src/textcursor.C

   1
   2 #include "textcursor.h"
   3
   4 bool TextCursor::setSelection()
   5 {
   6         bool const lsel = selection.set();
   7
   8         if (!selection.set()) {
   9                 last_sel_cursor = selection.cursor;
  10                 selection.start = selection.cursor;
  11                 selection.end = selection.cursor;
  12         }
  13
  14         selection.set(true);
  15
  16         // first the toggling area
  17         if (cursor.y() < last_sel_cursor.y()
  18             || (cursor.y() == last_sel_cursor.y()
  19                 && cursor.x() < last_sel_cursor.x())) {
  20                 toggle_end_cursor = last_sel_cursor;
  21                 toggle_cursor = cursor;
  22         } else {
  23                 toggle_end_cursor = cursor;
  24                 toggle_cursor = last_sel_cursor;
  25         }
  26
  27         last_sel_cursor = cursor;
  28
  29         // and now the whole selection
  30
  31         if (selection.cursor.par() == cursor.par())
  32                 if (selection.cursor.pos() < cursor.pos()) {
  33                         selection.end = cursor;
  34                         selection.start = selection.cursor;
  35                 } else {
  36                         selection.end = selection.cursor;
  37                         selection.start = cursor;
  38                 }
  39         else if (selection.cursor.y() < cursor.y() ||
  40                  (selection.cursor.y() == cursor.y()
  41                   && selection.cursor.x() < cursor.x())) {
  42                 selection.end = cursor;
  43                 selection.start = selection.cursor;
  44         }
  45         else {
  46                 selection.end = selection.cursor;
  47                 selection.start = cursor;
  48         }
  49
  50         // a selection with no contents is not a selection
  51         if (selection.start.par() == selection.end.par() &&
  52             selection.start.pos() == selection.end.pos())
  53                 selection.set(false);
  54
  55         return lsel;
  56 }
  57
  58
  59 void TextCursor::clearSelection()
  60 {
  61         selection.set(false);
  62         selection.mark(false);
  63         last_sel_cursor = selection.end = selection.start = selection.cursor = cursor;
  64 }
  65
  66
  67 string const TextCursor::selectionAsString(Buffer const * buffer,
  68                                         bool label) const
  69 {
  70         if (!selection.set())
  71                 return string();
  72
  73         // should be const ...
  74         ParagraphList::iterator startpit = selection.start.par();
  75         ParagraphList::iterator endpit = selection.end.par();
  76         size_t const startpos = selection.start.pos();
  77         size_t const endpos = selection.end.pos();
  78
  79         if (startpit == endpit)
  80                 return startpit->asString(buffer, startpos, endpos, label);
  81
  82         // First paragraph in selection
  83         string result =
  84                 startpit->asString(buffer, startpos, startpit->size(), label) + "\n\n";
  85
  86         // The paragraphs in between (if any)
  87         ParagraphList::iterator pit = startpit;
  88         for (++pit; pit != endpit; ++pit)
  89                 result += pit->asString(buffer, 0, pit->size(), label) + "\n\n";
  90
  91         // Last paragraph in selection
  92         result += endpit->asString(buffer, 0, endpos, label);
  93
  94         return result;
  95 }