diff options
Diffstat (limited to 'ext/tk/sample/tksleep_sample.rb')
-rw-r--r-- | ext/tk/sample/tksleep_sample.rb | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/ext/tk/sample/tksleep_sample.rb b/ext/tk/sample/tksleep_sample.rb new file mode 100644 index 0000000000..23f6eca54e --- /dev/null +++ b/ext/tk/sample/tksleep_sample.rb @@ -0,0 +1,29 @@ +require 'tk' + +v = TkVariable.new(0) +l = TkLabel.new(:textvariable=>v).pack(:pady=>[1, 10]) + +a = TkButton.new(:text=>"button A :: proc{p ['AAA', v.value]}").pack(:fill=>:x, :pady=>[1, 15], :padx=>15) +a.command{p ['AAA', v.value]} + +TkLabel.new(:text=>'Callback of the button B returns LIFO order').pack +b = TkButton.new(:text=>"button B :: proc{n = v.value; p ['B:start', n]; Tk.sleep(10000); p ['B:end', n]}").pack(:fill=>:x, :pady=>[1, 15], :padx=>15) +b.command{n = v.value; p ['B:start', n]; Tk.sleep(10000); p ['B:end', n]} + +TkLabel.new(:text=>'Callback of the button C returns FIFO order').pack +c = TkButton.new(:text=>"button C :: proc{n = v.value; Thread.new{p ['C:start', n]; Tk.sleep(10000); p ['C:end', n]}}").pack(:fill=>:x, :pady=>[1, 15], :padx=>15) +c.command{n = v.value; Thread.new{p ['C:start', n]; Tk.sleep(10000); p ['C:end', n]}} + +TkLabel.new(:text=>'Callback of the button D blocks eventloop (no respond to event)').pack +d = TkButton.new(:text=>"button D :: proc{n = v.value; p ['D:start', n]; sleep(10); p ['D:end', n]}").pack(:fill=>:x, :pady=>[1,15], :padx=>15) +d.command{n = v.value; p ['D:start', n]; sleep(10); p ['D:end', n]} + +TkLabel.new(:text=>'Callback of the button E is another way to avoid eventloop blocking').pack +e = TkButton.new(:text=>"button E :: proc{n = v.value; Thread.new{p ['D:start', n]; sleep(10); p ['D:end', n]}}").pack(:fill=>:x, :pady=>[1,15], :padx=>15) +e.command{n = v.value; Thread.new{p ['D:start', n]; sleep(10); p ['D:end', n]}} + +TkButton.new(:text=>'QUIT', :command=>proc{exit}).pack + +TkTimer.new(500, -1){v.numeric += 1}.start + +Tk.mainloop |