Merge with develop

code/nel/include/nel/gui/ctrl_scroll.h

@@ -147,7 +147,7 @@ namespace NLGUI
 		sint32 _Aligned; // 0-Top 1-Bottom 2-Left 3-Right
 
 		sint32 _TrackDispPos;
-		sint32 _TrackPos;
+		float  _TrackPos;
 		sint32 _TrackSize;
 		sint32 _TrackSizeMin;
 

code/nel/include/nel/gui/group_scrolltext.h

@@ -66,6 +66,8 @@ namespace NLGUI
 		// from CCtrlBase
 		virtual	void		elementCaptured(CCtrlBase *capturedElement);
 
+		// setup vertical scrolling event
+		void	smoothScrollY (sint32 dy);
 
 		REFLECT_EXPORT_START(CGroupScrollText, CInterfaceGroup)
 		REFLECT_EXPORT_END
@@ -78,6 +80,9 @@ namespace NLGUI
 		bool            _Settuped;
 		bool			_InvertScrollBar;
 		sint32          _ListHeight;
+		bool			_Scrolling;
+		float			_ScrollDistance;
+		bool			_ClockMsgEventRegistered;
 	protected:
 		void    setup();
 		void    updateScrollBar();

code/nel/src/gui/ctrl_scroll.cpp

@@ -653,8 +653,7 @@ namespace NLGUI
 								factor = -(float)_Target->getOfsY() / factor;
 								if (factor < 0.0f) factor = 0.0f;
 								if (factor > 1.0f) factor = 1.0f;
-								factor = factor * (getHReal()-_TrackSize);
+								_TrackPos = factor * (getHReal()-_TrackSize);
-								_TrackPos = (sint32)factor;
 							}
 							else // TOP
 							{
@@ -663,8 +662,7 @@ namespace NLGUI
 								if (factor < 0.0f) factor = 0.0f;
 								if (factor > 1.0f) factor = 1.0f;
 								sint32 hreal = getHReal();
-								factor = (1.0f-factor) * (hreal - _TrackSize);
+								_TrackPos = (1.0f-factor) * (hreal - _TrackSize);
-								_TrackPos = (sint32)factor;
 							}
 						}
 
@@ -712,8 +710,7 @@ namespace NLGUI
 								factor = -(float)_Target->getOfsX() / factor;
 								if (factor < 0.0f) factor = 0.0f;
 								if (factor > 1.0f) factor = 1.0f;
-								factor = factor * (getWReal()-_TrackSize);
+								_TrackPos = factor * (getWReal()-_TrackSize);
-								_TrackPos = (sint32)factor;
 							}
 							else // RIGHT
 							{
@@ -722,8 +719,7 @@ namespace NLGUI
 								if (factor < 0.0f) factor = 0.0f;
 								if (factor > 1.0f) factor = 1.0f;
 								sint32 hreal = getWReal();
-								factor = (1.0f-factor) * (hreal - _TrackSize);
+								_TrackPos = (1.0f-factor) * (hreal - _TrackSize);
-								_TrackPos = (sint32)factor;
 							}
 						}
 
@@ -930,8 +926,8 @@ namespace NLGUI
 		if ((getWReal()-_TrackSize) <= 0)
 			return 0;
 
-		sint32 newtpos;
+		float newtpos;
-		sint32 tpos = _TrackPos;
+		float tpos = _TrackPos;
 		sint32 tsize = _TrackSize;
 
 		// Limit the scroller to the defined area
@@ -998,8 +994,8 @@ namespace NLGUI
 		if ((getHReal()-_TrackSize) <= 0)
 			return 0;
 
-		sint32 newtpos;
+		float newtpos;
-		sint32 tpos = _TrackPos;
+		float tpos = _TrackPos;
 		sint32 tsize = _TrackSize;
 
 		// Limit the scroller to the defined area
@@ -1202,16 +1198,14 @@ namespace NLGUI
 			float factor = (float)(wReal-maxWReal);
 			factor = -(float)ofsX / factor;
 			clamp(factor, 0.f, 1.f);
-			factor = factor * (getWReal()-_TrackSize);
+			_TrackPos = factor * (getWReal()-_TrackSize);
-			_TrackPos = (sint32)factor;
 		}
 		else // RIGHT
 		{
 			float factor = (float)(wReal-maxWReal);
 			factor = (float)ofsX / factor;
 			clamp(factor, 0.f, 1.f);
-			factor = (1.0f-factor) * (getWReal() - _TrackSize);
+			_TrackPos = (1.0f-factor) * (getWReal() - _TrackSize);
-			_TrackPos = (sint32)factor;
 		}
 
 		// invalidate only position. 1 pass is sufficient
@@ -1240,8 +1234,7 @@ namespace NLGUI
 			float factor = (float)(hReal-maxHReal);
 			factor = -(float)ofsY / factor;
 			clamp(factor, 0.f, 1.f);
-			factor = factor * (getHReal()-_TrackSize);
+			_TrackPos = factor * (getHReal()-_TrackSize);
-			_TrackPos = (sint32)factor;
 		}
 		else // TOP
 		{
@@ -1250,8 +1243,7 @@ namespace NLGUI
 			float factor = (float)(hReal-maxHReal);
 			factor = (float)ofsY / factor;
 			clamp(factor, 0.f, 1.f);
-			factor = (1.0f-factor) * (getHReal() - _TrackSize);
+			_TrackPos = (1.0f-factor) * (getHReal() - _TrackSize);
-			_TrackPos = (sint32)factor;
 		}
 
 		// invalidate only position. 1 pass is sufficient

code/nel/src/gui/group_scrolltext.cpp

@@ -40,6 +40,9 @@ namespace NLGUI
 											_Settuped(false),
 											_InvertScrollBar(true),
 											_ListHeight(0),
+											_Scrolling(false),
+											_ScrollDistance(0),
+											_ClockMsgEventRegistered(false),
 											_StartHeight(0),
 											_EllapsedTime(0)
 	{
@@ -166,18 +169,63 @@ namespace NLGUI
 				{
 					if (isIn(eventDesc.getX(), eventDesc.getY()))
 					{
-						sint32 h = _List->getMaxHReal() / 2;
+						// limit scroll to 100px with single wheel event
+						sint32 h = std::min(100, _List->getMaxHReal() / 2);
 						if (h == 0) h = 1;
-						_ScrollBar->moveTargetY(- eventDesc.getWheel() * h);
+
+						smoothScrollY(- eventDesc.getWheel() * h);
 						return true;
 					}
 				}
 			}
 		}
+
+		if (event.getType() == NLGUI::CEventDescriptor::system)
+		{
+			if (_Scrolling && _ScrollBar)
+			{
+				float dy = _ScrollDistance / 4;
+				if ((sint32) dy != 0)
+				{
+					_ScrollBar->moveTargetY(dy);
+					_ScrollDistance -= dy;
+				}
+				else
+				{
+					_Scrolling = false;
+					if (_ClockMsgEventRegistered)
+					{
+						_ClockMsgEventRegistered = false;
+						CWidgetManager::getInstance()->unregisterClockMsgTarget(this);
+					}
+				}
+			}
+		}
+
 		if (CInterfaceGroup::handleEvent(event)) return true;
 		return false;
 	}
 
+	//========================================================================
+	void CGroupScrollText::smoothScrollY(sint32 dy)
+	{
+		if (!_Scrolling)
+		{
+			_Scrolling = true;
+			_ScrollDistance = 0;
+
+			// register for clock tick event if not already done
+			CWidgetManager *pWM = CWidgetManager::getInstance();
+			if (!pWM->isClockMsgTarget(this))
+			{
+				pWM->registerClockMsgTarget(this);
+				_ClockMsgEventRegistered = true;
+			}
+		}
+
+		_ScrollDistance += dy;
+	}
+
 	//========================================================================
 	void CGroupScrollText::setup()
 	{