Merge pull request #151 from Tucos/ws-hist

Preserve white-space in the input history.

diff --combined src/uisupport/multilineedit.cpp
index 7e89f49,0651abf..37f1f62
--- 1/src/uisupport/multilineedit.cpp
--- 2/src/uisupport/multilineedit.cpp
+++ b/src/uisupport/multilineedit.cpp
@@@ -41,7 -41,6 +41,7 @@@ MultiLineEdit::MultiLineEdit(QWidget *p
      _scrollBarsEnabled(true),
      _pasteProtectionEnabled(true),
      _emacsMode(false),
 +    _completionSpace(0),
      _lastDocumentHeight(-1)
  {
      document()->setDocumentMargin(0);
@@@ -55,6 -54,9 +55,9 @@@
      setLineWrapEnabled(false);
      reset();
  
+     // Prevent QTextHtmlImporter::appendNodeText from eating whitespace
+     document()->setDefaultStyleSheet("span { white-space: pre-wrap; }");
+ 
      connect(this, SIGNAL(textChanged()), this, SLOT(on_textChanged()));
  
      _mircColorMap["00"] = "#ffffff";
@@@ -668,12 -670,8 +671,12 @@@ void MultiLineEdit::on_returnPressed(
  }
  
  
 -void MultiLineEdit::on_returnPressed(const QString &text)
 +void MultiLineEdit::on_returnPressed(QString text)
  {
 +    if (_completionSpace && text.endsWith(" ")) {
 +        text.chop(1);
 +    }
 +
      if (!text.isEmpty()) {
          foreach(const QString &line, text.split('\n', QString::SkipEmptyParts)) {
              if (line.isEmpty())
@@@ -692,8 -690,6 +695,8 @@@
  
  void MultiLineEdit::on_textChanged()
  {
 +    _completionSpace = qMax(_completionSpace - 1, 0);
 +
      QString newText = text();
      newText.replace("\r\n", "\n");
      newText.replace('\r', '\n');
@@@ -776,12 -772,3 +779,12 @@@ void MultiLineEdit::showHistoryEntry(
      setTextCursor(cursor);
      updateScrollBars();
  }
 +
 +
 +void MultiLineEdit::addCompletionSpace()
 +{
 +    // Inserting the space emits textChanged, which should not disable removal
 +    _completionSpace = 2;
 +    insertPlainText(" ");
 +}
 +