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[closed] wx AttachUnknownControl work with one customized grid control, cannot show h+v scrollbars on Linux

2

Yesterday, I met this problem. See below code example:

pGrid = new SortTable(m_clipListPnl, ID_CLIP_LIST_GRID, ARRAYLEN($oneStrArray), $oneStrArray);wxXmlResource::Get()->AttachUnknownControl($CTRLID, pGrid);

SortTable is our customized grid table, derived from wxGrid. When show this grid, we cannot see its h/v scroll bars on Linux, see below screenshot:

How to solve this problem?

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asked Feb 27 '13 at 17:12

Zero
4.4k●19●109

closed Apr 23 '13 at 17:36

SortTable override some methods affecting the behaviors of ScrollWindow?

(Feb 28 '13 at 09:54)yahuang

@yahuang, if not via xrc solution to AttachUnknownControl, SortTable behaves correctly, like we manually write ui code.

(Feb 28 '13 at 13:12)Zero

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The question has been closed for the following reason "The question is answered, right answer was accepted" by Zero Apr 23 '13 at 17:36

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One Answer:

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4

Currently solution is that don't create any row/col including labels, before AttachUknownControl function call. Refer to CL-193574 in PLT-20261 for this solution.

// create empty gridm_flowListGrid = new SortTable(m_flowListPnl, ID_FLOW_LIST_GRID, 0, NULL);wxXmlResource::Get()->AttachUnknownControl(XRC_STR[ID_FLOW_LIST_GRID], m_flowListGrid, m_flowListPnl);::AppendGridColumns(m_flowListGrid, flow_grid_col_labels, ARRAY_LEN(flow_grid_col_labels));

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answered Mar 01 '13 at 14:18

Zero
4.4k●19●109

I find in some case, using xrc AttachUnnownControl and display ctrl directrly are different in ui behivior. but I don't know the reason.

(Mar 01 '13 at 14:52)tanli

1

AttachUnknownControl has different implementation on both platforms, but mainly do reparent task. Reparent current control window as one child of that "unknown" window defined in xrc file, so reparent window procedure will trigger AddChild function call and then cause window resize/layout. Mostly windows platform works correctly, gtk platform has unexpected display issues.

(Mar 01 '13 at 14:58)Zero

@Zero, yes, I met the problem in using a CollapsablePanel ctrl in our project, when use sizeer and display directly, it works ok and can collspse,but in xrc and attach unknown ctrl, it can't collspse. I guess xrc reparent current control and put this ctrl in sizer directly is different

(Mar 01 '13 at 15:13)tanli

Please record this in wx pitfall page

(Mar 26 '13 at 10:53)Yun Yuan

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