/*********************************************************************
* Put one character onto the screen :
* CR moves cursor to column zero of current line.
* NL moves to next line, scrolling if ncessary, and implies CR.
*********************************************************************/
void
lcd_putc(char c) {
if ( c == '\r' ) { /* CR - move cursor to col 0 */
lcd_setx(lcd_x=0);
return;
} else if ( c == '\n' ) { /* NL - move to next line */
if ( ++lcd_y >= lcd_lines ) {
lcd_scroll();
lcd_y = lcd_lines-1;
}
lcd_move(lcd_y,lcd_x=0);
return;
}
if ( lcd_x + 1 > lcd_cols ) { /* Past column end? */
if ( ++lcd_y >= lcd_lines ) {
lcd_scroll(); /* Scroll if necessary */
lcd_y = lcd_lines-1;
}
lcd_move(lcd_y,lcd_x=0);
}
lcd_putraw(c);
lcd_buf[lcd_y][lcd_x++] = c;
}
void lcd_putc(int c)
{
// let's process ASCII as fast as possible
if(c < 127 && c >= 32) {
lcd_fb_write_raw(&(lcd_chars6x8[c - 32][0]), 6);
}
else {
// cyrillic is a bit slower
if(c >= 0xC0 && c <= 0xFF)
// cyrillic starts in font array at index 95
lcd_fb_write_raw(&(lcd_chars6x8[c - 0xC0 + 95][0]), 6);
else
// handle control characters
switch(c)
{
case '\n':
// new line: new line, then do carriage return
if(++lcd_state.current_line >= 8)
// scroll or wrap, depending if we have a framebuffer and scrolling state
if(lcd_state.framebuffer != NULL && (lcd_state.flags & LCD_FLAG_SCROLL)) {
lcd_state.current_line = 7;
lcd_scroll();
}
case '\r':
// carriage return: move cursor to beginning of current line
lcd_set_cursor(lcd_state.current_line, 0);
return;
case '\f':
// form feed: clear screen
lcd_clear();
return;
default:
// non-printable character. skip it
return;
}
}
// advance cursor/scroll
if((lcd_state.current_column += 6) >= 96) {
// new line
lcd_state.current_column = 0;
if(++lcd_state.current_line >= 8) {
// scroll or wrap, depending if we have a framebuffer and scrolling state
if(lcd_state.framebuffer != NULL && (lcd_state.flags & LCD_FLAG_SCROLL)) {
lcd_state.current_line = 7;
lcd_scroll();
}
else
lcd_set_cursor(0, 0);
}
}
}
int main(void)
{
while(1) {
print("Hello");
delay_ms(200);
lcd_scroll(LCD_RIGHT, 3, 200);
clear();
lcd_goto_xy(3, 1);
print("Hello");
delay_ms(200);
lcd_scroll(LCD_LEFT, 3, 200);
clear();
}
return(0);
}
static void console_crlf(console_t* const console) {
const uint_fast16_t line_height = console->lcd->font->line_height;
console->x = 0;
console->y += line_height;
const int32_t y_excess = console->y + console->lcd->font->line_height - console->lcd->scroll.height;
if( y_excess > 0 ) {
lcd_scroll(console->lcd, -line_height);
console->y -= y_excess;
const lcd_color_t prior_background = lcd_set_background(console->lcd, console->background);
lcd_clear_rectangle(console->lcd, 0, lcd_scroll_area_y(console->lcd, console->y), console->lcd->size.w, line_height);
lcd_set_background(console->lcd, prior_background);
}
}
int main(void) {
//スクロールの初期設定
SCROLL_FACTORY settings;
strcpy(settings.string, "Kisarazu-KNCT");
settings.speed = 250;
settings.x = 0;
settings.y = 1;
settings.direction = RIGHT;
lcd_init();
lcd_scroll(settings);
return 0;
}
void
lcd_putline(uint8_t row, char *in)
{
if(row == 0) { // Title
drawtext(in, TITLE_LINECHARS,
TITLE_FONT, TITLE_FONT_WIDTH,
0, 0, TITLE_FONT_HEIGHT);
} else if(row < 9) { // Body, directly adressed
row--;
drawtext(in, BODY_LINECHARS,
BODY_FONT, BODY_FONT_WIDTH,
lcd_scroll_y+BODY_FONT_HEIGHT*row,
0, BODY_FONT_HEIGHT);
} else if(row == 9 || row == 10) { // Scrolling
if(row == 9) { // Up
row = BODY_LINES-1;
} else { // Down
row = 0;
}
#define CHUNK 1 // 2 lines of offscrean area,
// but only usable for up
uint8_t dpyoffset = (row? (row+1)*BODY_FONT_HEIGHT : 0);
uint8_t fontoffset = (row ? 0 : BODY_FONT_HEIGHT-1);
uint8_t counter = 0;
// Scroll speed is ca 12-14 lines/sec
while(counter != BODY_FONT_HEIGHT) {
lcd_scroll(row == 0 ? -CHUNK : CHUNK);
drawtext(in, BODY_LINECHARS,
BODY_FONT, BODY_FONT_WIDTH,
lcd_scroll_y+dpyoffset, fontoffset, CHUNK);
fontoffset += (row ? CHUNK : -CHUNK);
counter += CHUNK;
}
}
}
/*
Scroll a text horizontally.
Number of rows depend on font height.
*/
void
scroll(int start_row, int start_col, int width, int offset){
lcd_scroll(start_row, start_col, width, font_height, offset);
};
