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Bug 508

Summary:	Error when unzoom with zoom history
Product:	VCL TeeChart	Reporter:	yeray alonso <yeray>
Component:	Chart	Assignee:	Steema Issue Manager <issuemanager>
Status:	RESOLVED FIXED
Severity:	enhancement	CC:	david
Priority:	---
Version:	131119
Target Milestone:	---
Hardware:	PC
OS:	Windows
Chart Series:	---	Delphi / C++ Builder RAD IDE Version:
Attachments:	zoom in and out

Description yeray alonso 2013-12-09 10:58:54 EST

Created attachment 52 [details]
zoom in and out

Reproduced with the actual sources in XE5, both with Standard and Pro.
Can't be reproduced with the actual sources in D7.

To reproduce the error, just run the project attached, zoom in once and unzoom.

http://www.teechart.net/support/viewtopic.php?f=3&t=14558

Comment 1 david berneda 2013-12-16 07:23:26 EST

Fixed. 

The problem (double-free), happened in XE4 and 5.
Zoom history snapshots are stored in a TObjectList in XE4 and 5, and the TCustomChart.RemoveZoomSnapShot method was both freeing and deleting the history item, instead of just deleting it, as TObjectList automatically destroys deleted objects.

Now in XE4 and 5, the zoom item is deleted only.