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Bidirectional scroll ala recorder.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3080 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Mats Lidell 2003-01-14 10:45:57 +00:00
parent fd07b6932f
commit 4c7f70fe9a
2 changed files with 8 additions and 2 deletions
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8
firmware/drivers/lcd-player.c
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@ -79,6 +79,7 @@ static char scroll_speed = 8; /* updates per second */
static int scroll_delay = HZ/2; /* delay before starting scroll */
static char scroll_spacing = 3; /* spaces between end and start of text */
static bool allow_bidirectional_scrolling = true;
static int bidir_limit = 50; /* percent */
static struct scrollinfo scroll[SCROLLABLE_LINES];
@ -442,6 +443,11 @@ void lcd_init (void)
sizeof(scroll_stack), scroll_name);
}
void lcd_bidir_scroll(int percent)
{
bidir_limit = percent;
}
void lcd_puts_scroll(int x, int y, unsigned char* string )
{
struct scrollinfo* s;
@ -463,7 +469,7 @@ void lcd_puts_scroll(int x, int y, unsigned char* string )
s->direction=+1;
strncpy(s->text,string,sizeof s->text);
s->turn_offset=-1;
if (allow_bidirectional_scrolling && s->textlen + x > 11+4) {
if (bidir_limit && (s->textlen < ((11-x)*(100+bidir_limit))/100)) {
s->turn_offset=s->textlen+x-11;
} else {
for (i=0; i<scroll_spacing && s->textlen<(int)sizeof(s->text); i++) {