2024-02-09 Fred Gleason <fredg@paravelsystems.com>

* Added a 'RDEventFilter' class.
	* Fixed bugs in rdairplay(1) that caused scroll bars to appear when
	loading web content into the message widget.

Signed-off-by: Fred Gleason <fredg@paravelsystems.com>

lib/Makefile.am

@@ -132,6 +132,7 @@ dist_librd_la_SOURCES = dbversion.h\
                         rdevent.cpp rdevent.h\
                         rdevent_line.cpp rdevent_line.h\
                         rdevent_player.cpp rdevent_player.h\
+                        rdeventfilter.cpp rdeventfilter.h\
                         rdeventimportlist.cpp rdeventimportlist.h\
                         rdexport_settings_dialog.cpp rdexport_settings_dialog.h\
                         rdfeed.cpp rdfeed.h\
@@ -344,6 +345,7 @@ nodist_librd_la_SOURCES = moc_rdadd_cart.cpp\
                           moc_rdemptycart.cpp\
                           moc_rdendpointlistmodel.cpp\
                           moc_rdevent_player.cpp\
+                          moc_rdeventfilter.cpp\
                           moc_rdexport_settings_dialog.cpp\
                           moc_rdfeed.cpp\
                           moc_rdfeedlistmodel.cpp\

lib/librd.pro

@@ -102,6 +102,7 @@ SOURCES += rdescape_string.cpp
 SOURCES += rdevent.cpp
 SOURCES += rdevent_line.cpp
 SOURCES += rdeventimportlist.cpp
+SOURCES += rdeventfilter.cpp
 SOURCES += rdexport_settings_dialog.cpp
 SOURCES += rdfeedlistmodel.cpp
 SOURCES += rdfontengine.cpp
@@ -292,6 +293,7 @@ HEADERS += rdendpointlistmodel.h
 HEADERS += rdescape_string.h
 HEADERS += rdevent.h
 HEADERS += rdevent_line.h
+HEADERS += rdeventfilter.h
 HEADERS += rdeventimportlist.h
 HEADERS += rdexport_settings_dialog.h
 HEADERS += rdfeedlistmodel.h

lib/rdeventfilter.cpp

@@ -0,0 +1,59 @@
+// rdeventfilter.cpp
+//
+// Filter one or more window system events
+//
+//   (C) Copyright 2024 Fred Gleason <fredg@paravelsystems.com>
+//
+//   This program is free software; you can redistribute it and/or modify
+//   it under the terms of the GNU General Public License version 2 as
+//   published by the Free Software Foundation.
+//
+//   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, write to the Free Software
+//   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+
+#include <QKeyEvent>
+
+#include <stdio.h>
+
+#include "rdeventfilter.h"
+
+RDEventFilter::RDEventFilter(QObject *parent)
+{
+}
+
+
+QList<QEvent::Type> RDEventFilter::filterList() const
+{
+  return d_filter_types;
+}
+
+
+void RDEventFilter::addFilter(QEvent::Type type)
+{
+  if(!d_filter_types.contains(type)) {
+    d_filter_types.push_back(type);
+  }
+}
+
+
+void RDEventFilter::removeFilter(QEvent::Type type)
+{
+  d_filter_types.removeAll(type);
+}
+
+
+bool RDEventFilter::eventFilter(QObject *obj,QEvent *e)
+{
+  if(d_filter_types.contains(e->type())) {
+    // Block it
+    return true;
+  }
+  return QObject::eventFilter(obj,e);
+}

lib/rdeventfilter.h

@@ -0,0 +1,40 @@
+// rdeventfilter.h
+//
+// Filter one or more window system events
+//
+//   (C) Copyright 2024 Fred Gleason <fredg@paravelsystems.com>
+//
+//   This program is free software; you can redistribute it and/or modify
+//   it under the terms of the GNU General Public License version 2 as
+//   published by the Free Software Foundation.
+//
+//   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, write to the Free Software
+//   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+
+#ifndef RDEVENTFILTER_H
+#define RDEVENTFILTER_H
+
+#include <QList>
+#include <QObject>
+
+class RDEventFilter : public QObject
+{
+ public:
+  RDEventFilter(QObject *parent);
+  QList<QEvent::Type> filterList() const;
+  void addFilter(QEvent::Type type);
+  void removeFilter(QEvent::Type type);
+
+ protected:
+  bool eventFilter(QObject *obj,QEvent *e) override;
+  QList<QEvent::Type> d_filter_types;
+};
+
+#endif  // RDEVENTFILTER_H