src/html_markup.c

   1 /* logjam - a GTK client for LiveJournal.
   2  * Copyright (C) 2005 Evan Martin <evan@livejournal.com>
   3  */
   4
   5 #include "gtk-all.h"
   6
   7 #include <string.h>
   8 #include "html_markup.h"
   9
  10
  11 void html_mark_tag (JamDoc *doc, const char *tag, ...) {
  12   GtkTextBuffer *buffer;
  13   GtkTextIter start, end;
  14   GtkTextMark *ins;
  15   char *startTag, *endTag;
  16   int tagLen;
  17   va_list ap;
  18
  19   if (!strcmp(tag, "span")) {
  20     va_start(ap, tag);
  21     startTag = g_strdup_printf("<%s %s>", tag, va_arg(ap, const char *));
  22     va_end(ap);
  23   } else {
  24     startTag = g_strdup_printf("<%s>", tag);
  25   }
  26   endTag = g_strdup_printf("</%s>", tag);
  27   tagLen = strlen(endTag);
  28
  29   buffer = jam_doc_get_text_buffer(doc);
  30
  31   gtk_text_buffer_begin_user_action(buffer);    /* start undo action */
  32
  33   if (!gtk_text_buffer_get_selection_bounds(buffer, &start, &end)) {
  34     gtk_text_buffer_insert_at_cursor(buffer, startTag, -1);
  35     gtk_text_buffer_insert_at_cursor(buffer, endTag, -1);
  36     ins = gtk_text_buffer_get_mark(buffer, "insert");
  37     gtk_text_buffer_get_iter_at_mark(buffer, &start, ins);
  38     gtk_text_iter_backward_chars(&start, tagLen);
  39     gtk_text_buffer_move_mark_by_name(buffer, "insert", &start);
  40     gtk_text_buffer_move_mark_by_name(buffer, "selection_bound", &start);
  41   } else {
  42     gtk_text_buffer_insert(buffer, &start, startTag, -1);
  43     gtk_text_buffer_get_selection_bounds(buffer, &start, &end);
  44     gtk_text_buffer_insert(buffer, &end, endTag, -1);
  45     gtk_text_buffer_move_mark_by_name(buffer, "insert", &end);
  46     gtk_text_buffer_move_mark_by_name(buffer, "selection_bound", &end);
  47   }
  48
  49   g_free(startTag);
  50   g_free(endTag);
  51   gtk_text_buffer_end_user_action(buffer);
  52 }
  53
  54
  55 #define MKTAG(name,...)  void html_mark_##name (JamDoc *doc) { html_mark_tag(doc, __VA_ARGS__); }
  56 #define MKTAG2(name,t1,t2)  void html_mark_##name (JamDoc *doc) { html_mark_tag(doc, t1); html_mark_tag(doc, t2); }
  57
  58 MKTAG(smallcaps, "span", "style=\"font-variant:small-caps\"")
  59
  60 MKTAG(bold, "b")
  61 MKTAG(italic, "i")
  62 MKTAG(underline, "u")
  63 MKTAG(strikeout, "s")
  64 MKTAG(monospaced, "tt")
  65 MKTAG(para, "p")
  66 MKTAG(blockquote, "blockquote")
  67 MKTAG(small, "small")
  68 MKTAG(big, "big")
  69 MKTAG(ulist, "ul")
  70 MKTAG(olist, "ol")
  71 MKTAG(listitem, "li")
  72 MKTAG(h2, "h2")
  73 MKTAG(h3, "h3")
  74 MKTAG(h4, "h4")
  75
  76 MKTAG2(superscript, "small", "sup")
  77 MKTAG2(subscript, "small", "sub")