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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 by Michael Sevakis
*
* LCD scroll control functions (API to apps).
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
/* This file is meant to be #included by scroll_engine.c (twice if a remote
* is present) */
#ifndef LCDFN /* Not compiling for remote - define macros for main LCD. */
#define LCDFN(fn) lcd_ ## fn
#define LCDM(ma) LCD_ ## ma
#define MAIN_LCD
#endif
static struct scrollinfo LCDFN(scroll)[LCD_SCROLLABLE_LINES];
struct scroll_screen_info LCDFN(scroll_info) =
{
.scroll = LCDFN(scroll),
.lines = 0,
.ticks = 12,
.delay = HZ/2,
.bidir_limit = 50,
#ifdef HAVE_LCD_BITMAP
.step = 6,
#endif
#ifdef HAVE_LCD_CHARCELLS
.jump_scroll_delay = HZ/4,
.jump_scroll = 0,
#endif
};
void LCDFN(scroll_stop)(void)
{
LCDFN(scroll_info).lines = 0;
}
/* Stop scrolling line y in the specified viewport, or all lines if y < 0 */
void LCDFN(scroll_stop_viewport_line)(const struct viewport *current_vp, int line)
{
int i = 0;
while (i < LCDFN(scroll_info).lines)
{
struct viewport *vp = LCDFN(scroll_info).scroll[i].vp;
if (((vp == current_vp)) &&
((line < 0) || (LCDFN(scroll_info).scroll[i].y == line)))
{
/* If i is not the last active line in the array, then move
the last item to position i */
if ((i + 1) != LCDFN(scroll_info).lines)
{
LCDFN(scroll_info).scroll[i] =
LCDFN(scroll_info).scroll[LCDFN(scroll_info).lines-1];
}
LCDFN(scroll_info).lines--;
/* A line can only appear once, so we're done,
* unless we are clearing the whole viewport */
if (line >= 0)
return ;
}
else
{
i++;
}
}
}
/* Stop all scrolling lines in the specified viewport */
void LCDFN(scroll_stop_viewport)(const struct viewport *current_vp)
{
LCDFN(scroll_stop_viewport_line)(current_vp, -1);
}
void LCDFN(scroll_speed)(int speed)
{
LCDFN(scroll_info).ticks = scroll_tick_table[speed];
}
#if defined(HAVE_LCD_BITMAP)
void LCDFN(scroll_step)(int step)
{
LCDFN(scroll_info).step = step;
}
#endif
void LCDFN(scroll_delay)(int ms)
{
LCDFN(scroll_info).delay = ms / (HZ / 10);
}
void LCDFN(bidir_scroll)(int percent)
{
LCDFN(scroll_info).bidir_limit = percent;
}
#ifdef HAVE_LCD_CHARCELLS
void LCDFN(jump_scroll)(int mode) /* 0=off, 1=once, ..., JUMP_SCROLL_ALWAYS */
{
LCDFN(scroll_info).jump_scroll = mode;
}
void LCDFN(jump_scroll_delay)(int ms)
{
LCDFN(scroll_info).jump_scroll_delay = ms / (HZ / 10);
}
#endif
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