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Diffstat (limited to 'examples/widgets/effects/blurpicker/blurpicker.cpp')
| -rw-r--r-- | examples/widgets/effects/blurpicker/blurpicker.cpp | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/examples/widgets/effects/blurpicker/blurpicker.cpp b/examples/widgets/effects/blurpicker/blurpicker.cpp deleted file mode 100644 index 2b5995d870..0000000000 --- a/examples/widgets/effects/blurpicker/blurpicker.cpp +++ /dev/null @@ -1,169 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples 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 "blurpicker.h" - -#include <QtWidgets> -#include <QtCore/qmath.h> -#include <qmath.h> -#include "blureffect.h" - -BlurPicker::BlurPicker(QWidget *parent): QGraphicsView(parent), m_index(0.0), m_animation(this, "index") -{ - setBackgroundBrush(QPixmap(":/images/background.jpg")); - setScene(new QGraphicsScene(this)); - - setupScene(); - setIndex(0); - - m_animation.setDuration(400); - m_animation.setEasingCurve(QEasingCurve::InOutSine); - - setRenderHint(QPainter::Antialiasing, true); - setFrameStyle(QFrame::NoFrame); -} - -qreal BlurPicker::index() const -{ - return m_index; -} - -void BlurPicker::setIndex(qreal index) -{ - m_index = index; - - qreal baseline = 0; - const qreal iconAngle = 2 * M_PI / m_icons.count(); - for (int i = 0; i < m_icons.count(); ++i) { - QGraphicsItem *icon = m_icons[i]; - qreal a = (i + m_index) * iconAngle; - qreal xs = 170 * qSin(a); - qreal ys = 100 * qCos(a); - QPointF pos(xs, ys); - pos = QTransform().rotate(-20).map(pos); - pos -= QPointF(40, 40); - icon->setPos(pos); - baseline = qMax(baseline, ys); - static_cast<BlurEffect *>(icon->graphicsEffect())->setBaseLine(baseline); - } - - scene()->update(); -} - -void BlurPicker::setupScene() -{ - scene()->setSceneRect(-200, -120, 400, 240); - - QStringList names; - names << ":/images/accessories-calculator.png"; - names << ":/images/accessories-text-editor.png"; - names << ":/images/help-browser.png"; - names << ":/images/internet-group-chat.png"; - names << ":/images/internet-mail.png"; - names << ":/images/internet-web-browser.png"; - names << ":/images/office-calendar.png"; - names << ":/images/system-users.png"; - - for (int i = 0; i < names.count(); i++) { - QPixmap pixmap(names[i]); - QGraphicsPixmapItem *icon = scene()->addPixmap(pixmap); - icon->setZValue(1); - icon->setGraphicsEffect(new BlurEffect(icon)); - m_icons << icon; - } - - QGraphicsPixmapItem *bg = scene()->addPixmap(QPixmap(":/images/background.jpg")); - bg->setZValue(0); - bg->setPos(-200, -150); -} - -void BlurPicker::keyPressEvent(QKeyEvent *event) -{ - int delta = 0; - switch (event->key()) - { - case Qt::Key_Left: - delta = -1; - break; - case Qt::Key_Right: - delta = 1; - break; - default: - break; - } - if (m_animation.state() == QAbstractAnimation::Stopped && delta) { - m_animation.setEndValue(m_index + delta); - m_animation.start(); - event->accept(); - } -} - -void BlurPicker::resizeEvent(QResizeEvent * /* event */) -{ -} - -void BlurPicker::mousePressEvent(QMouseEvent *event) -{ - int delta = 0; - if (event->position().x() > (width() / 2)) - { - delta = 1; - } - else - { - delta = -1; - } - - if (m_animation.state() == QAbstractAnimation::Stopped && delta) { - m_animation.setEndValue(m_index + delta); - m_animation.start(); - event->accept(); - } -} |