samuallb / ncurses Goto Github PK

Hello I'm new to crystal and NCurses so maybe maybe is something wrong with my code

Objective

use all 256 colors of the terminal or create a custom color like: Color::Lime = 10

Demonstration

I altered the file src/lib_ncurses.cr adding the color i needed inside the color struct like this and it worked.

However if i try to do that inside the program it returns a compile error
enum LibNCurses::Color Lime = 10 end

Proposal

I would like to know how I can define new predefined color value or at least use raw Int32 values to the init_color_pair function, that only support statically defined LibNCurses::Color type and if It's not possible in the current state of the program make a few alterations and submit a pull request in your github

I'm still thinking the best approach but make the init_color_pair function support Int overloads sound the simplest solution to me. I tried and it seems to work but I don't know if it has security issues or affects the program in other unexpected way, so I would like to know your ideas about this problem

Thank You in advance

• wborder()
• box()
• (mv)whline()
• (mv)wvline()

man

I've been trying to get the hello world example working. All dependencies are satisfied, the shard.yml file has been run. The file I have is "main.cr", and -aside from the text to print- is verbatim to the example provided. This is what it looks like:

require "ncurses"

NCurses.start
NCurses.print "Hi\n"
NCurses.end

When I run this the program compiles without warnings or error messages, but no text is printed. I tried this in both the integrated VS Code terminal and the OS terminal, the result is the same.

Was there a recent change in the ncurses binary or is it a problem on my side?

Current operating system: Linux Mint 19.2 Cinnamon.

Crystal version: Crystal 0.32.1
LLVM version: 8.0.0
Default target: x86_64-unknown-linux-gnu

For use with attr_* functions

Is it possible to use scrollok with these bindings?

It seems that the result of get_char does not agree with NCurses::print if they are multi-byte unicode codepoints in NCurses::Key. Key probably needs specific to_char and to_s implementations.

You can simply test this using the examples/input.cr and typing using a non-English input (Easiest would be Russian or Chinese I guess)

I tested on MacOS. Linux is probably the same.

Where is clrtoeol?

I tried

require "ncurses"

NCurses.start

NCurses.print "Hello world!"
puts "test"

NCurses.end

On a Mac , but it only prints "test"