Glimmer Mandelbrot Fractal's Got Progress & Menus

The newly released Glimmer DSL for SWT v4.18.4.10 adds a progress bar to the Mandelbrot Fractal sample (blogged about over here) as well as a Cores Menu that enables switching the number of used CPU cores to allow for more responsiveness.

Otherwise, a new Hello sample was added too: Hello, Progress Bar!

Glimmer GUI DSL Code for Hello, Progress Bar! is below:

	# From: https://github.com/AndyObtiva/glimmer-dsl-swt/blob/master/docs/reference/GLIMMER_SAMPLES.md#hello-progress-bar
	class HelloProgressBar
	include Glimmer::UI::CustomWindow
	class ProgressModel
	attr_accessor :minimum, :maximum, :selection, :delay
	end
	before_body {
	@progress_model = ProgressModel.new
	@progress_model.minimum = 0
	@progress_model.maximum = 100
	@progress_model.selection = 0
	@progress_model.delay = 0.01
	}
	body {
	shell {
	grid_layout(4, true)
	text 'Hello, Progress Bar!'
	progress_bar(:indeterminate) {
	layout_data(:fill, :center, true, false) {
	horizontal_span 4
	}
	}
	label {
	text 'Minimum'
	}
	label {
	text 'Maximum'
	}
	label {
	text 'Selection'
	}
	label {
	text 'Delay in Seconds'
	}
	spinner {
	selection bind(@progress_model, :minimum)
	}
	spinner {
	selection bind(@progress_model, :maximum)
	}
	spinner {
	selection bind(@progress_model, :selection)
	}
	spinner {
	digits 2
	minimum 1
	maximum 200
	selection bind(@progress_model, :delay, on_read: ->(v) {v.to_f*100.0}, on_write: ->(v) {v.to_f/100.0})
	}
	progress_bar {
	layout_data(:fill, :center, true, false) {
	horizontal_span 4
	}
	minimum bind(@progress_model, :minimum)
	maximum bind(@progress_model, :maximum)
	selection bind(@progress_model, :selection)
	}
	progress_bar(:vertical) {
	layout_data(:fill, :center, true, false) {
	horizontal_span 4
	}
	minimum bind(@progress_model, :minimum)
	maximum bind(@progress_model, :maximum)
	selection bind(@progress_model, :selection)
	}
	button {
	layout_data(:fill, :center, true, false) {
	horizontal_span 4
	}
	text "Start"
	on_widget_selected {
	# if a previous thread is running, then kill first
	# (killing is not dangerous since it is only a thread about updating progress)
	@current_thread&.kill
	@current_thread = Thread.new {
	sync_exec { @progress_model.selection = @progress_model.minimum }
	(@progress_model.minimum..@progress_model.maximum).to_a.each do |n|
	sync_exec {
	@progress_model.selection = n
	}
	sleep(@progress_model.delay)
	end
	}
	}
	}
	}
	}
	end
	HelloProgressBar.launch

view raw glimmer-hello-progress-bar.rb hosted with ❤ by GitHub

Happy Glimmering!