Center and Resize MainWindow: Difference between revisions

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The following method computes the final size of the window setting it so it covers the 90% of the whole screen available space, and then centers it (left-to-right flow):


= Center and Resize the MainWindow on the current screen =
<code>
 
void MainWindow::centerAndResize() {
The following method computes the final size of the window setting it so it covers the 90% of the whole screen available space, and then centers it (left-to-right flow):
    // get the dimension available on this screen
    QSize availableSize = qApp->desktop()->availableGeometry().size();
    int width = availableSize.width();
    int height = availableSize.height();
    qDebug() << "Available dimensions " << width << "x" << height;
    width *= 0.9; // 90% of the screen size
    height *= 0.9; // 90% of the screen size
    qDebug() << "Computed dimensions " << width << "x" << height;
    QSize newSize( width, height );


<code>void MainWindow::centerAndResize(){<br /> // get the dimension available on this screen<br /> QSize availableSize = qApp-&gt;desktop()<s>&gt;availableGeometry().size();<br /> int width = availableSize.width();<br /> int height = availableSize.height();<br /> qDebug() &lt;&lt; &quot;Available dimensions &quot; &lt;&lt; width &lt;&lt; &quot;x&amp;quot; &lt;&lt; height;<br /> width '''= 0.9; // 90% of the screen size<br /> height'''= 0.9; // 90% of the screen size<br /> qDebug() &lt;&lt; &quot;Computed dimensions &quot; &lt;&lt; width &lt;&lt; &quot;x&amp;quot; &lt;&lt; height;<br /> QSize newSize( width, height );
    setGeometry(
<br /> setGeometry(<br /> QStyle::alignedRect( Qt::LeftToRight,<br /> Qt::AlignCenter,<br /> newSize,<br /> qApp</s>&gt;desktop()-&gt;availableGeometry() )<br /> );
        QStyle::alignedRect(  
            Qt::LeftToRight,
            Qt::AlignCenter,
            newSize,
            qApp->desktop()->availableGeometry()
        )
    );
}
</code>

Latest revision as of 07:28, 5 February 2018

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The following method computes the final size of the window setting it so it covers the 90% of the whole screen available space, and then centers it (left-to-right flow):

void MainWindow::centerAndResize() {
    // get the dimension available on this screen
    QSize availableSize = qApp->desktop()->availableGeometry().size();
    int width = availableSize.width();
    int height = availableSize.height();
    qDebug() << "Available dimensions " << width << "x" << height;
    width *= 0.9; // 90% of the screen size
    height *= 0.9; // 90% of the screen size
    qDebug() << "Computed dimensions " << width << "x" << height;
    QSize newSize( width, height );

    setGeometry(
        QStyle::alignedRect( 
            Qt::LeftToRight,
            Qt::AlignCenter,
            newSize,
            qApp->desktop()->availableGeometry()
        )
    );
}