qt-quick

I have Qt Creator 2.6.1. I created simple Qt Qucik 2.0 project from project templates and changed main.qml file on this: import QtQuick 2.0 Rectangle { width: 360 height: 360 color: "red" MouseArea { anchors.fill: parent onClicked: parent.height = 180 } } If i will click on rectangle it should be reduced in half. And it is occured, but window is not reduced. What is a best solution, if i want that main window must repeat geometry of main qml rectangle? UPDATE. One solution was found. See Amit Tomar answer. But is exist more easier solution, for example, using QtQuick 5.0: Qt Quick Window QML

My app uses both c++ and QML. I've defined several objects in C++ part to access SQL etc. It looks like: class MyObject : public QObject { Q_OBJECT public: MyObject(QObject *parent = 0); Q_INVOKABLE void someFunction(const QString &query); }; qmlRegisterType<MyObject>("xxx.xxx", 1, 0, "MyObject"); Ideally, I need to use these objects only in Javascript not in QML. I tried a lot of examples and read all the documentation but still can't solve my problem. So my questions: How can I instance in Javascript an object defined in C++? I tried var obj = Qt.createComponent("MyObject"); but it seems not

I'm new to Qt, and from what I've read on qt-project.org and other places; QtQuick seems like an attractive option because of its ability to work on both pointer and touch based devices. My problem is getting it to work well with c++. I decided to write a variant of Conway's Game of Life as a next step after "Hello World". I am thoroughly mystified as to how to get the "board" -- a [height][width][bytes-per-pixel] array of char -- integrated into the scene graph. Basically, the process is that the "LifeBoard" iterates through its rules and updates the char*/image. I've got this simple QML: ::

How can the font size of the text in a Button control be set in QML? The designer has not option, and 'font' is not a valid property of Button. Button { id: cmdQuit text: qsTr("Quit") width: 64 height: 32 } You set the Button's style property: import QtQuick 2.2 import QtQuick.Controls 1.2 import QtQuick.Controls.Styles 1.2 Rectangle { id: container width: 800 height: 800 Button { id: cmdQuit text: qsTr("Quit") width: 64 height: 32 style: ButtonStyle { label: Text { renderType: Text.NativeRendering verticalAlignment: Text.AlignVCenter horizontalAlignment: Text.AlignHCenter font.family:

How can i apply MVVM pattern in QtQuick applications? Can anybody give me any sample (simple) code? Thanks flex With a C++ ViewModel I know someone has done the same thing with a QML ViewModel and bi-directional binding for the text element for example. Bi-directional binding is done through the binding of the text property to the viewmodel property. Then, add a Binding node to bind the viewmodel property to the text property of the textinput. 来源： https://stackoverflow.com/questions/8533859/applying-mvvm-pattern-in-a-qtquick

I'm upgrading some Qt (C++ & QML) code from Qt4.8 to Qt5.1. The Qt4.8 code is a trivial C++ "QML viewer" app subclassing a QDeclarativeView , and a bunch of QML. It's been easy enough to change this to use Qt5/QtQuick2's QQuickView except for one thing: The Qt4.8 app has a method for printing to PDF: void MyQMLViewer::printToPDF(const QString& filename) const { QPrinter printer(QPrinter::HighResolution); printer.setOutputFormat(QPrinter::PdfFormat); printer.setPageSize(QPrinter::A3); printer.setOutputFileName(filename); printer.setOrientation(QPrinter::Landscape); QPainter painter(&printer);

I really like QML. I like how I can define components (comparable to classes) and their properties, and instantiate them from somewhere else (comparable to objects). I can define, let's say, a button, having some look and feel, and a label text on it. This could be done, for example, using this component definition ( Button.qml ): Item { id: button property string label anchors.fill: parent Rectangle { anchors.fill: parent radius: 10 color: "gray" Text { anchors.centerIn: parent font.pixelSize: 20 text: button.label color: "white" } } } and instanciated in this main file ( main.qml ):