// checksum 0x3fbf version 0x70013
/*
This file was generated by the Qt Quick Application wizard of Qt Creator.
QmlApplicationViewer is a convenience class containing mobile device specific
code such as screen orientation handling. Also QML paths and debugging are
handled here.
It is recommended not to modify this file, since newer versions of Qt Creator
may offer an updated version of it.
*/
#include "qmlapplicationviewer.h"
#include <QDir>
#include <QFileInfo>
#include <QApplication>
#include <QDeclarativeComponent>
#include <QDeclarativeEngine>
#include <QDeclarativeContext>
#include <qplatformdefs.h> // MEEGO_EDITION_HARMATTAN
#ifdef HARMATTAN_BOOSTER
#include <MDeclarativeCache>
#endif
#if defined(QMLJSDEBUGGER) && QT_VERSION < 0x040800
#include <qt_private/qdeclarativedebughelper_p.h>
#if !defined(NO_JSDEBUGGER)
#include <jsdebuggeragent.h>
#endif
#if !defined(NO_QMLOBSERVER)
#include <qdeclarativeviewobserver.h>
#endif
// Enable debugging before any QDeclarativeEngine is created
struct QmlJsDebuggingEnabler
{
QmlJsDebuggingEnabler()
{
QDeclarativeDebugHelper::enableDebugging();
}
};
// Execute code in constructor before first QDeclarativeEngine is instantiated
static QmlJsDebuggingEnabler enableDebuggingHelper;
#endif // QMLJSDEBUGGER
class QmlApplicationViewerPrivate
{
QString mainQmlFile;
friend class QmlApplicationViewer;
static QString adjustPath(const QString &path);
};
QString QmlApplicationViewerPrivate::adjustPath(const QString &path)
{
#ifdef Q_OS_UNIX
#ifdef Q_OS_MAC
if (!QDir::isAbsolutePath(path))
return QString::fromLatin1("%1/../Resources/%2")
.arg(QCoreApplication::applicationDirPath(), path);
#else
const QString pathInInstallDir =
QString::fromLatin1("%1/../%2").arg(QCoreApplication::applicationDirPath(), path);
if (QFileInfo(pathInInstallDir).exists())
return pathInInstallDir;
#endif
#endif
return path;
}
QmlApplicationViewer::QmlApplicationViewer(QWidget *parent)
: QDeclarativeView(parent)
, d(new QmlApplicationViewerPrivate())
{
connect(engine(), SIGNAL(quit()), SLOT(close()));
setResizeMode(QDeclarativeView::SizeRootObjectToView);
// Qt versions prior to 4.8.0 don't have QML/JS debugging services built in
#if defined(QMLJSDEBUGGER) && QT_VERSION < 0x040800
#if !defined(NO_JSDEBUGGER)
new QmlJSDebugger::JSDebuggerAgent(engine());
#endif
#if !defined(NO_QMLOBSERVER)
new QmlJSDebugger::QDeclarativeViewObserver(this, this);
#endif
#endif
}
QmlApplicationViewer::~QmlApplicationViewer()
{
delete d;
}
QmlApplicationViewer *QmlApplicationViewer::create()
{
return new QmlApplicationViewer();
}
void QmlApplicationViewer::setMainQmlFile(const QString &file)
{
d->mainQmlFile = QmlApplicationViewerPrivate::adjustPath(file);
setSource(QUrl::fromLocalFile(d->mainQmlFile));
}
void QmlApplicationViewer::addImportPath(const QString &path)
{
engine()->addImportPath(QmlApplicationViewerPrivate::adjustPath(path));
}
void QmlApplicationViewer::setOrientation(ScreenOrientation orientation)
{
#if defined(Q_OS_SYMBIAN)
// If the version of Qt on the device is < 4.7.2, that attribute won't work
if (orientation != ScreenOrientationAuto) {
const QStringList v = QString::fromLatin1(qVersion()).split(QLatin1Char('.'));
if (v.count() == 3 && (v.at(0).toInt() << 16 | v.at(1).toInt() << 8 | v.at(2).toInt()) < 0x040702) {
qWarning("Screen orientation locking only supported with Qt 4.7.2 and above");
return;
}
}
#endif // Q_OS_SYMBIAN
Qt::WidgetAttribute attribute;
switch (orientation) {
#if QT_VERSION < 0x040702
// Qt < 4.7.2 does not yet have the Qt::WA_*Orientation attributes
case ScreenOrientationLockPortrait:
attribute = static_cast<Qt::WidgetAttribute>(128);
break;
case ScreenOrientationLockLandscape:
attribute = static_cast<Qt::WidgetAttribute>(129);
break;
default:
case ScreenOrientationAuto:
attribute = static_cast<Qt::WidgetAttribute>(130);
break;
#else // QT_VERSION < 0x040702
case ScreenOrientationLockPortrait:
attribute = Qt::WA_LockPortraitOrientation;
break;
case ScreenOrientationLockLandscape:
attribute = Qt::WA_LockLandscapeOrientation;
break;
default:
case ScreenOrientationAuto:
attribute = Qt::WA_AutoOrientation;
break;
#endif // QT_VERSION < 0x040702
};
setAttribute(attribute, true);
}
void QmlApplicationViewer::showExpanded()
{
#if defined(Q_OS_SYMBIAN) || defined(MEEGO_EDITION_HARMATTAN) || defined(Q_WS_SIMULATOR)
showFullScreen();
#elif defined(Q_WS_MAEMO_5)
showMaximized();
#else
show();
#endif
}
QApplication *createApplication(int &argc, char **argv)
{
#ifdef HARMATTAN_BOOSTER
return MDeclarativeCache::qApplication(argc, argv);
#else
return new QApplication(argc, argv);
#endif
}
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温馨提示
现在做开发越来越多地使用qml语言进行ui开发了,因为qml可以快速简单地进行开发。qml其实也是基于qt框架上的,所以很多地一些知识都是从C++哪里可以找得到原型的。在使用qml开发界面就会少不了要与从qt进行数据的交换了。qml负责ui部分,而qt负责逻辑控制部分,各分职责。为什么要这样呢?qml作为ui界面的写法是有原因的,qml从设计开始就时着重与ui的快速开发,所以在逻辑控制上会弱很多,特别是在网络通讯上面就必须要qt这边实现了。这篇经验时介绍如何使用Qt与qml的数据交互。
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qml.rar (26个子文件)
qml
qtandqml
qtandqml 39KB
qtandqml.desktop 221B
test.cpp 397B
qml
qtandqml
main.qml 315B
moc_qmlapplicationviewer.o 10KB
moc_test.cpp 4KB
qmlapplicationviewer.o 8KB
qrc_qm.cpp 4KB
qrc_qm.o 4KB
moc_qmlapplicationviewer.cpp 2KB
qtandqml_harmattan.desktop 286B
qm.qrc 100B
qtandqml.pro.user 26KB
qmlapplicationviewer
qmlapplicationviewer.h 1KB
qmlapplicationviewer.cpp 5KB
qmlapplicationviewer.pri 5KB
test.o 3KB
test.h 500B
qtandqml64.png 3KB
main.cpp 502B
Makefile 10KB
main.o 6KB
qtandqml.svg 6KB
qtandqml80.png 5KB
moc_test.o 8KB
qtandqml.pro 1KB
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