Never mind, the new UI components have an HTML panel available. Works for me…

handles.text_explorer = uicontrol(fig, 'Style','Edit', 'Units','characters', 'Max',1000, 'HorizontalAlignment','Left', 'Position',pos_text_explorer);
handles.jScrollPane = findjobj_fast(handles.text_explorer);
jViewPort           = handles.jScrollPane.getViewport;
handles.jEditbox    = jViewPort.getComponent(0);
handles.jEditbox.setEditorKit(javax.swing.text.html.HTMLEditorKit);
handles.jEditbox.setEditable(false);

I inserted a callback to set scrollbars after a position change:

cbFunc = @(h,e) set(h,'VerticalScrollBarPolicy', javax.swing.ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS, 'HorizontalScrollBarPolicy', javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
handles.hjScrollPane = handle(handles.jScrollPane, 'CallbackProperties');
set(handles.hjScrollPane, 'ComponentResizedCallback', cbFunc);

Then I have another function to set scrollbars:

function set_scrollbars(handles)
    handles.jScrollPane.setHorizontalScrollBarPolicy(javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
    handles.jScrollPane.setVerticalScrollBarPolicy(javax.swing.ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
end

I call that function everywhere (after text change, position change, etc…) to see if I can get the horizontal scrollbar working. Sometimes a scrollbar is rendered, but then quickly disappears. Or sometimes (no idea why…) a scrollbar remains visible, but it is not functional (no slider in it). Same behavior when not using HTML but using plain text. Strange…

@Yair

It works! Just have to add ‘file:/’ at the front of the path!
Thank you so much Sir!
😀

@Chopper – see here: http://undocumentedmatlab.com/blog/images-in-matlab-uicontrols-and-labels

I am kind of new when it comes to combining MATLAB with Java..
However, I would like to ask on something that is related to this ‘Rich-Editbox’

Well, I read and set the HTML with the following codes: –

myHtml = 'About1.html';
readFile = fileread(myHtml);

hFig = gcf;
jEditPane = javax.swing.JEditorPane('text/html', readFile)
jScrollPane = javax.swing.JScrollPane(jEditPane)

[hcomponent, hcontainer] = javacomponent( jScrollPane, [], hFig)
set(hcontainer, 'units', 'normalized', 'position', [0,0,1,1]);

The texts are fine but not for the image.

Supposedly it should be displaying like this (directly from html page)
https://postimg.org/image/lge4hdvb9/

but in MATLAB, it appeared like this one
https://postimg.org/image/3rmdprjk5/

All the src=’path’ is correct.. But I have no idea on how to display the image in MATLAB… Any idea?

Regards,

Thanks for your tips and this web.

I have an easy question, I think. I’ve created an edit box and placed a simple HTML text on it. I also have created a button to copy this formatted text to the clipboard when you push on it. But as we are working within the ‘java space’ and the function “get(hObject,’String’)” no longer works, I have no clue on how to do it.

Yeah, I am also interested in that topic! 🙂

@Scott – I think you are looking for this: http://undocumentedmatlab.com/blog/rich-contents-log-panel

Thanks for the great ideas.

I would like to create an enriched MATLAB listbox where each line can have its own icon, font style, and callback.

Is this possible along the same lines as the edit box example above?

I wish to limit the number of characters a JTextPane can contain. Accordingly, I plan to implement a document filter, which will impose a max character limit of my choosing. (http://docs.oracle.com/javase/tutorial/uiswing/components/generaltext.html#filter)

 
jTextPane = javax.swing.JTextPane();
maxCharacters = 300;

import javax.swing.text.*
doc = jTextPane.getStyledDocument();
doc.setDocumentFilter();
% ...
% ...
% ...

Still, I am unable to connect the next step in the process; how do I add a documentFilter? NOTE: Matlab will not let me access javax.swing.text.DocumentFilter.FilterBypass, a necessary input.