82 lines
1.6 KiB
Ruby
82 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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module Widgets
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class Search
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attr_reader :x, :y, :width, :height, :text, :cursor_pos
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def initialize(x, y, width, height)
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@x = x
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@y = y
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@width = width
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@height = height
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@text = ''
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@cursor_pos = 0
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end
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def render
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total = width - 1
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start = [0, cursor_pos - total].max
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cut = text[start...start + total]
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Curses.setpos x, y
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before_cursor = cut[0...cursor_pos]
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under_cursor = cut[cursor_pos] || ' '
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after_cursor = cut[(1 + cursor_pos)..-1] || ''
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Curses.attron Curses.color_pair 3
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Curses.addstr before_cursor
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Curses.attron Curses.color_pair 4
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Curses.addstr under_cursor
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Curses.attron Curses.color_pair 3
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Curses.addstr after_cursor
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end
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def putc(c)
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@text = "#{text[0...cursor_pos]}#{c}#{text[cursor_pos..-1]}"
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@cursor_pos += 1
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update
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end
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def left
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@cursor_pos -= 1
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update
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end
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def right
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@cursor_pos += 1
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update
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end
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def home
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@cursor_pos = 0
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end
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def endk
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@cursor_pos = @text.length
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end
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def backspace
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return unless cursor_pos.positive?
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@text = "#{text[0...(cursor_pos - 1)]}#{text[cursor_pos..-1]}"
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@cursor_pos -= 1
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update
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end
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def delete
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return if cursor_pos > text.length
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@text = "#{text[0...cursor_pos]}#{text[(cursor_pos + 1)..-1]}"
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end
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def update
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if @cursor_pos.negative?
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@cursor_pos = 0
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elsif @cursor_pos > @text.length
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@cursor_pos = @text.length
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end
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end
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end
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end
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