src/textcursor.C

   1 #include <config.h>
   2
   3 #include "textcursor.h"
   4
   5 bool TextCursor::setSelection()
   6 {
   7         bool const lsel = selection.set();
   8
   9         if (!selection.set()) {
  10                 last_sel_cursor = selection.cursor;
  11                 selection.start = selection.cursor;
  12                 selection.end = selection.cursor;
  13         }
  14
  15         selection.set(true);
  16
  17         last_sel_cursor = cursor;
  18
  19         // and now the whole selection
  20
  21         if (selection.cursor.par() == cursor.par())
  22                 if (selection.cursor.pos() < cursor.pos()) {
  23                         selection.end = cursor;
  24                         selection.start = selection.cursor;
  25                 } else {
  26                         selection.end = selection.cursor;
  27                         selection.start = cursor;
  28                 }
  29         else if (selection.cursor.y() < cursor.y() ||
  30                  (selection.cursor.y() == cursor.y()
  31                   && selection.cursor.x() < cursor.x())) {
  32                 selection.end = cursor;
  33                 selection.start = selection.cursor;
  34         }
  35         else {
  36                 selection.end = selection.cursor;
  37                 selection.start = cursor;
  38         }
  39
  40         // a selection with no contents is not a selection
  41         if (selection.start.par() == selection.end.par() &&
  42             selection.start.pos() == selection.end.pos())
  43                 selection.set(false);
  44
  45         return lsel;
  46 }
  47
  48
  49 void TextCursor::clearSelection()
  50 {
  51         selection.set(false);
  52         selection.mark(false);
  53         last_sel_cursor = selection.end = selection.start = selection.cursor = cursor;
  54 }
  55
  56
  57 string const TextCursor::selectionAsString(Buffer const * buffer,
  58                                         bool label) const
  59 {
  60         if (!selection.set())
  61                 return string();
  62
  63         // should be const ...
  64         ParagraphList::iterator startpit = selection.start.par();
  65         ParagraphList::iterator endpit = selection.end.par();
  66         size_t const startpos = selection.start.pos();
  67         size_t const endpos = selection.end.pos();
  68
  69         if (startpit == endpit)
  70                 return startpit->asString(buffer, startpos, endpos, label);
  71
  72         // First paragraph in selection
  73         string result =
  74                 startpit->asString(buffer, startpos, startpit->size(), label) + "\n\n";
  75
  76         // The paragraphs in between (if any)
  77         ParagraphList::iterator pit = startpit;
  78         for (++pit; pit != endpit; ++pit)
  79                 result += pit->asString(buffer, 0, pit->size(), label) + "\n\n";
  80
  81         // Last paragraph in selection
  82         result += endpit->asString(buffer, 0, endpos, label);
  83
  84         return result;
  85 }