If I create a QTreeView,
If it is a multi-hirarchy tree with 2 Columns
This is how it gonna look like

Qt Code:
  1. Column0 --------------- Column1
  2. ------------------------------
  3. Widget0 --------------- Widget
  4. Widget00 ----------- Widget
  5. Widget01 ----------- Widget
  6. Widget010 ------ Widget
  7.  
  8. Widget1 --------------- Widget
  9. Widget10 ----------- Widget
  10. Widget100 ------ Widget
  11. Widget11 ----------- Widget
  12. Widget110 ------ Widget
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All the widgets in Column0 look like they are in a tree
But all the widgets in Column1 always aligned in the same line
And with the depth of the tree grows, the Column1 might block Column0

This is what I expected:

Qt Code:
  1. Column0 --------------- Column1
  2. ------------------------------
  3. Widget0 --------------- Widget
  4. Widget00 --------------- Widget
  5. Widget01 --------------- Widget
  6. Widget010 --------------- Widget
  7.  
  8. Widget1 --------------- Widget
  9. Widget10 --------------- Widget
  10. Widget100 --------------- Widget
  11. Widget11 --------------- Widget
  12. Widget110 --------------- Widget
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Also here is a link of picture of the effect that I want:
I think that's a QTreeView,

Customize Column.png

Seems like he can customize the width of the widget/column in each row.
I dont have the src code.

How did he do it?

Thanks for reading and answering my question.