Developer forums (C::B DEVELOPMENT STRICTLY!) > CodeCompletion redesign

annoying crash when debugging CC's auto-suggestion

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p2rkw:

--- Quote ---The autocomplete window in Scintilla is created each time but not destroyed.
--- End quote ---
Sorry, but I can't argee with that.
Here's how ListBox is created:

--- Code: ---void AutoComplete::Start(Window &parent, int ctrlID,
int position, Point location, int startLen_,
int lineHeight, bool unicodeMode, int technology) {
/* C::B begin */
// if (active) {
// Cancel();
// }
/* C::B end */
lb->Create(parent, ctrlID, location, lineHeight, unicodeMode, technology);
lb->Clear();
--- End code ---
"lb->clear" calls ListBoxImpl::Create, here is part of it's implementation:

--- Code: ---/* C::B begin */
    if (wid == 0)
        wid = new wxSCIListBoxWin(GETWIN(parent.GetID()), ctrlID, location_);
    else if (GETLBW(wid)->GetParent() != GETWIN(parent.GetID()))
        GETLBW(wid)->Reparent(GETWIN(parent.GetID()));
    GETLBW(wid)->SetPosition(wxPoint(location_.x,location_.y));
    GETLBW(wid)->SetId(ctrlID);
    GETLB(wid)->SetId(ctrlID);
/* C::B end */
--- End code ---
If window wasn't destroyed it will be reused.

At first I thought "How could I make so horrible mistake", but I look deeper into code and it's not so bad :)

ollydbg:
Hi, p2rkw, I just see a very similar crash issue happens (see the discussion in Re: The 22 March 2014 build (9744) is out.).

I think it is much like the one I reported.

Sorry that your patch is lost for one year. I think we need to fix them.

ollydbg:

--- Quote from: oBFusCATed on December 31, 2012, 10:35:09 am ---

--- Quote from: ollydbg on December 31, 2012, 10:21:54 am ---(Another question is: how to build C::B which can link to a debug version of wxWidgets library, so that I can see/track the messages more clearly, currently, gdb's bt command always stop at [debug]#17 0x00e7ff27 in wxEvtHandler::ProcessEventIfMatches(wxEventTableEntryBase const&, wxEvtHandler*, wxEvent&) () from E:\code\cb\cleantrunk\src\devel\wxmsw28u_gcc_custom.dll)

--- End quote ---
Build options->Custom variables and probably you should define some wxdebug macros...

--- End quote ---

Today, I build the C::B which link against wx2.8.12 debug library to hunt a bug in Re: The 22 March 2014 build (9744) is out., here is the simple patch

--- Code: --- src/CodeBlocks.cbp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/CodeBlocks.cbp b/src/CodeBlocks.cbp
index 07c384f..b456243 100644
--- a/src/CodeBlocks.cbp
+++ b/src/CodeBlocks.cbp
@@ -711,7 +711,7 @@
  </Target>
  <Environment>
  <Variable name="WX_CFG" value="" />
- <Variable name="WX_SUFFIX" value="u" />
+ <Variable name="WX_SUFFIX" value="ud" />
  <Variable name="WX_VERSION" value="28" />
  </Environment>
  </Build>
@@ -735,6 +735,7 @@
  <Add option="-DCB_PRECOMP" />
  <Add option="-DWX_PRECOMP" />
  <Add option="-DwxUSE_UNICODE" />
+ <Add option="-D__WXDEBUG__" />
  <Add directory="$(#WX.include)" />
  <Add directory="$(#WX.lib)/gcc_dll$(WX_CFG)/msw$(WX_SUFFIX)" />
  <Add directory="sdk/wxscintilla/include" />

--- End code ---

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