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selection: ensure start < end in finalize

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When the selection is finalized, swap start/end if necessary, to make
sure start <= end.
This commit is contained in:
Daniel Eklöf 2019-08-05 20:15:18 +02:00
parent a82f12dd2b
commit 1e08d93528
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GPG key ID: 5BBD4992C116573F
2 changed files with 27 additions and 30 deletions
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40
render.c
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@ -92,34 +92,26 @@ draw_strikeout(const struct terminal *term, cairo_t *cr, const struct font *font
static bool
coord_is_selected(const struct terminal *term, int col, int row)
{
if (term->selection.start.col != -1 && term->selection.end.col != -1) {
const struct coord *start = &term->selection.start;
const struct coord *end = &term->selection.end;
if (term->selection.start.col == -1 || term->selection.end.col == -1)
return false;
if (end->row < start->row || (end->row == start->row && end->col < start->col)) {
const struct coord *tmp = start;
start = end;
end = tmp;
}
const struct coord *start = &term->selection.start;
const struct coord *end = &term->selection.end;
assert(start->row <= end->row);
assert(start->row <= end->row);
if (start->row == end->row) {
return (term->grid->view + row == start->row &&
col >= start->col &&
col <= end->col);
} else {
if (term->grid->view + row == start->row)
return col >= start->col;
else if (term->grid->view + row == end->row)
return col <= end->col;
else
return (term->grid->view + row >= start->row &&
term->grid->view + row <= end->row);
}
row += term->grid->view;
if (start->row == end->row) {
return row == start->row && col >= start->col && col <= end->col;
} else {
if (row == start->row)
return col >= start->col;
else if (row == end->row)
return col <= end->col;
else
return row >= start->row && row <= end->row;
}
return false;
}
static void