Index: ps/trunk/source/gui/CSlider.cpp
===================================================================
--- ps/trunk/source/gui/CSlider.cpp	(revision 23005)
+++ ps/trunk/source/gui/CSlider.cpp	(revision 23006)
@@ -1,137 +1,137 @@
 /* Copyright (C) 2019 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. 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) any later version.
  *
  * 0 A.D. 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 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include "precompiled.h"
 
 #include "CSlider.h"
 
 #include "gui/CGUI.h"
 #include "maths/MathUtil.h"
 
 CSlider::CSlider(CGUI& pGUI)
 	: IGUIObject(pGUI),
 	  m_IsPressed(),
-	  m_ButtonSide()
+	  m_ButtonSide(),
 	  m_CellID(),
 	  m_MaxValue(),
 	  m_MinValue(),
 	  m_Sprite(),
 	  m_SpriteBar(),
-	  m_Value(),
+	  m_Value()
 {
 	RegisterSetting("button_width", m_ButtonSide);
 	RegisterSetting("cell_id", m_CellID);
 	RegisterSetting("max_value", m_MaxValue);
 	RegisterSetting("min_value", m_MinValue);
 	RegisterSetting("sprite", m_Sprite);
 	RegisterSetting("sprite_bar", m_SpriteBar);
 	RegisterSetting("value", m_Value);
 
 	m_Value = Clamp(m_Value, m_MinValue, m_MaxValue);
 }
 
 CSlider::~CSlider()
 {
 }
 
 float CSlider::GetSliderRatio() const
 {
 	return (m_MaxValue - m_MinValue) / (m_CachedActualSize.GetWidth() - m_ButtonSide);
 }
 
 void CSlider::IncrementallyChangeValue(const float difference)
 {
 	m_Value = Clamp(m_Value + difference, m_MinValue, m_MaxValue);
 	UpdateValue();
 }
 
 void CSlider::HandleMessage(SGUIMessage& Message)
 {
 	switch (Message.type)
 	{
 	case GUIM_SETTINGS_UPDATED:
 	{
 		m_Value = Clamp(m_Value, m_MinValue, m_MaxValue);
 		break;
 	}
 	case GUIM_MOUSE_WHEEL_DOWN:
 	{
 		if (m_IsPressed)
 			break;
 		IncrementallyChangeValue(-0.01f);
 		break;
 	}
 	case GUIM_MOUSE_WHEEL_UP:
 	{
 		if (m_IsPressed)
 			break;
 		IncrementallyChangeValue(0.01f);
 		break;
 	}
 	case GUIM_MOUSE_PRESS_LEFT:
 	{
 		m_Mouse = m_pGUI.GetMousePos();
 		m_IsPressed = true;
 
 		IncrementallyChangeValue((m_Mouse.x - GetButtonRect().CenterPoint().x) * GetSliderRatio());
 		break;
 	}
 	case GUIM_MOUSE_RELEASE_LEFT:
 	{
 		m_IsPressed = false;
 		break;
 	}
 	case GUIM_MOUSE_MOTION:
 	{
 		if (!IsMouseOver())
 			m_IsPressed = false;
 		if (m_IsPressed)
 		{
 			float difference = float(m_pGUI.GetMousePos().x - m_Mouse.x) * GetSliderRatio();
 			m_Mouse = m_pGUI.GetMousePos();
 			IncrementallyChangeValue(difference);
 		}
 		break;
 	}
 	default:
 		break;
 	}
 }
 
 void CSlider::Draw()
 {
 	CRect slider_line(m_CachedActualSize);
 	slider_line.left += m_ButtonSide / 2.0f;
 	slider_line.right -= m_ButtonSide / 2.0f;
 	float bz = GetBufferedZ();
 	m_pGUI.DrawSprite(m_SpriteBar, m_CellID, bz, slider_line);
 	m_pGUI.DrawSprite(m_Sprite, m_CellID, bz, GetButtonRect());
 }
 
 void CSlider::UpdateValue()
 {
 	SetSetting<float>("value", m_Value, true);
 	ScriptEvent("valuechange");
 }
 
 CRect CSlider::GetButtonRect() const
 {
 	float ratio = m_MaxValue > m_MinValue ? (m_Value - m_MinValue) / (m_MaxValue - m_MinValue) : 0.0f;
 	float x = m_CachedActualSize.left + ratio * (m_CachedActualSize.GetWidth() - m_ButtonSide);
 	float y = m_CachedActualSize.top + (m_CachedActualSize.GetHeight() - m_ButtonSide) / 2.0;
 	return CRect(x, y, x + m_ButtonSide, y + m_ButtonSide);
 }