diff options
Diffstat (limited to 'examples')
9 files changed, 245 insertions, 0 deletions
diff --git a/examples/quick/imageresponseprovider/ImageResponseProviderCore/qmldir b/examples/quick/imageresponseprovider/ImageResponseProviderCore/qmldir new file mode 100644 index 0000000000..3a5821bdf2 --- /dev/null +++ b/examples/quick/imageresponseprovider/ImageResponseProviderCore/qmldir @@ -0,0 +1,2 @@ +plugin qmlimageresponseproviderplugin + diff --git a/examples/quick/imageresponseprovider/doc/src/imageresponseprovider.qdoc b/examples/quick/imageresponseprovider/doc/src/imageresponseprovider.qdoc new file mode 100644 index 0000000000..afe1d406d8 --- /dev/null +++ b/examples/quick/imageresponseprovider/doc/src/imageresponseprovider.qdoc @@ -0,0 +1,35 @@ +/**************************************************************************** +** +** Copyright (C) 2015 Canonical Limited and/or its subsidiary(-ies) +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:FDL$ +** 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 http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. +** +** GNU Free Documentation License Usage +** Alternatively, this file may be used under the terms of the GNU Free +** Documentation License version 1.3 as published by the Free Software +** Foundation and appearing in the file included in the packaging of +** this file. Please review the following information to ensure +** the GNU Free Documentation License version 1.3 requirements +** will be met: http://www.gnu.org/copyleft/fdl.html. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \title C++ Extensions: Image Response Provider Example + \example imageresponseprovider + + This examples shows how to use QQuickImageProvider to serve images + asynchronously to QML image elements. +*/ + diff --git a/examples/quick/imageresponseprovider/imageresponseprovider-example.qml b/examples/quick/imageresponseprovider/imageresponseprovider-example.qml new file mode 100644 index 0000000000..20c1e69434 --- /dev/null +++ b/examples/quick/imageresponseprovider/imageresponseprovider-example.qml @@ -0,0 +1,48 @@ +/**************************************************************************** +** +** Copyright (C) 2015 Canonical Limited and/or its subsidiary(-ies) +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the demonstration applications 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 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 2.0 +import "ImageResponseProviderCore" + +Column { + Image { source: "image://async/slow" } + Image { source: "image://async/fast" } +} + diff --git a/examples/quick/imageresponseprovider/imageresponseprovider.cpp b/examples/quick/imageresponseprovider/imageresponseprovider.cpp new file mode 100644 index 0000000000..bdec29114b --- /dev/null +++ b/examples/quick/imageresponseprovider/imageresponseprovider.cpp @@ -0,0 +1,123 @@ +/**************************************************************************** +** +** Copyright (C) 2015 Canonical Limited and/or its subsidiary(-ies) +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the demonstration applications 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 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 <qqmlextensionplugin.h> + +#include <qqmlengine.h> +#include <qquickimageprovider.h> +#include <QDebug> +#include <QImage> +#include <QThreadPool> + +class AsyncImageResponse : public QQuickImageResponse, public QRunnable +{ + public: + AsyncImageResponse(const QString &id, const QSize &requestedSize) + : m_id(id), m_requestedSize(requestedSize), m_texture(0) + { + setAutoDelete(false); + } + + QQuickTextureFactory *textureFactory() const + { + return m_texture; + } + + void run() + { + QImage image(50, 50, QImage::Format_RGB32); + if (m_id == "slow") { + qDebug() << "Slow, red, sleeping for 5 seconds"; + QThread::sleep(5); + image.fill(Qt::red); + } else { + qDebug() << "Fast, blue, sleeping for 1 second"; + QThread::sleep(1); + image.fill(Qt::blue); + } + if (m_requestedSize.isValid()) + image = image.scaled(m_requestedSize); + m_texture = QQuickTextureFactory::textureFactoryForImage(image); + emit finished(); + } + + QString m_id; + QSize m_requestedSize; + QQuickTextureFactory *m_texture; +}; + +class AsyncImageProvider : public QQuickAsyncImageProvider +{ +public: + QQuickImageResponse *requestImageResponse(const QString &id, const QSize &requestedSize) + { + AsyncImageResponse *response = new AsyncImageResponse(id, requestedSize); + pool.start(response); + return response; + } + +private: + QThreadPool pool; +}; + + +class ImageProviderExtensionPlugin : public QQmlExtensionPlugin +{ + Q_OBJECT + Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QQmlExtensionInterface") +public: + void registerTypes(const char *uri) + { + Q_UNUSED(uri); + } + + void initializeEngine(QQmlEngine *engine, const char *uri) + { + Q_UNUSED(uri); + engine->addImageProvider("async", new AsyncImageProvider); + } + +}; + + +#define QQmlExtensionInterface_iid "org.qt-project.Qt.QQmlExtensionInterface" + +#include "imageresponseprovider.moc" diff --git a/examples/quick/imageresponseprovider/imageresponseprovider.pro b/examples/quick/imageresponseprovider/imageresponseprovider.pro new file mode 100644 index 0000000000..856ddde863 --- /dev/null +++ b/examples/quick/imageresponseprovider/imageresponseprovider.pro @@ -0,0 +1,15 @@ +TEMPLATE = lib +CONFIG += plugin +QT += qml quick + +DESTDIR = ImageResponseProviderCore +TARGET = qmlimageresponseproviderplugin + +SOURCES += imageresponseprovider.cpp + +EXAMPLE_FILES = imageresponseprovider-example.qml + +target.path = $$[QT_INSTALL_EXAMPLES]/quick/imageresponseprovider/ImageResponseProviderCore +qml.files = ImageResponseProviderCore/qmldir +qml.path = $$[QT_INSTALL_EXAMPLES]/quick/imageresponseprovider/ImageResponseProviderCore +INSTALLS = target qml diff --git a/examples/quick/imageresponseprovider/imageresponseprovider.qmlproject b/examples/quick/imageresponseprovider/imageresponseprovider.qmlproject new file mode 100644 index 0000000000..2bb4016996 --- /dev/null +++ b/examples/quick/imageresponseprovider/imageresponseprovider.qmlproject @@ -0,0 +1,14 @@ +import QmlProject 1.0 + +Project { + /* Include .qml, .js, and image files from current directory and subdirectories */ + QmlFiles { + directory: "." + } + JavaScriptFiles { + directory: "." + } + ImageFiles { + directory: "." + } +} diff --git a/examples/quick/quick.pro b/examples/quick/quick.pro index a412c53a65..c5ef46173c 100644 --- a/examples/quick/quick.pro +++ b/examples/quick/quick.pro @@ -20,6 +20,7 @@ SUBDIRS = quick-accessibility \ tutorials \ customitems \ imageprovider \ + imageresponseprovider \ window \ particles \ demos \ diff --git a/examples/quick/scenegraph/openglunderqml/squircle.cpp b/examples/quick/scenegraph/openglunderqml/squircle.cpp index 8ef975c5b6..2834b93e10 100644 --- a/examples/quick/scenegraph/openglunderqml/squircle.cpp +++ b/examples/quick/scenegraph/openglunderqml/squircle.cpp @@ -97,6 +97,7 @@ void Squircle::sync() } m_renderer->setViewportSize(window()->size() * window()->devicePixelRatio()); m_renderer->setT(m_t); + m_renderer->setWindow(window()); } //! [9] @@ -156,5 +157,9 @@ void SquircleRenderer::paint() m_program->disableAttributeArray(0); m_program->release(); + + // Not strictly needed for this example, but generally useful for when + // mixing with raw OpenGL. + m_window->resetOpenGLState(); } //! [5] diff --git a/examples/quick/scenegraph/openglunderqml/squircle.h b/examples/quick/scenegraph/openglunderqml/squircle.h index f797d7a7a5..28016def44 100644 --- a/examples/quick/scenegraph/openglunderqml/squircle.h +++ b/examples/quick/scenegraph/openglunderqml/squircle.h @@ -50,6 +50,7 @@ public: void setT(qreal t) { m_t = t; } void setViewportSize(const QSize &size) { m_viewportSize = size; } + void setWindow(QQuickWindow *window) { m_window = window; } public slots: void paint(); @@ -58,6 +59,7 @@ private: QSize m_viewportSize; qreal m_t; QOpenGLShaderProgram *m_program; + QQuickWindow *m_window; }; //! [1] |