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[SOLVED]Access viloation on CXTPControlGallery

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Category: Codejock Products
Forum Name: Toolkit Pro
Forum Description: Topics Related to Codejock Toolkit Pro
URL: http://forum.codejock.com/forum_posts.asp?TID=22811
Printed Date: 23 December 2024 at 9:34pm
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Topic: [SOLVED]Access viloation on CXTPControlGallery
Posted By: jhlee.8804
Subject: [SOLVED]Access viloation on CXTPControlGallery
Date Posted: 07 December 2015 at 10:34am
Hi, I have found a some error when set true to CXTPControlGallery::SetScrollBarAuto.

Here is sample code. (Used in "Codejock/Sample/Ribbon/RibbonControls/MainFrm.cpp")


// Create Inline Gallery
if (pTabGallery)
{
  CXTPRibbonGroup* pGroup = pTabGallery->AddGroup(ID_GROUP_INLINE);
  pGroup->SetControlsCentering(TRUE);

  CXTPControlGallery* pControlGallery = new CXTPControlGallery();
  pControlGallery->SetControlSize(CSize(192, 60));
  pControlGallery->ShowLabels(FALSE);
  pControlGallery->ShowScrollBar(TRUE);
  pControlGallery->ShowBorders(TRUE);
  pControlGallery->SetItems(m_pItemsFontTextColor);
  pControlGallery->SetScrollBarAuto(TRUE);       <<<<<<<<<< I just added one line code !!!
  pGroup->Add(pControlGallery, ID_GALLERY_STYLES);
  
  ...
}


// Now ScreenShot
Just only one item displayed and occurred Access Violation error when mouse move on gallery control.


// To-be ScreenShot



// CallStack






// Stange Codes
I think below codes are strange...

void CXTPControlGallery::RepositionCore(BOOL bCheckScroll)
{
CRect rcItems = GetItemsRect();

int x = rcItems.left;
int y = rcItems.top;
BOOL bFirstItem = TRUE;

int nCount = GetItemCount();

    // if item count is 10, m_arrRects will be set size too
m_arrRects.SetSize(nCount);
int nRowHeight = 0;

for (int i = 0 ; i < nCount; i++)
{
CXTPControlGalleryItem* pItem = GetItem(i);
m_arrRects.pItem = pItem;
m_arrRects.bBeginRow = FALSE;

if (pItem->IsLabel())
{
...
}
else
{
...
}
    // but breaked when i == 5 ...
    // m_arrRects[6] ~ m_arrRects[9] are will be null pointer!!!
if (bCheckScroll && y + nRowHeight + rcItems.top > rcItems.Height())
{
break;
}
}

y += nRowHeight;

m_nTotalHeight = y - rcItems.top;
}




Thanks.



Replies:
Posted By: agontarenko
Date Posted: 22 July 2016 at 9:25am
Hello,

I'm glad to inform you that the issue has been fixed. The fix will be available in the next beta or final release.
(svn revision 17840)

Regards,
Artem Gontarenko



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