File paps-header_features.patch of Package paps

---
 src/paps.1  |   12 ++++++++++++
 src/paps.cc |   28 +++++++++++++++++++++-------
 2 files changed, 33 insertions(+), 7 deletions(-)

--- a/src/paps.1
+++ b/src/paps.1
@@ -300,6 +300,18 @@ Sets the formatting for the center of th
 Use \fItext\fR as the title string for page header. By default the input
 filename or "stdin" is used.
 .TP
+.B \-\-header\-font=desc
+Set the header font description. Default is Monospace Bold 12.
+.TP
+.B \-\-header\-date\-format=fmt
+Set the header date format. Default is %c (see
+.BR strftime (3)).
+.TP
+.B \-\-header\-rule\-thickness=val
+Set the thickness of the header separation rule. Default is 0 (i.e. as thin as possible).
+Note that this depends on
+.BR \-\-separation\-lines .
+.TP
 .B \-\-markup
 Interpret input as pango markup. Pango Text Attribute Markup Language allows
 marking parts of the text with tags defining additional attributes such as font
--- a/src/paps.cc
+++ b/src/paps.cc
@@ -71,6 +71,8 @@ using namespace fmt;
 #define DEFAULT_FONT_SIZE       "12"
 #define HEADER_FONT_FAMILY      "Monospace Bold"
 #define HEADER_FONT_SCALE       "12"
+#define HEADER_DATE_FORMAT      "%c"
+#define HEADER_RULE_THICKNESS   0.1
 #define MAKE_FONT_NAME(f,s)     f " " s
 
 /*
@@ -155,6 +157,8 @@ struct PageLayout {
   char* footer_center = nullptr;
   char* footer_right = nullptr;
   string header_font_desc;
+  string header_date_format;
+  gdouble header_rule_thickness;
   gdouble lpi;
   gdouble cpi;
   dict_t document_info;
@@ -234,7 +238,7 @@ copy_pango_parse_enum (GType       type,
 		   char      **possible_values);
 
 static char* get_encoding(void);
-string get_date();
+string get_date(PageLayout *page_layout);
 string fn_basename(const string& filename);
 
 FILE *output_fh;
@@ -581,6 +585,9 @@ int main(int argc, char *argv[])
   int gutter_width = 40;
   gboolean do_fatal_warnings = false;
   const gchar *font = MAKE_FONT_NAME (DEFAULT_FONT_FAMILY, DEFAULT_FONT_SIZE);
+  const gchar *header_font_desc = MAKE_FONT_NAME (HEADER_FONT_FAMILY, HEADER_FONT_SCALE);
+  const gchar *header_date_format = HEADER_DATE_FORMAT;
+  gdouble header_rule_thickness = HEADER_RULE_THICKNESS;
   gchar *encoding = nullptr;
   gchar *output = nullptr;
   gchar *htitle = nullptr;
@@ -597,6 +604,12 @@ int main(int argc, char *argv[])
      N_("Landscape output. (Default: portrait)"), nullptr},
     {"columns", 0, 0, G_OPTION_ARG_INT, &num_columns,
      N_("Number of columns output. (Default: 1)"), "NUM"},
+    {"header-font", 0, 0, G_OPTION_ARG_STRING, &header_font_desc,
+     N_("Set the header font description. (Default: Monospace Bold 12)"), "DESC"},
+    {"header-date-format", 0, 0, G_OPTION_ARG_STRING, &header_date_format,
+     N_("Set the header date format. (Default: %%c)"), "DESC"},
+    {"header-rule-thickness", 0, 0, G_OPTION_ARG_DOUBLE, &header_rule_thickness,
+     N_("Set the thickness of the header separation rule. (Default: 0 (i.e. as thin as possible))"), "DESC"},
     {"font", 0, 0, G_OPTION_ARG_STRING, &font,
      N_("Set font. (Default: Monospace 12)"), "DESC"},
     {"output", 'o', 0, G_OPTION_ARG_STRING, &output,
@@ -686,7 +699,6 @@ int main(int argc, char *argv[])
   double page_height = paper_sizes[0].height;
   int do_tumble = -1;   /* -1 means not initialized */
   int do_duplex = -1;
-  const gchar *header_font_desc = MAKE_FONT_NAME (HEADER_FONT_FAMILY, HEADER_FONT_SCALE);
   const gchar *filename_in;
   gchar *text;
   /* int header_sep = 20; */
@@ -908,6 +920,8 @@ int main(int argc, char *argv[])
   else
      page_layout.title = fn_basename(filename_in);
   page_layout.header_font_desc = header_font_desc;
+  page_layout.header_date_format = header_date_format;
+  page_layout.header_rule_thickness = header_rule_thickness;
 
   /* calculate x-coordinate scale */
   if (page_layout.cpi > 0.0L)
@@ -1641,7 +1655,7 @@ draw_line_to_page(cairo_t *cr,
  * Provide date string from current locale converted to UTF-8.
  */
 string
-get_date()
+get_date(PageLayout *page_layout)
 {
   time_t t = time(nullptr);
   GIConv cvh = nullptr;
@@ -1653,7 +1667,7 @@ get_date()
   if (date_utf8 == nullptr) {
     char date[256];
     t = time(nullptr);
-    strftime(date, sizeof(date), "%c", localtime(&t));
+    strftime(date, sizeof(date), page_layout->header_date_format.c_str(), localtime(&t));
 
     cvh = g_iconv_open("UTF-8", get_encoding());
     if (cvh == (GIConv)-1) {
@@ -1715,7 +1729,7 @@ draw_page_header_line_to_page(cairo_t
                   "<span font_desc=\"{}\">{}</span>\n"
                   "<span font_desc=\"{}\">{}</span>",
                   page_layout->header_font_desc,
-                  get_date().c_str(),
+                  get_date(page_layout).c_str(),
                     page_layout->header_font_desc,
                     page_layout->title.c_str(),
                     page_layout->header_font_desc,
@@ -1739,7 +1753,7 @@ draw_page_header_line_to_page(cairo_t
       if (page_layout->header_left)
         header_parts[0]=page_layout->header_left;
       else
-        header_parts[0]=get_date();
+        header_parts[0]=get_date(page_layout);
     
       if (page_layout->header_center)
         header_parts[1] = page_layout->header_center;
@@ -1824,7 +1838,7 @@ draw_page_header_line_to_page(cairo_t
       line_pos += logical_rect.height/2.0/PANGO_SCALE;
       cairo_move_to(cr, page_layout->left_margin, line_pos);
       cairo_line_to(cr,page_layout->page_width - page_layout->right_margin, line_pos);
-      cairo_set_line_width(cr,0.1); // TBD
+      cairo_set_line_width(cr,  page_layout->header_rule_thickness); // TBD
       cairo_stroke(cr);
     }
 
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