Requested Three suggestions

[ganzpopp]

IrfanView is already a killer app, but while working with it I noticed some small issues which might be changed in the feature:

Maintain current image position on reload of current image

This is very useful if one wants to compare changes of a specific part of the image. Right now, when the image is reloaded, IrfanView repositions the viewport to the upperleft corner of the image in case of incompletely visible images, or when zoomed in.

Keep IrfanView window maximized when cycling through directory and 'Display option' set to 'Fit images to desktop width/height'

When above option is set, IrfanView's window will adjust itself to the image size if the image is smaller than the view window. Maybe a centered view with still maximized window is a better solution.

Zoom to adjustable fixed zoom levels

At this moment, zoom is only possible with relative, absolute and fixed values, which works fine. It would be nice if there is an additional possibility leading to values of 50%, 100%, 150%, 200%, etc. independent of current display option and current zoom level (e.g. when zoomed at 41%, zooming in leads to 50%, then to 100%, etc.). The zoom step should be entered in the zoom step edit box.

All should be optional of course, but for me it would increase productivity a lot!

[Mij]

Maintain current image position on reload of current image

This has been requested previously. IrfanView does have a Scroll lock feature but it does not work correctly when you change images.

Keep IrfanView window maximized when cycling through directory and 'Display option' set to 'Fit images to desktop width/height'

Use "Fit images to Window" view if you do not want the window size to change, and "Do not fit anything" for a 1:1 view.

Zoom to adjustable fixed zoom levels
At this moment, zoom is only possible with relative, absolute and fixed values, which works fine. It would be nice if there is an additional possibility leading to values of 50%, 100%, 150%, 200%, etc. independent of current display option and current zoom level (e.g. when zoomed at 41%, zooming in leads to 50%, then to 100%, etc.).

That is basically what the Fixed value option does except that there are more steps between 50% and 100%. The values are preset though. You cannot change them.

[ganzpopp]

Use "Fit images to Window" view if you do not want the window size to change, and "Do not fit anything" for a 1:1 view.

Yes, but then I cannot fit the images the way I want it without changing the window size all the time...

That is basically what the Fixed value option does except that there are more steps between 50% and 100%. The values are preset though. You cannot change them.

So we need an adjustable value for the Fixed value zoom option!

[Skippybox]

Can't you use fullscreen? Why don't you want the window to resize to small images?

[Mij]

I cannot understand what you do want for your second feature, ganzpopp.

If you want a centred image in a maximized window try;-
1. Set the window to maximized
2. Under View/ Display options click "Fit only big images to window"
3. Under View/ Display options click "Center image in window"

and tell us what you do not like with that.

[ganzpopp]

and tell us what you do not like with that.

Well, consider my following situation, where I want to view to images vertically fitted in the maximized window.

The first image has a size of about 10,000 by 2,000 so it will be fitted nicely as expected. My next image (I ask for using [Space]) has a size of 3,000 by 400,000 (yes, that large). Then the image is displayed as expected, but the window will be resized, for some reason, to a non-maximized state.

So my question is (and thus my suggestion), how to suppress this behavior during cycling through the directory. A suitable option name for this would be: 'Keep window maximized at all times'.

Right now this does not happen.

[Skippybox]

Could you use Properties>Misc. 2>Center window when loading new image? I think it is broke though. See Center window does not center!

[Mij]

Sorry I can't help on that one ganzpopp. I know that others do have problems in IrfanView with very big files but I have never used anything that huge.

[ganzpopp]

Sorry I can't help on that one ganzpopp. I know that others do have problems in IrfanView with very big files but I have never used anything that huge.

I understand, but that was only an illustrative example. The point is, I think, that the window of IrfanView shouldn't resize anyway for no good reason, at least not because of the image size.

[Skippybox]

So, is it actually the non-centering of the window that you don't like?

[Mij]

I understand, but that was only an illustrative example. The point is, I think, that the window of IrfanView shouldn't resize anyway for no good reason, at least not because of the image size.

I agree that using those settings that I gave you the window should never resize. If it does then it is a bug and it should be in Bug Reports not Feature Requests. What I was explaining was that I have no files that size with which I can confirm it.

[ganzpopp]

So, is it actually the non-centering of the window that you don't like?

No, that's not what I mean. That's optional already in 'Display settings'.

I agree that using those settings that I gave you the window should never resize. If it does then it is a bug and it should be in Bug Reports not Feature Requests. What I was explaining was that I have no files that size with which I can confirm it.

I understand. And I think we understand each other now on my point. I will submit this as a bug.

Thanks!

[Skippybox]

So, is it actually the non-centering of the window that you don't like?

No, that's not what I mean. That's optional already in 'Display settings'.

No, I don't mean Center image in window under View>Display options (window mode). I meant the option, Center window when loading new image in Options>Properties/Settings>Misc.2>Window options. Did you try that?

[ganzpopp]

No, I don't mean Center image in window under View>Display options (window mode). I meant the option, Center window when loading new image in Options>Properties/Settings>Misc.2>Window options. Did you try that?

Just tried your suggestion, but it does not change the behavior unfortunately.

Hopefully this can be fixed in the next version of IrfanView.

[Skippybox]

Just tried your suggestion, but it does not change the behavior unfortunately.

Hopefully this can be fixed in the next version of IrfanView.

Well, like I said, I think center window is broken. What I was trying to find out was, do you just want the window centered for viewing, or do you absolutely not want the window to change size and position.

The only thing I can think of is to use "Do not fit anything" maximized and to use the command line switch /resize=(0,h) or /resize=(w,0). Basically you would put this something like this in your external editor (SHIFT+E) box:

C:\Program Files\IrfanView\i_view32.exe ""%1" /one /resize=(0,634) /aspectratio /resample"

Now as you browse, just press SHIFT+E to reload the image the correct size. You would need to change for width and height, so two copies of IrfanView or two INIs would help. You also would need to figure out the width or height for the resize to match your viewer.

If this is too hard or unacceptable for your use, there are other viewers or a batch file might help.