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struct Cursor {
int x;
int y;
Window &w;
Cursor(Window &w) : x(0), y(0), w(w) {}
char element() {
return w.view[x + y * w.width];
}
void move_left() {
if (x == 0) {
if (y != 0) {
y--;
x = w.line_ends[y];
}
} else {
x--;
}
}
void move_right() {
if (element()) {
if (element() == '\n') {
x = 0;
y++;
} else {
x++;
}
}
}
void move_up() {
}
void move_down() {
}
void update() {
w.set_cursor(x, y);
}
};
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