int lcd_getstringsize(const unsigned char *str, int *w, int *h)
{
return font_getstringsize(str, w, h, current_vp->font);
}
bool logfdisplay(void)
{
int action;
int w, h, i, index;
int fontnr;
int cur_x, cur_y, delta_y, delta_x;
struct font* font;
int user_index;/* user_index will be number of the first line to display (warning: line!=logf entry) */
char buf[2];
fontnr = lcd_getfont();
font = font_get(fontnr);
/* get the horizontal size of each line */
font_getstringsize("A", NULL, &delta_y, fontnr);
buf[1] = '\0';
w = LCD_WIDTH;
h = LCD_HEIGHT;
/* start at the end of the log */
user_index = compute_nb_lines(w, font) - h/delta_y -1; /* if negative, will be set 0 to zero later */
do {
lcd_clear_display();
if(user_index < 0)
user_index = 0;
if(logfwrap)
i = logfindex;
else
i = 0;
index = 0;
cur_x = 0;
cur_y = 0;
/* nothing to print ? */
if(logfindex == 0 && !logfwrap)
goto end_print;
do {
if(logfbuffer[i] == '\0')
{
/* should be display a newline ? */
if(index >= user_index)
cur_y += delta_y;
cur_x = 0;
index++;
}
else
{
/* does character fit on this line ? */
delta_x = font_get_width(font, logfbuffer[i]);
if(cur_x + delta_x > w)
{
/* should be display a newline ? */
if(index >= user_index)
cur_y += delta_y;
cur_x = 0;
index++;
}
/* should we print character ? */
if(index >= user_index)
{
buf[0] = logfbuffer[i];
lcd_putsxy(cur_x, cur_y, buf);
}
/* update pointer */
cur_x += delta_x;
}
/* did we fill the screen ? */
if(cur_y > h)
break;
i++;
if(i >= MAX_LOGF_SIZE)
i = 0;
} while(i != logfindex);
end_print:
lcd_update();
action = get_action(CONTEXT_STD, HZ);
switch( action )
{
case ACTION_STD_NEXT:
case ACTION_STD_NEXTREPEAT:
user_index++;
break;
case ACTION_STD_PREV:
case ACTION_STD_PREVREPEAT:
user_index--;
break;
case ACTION_STD_OK:
user_index = 0;
break;
#ifdef HAVE_TOUCHSCREEN
case ACTION_TOUCHSCREEN:
{
short x, y;
static int prev_y;
action = action_get_touchscreen_press(&x, &y);
if(action & BUTTON_REL)
prev_y = 0;
else
{
if(prev_y != 0)
user_index += (prev_y - y) / delta_y;
prev_y = y;
}
}
#endif
default:
break;
}
} while(action != ACTION_STD_CANCEL);
return false;
}
static void displayremote(void)
{
/* TODO: we should have a debug option that enables/disables this! */
int w, h, i;
int fontnr;
int cur_x, cur_y, delta_y, delta_x;
struct font* font;
int nb_lines;
char buf[2];
/* Memorize the pointer to the beginning of the last ... lines
I assume delta_y >= 6 to avoid wasting memory and allocating memory dynamically
I hope there is no font with height < 6 ! */
const int NB_ENTRIES=LCD_REMOTE_HEIGHT / 6;
int line_start_ptr[NB_ENTRIES];
fontnr = lcd_getfont();
font = font_get(fontnr);
/* get the horizontal size of each line */
font_getstringsize("A", NULL, &delta_y, fontnr);
/* font too small ? */
if(delta_y < 6)
return;
/* nothing to print ? */
if(logfindex == 0 && !logfwrap)
return;
w = LCD_REMOTE_WIDTH;
h = LCD_REMOTE_HEIGHT;
nb_lines = 0;
if(logfwrap)
i = logfindex;
else
i = 0;
cur_x = 0;
line_start_ptr[0] = i;
do
{
if(logfbuffer[i] == '\0')
{
line_start_ptr[++nb_lines % NB_ENTRIES] = i+1;
cur_x = 0;
}
else
{
/* does character fit on this line ? */
delta_x = font_get_width(font, logfbuffer[i]);
if(cur_x + delta_x > w)
{
cur_x = 0;
line_start_ptr[++nb_lines % NB_ENTRIES] = i;
}
/* update pointer */
cur_x += delta_x;
}
i++;
if(i >= MAX_LOGF_SIZE)
i = 0;
} while(i != logfindex);
lcd_remote_clear_display();
i = line_start_ptr[ MAX(nb_lines - h / delta_y, 0) % NB_ENTRIES];
cur_x = 0;
cur_y = 0;
buf[1] = '\0';
do {
if(logfbuffer[i] == '\0')
{
cur_y += delta_y;
cur_x = 0;
}
else
{
/* does character fit on this line ? */
delta_x = font_get_width(font, logfbuffer[i]);
if(cur_x + delta_x > w)
{
cur_y += delta_y;
cur_x = 0;
}
buf[0] = logfbuffer[i];
lcd_remote_putsxy(cur_x, cur_y, buf);
cur_x += delta_x;
}
i++;
if(i >= MAX_LOGF_SIZE)
i = 0;
} while(i != logfindex);
lcd_remote_update();
}
