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tweaks: add a condition, so that two ifs can be elided

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Now all functions that are relevant only to softwrapping
get called only when softwrapping is on.

This also allows to elide an intermediate function call.
This commit is contained in:
Benno Schulenberg 2020-05-13 12:29:44 +02:00
parent e8e9b8ad82
commit 78bfc9223a
2 changed files with 7 additions and 13 deletions
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4
src/move.c
View File

@ -556,8 +556,8 @@ void do_scroll_down(void)
if (editwinrows > 1 && (openfile->edittop->next != NULL
#ifndef NANO_TINY
|| chunk_for(openfile->firstcolumn, openfile->edittop) <
number_of_chunks_in(openfile->edittop)
|| (ISSET(SOFTWRAP) && (number_of_chunks_in(openfile->edittop) >
chunk_for(openfile->firstcolumn, openfile->edittop)))
#endif
))
edit_scroll(FORWARD);

16
src/winio.c
View File

@ -3098,31 +3098,25 @@ size_t get_chunk_and_edge(size_t column, linestruct *line, size_t *leftedge)
* relative to the first row (zero-based). */
size_t chunk_for(size_t column, linestruct *line)
{
if (ISSET(SOFTWRAP))
return get_chunk_and_edge(column, line, NULL);
else
return 0;
return get_chunk_and_edge(column, line, NULL);
}
/* Return the leftmost column of the softwrapped chunk of the given line that
* column is on. */
size_t leftedge_for(size_t column, linestruct *line)
{
if (ISSET(SOFTWRAP)) {
size_t leftedge;
size_t leftedge;
get_chunk_and_edge(column, line, &leftedge);
get_chunk_and_edge(column, line, &leftedge);
return leftedge;
} else
return 0;
return leftedge;
}
/* Return the row of the last softwrapped chunk of the given line, relative to
* the first row (zero-based). */
size_t number_of_chunks_in(linestruct *line)
{
return chunk_for((size_t)-1, line);
return get_chunk_and_edge((size_t)-1, line, NULL);
}
/* Ensure that firstcolumn is at the starting column of the softwrapped chunk