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QTableWidget automatically sizes rows too large

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  • JoeCFDJ JoeCFD

    @Publicnamer It could be tricky. Find the font size(if there are only strings) or image height and then set row minimum and maximum height(slightly bigger than font size) to be the same.

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    Publicnamer
    wrote on last edited by Publicnamer
    #6

    @JoeCFD What is the point of resizing automatically for content size, if I have to specify the row height?
    This is seeming like a broken feature.
    Also, table widget doesn't have a setRowMinimumHeight or setRowMaximumHeight method. It only has setRowHeight.
    Whether I call setRowHeight or not, I get the same result.

    JoeCFDJ 1 Reply Last reply
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    • P Publicnamer

      @JoeCFD What is the point of resizing automatically for content size, if I have to specify the row height?
      This is seeming like a broken feature.
      Also, table widget doesn't have a setRowMinimumHeight or setRowMaximumHeight method. It only has setRowHeight.
      Whether I call setRowHeight or not, I get the same result.

      JoeCFDJ Offline
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      JoeCFD
      wrote on last edited by
      #7

      @Publicnamer
      do this in vertical header
      void setMaximumSectionSize(int size)
      void setMinimumSectionSize(int size)

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      • JoeCFDJ JoeCFD

        @Publicnamer
        do this in vertical header
        void setMaximumSectionSize(int size)
        void setMinimumSectionSize(int size)

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        Publicnamer
        wrote on last edited by
        #8

        @JoeCFD BTW I've noticed the table widget is setting the wrong row height in a systematic way:

        • If a row has 1 word in it, the vertical space given to it is 1 line.
        • If a row has 2 words in it, the vertical space given to it is 2 lines.
        • If a row has 3 words in it, the vertical space given to it is 3 lines.
        • If a row has 4 words in it, the vertical space given to it is 4 lines.
          Etc.
        JonBJ 1 Reply Last reply
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        • JoeCFDJ JoeCFD

          @Publicnamer
          do this in vertical header
          void setMaximumSectionSize(int size)
          void setMinimumSectionSize(int size)

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          Publicnamer
          wrote on last edited by
          #9

          @JoeCFD said in QTableWidget automatically sizes rows too large:

          setMaximumSectionSize

          OK I did that but it doesn't help. I need to have row heights that adapt to the contents. The contents may have different fonts, so they can't all be the same. I need the text to wrap.

          JoeCFDJ 1 Reply Last reply
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          • P Publicnamer

            @JoeCFD BTW I've noticed the table widget is setting the wrong row height in a systematic way:

            • If a row has 1 word in it, the vertical space given to it is 1 line.
            • If a row has 2 words in it, the vertical space given to it is 2 lines.
            • If a row has 3 words in it, the vertical space given to it is 3 lines.
            • If a row has 4 words in it, the vertical space given to it is 4 lines.
              Etc.
            JonBJ Offline
            JonBJ Offline
            JonB
            wrote on last edited by JonB
            #10

            @Publicnamer said in QTableWidget automatically sizes rows too large:

            If a row has 1 word in it, the vertical space given to it is 1 line.
            If a row has 2 words in it, the vertical space given to it is 2 lines.
            If a row has 3 words in it, the vertical space given to it is 3 lines.
            ...

            I would try to diagnose this. If you (temporarily) set word wrap off, does that affect? More likely, can you (temporarily) switch off any column spanning, does that affect? And are you able to post a screen shot of what it looks like with, say, 3 rows of 1, 2 and 3 words respectively?

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            • JonBJ JonB

              @Publicnamer said in QTableWidget automatically sizes rows too large:

              If a row has 1 word in it, the vertical space given to it is 1 line.
              If a row has 2 words in it, the vertical space given to it is 2 lines.
              If a row has 3 words in it, the vertical space given to it is 3 lines.
              ...

              I would try to diagnose this. If you (temporarily) set word wrap off, does that affect? More likely, can you (temporarily) switch off any column spanning, does that affect? And are you able to post a screen shot of what it looks like with, say, 3 rows of 1, 2 and 3 words respectively?

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              Publicnamer
              wrote on last edited by Publicnamer
              #11

              @JonB
              Turning off word wrap has no effect.

              I decided to calculate my own row heights but this appears pointless too.
              I tried changing the order in which I'm doing things e.g. setting the spans before/after the row heights, setting the text before/after setting the row heights.

              When I store correct row heights into the tablewidget with setRowHeight there is no effect. That's even when I do this:

               verticalHeader->setSectionResizeMode(QHeaderView::Fixed);
              

              It seems as though using spans causes some buggy code within qtablewidget to take over and it becomes unresponsive to a lot of calls.

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              • P Publicnamer

                @JoeCFD said in QTableWidget automatically sizes rows too large:

                setMaximumSectionSize

                OK I did that but it doesn't help. I need to have row heights that adapt to the contents. The contents may have different fonts, so they can't all be the same. I need the text to wrap.

                JoeCFDJ Offline
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                JoeCFD
                wrote on last edited by
                #12

                @Publicnamer You can basically set the same font to each item. Then you will will not have any problem.

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                • JoeCFDJ JoeCFD

                  @Publicnamer You can basically set the same font to each item. Then you will will not have any problem.

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                  Publicnamer
                  wrote on last edited by Publicnamer
                  #13

                  @JoeCFD said in QTableWidget automatically sizes rows too large:

                  You can basically set the same font to each item

                  I'm already doing that. I tried just now not setting the font and the bug persists i.e. each Space character in my strings is treated as a Newline, so a four-word string causes a row height equivalent to 4 lines. And yet the Space characters do not cause line breaks when the strings are drawn.

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                  • JoeCFDJ Offline
                    JoeCFDJ Offline
                    JoeCFD
                    wrote on last edited by
                    #14

                    @JoeCFD said in QTableWidget automatically sizes rows too large:

                    setMaximumSectionSize

                    this is what I did in my code.
                    m_tableWidget->verticalHeader()->setSectionResizeMode( QHeaderView::Fixed );
                    m_tableWidget->verticalHeader()->setMinimumSectionSize( item_height );
                    m_tableWidget->verticalHeader()->setMaximumSectionSize( item_height );
                    m_tableWidget->verticalHeader()->setDefaultSectionSize( item_height );

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                    • JoeCFDJ JoeCFD

                      @JoeCFD said in QTableWidget automatically sizes rows too large:

                      setMaximumSectionSize

                      this is what I did in my code.
                      m_tableWidget->verticalHeader()->setSectionResizeMode( QHeaderView::Fixed );
                      m_tableWidget->verticalHeader()->setMinimumSectionSize( item_height );
                      m_tableWidget->verticalHeader()->setMaximumSectionSize( item_height );
                      m_tableWidget->verticalHeader()->setDefaultSectionSize( item_height );

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                      Publicnamer
                      wrote on last edited by
                      #15

                      @JoeCFD OK but each of my rows can be a different height, so that doesn't help me.

                      JoeCFDJ 1 Reply Last reply
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                      • P Publicnamer

                        @JoeCFD OK but each of my rows can be a different height, so that doesn't help me.

                        JoeCFDJ Offline
                        JoeCFDJ Offline
                        JoeCFD
                        wrote on last edited by
                        #16

                        @Publicnamer
                        try this
                        m_tableWidget->verticalHeader()-> resizeSection(int logicalIndex, int size)

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                        • JoeCFDJ JoeCFD

                          @Publicnamer
                          try this
                          m_tableWidget->verticalHeader()-> resizeSection(int logicalIndex, int size)

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                          Publicnamer
                          wrote on last edited by
                          #17

                          @JoeCFD said in QTableWidget automatically sizes rows too large:

                          m_tableWidget->verticalHeader()-> resizeSection(int logicalIndex, int size)

                          I tried replacing setRowHeight with that but it doesn't work either :

                           verticalHeader->resizeSection(myRow, myRowHeight);
                          

                          AFAIK I'm only dealing with rows, not sections.

                          JoeCFDJ 1 Reply Last reply
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                          • P Publicnamer

                            @JoeCFD said in QTableWidget automatically sizes rows too large:

                            m_tableWidget->verticalHeader()-> resizeSection(int logicalIndex, int size)

                            I tried replacing setRowHeight with that but it doesn't work either :

                             verticalHeader->resizeSection(myRow, myRowHeight);
                            

                            AFAIK I'm only dealing with rows, not sections.

                            JoeCFDJ Offline
                            JoeCFDJ Offline
                            JoeCFD
                            wrote on last edited by JoeCFD
                            #18

                            @Publicnamer
                            horizontal header section defines column width.
                            vertical header section defines row height.

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                            • JoeCFDJ JoeCFD

                              @Publicnamer
                              horizontal header section defines column width.
                              vertical header section defines row height.

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                              Publicnamer
                              wrote on last edited by Publicnamer
                              #19

                              @JoeCFD
                              OK what is a section in this context?

                              Also, why would a call to table->setRowHeight(row, height) have no effect?

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                              • P Publicnamer

                                @JoeCFD
                                OK what is a section in this context?

                                Also, why would a call to table->setRowHeight(row, height) have no effect?

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                                Publicnamer
                                wrote on last edited by
                                #20

                                @Publicnamer
                                OK I believe I found the bug.

                                At the end of my function which fills the table with data, I had a call to:

                                 void QTableView::resizeRowsToContents()
                                

                                This was overriding all of my attempts to programmatically set the ideal row sizes but more importantly it was setting bogus row heights.

                                1 Reply Last reply
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