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QMessageBox too small

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  • L Offline
    L Offline
    leon.anavi
    wrote on last edited by
    #5

    [quote author="Serenity" date="1360759711"]Thank you, it seems to work with your work around.
    But I am still wondering, why it doesn't resize by itself.
    [/quote]

    I have no idea with setFixedWidth didn't work as expected too. In fact the work around is not mine. As I said I found it at "an old thread at Qt Centre":http://www.qtcentre.org/threads/22298-QMessageBox-Controlling-the-width?p=113348#post113348

    http://anavi.org/

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    • W Offline
      W Offline
      Wonson
      wrote on last edited by
      #6

      After 3 years, it is still not fixed

      mrjjM 1 Reply Last reply
      1
      • W Wonson

        After 3 years, it is still not fixed

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #7

        @Wonson
        well maybe it was never reported ?

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        • D Offline
          D Offline
          DougyDrumz
          wrote on last edited by
          #8

          Has anybody found a solutions to this? I tried http://www.qtcentre.org/threads/22298-QMessageBox-Controlling-the-width?p=113348#post113348 to no avail. Is seems my QMessageBox won't expand beyond it's internal maximum width.

          Dougy Drumz

          mrjjM 1 Reply Last reply
          0
          • D DougyDrumz

            Has anybody found a solutions to this? I tried http://www.qtcentre.org/threads/22298-QMessageBox-Controlling-the-width?p=113348#post113348 to no avail. Is seems my QMessageBox won't expand beyond it's internal maximum width.

            mrjjM Offline
            mrjjM Offline
            mrjj
            Lifetime Qt Champion
            wrote on last edited by
            #9

            @DougyDrumz
            hi this does work for me

            #include <QMessageBox>
            #include <QGridLayout>
            #include <QSpacerItem>
            
            void MainWindow::on_pushButton_released()
            {
            
                QMessageBox msg;
                msg.setIconPixmap(QPixmap(":/error.svg"));
                msg.setText("No images loaded");
                msg.setInformativeText("There are no images in the list. Please create or load a project");
                msg.setStandardButtons(QMessageBox::Ok);
                msg.setDefaultButton(QMessageBox::Ok);
                QSpacerItem* horizontalSpacer = new QSpacerItem(800, 0, QSizePolicy::Minimum, QSizePolicy::Expanding);
                QGridLayout* layout = (QGridLayout*)msg.layout();
                layout->addItem(horizontalSpacer, layout->rowCount(), 0, 1, layout->columnCount());
                msg.exec();
            }
            
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            • D Offline
              D Offline
              DougyDrumz
              wrote on last edited by
              #10

              This doesn't work for me. One thing I've noticed: You're opening this QMessageBox in a QMainWindow. My QMessageBox is opened in main. This is because I open the QMessageBox using an executable from the command line. It's not tied to any app. Could that be an issue? If it helps, I'm running Qt 4.6.2 on RHEL 6 machine.

              Dougy Drumz

              mrjjM 1 Reply Last reply
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              • D DougyDrumz

                This doesn't work for me. One thing I've noticed: You're opening this QMessageBox in a QMainWindow. My QMessageBox is opened in main. This is because I open the QMessageBox using an executable from the command line. It's not tied to any app. Could that be an issue? If it helps, I'm running Qt 4.6.2 on RHEL 6 machine.

                mrjjM Offline
                mrjjM Offline
                mrjj
                Lifetime Qt Champion
                wrote on last edited by mrjj
                #11

                @DougyDrumz
                win 7, qt 5.5
                well im not using "this" from mainwindow ,
                so should be same as in main.cpp
                Let me try.
                update:
                also works from main.

                Maybe its diff between win and linux. But looking at code it seems that
                its build with qt widgets so should function the same.

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                • mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by
                  #12

                  hi
                  could you try for test to run this

                  #include <QList>
                  void Pop() {
                   QMessageBox msg;
                   msg.setIconPixmap(QPixmap(":/error.svg"));
                   msg.setText("No images loaded");
                   msg.setInformativeText("There are no images in the list. Please create or load a project");
                   msg.setStandardButtons(QMessageBox::Ok);
                   msg.setDefaultButton(QMessageBox::Ok);
                   QList<QObject*> widgets = msg.findChildren<QObject*>();
                   for (int var = 0; var < widgets.size(); ++var) {
                     qDebug() << widgets[var]->objectName() << widgets[var]->metaObject()->className();
                   }
                   msg.exec();
                  }
                  

                  its lists all objects.
                  my list is
                  "qt_msgboxex_icon_label" QLabel
                  "qt_msgbox_label" QLabel
                  "qt_msgbox_buttonbox" QDialogButtonBox
                  "" QHBoxLayout
                  "" QPushButton
                  "" QGridLayout
                  "qt_msgbox_informativelabel" QLabel
                  just too see if inner layout is different for you.

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                  • D Offline
                    D Offline
                    DougyDrumz
                    wrote on last edited by
                    #13

                    Same objects, different order:

                    "" QGridLayout
                    "qt_msgboxex_icon_label" QLabel
                    "qt_msgbox_label" QLabel
                    "qt_msgbox_buttonbox" QDialogButtonBox
                    "" QHBoxLayout
                    "" QPushButton
                    "qt_msgbox_informativelabel" QLabel

                    Dougy Drumz

                    mrjjM 1 Reply Last reply
                    0
                    • D DougyDrumz

                      Same objects, different order:

                      "" QGridLayout
                      "qt_msgboxex_icon_label" QLabel
                      "qt_msgbox_label" QLabel
                      "qt_msgbox_buttonbox" QDialogButtonBox
                      "" QHBoxLayout
                      "" QPushButton
                      "qt_msgbox_informativelabel" QLabel

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #14

                      @DougyDrumz
                      Ok, nothing exciting there.
                      looking at the code in qmessagebox.cpp i see nothing that should it do different
                      on linux.
                      Have you looked in your version ?
                      seems like it's a lost cause as most of the stuff is in private.

                      1 Reply Last reply
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