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/*
* Copyright (c) 2004 Jason Kivlighn <mizunoami44@users.sourceforge.net>
* Copyright (c) 2005 Christian Loose <christian.loose@kdemail.net>
*
* based on work by Jason Kivlighn (krecipes/src/widgets/kretextedit.cpp)
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "logmessageedit.h"
using Cervisia::LogMessageEdit;
#include <tqtextstream.h>
#include <tdeaccel.h>
LogMessageEdit::LogMessageEdit(TQWidget* parent)
: KTextEdit(parent)
, TDECompletionBase()
, m_completing(false)
, m_completionStartPos(0)
{
// create the completion object
completionObject();
// a mouse click stops the completion process
connect( this, TQT_SIGNAL(clicked(int, int)), TQT_SLOT(stopCompletion()) );
}
void LogMessageEdit::setCompletedText(const TQString& match)
{
int para, index;
getCursorPosition(¶, &index);
TQString paragraphText = text(para);
int length = index - m_completionStartPos;
TQString word = match.right(match.length() - length);
insert(word);
setSelection(para, index, para, m_completionStartPos + match.length());
setCursorPosition(para, index);
m_completing = true;
// disable spellchecker during completion process. Otherwise we lose the
// text selection.
setCheckSpellingEnabled(false);
}
void LogMessageEdit::setCompletedItems(const TQStringList&)
{
}
void LogMessageEdit::keyPressEvent(TQKeyEvent* event)
{
bool noModifier = (event->state() == TQt::NoButton ||
event->state() == ShiftButton ||
event->state() == Keypad);
if( noModifier )
{
TQString keycode = event->text();
if( !keycode.isEmpty() && keycode.unicode()->isPrint() )
{
KTextEdit::keyPressEvent(event);
tryCompletion();
event->accept();
return;
}
}
KeyBindingMap keys = getKeyBindings();
// handle text completion key
TDEShortcut shortcut = keys[TextCompletion];
if( shortcut.isNull() )
shortcut = TDEStdAccel::shortcut(TDEStdAccel::TextCompletion);
KKey key(event);
// accept the suggested completion?
if( m_completing && shortcut.contains(key) )
{
int paraFrom, indexFrom, paraTo, indexTo;
getSelection(¶From, &indexFrom, ¶To, &indexTo);
removeSelection();
setCursorPosition(paraTo, indexTo);
m_completing = false;
setCheckSpellingEnabled(true);
return;
}
// handle previous match key
shortcut = keys[PrevCompletionMatch];
if( shortcut.isNull() )
shortcut = TDEStdAccel::shortcut(TDEStdAccel::PrevCompletion);
if( shortcut.contains(key) )
{
rotateMatches(PrevCompletionMatch);
return;
}
// handle next match key
shortcut = keys[NextCompletionMatch];
if( shortcut.isNull() )
shortcut = TDEStdAccel::shortcut(TDEStdAccel::NextCompletion);
if( shortcut.contains(key) )
{
rotateMatches(NextCompletionMatch);
return;
}
// any other key (except modifiers) will end the text completion
if( event->key() != TQt::Key_Shift && event->key() != TQt::Key_Control &&
event->key() != TQt::Key_Alt && event->key() != TQt::Key_Meta )
{
m_completing = false;
setCheckSpellingEnabled(true);
}
KTextEdit::keyPressEvent(event);
}
void LogMessageEdit::stopCompletion()
{
m_completing = false;
setCheckSpellingEnabled(true);
}
void LogMessageEdit::tryCompletion()
{
int para, index;
getCursorPosition(¶, &index);
TQString paragraphText = text(para);
if( paragraphText.at(index).isSpace() )
{
if( !m_completing )
m_completionStartPos = paragraphText.findRev(' ', index-1) + 1;
int length = index - m_completionStartPos;
TQString word = paragraphText.mid(m_completionStartPos, length);
TQString match = compObj()->makeCompletion(word);
if( !match.isNull() && match != word )
{
setCompletedText(match);
}
else
{
m_completing = false;
setCheckSpellingEnabled(true);
}
}
}
void LogMessageEdit::rotateMatches(KeyBindingType type)
{
TDECompletion* completionObj = compObj();
if( completionObj && m_completing &&
(type == PrevCompletionMatch || type == NextCompletionMatch) )
{
TQString match = (type == PrevCompletionMatch) ? completionObj->previousMatch()
: completionObj->nextMatch();
int para, index;
getCursorPosition(¶, &index);
TQString paragraphText = text(para);
TQString word = paragraphText.mid(m_completionStartPos, index - m_completionStartPos);
if( match.isNull() || match == word )
return;
setCompletedText(match);
}
}
#include "logmessageedit.moc"
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