devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

Added delay before starting scroll

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@938 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Björn Stenberg 2002-06-10 13:25:03 +00:00
parent 42770ea88e
commit f40a826000
1 changed files with 33 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

57
firmware/drivers/lcd.c
View file

@ -100,6 +100,8 @@
/*** generic code ***/
#define SCROLL_DELAY 10 /* number of "scroll ticks" until scroll starts */
struct scrollinfo {
char text[128];
int textlen;
@ -115,7 +117,7 @@ static char scroll_stack[0x100];
static char scroll_speed = 10; /* updates per second */
static struct scrollinfo scroll; /* only one scroll line at the moment */
static bool run_scroll = false;
static int scroll_count = 0;
#ifndef SIMULATOR
/*
@ -773,6 +775,7 @@ void lcd_puts_scroll(int x, int y, char* string )
lcd_getfontsize(font, &width, &height);
s->space = (LCD_WIDTH - xmargin - x) / width;
#endif
lcd_puts(x,y,string);
s->offset=0;
s->xpos=x;
s->startx=x;
@ -781,19 +784,19 @@ void lcd_puts_scroll(int x, int y, char* string )
strncpy(s->text,string,sizeof s->text);
s->text[sizeof s->text - 1] = 0;
run_scroll = true;
lcd_puts(s->xpos,y,s->text + s->offset);
lcd_update();
scroll_count = 1;
}
void lcd_stop_scroll(void)
{
struct scrollinfo* s = &scroll;
run_scroll = false;
/* restore scrolled row */
lcd_puts(s->startx,s->starty,s->text);
lcd_update();
if ( scroll_count ) {
struct scrollinfo* s = &scroll;
scroll_count = 0;
/* restore scrolled row */
lcd_puts(s->startx,s->starty,s->text);
lcd_update();
}
}
void lcd_scroll_speed(int speed)
@ -805,23 +808,29 @@ static void scroll_thread(void)
{
struct scrollinfo* s = &scroll;
while ( 1 ) {
if ( !run_scroll ) {
if ( !scroll_count ) {
yield();
continue;
}
lcd_puts(s->xpos,s->starty,s->text + s->offset);
if ( s->textlen - s->offset < s->space )
lcd_puts(s->startx + s->textlen - s->offset, s->starty," ");
lcd_update();
if ( s->xpos > s->startx )
s->xpos--;
else
s->offset++;
if (s->offset > s->textlen) {
s->offset=0;
s->xpos = s->space-1;
if ( scroll_count < SCROLL_DELAY )
scroll_count++;
else {
lcd_puts(s->xpos,s->starty,s->text + s->offset);
debugf("puts(%2d,%s)\n",s->xpos,s->text+s->offset);
if ( s->textlen - s->offset < s->space )
lcd_puts(s->startx + s->textlen - s->offset, s->starty," ");
lcd_update();
if ( s->xpos > s->startx )
s->xpos--;
else
s->offset++;
if (s->offset > s->textlen) {
scroll_count = SCROLL_DELAY; /* prevent wrap */
s->offset=0;
s->xpos = s->space;
}
}
sleep(HZ/scroll_speed);
}