Implemented rudimentary 'page down' key support, which moves the cursor to the first character of the next line

master
Aadhavan Srinivasan 2 years ago
parent 4d4f0f16c8
commit 9524ba4df9

@ -82,6 +82,26 @@ void buffer_left(Buffer* buffer) {
}
}
void page_down_handler(Buffer* buffer) {
buffer_right(buffer); /* I must advance the cursor at least
once, so this hardcoded statement is fine. */
while (*(buffer->start - 1) != '\n') {
buffer_right(buffer);
}
/* You would think that I need to call 'buffer_right' once
more, to advance the cursor onto the next line. In fact, if
you think about it, the place where the cursor (the rectangle)
is, is actually the character _after_ the gap. Therefore, by
advancing the start to the newline character, the character
after the gap (i.e. the cursor) will automatically be moved to
the next line. */
}
void init_curses() {
initscr();
noecho();
@ -123,8 +143,6 @@ int main(int argc, char** argv) {
}
}
init_curses();
int ch;
@ -184,8 +202,8 @@ int main(int argc, char** argv) {
exception here), but that's a problem for another day. */
break;
case KEY_DOWN:
case KEY_NPAGE:
page_down_handler(buffer);
break;
default:

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