Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. How to change alignment of widget
Forum Updated to NodeBB v4.3 + New Features

How to change alignment of widget

Scheduled Pinned Locked Moved Unsolved General and Desktop
20 Posts 4 Posters 21.7k Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • U UG SEP

    I didn't found something relevant to it...
    Please can you tell me what mistake I am doing??

    mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by mrjj
    #6

    @UG-SEP
    Hi
    You have to assign the layout to the widget holding the LineEdit.
    Often that is the form. or some other widget.
    Then the layout offers adjustment of the widgets it holds in relation to its parent.

    So right-click beside the LineEdit (on the form / window) and use the Layout menu to assign a layout.
    Then you can adjust layouts setting via its properties.

    If you have other widgets on the form, you might want to use the red layouts in the left side (where the widgets are ) to insert a sub layout to the main layout so you sort of creates a section that can have other options.

    alt text

    alt text

    Here i Rightclicked the centralwidget and use the layout menu
    then i dragged red layout to this layout and then dragged the lineEdit to the sub layout

    1 Reply Last reply
    3
    • U Offline
      U Offline
      UG SEP
      wrote on last edited by UG SEP
      #7

      I did as you told but when I add the Horizontal Layout central widget the widget fix on the whole layout
      proof.jpg

      mrjjM 1 Reply Last reply
      0
      • U UG SEP

        I did as you told but when I add the Horizontal Layout central widget the widget fix on the whole layout
        proof.jpg

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #8

        @UG-SEP

        Yes. That is normal. they have to be linked to the central so they scale with window.
        If you don't add layout to central. the red layout will just float around and nnot react to you scaling the window.

        The normal way to design forms is to have all widgets under the control of a layout. Having them float
        around is not going to work good across multi resolutions etc.

        1 Reply Last reply
        0
        • U Offline
          U Offline
          UG SEP
          wrote on last edited by
          #9

          I haven't achieved whatever I want
          My goal
          I have resized the text edit so after resizing it should be center-aligned but after following the above steps I didn't get the goal

          mrjjM 1 Reply Last reply
          0
          • U UG SEP

            I haven't achieved whatever I want
            My goal
            I have resized the text edit so after resizing it should be center-aligned but after following the above steps I didn't get the goal

            mrjjM Offline
            mrjjM Offline
            mrjj
            Lifetime Qt Champion
            wrote on last edited by
            #10

            @UG-SEP

            Odd. Mine will center just fine.
            alt text

            Are you sure the TextEdit is inside the layout ?

            Mine looks far more indented than yours so i think maybe TextEdit is not inside

            alt text

            If you resize the red layout it should also move around-

            1 Reply Last reply
            1
            • U Offline
              U Offline
              UG SEP
              wrote on last edited by
              #11

              I did as you told but as I put TextEdit in Layout the TextEdit capture the whole area but in your case, It didn't hold all areas it's in center
              proof.jpg

              mrjjM 1 Reply Last reply
              0
              • U UG SEP

                I did as you told but as I put TextEdit in Layout the TextEdit capture the whole area but in your case, It didn't hold all areas it's in center
                proof.jpg

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

                @UG-SEP
                The TextEdit will default use all space.
                If you had a certain size in mind you can set a maximum width/height to it to it. ( in the property list )

                alt text

                1 Reply Last reply
                0
                • U Offline
                  U Offline
                  UG SEP
                  wrote on last edited by
                  #13

                  I try some advanced in this
                  I added a button and when it's pressed then
                  I resize TextEdit and then and apply layout.set alignment(ui->textedit,Qt::aligncenter);
                  but i textedit is not at center
                  Code:

                   ui->textEdit->resize(32,54);
                      QHBoxLayout layout;
                      layout.setAlignment(ui->textEdit,Qt::AlignCenter);
                  

                  Image of ui:
                  proof.jpg

                  mrjjM 1 Reply Last reply
                  0
                  • U UG SEP

                    I try some advanced in this
                    I added a button and when it's pressed then
                    I resize TextEdit and then and apply layout.set alignment(ui->textedit,Qt::aligncenter);
                    but i textedit is not at center
                    Code:

                     ui->textEdit->resize(32,54);
                        QHBoxLayout layout;
                        layout.setAlignment(ui->textEdit,Qt::AlignCenter);
                    

                    Image of ui:
                    proof.jpg

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

                    @UG-SEP

                    Hi
                    It's good you play around to learn the layout. Best way to learn.

                    The Qt::AlignCenter only works if the widget is not using all the space of the layout which is the normal
                    setting. So here it will use all space and alignment won't really make sense.

                    Is the goal to have space around it?
                    or why are you so dedicated to it must be center if its the size of the area anyway?

                    U 1 Reply Last reply
                    0
                    • mrjjM mrjj

                      @UG-SEP

                      Hi
                      It's good you play around to learn the layout. Best way to learn.

                      The Qt::AlignCenter only works if the widget is not using all the space of the layout which is the normal
                      setting. So here it will use all space and alignment won't really make sense.

                      Is the goal to have space around it?
                      or why are you so dedicated to it must be center if its the size of the area anyway?

                      U Offline
                      U Offline
                      UG SEP
                      wrote on last edited by
                      #15

                      @mrjj I want to use Page Setup in TextEdit i.e. letter,A4,A3, etc page size so what I did I resize text edit and try to align it center when user click the button

                      mrjjM 1 Reply Last reply
                      0
                      • U UG SEP

                        @mrjj I want to use Page Setup in TextEdit i.e. letter,A4,A3, etc page size so what I did I resize text edit and try to align it center when user click the button

                        mrjjM Offline
                        mrjjM Offline
                        mrjj
                        Lifetime Qt Champion
                        wrote on last edited by
                        #16

                        @UG-SEP

                        Ok so it's like a page preview ? as a real A4 / A3 would be waaay bigger than the layout.

                        You can control its size in a layout by calling

                        ui->textXx->setMaximumSize(100,100);

                        to not allow it to grow to full size of layout.

                        U 1 Reply Last reply
                        0
                        • JoeCFDJ Offline
                          JoeCFDJ Offline
                          JoeCFD
                          wrote on last edited by JoeCFD
                          #17

                          @UG-SEP said in How to change alignment of widget:

                          ui->textEdit->resize(32,54);
                          QHBoxLayout layout;
                          layout.setAlignment(ui->textEdit,Qt::AlignCenter);

                          ui->textEdit->resize(32,54);
                          auto layout = new QHBoxLayout( this ); /* do not do: QHBoxLayout layout; which may cause crash */
                          layout->setAlignment(ui->textEdit,Qt::AlignCenter);

                          1 Reply Last reply
                          0
                          • mrjjM mrjj

                            @UG-SEP

                            Ok so it's like a page preview ? as a real A4 / A3 would be waaay bigger than the layout.

                            You can control its size in a layout by calling

                            ui->textXx->setMaximumSize(100,100);

                            to not allow it to grow to full size of layout.

                            U Offline
                            U Offline
                            UG SEP
                            wrote on last edited by
                            #18

                            @mrjj means there is no way to set page size like A4, A5 etc in textedit

                            mrjjM 1 Reply Last reply
                            0
                            • U UG SEP

                              @mrjj means there is no way to set page size like A4, A5 etc in textedit

                              mrjjM Offline
                              mrjjM Offline
                              mrjj
                              Lifetime Qt Champion
                              wrote on last edited by
                              #19

                              @UG-SEP
                              Hi
                              Well there is
                              https://doc.qt.io/qt-5/qtextdocument.html#pageSize-prop
                              (TextEdit uses this for the page etc)

                              Concrete sizes like A4/A3 is more when you print and QPrinter does know them/support it.
                              Its a paper size

                              However, you can set the page size of the Document to the size of A4 or what ever you want.

                              So if the goal is to resize the TextEdit so it be the size of a A4. then using layout seems a bit odd
                              as it cant be bigger than the layout and a layout cant scroll.

                              So iM not 100ยค sure what you are trying to do.
                              Seems you try to make a really small page so that confuses me :)

                              1 Reply Last reply
                              0
                              • U Offline
                                U Offline
                                UG SEP
                                wrote on last edited by
                                #20

                                Let leave this topic...
                                Thanks, @mrjj for helping me
                                ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ™‚๐Ÿ™‚

                                1 Reply Last reply
                                1

                                • Login

                                • Login or register to search.
                                • First post
                                  Last post
                                0
                                • Categories
                                • Recent
                                • Tags
                                • Popular
                                • Users
                                • Groups
                                • Search
                                • Get Qt Extensions
                                • Unsolved