Steema Issues Database

Note: This database is for bugs and wishes only. For technical support help, if you are a customer please visit our online forums;
otherwise you can use StackOverflow.
Before using this bug-tracker we recommend a look at this document, Steema Bug Fixing Policy.

Bug 889

Summary:	Zoom and Scroll in TTree changed the direction in v2013.08
Product:	VCL TeeChart	Reporter:	yeray alonso <yeray>
Component:	TTree	Assignee:	Steema Issue Manager <issuemanager>
Status:	CONFIRMED ---
Severity:	enhancement	CC:	buhl
Priority:	Lowest
Version:	140220
Target Milestone:	---
Hardware:	PC
OS:	Windows
URL:	http://www.teechart.net/support/viewtopic.php?f=5&t=15107
Chart Series:	---	Delphi / C++ Builder RAD IDE Version:
Attachments:	test project

Description yeray alonso 2014-08-18 08:44:52 EDT

I see the directions of both wnScrollVert and wnZoom changed from v2013.08.
- In v2013.07, with wnScrollVert, MouseWheelUp displaces the Tree view up (the text moves down) while MouseWheelDown displaces the view down (the text moves up). And with wnZoom, MouseWheelUp zooms the three out while MouseWheelDown zooms the three in.

- In v2013.08 and up, with wnScrollVert, MouseWheelUp displaces the Tree view down (the text moves up) while MouseWheelDown displaces the view up (the text moves down). And with wnZoom, MouseWheelUp zooms the three in while MouseWheelDown zooms the three out.

Also, from v2013.09 you can use the MouseWheel to scroll & zoom a TChart.
- In v2013.09 and up, with Panning.MouseWheel=pmwNormal, MouseWheelUp displaces the Chart view  up (the series move down) while MouseWheelDown displaces the view down (the series move up). And with Panning.MouseWheel=pmwNone and ZoomWheel=pmwNormal, MouseWheelUp zooms the chart in while MouseWheelDown zooms the chart out.

I think the zoom directions in TChart are fine.
However, I think we should change either the TTree scroll directions or the TChart scroll directions to have the same behaviour. As it is, they look contrary.

Comment 1 yeray alonso 2014-08-18 08:45:31 EDT

Created attachment 265 [details]
test project