diff options
Diffstat (limited to 'src/preview_thread.py')
| -rw-r--r-- | src/preview_thread.py | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/src/preview_thread.py b/src/preview_thread.py index e58f04e..afb5e50 100644 --- a/src/preview_thread.py +++ b/src/preview_thread.py @@ -1,3 +1,7 @@ +''' + Thread that runs to create QImages for MainWindow's preview label. + Processes a queue of component lists. +''' from PyQt5 import QtCore, QtGui, uic from PyQt5.QtCore import pyqtSignal, pyqtSlot from PIL import Image @@ -11,6 +15,7 @@ from copy import copy class Worker(QtCore.QObject): imageCreated = pyqtSignal(['QImage']) + error = pyqtSignal() def __init__(self, parent=None, queue=None): QtCore.QObject.__init__(self) @@ -59,12 +64,15 @@ class Worker(QtCore.QObject): "This is a fatal error." % str(component), detail=str(e), - icon='Warning' + icon='Warning', + parent=None # mainwindow is in a different thread ) - quit(1) - - self._image = ImageQt(frame) - self.imageCreated.emit(QtGui.QImage(self._image)) + from frame import BlankFrame + self.imageCreated.emit(ImageQt(BlankFrame)) + self.error.emit() + break + else: + self.imageCreated.emit(ImageQt(frame)) except Empty: True |