From 55765045c806009ef64d86a5cb5fdc6588499589 Mon Sep 17 00:00:00 2001
From: Sam Hocevar <sam@hocevar.net>
Date: Thu, 16 Nov 2006 15:01:31 +0000
Subject: [PATCH]   * Support for CUCUL_DEFAULT and CUCUL_TRANSPARENT in the
 HTML exporters.   * Updated export test accordingly.

---
 cucul/export.c | 33 +++++++++++++++++++++++----------
 test/export.c  | 16 ++++++++++++++--
 2 files changed, 37 insertions(+), 12 deletions(-)

diff --git a/cucul/export.c b/cucul/export.c
index ded5a67..bea3950 100644
--- a/cucul/export.c
+++ b/cucul/export.c
@@ -389,10 +389,13 @@ static void *export_html(cucul_canvas_t *cv, unsigned long int *bytes)
 
         for(x = 0; x < cv->width; x += len)
         {
-            cur += sprintf(cur, "<span style=\"color:#%.03x;"
-                                "background-color:#%.03x",
-                                _cucul_attr_to_rgb12fg(lineattr[x]),
-                                _cucul_attr_to_rgb12bg(lineattr[x]));
+            cur += sprintf(cur, "<span style=\"");
+            if(cucul_attr_to_ansi_fg(lineattr[x]) < 0x10)
+                cur += sprintf(cur, ";color:#%.03x",
+                               _cucul_attr_to_rgb12fg(lineattr[x]));
+            if(cucul_attr_to_ansi_bg(lineattr[x]) < 0x10)
+                cur += sprintf(cur, ";background-color:#%.03x",
+                               _cucul_attr_to_rgb12bg(lineattr[x]));
             if(lineattr[x] & CUCUL_BOLD)
                 cur += sprintf(cur, ";font-weight:bold");
             if(lineattr[x] & CUCUL_ITALICS)
@@ -466,7 +469,7 @@ static void *export_html3(cucul_canvas_t *cv, unsigned long int *bytes)
 
         for(x = 0; x < cv->width; x += len)
         {
-            unsigned int i;
+            unsigned int i, needfont;
 
             /* Use colspan option to factor cells with same attributes
              * (see below) */
@@ -474,14 +477,22 @@ static void *export_html3(cucul_canvas_t *cv, unsigned long int *bytes)
             while(x + len < cv->width && lineattr[x + len] == lineattr[x])
                 len++;
 
-            cur += sprintf(cur, "<td bgcolor=#%.06lx", (unsigned long int)
-                           _cucul_attr_to_rgb24bg(lineattr[x]));
+            cur += sprintf(cur, "<td");
+
+            if(cucul_attr_to_ansi_fg(lineattr[x]) < 0x10)
+                cur += sprintf(cur, " bgcolor=#%.06lx", (unsigned long int)
+                               _cucul_attr_to_rgb24bg(lineattr[x]));
 
             if(len > 1)
                 cur += sprintf(cur, " colspan=%d", len);
 
-            cur += sprintf(cur, "><font color=#%.06lx>", (unsigned long int)
-                           _cucul_attr_to_rgb24fg(lineattr[x]));
+            cur += sprintf(cur, ">");
+
+            needfont = cucul_attr_to_ansi_bg(lineattr[x]) < 0x10;
+
+            if(needfont)
+                cur += sprintf(cur, "<font color=#%.06lx>", (unsigned long int)
+                               _cucul_attr_to_rgb24fg(lineattr[x]));
 
             if(lineattr[x] & CUCUL_BOLD)
                 cur += sprintf(cur, "<b>");
@@ -513,7 +524,9 @@ static void *export_html3(cucul_canvas_t *cv, unsigned long int *bytes)
             if(lineattr[x] & CUCUL_BOLD)
                 cur += sprintf(cur, "</b>");
 
-            cur += sprintf(cur, "</font></td>");
+            if(needfont)
+                cur += sprintf(cur, "</font>");
+            cur += sprintf(cur, "</td>");
         }
         cur += sprintf(cur, "</tr>\n");
     }
diff --git a/test/export.c b/test/export.c
index 09adba0..ec5fd87 100644
--- a/test/export.c
+++ b/test/export.c
@@ -114,10 +114,22 @@ int main(int argc, char *argv[])
         cucul_set_color_ansi(cv, CUCUL_BLACK, CUCUL_WHITE);
         cucul_fill_ellipse(cv, WIDTH / 2, HEIGHT / 2,
                                WIDTH / 4, HEIGHT / 4, ' ');
-        cucul_put_str(cv, WIDTH / 2 - 5, HEIGHT / 2 - 5, "(\") \\o/ <&>");
+
+        cucul_set_color_ansi(cv, CUCUL_LIGHTGRAY, CUCUL_BLACK);
+        cucul_put_str(cv, WIDTH / 2 - 12, HEIGHT / 2 - 6,
+                      "   lightgray on black   ");
+        cucul_set_color_ansi(cv, CUCUL_DEFAULT, CUCUL_TRANSPARENT);
+        cucul_put_str(cv, WIDTH / 2 - 12, HEIGHT / 2 - 5,
+                      " default on transparent ");
+        cucul_set_color_ansi(cv, CUCUL_BLACK, CUCUL_WHITE);
+        cucul_put_str(cv, WIDTH / 2 - 12, HEIGHT / 2 - 4,
+                      "     black on white     ");
+
+        cucul_set_color_ansi(cv, CUCUL_BLACK, CUCUL_WHITE);
         cucul_put_str(cv, WIDTH / 2 - 8, HEIGHT / 2 - 3, "[<><><><> <>--<>]");
         cucul_put_str(cv, WIDTH / 2 - 8, HEIGHT / 2 - 2, "[ドラゴン ボーレ]");
         cucul_put_str(cv, WIDTH / 2 - 7, HEIGHT / 2 + 2, "äβç ░▒▓█▓▒░ ΔЗҒ");
+        cucul_put_str(cv, WIDTH / 2 - 5, HEIGHT / 2 + 4, "(\") \\o/ <&>");
 
         cucul_set_attr(cv, CUCUL_BOLD);
         cucul_put_str(cv, WIDTH / 2 - 16, HEIGHT / 2 + 3, "Bold");
@@ -135,7 +147,7 @@ int main(int argc, char *argv[])
         for(x = 0; x < 16; x++)
         {
             cucul_set_color_argb(cv, 0xff00 | x, 0xf00f | (x << 4));
-            cucul_put_str(cv, WIDTH / 2 - 7 + x, HEIGHT / 2 + 5, "#");
+            cucul_put_char(cv, WIDTH / 2 - 7 + x, HEIGHT / 2 + 6, '#');
         }
     }