ginebra2/KineticHelper.cpp
changeset 5 0f2326c2a325
parent 0 1450b09d0cfd
child 6 1c3b8676e58c
--- a/ginebra2/KineticHelper.cpp	Fri May 14 15:40:36 2010 +0300
+++ b/ginebra2/KineticHelper.cpp	Wed Jun 23 17:59:43 2010 +0300
@@ -1,24 +1,27 @@
 /*
 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
 * All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU Lesser General Public License as published by
+* the Free Software Foundation, version 2.1 of the License.
 *
-* Initial Contributors:
-* Nokia Corporation - initial contribution.
+* 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 Lesser General Public License for more details.
 *
-* Contributors:
+* You should have received a copy of the GNU Lesser General Public License
+* along with this program.  If not,
+* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".
 *
-* Description: 
+* Description:
 *
 */
-
 #include <QTimer>
 #include <QTime>
 #include <QPoint>
-#include <QDebug> 
+#include <QDebug>
 
 #include "KineticHelper.h"
 
@@ -26,7 +29,7 @@
 
 KineticHelper::KineticHelper(KineticScrollable* scrollable, qreal decel, int kineticTimeout) :
      m_scrollable(scrollable),
-     m_decel(decel), 
+     m_decel(decel),
      m_kineticTimeout(kineticTimeout)
 {
     m_kineticTimer = new QTimer(this);
@@ -47,17 +50,17 @@
 
 void KineticHelper::startScrolling()
 {
-	m_initialSpeed = m_scrollable->getInitialSpeed() * 1000;	
-	m_initialPos = m_scrollable->getInitialPosition();
-	if (m_kineticTimer->isActive()) {
-	    m_kineticTimer->stop();
-	}
-	m_kineticSteps = 0;
-	m_kineticScrollTime = 0.0;
-	m_kineticTimer->start(m_kineticTimeout);
-	m_actualTime = QTime::currentTime();
-	m_actualTime.start();
-	qDebug() << "starting kinetic timer at " << m_initialPos << ", at " << m_actualTime;  
+    m_initialSpeed = m_scrollable->getInitialSpeed() * 1000;
+    m_initialPos = m_scrollable->getInitialPosition();
+    if (m_kineticTimer->isActive()) {
+        m_kineticTimer->stop();
+    }
+    m_kineticSteps = 0;
+    m_kineticScrollTime = 0.0;
+    m_kineticTimer->start(m_kineticTimeout);
+    m_actualTime = QTime::currentTime();
+    m_actualTime.start();
+    qDebug() << "starting kinetic timer at " << m_initialPos << ", at " << m_actualTime;
 }
 
 
@@ -73,8 +76,8 @@
 
     int t = m_actualTime.elapsed();
     m_kineticScrollTime += (((qreal)t) / 1000);
-    
-    qDebug() << "kineticScroll(): elapsed: " << t << ", m_kineticSteps: " << m_kineticSteps << 
+
+    qDebug() << "kineticScroll(): elapsed: " << t << ", m_kineticSteps: " << m_kineticSteps <<
                 ", m_kineticScrollTime: " << m_kineticScrollTime <<
                 ", decelX: "<< decelX << ", decelY: " << decelY << ", m_initialSpeed: " << m_initialSpeed;
     if (m_initialSpeed.x()) {
@@ -85,11 +88,11 @@
             vx = 0;
         }
         else {
-            dx = m_kineticScrollTime * m_initialSpeed.x() + 
+            dx = m_kineticScrollTime * m_initialSpeed.x() +
                 0.5 * decelX * m_kineticScrollTime * m_kineticScrollTime;
         }
     }
-    
+
     if (m_initialSpeed.y()) {
         vy = m_initialSpeed.y() + decelY * m_kineticScrollTime;
         qDebug() << "vy: " << vy;
@@ -98,19 +101,19 @@
             vy = 0;
         }
         else {
-            dy = m_kineticScrollTime * m_initialSpeed.y() + 
+            dy = m_kineticScrollTime * m_initialSpeed.y() +
                  0.5 * decelY * m_kineticScrollTime * m_kineticScrollTime;
         }
     }
-        
+
     QPoint scrollPos = m_scrollable->getScrollPosition();
     QPoint distPos = m_initialPos + QPointF(dx, dy).toPoint();
-        
+
     if (vx != 0 || vy != 0) {
         qDebug() << "kineticScroll(): scroll from " << scrollPos << " to " << distPos;
         m_scrollable->scrollTo(distPos);
     }
-    
+
     if ((vx == 0 && vy == 0) || scrollPos == m_scrollable->getScrollPosition()) {
         qDebug() << "kineticScroll(): stopping timer";
         stopScrolling();