Added a theme class that loads the theme from config

nw/theme.py

@@ -0,0 +1,120 @@
+# -*- coding: utf-8 -*-
+"""novelWriter Theme Class
+
+ novelWriter – Theme Class
+===========================
+ This class reads and store the main theme
+
+ File History:
+ Created: 2019-05-18 [0.1.3]
+
+"""
+
+import logging
+import configparser
+import nw
+
+from os import path
+
+logger = logging.getLogger(__name__)
+
+class Theme:
+
+    def __init__(self):
+
+        self.mainConf  = nw.CONFIG
+        self.cssName   = "styles.css"
+        self.confName  = "theme.conf"
+
+        # Loaded Theme Settings
+        self.colHead   = [0,0,0]
+        self.colHeadH  = [0,0,0]
+        self.colEmph   = [0,0,0]
+        self.colDialN  = [0,0,0]
+        self.colDialD  = [0,0,0]
+        self.colDialS  = [0,0,0]
+        self.colComm   = [0,0,0]
+        self.colKey    = [0,0,0]
+        self.colVal    = [0,0,0]
+        self.colSpell  = [0,0,0]
+
+        # Changeable Settings
+        self.guiTheme  = None
+        self.themePath = None
+        self.confFile  = None
+        self.cssFile   = None
+        self.cssData   = ""
+
+        self.updateTheme()
+
+        return
+
+    ##
+    #  Actions
+    ##
+
+    def updateTheme(self):
+        self.guiTheme  = self.mainConf.guiTheme
+        self.themePath = path.join(self.mainConf.themePath, self.guiTheme)
+        self.confFile  = path.join(self.themePath,self.confName)
+        self.cssFile   = path.join(self.themePath,self.cssName)
+        return True
+
+    def loadTheme(self):
+
+        logger.debug("Loading theme files")
+
+        # CSS File
+        try:
+            if path.isfile(self.cssFile):
+                with open(self.cssFile,mode="r") as inFile:
+                    self.cssData = inFile.read()
+        except Exception as e:
+            logger.error("Could not load theme css file")
+            return False
+
+        # Color Config
+        confParser = configparser.ConfigParser()
+        try:
+            confParser.read_file(open(self.confFile))
+        except Exception as e:
+            logger.error("Could not load theme config file")
+            return False
+
+        ## Syntax
+        cnfSec = "Syntax"
+        if confParser.has_section(cnfSec):
+            self.colHead   = self._loadColour(confParser,cnfSec,"headertext")
+            self.colHeadH  = self._loadColour(confParser,cnfSec,"headertag")
+            self.colEmph   = self._loadColour(confParser,cnfSec,"emphasis")
+            self.colDialN  = self._loadColour(confParser,cnfSec,"straightquotes")
+            self.colDialD  = self._loadColour(confParser,cnfSec,"doublequotes")
+            self.colDialS  = self._loadColour(confParser,cnfSec,"singlequotes")
+            self.colComm   = self._loadColour(confParser,cnfSec,"hidden")
+            self.colKey    = self._loadColour(confParser,cnfSec,"keyword")
+            self.colVal    = self._loadColour(confParser,cnfSec,"value")
+            self.colSpell  = self._loadColour(confParser,cnfSec,"spellcheckline")
+
+        return True
+
+    ##
+    #  Internal Functions
+    ##
+
+    def _loadColour(self, confParser, cnfSec, cnfName):
+        if confParser.has_option(cnfSec,cnfName):
+            inData  = confParser.get(cnfSec,cnfName).split(",")
+            outData = []
+            try:
+                outData.append(int(inData[0]))
+                outData.append(int(inData[1]))
+                outData.append(int(inData[2]))
+            except:
+                logger.error("Could not load theme colours for '%s' from config file" % cnfName)
+                outData = [0,0,0]
+        else:
+            logger.warning("Could not find theme colours for '%s' in config file" % cnfName)
+            outData = [0,0,0]
+        return outData
+
+# End Class Theme