Multi-window support (experimental release), BringToFront method
This commit is contained in:
MikeTheWatchGuy
parent
70f6002ab9
commit
f3776ff5d4
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@ -178,6 +178,9 @@ ThisRow = 555666777 # magic number
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# DEFAULT_WINDOW_ICON = ''
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MESSAGE_BOX_LINE_WIDTH = 60
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# Key representing a Read timeout
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TIMEOUT_KEY = '__timeout__'
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# a shameful global variable. This represents the top-level window information. Needed because opening a second window is different than opening the first.
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class MyWindows():
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@ -380,7 +383,8 @@ class Element():
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else:
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self.ParentForm.LastButtonClicked = self.DisplayText
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self.ParentForm.FormRemainedOpen = True
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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if self.ParentForm.CurrentlyRunningMainloop:
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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def ReturnKeyHandler(self, event):
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MyForm = self.ParentForm
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@ -397,7 +401,8 @@ class Element():
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else:
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self.ParentForm.LastButtonClicked = ''
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self.ParentForm.FormRemainedOpen = True
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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if self.ParentForm.CurrentlyRunningMainloop:
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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def ComboboxSelectHandler(self, event):
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MyForm = self.ParentForm
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@ -408,7 +413,8 @@ class Element():
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else:
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self.ParentForm.LastButtonClicked = ''
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self.ParentForm.FormRemainedOpen = True
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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if self.ParentForm.CurrentlyRunningMainloop:
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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def CheckboxHandler(self):
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MyForm = self.ParentForm
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@ -417,7 +423,8 @@ class Element():
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else:
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self.ParentForm.LastButtonClicked = ''
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self.ParentForm.FormRemainedOpen = True
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self.ParentForm.TKroot.quit()
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if self.ParentForm.CurrentlyRunningMainloop:
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self.ParentForm.TKroot.quit()
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def TabGroupSelectHandler(self, event):
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MyForm = self.ParentForm
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@ -426,7 +433,8 @@ class Element():
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else:
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self.ParentForm.LastButtonClicked = ''
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self.ParentForm.FormRemainedOpen = True
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self.ParentForm.TKroot.quit()
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if self.ParentForm.CurrentlyRunningMainloop:
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self.ParentForm.TKroot.quit()
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def __del__(self):
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try:
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@ -883,7 +891,8 @@ class Spin(Element):
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else:
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self.ParentForm.LastButtonClicked = ''
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self.ParentForm.FormRemainedOpen = True
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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if self.ParentForm.CurrentlyRunningMainloop:
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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def __del__(self):
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try:
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@ -1225,7 +1234,8 @@ class Button(Element):
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self.ParentForm.LastButtonClicked = self.Key
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else:
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self.ParentForm.LastButtonClicked = self.ButtonText
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self.ParentForm.TKroot.quit() # kick out of loop if read was called
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if self.ParentForm.CurrentlyRunningMainloop:
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self.ParentForm.TKroot.quit() # kick out of loop if read was called
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# ------- Button Callback ------- #
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def ButtonCallBack(self):
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@ -1300,7 +1310,8 @@ class Button(Element):
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self.ParentForm.LastButtonClicked = self.ButtonText
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self.ParentForm.FormRemainedOpen = False
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self.ParentForm._Close()
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self.ParentForm.TKroot.quit()
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if self.ParentForm.CurrentlyRunningMainloop:
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self.ParentForm.TKroot.quit()
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if self.ParentForm.NonBlocking:
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self.ParentForm.TKroot.destroy()
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_my_windows.Decrement()
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@ -1312,7 +1323,8 @@ class Button(Element):
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else:
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self.ParentForm.LastButtonClicked = self.ButtonText
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self.ParentForm.FormRemainedOpen = True
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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if self.ParentForm.CurrentlyRunningMainloop: # if this window is running the mainloop, kick out
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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elif self.BType == BUTTON_TYPE_CLOSES_WIN_ONLY: # special kind of button that does not exit main loop
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self.ParentForm._Close()
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if self.ParentForm.NonBlocking:
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@ -1329,7 +1341,8 @@ class Button(Element):
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if should_submit_window:
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self.ParentForm.LastButtonClicked = target_element.Key
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self.ParentForm.FormRemainedOpen = True
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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if self.ParentForm.CurrentlyRunningMainloop:
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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return
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@ -1984,7 +1997,8 @@ class Slider(Element):
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else:
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self.ParentForm.LastButtonClicked = ''
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self.ParentForm.FormRemainedOpen = True
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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if self.ParentForm.CurrentlyRunningMainloop:
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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def __del__(self):
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super().__del__()
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@ -2367,7 +2381,8 @@ class Menu(Element):
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# print('IN MENU ITEM CALLBACK', item_chosen)
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self.ParentForm.LastButtonClicked = item_chosen
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self.ParentForm.FormRemainedOpen = True
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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if self.ParentForm.CurrentlyRunningMainloop:
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self.ParentForm.TKroot.quit() # kick the users out of the mainloop
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def __del__(self):
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super().__del__()
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@ -2622,6 +2637,7 @@ class Window:
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self.NonBlocking = False
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self.TKroot = None
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self.TKrootDestroyed = False
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self.CurrentlyRunningMainloop = False
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self.FormRemainedOpen = False
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self.TKAfterID = None
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self.ProgressBarColor = progress_bar_color
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@ -2753,20 +2769,23 @@ class Window:
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def _TimeoutAlarmCallback(self):
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# first, get the results table built
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# modify the Results table in the parent FlexForm object
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# print('TIMEOUT CALLBACK')
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if self.TimerCancelled:
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# print('** timer was cancelled **')
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return
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self.LastButtonClicked = self.TimeoutKey
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self.FormRemainedOpen = True
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self.TKroot.quit() # kick the users out of the mainloop
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def Read(self, timeout=None, timeout_key='_timeout_'):
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if timeout == 0:
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def Read(self, timeout=None, timeout_key=TIMEOUT_KEY):
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if timeout == 0: # timeout of zero runs the old readnonblocking
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event, values = self.ReadNonBlocking()
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if event is None:
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event = timeout_key
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if values is None:
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event = None
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return event, values
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return event, values # make event None if values was None and return
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# Read with a timeout
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self.Timeout = timeout
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self.TimeoutKey = timeout_key
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self.NonBlocking = False
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@ -2775,27 +2794,48 @@ class Window:
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if not self.Shown:
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self.Show()
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else:
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# if already have a button waiting, the return previously built results
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if self.LastButtonClicked is not None and not self.LastButtonClickedWasRealtime:
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# print(f'*** Found previous clicked saved {self.LastButtonClicked}')
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results = BuildResults(self, False, self)
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self.LastButtonClicked = None
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return results
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InitializeResults(self)
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# if the last button clicked was realtime, emulate a read non-blocking
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# the idea is to quickly return realtime buttons without any blocks until released
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if self.LastButtonClickedWasRealtime:
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# print(f'RTime down {self.LastButtonClicked}' )
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try:
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rc = self.TKroot.update()
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except:
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self.TKrootDestroyed = True
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_my_windows.Decrement()
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print('ROOT Destroyed')
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results = BuildResults(self, False, self)
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if results[0] != None and results[0] != timeout_key:
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return results
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else:
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pass
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# else:
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# print("** REALTIME PROBLEM FOUND **", results)
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# normal read blocking code....
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if timeout != None:
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self.TimerCancelled = False
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self.TKAfterID = self.TKroot.after(timeout, self._TimeoutAlarmCallback)
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self.CurrentlyRunningMainloop = True
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# print(f'In main {self.Title}')
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self.TKroot.mainloop()
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# print('Out main')
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self.CurrentlyRunningMainloop = False
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# if self.LastButtonClicked != TIMEOUT_KEY:
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# print(f'Window {self.Title} Last button clicked = {self.LastButtonClicked}')
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try:
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self.TKroot.after_cancel(self.TKAfterID)
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except:
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pass
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# print('** tkafter cancel failed **')
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self.TimerCancelled = True
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if self.RootNeedsDestroying:
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self.TKroot.destroy()
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@ -2803,8 +2843,12 @@ class Window:
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# if form was closed with X
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if self.LastButtonClicked is None and self.LastKeyboardEvent is None and self.ReturnValues[0] is None:
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_my_windows.Decrement()
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# Determine return values
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if self.LastKeyboardEvent is not None or self.LastButtonClicked is not None:
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return BuildResults(self, False, self)
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results = BuildResults(self, False, self)
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if not self.LastButtonClickedWasRealtime:
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self.LastButtonClicked = None
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return results
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else:
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return self.ReturnValues
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@ -2820,6 +2864,7 @@ class Window:
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except:
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self.TKrootDestroyed = True
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_my_windows.Decrement()
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# print("read failed")
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# return None, None
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return BuildResults(self, False, self)
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@ -2928,7 +2973,8 @@ class Window:
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self.LastKeyboardEvent = str(event.keysym) + ':' + str(event.keycode)
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if not self.NonBlocking:
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BuildResults(self, False, self)
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self.TKroot.quit()
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if self.CurrentlyRunningMainloop: # quit if this is the current mainloop, otherwise don't quit!
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self.TKroot.quit()
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def _MouseWheelCallback(self, event):
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self.LastButtonClicked = None
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@ -2936,7 +2982,8 @@ class Window:
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self.LastKeyboardEvent = 'MouseWheel:Down' if event.delta < 0 else 'MouseWheel:Up'
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if not self.NonBlocking:
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BuildResults(self, False, self)
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self.TKroot.quit()
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if self.CurrentlyRunningMainloop: # quit if this is the current mainloop, otherwise don't quit!
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self.TKroot.quit()
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def _Close(self):
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try:
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@ -3004,6 +3051,12 @@ class Window:
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self._AlphaChannel = alpha
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self.TKroot.attributes('-alpha', alpha)
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def BringToFront(self):
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try:
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self.TKroot.lift()
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except:
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pass
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def __enter__(self):
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return self
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@ -4531,7 +4584,9 @@ def StartupTK(my_flex_form):
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# my_flex_form.TKroot.protocol("WM_DELETE_WINDOW", my_flex_form.OnClosingCallback())
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else: # it's a blocking form
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# print('..... CALLING MainLoop')
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my_flex_form.CurrentlyRunningMainloop = True
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my_flex_form.TKroot.mainloop()
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my_flex_form.CurrentlyRunningMainloop = False
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my_flex_form.TimerCancelled = True
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# print('..... BACK from MainLoop')
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if not my_flex_form.FormRemainedOpen:
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