logging to widget works!

gui/deploy.py

@@ -44,16 +44,22 @@ def get_ffmpeg_version():
 
 
 class Deployer:
-    def __init__(self):
+    def __init__(self, logging_handler: logging.Handler = None):
         logging.basicConfig(stream=sys.stdout, level=logging.INFO)
         self.logger = logging.getLogger()
 
+        if logging_handler is not None:
+            self.logger.addHandler(logging_handler)
+
         self.utils_dir = "./utils"
         self.build_dir = "./build"
         self.music_dir = "./build/music"
         self.source_dir = "./source"
         self.install_dir = self.find_install_dir()
 
+    def write_something(self):
+        self.logger.info("lalala")
+
     def find_install_dir(self):
         self.logger.info("Trying to find Barotraumma install folder")
         library_folders = Path("C:\Program Files (x86)\Steam\steamapps\libraryfolders.vdf")

gui/installer.py

@@ -4,7 +4,6 @@ import getpass
 import logging
 import time
 
-from gui.deploy import Deployer
 from tape_editor_widgets import *
 from widgets import LabelWebLink
 from deploy import Deployer, get_ffmpeg_version
@@ -20,7 +19,8 @@ class OptionsWidget(QWidget):
         super().__init__()
 
         self.parent = parent
-        self.deployer = Deployer()
+        self.logging_handler = SignalHandler()
+        self.deployer = Deployer(logging_handler=self.logging_handler)
 
         options = [("Buffs", "Some songs affect the characters with strengthen\nand haste afflictions."),
                    ("De-buffs", "Some songs affect the characters with psychosis \naffliction."),
@@ -98,6 +98,8 @@ class OptionsWidget(QWidget):
         # Console widget
         self.console_widget = ConsoleWidget(self)
 
+        self.logging_handler.emitter.log_message.connect(self.console_widget.console.appendPlainText)
+
         layout = QVBoxLayout(self)
         layout.addWidget(self.name_gbox)
         layout.addWidget(self.tape_covers_gbox)
@@ -524,7 +526,9 @@ class InstallWidget(QGroupBox):
 
     def download_ffmpeg_action(self):
 
-        self.parent.run_process(download_ffmpeg, (self.ffmpeg_dir.directory, ))
+        self.deployer.write_something()
+
+        #self.parent.run_process(self.deployer.download_ffmpeg, ())
         #download_ffmpeg(self.ffmpeg_dir.directory)
         self.does_ffmpeg_exist()
 
@@ -569,6 +573,24 @@ class MainWindow(QMainWindow):
 
         self.setCentralWidget(MainWidget())
 
+class QSignaler(QObject):
+    log_message = Signal(str)
+
+
+class SignalHandler(logging.Handler):
+    """Logging handler to emit QtSignal with log record text."""
+
+    def __init__(self, *args, **kwargs):
+        super(SignalHandler, self).__init__(*args, **kwargs)
+        self.emitter = QSignaler()
+
+    def emit(self, logRecord):
+        msg = "{0}".format(logRecord.getMessage())
+        self.emitter.log_message.emit(msg)
+        # When the line below is enabled, logging is immediate/otherwise events
+        # on the queue will be processed when the slot has finished.
+        # QtGui.qApp.processEvents()
+
 
 def main():
     os.chdir("..")