Add QTextBrowser as viewing widget and remove some unnecessary code

src/cantor.cpp

@@ -32,12 +32,12 @@
 #include <QApplication>
 #include <QCloseEvent>
 #include <QDebug>
-#include <QDockWidget>
 #include <QDir>
+#include <QDockWidget>
 #include <QFileDialog>
+#include <QGraphicsView>
 #include <QPushButton>
 #include <QRegularExpression>
-#include <QGraphicsView>
 
 #include "lib/backend.h"
 #include "lib/panelpluginhandler.h"

src/cantor_part.cpp

@@ -741,7 +741,7 @@ void CantorPart::enableTypesetting(bool enable)
 
 void CantorPart::showBackendHelp()
 {
-    qDebug()<<"showing backends help";
+    qDebug()<<"Showing backend's help";
     auto* backend = m_worksheet->session()->backend();
     QUrl url = backend->helpUrl();
     qDebug()<<"launching url "<<url;

src/panelplugins/documentationpanel/documentationpanelplugin.cpp

@@ -31,12 +31,6 @@ DocumentationPanelPlugin::~DocumentationPanelPlugin()
     delete m_widget;
 }
 
-/*void DocumentationPanelPlugin::onSessionChanged()
-{
-    if(m_widget)
-        m_widget->setSession(session());
-}*/
-
 QWidget* DocumentationPanelPlugin::widget()
 {
     if(m_widget == nullptr)

src/panelplugins/documentationpanel/documentationpanelplugin.h

@@ -38,9 +38,6 @@ class DocumentationPanelPlugin : public Cantor::PanelPlugin
     bool showOnStartup() override;
     void setShowOnStartup(bool);
 
-  /*protected:
-    void onSessionChanged() override;*/
-
   private:
     bool m_showAtStart;
     QPointer<DocumentationPanelWidget> m_widget;

src/panelplugins/documentationpanel/documentationpanelwidget.cpp

@@ -28,6 +28,7 @@
 #include <QByteArray>
 #include <QDebug>
 #include <QDir>
+#include <QHBoxLayout>
 #include <QHelpContentWidget>
 #include <QHelpEngine>
 #include <QHelpIndexWidget>
@@ -59,18 +60,17 @@ void DocumentationPanelWidget::setSession(Cantor::Session* session)
 void DocumentationPanelWidget::addWidgets()
 {
     //QPointer<QSplitter> m_splitter;
-    //QPointer<QTextBrowser> m_textBrowser;
 
     //m_engine = new QHelpEngine(QApplication::applicationDirPath() + QLatin1String("/documentation/maxima_help_collection.qhc"), this);
     m_engine = new QHelpEngine(QApplication::applicationDirPath() + QLatin1String("admin/documentation/maxima_help_collection.qhc"), this);
-    m_engine->setupData();
 
-    QByteArray helpData = m_engine->fileData(QUrl(QLatin1String("qthelp://org.kde.cantor/doc/maxima_7.html#SEC36")));
+    if( !m_engine->setupData() ) {
+        qWarning() << "Couldn't setup QtHelp Collection file";
+    }
 
-    if (!helpData.isEmpty())
-        qDebug() << helpData;
+    QByteArray helpData = m_engine->fileData(QUrl(QLatin1String("qthelp://org.kde.cantor/doc/maxima_7.html#SEC36")));
 
-    QPointer<QTabWidget> m_tabWidget = new QTabWidget;
+    QPointer<QTabWidget> m_tabWidget = new QTabWidget(this);
     m_tabWidget->setMaximumWidth(1000);
     m_tabWidget->setMinimumWidth(500);
     m_tabWidget->setMovable(true);
@@ -78,8 +78,13 @@ void DocumentationPanelWidget::addWidgets()
     m_tabWidget->addTab(m_engine->indexWidget(), i18n("Index"));
     m_tabWidget->addTab(m_engine->contentWidget(), i18n("Contents"));
 
+
+    QPointer<QTextBrowser> m_textBrowser = new QTextBrowser(this);
+    m_textBrowser->setSource(QUrl(QLatin1String("qthelp://org.kde.cantor/doc/maxima_7.html#SEC36")), QTextDocument::HtmlResource);
+
     QVBoxLayout* layout = new QVBoxLayout(this);
     layout->addWidget(m_tabWidget, 1);
+    layout->addWidget(m_textBrowser, 2);
 
     // Connect to various signals and slots
 }