[SOLVED] QInputDialog::getDouble : Width issue

Anthony Fr

Hi everybody,

I'm upgrading my software from Qt 4.7.4 to Qt 5.4.0 Beta (I'm waiting for the release the 4th Dec).

I find a weird issue and I want to be sure it's not a mistake from myself before post a bug report.

If I call the method QInputDialog::getDouble (from the context menu of my QGLWidget inherited class) like that:
@
void CViewer3D_v2::ZFar()
{
bool ok;
double value = QInputDialog::getDouble(this, "zFar", "Enter a decimal number", xd_ZFar, 0, DBL_MAX, 2, &ok);
if(ok)
{
SetZFar(value);
}
}
@

The dialog has a really big width, more than my screen can display, I think it's something like 1800px.
Although, if I call in the same context QInputDialog::getInt method, I don't get any trouble.

Have any idea, please?

SGaist

Hi,

Intriguing, can you reproduce this with a minimal compilable example ?

Anthony Fr

Hi,

Yes, I can. If I create an empty project and the same lines, I get the same width issue:
@
#include "qinputdialogtest.h"

#include <QInputDialog>

QInputDialogTest::QInputDialogTest(QWidget *parent)
: QMainWindow(parent)
{
ui.setupUi(this);
bool ok;
double value = QInputDialog::getDouble(this, "zFar", "Enter a decimal number", 30., 0, DBL_MAX, 2, &ok);
}
@

Here the result on my screens:
!http://imgur.com/MQU5gpF(QInputDialog::getDouble UI result)!

Edit: I failed to post the image, please follow this link imgur link:
"http://imgur.com/MQU5gpF":http://imgur.com/MQU5gpF

SGaist

Looks like it's because of DBL_MAX. Most likely, the widget is expanded to allow showing the maximum double value which it pretty big.