https://robark.gitlab.io/timeouts/index.htmlChapter 5 TimeoutsHugoen-usWed, 16 Dec 2020 22:34:57 +0000https://robark.gitlab.io/timeouts/flashimage/index.htmlMon, 14 Dec 2020 20:39:11 +0000https://robark.gitlab.io/timeouts/flashimage/index.htmlLesson 15: Image Flasher using timeouts from fltk import * class imgflash(Fl_Window): def __init__(self, w, h, l): Fl_Window.__init__(self, w,h,l) self.but = Fl_Button(100,90, 100, 110) self.stopbut= Fl_Button(100,250,70,30,"Stop") self.end() self.but.callback(self.but_cb) self.stopbut.callback(self.stopbut_cb) self.pic=(Fl_JPEG_Image("spaceman.jpeg")).copy(self.but.w(),self.but.h()) Fl.add_timeout(1.0, self.tofunc) def tofunc(self): self.but.do_callback() Fl.repeat_timeout(1.0, self.tofunc) def stopbut_cb(self, wid): Fl.remove_timeout(self.tofunc) def but_cb(self,wid): if self.but.image()!=None: print("remove image") self.but.image(None) self.but.redraw() else: print("put image") self.but.image(self.pic) self.but.redraw() app= imgflash(400, 300, 'Timeout example 1') app.show() Fl.run() Non OOP code:https://robark.gitlab.io/timeouts/timers/index.htmlTue, 15 Dec 2020 22:53:27 +0000https://robark.gitlab.io/timeouts/timers/index.htmlLesson 16: Timers Removing matching timeouts from fltk import * def alarm_to(num): brow.add(str(num)) def rmatch_cb(wid): print("Remove matching timeouts: function name and user data") print(inp.value()) Fl.remove_timeout(alarm_to, int(inp.value()) ) def rall_cb(wid): print("Remove all timeouts") Fl.remove_timeout(alarm_to) w=Fl_Window(400,400) w.begin() rall=Fl_Button(120,20,100,30,"Remove all") rmatch=Fl_Button(220,120,150,30,"Remove matching") inp = Fl_Input(120,120,100,30,"User data") brow = Fl_Browser(120,170,100,200) w.end() L = [0,1,1,2,3,3,4,4,5,5] rall.callback(rall_cb) rmatch.callback(rmatch_cb) for x in range(len(L)): print(f'time: {1.0+(2*x)} function: alarm_to user_data: {L[x]}') Fl.add_timeout(1.0+(2*x), alarm_to, L[x]) #1,3,5,7,9,11 secs # Note: L[x] user_data must be immutable w.show() Fl.run() Dial timerhttps://robark.gitlab.io/timeouts/sequences/index.htmlWed, 16 Dec 2020 22:34:57 +0000https://robark.gitlab.io/timeouts/sequences/index.htmlLesson 17: Sequencing timeouts from fltk import * def boxflash(x): if B[x].color()==FL_GREEN: B[x].color(FL_RED) B[x].redraw() else: B[x].color(FL_GREEN) B[x].redraw() return Fl.repeat_timeout(1.0,boxflash, x) def flashall(wid): for x in range(len(B)): Fl.add_timeout(2*x, boxflash, x) win=Fl_Window(300,200,'Sequence Flasher') B=[] for x in range(3): b=Fl_Box(x*100,0,100,100) b.box(FL_UP_BOX) b.color(FL_GREEN) B.append(b) flashb=Fl_Button(0,100,300,100,'Start Flash') flashb.callback(flashall) win.end() win.show() Fl.run() OOP version