Class: Rufio::DialogRenderer

Inherits:
Object
  • Object
show all
Includes:
TextUtils
Defined in:
lib/rufio/dialog_renderer.rb

Overview

Renders floating dialog windows in the terminal

Constant Summary

Constants included from TextUtils

TextUtils::BREAK_POINT_THRESHOLD, TextUtils::ELLIPSIS, TextUtils::ELLIPSIS_MIN_WIDTH, TextUtils::FULLWIDTH_CHAR_WIDTH, TextUtils::HALFWIDTH_CHAR_WIDTH

Instance Method Summary collapse

Methods included from TextUtils

char_width, display_width, find_break_point, pad_string_to_width, truncate_to_width, wrap_preview_lines

Instance Method Details

#calculate_center(content_width, content_height) ⇒ Array<Integer>

Calculate center position for a window

Parameters:

  • content_width (Integer) —

    Window width

  • content_height (Integer) —

    Window height

Returns:

  • (Array<Integer>) —
    x, y

    position



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# File 'lib/rufio/dialog_renderer.rb', line 208

def calculate_center(content_width, content_height)
  # Get terminal size
  console = IO.console
  if console
    screen_width, screen_height = console.winsize.reverse
  else
    screen_width = 80
    screen_height = 24
  end

  # Calculate center position
  x = [(screen_width - content_width) / 2, 1].max
  y = [(screen_height - content_height) / 2, 1].max

  [x, y]
end

#calculate_dimensions(content_lines, options = {}) ⇒ Array<Integer>

Calculate appropriate dimensions for content

Parameters:

  • content_lines (Array<String>) —

    Content lines

  • options (Hash) (defaults to: {}) —

    Options

Options Hash (options):

  • :title (String, nil) —

    Window title

  • :min_width (Integer) —

    Minimum width (default: 30)

  • :max_width (Integer) —

    Maximum width (default: 80)

Returns:

  • (Array<Integer>) —
    width, height


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# File 'lib/rufio/dialog_renderer.rb', line 243

def calculate_dimensions(content_lines, options = {})
  title = options[:title]
  min_width = options[:min_width] || 30
  max_width = options[:max_width] || 80

  # Calculate required width based on content
  max_content_width = content_lines.map { |line| TextUtils.display_width(line) }.max || 0
  title_width = title ? TextUtils.display_width(title) : 0
  required_width = [max_content_width, title_width].max + 4 # +4 for borders and padding

  width = [[required_width, min_width].max, max_width].min

  # Calculate height: borders + title (if exists) + separator + content
  height = content_lines.length + 2 # +2 for top and bottom borders
  height += 2 if title # +2 for title line and separator

  [width, height]
end

#clear_area(x, y, width, height) ⇒ Object

Clear a rectangular area on the screen

Parameters:

  • x (Integer) —

    X position

  • y (Integer) —

    Y position

  • width (Integer) —

    Area width

  • height (Integer) —

    Area height



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# File 'lib/rufio/dialog_renderer.rb', line 230

def clear_area(x, y, width, height)
  height.times do |row|
    print "\e[#{y + row};#{x}H#{' ' * width}"
  end
end

#draw_floating_window(x, y, width, height, title, content_lines, options = {}) ⇒ Object

Draw a floating window with title, content, and customizable colors

Parameters:

  • x (Integer) —

    X position (column)

  • y (Integer) —

    Y position (row)

  • width (Integer) —

    Window width

  • height (Integer) —

    Window height

  • title (String, nil) —

    Window title (optional)

  • content_lines (Array<String>) —

    Content lines to display

  • options (Hash) (defaults to: {}) —

    Customization options

Options Hash (options):

  • :border_color (String) —

    Border color ANSI code

  • :title_color (String) —

    Title color ANSI code

  • :content_color (String) —

    Content color ANSI code



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# File 'lib/rufio/dialog_renderer.rb', line 156

def draw_floating_window(x, y, width, height, title, content_lines, options = {})
  # Default options
  border_color = options[:border_color] || "\e[37m"  # White
  title_color = options[:title_color] || "\e[1;33m"  # Bold yellow
  content_color = options[:content_color] || "\e[37m" # White
  reset_color = "\e[0m"

  # Draw top border
  print "\e[#{y};#{x}H#{border_color}┌#{'─' * (width - 2)}┐#{reset_color}"

  # Draw title line if title exists
  if title
    title_width = TextUtils.display_width(title)
    title_padding = (width - 2 - title_width) / 2
    padded_title = ' ' * title_padding + title
    title_line = TextUtils.pad_string_to_width(padded_title, width - 2)
    print "\e[#{y + 1};#{x}H#{border_color}│#{title_color}#{title_line}#{border_color}│#{reset_color}"

    # Draw title separator
    print "\e[#{y + 2};#{x}H#{border_color}├#{'─' * (width - 2)}┤#{reset_color}"
    content_start_y = y + 3
  else
    content_start_y = y + 1
  end

  # Draw content lines
  content_height = title ? height - 4 : height - 2
  content_lines.each_with_index do |line, index|
    break if index >= content_height

    line_y = content_start_y + index
    line_content = TextUtils.pad_string_to_width(line, width - 2)
    print "\e[#{line_y};#{x}H#{border_color}│#{content_color}#{line_content}#{border_color}│#{reset_color}"
  end

  # Fill remaining lines with empty space
  remaining_lines = content_height - content_lines.length
  remaining_lines.times do |i|
    line_y = content_start_y + content_lines.length + i
    empty_line = ' ' * (width - 2)
    print "\e[#{line_y};#{x}H#{border_color}│#{empty_line}│#{reset_color}"
  end

  # Draw bottom border
  bottom_y = y + height - 1
  print "\e[#{bottom_y};#{x}H#{border_color}└#{'─' * (width - 2)}┘#{reset_color}"
end

#draw_floating_window_to_buffer(screen, x, y, width, height, title, content_lines, options = {}) ⇒ Object

Phase 4: Screenバッファにフローティングウィンドウを描画

Parameters:

  • screen (Screen) —

    Screen buffer to draw to

  • x (Integer) —

    X position (column)

  • y (Integer) —

    Y position (row)

  • width (Integer) —

    Window width

  • height (Integer) —

    Window height

  • title (String, nil) —

    Window title (optional)

  • content_lines (Array<String>) —

    Content lines to display

  • options (Hash) (defaults to: {}) —

    Customization options

Options Hash (options):

  • :border_color (String) —

    Border color ANSI code

  • :title_color (String) —

    Title color ANSI code

  • :content_color (String) —

    Content color ANSI code



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# File 'lib/rufio/dialog_renderer.rb', line 22

def draw_floating_window_to_buffer(screen, x, y, width, height, title, content_lines, options = {})
  # Default options
  border_color = options[:border_color] || "\e[37m"  # White
  title_color = options[:title_color] || "\e[1;33m"  # Bold yellow
  content_color = options[:content_color] || "\e[37m" # White

  # Draw top border
  screen.put_string(x, y, "┌#{'─' * (width - 2)}┐", fg: border_color)

  # Draw title line if title exists
  if title
    title_width = TextUtils.display_width(title)
    title_padding = (width - 2 - title_width) / 2
    padded_title = ' ' * title_padding + title
    title_line = TextUtils.pad_string_to_width(padded_title, width - 2)

    screen.put(x, y + 1, '│', fg: border_color)
    screen.put_string(x + 1, y + 1, title_line, fg: title_color)
    screen.put(x + width - 1, y + 1, '│', fg: border_color)

    # Draw title separator
    screen.put_string(x, y + 2, "├#{'─' * (width - 2)}┤", fg: border_color)
    content_start_y = y + 3
  else
    content_start_y = y + 1
  end

  # Draw content lines
  content_height = title ? height - 4 : height - 2
  content_lines.each_with_index do |line, index|
    break if index >= content_height

    line_y = content_start_y + index
    line_content = TextUtils.pad_string_to_width(line, width - 2)

    screen.put(x, line_y, '│', fg: border_color)
    screen.put_string(x + 1, line_y, line_content, fg: content_color)
    screen.put(x + width - 1, line_y, '│', fg: border_color)
  end

  # Fill remaining lines with empty space
  remaining_lines = content_height - content_lines.length
  remaining_lines.times do |i|
    line_y = content_start_y + content_lines.length + i
    empty_line = ' ' * (width - 2)

    screen.put(x, line_y, '│', fg: border_color)
    screen.put_string(x + 1, line_y, empty_line)
    screen.put(x + width - 1, line_y, '│', fg: border_color)
  end

  # Draw bottom border
  bottom_y = y + height - 1
  screen.put_string(x, bottom_y, "└#{'─' * (width - 2)}┘", fg: border_color)
end

#draw_floating_window_to_overlay(screen, x, y, width, height, title, content_lines, options = {}) ⇒ Object

オーバーレイレイヤーにフローティングウィンドウを描画

Parameters:

  • screen (Screen) —

    Screen buffer with overlay enabled

  • x (Integer) —

    X position (column)

  • y (Integer) —

    Y position (row)

  • width (Integer) —

    Window width

  • height (Integer) —

    Window height

  • title (String, nil) —

    Window title (optional)

  • content_lines (Array<String>) —

    Content lines to display

  • options (Hash) (defaults to: {}) —

    Customization options



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# File 'lib/rufio/dialog_renderer.rb', line 87

def draw_floating_window_to_overlay(screen, x, y, width, height, title, content_lines, options = {})
  # オーバーレイが有効でない場合は有効化
  screen.enable_overlay unless screen.overlay_enabled?

  border_color = options[:border_color] || "\e[37m"
  title_color = options[:title_color] || "\e[1;33m"
  content_color = options[:content_color] || "\e[37m"

  # Draw top border
  screen.put_overlay_string(x, y, "┌#{'─' * (width - 2)}┐", fg: border_color)

  # Draw title line if title exists
  if title
    title_width = TextUtils.display_width(title)
    title_padding = (width - 2 - title_width) / 2
    padded_title = ' ' * title_padding + title
    title_line = TextUtils.pad_string_to_width(padded_title, width - 2)

    screen.put_overlay(x, y + 1, '│', fg: border_color)
    screen.put_overlay_string(x + 1, y + 1, title_line, fg: title_color)
    screen.put_overlay(x + width - 1, y + 1, '│', fg: border_color)

    # Draw title separator
    screen.put_overlay_string(x, y + 2, "├#{'─' * (width - 2)}┤", fg: border_color)
    content_start_y = y + 3
  else
    content_start_y = y + 1
  end

  # Draw content lines
  content_height = title ? height - 4 : height - 2
  content_lines.each_with_index do |line, index|
    break if index >= content_height

    line_y = content_start_y + index
    line_content = TextUtils.pad_string_to_width(line, width - 2)

    screen.put_overlay(x, line_y, '│', fg: border_color)
    screen.put_overlay_string(x + 1, line_y, line_content, fg: content_color)
    screen.put_overlay(x + width - 1, line_y, '│', fg: border_color)
  end

  # Fill remaining lines with empty space
  remaining_lines = content_height - content_lines.length
  remaining_lines.times do |i|
    line_y = content_start_y + content_lines.length + i
    empty_line = ' ' * (width - 2)

    screen.put_overlay(x, line_y, '│', fg: border_color)
    screen.put_overlay_string(x + 1, line_y, empty_line)
    screen.put_overlay(x + width - 1, line_y, '│', fg: border_color)
  end

  # Draw bottom border
  bottom_y = y + height - 1
  screen.put_overlay_string(x, bottom_y, "└#{'─' * (width - 2)}┘", fg: border_color)
end

#show_input_dialog(title, prompt, options = {}) ⇒ String?

Show a floating input dialog and get user input

Parameters:

  • title (String) —

    Dialog title

  • prompt (String) —

    Prompt message

  • options (Hash) (defaults to: {}) —

    Customization options

Options Hash (options):

  • :border_color (String) —

    Border color ANSI code

  • :title_color (String) —

    Title color ANSI code

  • :content_color (String) —

    Content color ANSI code

  • :width (Integer) —

    Dialog width (default: 50)

Returns:

  • (String, nil) —

    User input (nil if cancelled)



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# File 'lib/rufio/dialog_renderer.rb', line 271

def show_input_dialog(title, prompt, options = {})
  require 'io/console'

  width = options[:width] || 50
  height = 8 # title + separator + prompt + input line + blank + ESC message + borders

  x, y = calculate_center(width, height)

  content_lines = [
    '',
    prompt,
    '',
    '> ', # Input line with prompt indicator
    '',
    '',
    'Press ESC to cancel'
  ]

  # Draw initial dialog
  draw_floating_window(x, y, width, height, title, content_lines, options)

  # Position cursor at input line
  # y + 1 (top border) + 1 (title) + 1 (separator) + 1 (blank) + 1 (prompt) + 1 (blank) + 1 (input line) = y + 6
  input_y = y + 6
  input_x = x + 4 # Inside border with prompt '> ' (border 1 + space 1 + '> ' 2)
  print "\e[#{input_y};#{input_x}H"
  STDOUT.flush

  # Read input with escape support
  input = read_input_in_dialog(x, y, width, height, input_x, input_y, options)

  # Clear dialog
  clear_area(x, y, width, height)

  input
end