line-numbers

I'm trying to add line numbers to a JTextArea and am having some difficulties. The line numbers appear, but they do not scroll properly. I have a linked-list of a custom class that stores a line of data (log message) and a line number associated with it as well as visibility on whether it should be shown in the text area or not. So what I did was create two JTextAreas... one to store the logs, and the other to store the line numbers. The layout works and the line numbers populate correctly with the logs. The problem is when I try to scroll up or down. The logs adjust properly as you scroll,

I'm working on an 'IDE' for Android - it could be useful for editing short scripts / making quick adjustments to files. At the moment I'm just using a simple EditText, but I am wanting to add several features, for example Line Numbering down the left hand side of the EditText and Code Highlighting. Does anyone have any suggestions about how to approach this? For the code highlighting, I'm guessing I'll need to write my own subclass of EditText. For the line numbering, could I have a thin vertical TextView that has the same text size as the EditText?? Yes, I'm aware editing code on a mobile

Given a line number of a particular class source code (Java/C#) - is there an easy way to get the name of the method it falls within? (If it falls within one) (Presumably using an Abstract Syntax Tree) (This would be useful in limiting the output of checkstyle to just the method touched). I'm assuming you'd have to use an Abstract Syntax Tree to do Line#->MethodName. (Java-specific) If the class file was compiled with debug info then the line number table will contain a mapping of code<->line number. I don't think there's a built-in API for getting at this at runtime though I'm sure you can

I want to have a textarea which displays line numbers on the left. Wrap should be set to "off" (so that horizontal scrolling is available). I want to have my page as a single self-contained .html file (there will be no graphics), so I'd like to avoid any 3rd party frameworks. Which way should I go? How would you do this? I would start with two text-areas and synchronzation mechanism. Something like this, <script> window.sync = function(e){ var textarea = document.getElementById("lines"); var source = document.getElementById("some_text_area"); textarea.scrollTop = source.scrollTop; } window

I have wrapped the console API to provide granular logging levels as well as few other sugar features. This works fine, the only problem is that firebug (or whatever other console) will always report the line number the log came from as the line the console API itself is invoked. How would you suggest I make the console log the line number at which I call my wrapper function? I would prefer a cross browser solution but failing that a firebug plugin could be a good start. fyi I call my loging function like so: db.log(db.LogLevel.WARN, "Blah Blah Blah"); Interesting problem... I may have a hack