Class: Popup

Inherits:
Screen show all
Defined in:
lib/tabscroll/popup.rb

Overview

A simple centralized popup on the terminal.

Instance Attribute Summary

Attributes inherited from Screen

#height, #width

Instance Method Summary collapse

Methods inherited from Screen

#background, #box, #clear, #move, #mvaddch, #mvaddstr, #mvaddstr_center, #mvaddstr_left, #mvaddstr_right, #refresh, #resize, #set_color, #timeout, #with_color

Constructor Details

#initialize(title, text) ⇒ Popup

Creates a Popup with ‘title` and inner `text`.

It resizes to contain the whole text plus a 1x1 border around itself.



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# File 'lib/tabscroll/popup.rb', line 11

def initialize(title, text)
  @title = title
  @text = []
  text.each_line do |line|
    @text += [line.chomp]
  end

  max_width  = title.length
  max_height = 1

  @text.each do |line|
    max_width   = line.length if line.length > max_width
    max_height += 1
  end

  max_width  += 2 # left-right borders
  max_height += 1 # down border

  x = Curses::cols/2  - max_width/2
  y = Curses::lines/2 - max_height/2

  super(x, y, max_width, max_height)
  self.background ' '
  self.box

  self.mvaddstr_center(0, title, Engine::Colors[:cyan])

  y = 1
  @text.each do |line|
    self.mvaddstr(1, y, line)
    y += 1
  end
end

Instance Method Details

#show ⇒ Object

Makes the Popup appear on the screen and wait for any key. When it exits, clears the screen erasing itself.



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# File 'lib/tabscroll/popup.rb', line 47

def show
  finished = false
  while not finished
    c = Curses::getch
    case c
    when 'q'
      return true
    when 'h'
      finished = true
    end
  end

  Curses::stdscr.clear
  Curses::stdscr.refresh
  return false
end