182 lines
6.9 KiB
C++
182 lines
6.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "window.h"
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Window::Window(QWidget *parent)
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: QWidget(parent),
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#if defined(Q_OS_SYMBIAN) || defined(Q_WS_SIMULATOR)
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m_iconSize(32, 32)
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#else
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m_iconSize(64, 64)
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#endif
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{
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m_ui.setupUi(this);
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QButtonGroup *buttonGroup = findChild<QButtonGroup *>(); // ### workaround for uic in 4.4
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m_ui.easingCurvePicker->setIconSize(m_iconSize);
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m_ui.easingCurvePicker->setMinimumHeight(m_iconSize.height() + 50);
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buttonGroup->setId(m_ui.lineRadio, 0);
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buttonGroup->setId(m_ui.circleRadio, 1);
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QEasingCurve dummy;
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m_ui.periodSpinBox->setValue(dummy.period());
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m_ui.amplitudeSpinBox->setValue(dummy.amplitude());
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m_ui.overshootSpinBox->setValue(dummy.overshoot());
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connect(m_ui.easingCurvePicker, SIGNAL(currentRowChanged(int)), this, SLOT(curveChanged(int)));
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connect(buttonGroup, SIGNAL(buttonClicked(int)), this, SLOT(pathChanged(int)));
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connect(m_ui.periodSpinBox, SIGNAL(valueChanged(double)), this, SLOT(periodChanged(double)));
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connect(m_ui.amplitudeSpinBox, SIGNAL(valueChanged(double)), this, SLOT(amplitudeChanged(double)));
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connect(m_ui.overshootSpinBox, SIGNAL(valueChanged(double)), this, SLOT(overshootChanged(double)));
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createCurveIcons();
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QPixmap pix(QLatin1String(":/images/qt-logo.png"));
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m_item = new PixmapItem(pix);
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m_scene.addItem(m_item);
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m_ui.graphicsView->setScene(&m_scene);
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m_anim = new Animation(m_item, "pos");
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m_anim->setEasingCurve(QEasingCurve::OutBounce);
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m_ui.easingCurvePicker->setCurrentRow(int(QEasingCurve::OutBounce));
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startAnimation();
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}
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void Window::createCurveIcons()
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{
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QPixmap pix(m_iconSize);
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QPainter painter(&pix);
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QLinearGradient gradient(0,0, 0, m_iconSize.height());
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gradient.setColorAt(0.0, QColor(240, 240, 240));
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gradient.setColorAt(1.0, QColor(224, 224, 224));
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QBrush brush(gradient);
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const QMetaObject &mo = QEasingCurve::staticMetaObject;
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QMetaEnum metaEnum = mo.enumerator(mo.indexOfEnumerator("Type"));
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// Skip QEasingCurve::Custom
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for (int i = 0; i < QEasingCurve::NCurveTypes - 1; ++i) {
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painter.fillRect(QRect(QPoint(0, 0), m_iconSize), brush);
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QEasingCurve curve((QEasingCurve::Type)i);
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painter.setPen(QColor(0, 0, 255, 64));
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qreal xAxis = m_iconSize.height()/1.5;
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qreal yAxis = m_iconSize.width()/3;
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painter.drawLine(0, xAxis, m_iconSize.width(), xAxis);
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painter.drawLine(yAxis, 0, yAxis, m_iconSize.height());
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qreal curveScale = m_iconSize.height()/2;
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painter.setPen(Qt::NoPen);
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// start point
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painter.setBrush(Qt::red);
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QPoint start(yAxis, xAxis - curveScale * curve.valueForProgress(0));
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painter.drawRect(start.x() - 1, start.y() - 1, 3, 3);
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// end point
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painter.setBrush(Qt::blue);
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QPoint end(yAxis + curveScale, xAxis - curveScale * curve.valueForProgress(1));
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painter.drawRect(end.x() - 1, end.y() - 1, 3, 3);
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QPainterPath curvePath;
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curvePath.moveTo(start);
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for (qreal t = 0; t <= 1.0; t+=1.0/curveScale) {
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QPoint to;
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to.setX(yAxis + curveScale * t);
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to.setY(xAxis - curveScale * curve.valueForProgress(t));
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curvePath.lineTo(to);
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}
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painter.setRenderHint(QPainter::Antialiasing, true);
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painter.strokePath(curvePath, QColor(32, 32, 32));
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painter.setRenderHint(QPainter::Antialiasing, false);
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QListWidgetItem *item = new QListWidgetItem;
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item->setIcon(QIcon(pix));
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item->setText(metaEnum.key(i));
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m_ui.easingCurvePicker->addItem(item);
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}
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}
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void Window::startAnimation()
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{
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m_anim->setStartValue(QPointF(0, 0));
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m_anim->setEndValue(QPointF(100, 100));
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m_anim->setDuration(2000);
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m_anim->setLoopCount(-1); // forever
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m_anim->start();
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}
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void Window::curveChanged(int row)
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{
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QEasingCurve::Type curveType = (QEasingCurve::Type)row;
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m_anim->setEasingCurve(curveType);
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m_anim->setCurrentTime(0);
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bool isElastic = curveType >= QEasingCurve::InElastic && curveType <= QEasingCurve::OutInElastic;
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bool isBounce = curveType >= QEasingCurve::InBounce && curveType <= QEasingCurve::OutInBounce;
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m_ui.periodSpinBox->setEnabled(isElastic);
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m_ui.amplitudeSpinBox->setEnabled(isElastic || isBounce);
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m_ui.overshootSpinBox->setEnabled(curveType >= QEasingCurve::InBack && curveType <= QEasingCurve::OutInBack);
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}
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void Window::pathChanged(int index)
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{
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m_anim->setPathType((Animation::PathType)index);
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}
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void Window::periodChanged(double value)
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{
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QEasingCurve curve = m_anim->easingCurve();
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curve.setPeriod(value);
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m_anim->setEasingCurve(curve);
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}
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void Window::amplitudeChanged(double value)
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{
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QEasingCurve curve = m_anim->easingCurve();
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curve.setAmplitude(value);
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m_anim->setEasingCurve(curve);
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}
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void Window::overshootChanged(double value)
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{
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QEasingCurve curve = m_anim->easingCurve();
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curve.setOvershoot(value);
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m_anim->setEasingCurve(curve);
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}
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