X-Git-Url: https://git.quassel-irc.org/?a=blobdiff_plain;f=src%2Fqtui%2Fchatview.cpp;h=5e76a336ba0c308e4996855e1a7190f7925fc5b3;hb=eb1db9563e94831770974fcbdb864d855c73017a;hp=20b25e0e89606fc8cbc5f68199424e268c0d4ba6;hpb=7bfe31852798ccaa67252ad2b67af058e5fe6833;p=quassel.git

diff --git a/src/qtui/chatview.cpp b/src/qtui/chatview.cpp
index 20b25e0e..5e76a336 100644
--- a/src/qtui/chatview.cpp
+++ b/src/qtui/chatview.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2005-2014 by the Quassel Project                        *
+ *   Copyright (C) 2005-2016 by the Quassel Project                        *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -59,6 +59,7 @@ void ChatView::init(MessageFilter *filter)
     _currentScaleFactor = 1;
     _invalidateFilter = false;
 
+    setAttribute(Qt::WA_AcceptTouchEvents);
     setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
     setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
     setAlignment(Qt::AlignLeft|Qt::AlignBottom);
@@ -108,7 +109,37 @@ bool ChatView::event(QEvent *event)
         }
     }
 
-    if (event->type() == QEvent::Wheel) {
+    if (event->type() == QEvent::TouchBegin) {
+        setDragMode(QGraphicsView::ScrollHandDrag);
+        setInteractive(false);
+        if (verticalScrollBar()->isVisible()) return true; //if scrollbar is not visible we need to request backlog below
+    }
+
+#if QT_VERSION >= 0x050000
+    if (event->type() == QEvent::TouchEnd || event->type() == QEvent::TouchCancel) {
+#else
+    if (event->type() == QEvent::TouchEnd) {
+#endif
+        setDragMode(QGraphicsView::NoDrag);
+        setInteractive(true);
+		_firstTouchUpdateHappened = false;
+        return true;
+    }
+
+	if (event->type() == QEvent::TouchUpdate) {
+		if (!_firstTouchUpdateHappened) {
+			QTouchEvent::TouchPoint p = ((QTouchEvent*)event)->touchPoints().at(0);
+			double dx = abs (p.lastPos().x() - p.pos().x());
+			double dy = abs (p.lastPos().y() - p.pos().y());
+			if (dx > dy) {
+				setDragMode(QGraphicsView::NoDrag);
+				setInteractive(true);
+			}
+			_firstTouchUpdateHappened = true;
+		}
+	}
+
+    if (event->type() == QEvent::Wheel || event->type() == QEvent::TouchBegin || event->type() == QEvent::TouchUpdate) {
         if (!verticalScrollBar()->isVisible()) {
             scene()->requestBacklog();
             return true;