void K3NGdisplay::update(){
// update the screen with changes that are pending in screen_buffer_pending
for (int x = 0;x < (display_columns*display_rows);x++){
if (screen_buffer_live[x] != screen_buffer_pending[x]){ // do we have a new character to put on the screen ?
lcd.setCursor(Xposition(x),Yposition(x));
if (screen_buffer_attributes_pending[x] & ATTRIBUTE_BLINK){ // does this character have the blink attribute
if (current_blink_state){
lcd.print(screen_buffer_pending[x]);
} else {
lcd.print(' ');
}
} else {
lcd.print(screen_buffer_pending[x]);
}
screen_buffer_live[x] = screen_buffer_pending[x];
screen_buffer_attributes_live[x] = screen_buffer_attributes_pending[x];
} else { // not a new character, do we have live character on the screen to blink?
if (last_blink_state != current_blink_state){
if (screen_buffer_attributes_live[x] & ATTRIBUTE_BLINK){
lcd.setCursor(Xposition(x),Yposition(x));
if (current_blink_state){
lcd.print(screen_buffer_live[x]);
} else {
lcd.print(' ');
}
}
}
}
}
last_blink_state = current_blink_state;
}
void xapi_swinpos(void *d) {
int x,y;
char *t0= (char*)d;
char *t1;
x=0;y=0;
if ((t1=strchr(t0,'x')) && ++t1) {
x=atoi(t0);
y=atoi(t1);
remote_printf(100,"positioning window to %ix%i",x,y);
Xposition(x,y);
} else {
remote_printf(421,"invalid position argument (example 200x100)");
}
}
void K3NGdisplay::redraw(){
// redraw the screen with the current screen_buffer_live
for (int x = 0;x < (display_columns*display_rows);x++){
lcd.setCursor(Xposition(x),Yposition(x));
if (screen_buffer_attributes_live[x] & ATTRIBUTE_BLINK){ // does this character have the blink attribute
if (current_blink_state){
lcd.print(screen_buffer_live[x]);
} else {
lcd.print(' ');
}
} else {
lcd.print(screen_buffer_live[x]);
}
}
}
