aspect-ratio

How is it possible to maintain widgets aspect ratio in Qt and what about centering the widget? Marc Mutz - mmutz You don't have to implement your own layout manager. You can do with inheriting QWidget and reimplementing int QWidget::heightForWidth( int w ) { return w; } to stay square. However, heightForWidth() doesn't work on toplevel windows on X11, since apparently the X11 protocol doesn't support that. As for centering, you can pass Qt::AlignCenter as the third parameter of QBoxLayout::addWidget() or the fifth parameter of QGridLayout::addWidget() . Note: In newer versions of Qt at least,

I am loading an image to an imageview with mode as 'Aspect Fit'. I need to know the size to which my image is being scaled to. Please help. Please see @Paul-de-Lange's answer instead of this one I couldn't find anything in an easily accessible variable that had this, so here is the brute force way: - (CGSize) aspectScaledImageSizeForImageView:(UIImageView *)iv image:(UIImage *)im { float x,y; float a,b; x = iv.frame.size.width; y = iv.frame.size.height; a = im.size.width; b = im.size.height; if ( x == a && y == b ) { // image fits exactly, no scaling required // return iv.frame.size; } else if

When I set up equal aspect ratio for 3d graph the z-axis does not change to 'equal'. So, this: fig = pylab.figure() mesFig = fig.gca(projection='3d', adjustable='box') mesFig.axis('equal') mesFig.plot(xC, yC, zC, 'r.') mesFig.plot(xO, yO, zO, 'b.') pyplot.show() gives me the following: where obviously the unit length of z-axis is not equal to x- and y-units. How can I make the unit length of all three axes equal? All the solutions I could find did not work. Thank you. I believe matplotlib does not yet set correctly equal axis in 3D... But I found a trick some times ago (I don't remember where)

If not, is there a list of screen resolutions for the most popular Android phones and tablets. Oliver Pearmain (out of date) Spreadsheet of device metrics. SEE ALSO: Device Metrics - Material Design . Screen Sizes . --------------------------- ----- ------------ --------------- ------- ----------- ---------------- --- ---------- Device Inches ResolutionPX Density DPI ResolutionDP AspectRatios SysNavYorN ContentResolutionDP --------------------------- ----- ------------ --------------- ------- ----------- ---------------- --- ---------- Galaxy Y 320 x 240 ldpi 0.75 120 427 x 320 4:3 1.3333 427