diff options
Diffstat (limited to 'buffer.c')
| -rw-r--r-- | buffer.c | 23 |
1 files changed, 21 insertions, 2 deletions
@@ -737,8 +737,9 @@ bool buffer_pixels_to_pos(TextBuffer *buffer, v2 pixel_coords, BufferPos *pos) { if (display_line < 0 || display_line >= buffer_display_lines(buffer)) return false; - u32 column = (u32)round(display_col + buffer->scroll_x); u32 line = (u32)floor(display_line + buffer->scroll_y); + if (line >= buffer->nlines) line = buffer->nlines - 1; + u32 column = (u32)round(display_col + buffer->scroll_x); u32 index = buffer_column_to_index(buffer, line, column); pos->line = line; pos->index = index; @@ -1087,7 +1088,6 @@ void buffer_cursor_move_to_end_of_file(TextBuffer *buffer) { buffer_cursor_move_to_pos(buffer, buffer_pos_end_of_file(buffer)); } - // insert `number` empty lines starting at index `where`. static void buffer_insert_lines(TextBuffer *buffer, u32 where, u32 number) { u32 old_nlines = buffer->nlines; @@ -1250,6 +1250,25 @@ void buffer_select_to_end_of_file(TextBuffer *buffer) { buffer_select_to_pos(buffer, buffer_pos_end_of_file(buffer)); } +// select the word the cursor is inside of +void buffer_select_word(TextBuffer *buffer) { + BufferPos start_pos = buffer->cursor_pos, end_pos = buffer->cursor_pos; + buffer_pos_move_left_words(buffer, &start_pos, 1); + buffer_pos_move_right_words(buffer, &end_pos, 1); + buffer_cursor_move_to_pos(buffer, end_pos); + buffer_select_to_pos(buffer, start_pos); +} + +// select the line the cursor is currently on +void buffer_select_line(TextBuffer *buffer) { + u32 line = buffer->cursor_pos.line; + if (line == buffer->nlines - 1) + buffer_cursor_move_to_pos(buffer, buffer_pos_end_of_line(buffer, line)); + else + buffer_cursor_move_to_pos(buffer, buffer_pos_start_of_line(buffer, line + 1)); + buffer_select_to_pos(buffer, buffer_pos_start_of_line(buffer, line)); +} + static void buffer_shorten_line(Line *line, u32 new_len) { assert(line->len >= new_len); |