qt-quick

I want to use an QAbstractListModel derived model in QML. Binding the model to views already works great. The next thing I want achieve is the ability to access specific items and their role like it is possible with a QML ListModel grid.model.get(index).DisplayRole But I have no idea how to implement this get method in my QAbstractListModel derived model. Any hints? You can add an Q_INVOKABLE function to the QAbstractItemModel derived class like this: ... Q_INVOKABLE QVariantMap get(int row); ... QVariantMap get(int row) { QHash<int,QByteArray> names = roleNames(); QHashIterator<int,

Is there a way to make the window of a qml application transparent? I'm looking for a detailed description on how to draw simple shapes with qml while making the window of the application transparent, as well as the background. A working source code demo would be awesome. Here is a simple example: main.cpp : #include <QtGui/QApplication> #include "mainwindow.h" int main(int argc, char *argv[]) { QApplication a(argc, argv); MainWindow w; w.show(); return a.exec(); } mainwindow.h : #ifndef MAINWINDOW_H #define MAINWINDOW_H #include <QDeclarativeView> class MainWindow : public QDeclarativeView {

I've created a timer QML app, and I'm using Timer qml component. The interval is set to 1000 milliseconds (the default one)... but it seems to be working properly only when the app is with focus on it. When I put it in background it seems that it's not triggered every time, and because of that I got some mistakes in the app. I've tried to find anything related to that in the documentation, but I couldn't The timer code is really simple: Timer { id: timer repeat: true onTriggered: {msRemaining -= 1000; Core.secondsToText(type);} } Anyone has any idea about that and how to fix it? Versions: Qt 5

The look and feel I'm trying to go for is to have a solid color button, and text on it like "Hello World" where the text is completely transparent, and the background shows through the button. In other words, having text as a transparency mask on a button element. Here is one way to do it: // TB.qml MouseArea { width: txt.contentWidth + 20 height: txt.contentHeight + 10 property alias text: txt.text property alias color: sh.color ShaderEffect { id: sh anchors.fill: parent property color color: "red" property var source : ShaderEffectSource { sourceRect: Qt.rect(0, 0, sh.width, sh.height)

I need to manipulate QML items through QMatrix4x4, in order to apply some perspective transformations. Basically, I defined the class Transform to use an object QMatrix4x4 as argument for the transform field of the QML Item class Transform : public QQuickTransform{ Q_OBJECT Q_PROPERTY(QMatrix4x4 matrix READ matrix WRITE setMatrix NOTIFY matrixChanged) public: explicit Transform(QQuickItem *parent = 0); QMatrix4x4 matrix() const; void setMatrix(QMatrix4x4 matrix); virtual void applyTo(QMatrix4x4 *matrix) const; signals: void matrixChanged(); private: QMatrix4x4 m_matrix; }; where void Transform