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Diffstat (limited to 'examples/quick/quickwidgets/qquickviewcomparison/mainwindow.cpp')
| -rw-r--r-- | examples/quick/quickwidgets/qquickviewcomparison/mainwindow.cpp | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/examples/quick/quickwidgets/qquickviewcomparison/mainwindow.cpp b/examples/quick/quickwidgets/qquickviewcomparison/mainwindow.cpp new file mode 100644 index 0000000000..dbf4121518 --- /dev/null +++ b/examples/quick/quickwidgets/qquickviewcomparison/mainwindow.cpp @@ -0,0 +1,216 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 Digia Plc and its Subsidiary(-ies) 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 "mainwindow.h" +#include "fbitem.h" +#include <QVBoxLayout> +#include <QGroupBox> +#include <QRadioButton> +#include <QCheckBox> +#include <QLabel> +#include <QQuickItem> + +MainWindow::MainWindow() + : m_currentView(0), + m_currentRootObject(0) +{ + QVBoxLayout *layout = new QVBoxLayout; + + QGroupBox *groupBox = new QGroupBox(tr("Type")); + QVBoxLayout *vbox = new QVBoxLayout; + m_radioView = new QRadioButton(tr("QQuickView in a window container (direct)")); + m_radioWidget = new QRadioButton(tr("QQuickWidget (indirect through framebuffer objects)")); + vbox->addWidget(m_radioView); + vbox->addWidget(m_radioWidget); + m_radioView->setChecked(true); + connect(m_radioView, &QRadioButton::toggled, this, &MainWindow::updateView); + connect(m_radioWidget, &QRadioButton::toggled, this, &MainWindow::updateView); + groupBox->setLayout(vbox); + + layout->addWidget(groupBox); + + m_checkboxMultiSample = new QCheckBox(tr("Multisample (4x)")); + connect(m_checkboxMultiSample, &QCheckBox::toggled, this, &MainWindow::updateView); + layout->addWidget(m_checkboxMultiSample); + + m_labelStatus = new QLabel; + layout->addWidget(m_labelStatus); + + qmlRegisterType<FbItem>("fbitem", 1, 0, "FbItem"); + + QWidget *quickContainer = new QWidget; + layout->addWidget(quickContainer); + layout->setStretchFactor(quickContainer, 8); + m_containerLayout = new QVBoxLayout; + quickContainer->setLayout(m_containerLayout); + + // Add an overlay widget to demonstrate that it will _not_ work with + // QQuickView, whereas it is perfectly fine with QQuickWidget. + QPalette semiTransparent(QColor(255,0,0,128)); + semiTransparent.setBrush(QPalette::Text, Qt::white); + semiTransparent.setBrush(QPalette::WindowText, Qt::white); + + m_overlayLabel = new QLabel("This is a\nsemi-transparent\n overlay widget\nwhich is placed\non top\n of the Quick\ncontent.", this); + m_overlayLabel->setAlignment(Qt::AlignHCenter | Qt::AlignTop); + m_overlayLabel->setAutoFillBackground(true); + m_overlayLabel->setPalette(semiTransparent); + QFont f = font(); + f.setPixelSize(QFontInfo(f).pixelSize()*2); + f.setWeight(QFont::Bold); + m_overlayLabel->setFont(f); + m_overlayLabel->hide(); + + m_checkboxOverlayVisible = new QCheckBox(tr("Show widget overlay")); + connect(m_checkboxOverlayVisible, &QCheckBox::toggled, m_overlayLabel, &QWidget::setVisible); + layout->addWidget(m_checkboxOverlayVisible); + + setLayout(layout); + + updateView(); +} + +void MainWindow::resizeEvent(QResizeEvent*) +{ + int margin = width() / 10; + int top = m_checkboxMultiSample->y(); + int bottom = m_checkboxOverlayVisible->geometry().bottom(); + m_overlayLabel->setGeometry(margin, top, width() - 2 * margin, bottom - top); +} + +void MainWindow::switchTo(QWidget *view) +{ + if (m_containerLayout->count()) + m_containerLayout->takeAt(0); + + delete m_currentView; + m_currentView = view; + m_containerLayout->addWidget(m_currentView); + m_currentView->setFocus(); +} + +void MainWindow::updateView() +{ + QString text = m_currentRootObject + ? m_currentRootObject->property("currentText").toString() + : QStringLiteral("Hello Qt"); + + QUrl source("qrc:qquickviewcomparison/test.qml"); + QSurfaceFormat format; + format.setDepthBufferSize(16); + format.setStencilBufferSize(8); + if (m_checkboxMultiSample->isChecked()) + format.setSamples(4); + + if (m_radioView->isChecked()) { + QQuickView *quickView = new QQuickView; + quickView->setFormat(format); + quickView->setResizeMode(QQuickView::SizeRootObjectToView); + connect(quickView, &QQuickView::statusChanged, this, &MainWindow::onStatusChangedView); + connect(quickView, &QQuickView::sceneGraphError, this, &MainWindow::onSceneGraphError); + quickView->setSource(source); + m_currentRootObject = quickView->rootObject(); + switchTo(QWidget::createWindowContainer(quickView)); + } else { + QQuickWidget *quickWidget = new QQuickWidget; + quickWidget->setFormat(format); + quickWidget->setResizeMode(QQuickWidget::SizeRootObjectToView); + connect(quickWidget, &QQuickWidget::statusChanged, this, &MainWindow::onStatusChangedWidget); + connect(quickWidget, &QQuickWidget::sceneGraphError, this, &MainWindow::onSceneGraphError); + quickWidget->setSource(source); + m_currentRootObject = quickWidget->rootObject(); + switchTo(quickWidget); + } + + m_currentRootObject->setProperty("currentText", text); + m_currentRootObject->setProperty("multisample", m_checkboxMultiSample->isChecked()); + + m_overlayLabel->raise(); +} + +void MainWindow::onStatusChangedView(QQuickView::Status status) +{ + QString s; + switch (status) { + case QQuickView::Null: + s = tr("Null"); + break; + case QQuickView::Ready: + s = tr("Ready"); + break; + case QQuickView::Loading: + s = tr("Loading"); + break; + case QQuickView::Error: + s = tr("Error"); + break; + default: + s = tr("Unknown"); + break; + } + m_labelStatus->setText(tr("QQuickView status: %1").arg(s)); +} + +void MainWindow::onStatusChangedWidget(QQuickWidget::Status status) +{ + QString s; + switch (status) { + case QQuickWidget::Null: + s = tr("Null"); + break; + case QQuickWidget::Ready: + s = tr("Ready"); + break; + case QQuickWidget::Loading: + s = tr("Loading"); + break; + case QQuickWidget::Error: + s = tr("Error"); + break; + default: + s = tr("Unknown"); + break; + } + m_labelStatus->setText(tr("QQuickWidget status: %1").arg(s)); +} + +void MainWindow::onSceneGraphError(QQuickWindow::SceneGraphError error, const QString &message) +{ + m_labelStatus->setText(tr("Scenegraph error %1: %2").arg(error).arg(message)); +} |