StackedWidget not visible in DockWidget

[Bob K.]

Qt 6
Windows 11
C++
Qt Creator
Qt Widgets Project

I have a dockWidget, and in the dockWidget is a stackWidget. The stackWidget has 4 pages, and each page has several buttons. When I run the app none of the page buttons are visible. I've tried putting the stackWidget directly into the dockWidget, and placing the stackWidget into a vertical layout which is in the dockWidget. Not sure what I'm doing wrong.
Bob K.

[Bob K.]

Now working!

[SGaist]

Hi,

Please show the code you use.

The basic pattern with QDockWidget is along the line of:

QWidget *widget = new QWidget;
// Add what you need to it
QDockWidget *dockWidget = new QDockWidget;
dockWidget->setWidget(widget);

[Bob K.]

I'm using Qt Creator.

Here's the ui code:

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>1000</width>
    <height>650</height>
   </rect>
  </property>
  <property name="minimumSize">
   <size>
    <width>1000</width>
    <height>650</height>
   </size>
  </property>
  <property name="windowTitle">
   <string>EES Photography</string>
  </property>
  <property name="windowIcon">
   <iconset resource="resources.qrc">
    <normaloff>:/img/images/EES.ico</normaloff>:/img/images/EES.ico</iconset>
  </property>
  <widget class="QWidget" name="centralwidget">
   <layout class="QVBoxLayout" name="verticalLayout_2">
    <item>
     <widget class="QTabWidget" name="tabWidgetData">
      <property name="tabShape">
       <enum>QTabWidget::Rounded</enum>
      </property>
      <property name="currentIndex">
       <number>0</number>
      </property>
      <property name="tabBarAutoHide">
       <bool>false</bool>
      </property>
      <widget class="QWidget" name="tabSession">
       <attribute name="title">
        <string>Session</string>
       </attribute>
       <layout class="QVBoxLayout" name="verticalLayout_4">
        <item>
         <layout class="QHBoxLayout" name="horizontalLayout_7">
          <item>
           <layout class="QVBoxLayout" name="verticalLayout">
            <item>
             <layout class="QHBoxLayout" name="horizontalLayout_5">
              <item>
               <widget class="QLabel" name="labelIdentifier">
                <property name="minimumSize">
                 <size>
                  <width>80</width>
                  <height>0</height>
                 </size>
                </property>
                <property name="text">
                 <string>Identifier</string>
                </property>
                <property name="alignment">
                 <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
                </property>
               </widget>
              </item>
              <item>
               <widget class="QLineEdit" name="lineEditIdentifier"/>
              </item>
             </layout>
            </item>
            <item>
             <layout class="QFormLayout" name="formLayout_4">
              <item row="0" column="0">
               <widget class="QLabel" name="labelSessionType">
                <property name="minimumSize">
                 <size>
                  <width>80</width>
                  <height>0</height>
                 </size>
                </property>
                <property name="text">
                 <string>Session Type</string>
                </property>
                <property name="alignment">
                 <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
                </property>
               </widget>
              </item>
              <item row="0" column="1">
               <widget class="QComboBox" name="comboBoxSessionType"/>
              </item>
             </layout>
            </item>
           </layout>
          </item>
          <item>
           <layout class="QVBoxLayout" name="verticalLayout_3">
            <item>
             <layout class="QHBoxLayout" name="horizontalLayout_6">
              <item>
               <widget class="QLabel" name="labelCamera">
                <property name="minimumSize">
                 <size>
                  <width>60</width>
                  <height>0</height>
                 </size>
                </property>
                <property name="text">
                 <string>Camera</string>
                </property>
                <property name="alignment">
                 <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
                </property>
               </widget>
              </item>
              <item>
               <widget class="QLineEdit" name="lineEdit_2"/>
              </item>
             </layout>
            </item>
            <item>
             <layout class="QFormLayout" name="formLayout_5">
              <item row="0" column="0">
               <widget class="QLabel" name="labelDate">
                <property name="minimumSize">
                 <size>
                  <width>60</width>
                  <height>0</height>
                 </size>
                </property>
                <property name="text">
                 <string>Date</string>
                </property>
                <property name="alignment">
                 <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
                </property>
               </widget>
              </item>
              <item row="0" column="1">
               <widget class="QDateTimeEdit" name="dateTimeEdit"/>
              </item>
             </layout>
            </item>
           </layout>
          </item>
         </layout>
        </item>
        <item>
         <widget class="QTabWidget" name="tabWidget">
          <property name="currentIndex">
           <number>0</number>
          </property>
          <widget class="QWidget" name="tab_9">
           <attribute name="title">
            <string>Analog</string>
           </attribute>
          </widget>
          <widget class="QWidget" name="tab_10">
           <attribute name="title">
            <string>Digital</string>
           </attribute>
          </widget>
          <widget class="QWidget" name="tab_11">
           <attribute name="title">
            <string>Contact Sheet</string>
           </attribute>
          </widget>
         </widget>
        </item>
        <item>
         <widget class="QLabel" name="labelNotes">
          <property name="text">
           <string>Notes</string>
          </property>
         </widget>
        </item>
        <item>
         <widget class="QPlainTextEdit" name="plainTextEdit">
          <property name="sizePolicy">
           <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
            <horstretch>0</horstretch>
            <verstretch>0</verstretch>
           </sizepolicy>
          </property>
          <property name="maximumSize">
           <size>
            <width>16777215</width>
            <height>60</height>
           </size>
          </property>
         </widget>
        </item>
        <item>
         <layout class="QHBoxLayout" name="horizontalLayout_4">
          <item>
           <widget class="QPushButton" name="pushButtonSave">
            <property name="text">
             <string>Save</string>
            </property>
           </widget>
          </item>
          <item>
           <widget class="QPushButton" name="pushButtonDelete">
            <property name="text">
             <string>Delete</string>
            </property>
           </widget>
          </item>
          <item>
           <widget class="QPushButton" name="pushButtonCancel">
            <property name="text">
             <string>Cancel</string>
            </property>
           </widget>
          </item>
         </layout>
        </item>
       </layout>
      </widget>
      <widget class="QWidget" name="tabExposure">
       <attribute name="title">
        <string>Exposure</string>
       </attribute>
      </widget>
      <widget class="QWidget" name="tabOutput">
       <attribute name="title">
        <string>Output</string>
       </attribute>
      </widget>
      <widget class="QWidget" name="tabSearch">
       <attribute name="title">
        <string>Search</string>
       </attribute>
      </widget>
     </widget>
    </item>
   </layout>
  </widget>
  <widget class="QMenuBar" name="menubar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>1000</width>
     <height>26</height>
    </rect>
   </property>
   <widget class="QMenu" name="menuFile">
    <property name="title">
     <string>File</string>
    </property>
    <addaction name="actionExit"/>
   </widget>
   <widget class="QMenu" name="menuExit">
    <property name="title">
     <string>Edit</string>
    </property>
    <addaction name="actionCut"/>
    <addaction name="actionCopy"/>
    <addaction name="actionPaste"/>
   </widget>
   <widget class="QMenu" name="menuHelp">
    <property name="title">
     <string>Help</string>
    </property>
    <addaction name="actionAbout"/>
   </widget>
   <addaction name="menuFile"/>
   <addaction name="menuExit"/>
   <addaction name="menuHelp"/>
  </widget>
  <widget class="QStatusBar" name="statusbar"/>
  <widget class="QDockWidget" name="dockWidgetLookup">
   <property name="minimumSize">
    <size>
     <width>422</width>
     <height>500</height>
    </size>
   </property>
   <property name="features">
    <set>QDockWidget::DockWidgetFloatable|QDockWidget::DockWidgetMovable</set>
   </property>
   <property name="allowedAreas">
    <set>Qt::LeftDockWidgetArea|Qt::RightDockWidgetArea</set>
   </property>
   <attribute name="dockWidgetArea">
    <number>1</number>
   </attribute>
   <widget class="QWidget" name="dockWidgetContents">
    <property name="focusPolicy">
     <enum>Qt::NoFocus</enum>
    </property>
    <layout class="QVBoxLayout" name="verticalLayout_5">
     <item>
      <widget class="QStackedWidget" name="stackedWidget">
       <property name="autoFillBackground">
        <bool>true</bool>
       </property>
       <property name="frameShape">
        <enum>QFrame::NoFrame</enum>
       </property>
       <property name="currentIndex">
        <number>3</number>
       </property>
       <widget class="QWidget" name="pageOutput">
        <property name="autoFillBackground">
         <bool>true</bool>
        </property>
        <layout class="QHBoxLayout" name="horizontalLayout_2">
         <item>
          <widget class="QPushButton" name="pushButton_3">
           <property name="text">
            <string>PushButton</string>
           </property>
          </widget>
         </item>
        </layout>
       </widget>
       <widget class="QWidget" name="pageExosure">
        <property name="autoFillBackground">
         <bool>true</bool>
        </property>
        <layout class="QHBoxLayout" name="horizontalLayout">
         <item>
          <widget class="QPushButton" name="pushButton_2">
           <property name="text">
            <string>PushButton</string>
           </property>
          </widget>
         </item>
        </layout>
       </widget>
       <widget class="QWidget" name="pageSearch">
        <property name="autoFillBackground">
         <bool>true</bool>
        </property>
        <layout class="QVBoxLayout" name="verticalLayout_6">
         <item>
          <widget class="QPushButton" name="pushButton_4">
           <property name="text">
            <string>PushButton</string>
           </property>
          </widget>
         </item>
        </layout>
       </widget>
       <widget class="QWidget" name="pageSession">
        <property name="autoFillBackground">
         <bool>true</bool>
        </property>
        <layout class="QVBoxLayout" name="verticalLayout_8">
         <item>
          <layout class="QHBoxLayout" name="horizontalLayout_9">
           <item>
            <widget class="QPushButton" name="pushButtonClear_2">
             <property name="maximumSize">
              <size>
               <width>100</width>
               <height>16777215</height>
              </size>
             </property>
             <property name="text">
              <string>Clear</string>
             </property>
            </widget>
           </item>
           <item>
            <widget class="QLineEdit" name="lineEditSearch_2"/>
           </item>
           <item>
            <widget class="QPushButton" name="pushButtonSearch_2">
             <property name="maximumSize">
              <size>
               <width>100</width>
               <height>16777215</height>
              </size>
             </property>
             <property name="text">
              <string>Search</string>
             </property>
            </widget>
           </item>
          </layout>
         </item>
         <item>
          <layout class="QVBoxLayout" name="verticalLayout_7">
           <item>
            <widget class="QLabel" name="labelSession">
             <property name="text">
              <string>Session</string>
             </property>
            </widget>
           </item>
           <item>
            <widget class="QTableWidget" name="tableWidgetSessioLookup_2"/>
           </item>
           <item>
            <widget class="QPushButton" name="pushButton">
             <property name="text">
              <string>PushButton</string>
             </property>
            </widget>
           </item>
          </layout>
         </item>
        </layout>
       </widget>
      </widget>
     </item>
    </layout>
   </widget>
  </widget>
  <action name="actionExit">
   <property name="icon">
    <iconset resource="resources.qrc">
     <normaloff>:/img/images/Exit.png</normaloff>:/img/images/Exit.png</iconset>
   </property>
   <property name="text">
    <string>Exit</string>
   </property>
  </action>
  <action name="actionCut">
   <property name="icon">
    <iconset resource="resources.qrc">
     <normaloff>:/img/images/Cut.png</normaloff>:/img/images/Cut.png</iconset>
   </property>
   <property name="text">
    <string>Cut</string>
   </property>
  </action>
  <action name="actionCopy">
   <property name="icon">
    <iconset resource="resources.qrc">
     <normaloff>:/img/images/Copy.png</normaloff>:/img/images/Copy.png</iconset>
   </property>
   <property name="text">
    <string>Copy</string>
   </property>
  </action>
  <action name="actionPaste">
   <property name="icon">
    <iconset resource="resources.qrc">
     <normaloff>:/img/images/Paste.png</normaloff>:/img/images/Paste.png</iconset>
   </property>
   <property name="text">
    <string>Paste</string>
   </property>
  </action>
  <action name="actionAbout">
   <property name="icon">
    <iconset resource="resources.qrc">
     <normaloff>:/img/images/AboutBox.png</normaloff>:/img/images/AboutBox.png</iconset>
   </property>
   <property name="text">
    <string>About</string>
   </property>
  </action>
 </widget>
 <tabstops>
  <tabstop>lineEditIdentifier</tabstop>
  <tabstop>comboBoxSessionType</tabstop>
  <tabstop>lineEdit_2</tabstop>
  <tabstop>dateTimeEdit</tabstop>
  <tabstop>tabWidget</tabstop>
  <tabstop>plainTextEdit</tabstop>
  <tabstop>pushButtonSave</tabstop>
  <tabstop>pushButtonDelete</tabstop>
  <tabstop>pushButtonCancel</tabstop>
 </tabstops>
 <resources>
  <include location="resources.qrc"/>
 </resources>
 <connections/>

</ui>

[Bob K.]

Also, I'm in north central Florida, so if I don't get back with you right away, we've lost power :)

[SGaist]

Are you sure it's not your stacked widget that is showing the wrong widget ?

That said, I would split that QMainWindow in smaller widgets to improve encapsulation.

[Bob K.]

The stacked widget is not displaying any widgets.

I'm not sure what you mean by splitting the main window into smaller widgets? The main window contains a tab widget, which is where all the data will be displayed.

The dock widget contains a list of database entries. Once an entry is selected, any data manipulation will take place in the tab widget. That's why I wanted dock widget to be moveable.

[ChrisW67]

Your UI works correctly on Linux, Qt 6.3.1.

The dock widget has no controls to navigate between the pages, so you only see pageSession (the currentIndex).

Are you able to post an image of what you see?
Are you able to try a different Qt version?

[Bob K.]

Screen shot and Qt Creator System Information files attached. 

[Bob K.]

Qt Creator System Information file

[Bob K.]

Qt Creator System Information, one more time...

{noformat}
Qt 6.3.1 (x86_64-little_endian-llp64 shared (dynamic) release build; by MSVC 2019) on "windows"
OS: Windows 11 Version 2009 [winnt version 10.0.22621]

Architecture: x86_64; features: SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2

Environment:
QtMsBuild="C:\Users\rkama\AppData\Local\QtMsBuild"

Features: QT_NO_EXCEPTIONS

Library info:
PrefixPath: C:\Qt\Tools\QtCreator\bin
DocumentationPath: C:\Qt\Tools\QtCreator\bin\doc
HeadersPath: C:\Qt\Tools\QtCreator\bin\include
LibrariesPath: C:\Qt\Tools\QtCreator\bin
LibraryExecutablesPath: C:\Qt\Tools\QtCreator\bin\bin
BinariesPath: C:\Qt\Tools\QtCreator\bin
PluginsPath: C:\Qt\Tools\QtCreator\bin\plugins
QmlImportsPath: C:\Qt\Tools\QtCreator\bin\qml
ArchDataPath: C:\Qt\Tools\QtCreator\bin
DataPath: C:\Qt\Tools\QtCreator\bin
TranslationsPath: C:\Qt\Tools\QtCreator\bin\translations
ExamplesPath: C:\Qt\Tools\QtCreator\bin\examples
TestsPath: C:\Qt\Tools\QtCreator\bin\tests
SettingsPath:

Standard paths [... denote writable entry]:
DesktopLocation: "Desktop" C:\Users\rkama\OneDrive\Desktop
DocumentsLocation: "Documents" C:\Users\rkama\OneDrive\Documents
FontsLocation: "Fonts" C:\WINDOWS\Fonts
ApplicationsLocation: "Applications" C:\Users\rkama\AppData\Roaming\Microsoft\Windows\Start Menu\Programs
MusicLocation: "Music" C:\Users\rkama\Music
MoviesLocation: "Movies" C:\Users\rkama\Videos
PicturesLocation: "Pictures" C:\Users\rkama\OneDrive\Pictures
TempLocation: "Temporary Directory" C:\Users\rkama\AppData\Local\Temp
HomeLocation: "Home" C:\Users\rkama
AppLocalDataLocation: "Application Data" C:\Users\rkama\AppData\Local\QtProject\qtdiag C:\ProgramData\QtProject\qtdiag C:\Qt\Tools\QtCreator\bin C:\Qt\Tools\QtCreator\bin\data C:\Qt\Tools\QtCreator\bin\data\QtProject\qtdiag
CacheLocation: "Cache" C:\Users\rkama\AppData\Local\QtProject\qtdiag\cache
GenericDataLocation: "Shared Data" C:\Users\rkama\AppData\Local C:\ProgramData C:\Qt\Tools\QtCreator\bin C:\Qt\Tools\QtCreator\bin\data
RuntimeLocation: "Runtime" C:\Users\rkama
ConfigLocation: "Configuration" C:\Users\rkama\AppData\Local\QtProject\qtdiag C:\ProgramData\QtProject\qtdiag C:\Qt\Tools\QtCreator\bin C:\Qt\Tools\QtCreator\bin\data C:\Qt\Tools\QtCreator\bin\data\QtProject\qtdiag
DownloadLocation: "Download" C:\Users\rkama\Downloads
GenericCacheLocation: "Shared Cache" C:\Users\rkama\AppData\Local\cache
GenericConfigLocation: "Shared Configuration" C:\Users\rkama\AppData\Local C:\ProgramData C:\Qt\Tools\QtCreator\bin C:\Qt\Tools\QtCreator\bin\data
AppDataLocation: "Application Configuration" C:\Users\rkama\AppData\Roaming\QtProject\qtdiag C:\ProgramData\QtProject\qtdiag C:\Qt\Tools\QtCreator\bin C:\Qt\Tools\QtCreator\bin\data C:\Qt\Tools\QtCreator\bin\data\QtProject\qtdiag
AppConfigLocation: "Application Configuration" C:\Users\rkama\AppData\Local\QtProject\qtdiag C:\ProgramData\QtProject\qtdiag C:\Qt\Tools\QtCreator\bin C:\Qt\Tools\QtCreator\bin\data C:\Qt\Tools\QtCreator\bin\data\QtProject\qtdiag

File selectors (increasing order of precedence):
en_US windows winnt

Network:
Using "OpenSSL 1.1.1d 10 Sep 2019", version: 0x1010104f

Platform capabilities: ThreadedPixmaps OpenGL ThreadedOpenGL WindowMasks MultipleWindows ForeignWindows NonFullScreenWindows NativeWidgets WindowManagement RasterGLSurface AllGLFunctionsQueryable

Style hints:
mouseDoubleClickInterval: 500
mousePressAndHoldInterval: 800
startDragDistance: 10
startDragTime: 500
startDragVelocity: 0
keyboardInputInterval: 400
keyboardAutoRepeatRate: 32
cursorFlashTime: 1060
showIsFullScreen: 0
showIsMaximized: 0
passwordMaskDelay: 0
passwordMaskCharacter: U+000
Plugin information:

• Android 8.0.1
• AutoTest 8.0.1
  AutotoolsProjectManager 8.0.1
  BareMetal 8.0.1
• Bazaar 8.0.1
  Beautifier 8.0.1
• BinEditor 8.0.1
• Bookmarks 8.0.1
  Boot2Qt 8.0.1
• CMakeProjectManager 8.0.1
• CVS 8.0.1
• ClangCodeModel 8.0.1
  ClangFormat 8.0.1
• ClangTools 8.0.1
• ClassView 8.0.1
  ClearCase 8.0.1
  Coco 8.0.1
• CodePaster 8.0.1
  CompilationDatabaseProjectManager 8.0.1
  Conan 8.0.1
• Core 8.0.1
• CppEditor 8.0.1
  Cppcheck 8.0.1
• CtfVisualizer 8.0.1
• Debugger 8.0.1
• Designer 8.0.1
• DiffEditor 8.0.1
  Docker 8.0.1
  EmacsKeys 8.0.1
• FakeVim 8.0.1
• GLSLEditor 8.0.1
• GenericProjectManager 8.0.1
• Git 8.0.1
  GitLab 8.0.1
  HelloWorld 8.0.1
• Help 8.0.1
• ImageViewer 8.0.1
• IncrediBuild 8.0.1
  Ios 8.0.1
• LanguageClient 8.0.1
• LicenseChecker 8.0.1
• Macros 8.0.1
• Marketplace 8.0.1
  McuSupport 8.0.1
• Mercurial 8.0.1
  MesonProjectManager 8.0.1
• ModelEditor 8.0.1
  Nim 8.0.1
• PerfProfiler 8.0.1
  Perforce 8.0.1
• ProjectExplorer 8.0.1
• Python 8.0.1
• QbsProjectManager 8.0.1
• QmakeProjectManager 8.0.1
  QmlDesigner 8.0.1
• QmlJSEditor 8.0.1
• QmlJSTools 8.0.1
• QmlPreview 8.0.1
• QmlProfiler 8.0.1
• QmlProjectManager 8.0.1
• Qnx 8.0.1
• QtSupport 8.0.1
• RemoteLinux 8.0.1
• ResourceEditor 8.0.1
• ScxmlEditor 8.0.1
  SerialTerminal 8.0.1
  SilverSearcher 8.0.1
  StudioWelcome 8.0.1
• Subversion 8.0.1
• TaskList 8.0.1
• TextEditor 8.0.1
  Todo 8.0.1
• UpdateInfo 8.0.1
• UsageStatistic 8.0.1
• Valgrind 8.0.1
• VcsBase 8.0.1
  Vxworks 8.0.1
  WebAssembly 8.0.1
• Welcome 8.0.1

Used settingspath: ~/AppData/Roaming/QtProject

Qt Creator 8.0.1
Based on Qt 6.3.1 (MSVC 2019, x86_64)
From revision 9c963ce8ae
Built on Aug 11 2022 01:13:43

{noformat}

[JonB]

@Bob-K
The information about Qt Creator is not relevant. That is an IDE to develop your code. What exact version of Qt do you use/your application is configured to build with?

[Bob K.]

Qt 6.3.1 (MSVC 2019, x86_64)

[Bob K.]

Is this being looked at, or have I done something wrong?

[Bob K.]

Now working!

[ChrisW67]

@Bob-K No, nothing wrong. This is not paid Qt support though. For my part life got in the way.

Good to hear that you fixed the problem. Where was the issue?

[Bob K.]

I'm not sure. I did update Qt, so perhaps that did the trick. Anyway, it's working.