apps/gui/scrollbar.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2005 Kevin Ferrare
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #ifndef _GUI_SCROLLBAR_H_
  23 #define _GUI_SCROLLBAR_H_
  24 #include "screen_access.h"
  25
  26 #ifdef HAVE_LCD_BITMAP
  27
  28 enum orientation {
  29     VERTICAL          = 0x0000,   /* Vertical orientation     */
  30     HORIZONTAL        = 0x0001,   /* Horizontal orientation   */
  31     INVERTFILL        = 0x0002,   /* Invert the fill direction */
  32     INNER_NOFILL      = 0x0004,   /* Do not fill inner part */
  33 #ifdef HAVE_LCD_COLOR
  34     FOREGROUND        = 0x0020,   /* Do not clear background pixels */
  35     INNER_FILL        = 0x0040,   /* Fill inner part even if FOREGROUND */
  36     INNER_BGFILL      = 0x0080,   /* Fill inner part with background
  37                                      color even if FOREGROUND */
  38     INNER_FILL_MASK   = 0x00c0,
  39 #endif
  40     DONT_CLEAR_EXCESS = 0x0100,   /* Don't clear the entire bar area */
  41 };
  42
  43 /*
  44  * Draws a scrollbar on the given screen
  45  *  - screen : the screen to put the scrollbar on
  46  *  - x : x start position of the scrollbar
  47  *  - y : y start position of the scrollbar
  48  *  - width : you won't guess =(^o^)=
  49  *  - height : I won't tell you either !
  50  *  - items : total number of items on the screen
  51  *  - min_shown : index of the starting item on the screen
  52  *  - max_shown : index of the last item on the screen
  53  *  - orientation : either VERTICAL or HORIZONTAL
  54  */
  55 extern void gui_scrollbar_draw(struct screen * screen, int x, int y,
  56                                int width, int height, int items,
  57                                int min_shown, int max_shown,
  58                                unsigned flags);
  59 extern void gui_bitmap_scrollbar_draw(struct screen * screen, struct bitmap *bm,
  60                             int x, int y,
  61                             int width, int height, int items,
  62                             int min_shown, int max_shown,
  63                             unsigned flags);
  64 extern void show_busy_slider(struct screen *s, int x, int y,
  65                             int width, int height);
  66 #endif /* HAVE_LCD_BITMAP */
  67 #endif /* _GUI_SCROLLBAR_H_ */