--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/eric7/Preferences/ThemeManager.py Thu Jul 07 11:23:56 2022 +0200
@@ -0,0 +1,214 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2021 - 2022 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a manager object for color themes.
+"""
+
+import json
+import os
+import re
+
+from PyQt6.QtCore import QObject
+
+from EricWidgets import EricMessageBox, EricFileDialog
+
+import Globals
+import Preferences
+
+from eric7config import getConfig
+
+
+class ThemeManager(QObject):
+ """
+ Class implementing a manager object for color themes.
+ """
+ ColorKeyPatternList = [
+ "Diff/.*Color",
+ "Editor/Colour/",
+ "IRC/.*Colou?r",
+ "Project/Colour",
+ "Python/.*Color",
+ "Scintilla/.*color",
+ "Scintilla/.*paper",
+ "Tasks/.*Color",
+ "WebBrowser/.*Colou?r",
+ ]
+ ColorKeyList = [
+ "Debugger/BgColorChanged",
+ "Debugger/BgColorNew",
+ "UI/IconBarColor",
+ "UI/LogStdErrColour",
+ "UI/NotificationCriticalBackground",
+ "UI/NotificationCriticalForeground",
+ "UI/NotificationWarningBackground",
+ "UI/NotificationWarningForeground",
+ ]
+
+ def __init__(self: "ThemeManager", parent: QObject = None):
+ """
+ Constructor
+
+ @param parent reference to the parent object (defaults to None)
+ @type QObject (optional)
+ """
+ super().__init__(parent)
+
+ def importTheme(self: "ThemeManager") -> bool:
+ """
+ Public method to import a theme file and set the colors.
+
+ @return flag indicating a successful import
+ @rtype bool
+ """
+ filename = EricFileDialog.getOpenFileName(
+ None,
+ self.tr("Import Theme"),
+ getConfig("ericThemesDir"),
+ self.tr("eric Theme Files (*.ethj);;All Files (*)")
+ )
+ if filename:
+ try:
+ with open(filename, "r") as f:
+ jsonString = f.read()
+ themeDict = json.loads(jsonString)
+ except (TypeError, OSError) as err:
+ EricMessageBox.critical(
+ None,
+ self.tr("Import Theme"),
+ self.tr(
+ "<p>The theme file <b>{0}</b> could not"
+ " be read.</p><p>Reason: {1}</p>"
+ ).format(filename, str(err))
+ )
+ return False
+
+ # step 1: process stylesheet data
+ stylesheetDict = themeDict["stylesheet"]
+ if stylesheetDict["name"]:
+ stylesheetsDir = os.path.join(
+ Globals.getConfigDir(), "stylesheets")
+ if not os.path.exists(stylesheetsDir):
+ os.makedirs(stylesheetsDir)
+ stylesheetFile = os.path.join(
+ stylesheetsDir, stylesheetDict["name"])
+ ok = EricMessageBox.yesNo(
+ None,
+ self.tr("Import Theme"),
+ self.tr(
+ "The stylesheet file {0} exists already."
+ " Shall it be overwritten?"
+ ).format(stylesheetDict["name"])
+ ) if os.path.exists(stylesheetFile) else True
+ if ok:
+ try:
+ with open(stylesheetFile, "w") as f:
+ f.write(stylesheetDict["contents"])
+ except OSError as err:
+ EricMessageBox.critical(
+ None,
+ self.tr("Import Theme"),
+ self.tr(
+ "<p>The stylesheet file <b>{0}</b> could"
+ " not be written.</p><p>Reason: {1}</p>"
+ ).format(stylesheetFile, str(err))
+ )
+ stylesheetFile = ""
+ Preferences.setUI("StyleSheet", stylesheetFile)
+
+ # step 2: transfer the color entries
+ settings = Preferences.getSettings()
+ colorsDict = themeDict["colors"]
+ for key, value in colorsDict.items():
+ settings.setValue(key, value)
+
+ Preferences.syncPreferences()
+ return True
+
+ return False
+
+ def exportTheme(self: "ThemeManager"):
+ """
+ Public method to export the current colors to a theme file.
+ """
+ filename, selectedFilter = EricFileDialog.getSaveFileNameAndFilter(
+ None,
+ self.tr("Export Theme"),
+ os.path.expanduser("~"),
+ self.tr("eric Theme Files (*.ethj)"),
+ "",
+ EricFileDialog.DontConfirmOverwrite
+ )
+ if filename:
+ ext = os.path.splitext(filename)[1]
+ if not ext:
+ filename = "{0}{1}".format(
+ filename,
+ selectedFilter.rsplit(None, 1)[-1][2:-1])
+
+ ok = (
+ EricMessageBox.yesNo(
+ None,
+ self.tr("Export Theme"),
+ self.tr(
+ """<p>The theme file <b>{0}</b> exists"""
+ """ already. Overwrite it?</p>""").format(filename))
+ if os.path.exists(filename) else
+ True
+ )
+
+ if ok:
+ # step 1: generate a dictionary with all color settings
+ settings = Preferences.getSettings()
+ colorKeyFilterRe = re.compile("|".join(
+ ThemeManager.ColorKeyPatternList +
+ ThemeManager.ColorKeyList
+ ))
+
+ keys = [k for k in settings.allKeys()
+ if colorKeyFilterRe.match(k)]
+ colorsDict = {}
+ for key in keys:
+ colorsDict[key] = settings.value(key)
+
+ # step 2: read the contents of the current stylesheet
+ stylesheetDict = {
+ "contents": "",
+ "name": ""
+ }
+ stylesheet = Preferences.getUI("StyleSheet")
+ if stylesheet and os.path.exists(stylesheet):
+ try:
+ with open(stylesheet, "r") as f:
+ stylesheetDict["contents"] = f.read()
+ stylesheetDict["name"] = os.path.basename(stylesheet)
+ except OSError as err:
+ EricMessageBox.critical(
+ None,
+ self.tr("Export Theme"),
+ self.tr(
+ "<p>The stylesheet file <b>{0}</b> could not"
+ " be read.</p><p>Reason: {1}</p>"
+ ).format(stylesheet, str(err))
+ )
+
+ themeDict = {
+ "colors": colorsDict,
+ "stylesheet": stylesheetDict,
+ }
+
+ try:
+ jsonString = json.dumps(themeDict, indent=2)
+ with open(filename, "w") as f:
+ f.write(jsonString)
+ except (TypeError, OSError) as err:
+ EricMessageBox.critical(
+ None,
+ self.tr("Export Theme"),
+ self.tr(
+ "<p>The theme file <b>{0}</b> could not"
+ " be written.</p><p>Reason: {1}</p>"
+ ).format(filename, str(err))
+ )
