shithub: orca

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Add '+' ruler markers to tui

--- a/tui_main.c

+++ b/tui_main.c

@@ -37,17 +37,27 @@

 }

 void draw_debug_field(WINDOW* win, int win_y, int win_x, Glyph const* gbuffer,

-                      Usz height, Usz width) {

+                      Usz height, Usz width, Usz ruler_spacing_y,

+                      Usz ruler_spacing_x) {

   enum { Bufcount = 4096 };

   if (width > Bufcount)

     return;

   chtype buffer[Bufcount];

+  bool use_rulers = ruler_spacing_y != 0 && ruler_spacing_x != 0;

   for (Usz y = 0; y < height; ++y) {

     Glyph const* gline = gbuffer + y * width;

+    bool use_y_ruler = use_rulers && y % ruler_spacing_y == 0;

     for (Usz x = 0; x < width; ++x) {

       Glyph g = gline[x];

-      int attr = g == '.' ? Tattr_boring_glyph : Tattr_default_bold;

-      buffer[x] = (chtype)(gline[x] | attr);

+      int attr;

+      if (g == '.') {

+        attr = Tattr_boring_glyph;

+        if (use_y_ruler && x % ruler_spacing_x == 0)

+          g = '+';

+      } else {

+        attr = Tattr_default_bold;

+      }

+      buffer[x] = (chtype)(g | attr);

     }

     wmove(win, win_y + (int)y, (int)win_x);

     waddchnstr(win, buffer, (int)width);

@@ -159,7 +169,8 @@

     (void)term_height;

     (void)term_width;

     // clear();

-    draw_debug_field(stdscr, 0, 0, field.buffer, field.height, field.width);

+    draw_debug_field(stdscr, 0, 0, field.buffer, field.height, field.width, 8,

+                     8);

     draw_ui_bar(stdscr, term_height - 1, 0, input_file, tick_num);

     //refresh();