Some reshuffling of loading into document viewer

nw/gui/docviewer.py

@@ -13,32 +13,40 @@
 import logging
 import nw
 
+from PyQt5.QtCore    import Qt
 from PyQt5.QtWidgets import QTextBrowser
+from PyQt5.QtGui     import QTextOption
+
+from nw.convert.tokenizer import Tokenizer
+from nw.convert.tohtml    import ToHtml
+from nw.enum              import nwItemType
 
 logger = logging.getLogger(__name__)
 
 class GuiDocViewer(QTextBrowser):
 
-    def __init__(self, theParent):
+    def __init__(self, theParent, theProject):
         QTextBrowser.__init__(self)
 
         logger.debug("Initialising DocViewer ...")
 
         # Class Variables
-        self.mainConf  = nw.CONFIG
-        self.theParent = theParent
-        self.theTheme  = theParent.theTheme
+        self.mainConf   = nw.CONFIG
+        self.theProject = theProject
+        self.theParent  = theParent
+        self.theTheme   = theParent.theTheme
+        self.theHandle  = None
 
-        self.theDoc = self.document()
-        self.theDoc.setDefaultStyleSheet((
+        self.theQDoc = self.document()
+        self.theQDoc.setDefaultStyleSheet((
             "h1, h2, h3, h4 {{"
             "  color: rgb({0},{1},{2});"
             "}}"
         ).format(
             *self.theTheme.colHead
         ))
-        self.theDoc.setDocumentMargin(self.mainConf.textMargin[0])
         self.setMinimumWidth(300)
+        self.initEditor()
 
         logger.debug("DocViewer initialisation complete")
 
@@ -48,4 +56,37 @@ class GuiDocViewer(QTextBrowser):
         self.clear()
         return True
 
+    def initEditor(self):
+        """Set editor settings from mani config.
+        """
+        self.theQDoc.setDocumentMargin(self.mainConf.textMargin[0])
+        theOpt = QTextOption()
+        if self.mainConf.doJustify:
+            theOpt.setAlignment(Qt.AlignJustify)
+        self.theQDoc.setDefaultTextOption(theOpt)
+
+        return True
+
+    def loadText(self, tHandle):
+
+        tItem = self.theProject.getItem(tHandle)
+        if tItem is None:
+            logger.warning("Item not found")
+            return False
+
+        if tItem.itemType != nwItemType.FILE:
+            return False
+
+        logger.debug("Generating preview for item %s" % tHandle)
+        aDoc = ToHtml(self.theProject, self.theParent)
+        aDoc.setText(tHandle)
+        aDoc.doAutoReplace()
+        aDoc.tokenizeText()
+        aDoc.doConvert()
+        self.setHtml(aDoc.theResult)
+        self.theHandle = tHandle
+        self.theProject.setLastViewed(tHandle)
+
+        return True
+
 # END Class GuiDocViewer