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selection: wip: update selection word-wise when initial selection was by word

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Daniel Eklöf 2021-01-02 21:20:41 +01:00
parent 482690e5fb
commit 30de262d29
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GPG key ID: 5BBD4992C116573F
5 changed files with 95 additions and 58 deletions
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139
selection.c
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@ -238,7 +238,7 @@ selection_to_text(const struct terminal *term)
void
selection_start(struct terminal *term, int col, int row,
enum selection_kind kind)
enum selection_kind kind, enum selection_semantic semantic)
{
selection_cancel(term);
@ -248,6 +248,7 @@ selection_start(struct terminal *term, int col, int row,
row, col);
term->selection.kind = kind;
term->selection.semantic = semantic;
term->selection.start = (struct coord){col, term->grid->view + row};
term->selection.end = (struct coord){-1, -1};
term->selection.ongoing = true;
@ -360,6 +361,68 @@ selection_modify(struct terminal *term, struct coord start, struct coord end)
render_refresh(term);
}
static void
find_word_boundary_left(struct terminal *term, struct coord *pos,
bool spaces_only)
{
const struct row *r = grid_row_in_view(term->grid, pos->row);
wchar_t c = r->cells[pos->col].wc;
if (!(c == 0 || !isword(c, spaces_only, term->conf->word_delimiters))) {
while (true) {
int next_col = pos->col - 1;
int next_row = pos->row;
/* Linewrap */
if (next_col < 0) {
next_col = term->cols - 1;
if (--next_row < 0)
break;
}
const struct row *row = grid_row_in_view(term->grid, next_row);
c = row->cells[next_col].wc;
if (c == 0 || !isword(c, spaces_only, term->conf->word_delimiters))
break;
pos->col = next_col;
pos->row = next_row;
}
}
}
static void
find_word_boundary_right(struct terminal *term, struct coord *pos,
bool spaces_only)
{
const struct row *r = grid_row_in_view(term->grid, pos->row);
wchar_t c = r->cells[pos->col].wc;
if (!(c == 0 || !isword(c, spaces_only, term->conf->word_delimiters))) {
while (true) {
int next_col = pos->col + 1;
int next_row = pos->row;
/* Linewrap */
if (next_col >= term->cols) {
next_col = 0;
if (++next_row >= term->rows)
break;
}
const struct row *row = grid_row_in_view(term->grid, next_row);
c = row->cells[next_col].wc;
if (c == '\0' || !isword(c, spaces_only, term->conf->word_delimiters))
break;
pos->col = next_col;
pos->row = next_row;
}
}
}
void
selection_update(struct terminal *term, int col, int row)
{
@ -434,6 +497,22 @@ selection_update(struct terminal *term, int col, int row)
}
}
if (term->selection.semantic == SELECTION_SEMANTIC_WORD) {
switch (term->selection.direction) {
case SELECTION_LEFT:
find_word_boundary_left(term, &new_end, false);
break;
case SELECTION_RIGHT:
find_word_boundary_right(term, &new_end, false);
break;
case SELECTION_UNDIR:
assert(false);
break;
}
}
/* If an end point is in the middle of a multi-column character,
* expand the selection to cover the entire character */
if (new_start.row < new_end.row ||
@ -742,59 +821,11 @@ selection_mark_word(struct seat *seat, struct terminal *term, int col, int row,
struct coord start = {col, row};
struct coord end = {col, row};
const struct row *r = grid_row_in_view(term->grid, start.row);
wchar_t c = r->cells[start.col].wc;
find_word_boundary_left(term, &start, spaces_only);
find_word_boundary_right(term, &end, spaces_only);
if (!(c == 0 || !isword(c, spaces_only, term->conf->word_delimiters))) {
while (true) {
int next_col = start.col - 1;
int next_row = start.row;
/* Linewrap */
if (next_col < 0) {
next_col = term->cols - 1;
if (--next_row < 0)
break;
}
const struct row *row = grid_row_in_view(term->grid, next_row);
c = row->cells[next_col].wc;
if (c == 0 || !isword(c, spaces_only, term->conf->word_delimiters))
break;
start.col = next_col;
start.row = next_row;
}
}
r = grid_row_in_view(term->grid, end.row);
c = r->cells[end.col].wc;
if (!(c == 0 || !isword(c, spaces_only, term->conf->word_delimiters))) {
while (true) {
int next_col = end.col + 1;
int next_row = end.row;
/* Linewrap */
if (next_col >= term->cols) {
next_col = 0;
if (++next_row >= term->rows)
break;
}
const struct row *row = grid_row_in_view(term->grid, next_row);
c = row->cells[next_col].wc;
if (c == '\0' || !isword(c, spaces_only, term->conf->word_delimiters))
break;
end.col = next_col;
end.row = next_row;
}
}
selection_start(term, start.col, start.row, SELECTION_NORMAL);
selection_start(term, start.col, start.row,
SELECTION_NORMAL, SELECTION_SEMANTIC_WORD);
selection_update(term, end.col, end.row);
selection_finalize(seat, term, serial);
}
@ -803,7 +834,7 @@ void
selection_mark_row(
struct seat *seat, struct terminal *term, int row, uint32_t serial)
{
selection_start(term, 0, row, SELECTION_NORMAL);
selection_start(term, 0, row, SELECTION_NORMAL, SELECTION_SEMANTIC_NONE);
selection_update(term, term->cols - 1, row);
selection_finalize(seat, term, serial);
}