Add a custom text document in the editor

novelwriter/gui/editordocument.py

@@ -0,0 +1,64 @@
+"""
+novelWriter – GUI Text Document
+===============================
+
+File History:
+Created: 2023-09-07 [2.2b1]
+
+This file is a part of novelWriter
+Copyright 2018–2023, Veronica Berglyd Olsen
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <https://www.gnu.org/licenses/>.
+"""
+from __future__ import annotations
+
+import logging
+from PyQt5.QtCore import QObject
+
+from PyQt5.QtGui import QTextDocument
+from PyQt5.QtWidgets import QPlainTextDocumentLayout
+
+from novelwriter.gui.dochighlight import GuiDocHighlighter
+
+logger = logging.getLogger(__name__)
+
+
+class GuiTextDocument(QTextDocument):
+
+    def __init__(self, parent: QObject) -> None:
+        super().__init__(parent=parent)
+
+        self._handle = None
+        self._syntax = GuiDocHighlighter(self)
+        self.setDocumentLayout(QPlainTextDocumentLayout(self))
+
+        logger.debug("Ready: GuiTextDocument")
+
+        return
+
+    def __del__(self):  # pragma: no cover
+        logger.debug("Delete: GuiTextDocument")
+        return
+
+    @property
+    def syntaxHighlighter(self) -> GuiDocHighlighter:
+        return self._syntax
+
+    def setTextContent(self, text: str, tHandle: str) -> None:
+        """Set the text content of the document."""
+        self._syntax.setHandle(tHandle)
+        self.setPlainText(text)
+        return
+
+# END Class GuiTextDocument