manga2pdf VS glimmer-dsl-libui

# From: https://github.com/PinGunter/manga2pdf require 'selenium-webdriver' require 'uri' require 'ruby-progressbar' require 'rmagick' require 'glimmer-dsl-libui' module Manga2PDF class MangaIMG def initialize(url, mkdir, ch_limit, savefile) @url = url @end_state = false @global_count = 0 @opts = Selenium::WebDriver::Firefox::Options.new(args: ['-headless']) @driver = Selenium::WebDriver.for(:firefox, capabilities: @opts) @driver.get @url @mkdir = mkdir @current_title = @driver.find_element(tag_name: 'h1').text @ch_limit = ch_limit @img_list = [] @savefile = check_savefile savefile end def check_savefile(savefile) if savefile[savefile.length-4, savefile.length] != ".pdf" return (savefile + ".pdf") end savefile end # method to "download" all images # it actually screenshots the html element # to bypass server restrictions def get_img images = @driver.find_elements(tag_name: 'img') progress_length = (images.length) -2 progress_bar = ProgressBar.create(:title => "Progress", :total => progress_length, :length => 80) dir_path = "." dir_path = "#{@current_title}" if @mkdir if not Dir.exists? dir_path Dir.mkdir dir_path end index = 0 images.each do |img| if index > 0 and index < images.length - 1 scrn_dir = "#{@global_count}_#{index}.png" scrn_dir = "#{dir_path}/#{index}.png" if @mkdir img.save_screenshot scrn_dir @img_list << scrn_dir progress_bar.increment end index += 1 end end # method to navigate to the next page def next_page begin next_btn = @driver.find_element(link_text: 'NEXT CHAPTER') rescue @end_state = true end if not @end_state next_btn.click end @current_title = @driver.find_element(tag_name: 'h1').text #update title end def merge_to_pdf puts "Starting merge" puts "output file: #{@savefile}" final_img_list = Magick::ImageList.new(*@img_list) final_img_list.write(@savefile) puts "Finished merging!" end # method to download all images from all volumes def get_img_all while not @end_state puts "Currently downloading: #{@current_title}" get_img next_page @global_count += 1 if not @ch_limit.nil? and @global_count == @ch_limit @end_state = true end end puts "Finished downloading!" end end class MangaGUI include Glimmer def initialize @url, @mkdir, @chlimit, @chlimit_toggle, @savefile = nil, nil, 1, nil, nil @inner_thread = nil @running = false end def launch window('Manga2PDF - GUI', 600, 200) { on_closing do @inner_thread.exit end margined true vertical_box { horizontal_box { group('Manga2PDF') { vertical_box { group('Enter the URL:') @entry = entry { stretchy false on_changed do @url = @entry.text end } group('Savefile name:') @entry2 = entry { stretchy false on_changed do @savefile = @entry2.text end } @checkbox = checkbox('Have separate folders for each chapter?') { stretchy false on_toggled do @mkdir = @checkbox.checked? end } group('Max number of chapters') @checkbox2 = checkbox('Download only a number of chapters') { stretchy false on_toggled do @chlimit_toggle = @checkbox2.checked? end } @spinbox = spinbox(1,9999) { stretchy false value 1 on_changed do @chlimit = @spinbox.value end } @button = button('Download') { stretchy false on_clicked do if not @running @running = true @inner_thread = Thread.new do Glimmer::LibUI.queue_main do @label.text = "Initializing WebScraper" @progressbar.value = 5 end @chlimit = nil if not @chlimit_toggle @manga = Manga2PDF::MangaIMG.new(@url,@mkdir,@chlimit,@savefile) Glimmer::LibUI.queue_main do @label.text = "Moving to #{@url}" @progressbar.value = 15 @label.text = "Downloading images" end @manga.get_img_all Glimmer::LibUI.queue_main do @label.text = "Finished downloading images" @progressbar.value = 75 @label.text = "Merging images" end @manga.merge_to_pdf Glimmer::LibUI.queue_main do @progressbar.value = 100 @label.text = "Finished! You can close the window now" end @running = false end end end } @progressbar = progress_bar { stretchy false } @label = label("Waiting") { stretchy false } } } } } }.show @inner_thread.join end end end Manga2PDF::MangaGUI.new.launch

glimmer-dsl-libui is a more actively maintained alternative

https://github.com/AndyObtiva/glimmer-dsl-libui

Another GitHub Pull Request for Rubio-Radio (open-source Internet radio app built with Ruby) got accepted and merged, which focused on displaying the currently playing song/program, loading all available radio stations (instead of a pre-defined limit), and enhanced full-text-search support including column-specific queries. The changes have been released in rubio-radio gem version 0.0.6. In fact, the enhanced full-text-search support is included in the latest version of Glimmer DSL for LibUI (Ruby Desktop Development GUI Library used to build Rubio-Radio) as part of the refined_table custom control for use in any projects, so software engineers get that feature for free now.

Recently, I blogged about how I contributed Pagination/Filtering support to Rubio-Radio, an Internet radio application built with Ruby and Glimmer DSL for LibUI.

I am particularly impressed by the fact that the developers of those apps fully went the distance by walking the walk, not just talking the talk, especially given that the developers of the first app (RubyCrumbler) were brand new to Glimmer DSL for LibUI and had to exercise great problem solving skills to finish their app on time for their needs.

# From: https://github.com/AndyObtiva/glimmer-dsl-libui#shape-coloring require 'glimmer-dsl-libui' class ShapeColoring include Glimmer::LibUI::Application COLOR_SELECTION = Glimmer::LibUI.interpret_color(:red) before_body { @shapes = [] } body { window('Shape Coloring', 200, 200) { margined false grid { label("Click a shape to select and\nchange color via color button") { left 0 top 0 hexpand true halign :center vexpand false } color_button { |cb| left 0 top 1 hexpand true vexpand false on_changed do @selected_shape&.fill = cb.color end } area { left 0 top 2 hexpand true vexpand true rectangle(0, 0, 600, 400) { # background shape fill :white } @shapes << colorable(:rectangle, 20, 20, 40, 20) { |shape| fill :lime } @shapes << colorable(:square, 80, 20, 20) { |shape| fill :blue } @shapes << colorable(:circle, 75, 70, 20, 20) { |shape| fill :green } @shapes << colorable(:arc, 120, 70, 40, 0, 145) { |shape| fill :orange } @shapes << colorable(:polygon, 120, 10, 120, 50, 150, 10, 150, 50) { fill :cyan } @shapes << colorable(:polybezier, 20, 40, 30, 100, 50, 80, 80, 110, 40, 120, 20, 120, 30, 91) { fill :pink } } } } } def colorable(shape_symbol, *args, &content) send(shape_symbol, *args) do |shape| on_mouse_up do |area_mouse_event| old_stroke = Glimmer::LibUI.interpret_color(shape.stroke).slice(:r, :g, :b) @shapes.each {|sh| sh.stroke = nil} @selected_shape = nil unless old_stroke == COLOR_SELECTION shape.stroke = COLOR_SELECTION.merge(thickness: 2) @selected_shape = shape end end content.call(shape) end end end ShapeColoring.launch

# From: https://github.com/AndyObtiva/glimmer-dsl-libui#class-based-custom-controls require 'glimmer-dsl-libui' require 'facets' Address = Struct.new(:street, :p_o_box, :city, :state, :zip_code) class FormField include Glimmer::LibUI::CustomControl options :model, :attribute body { entry { |e| label attribute.to_s.underscore.split('_').map(&:capitalize).join(' ') text <=> [model, attribute] } } end class AddressForm include Glimmer::LibUI::CustomControl options :address body { form { form_field(model: address, attribute: :street) form_field(model: address, attribute: :p_o_box) form_field(model: address, attribute: :city) form_field(model: address, attribute: :state) form_field(model: address, attribute: :zip_code) } } end class LabelPair include Glimmer::LibUI::CustomControl options :model, :attribute, :value body { horizontal_box { label(attribute.to_s.underscore.split('_').map(&:capitalize).join(' ')) label(value.to_s) { text <= [model, attribute] } } } end class AddressView include Glimmer::LibUI::CustomControl options :address body { vertical_box { address.each_pair do |attribute, value| label_pair(model: address, attribute: attribute, value: value) end } } end class ClassBasedCustomControls include Glimmer::LibUI::Application # alias: Glimmer::LibUI::CustomWindow before_body do @address1 = Address.new('123 Main St', '23923', 'Denver', 'Colorado', '80014') @address2 = Address.new('2038 Park Ave', '83272', 'Boston', 'Massachusetts', '02101') end body { window('Class-Based Custom Keyword') { margined true horizontal_box { vertical_box { label('Address 1') { stretchy false } address_form(address: @address1) horizontal_separator { stretchy false } label('Address 1 (Saved)') { stretchy false } address_view(address: @address1) } vertical_separator { stretchy false } vertical_box { label('Address 2') { stretchy false } address_form(address: @address2) horizontal_separator { stretchy false } label('Address 2 (Saved)') { stretchy false } address_view(address: @address2) } } } } end ClassBasedCustomControls.launch

Glimmer DSL for LibUI (Prerequisite-Free Ruby Desktop Development GUI Library): this gem just won a 2022 Fukuoka Ruby Special Award after getting judged directly by Matz (creator of Ruby) and the Fukuoka Ruby Award Competition Judges! How is that for a Year of The Ruby Desktop accomplishment!!?!

Another reason why this library was created was to address the need for supporting automated declarative drag and drop features in Glimmer DSL for LibUI coming soon (right now, it supports manually implementing drag and drop with area listeners out of the box).