Method DoEvent

DuiLib/Control/UISlider.cpp:99–200

	}

	void CSliderUI::DoEvent(TEventUI& event)
	{
		if( !IsMouseEnabled() && event.Type > UIEVENT__MOUSEBEGIN && event.Type < UIEVENT__MOUSEEND ) {
			if( m_pParent != NULL ) m_pParent->DoEvent(event);
			else CProgressUI::DoEvent(event);
			return;
		}

		if( event.Type == UIEVENT_BUTTONDOWN || event.Type == UIEVENT_DBLCLICK )
		{
			if( IsEnabled() ) {
				RECT rcThumb = GetThumbRect();
				if( ::PtInRect(&rcThumb, event.ptMouse) ) {
					m_uButtonState |= UISTATE_CAPTURED;
				}
			}
			return;
		}
		if( event.Type == UIEVENT_BUTTONUP )
		{
			int nValue;
			if( (m_uButtonState & UISTATE_CAPTURED) != 0 ) {
				m_uButtonState &= ~UISTATE_CAPTURED;
			}
			if( m_bHorizontal ) {
				if( event.ptMouse.x >= m_rcItem.right - m_szThumb.cx / 2 ) nValue = m_nMax;
				else if( event.ptMouse.x <= m_rcItem.left + m_szThumb.cx / 2 ) nValue = m_nMin;
				else nValue = m_nMin + (m_nMax - m_nMin) * (event.ptMouse.x - m_rcItem.left - m_szThumb.cx / 2 ) / (m_rcItem.right - m_rcItem.left - m_szThumb.cx);
			}
			else {
				if( event.ptMouse.y >= m_rcItem.bottom - m_szThumb.cy / 2 ) nValue = m_nMin;
				else if( event.ptMouse.y <= m_rcItem.top + m_szThumb.cy / 2  ) nValue = m_nMax;
				else nValue = m_nMin + (m_nMax - m_nMin) * (m_rcItem.bottom - event.ptMouse.y - m_szThumb.cy / 2 ) / (m_rcItem.bottom - m_rcItem.top - m_szThumb.cy);
			}
			if(m_nValue !=nValue && nValue>=m_nMin && nValue<=m_nMax)
			{
				m_nValue =nValue;
				m_pManager->SendNotify(this, DUI_MSGTYPE_VALUECHANGED);
				Invalidate();
			}
			return;
		}
		if( event.Type == UIEVENT_CONTEXTMENU )
		{
			return;
		}
		if( event.Type == UIEVENT_SCROLLWHEEL ) 
		{
			switch( LOWORD(event.wParam) ) {
		case SB_LINEUP:
			SetValue(GetValue() + GetChangeStep());
			m_pManager->SendNotify(this, DUI_MSGTYPE_VALUECHANGED);
			return;
		case SB_LINEDOWN:
			SetValue(GetValue() - GetChangeStep());
			m_pManager->SendNotify(this, DUI_MSGTYPE_VALUECHANGED);
			return;
			}