TImageViewer or equivalent
lazarus / 39-Graphics

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Dzandaa · 2022-04-26 14:28

Hi everybody,

Working with Lazarus Pascal 2.012 FPC 2.3.0 on Windows, Linux and
MacOS

I am looking for a control or code for zoom and pan a BGRA image.
An equivalent to Delphi TImageViewer.

Thank you.

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AlexTP · 2022-04-26 14:58

Try this one
https://wiki.freepascal.org/ATImageBox

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winni · 2022-04-26 15:09

Hi!

For your needs there is the component

BGRAImageManipulation

In the tab BGRA Controls.

Winni

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Dzandaa · 2022-04-27 14:17

Hi,

BGRAImageManipulation is not really what I want, thank you anyway.

I already tested ATImageBox,
It's close to what I need, but I had some refreshing problems panning
with the mouse
when zoom is out (see attachment).


I have a TBGRABitmap called Picture, and for the moment, I show it on
a TImage without pan and zoom.

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winni · 2022-04-27 20:15

Hi!

The BGRAbitmap has a lot of features like

* zoom
* rotate
* GetPart

So it's just some lines of code.

Winni

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Dzandaa · 2022-04-28 08:23

Hi,

I know BGRA has a lot of features and I've been using it for quite
some time

What I'm looking to find out is if there is already a tool that allows
you to do Pan and Zoom without rewriting all the code.

What most closely resembles what I'm looking for is ATImageBox.