Any one know how i can create a text area which displays lines of text which can not be edited but allows you to edit the bottom most line for text.
basically in a similar fashion to embedded consoles inside applications that allow you to run code direct on the application.
currently using a textview i can go and edit the code above and the output response are also editable.
It's possible using a GtkTextView, but not trivial. You have to create a tag that makes the text uneditable, and apply it from the beginning of the buffer to just before the end position. Then when you receive and process input, extend or re-apply the tag to cover that line of input and your program's response to it.
Here's an example of it being done:
creating the tag
applying the tag
Related
I noticed that when GitHub pages with mkdocs have text or images in between numbers it ignores the numbering in the source document and instead restarts numbering. See here for an example of this.
Is there a way to force mkdocs to render the numbers in the original document instead of inventing its own?
If you add them all as 1. space and text, then sub item as image with a tab, it should work. As an example:
1. Option 1
imgage or next text
1. Option 2
You can check this documentation built using mkdocs as an example.
As Zoran mentioned above that was part of it. Things I figured out:
Code must be double tabbed - you cannot use ```
Indented lists must also be double tabbed - I wasn't able to get a single tab to work
Images do not have to be tabbed - they can be in line with the above text
There should not be an empty line when an image follows a numbered list item BUT FOR CODE there must.
I still haven't completely figured out. mkdoc's behavior is not as predictable as regular markdown
I want to add a line counter to a textfield for a sort of text editor. Looking around, I've seen that a lot of questions on this topic are either unanswered, or do not answer in a satisfactory manner. Something like this How to add prefix widget on every new line in textfield in flutter? asks fundamentally the same question I am, however the only answer there is to create a new widget for each line.
This is one method that could be used, where I add new textfields in a list and build them in a row with their respective line number. However, this means I cannot have those textfields function on more than one line, and I will need to add more textfields each time a user wants to add enough text to make it overflow. The biggest flaw I see with this, though, is that it makes it harder (if not impossible?) to easily select and edit text as you would expect from a text editor, such as using the built in systems for a textfield.
Now, for my solution I am using https://pub.dev/packages/extended_text_field as a way to gain some functionality that I don't really want to take the time to figure out how to do on my own (embedded onClick callbacks for text), so it would be ideal if I could continue to use that without having to fork or even have to figure out how to write my own version.
The primary issue I'm running into is not necessarily getting the number of lines, which can be found using some solutions from How can I add line numbers to TextField on Flutter?, but rather how and where to show those line numbers.
As above, it's not really ideal to pair some number alongside a textfield and create a new textfield for each expected line. What would be ideal, however, is something like , where each line number is prefixed to the line built by the text field. For example, like this: . Something like the solution proposed in Add a prefix to every line in a multiline Text Input in Flutter? would not work especially well, because the solution there is to literally add string values to the textfield, which would require systems to clean the text, in addition to causing an unexpected ability to actually change the numbers (or other line prefix) by the user.
So -- is there any way to implement a line prefix for each line in a textfield? Would it be possible to override an InputDecoration (which allows creating the individual line prefix, but nothing more) to create a line prefix for each line drawn by the textfield? If not, exactly what would be needed to create this? I am familiar with flutter, but I am not quite as familiar with the lower level API's.
I'm using TinyMce textarea editor and have a problem. As you probably know Tinymce transforms a standard html textarea into a rich text editor.
On our 'edit listing' page we call up some text from our db for the user to edit (previously in a standard textarea, now in the tinymce textarea.
Previously the standard textarea would preserve linebreaks and the user would get several paragraphs of text in the text area, now with tinyMCE they get a huge chunk of text with no linebreaks. (I have pasted an example of an entry in our db below - as you can see it has line breaks in it by tinymce seems to be ignoring them when it displays them in the editor).
Just to clarify my issue is now that tinymce is stripping something when I submit the form, it's that when I pull text (that contains line breaks) from the db and populate the tinymce textarea with that data (for the user to edit) in the tinymce textarea - the text appears (in the tinymce textarea) as one massive chunk of text with my paragraphs (whereas in a standard textarea it is nicely formatted with linebreaks)
Any help on how to resolve this would be greatly appreciated - do I need to use some sort of populate() type function to put the text in, or maybe I need to replace all the linebreaks with a different special character that tinyMCE will recognise as a line break and preserve?..
Thanks in advance.
Nick
example from db:
Here is line one
Here is line two
And here is line three
Which appears in tinymce as:
Here is line one Here is line two And here is line three
I faced a similar a problem, a while back and had questions just like yours. Also I finally ended up on SE just like you.
Anyway, I think I have the solution to your problem. If you are using PHP as your server side language, then you should use nl2br() PHP function.
Suppose you have stored your content fetched from the database in a php variable. Something like this:
$content = $row['content'];
Now when displaying it on to your screen, use the nl2br() function.
echo nl2br("<p>".$content."<p>");
Now, this part inside () depends on how you want to output the data. And I will leave it to you to figure that part out.
Hope this helps.
I have text files which contain code inside an Editor. The user can run an analysis on a certain part of his code, which will result in a set of lines which should be hidden. Next I want to present the user with only the remaining lines, but with correct linenumbers, as from the original document. Possible solutions I thought of:
Open a new Editor which does not contain the hidden lines, but *somehow* still has correct line numbers
Hide the lines in the original editor, and offer a button for the user to 'unhide'. Probably a similar solution required as in 1.
I don't really know how to go about this. Folds would be a weird solution, because they can be unfolded individually, and seem to be more semantically tied to things like methods or classes. Also, simply creating a new document without the hidden lines results in wrong linenumbers.
Use a ProjectionViewer and reflection to invoke the private method ProjectionViewer.collapse(int offset int length). This method is only used internally to hide a certain portion of the text, by manipulating the ProjectionDocument (see http://eclipse.org/articles/Article-Folding-in-Eclipse-Text-Editors/folding.html).
After this, folding text in the editor using the annotations(the little +/- icons) WILL break everything, so this solution and regular folding are mutually exclusive.
I think it should be pretty simple what I want to do, basically I have one edit box that displays a value in percentages and another that I want to update to display raw values. I've tried using the following code under the edit1 (percent) callback:
currentKey = str2num(get(gcf,'CurrentKey'));
percent = str2num(get(handles.edit1,'String'));
if ~isnan(currentKey) && ~isnan(percent) && 0<=percent && percent<=100
set(handles.edit2,'String',num2str(2*percent))
end
But it will only update the second edit box if I first click outside of the first one. Anyone have an idea of what I should be doing?
Thanks!
I think this link should help you:
How can I make the text that I enter into an edit text box update dynamically?
Solution:
This enhancement has been incorporated in Release 2011a (R2011a). For previous product releases, read below for any possible workarounds:
This is expected behavior of the Edit Box UICONTROL in MATLAB.
You can try using the 'keypressfcn' to grab the keyboard input. The attached two files demonstrate the ability of real-time text update. As you enter text into the upper edit box, the text will be copied to the edit box beneath it as you enter.
Please download the following two files:
test_keypressfcn.m
test_keypressfcn.fig
Execute the program.
A GUI will appear. Enter text in the upper edit box displayed in the GUI.
Observe the text in the lower editbox is updated dynamically or in real-time as you enter test in the upper edit box.
Please note that this will work only for text that is continuously entered in the editbox. If you type in between words already entered in the editbox the gui will not perform as expected. You will need to implement logic similar to the one in this example to get the behavior that you desire.