ubuntu-sdk-bugs team mailing list archive

[Michał Sawicz <michal.sawicz@xxxxxxxxxxxxx>]

Public bug reported:

Given the below QML:

import QtQuick 2.4

Text {
    id: text
    text: 'foobar'
    color: foobar

    property color foobar: Qt.rgba(0, 0, 0, 0.5)
    property color foobar2: foobar

    Component.onCompleted: {
        console.log("text:", text.color, foobar, Qt.colorEqual(text.color, foobar), text.color.a);
        console.log("property:", foobar2, foobar, Qt.colorEqual(foobar2, foobar), foobar2.a);
        /*
            qml: text: #80000000 #80000000 false 0.5019607843137255
            qml: property: #80000000 #80000000 true 0.5000076295109483
        */
    }
}

Seems that Text.color stores the colour with a different precision,
resulting in Qt.colorEqual() returning false.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: libqt5quick5 5.6.1-4ubuntu3~xenialoverlay1~1 [origin: LP-PPA-ci-train-ppa-service-stable-phone-overlay]
ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
Uname: Linux 4.4.0-36-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Sep  1 14:40:27 2016
InstallationDate: Installed on 2016-05-06 (117 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
SourcePackage: qtdeclarative-opensource-src
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: qtdeclarative-opensource-src (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug third-party-packages xenial

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Ubuntu.
https://bugs.launchpad.net/bugs/1619281

Title:
  Text.color can't be compared reliably

Status in qtdeclarative-opensource-src package in Ubuntu:
  New

Bug description:
  Given the below QML:

  import QtQuick 2.4

  Text {
      id: text
      text: 'foobar'
      color: foobar

      property color foobar: Qt.rgba(0, 0, 0, 0.5)
      property color foobar2: foobar

      Component.onCompleted: {
          console.log("text:", text.color, foobar, Qt.colorEqual(text.color, foobar), text.color.a);
          console.log("property:", foobar2, foobar, Qt.colorEqual(foobar2, foobar), foobar2.a);
          /*
              qml: text: #80000000 #80000000 false 0.5019607843137255
              qml: property: #80000000 #80000000 true 0.5000076295109483
          */
      }
  }

  Seems that Text.color stores the colour with a different precision,
  resulting in Qt.colorEqual() returning false.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: libqt5quick5 5.6.1-4ubuntu3~xenialoverlay1~1 [origin: LP-PPA-ci-train-ppa-service-stable-phone-overlay]
  ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
  Uname: Linux 4.4.0-36-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Sep  1 14:40:27 2016
  InstallationDate: Installed on 2016-05-06 (117 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  SourcePackage: qtdeclarative-opensource-src
  UpgradeStatus: No upgrade log present (probably fresh install)

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