MarvinSketchForm: Center reaction sketch?

Hi Victor,

While we are now approaching a high level of usability of the MarvinSketchForm with the latest modifications, there's a probably final non-cosmetic item to resolve. The issue is, that when opening an existing sketch in the dialog editor, it often doesn't appear centered, as one might expect, but is rendered maybe near an edge, the rest of it being clipped - although there would be plenty of space available to fully display it. The user then has to scroll manually to center it, which rather awkward.

Therefore: Is there a way to center a sketch on the sketch pane? And if yes, would it be an option to include this as a default behaviour in your coming new new version of the MarvinSketchForm?

Stefan

 

 

Hi Istvan, could you please send us a possible solution if it is available?

If we have an option for that I would expose it in the 5.6 (deadline is today).

 

Thanks,

Viktor

Stefan,

var molPanel = sketcher.Value.getMolPanel() as chemaxon.marvin.sketch.swing.SketchPanel;
molPanel.centralizeMoleculeDisplay();

Istvan will expose this centralize molecule display option to the sketch pane (interface) in java, so from 5.6 you can directly access it by using

object NativeEditor new interface property in 5.6 .NET version.

 

https://www.chemaxon.com/forum/viewpost35764.html#35764

Viktor

Ok, thanks, thats good news. Is there any workaround for now, or will 5.6 be released soon anyway (my understanding is that the above two lines of code are a reference for future use)?

Stefan

var molPanel = sketcher.Value.getMolPanel() as chemaxon.marvin.sketch.swing.SketchPanel;
molPanel.centralizeMoleculeDisplay();

these lines you can use now.

 

later on:

sketcher = TypecastTo(NativeEditor, MSketchpane) // as nativeEditor is object => to avoid inlcuding JChem by default
sketcher.centralizeMoleculeDisplay();

will be avialable on the sketcher interface.

I was asking because I was unable to get a reference for "chemaxon.marvin.sketch.swing.SketchPanel". I also couldn't find anything on "centralizeMoleculeDisplay" in the JChem_NET API documentation. Is there a specific dll I should reference?

It should be avialable in 5.5. It was already released in the last month.

 

It is not a documented API right now will be in 5.6,

Yes, I am referencing 5.5, and still intellisense doesn't show any of the shown members. However, don't worry - I can wait until 5.6 is released, if it isn't planned in a very distant future.

Uploaded the project again. It contains the code.

Yes, your code works, no problem there. When I try to port it to my project, it doesn't any more - I get the attached error tooltip. I have completely replicated all of your references and imports, but its still the same. I also don't see any chamaxon.marvin.sketch namespace in the object browser, and I am using JChem 5.5.

If you don't have a spontaneous idea what this could be, then I think I have spent plenty of time on this and will wait for the 5.6 release ...

I think your project points to a different assembly sitting in the GAC side-by-side.

Please check your GAC ...

 

Or you have more than one assembly added bringing the namespace on the board.

Please find attached the list of my required references. Maybe you see something I don't see...

1. Worth checking:

C:\Windows\assembly\GAC_MSIL\ChemAxon.NET\ 
C:\Windows\assembly\GAC_MSIL\JChem\ 
C:\Windows\assembly\GAC_MSIL\Policy.5.5.JChem\ 

should be checked by Total Commander and delete the extra one (which is not shown in the list you sent). 
And the registry policies should also be checked if they point to the correct version of dlls: 

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Fusion\PublisherPolicy\Default\Policy.5.4.JChemExt__d25ce09139c726a9\1\5.4.1.2099

 

2. Worth checking:

please remove the assemblies from the solution and add them again to your project if does not work,
apply what I sent to you, manually you can edit the project file 
 

<ItemGroup>
    <Reference Include="ChemAxon.NET, Version=5.4.1.1900, Culture=neutral, PublicKeyToken=d25ce09139c726a9, processorArchitecture=MSIL">
      <SpecificVersion>False</SpecificVersion>
      <HintPath>..\..\..\..\..\Program Files\ChemAxon\JChem .NET API 5.4.1.1062\ChemAxon.NET.dll</HintPath>

<Reference Include="JChem, Version=5.4.1.1062, Culture=neutral, PublicKeyToken=d25ce09139c726a9, processorArchitecture=MSIL">
      <SpecificVersion>False</SpecificVersion>
      <HintPath>..\..\..\..\..\Program Files\ChemAxon\JChem .NET API 5.4.1.1062\JChem.dll</HintPath>

 

3. Use reflection (this is the ugliest solution) for calling that method. Because if it is working from my solution it should from yours, the real problem needs to be found out instead.

 var molPanel = sketcher.Value.getMolPanel();
Type panel = molPanel.GetType();
var method = panel.GetMethod("centralizeMoleculeDisplay");
method.Invoke(molPanel, new object[] { });

 

 

 

Victor,

I have checked your proposed reflection code, and it works just great! What a difference to what I got before, the editor dialog content now really looks as it should, no more awkward scrolling necessary,what a relief!-  I therefore think I will use your code as a workaround, along with the other reflection bits, until JChem 5.6 appears.

Whenever I find some time I will follow up your suggestions to isolate the root cause of the referencing problem, since that might be interesting too. Since this issue almost drove me crazy during the past few days, I'll give it a little rest now :-). I will let you know whenever I found something.

So I think we can close this thread as solved then for the time being. Thanks again for your help.

Stefan