.width()) / 2,
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(rect().height() - pixmapUserSize.height()) / 2),
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m_pixmap);
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}
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void ProgressIndicator::showEvent(QShowEvent *)
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{
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m_timer.start();
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}
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void ProgressIndicator::hideEvent(QHideEvent *)
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{
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m_timer.stop();
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}
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bool ProgressIndicator::eventFilter(QObject *obj, QEvent *ev)
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{
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if (obj == parent() && ev->type() == QEvent::Resize) {
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resizeToParent();
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}
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return QWidget::eventFilter(obj, ev);
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}
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void ProgressIndicator::step()
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{
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m_rotation = (m_rotation + m_rotationStep + 360) % 360;
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update();
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}
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void ProgressIndicator::resizeToParent()
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{
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QTC_ASSERT(parentWidget(), return);
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setGeometry(QRect(QPoint(0, 0), parentWidget()->size()));
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}
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