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From Lei Wang <>
Subject Re: [Call-for-Review][Calc][From Symphony]Crash if undo redo creating data pilot from imported data
Date Wed, 13 Jun 2012 13:03:22 GMT
I will take care of this one.

On Wed, Jun 13, 2012 at 2:04 PM, 彭云全 <> wrote:

> hI All,
>    My name is pengyunquan. I am a developer working several years in
> Symphony team. My specail areas are PivotTable / Graphic / VCL /
> Performance.
> I have a patch for review.
> Root Cause : A rule in calc is that inserting a sheet should enable
> DrawUndo first, because inserting a new sheet will cause a new
> ScDrawPage being inserted into SdrModel, and this action should be
> managed by DrawUndo. But on creation of PivotTable, this rule is not
> obeyed. When creating PivotTable on new sheet, a new sheet is inserted
> without enablement of DrawUndo. As a result, when undo the creation of
> PivotTable, the new sheet is removed but the SdrModel is not by
> synchronized because it's the DrawUndo's responsibility to do the
> synchronization but DrawUndo is not recorded. When inserting sheets
> from file for the 2nd time, the undo list is cleared and some
> ScDrawPage should be destroyed, but as stated above the ScDrawPage is
> not correctly maintained when undo the creation of PivotTable, so
> incorrect ScDrawPage is destroyed and cause dead object access later.
> Solution : Enable DrawUndo before inserting a new sheet on creation of
> PivotTable

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