After wx.ProgressDialog in PD_APP_MODAL mode is terminated, the top window does not regain control

[gswifort]

I have a problem with wx.PD_APP_MODAL, when I create a wx.ProgressDialog in PD_APP_MODAL mode and with parent set to frame, after the task is finished the parent frame regains control but the main window does not (it remains in modal mode). When I set frame to None it works in this example. In other code it sometimes does not work for me with parent=None (the same code sometimes works sometimes does not), but it is complicated code, for now I cannot reproduce it on a simple sample.

import wx
from pyrx import Ap, command


@command
def doit():
    frame = wx.Frame(None, title="Demo")
    btn = wx.Button(frame, label="Click me")

    def task():
        with wx.ProgressDialog(
            "Demo",
            "Running...",
            maximum=100,
            parent=frame,
            # parent=None,
            style=wx.PD_CAN_ABORT | wx.PD_AUTO_HIDE | wx.PD_APP_MODAL,
        ) as progress:
            for i in range(101):
                progress.Update(i, f"Progress: {i}%")
                wx.MilliSleep(10)

    btn.Bind(wx.EVT_BUTTON, lambda event: task())
    frame.Show()

[CEXT-Dan]

Wondering why you’re using a wxFrame instead of a wxDialog

import wx
from pyrx import Ap, command

@command
def doit():
    dlg = wx.Dialog(None, title="Demo")
    btn = wx.Button(dlg, label="Click me")

    def task():
        with wx.ProgressDialog(
            "Demo",
            "Running...",
            maximum=100,
            parent=dlg,
            # parent=None,
            style=wx.PD_CAN_ABORT | wx.PD_AUTO_HIDE | wx.PD_APP_MODAL,
        ) as progress:
            for i in range(101):
                progress.Update(i, f"Progress: {i}%")
                wx.MilliSleep(10)

    btn.Bind(wx.EVT_BUTTON, lambda event: task())
    dlg.ShowModal()

[gswifort]

Because I need a window in non-modal mode

[gswifort]

2. When you click "Cancel" with parent=frame, the progress window does not close (works for frame=None)

import wx
from pyrx import command


@command
def doit():
    frame = wx.Frame(None, title="Demo")
    btn = wx.Button(frame, label="Click me")

    def task():
        with wx.ProgressDialog(
            "Demo",
            "Running...",
            maximum=100,
            parent=frame,
            # parent=None,
            style=wx.PD_CAN_ABORT | wx.PD_AUTO_HIDE | wx.PD_APP_MODAL,
        ) as progress:
            for i in range(101):
                keep_going, _ = progress.Update(i, f"Progress: {i}%")
                if not keep_going:
                    return
                wx.MilliSleep(10)

    btn.Bind(wx.EVT_BUTTON, lambda event: task())
    frame.Show()

[gswifort]

I would like the application to be unavailable during the execution of the task, but I can't run the command in modal mode because it wants to open documents in the application context. Only ProgressDialog seems to provide this.

[CEXT-Dan]

it seems wx.PD_APP_MODAL tries to also lock CAD's main frame

I also got this

[gswifort]

it seems wx.PD_APP_MODAL tries to also lock CAD's main frame

and is that bad?

[CEXT-Dan]

wx.YieldIfNeeded() seems to help, I also fixed the assert mentioned above in the latest refresh build, though I need to test this more

try

import wx
from pyrx import command, Ed, Ap


class MyFrame(wx.Frame):
    def __init__(self, parent, title):
        super().__init__(parent, title=title)
        self.panel = wx.Panel(self)
        self.button = wx.Button(self.panel, label="Start Long Task")
        self.button.Bind(wx.EVT_BUTTON, self.on_start_task)
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.button, 0, wx.ALL | wx.CENTER, 5)
        self.panel.SetSizer(sizer)
        self.CenterOnParent()

    def on_start_task(self, event: wx.Event):
        max_steps = 100
        dialog = wx.ProgressDialog(
            "Progress",
            "Starting...",
            maximum=max_steps,
            parent=self,
            style=wx.PD_CAN_ABORT | wx.PD_AUTO_HIDE | wx.PD_APP_MODAL,
        )
        keep_going = True
        for i in range(max_steps):
            if keep_going:
                wx.MilliSleep(10)  # Simulate work
                keep_going, _ = dialog.Update(i + 1, f"Step {i+1} of {max_steps}")
        dialog.Destroy()
        wx.YieldIfNeeded()


frame = MyFrame(None, "Progress Dialog Example")

@command
def doit():
    if not frame.Shown:
        frame.Show()
    else:
        frame.SetFocus()