Refactoring: Pull Up Duplicate Code

[quassel.git] / src / uisupport / treeviewtouch.cpp

diff --git a/src/uisupport/treeviewtouch.cpp b/src/uisupport/treeviewtouch.cpp
new file mode 100644 (file)
index 0000000..adfb917
--- /dev/null
+++ b/src/uisupport/treeviewtouch.cpp
@@ -0,0 +1,67 @@
+/***************************************************************************
+*   Copyright (C) 2005-2015 by the Quassel Project                        *
+*   devel@quassel-irc.org                                                 *
+*                                                                         *
+*   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 2 of the License, or     *
+*   (at your option) version 3.                                           *
+*                                                                         *
+*   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.,                                       *
+*   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
+***************************************************************************/
+#include "treeviewtouch.h"
+
+#include <QtCore>
+#include <QTouchEvent>
+#include <QScrollBar>
+
+TreeViewTouch::TreeViewTouch(QWidget *parent)
+       : QTreeView(parent)
+{
+       setAttribute(Qt::WA_AcceptTouchEvents);
+}
+
+
+bool TreeViewTouch::event(QEvent *event) {
+       if (event->type() == QEvent::TouchBegin && _lastTouchStart < QDateTime::currentMSecsSinceEpoch() - 1000) { //(slow) double tab = normal behaviour = select multiple. 1000 ok?
+               _touchScrollInProgress = true;
+               _lastTouchStart = QDateTime::currentMSecsSinceEpoch();
+               setVerticalScrollMode(QAbstractItemView::ScrollPerPixel);
+               return true;
+       }
+
+       if (event->type() == QEvent::TouchUpdate && _touchScrollInProgress) {
+               QTouchEvent::TouchPoint p = ((QTouchEvent*)event)->touchPoints().at(0);
+               verticalScrollBar()->setValue(verticalScrollBar()->value() - (p.pos().y() - p.lastPos().y()));
+               return true;
+       }
+
+#if QT_VERSION >= 0x050000
+       if (event->type() == QEvent::TouchEnd || event->type() == QEvent::TouchCancel) {
+#else
+    if (event->type() == QEvent::TouchEnd) {
+#endif
+               _touchScrollInProgress = false;
+               return true;
+       }
+
+       return QTreeView::event(event);
+}
+
+void TreeViewTouch::mousePressEvent(QMouseEvent * event) {
+       if (!_touchScrollInProgress)
+               QTreeView::mousePressEvent(event);
+}
+
+void TreeViewTouch::mouseMoveEvent(QMouseEvent * event) {
+       if (!_touchScrollInProgress)
+               QTreeView::mouseMoveEvent(event);
+};