Extend the menu drawing function to support custom characters and
authornicm <nicm@openbsd.org>
Tue, 8 Aug 2023 07:41:04 +0000 (07:41 +0000)
committernicm <nicm@openbsd.org>
Tue, 8 Aug 2023 07:41:04 +0000 (07:41 +0000)
styles, from Alexis Hildebrandt.

usr.bin/tmux/menu.c
usr.bin/tmux/screen-write.c
usr.bin/tmux/tmux.h
usr.bin/tmux/window-client.c

index e1efa60..4c72a49 100644 (file)
@@ -1,4 +1,4 @@
-/* $OpenBSD: menu.c,v 1.49 2023/02/05 21:26:48 nicm Exp $ */
+/* $OpenBSD: menu.c,v 1.50 2023/08/08 07:41:04 nicm Exp $ */
 
 /*
  * Copyright (c) 2019 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -203,7 +203,8 @@ menu_draw_cb(struct client *c, void *data,
 
        screen_write_start(&ctx, s);
        screen_write_clearscreen(&ctx, 8);
-       screen_write_menu(&ctx, menu, md->choice, &gc);
+       screen_write_menu(&ctx, menu, md->choice, BOX_LINES_DEFAULT,
+           &grid_default_cell, &grid_default_cell, &gc);
        screen_write_stop(&ctx);
 
        for (i = 0; i < screen_size_y(&md->s); i++) {
index 43c923e..9f57565 100644 (file)
@@ -1,4 +1,4 @@
-/* $OpenBSD: screen-write.c,v 1.215 2023/07/14 19:32:59 nicm Exp $ */
+/* $OpenBSD: screen-write.c,v 1.216 2023/08/08 07:41:04 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -30,7 +30,6 @@ static void   screen_write_collect_clear(struct screen_write_ctx *, u_int,
 static void    screen_write_collect_scroll(struct screen_write_ctx *, u_int);
 static void    screen_write_collect_flush(struct screen_write_ctx *, int,
                    const char *);
-
 static int     screen_write_overwrite(struct screen_write_ctx *,
                    struct grid_cell *, u_int);
 static const struct grid_cell *screen_write_combine(struct screen_write_ctx *,
@@ -592,9 +591,46 @@ screen_write_fast_copy(struct screen_write_ctx *ctx, struct screen *src,
        }
 }
 
+/* Select character set for drawing border lines. */
+static void
+screen_write_box_border_set(enum box_lines lines, int cell_type,
+    struct grid_cell *gc)
+{
+       switch (lines) {
+        case BOX_LINES_NONE:
+               break;
+        case BOX_LINES_DOUBLE:
+                gc->attr &= ~GRID_ATTR_CHARSET;
+                utf8_copy(&gc->data, tty_acs_double_borders(cell_type));
+               break;
+        case BOX_LINES_HEAVY:
+                gc->attr &= ~GRID_ATTR_CHARSET;
+                utf8_copy(&gc->data, tty_acs_heavy_borders(cell_type));
+               break;
+        case BOX_LINES_ROUNDED:
+                gc->attr &= ~GRID_ATTR_CHARSET;
+                utf8_copy(&gc->data, tty_acs_rounded_borders(cell_type));
+               break;
+        case BOX_LINES_SIMPLE:
+                gc->attr &= ~GRID_ATTR_CHARSET;
+                utf8_set(&gc->data, SIMPLE_BORDERS[cell_type]);
+                break;
+        case BOX_LINES_PADDED:
+                gc->attr &= ~GRID_ATTR_CHARSET;
+                utf8_set(&gc->data, PADDED_BORDERS[cell_type]);
+                break;
+       case BOX_LINES_SINGLE:
+       case BOX_LINES_DEFAULT:
+               gc->attr |= GRID_ATTR_CHARSET;
+               utf8_set(&gc->data, CELL_BORDERS[cell_type]);
+               break;
+       }
+}
+
 /* Draw a horizontal line on screen. */
 void
-screen_write_hline(struct screen_write_ctx *ctx, u_int nx, int left, int right)
+screen_write_hline(struct screen_write_ctx *ctx, u_int nx, int left, int right,
+   enum box_lines lines, const struct grid_cell *border_gc)
 {
        struct screen           *s = ctx->s;
        struct grid_cell         gc;
@@ -603,13 +639,27 @@ screen_write_hline(struct screen_write_ctx *ctx, u_int nx, int left, int right)
        cx = s->cx;
        cy = s->cy;
 
-       memcpy(&gc, &grid_default_cell, sizeof gc);
+       if (border_gc != NULL)
+               memcpy(&gc, border_gc, sizeof gc);
+       else
+               memcpy(&gc, &grid_default_cell, sizeof gc);
        gc.attr |= GRID_ATTR_CHARSET;
 
-       screen_write_putc(ctx, &gc, left ? 't' : 'q');
+       if (left)
+               screen_write_box_border_set(lines, CELL_LEFTJOIN, &gc);
+       else
+               screen_write_box_border_set(lines, CELL_LEFTRIGHT, &gc);
+       screen_write_cell(ctx, &gc);
+
+       screen_write_box_border_set(lines, CELL_LEFTRIGHT, &gc);
        for (i = 1; i < nx - 1; i++)
-               screen_write_putc(ctx, &gc, 'q');
-       screen_write_putc(ctx, &gc, right ? 'u' : 'q');
+               screen_write_cell(ctx, &gc);
+
+       if (right)
+               screen_write_box_border_set(lines, CELL_RIGHTJOIN, &gc);
+       else
+               screen_write_box_border_set(lines, CELL_LEFTRIGHT, &gc);
+       screen_write_cell(ctx, &gc);
 
        screen_write_set_cursor(ctx, cx, cy);
 }
@@ -641,84 +691,52 @@ screen_write_vline(struct screen_write_ctx *ctx, u_int ny, int top, int bottom)
 
 /* Draw a menu on screen. */
 void
-screen_write_menu(struct screen_write_ctx *ctx, struct menu *menu,
-    int choice, const struct grid_cell *choice_gc)
+screen_write_menu(struct screen_write_ctx *ctx, struct menu *menu, int choice,
+    enum box_lines lines, const struct grid_cell *menu_gc,
+    const struct grid_cell *border_gc, const struct grid_cell *choice_gc)
 {
        struct screen           *s = ctx->s;
        struct grid_cell         default_gc;
        const struct grid_cell  *gc = &default_gc;
-       u_int                    cx, cy, i, j;
+       u_int                    cx, cy, i, j, width = menu->width;
        const char              *name;
 
        cx = s->cx;
        cy = s->cy;
 
-       memcpy(&default_gc, &grid_default_cell, sizeof default_gc);
+       memcpy(&default_gc, menu_gc, sizeof default_gc);
 
-       screen_write_box(ctx, menu->width + 4, menu->count + 2,
-           BOX_LINES_DEFAULT, &default_gc, menu->title);
+       screen_write_box(ctx, menu->width + 4, menu->count + 2, lines,
+           border_gc, menu->title);
 
        for (i = 0; i < menu->count; i++) {
                name = menu->items[i].name;
                if (name == NULL) {
                        screen_write_cursormove(ctx, cx, cy + 1 + i, 0);
-                       screen_write_hline(ctx, menu->width + 4, 1, 1);
-               } else {
-                       if (choice >= 0 && i == (u_int)choice && *name != '-')
-                               gc = choice_gc;
-                       screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
-                       for (j = 0; j < menu->width; j++)
-                               screen_write_putc(ctx, gc, ' ');
-                       screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
-                       if (*name == '-') {
-                               name++;
-                               default_gc.attr |= GRID_ATTR_DIM;
-                               format_draw(ctx, gc, menu->width, name, NULL,
-                                   0);
-                               default_gc.attr &= ~GRID_ATTR_DIM;
-                       } else
-                               format_draw(ctx, gc, menu->width, name, NULL,
-                                   gc == choice_gc);
-                       gc = &default_gc;
+                       screen_write_hline(ctx, width + 4, 1, 1, lines, gc);
+                       continue;
                }
-       }
 
-       screen_write_set_cursor(ctx, cx, cy);
-}
+               if (choice >= 0 && i == (u_int)choice && *name != '-')
+                       gc = choice_gc;
 
-static void
-screen_write_box_border_set(enum box_lines box_lines, int cell_type,
-    struct grid_cell *gc)
-{
-       switch (box_lines) {
-        case BOX_LINES_NONE:
-               break;
-        case BOX_LINES_DOUBLE:
-                gc->attr &= ~GRID_ATTR_CHARSET;
-                utf8_copy(&gc->data, tty_acs_double_borders(cell_type));
-               break;
-        case BOX_LINES_HEAVY:
-                gc->attr &= ~GRID_ATTR_CHARSET;
-                utf8_copy(&gc->data, tty_acs_heavy_borders(cell_type));
-               break;
-        case BOX_LINES_ROUNDED:
-                gc->attr &= ~GRID_ATTR_CHARSET;
-                utf8_copy(&gc->data, tty_acs_rounded_borders(cell_type));
-               break;
-        case BOX_LINES_SIMPLE:
-                gc->attr &= ~GRID_ATTR_CHARSET;
-                utf8_set(&gc->data, SIMPLE_BORDERS[cell_type]);
-                break;
-        case BOX_LINES_PADDED:
-                gc->attr &= ~GRID_ATTR_CHARSET;
-                utf8_set(&gc->data, PADDED_BORDERS[cell_type]);
-                break;
-       case BOX_LINES_SINGLE:
-       case BOX_LINES_DEFAULT:
-               gc->attr |= GRID_ATTR_CHARSET;
-               utf8_set(&gc->data, CELL_BORDERS[cell_type]);
-               break;
+               screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
+               for (j = 0; j < width; j++)
+                       screen_write_putc(ctx, gc, ' ');
+
+               screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
+               if (*name == '-') {
+                       default_gc.attr |= GRID_ATTR_DIM;
+                       format_draw(ctx, gc, width, name + 1, NULL, 0);
+                       default_gc.attr &= ~GRID_ATTR_DIM;
+                       continue;
+               }
+
+               format_draw(ctx, gc, width, name, NULL, gc == choice_gc);
+               gc = &default_gc;
        }
+
+       screen_write_set_cursor(ctx, cx, cy);
 }
 
 /* Draw a box on screen. */
index fae976b..1b994db 100644 (file)
@@ -1,4 +1,4 @@
-/* $OpenBSD: tmux.h,v 1.1201 2023/07/10 09:24:53 nicm Exp $ */
+/* $OpenBSD: tmux.h,v 1.1202 2023/08/08 07:41:04 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -2889,9 +2889,11 @@ void      screen_write_putc(struct screen_write_ctx *, const struct grid_cell *,
             u_char);
 void    screen_write_fast_copy(struct screen_write_ctx *, struct screen *,
             u_int, u_int, u_int, u_int);
-void    screen_write_hline(struct screen_write_ctx *, u_int, int, int);
+void    screen_write_hline(struct screen_write_ctx *, u_int, int, int,
+            enum box_lines, const struct grid_cell *);
 void    screen_write_vline(struct screen_write_ctx *, u_int, int, int);
 void    screen_write_menu(struct screen_write_ctx *, struct menu *, int,
+            enum box_lines, const struct grid_cell *, const struct grid_cell *,
             const struct grid_cell *);
 void    screen_write_box(struct screen_write_ctx *, u_int, u_int,
              enum box_lines, const struct grid_cell *, const char *);
index c6b79f8..2616103 100644 (file)
@@ -1,4 +1,4 @@
-/* $OpenBSD: window-client.c,v 1.33 2022/05/30 12:55:25 nicm Exp $ */
+/* $OpenBSD: window-client.c,v 1.34 2023/08/08 07:41:04 nicm Exp $ */
 
 /*
  * Copyright (c) 2017 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -242,7 +242,7 @@ window_client_draw(__unused void *modedata, void *itemdata,
                screen_write_cursormove(ctx, cx, cy + 2, 0);
        else
                screen_write_cursormove(ctx, cx, cy + sy - 1 - lines, 0);
-       screen_write_hline(ctx, sx, 0, 0);
+       screen_write_hline(ctx, sx, 0, 0, BOX_LINES_DEFAULT, NULL);
 
        if (at != 0)
                screen_write_cursormove(ctx, cx, cy, 0);