--- a/webengine/osswebengine/WebKit/s60/webview/WebScrollingDeceleratorGH.cpp Tue Feb 02 00:56:45 2010 +0200
+++ b/webengine/osswebengine/WebKit/s60/webview/WebScrollingDeceleratorGH.cpp Fri Mar 19 09:52:28 2010 +0200
@@ -28,6 +28,7 @@
#include "WebKitLogger.h"
+using namespace RT_GestureHelper;
// constants
const int KRecordSize = 4;
@@ -37,9 +38,7 @@
const int KScrollIntervalTimeout = 60000; // scroll timer interval in microseconds
-const float KDeccelerationLow = -350.0;
-const float KDeccelerationHigh = -600.0;
-const float KSpeedHigh = 2000.0;
+const float KDecceleration = -700.0;
int decelTimerCB(TAny* ptr);
@@ -79,7 +78,6 @@
void WebScrollingDeceleratorGH::ConstructL()
{
m_decelTimer = CPeriodic::NewL(CActive::EPriorityStandard);
- m_deceleration = KDeccelerationHigh;
}
// -----------------------------------------------------------------------------
@@ -93,7 +91,7 @@
int WebScrollingDeceleratorGH::getDecceleration()
{
- return m_deceleration;
+ return KDecceleration;
}
@@ -116,22 +114,8 @@
{
m_decelelatorSwitch = true;
m_scrollbarDrawer = scrollbarDrawer;
- float speedX = speed.iX;
- float speedY = speed.iY;
- float absSpeedX = abs(speedX);
- float absSpeedY = abs(speedY);
-
- if (absSpeedX > KSpeedHigh) {
- speedX = KSpeedHigh * speedX/absSpeedX ;
- m_deceleration = KDeccelerationLow;
- }
- if (absSpeedY > KSpeedHigh) {
- speedY = KSpeedHigh * speedY/absSpeedY;
- m_deceleration = KDeccelerationLow;
- }
-
- m_initSpeed.iX = (-1) * speedX;
- m_initSpeed.iY = (-1) * speedY;
+ m_initSpeed.iX = (-1) * speed.iX;
+ m_initSpeed.iY = (-1) * speed.iY;
m_numscrollsteps = 0;
if (m_decelTimer->IsActive()) {
@@ -161,16 +145,14 @@
TReal32 accelX = 0.0;
TReal32 accelY = 0.0;
- TReal32 deceleration = getDecceleration();
-
if (m_initSpeed.iX) {
- accelX = (m_initSpeed.iX > 0) ? deceleration : (-1) * deceleration;
+ accelX = (m_initSpeed.iX > 0) ? KDecceleration : (-1) * KDecceleration;
vx = m_initSpeed.iX + accelX * t;
dx = m_initSpeed.iX * t + 0.5 * accelX * (t * t);
}
if (m_initSpeed.iY) {
- accelY = (m_initSpeed.iY > 0) ? deceleration : (-1) * deceleration;
+ accelY = (m_initSpeed.iY > 0) ? KDecceleration : (-1) * KDecceleration;
vy = m_initSpeed.iY + accelY * t;
dy = m_initSpeed.iY * t + 0.5 * accelY * (t * t);
}