diff options
Diffstat (limited to 'buffer.c')
| -rw-r--r-- | buffer.c | 22 |
1 files changed, 13 insertions, 9 deletions
@@ -786,27 +786,26 @@ static bool buffer_clip_rect(TextBuffer *buffer, Rect *r) { } -// if the cursor is offscreen, this will scroll to make it onscreen. -static void buffer_scroll_to_cursor(TextBuffer *buffer) { +void buffer_scroll_to_pos(TextBuffer *buffer, BufferPos pos) { Settings const *settings = buffer_settings(buffer); - double cursor_line = buffer->cursor_pos.line; - double cursor_col = buffer_index_to_column(buffer, (u32)cursor_line, buffer->cursor_pos.index); + double line = pos.line; + double col = buffer_index_to_column(buffer, pos.line, pos.index); double display_lines = buffer_display_lines(buffer); double display_cols = buffer_display_cols(buffer); double scroll_x = buffer->scroll_x, scroll_y = buffer->scroll_y; double scrolloff = settings->scrolloff; - // scroll left if cursor is off screen in that direction - double max_scroll_x = cursor_col - scrolloff; + // scroll left if pos is off screen in that direction + double max_scroll_x = col - scrolloff; scroll_x = mind(scroll_x, max_scroll_x); // scroll right - double min_scroll_x = cursor_col - display_cols + scrolloff; + double min_scroll_x = col - display_cols + scrolloff; scroll_x = maxd(scroll_x, min_scroll_x); // scroll up - double max_scroll_y = cursor_line - scrolloff; + double max_scroll_y = line - scrolloff; scroll_y = mind(scroll_y, max_scroll_y); // scroll down - double min_scroll_y = cursor_line - display_lines + scrolloff; + double min_scroll_y = line - display_lines + scrolloff; scroll_y = maxd(scroll_y, min_scroll_y); buffer->scroll_x = scroll_x; @@ -814,6 +813,11 @@ static void buffer_scroll_to_cursor(TextBuffer *buffer) { buffer_correct_scroll(buffer); // it's possible that min/max_scroll_x/y go too far } +// if the cursor is offscreen, this will scroll to make it onscreen. +void buffer_scroll_to_cursor(TextBuffer *buffer) { + buffer_scroll_to_pos(buffer, buffer->cursor_pos); +} + // scroll so that the cursor is in the center of the screen void buffer_center_cursor(TextBuffer *buffer) { double cursor_line = buffer->cursor_pos.line; |