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TElXTree header style="Image only"

Helmut VaupotitschHelmut Vaupotitsch
edited March 2023 in LMD ElPack
Hello, i have some problems when i use the "Image only" style for a merged header cell in the TElXTree.

When i have a header with two rows and i use the "Image only" style everything works as expected, see Image1.png
When i merge the cells, than the image is compressed, see Image2.png
Years ago i had an version, where this worked without any problems see Image3.png, which is a screenshot from the old software.
On the last image you can see the settings of my header section cell (image4.png).

Thanks in advance

Used software:
LMD VCL Complete 2022.1
Delphi 11 Alexandria



Comments

  • Eugene Balabuev (LMD)Eugene Balabuev (LMD)
    Need some time to look...
  • Helmut VaupotitschHelmut Vaupotitsch
    UPDATE: I searched my old sources and re-applied a forgotten historical fix from 2015 - and it worked again.
    The fix is fine for 2-row merged header cells (Style=elhsImageIndex). I didn't test 3 rows or against other settings, but probably it's also useful for the LMD team.


    ElXHeader.pas, ~line 2711

    {$IFNDEF TElXHeaderCell_Fix_DistortedImage}
              // 2-row header bug -- distorted image!
                  R1.Top + LHeader.Images.Height);
    {$ELSE}
                  0);
              // correct bottom
              R2.Bottom := R2.Top + LHeader.Images.Height;
    {$ENDIF}
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