Flatpak build (#4175)

* Initial commit for the builder

* fix wx, use hack to install into /app

* add some workarounds for /usr/local

* fix up rest of paths

* attempt to fix wxwebview undef

* figure out why wxwidgets isnt getting its patches applied

* do "proper" patching of wxwidgets

* Flip the flag

* actually append the /usr/local

* restrict package finding to flatpak only

* Update the destdir stuff for mpfr, gmp

* Transfer over all the _destdir, again

* update patch command for all other plats

* initial ci check

* what even happened

* clear ci image

* I doubt this will do anything

* do cleanup after running each step

* remove build objects for flatpak ci

* compress debug info

* Fix MacOS build

* Try saving space after building deps

* No debug info for now

* Do debug info, use thin static archives

* use BSD flag, not --thin

* try building with lto

* Use release, no debug info

* remove lto

* Revert the last 5 commits

* It might require write perms

* Revert "It might require write perms"

This reverts commit 44cec58a57.

* Import fixes for merge

* remove some patch stuff

* the worst hack!

* remove uneeded patches

* Initial commit for the builder

* note to self, go back to regular wx

* attempt to fix wxwebview undef

* do "proper" patching of wxwidgets

* update patch command for all other plats

* what even happened

* -ldep_name-NOTFOUND is still here

* concat patches

* Build wx with flatpak

* more wx shenatigans

* fix a missing import

* build wx with proper flags

* fix imports and libs

* trigger ci

* try fixing mac and windows ci

* remove duplicate definition of freetype

* curl may not have openssl for a dep

* has openssl been found?

* force building

* build images on apple

* cleanup for review

* cleanup cmake files

---------

Co-authored-by: SoftFever <softfeverever@gmail.com>

flatpak/set-dark-theme-variant.py

@@ -0,0 +1,85 @@
+#!/usr/bin/env python3
+
+import Xlib
+import Xlib.display
+import time
+import subprocess
+import os
+import sys
+
+
+disp = Xlib.display.Display()
+root = disp.screen().root
+
+NET_CLIENT_LIST = disp.intern_atom('_NET_CLIENT_LIST')
+
+
+def set_theme_variant_by_window_id(id, variant):
+    # Use subprocess to call
+    # xprop and set the variant from id.
+    try:
+        s = subprocess.call(['xprop', '-f', '_GTK_THEME_VARIANT', '8u', '-set', '_GTK_THEME_VARIANT', variant, '-id', str(id)],
+                            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+        if s == 0:
+            return True
+        return False
+    except Exception as ex:
+        return False
+
+
+def set_theme_variant_from_win_id_collection(win_id_collection, variant):
+    # Loop though all of the collected
+    # window ids and set theme variant
+    for win_id in win_id_collection:
+        set_theme_variant_by_window_id(win_id, variant)
+
+
+def collection_win_id_from_wm_class_name(win_class_name):
+
+    collect = []
+
+    # Loop though all of the windows
+    # and collect id's those that match
+    # win_class: prusa-slicer
+    for win_id in root.get_full_property(NET_CLIENT_LIST, Xlib.X.AnyPropertyType).value:
+        try:
+            win = disp.create_resource_object('window', win_id)
+            if not win.get_wm_transient_for():
+                win_class = win.get_wm_class()
+                if win_id and win_class_name in win_class:
+                    collect.append(
+                        win_id) if win_id not in collect else collect
+        except Xlib.error.BadWindow:
+            pass
+
+    return collect
+
+
+if __name__ == '__main__':
+
+    if os.environ.get('PRUSA_SLICER_DARK_THEME', 'false') != 'true':
+        sys.exit(0)
+
+    # Listen for X Property Change events.
+    root.change_attributes(event_mask=Xlib.X.PropertyChangeMask)
+    # the class name of the slicer window
+    win_class_name = 'prusa-slicer'
+    # the variant to set
+    variant = 'dark'
+
+    start = time.time()
+
+    while True:
+        # collect all of the window ids
+        collect = collection_win_id_from_wm_class_name(win_class_name)
+        # give PrusaSlicer window 2 secs to
+        # collect the wanted window ids
+        # set the theme variant and exit
+        if time.time() - start <= 2:
+            # disp.next_event() blocks if no events are
+            # queued. In combination with while True
+            # it creates a very simple event loop.
+            disp.next_event()
+            set_theme_variant_from_win_id_collection(collect, variant)
+        else:
+            break