diff options
Diffstat (limited to 'examples/dte/screen-tabbar.c')
| -rw-r--r-- | examples/dte/screen-tabbar.c | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/examples/dte/screen-tabbar.c b/examples/dte/screen-tabbar.c deleted file mode 100644 index 57de14e..0000000 --- a/examples/dte/screen-tabbar.c +++ /dev/null @@ -1,176 +0,0 @@ -#include "screen.h" -#include "util/numtostr.h" -#include "util/strtonum.h" - -static size_t tab_title_width(size_t tab_number, const char *filename) -{ - return 3 + size_str_width(tab_number) + u_str_width(filename); -} - -static void update_tab_title_width(View *view, size_t tab_number) -{ - size_t w = tab_title_width(tab_number, buffer_filename(view->buffer)); - view->tt_width = w; - view->tt_truncated_width = w; -} - -static void update_first_tab_idx(Window *window) -{ - size_t max_first_idx = window->views.count; - for (size_t w = 0; max_first_idx > 0; max_first_idx--) { - const View *view = window->views.ptrs[max_first_idx - 1]; - w += view->tt_truncated_width; - if (w > window->w) { - break; - } - } - - size_t min_first_idx = window->views.count; - for (size_t w = 0; min_first_idx > 0; min_first_idx--) { - const View *view = window->views.ptrs[min_first_idx - 1]; - if (w || view == window->view) { - w += view->tt_truncated_width; - } - if (w > window->w) { - break; - } - } - - size_t idx = CLAMP(window->first_tab_idx, min_first_idx, max_first_idx); - window->first_tab_idx = idx; -} - -static void calculate_tabbar(Window *window) -{ - int total_w = 0; - for (size_t i = 0, n = window->views.count; i < n; i++) { - View *view = window->views.ptrs[i]; - if (view == window->view) { - // Make sure current tab is visible - window->first_tab_idx = MIN(i, window->first_tab_idx); - } - update_tab_title_width(view, i + 1); - total_w += view->tt_width; - } - - if (total_w <= window->w) { - // All tabs fit without truncating - window->first_tab_idx = 0; - return; - } - - // Truncate all wide tabs - total_w = 0; - int truncated_count = 0; - for (size_t i = 0, n = window->views.count; i < n; i++) { - View *view = window->views.ptrs[i]; - int truncated_w = 20; - if (view->tt_width > truncated_w) { - view->tt_truncated_width = truncated_w; - total_w += truncated_w; - truncated_count++; - } else { - total_w += view->tt_width; - } - } - - if (total_w > window->w) { - // Not all tabs fit even after truncating wide tabs - update_first_tab_idx(window); - return; - } - - // All tabs fit after truncating wide tabs - int extra = window->w - total_w; - - // Divide extra space between truncated tabs - while (extra > 0) { - BUG_ON(truncated_count == 0); - int extra_avg = extra / truncated_count; - int extra_mod = extra % truncated_count; - - for (size_t i = 0, n = window->views.count; i < n; i++) { - View *view = window->views.ptrs[i]; - int add = view->tt_width - view->tt_truncated_width; - if (add == 0) { - continue; - } - - int avail = extra_avg; - if (extra_mod) { - // This is needed for equal divide - if (extra_avg == 0) { - avail++; - extra_mod--; - } - } - if (add > avail) { - add = avail; - } else { - truncated_count--; - } - - view->tt_truncated_width += add; - extra -= add; - } - } - - window->first_tab_idx = 0; -} - -static void print_tab_title(Terminal *term, const ColorScheme *colors, const View *view, size_t idx) -{ - const char *filename = buffer_filename(view->buffer); - int skip = view->tt_width - view->tt_truncated_width; - if (skip > 0) { - filename += u_skip_chars(filename, &skip); - } - - const char *tab_number = uint_to_str((unsigned int)idx + 1); - TermOutputBuffer *obuf = &term->obuf; - bool is_active_tab = (view == view->window->view); - bool is_modified = buffer_modified(view->buffer); - bool left_overflow = (obuf->x == 0 && idx > 0); - - set_builtin_color(term, colors, is_active_tab ? BC_ACTIVETAB : BC_INACTIVETAB); - term_put_char(obuf, left_overflow ? '<' : ' '); - term_add_str(obuf, tab_number); - term_put_char(obuf, is_modified ? '+' : ':'); - term_add_str(obuf, filename); - - size_t ntabs = view->window->views.count; - bool right_overflow = (obuf->x == (obuf->width - 1) && idx < (ntabs - 1)); - term_put_char(obuf, right_overflow ? '>' : ' '); -} - -void print_tabbar(Terminal *term, const ColorScheme *colors, Window *window) -{ - TermOutputBuffer *obuf = &term->obuf; - term_output_reset(term, window->x, window->w, 0); - term_move_cursor(obuf, window->x, window->y); - calculate_tabbar(window); - - size_t i = window->first_tab_idx; - size_t n = window->views.count; - for (; i < n; i++) { - const View *view = window->views.ptrs[i]; - if (obuf->x + view->tt_truncated_width > window->w) { - break; - } - print_tab_title(term, colors, view, i); - } - - set_builtin_color(term, colors, BC_TABBAR); - - if (i == n) { - term_clear_eol(term); - return; - } - - while (obuf->x < obuf->width - 1) { - term_put_char(obuf, ' '); - } - if (obuf->x == obuf->width - 1) { - term_put_char(obuf, '>'); - } -} |