text: ﻿/*
   * scrollbar.c -- LCUI's scrollbar widget
   *
   * Copyright (c) 2018, Liu chao <lc-soft@live.cn> All rights reserved.
   * 
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   *   * Redistributions of source code must retain the above copyright notice,
   *     this list of conditions and the following disclaimer.
   *   * Redistributions in binary form must reproduce the above copyright
   *     notice, this list of conditions and the following disclaimer in the
   *     documentation and/or other materials provided with the distribution.
   *   * Neither the name of LCUI nor the names of its contributors may be used
   *     to endorse or promote products derived from this software without
   *     specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef LCUI_SCROLLBAR_H
  #define LCUI_SCROLLBAR_H
  
  LCUI_BEGIN_HEADER
  
  enum ScrollBarDirection {
  	SBD_HORIZONTAL,
  	SBD_VERTICAL
  };
  
  LCUI_API void ScrollBar_BindBox( LCUI_Widget w, LCUI_Widget box );
  
  LCUI_API void ScrollBar_BindTarget( LCUI_Widget w, LCUI_Widget layer );
  
  /** 获取滚动条的位置 */
  LCUI_API int ScrollBar_GetPosition( LCUI_Widget w );
  
  /** 将与滚动条绑定的内容滚动至指定位置 */
  LCUI_API int ScrollBar_SetPosition( LCUI_Widget w, int pos );
  
  /** 设置滚动条的方向 */
  LCUI_API void ScrollBar_SetDirection( LCUI_Widget w, int direction );
  
  LCUI_API void LCUIWidget_AddTScrollBar( void );
  
  LCUI_END_HEADER
  
  #endif
  