src/textcursor.C

   1 #include <config.h>
   2
   3 #include "textcursor.h"
   4
   5 void TextCursor::setSelection()
   6 {
   7         if (!selection.set()) {
   8                 selection.start = selection.cursor;
   9                 selection.end = selection.cursor;
  10         }
  11
  12         selection.set(true);
  13
  14         // and now the whole selection
  15         if (selection.cursor.par() == cursor.par())
  16                 if (selection.cursor.pos() < cursor.pos()) {
  17                         selection.end = cursor;
  18                         selection.start = selection.cursor;
  19                 } else {
  20                         selection.end = selection.cursor;
  21                         selection.start = cursor;
  22                 }
  23         else if (selection.cursor.y() < cursor.y() ||
  24                  (selection.cursor.y() == cursor.y()
  25                   && selection.cursor.x() < cursor.x())) {
  26                 selection.end = cursor;
  27                 selection.start = selection.cursor;
  28         }
  29         else {
  30                 selection.end = selection.cursor;
  31                 selection.start = cursor;
  32         }
  33
  34         // a selection with no contents is not a selection
  35         if (selection.start.par() == selection.end.par() &&
  36             selection.start.pos() == selection.end.pos())
  37         {
  38                 selection.set(false);
  39         }
  40 }
  41
  42
  43 void TextCursor::clearSelection()
  44 {
  45         selection.set(false);
  46         selection.mark(false);
  47         selection.end    = cursor;
  48         selection.start  = cursor;
  49         selection.cursor = cursor;
  50 }
  51
  52
  53 string const TextCursor::selectionAsString(Buffer const * buffer,
  54                                         bool label) const
  55 {
  56         if (!selection.set())
  57                 return string();
  58
  59         // should be const ...
  60         ParagraphList::iterator startpit = selection.start.par();
  61         ParagraphList::iterator endpit = selection.end.par();
  62         size_t const startpos = selection.start.pos();
  63         size_t const endpos = selection.end.pos();
  64
  65         if (startpit == endpit)
  66                 return startpit->asString(buffer, startpos, endpos, label);
  67
  68         // First paragraph in selection
  69         string result =
  70                 startpit->asString(buffer, startpos, startpit->size(), label) + "\n\n";
  71
  72         // The paragraphs in between (if any)
  73         ParagraphList::iterator pit = startpit;
  74         for (++pit; pit != endpit; ++pit)
  75                 result += pit->asString(buffer, 0, pit->size(), label) + "\n\n";
  76
  77         // Last paragraph in selection
  78         result += endpit->asString(buffer, 0, endpos, label);
  79
  80         return result;
  81 }