Recently I moved from NetBeans to GitHub Atom editor. How can I access properties and functions of classes in the editor?
I use a mix with the symbol gen and symbols view packages. First one very good about generating ctag file for your project and second one for inspect code and jump to the definitions of tags. Also, it supports Show all symbols in current file future. It have to show for you the members and properties of your classes.
In short: after installation open a work directory with your project and try alt + cmd + g, wait several seconds, ctags file generating now for you and after that cmd + r and just start typing any part of a method or property in the input.
In addition to all the previous answers, I would recommend you to check Atom's package goto-definition, with its optional "performance mode" (which requires you to install ripgrep).
goto-definition will allow you to find and access properties and
functions/classes definitions even if they are not written in the same file. In combination with ripgrep, goto-definition is extremely fast, and you will not have to wait for file indexing within your project.
If you are referring to the members of a Java class (which I assume, since you've used NetBeans before), then this is currently not supported in Atom.
Atom is a (fairly simple) editor that allows you to edit text files, while full-blown IDEs (Integrated Development Environments) like Eclipse, NetBeans or IntelliJ IDEA have full language support including running, debugging and browsing Java class information. It might be better to stick with one of the IDEs I mentioned if you are looking for this kind of functionality.
Having said that, there's the https://atom.io/packages/atom-ctags package, which supposedly can show some meta information about classes you're working on. It's primarily for C++, although it might work for Java as well (I haven't tried).
Related
I have a puzzling situation. Using Eclipse Oxygen.
One project, which I think I started as a Web Project in Eclipse Neon, does syntax highlighting for CSS files.
My new project, which I think started out as a PyDev Project here in Eclipse Oxygen, does not do highlighting for CSS files.
I'm unclear about the types of project because neither of the icons in Package Explorer (which are different) seems to correspond to any of the possible projects when you go File --> New (I've looked at all of them, including the icons under Other).
So it's really 2 questions: how do I find out what project type I'm working on... and how then do I configure the PyDev one (if such it be) to apply syntax highlighting to CSS.
Incidentally, the PyDev project is using a project location outside the default Workspace, not that this should make any difference.
Installation instructions can be found in the WTP Wiki at https://wiki.eclipse.org/WTP_FAQ#How_do_I_install_WTP.3F . Or you can use the Marketplace entry for it at https://marketplace.eclipse.org/content/eclipse-web-developer-tools-0 .
As suggested earlier, I believe you were missing highlighting because the WTP tools weren't installed in your PyDev environment. Nevertheless, if you need to spend more than a few minutes working with CSS, I would encourage you to give CodeMix a try for truly superlative CSS support in Eclipse:
Supports all the CSS 3 properties, including support for variables
In-built Emmet integration reduces typing required
Includes a CSS validator
Sass and LESS supported too
For more, see: https://www.genuitec.com/tech/css3-in-eclipse/
I'm frustrated by the lack of flexibility in the Visual Studio project/solution, but I realized that now that it uses MSBUILD it might be quite powerful but just doesn't expose that to the IDE. So I took a look at MSBUILD docs and don't know where to start! I wish there was a Nutshell book for that. Is there any good tutorial someone could point me to?
More specifically, here is the kinds of things I want to do:
Run a utility pre-processor to generate .CPP and .H files, which are then used by a regular C++ project. There are multiple inputs (to figure dependencies of; specifically should know if a normal .h file it uses has changed) and multiple outputs (at least one .cpp and one .h file) that are used as files in another project.
FWIW, the most complex case involves using Qt in a "normal" C++ project that can be built using VS Express 2010 or MSBUILD directly from a script on a server. Since that is a common library, there might be some guides or whatever to help? Note that a VS plug-in is not useful for the building stage, but could be used to initially generate project files that then rely only on MSBUILD and stuff included with the source code.
Would somebody please point me in the right direction?
--John
It gets worse from there, but that's my first goal.
I found the kind of information I was looking for in a book MSBuild Trickery: 99 Ways to Bend the Build Engine to Your Will by Brian Kretzler.
In the first 18 pages I found a few key pieces of information that, along with the on-line documentations I've already gone through, helps clear things up enough to try tackling my project. Details of interest include the processing order of how MSBuild reads and operates on the things in the file, quick points on when wildcard in items are expanded and how to handle generated files, and how to see what's happening in some practical cases or even step in the debugger.
FWIW, I managed to attack my problem without using the murky ".targets"/rules files that I have yet to understand, but only using better documented/exampled features (in particular, a Target that has wildcard items doesn't care that the file name extension is not in any ".target"; is simple enough to copy from example and allows the files to be seen in the IDE Project and added to the list using the IDE; again, the FileExtension there just works OK.)
I've been asked to customise the layout of the GNOME 3 desktop. Apparently the way to do that is by writing an "extension".
I've managed to do some of the things I wanted to do, but I feel utterly starved of information. I cannot find any useful documentation anywhere. I've wasted entire days of my life frantically googling every imaginable search term in a desperate attempt to find useful information.
The GNOME website has hundreds of extensions for download. These are not trivial 3-liners; they're sophisticated pieces of code. It defies belief that anybody could write these without documentation explaining how to do it.
Please, can somebody tell me where the actual documentation is? So far, the best I've managed to do is take apart existing extensions trying to track down the magic command that does the specific bit I'm interested in. (Not an easy task!)
Command names, object paths, example programs, anything would be helpful!
I have recently dug into it myself. The documentation is usually sparse or outdated. Here are some sources which helped me to get started (and through development):
Basic Stuff
Step-by-step tutorial (Gnome 3.4)
Unofficial documentation for the JavaScript bindings of many libraries
The sources of the gnome-shell's JavaScript bindings
Explanation of the St (Shell Toolkit) Ui-Toolkit components.
Some unofficial guidelines to get your extension on extensions.gnome.org
Since the documentation is nearly unavailable (or up to date), you'll need to do a lot of source-reading. I linked the gnome-shell sources above (the JavaScript part) which is a good start when diving into parts that are not covered by the In-official documentation (which is the most complete thing you'll find).
What's also particular helpful is checking extensions.gnome.org for extensions which do similar things to what you want to create, and look at their sources (most of them are open-source on GitHub or Bitbucket. You can also install them and find the sources under ~/.local/share/gnome-shell/extensions/).
When searching for something to use or more documentation on a particular function, you can also consult manuals for bindings in different languages (thought the parameters and return-values might not match).
Last but not least, here is some debugging advice:
LookingGlass is not particularly helpful. It only shows one line of an exception (the description) and only if they occur at startup time (when your extension is first started).
For full StackTraces and runtime-exceptions, consult the ~/.xsession-errors-file. It might be very long and bloated. I use this handy script to read it:
# Grabs the last session-errors from the current X11 session.
# This includes full Stack-Trace of gnome-shell-extension errors.
# See https://live.gnome.org/GnomeShell/Extensions/StepByStepTutorial#lookingGlass
tail -n100 ~/.cache/gdm/session.log | less
Note that since Gnome 3.6, if you are using gdm as display manager, the current session log is the file ~/.cache/gdm/session.log.
On some newer distros using systemd, you can get the error logs with:
journalctl -f /usr/bin/gnome-session
For debugging the prefs-part of your extension, you can launch the preferences by using the gnome-shell-extension-prefs-tool from a terminal, to see any exception-output on the console (you can also call the tool like gnome-shell-extension-prefs [uuid], to directly show your extensions preferences).
Since there is currently no real way of debugging with breakpoints (there is, but it's tricky), you can log on the console for quick checking, use the print()-function. You will see the output as mentioned above (either in the sessions-error file or on the terminal when starting gnome-shell-extension-prefs-tool).
Although it might be a little hard to get into it, the extension framework is quite powerful. Have fun!
I wrote a Blog-Post with somewhat greater detail, which can be found here: Making Gnome-Shell Extensions
An extensive list of references can be found on the Gnome Developer - API Reference page.
I used the following for my extension, but your use may vary:
GTK+ 3
GTK+ is the primary library used to construct user interfaces in GNOME applications. It provides user interface controls and signal callbacks to control user interfaces.
GDK 3
GDK is an intermediate layer which isolates GTK+ from the details of the windowing system.
Clutter
Clutter is a GObject based library for creating fast, visually rich, graphical user interfaces.
GObject Introspection
GObject Introspection is striving to provide a middleware layer between (GObject based) C libraries and language bindings.
Shell
Shell Reference Manual
St
St - Shell Toolkit - is the GNOME Shell's custom Clutter-based toolkit that defines useful actors. Some of these actors, such as StBoxLayout and StBin implement various layout options.
Icon Theme Specification
This freedesktop.org specification describes a common way to store icon themes.
NOTE: These last two are very helpful in finding visual element parameters!
PyGTK
PyGTK is GTK+ for Python. This reference contains a chapter for each Python PyGTK module (that corresponds to the underlying GTK+ library) containing the class descriptions.
PyGObject
PyGObject is a Python extension module that gives clean and consistent access to the entire GNOME software platform through the use of GObject Introspection. Specifically speaking, it is Python Bindings for GLib, GObject, GIO and GTK+.
This reference contains a chapter for each PyGObject module containing the class descriptions.
The documentation is on:
https://gjs.guide/extensions/
For the documentation of libraries:
https://gjs-docs.gnome.org/
More details on https://gjs.guide/extensions/overview/architecture.html
The other stuff you might want to check are
https://gitlab.gnome.org/GNOME/gnome-shell/blob/main/js/ui/popupMenu.js
https://gitlab.gnome.org/GNOME/gnome-shell/blob/main/js/ui/dialog.js
https://gitlab.gnome.org/GNOME/gnome-shell/blob/main/js/ui/modalDialog.js
https://gitlab.gnome.org/GNOME/gnome-shell/blob/main/js/ui/panelMenu.js
https://gitlab.gnome.org/GNOME/gnome-shell/tree/main/js
https://gitlab.gnome.org/GNOME/mutter
You can browse under js/ for more code to be reused.
You might also want to check https://gi.readthedocs.io/en/latest/index.html
Question:
I could not find anything under https://gjs-docs.gnome.org/ except some CSS and Javascript documentation ?!?!
Answer:
You have to first enable the docs to use them. Here, you will be mainly looking for:
clutter
meta
shell
st
Create a file like:
echo '{"docs":"clutter9~9_api/clutterx118~8_api/gobject20~2.66p/meta9~9_api/shell01~0.1_api/st10~1.0_api","hideIntro":"1"}' > devdocs.json
Import this file to https://gjs-docs.gnome.org/settings
Now you will be able to visit:
https://gjs-docs.gnome.org/shell01~0.1_api-global/
https://gjs-docs.gnome.org/shell01~0.1_api/
https://gjs-docs.gnome.org/meta9~9_api/
https://gjs-docs.gnome.org/st10~1.0_api/
https://gjs-docs.gnome.org/clutter9~9_api/
https://gjs-docs.gnome.org/clutter9~9_api-actor/
Warning: The version on the devdocs.json file is hardcoded. It will be outdated in no time, so you might want to check the version. The point is - you can not access docs until you enable them.
P.S. I know, this is a mess. This is how they did it.
I am trying to compile a Qt Library Project to use its DLL as a plugin of my Main Application.
I've come across this particular error and I cannot seem to get past it, no matter what I try.
I believe cluttering the question with code tags is pointless when I can just provide you with the "working issue" (for lack of better wording).
This is a link to both projects. The main application AND the plugin I am currently testing on.
(please remember to modify the path in the Application project of the dll. I am using absolute path, which will most likely never be the same one you will use. I used absolute paths to make sure the problem was unrelated to finding the file itself)
So far I've checked:
My Qt version is, indeed, 4.8.2. Built with VS2010 Command Prompt.
As far as I understood the documentation, my code (particularly the APlugin project) follows the documentation instructions word by word. There's some space for human error, but I believe I got it right. as specified here(The Lower-Level API: Extending Qt Applications)
I am able to generate other QPluginLoader::errorString() errors (for example, using an invalid path to the .dll file will return a "file not found" error). Thus diminishing the margin of error in its use.
As of today, Google results are, at best, cryptic and/or do not apply to my current context of development (I am on VS2010, Win7 N Ultimate, Qt 4.8.2)
I believe it's better that I provided projects where the issue is reproducible, instead of just cluttering the question with code, but if you think I still should copy-paste my code, let me know and I will provide it explicitely in the question.
The only thing I am able to provide so far is that, albet I don't use a .pro file, I shouldn't need it, because my application will be windows exclusive, and the vcproj file already contains that data.
I need to define a model for newly created projects in Aptana.
Basically, I want, anytime, when I create a new project, it adds some defined directories/files (not existing files, but new ones) to this project.
I'm not even sure it's possible.
Aptana doesn't appear to support that.
Maybe you can just create a small external sript to do it for you? Not the ideal solution, but better then none.
This might be a longshot, but it is worth mentioning. Since Aptana is based on Eclipse, you might be able to see how Eclipse would handle custom project templates. It appears that the easiest way to go about this is to actually create an Eclipse plugin that has a Template Wizard. IBM has a nice guide on how to use PDE to create a Custom Template. I am not sure if you will be able use PDE from within Aptana (you might be able to), otherwise, you might need to download a stock version of Eclipse, create the Plugin, then install it in Aptana.
Aptana is based on eclipse, so you could use a combination of Maven Archetypes and the Maven eclipse plugin to achieve this really easily.
Download and install maven
Create a basic maven project using the quickstart archetype, Archetypes are project templates used to rubber stamp new project structures. The quickstart is a very basic project template
mvn archetype:generate
generate the eclipse project files using the eclipse plugin. This will create the standard
mvn eclipse:eclipse
tweak the pom until and re-run step 3 until you're satisfied with the layout etc. You'll no doubt have to add configuration the eclipse plugin to add the correct build spec and project nature. If you open an existing .project file it will contain the values you need. you can see here how to add them.
once the project is set up to your liking you can create your own archetype out of it and use this to rubber stamp new projects in the future.
mvn:archetype:create-from-project
now you can run the generate again and can select your archetype from the list. If its not there, you may need to run this first to update the list of archetypes
mvn archetype:crawl
Open Source your archetype for others to use ;)
It's very simple in Studio 3. Try the following: http://wiki.appcelerator.org/display/tis/Creating+a+new+template#Creatinganewtemplate-Creatinganewprojecttemplate
Basically you create a .zip file of the project content, and then write a few lines of Ruby code to reference it.
Aptana uses (as I'm sure you know) its own 'new rails' project that gives you a variety of options.
I don't think it's beyond Will (the RadRails maintainer) to add a simple text field to that Wizard that would allow you to enter a command-line option parameter. He's always been very responsive with my previous bug and feature requests.
If you want to give that a try, and that works, then I would HIGHLY and STRONGLY recommend that you look into one of the new Rails features 'templates' in which you could make a generic template, then call it through the new input box. We use templates at my current job and they save us about 4 hours of work on each project. They are very easy to use...def...definitely.
If you can't wait for the input box, then you could always write the template then call it from within the command line (see
http://m.onkey.org/2008/12/4/rails-templates
for info about templates)
Unless RadRails three is light-years ahead of the latest release, though, you'll be missing out on a lot of very handy advantages of using a more community-supported solution such as VIM or TextMate. (I switched to VIM from RadRails about 4 months ago and have never looked back).
Eclipse has a Plugin Development Environment. If I'm not mistaken, you can also create project templates with it. Please try: http://www.ibm.com/developerworks/library/os-eclipse-pde/