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  1. Qt
  2. QTBUG-70613

Widget double property values truncated/rounded by uic

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P3: Somewhat important
    • Resolution: Done
    • Affects Version/s: 5.7.1, 5.9.4, 5.11.1
    • Fix Version/s: None
    • Component/s: Build tools: uic
    • Labels:
      None

      Description

      Observed specifically with QDoubleSpinBox (but most likely not limited to that).

      Typed/shown in Designer properties editor (decimals is default of 2):

      minimum:  -21474836.450000
      maximum:   21474836.650000
      

      XML (.ui file):

      <widget class="QDoubleSpinBox" name="A3">
          ...
        <property name="minimum">
         <double>-21474836.449999999254942</double>
        </property>
        <property name="maximum">
         <double>21474836.649999998509884</double>
        </property>
      </widget>
      

      Generated C++:

              A3->setMinimum(-2.14748e+7);
              A3->setMaximum(2.14748e+7);
      

      The result is incorrect min/max values. Workaround is to set them manually in C++ after UI setup.

      I'm guessing this is caused by
      uic/cpp/cppwriteinitialization.cpp:1410

              case DomProperty::Double:
                  propertyValue = QString::number(p->elementDouble());
                  break;
      

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            People

            Assignee:
            jkobus Jarek Kobus
            Reporter:
            mpaperno Maxim Paperno
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              Dates

              Created:
              Updated:
              Resolved:

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