apps/gui/viewport.h

   1
   2 /***************************************************************************
   3  *             __________               __   ___.
   4  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   5  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   6  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   7  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   8  *                     \/            \/     \/    \/            \/
   9  * $Id$
  10  *
  11  * Copyright (C) 2008 by Jonathan Gordon
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19  * KIND, either express or implied.
  20  *
  21  ****************************************************************************/
  22
  23 #include "config.h"
  24 #include "lcd.h"
  25 #include "system.h"
  26 #include "screen_access.h"
  27
  28 /* return the number of text lines in the vp viewport */
  29 int viewport_get_nb_lines(struct viewport *vp);
  30
  31 #define VP_ERROR              0
  32 #define VP_DIMENSIONS       0x1
  33 #define VP_COLORS           0x2
  34 #define VP_SELECTIONCOLORS  0x4
  35 /* load a viewport struct from a config string.
  36    returns a combination of the above to say which were loaded ok from the string */
  37 int viewport_load_config(const char *config, struct viewport *vp);
  38
  39 void viewport_set_defaults(struct viewport *vp, enum screen_type screen);
  40
  41 /* Used to specify which screens the statusbar (SB) should be displayed on.
  42  *
  43  * The parameter is a bit OR'ed combination of the following (screen is
  44  * SCREEN_MAIN or SCREEN_REMOTE from screen_access.h):
  45  *
  46  * VP_SB_HIDE_ALL means "hide the SB on all screens"
  47  * VP_SB_ONSCREEN(screen) means "display the SB on the given screen
  48  *                              as specified by the SB setting for that screen"
  49  * VP_SB_IGNORE_SETTING(screen) means "ignore the SB setting for that screen"
  50  * VP_SB_ALLSCREENS means "VP_SB_ONSCREEN for all screens"
  51  *
  52  * In most cases, VP_SB_ALLSCREENS should be used which means display the SB
  53  * as specified by the settings.
  54  * For the WPS (and other possible exceptions) use VP_SB_IGNORE_SETTING() to
  55  * FORCE the statusbar on for the given screen (i.e it will show regardless
  56  * of the setting)
  57  *
  58  * Returns the status before the call. This value can be used to restore the
  59  * SB "displaying rules".
  60  */
  61 #define VP_SB_HIDE_ALL 0
  62 #define VP_SB_ONSCREEN(screen) BIT_N(screen)
  63 #define VP_SB_IGNORE_SETTING(screen) BIT_N(4+screen)
  64 #define VP_SB_ALLSCREENS (VP_SB_ONSCREEN(0)|VP_SB_ONSCREEN(1))
  65 int viewportmanager_set_statusbar(int enabled);
  66
  67 /* callbacks for GUI_EVENT_* events */
  68 void viewportmanager_draw_statusbars(void*data);
  69 void viewportmanager_statusbar_changed(void* data);