diff -r fd172973428e -r 85503ff2fce9 eric7/HelpViewer/HelpViewerImpl_qtb.py
--- a/eric7/HelpViewer/HelpViewerImpl_qtb.py Thu Oct 07 20:22:02 2021 +0200
+++ b/eric7/HelpViewer/HelpViewerImpl_qtb.py Mon Oct 11 19:59:45 2021 +0200
@@ -7,21 +7,119 @@
Module implementing the QTextBrowser based help viewer class.
"""
+from PyQt6.QtCore import Qt, QByteArray, QUrl
+from PyQt6.QtGui import QDesktopServices, QImage
from PyQt6.QtWidgets import QTextBrowser
from .HelpViewerImpl import HelpViewerImpl
-class HelpViewerImpl_qtb(QTextBrowser, HelpViewerImpl):
+class HelpViewerImpl_qtb(HelpViewerImpl, QTextBrowser):
"""
Class implementing the QTextBrowser based help viewer class.
"""
- def __init__(self, parent):
+ def __init__(self, engine, parent=None):
"""
Constructor
+ @param engine reference to the help engine
+ @type QHelpEngine
@param parent reference to the parent widget
@type QWidget
"""
- super().__init__(parent)
-# HelpViewerImpl.__init__(self)
+ QTextBrowser.__init__(self, parent=parent)
+ HelpViewerImpl.__init__(self, engine)
+
+ self.sourceChanged.connect(self.titleChanged)
+
+ def setUrl(self, url):
+ """
+ Public method to set the URL of the document to be shown.
+
+ @param url source of the document
+ @type QUrl
+ """
+ self.setSource(url)
+
+ def doSetSource(self, url, type):
+ """
+ Public method to load the data and show it.
+
+ @param url DESCRIPTION
+ @type TYPE
+ @param type DESCRIPTION
+ @type TYPE
+ """
+ data = self.getData(url)
+ if data is None:
+ QDesktopServices.openUrl(url)
+ return
+
+ if url != QUrl("about:blank"):
+ super().doSetSource(url, type)
+
+ self.setHtml(data)
+ self.sourceChanged.emit(url)
+ self.loadFinished.emit(True)
+
+ def title(self):
+ """
+ Public method get the page title.
+
+ @return page title
+ @rtype str
+ """
+ return self.documentTitle()
+
+ def loadResource(self, type_, name):
+ """
+ Public method to load data of the specified type from the resource with
+ the given name.
+
+ @param type_ resource type
+ @type int
+ @param name resource name
+ @type QUrl
+ """
+ ba = QByteArray()
+
+ if type_ < 4: # QTextDocument.ResourceType.MarkdownResource
+ url = self._engine.findFile(name)
+ ba = self._engine.fileData(url)
+ if url.toString().lower().endswith(".svg"):
+ image = QImage()
+ image.loadFromData(ba, "svg")
+ if not image.isNull():
+ return image
+
+ return ba
+
+ def mousePressEvent(self, evt):
+ """
+ Protected method called by a mouse press event.
+
+ @param evt reference to the mouse event
+ @type QMouseEvent
+ """
+ if evt.button() == Qt.MouseButton.XButton1:
+ self.backward()
+ elif evt.button() == Qt.MouseButton.XButton2:
+ self.forward()
+ else:
+ super().mousePressEvent(evt)
+
+ def gotoHistory(self, index):
+ """
+ Public method to step through the history.
+
+ @param index history index (<0 backward, >0 forward)
+ @type int
+ """
+ if index < 0:
+ # backward
+ for ind in range(-index):
+ self.backward()
+ else:
+ # forward
+ for ind in range(index):
+ self.forward()
