diff -r f99d60d6b59b -r 2602857055c5 eric6/E5Gui/E5MainWindow.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/E5Gui/E5MainWindow.py Sun Apr 14 15:09:21 2019 +0200
@@ -0,0 +1,70 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2012 - 2019 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a main window class with styling support.
+"""
+
+from __future__ import unicode_literals
+
+from PyQt5.QtCore import QCoreApplication
+from PyQt5.QtWidgets import QMainWindow, QStyleFactory, QApplication
+
+from .E5Application import e5App
+from . import E5MessageBox
+
+
+class E5MainWindow(QMainWindow):
+ """
+ Class implementing a main window with styling support.
+ """
+ def __init__(self, parent=None):
+ """
+ Constructor
+
+ @param parent reference to the parent widget (QWidget)
+ """
+ super(E5MainWindow, self).__init__(parent)
+
+ self.defaultStyleName = QApplication.style().objectName()
+
+ def setStyle(self, styleName, styleSheetFile):
+ """
+ Public method to set the style of the interface.
+
+ @param styleName name of the style to set (string)
+ @param styleSheetFile name of a style sheet file to read to overwrite
+ defaults of the given style (string)
+ """
+ # step 1: set the style
+ style = None
+ if styleName != "System" and styleName in QStyleFactory.keys():
+ style = QStyleFactory.create(styleName)
+ if style is None:
+ style = QStyleFactory.create(self.defaultStyleName)
+ if style is not None:
+ QApplication.setStyle(style)
+
+ # step 2: set a style sheet
+ if styleSheetFile:
+ try:
+ f = open(styleSheetFile, "r", encoding="utf-8")
+ styleSheet = f.read()
+ f.close()
+ except (IOError, OSError) as msg:
+ E5MessageBox.warning(
+ self,
+ QCoreApplication.translate(
+ "E5MainWindow", "Loading Style Sheet"),
+ QCoreApplication.translate(
+ "E5MainWindow",
+ """<p>The Qt Style Sheet file <b>{0}</b> could"""
+ """ not be read.<br>Reason: {1}</p>""")
+ .format(styleSheetFile, str(msg)))
+ return
+ else:
+ styleSheet = ""
+
+ e5App().setStyleSheet(styleSheet)
