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[ruby-gnome2-cvs] ruby-gnome2/ruby-gnome2@af6e5fd [master] Add fishbowl demo
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From: cedlemo <nu...@co...> - 2017-09-04 00:37:09
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cedlemo 2017-09-04 02:09:32 +0900 (Mon, 04 Sep 2017) New Revision: af6e5fda6fb6b3f9a298e23b3fa90d7bc04fbced https://github.com/ruby-gnome2/ruby-gnome2/commit/af6e5fda6fb6b3f9a298e23b3fa90d7bc04fbced Merged 23de9e3: Merge pull request #1099 from cedlemo/gtk3_sample_gtk_demo_fishbowl_rb Message: Add fishbowl demo Added files: gtk3/sample/gtk-demo/fishbowl.rb Added: gtk3/sample/gtk-demo/fishbowl.rb (+194 -0) 100644 =================================================================== --- /dev/null +++ gtk3/sample/gtk-demo/fishbowl.rb 2017-09-04 02:09:32 +0900 (4efe22bda) @@ -0,0 +1,194 @@ +# Copyright (c) 2017 Ruby-GNOME2 Project Team +# This program is licenced under the same licence as Ruby-GNOME2. +# +=begin += Benchmark/Fishbowl + + This demo models the fishbowl demos seen on the web in a GTK way. + It's also a neat little tool to see how fast your computer (or + your GTK version) is. +=end + +STATS_UPDATE_TIME = 1_000_000 # G_USEC_PER_SEC +N_STATS = 5 + +class Stats + attr_accessor :last_stats, :last_frame, :last_suggestion, :frame_counter_max, + :stats_index, :frame_counter, :item_counter + + def initialize(widget) + @widget = widget + @stats_index = 0 + @frame_counter_max = 0 + @last_frame = @widget.frame_clock.frame_time + @last_stats = @last_frame + @frame_counter = Array.new(N_STATS, 0) + @item_counter = Array.new(N_STATS, 0) + @last_suggestion = 0 + end +end + +class Fish < Gtk::Image + attr_accessor :x, :y, :x_speed, :y_speed + def initialize + super(:icon_name => get_random_icon_name, :size => :dialog) + @x = 10 + @y = 10 + @x_speed = rand(1..200) + @y_speed = rand(1..200) + end + + private + + def get_random_icon_name + theme = Gtk::IconTheme.default + icon_list = theme.icons + icons = icon_list.select do |e| ! e.include?("symbolic") end + icons[rand (icons.size)] + end +end + +class FishbowlDemo + def initialize(main_window) + builder = Gtk::Builder.new(:resource => "/fishbowl/fishbowl.ui") + @window = builder["window"] + @bowl = builder["bowl"] + @info_label = builder["info_label"] + @changes_prevent = builder["changes_prevent"] + @changes_prevent.image = Gtk::Image.new(:icon_name => "changes-prevent") + @changes_allow = builder["changes_allow"] + @changes_allow.image = Gtk::Image.new(:icon_name => "changes-allow") + @window.screen = main_window.screen + @window.realize + @bowl.add_tick_callback do |widget, frame_clock| + move_fish(widget, frame_clock) + end + end + + def run + if !@window.visible? + @window.show_all + else + @window.destroy + end + @window + end + + private + + def move_fish(widget, frame_clock) + elapsed = 0 + suggested_change = 0 + elapsed, suggested_change = do_stats(!@changes_allow.active?) + @bowl.each do |widget| + move_one_fish(widget, elapsed) + end + + if suggested_change > 0 + add_fish(suggested_change) + elsif suggested_change < 0 + remove_fish(- suggested_change) + end + + GLib::Source::CONTINUE + end + + def do_stats(suggested_change) + suggested_change = 0 + @stats = Stats.new(@bowl) unless @stats + frame_time = @bowl.frame_clock.frame_time + elapsed = frame_time - @stats.last_frame + n_frames = 0 + + if @stats.last_stats + STATS_UPDATE_TIME < frame_time + @stats.frame_counter.each do |f| + n_frames += f + end + + index = @stats.stats_index + new_label = sprintf("%u icons - %.1f fps", @stats.item_counter[index], + STATS_UPDATE_TIME * n_frames / (N_STATS * STATS_UPDATE_TIME)) + @info_label.label = new_label + + if @stats.frame_counter[index] >= 19 * @stats.frame_counter_max / 20 + if @stats.last_suggestion > 0 + @stats.last_suggestion *= 2 + else + @stats.last_suggestion = 1 + end + else + if @stats.last_suggestion < 0 + @stats.last_suggestion -= 1 + else + @stats.last_suggestion = -1 + end + @stats.last_suggestion = [@stats.last_suggestion, + 1 - @stats.item_counter[index]].max + end + + @stats.stats_index = (@stats.stats_index + 1) % N_STATS + @stats.frame_counter[@stats.stats_index] = 0 + @stats.item_counter[@stats.stats_index] = @stats.item_counter[(@stats.stats_index + N_STATS - 1) % N_STATS] + @stats.last_stats = frame_time + + if suggested_change + suggested_change = @stats.last_suggestion + else + @stats.last_suggestion = 0 + end + else + suggested_change = 0 if suggested_change + end + + @stats.last_frame = frame_time + @stats.frame_counter[@stats.stats_index] += 1 + @stats.frame_counter_max = [@stats.frame_counter_max, + @stats.frame_counter[@stats.stats_index]].max + [elapsed, suggested_change] + end + + def add_fish(n_fish) + (1..n_fish).each do + new_fish = Fish.new + new_fish.show + @bowl.put(new_fish, 10, 10) + stats_update(n_fish) + end + + end + + def stats_update(n_items) + index = @stats.stats_index + @stats.item_counter[index] += n_items + end + + def remove_fish(n_fish) + (0..(n_fish - 1)).each do + @bowl.children.shift + end + stats_update(- n_fish) + end + + def move_one_fish(fish, elapsed) + fish.x += (fish.x_speed * elapsed / STATS_UPDATE_TIME) + fish.y += (fish.y_speed * elapsed / STATS_UPDATE_TIME) + + if fish.x <= 0 + fish.x = 0 + fish.x_speed = - rand(1..200) * (fish.x_speed > 0 ? 1 : - 1) + elsif fish.x > fish.parent.allocated_width - fish.allocated_width + fish.x = fish.parent.allocated_width - fish.allocated_width + fish.x_speed = - rand(1..200) * (fish.x_speed > 0 ? 1 : - 1) + end + + if fish.y <= 0 + fish.y = 0 + fish.y_speed = - rand(1..200) * (fish.y_speed > 0 ? 1 : - 1) + elsif fish.y > fish.parent.allocated_height - fish.allocated_height + fish.y = fish.parent.allocated_height - fish.allocated_height + fish.y_speed = - rand(1..200) * (fish.y_speed > 0 ? 1 : - 1) + end + + fish.parent.move(fish, fish.x, fish.y) + end +end |
