Method PaintRail

DuiLib/Control/UIScrollBar.cpp:941–985

	}

	void CScrollBarUI::PaintRail(HDC hDC)
	{
		if( m_rcThumb.left == 0 && m_rcThumb.top == 0 && m_rcThumb.right == 0 && m_rcThumb.bottom == 0 ) return;
		if( !IsEnabled() ) m_uThumbState |= UISTATE_DISABLED;
		else m_uThumbState &= ~ UISTATE_DISABLED;

		m_sImageModify.Empty();
		if( !m_bHorizontal ) {
			m_sImageModify.SmallFormat(_T("dest='%d,%d,%d,%d'"), m_rcThumb.left - m_rcItem.left, \
				(m_rcThumb.top + m_rcThumb.bottom) / 2 - m_rcItem.top - m_cxyFixed.cx / 2, \
				m_rcThumb.right - m_rcItem.left, \
				(m_rcThumb.top + m_rcThumb.bottom) / 2 - m_rcItem.top + m_cxyFixed.cx - m_cxyFixed.cx / 2);
		}
		else {
			m_sImageModify.SmallFormat(_T("dest='%d,%d,%d,%d'"), \
				(m_rcThumb.left + m_rcThumb.right) / 2 - m_rcItem.left - m_cxyFixed.cy / 2, \
				m_rcThumb.top - m_rcItem.top, \
				(m_rcThumb.left + m_rcThumb.right) / 2 - m_rcItem.left + m_cxyFixed.cy - m_cxyFixed.cy / 2, \
				m_rcThumb.bottom - m_rcItem.top);
		}

		if( (m_uThumbState & UISTATE_DISABLED) != 0 ) {
			if( !m_sRailDisabledImage.IsEmpty() ) {
				if( !DrawImage(hDC, (LPCTSTR)m_sRailDisabledImage, (LPCTSTR)m_sImageModify) ) m_sRailDisabledImage.Empty();
				else return;
			}
		}
		else if( (m_uThumbState & UISTATE_PUSHED) != 0 ) {
			if( !m_sRailPushedImage.IsEmpty() ) {
				if( !DrawImage(hDC, (LPCTSTR)m_sRailPushedImage, (LPCTSTR)m_sImageModify) ) m_sRailPushedImage.Empty();
				else return;
			}
		}
		else if( (m_uThumbState & UISTATE_HOT) != 0 ) {
			if( !m_sRailHotImage.IsEmpty() ) {
				if( !DrawImage(hDC, (LPCTSTR)m_sRailHotImage, (LPCTSTR)m_sImageModify) ) m_sRailHotImage.Empty();
				else return;
			}
		}

		if( !m_sRailNormalImage.IsEmpty() ) {
			if( !DrawImage(hDC, (LPCTSTR)m_sRailNormalImage, (LPCTSTR)m_sImageModify) ) m_sRailNormalImage.Empty();
			else return;
		}
	}
}