Starting reorganization of files in preparation of separation of client and GUI.

[quassel.git] / src / qtgui / tabcompleter.cpp

diff --git a/src/qtgui/tabcompleter.cpp b/src/qtgui/tabcompleter.cpp
new file mode 100644 (file)
index 0000000..5b3e97f
--- /dev/null
+++ b/src/qtgui/tabcompleter.cpp
@@ -0,0 +1,86 @@
+/***************************************************************************
+ *   Copyright (C) 2005/06 by The Quassel Team                             *
+ *   devel@quassel-irc.org                                                 *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include "tabcompleter.h"
+
+TabCompleter::TabCompleter(QLineEdit *l, QObject *parent) : QObject(parent) {
+  lineEdit = l;
+  enabled = false;
+  startOfLineSuffix = QString(": "); // TODO make start of line suffix configurable
+}
+
+void TabCompleter::updateNickList(QStringList l) {
+  nickList = l;
+}
+
+void TabCompleter::updateChannelList(QStringList l) {
+  channelList = l;
+}
+
+void TabCompleter::buildCompletionList() {
+  // this is the first time tab is pressed -> build up the completion list and it's iterator
+  QString tabAbbrev = lineEdit->text().left(lineEdit->cursorPosition()).section(' ',-1,-1);
+  completionList.clear();
+  foreach(QString nick, nickList) {
+    if(nick.toLower().startsWith(tabAbbrev.toLower())) {
+      completionList << nick;
+    }
+  }
+  completionList.sort();
+  nextCompletion = completionList.begin();
+  lastCompletionLength = tabAbbrev.length();
+}
+
+void TabCompleter::complete() {
+  if (not enabled) {
+    buildCompletionList();
+    enabled = true;  
+  }
+  
+  if (nextCompletion != completionList.end()) {
+    // clear previous completion
+    for (int i = 0; i < lastCompletionLength; i++) {
+      lineEdit->backspace();
+    }
+    
+    // insert completion
+    lineEdit->insert(*nextCompletion);
+    
+    // remember charcount to delete next time and advance to next completion
+    lastCompletionLength = nextCompletion->length();
+    nextCompletion++;
+    
+    // we're completing the first word of the line
+    if(lineEdit->text().length() == lastCompletionLength) {
+      lineEdit->insert(startOfLineSuffix);
+      lastCompletionLength += 2;
+    }
+
+  // we're at the end of the list -> start over again
+  } else {
+    nextCompletion = completionList.begin();
+  }
+  
+}
+
+void TabCompleter::disable() {
+  enabled = false;
+}
+