diff options
Diffstat (limited to 'src/declarative/qml')
-rw-r--r-- | src/declarative/qml/qdeclarativecomponent.cpp | 28 | ||||
-rw-r--r-- | src/declarative/qml/qdeclarativeengine.cpp | 27 | ||||
-rw-r--r-- | src/declarative/qml/qdeclarativeinclude.cpp | 24 | ||||
-rw-r--r-- | src/declarative/qml/qdeclarativeproperty.cpp | 19 | ||||
-rw-r--r-- | src/declarative/qml/qdeclarativesqldatabase.cpp | 1 |
5 files changed, 61 insertions, 38 deletions
diff --git a/src/declarative/qml/qdeclarativecomponent.cpp b/src/declarative/qml/qdeclarativecomponent.cpp index 63bde0f..77fc925 100644 --- a/src/declarative/qml/qdeclarativecomponent.cpp +++ b/src/declarative/qml/qdeclarativecomponent.cpp @@ -147,32 +147,36 @@ class QByteArray; Components are reusable, encapsulated QML elements with well-defined interfaces. Components are often defined by \l {qdeclarativedocuments.html}{component files} - - that is, \c .qml files. The \e Component element allows components to be defined - within QML items rather than in a separate file. This may be useful for reusing - a small component within a QML file, or for defining a component that logically - belongs with other QML components within a file. + that is, \c .qml files. The \e Component element essentially allows QML components + to be defined inline, within a \l {QML Document}{QML document}, rather than as a separate QML file. + This may be useful for reusing a small component within a QML file, or for defining + a component that logically belongs with other QML components within a file. For example, here is a component that is used by multiple \l Loader objects. - It contains a top level \l Rectangle item: + It contains a single item, a \l Rectangle: \snippet doc/src/snippets/declarative/component.qml 0 Notice that while a \l Rectangle by itself would be automatically rendered and displayed, this is not the case for the above rectangle because it is defined inside a \c Component. The component encapsulates the - QML elements within, as if they were defined in a separate \c .qml + QML elements within, as if they were defined in a separate QML file, and is not loaded until requested (in this case, by the two \l Loader objects). - A Component cannot contain anything other - than an \c id and a single top level item. While the \c id is optional, - the top level item is not; you cannot define an empty component. + Defining a \c Component is similar to defining a \l {QML Document}{QML document}. + A QML document has a single top-level item that defines the behaviors and + properties of that component, and cannot define properties or behaviors outside + of that top-level item. In the same way, a \c Component definition contains a single + top level item (which in the above example is a \l Rectangle) and cannot define any + data outside of this item, with the exception of an \e id (which in the above example + is \e redSquare). - The Component element is commonly used to provide graphical components - for views. For example, the ListView::delegate property requires a Component + The \c Component element is commonly used to provide graphical components + for views. For example, the ListView::delegate property requires a \c Component to specify how each list item is to be displayed. - Component objects can also be dynamically created using + \c Component objects can also be created dynamically using \l{QML:Qt::createComponent()}{Qt.createComponent()}. */ diff --git a/src/declarative/qml/qdeclarativeengine.cpp b/src/declarative/qml/qdeclarativeengine.cpp index a8404f0..201e675 100644 --- a/src/declarative/qml/qdeclarativeengine.cpp +++ b/src/declarative/qml/qdeclarativeengine.cpp @@ -261,6 +261,33 @@ of their use. \endlist */ +/*! +\qmlmethod object Qt::include(string url, jsobject callback) + +Includes another JavaScript file. This method can only be used from within JavaScript files, +and not regular QML files. + +This imports all functions from \a url into the current script's namespace. + +Qt.include() returns an object that describes the status of the operation. The object has +a single property, \c {status}, that is set to one of the following values: + +\table +\header \o Symbol \o Value \o Description +\row \o result.OK \o 0 \o The include completed successfully. +\row \o result.LOADING \o 1 \o Data is being loaded from the network. +\row \o result.NETWORK_ERROR \o 2 \o A network error occurred while fetching the url. +\row \o result.EXCEPTION \o 3 \o A JavaScript exception occurred while executing the included code. +An additional \c exception property will be set in this case. +\endtable + +The \c status property will be updated as the operation progresses. + +If provided, \a callback is invoked when the operation completes. The callback is passed +the same object as is returned from the Qt.include() call. +*/ +// Qt.include() is implemented in qdeclarativeinclude.cpp + QDeclarativeEnginePrivate::QDeclarativeEnginePrivate(QDeclarativeEngine *e) : captureProperties(false), rootContext(0), isDebugging(false), diff --git a/src/declarative/qml/qdeclarativeinclude.cpp b/src/declarative/qml/qdeclarativeinclude.cpp index 1e240d7..a9ecdda 100644 --- a/src/declarative/qml/qdeclarativeinclude.cpp +++ b/src/declarative/qml/qdeclarativeinclude.cpp @@ -172,28 +172,8 @@ void QDeclarativeInclude::callback(QScriptEngine *engine, QScriptValue &callback } } -/*! -\qmlmethod object Qt::include(string url, jsobject callback) - -Include another JavaScript file. This method can only be used from within JavaScript files, -and not regular QML files. - -Qt.include() returns an object that describes the status of the operation. The object has -a single property, \c {status} that is set to one of the following values: - -\table -\header \o Symbol \o Value \o Description -\row \o result.OK \o 0 \o The include completed successfully. -\row \o result.LOADING \o 1 \o Data is being loaded from the network. -\row \o result.NETWORK_ERROR \o 2 \o A network error occurred while fetching the url. -\row \o result.EXCEPTION \o 3 \o A JavaScript exception occurred while executing the included code. -An additional \c exception property will be set in this case. -\endtable - -The return object's properties will be updated as the operation progresses. - -If provided, \a callback is invoked when the operation completes. The callback is passed -the same object as is returned from the Qt.include() call. +/* + Documented in qdeclarativeengine.cpp */ QScriptValue QDeclarativeInclude::include(QScriptContext *ctxt, QScriptEngine *engine) { diff --git a/src/declarative/qml/qdeclarativeproperty.cpp b/src/declarative/qml/qdeclarativeproperty.cpp index df0917f..60edd64 100644 --- a/src/declarative/qml/qdeclarativeproperty.cpp +++ b/src/declarative/qml/qdeclarativeproperty.cpp @@ -77,15 +77,28 @@ a property on a specific object instance. To read a property's value, programme QDeclarativeProperty instance and call the read() method. Likewise to write a property value the write() method is used. +For example, for the following QML code: + +\qml +// MyItem.qml +import QtQuick 1.0 + +Text { text: "A bit of text" } +\endqml + +The \l Text object's properties could be accessed using QDeclarativeProperty, like this: + \code +#include <QDeclarativeProperty> +#include <QGraphicsObject> -QObject *object = declarativeComponent.create(); +... -QDeclarativeProperty property(object, "font.pixelSize"); +QDeclarativeView view(QUrl::fromLocalFile("MyItem.qml")); +QDeclarativeProperty property(view.rootObject(), "font.pixelSize"); qWarning() << "Current pixel size:" << property.read().toInt(); property.write(24); qWarning() << "Pixel size should now be 24:" << property.read().toInt(); - \endcode */ diff --git a/src/declarative/qml/qdeclarativesqldatabase.cpp b/src/declarative/qml/qdeclarativesqldatabase.cpp index 45f277e..3f53111 100644 --- a/src/declarative/qml/qdeclarativesqldatabase.cpp +++ b/src/declarative/qml/qdeclarativesqldatabase.cpp @@ -375,7 +375,6 @@ static QScriptValue qmlsqldatabase_open_sync(QScriptContext *context, QScriptEng } else { created = !QFile::exists(basename+QLatin1String(".sqlite")); database = QSqlDatabase::addDatabase(QLatin1String("QSQLITE"), dbid); - QDir().mkpath(basename); if (created) { ini.setValue(QLatin1String("Name"), dbname); if (dbcreationCallback.isFunction()) |