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/*
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* Copyright (c) 2004 Jason Kivlighn <mizunoami44@users.sourceforge.net>
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* Copyright (c) 2005 Christian Loose <christian.loose@kdemail.net>
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*
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* based on work by Jason Kivlighn (krecipes/src/widgets/kretextedit.cpp)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "logmessageedit.h"
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using Cervisia::LogMessageEdit;
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#include <tqtextstream.h>
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#include <kaccel.h>
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LogMessageEdit::LogMessageEdit(TQWidget* parent)
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: KTextEdit(parent)
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, KCompletionBase()
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, m_completing(false)
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, m_completionStartPos(0)
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{
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// create the completion object
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completionObject();
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// a mouse click stops the completion process
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connect( this, TQT_SIGNAL(clicked(int, int)), TQT_SLOT(stopCompletion()) );
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}
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void LogMessageEdit::setCompletedText(const TQString& match)
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{
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int para, index;
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getCursorPosition(¶, &index);
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TQString paragraphText = text(para);
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int length = index - m_completionStartPos;
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TQString word = match.right(match.length() - length);
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insert(word);
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setSelection(para, index, para, m_completionStartPos + match.length());
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setCursorPosition(para, index);
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m_completing = true;
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// disable spellchecker during completion process. Otherwise we lose the
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// text selection.
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setCheckSpellingEnabled(false);
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}
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void LogMessageEdit::setCompletedItems(const TQStringList&)
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{
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}
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void LogMessageEdit::keyPressEvent(TQKeyEvent* event)
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{
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bool noModifier = (event->state() == NoButton ||
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event->state() == ShiftButton ||
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event->state() == Keypad);
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if( noModifier )
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{
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TQString keycode = event->text();
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if( !keycode.isEmpty() && keycode.unicode()->isPrint() )
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{
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KTextEdit::keyPressEvent(event);
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tryCompletion();
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event->accept();
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return;
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}
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}
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KeyBindingMap keys = getKeyBindings();
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// handle text completion key
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KShortcut shortcut = keys[TextCompletion];
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if( shortcut.isNull() )
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shortcut = KStdAccel::shortcut(KStdAccel::TextCompletion);
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KKey key(event);
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// accept the suggested completion?
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if( m_completing && shortcut.contains(key) )
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{
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int paraFrom, indexFrom, paraTo, indexTo;
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getSelection(¶From, &indexFrom, ¶To, &indexTo);
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removeSelection();
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setCursorPosition(paraTo, indexTo);
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m_completing = false;
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setCheckSpellingEnabled(true);
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return;
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}
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// handle previous match key
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shortcut = keys[PrevCompletionMatch];
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if( shortcut.isNull() )
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shortcut = KStdAccel::shortcut(KStdAccel::PrevCompletion);
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if( shortcut.contains(key) )
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{
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rotateMatches(PrevCompletionMatch);
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return;
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}
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// handle next match key
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shortcut = keys[NextCompletionMatch];
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if( shortcut.isNull() )
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shortcut = KStdAccel::shortcut(KStdAccel::NextCompletion);
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if( shortcut.contains(key) )
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{
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rotateMatches(NextCompletionMatch);
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return;
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}
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// any other key (except modifiers) will end the text completion
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if( event->key() != Qt::Key_Shift && event->key() != Qt::Key_Control &&
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event->key() != Qt::Key_Alt && event->key() != Qt::Key_Meta )
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{
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m_completing = false;
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setCheckSpellingEnabled(true);
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}
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KTextEdit::keyPressEvent(event);
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}
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void LogMessageEdit::stopCompletion()
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{
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m_completing = false;
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setCheckSpellingEnabled(true);
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}
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void LogMessageEdit::tryCompletion()
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{
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int para, index;
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getCursorPosition(¶, &index);
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TQString paragraphText = text(para);
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if( paragraphText.at(index).isSpace() )
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{
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if( !m_completing )
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m_completionStartPos = paragraphText.findRev(' ', index-1) + 1;
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int length = index - m_completionStartPos;
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TQString word = paragraphText.mid(m_completionStartPos, length);
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TQString match = compObj()->makeCompletion(word);
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if( !match.isNull() && match != word )
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{
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setCompletedText(match);
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}
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else
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{
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m_completing = false;
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setCheckSpellingEnabled(true);
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}
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}
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}
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void LogMessageEdit::rotateMatches(KeyBindingType type)
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{
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KCompletion* completionObj = compObj();
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if( completionObj && m_completing &&
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(type == PrevCompletionMatch || type == NextCompletionMatch) )
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{
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TQString match = (type == PrevCompletionMatch) ? completionObj->previousMatch()
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: completionObj->nextMatch();
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int para, index;
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getCursorPosition(¶, &index);
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TQString paragraphText = text(para);
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TQString word = paragraphText.mid(m_completionStartPos, index - m_completionStartPos);
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if( match.isNull() || match == word )
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return;
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setCompletedText(match);
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}
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}
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#include "logmessageedit.moc"
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