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Diffstat (limited to 'src/gui/kernel/qdirectionsimplificator_p.h')
-rw-r--r-- | src/gui/kernel/qdirectionsimplificator_p.h | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/src/gui/kernel/qdirectionsimplificator_p.h b/src/gui/kernel/qdirectionsimplificator_p.h deleted file mode 100644 index d7491dc..0000000 --- a/src/gui/kernel/qdirectionsimplificator_p.h +++ /dev/null @@ -1,172 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain -** additional rights. These rights are described in the Nokia Qt LGPL -** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this -** package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** If you are unsure which license is appropriate for your use, please -** contact the sales department at http://www.qtsoftware.com/contact. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QDIRECTIONSIMPLIFICATOR_P_H -#define QDIRECTIONSIMPLIFICATOR_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include "private/qdirectionrecognizer_p.h" - -QT_BEGIN_NAMESPACE - -class QDirectionSimplificator -{ -public: - QDirectionSimplificator(const DirectionList &dir); - - bool simplify(DirectionList *result); - -private: - DirectionList directions; - DirectionList lastResult; - enum State { - None, - Trim, // remove first and last element - AccidentalMoves, // 66866 => 6666 - ComplexAccidentalMoves, // 778788 => 777888 (swapping elements without changing direction) - ShortMoves, // (moves of length 1) - } state; - - struct SimplifyTrim - { - SimplifyTrim() : state(0) { } - bool operator()(DirectionList &directions) - { - if (state == 0) { - directions.removeFirst(); - state = 1; - } else if (state == 1) { - directions.removeLast(); - state = 2; - } else if (state == 2 && directions.size() >= 2) { - directions.removeFirst(); - directions.removeLast(); - state = 3; - } else { - return false; - } - return true; - } - int state; - }; - struct SimplifyAccidentalMoves - { - SimplifyAccidentalMoves() : state(0) { } - bool operator()(DirectionList &directions) - { - return false; - } - int state; - }; - struct SimplifyComplexAccidentalMoves - { - SimplifyComplexAccidentalMoves() : state(0) { } - bool operator()(DirectionList &directions) - { - return false; - } - int state; - }; - - SimplifyTrim trim; - SimplifyAccidentalMoves accidentalMoves; - SimplifyComplexAccidentalMoves complexAccidentalMoves; - //SimplifyShortMoves shortMoves; -}; - -QDirectionSimplificator::QDirectionSimplificator(const DirectionList &dir) - : directions(dir), state(None) -{ -} - -bool QDirectionSimplificator::simplify(DirectionList *result) -{ - if (directions.isEmpty() || !result) - return false; - *result = directions; - switch(state) { - case None: - state = Trim; - trim = SimplifyTrim(); - case Trim: - if (trim(*result)) - break; - *result = lastResult; - state = AccidentalMoves; - accidentalMoves = SimplifyAccidentalMoves(); - case AccidentalMoves: - if (accidentalMoves(*result)) - break; - *result = lastResult; - state = ComplexAccidentalMoves; - complexAccidentalMoves = SimplifyComplexAccidentalMoves(); - case ComplexAccidentalMoves: - if (complexAccidentalMoves(*result)) - break; - *result = lastResult; - // state = ShortMoves; - // shortMoves = SimplifyShortMoves(); - // case ShortMoves: - // if (shortMoves(*result)) - // break; - // state = None; - default: - return false; - } - lastResult = *result; - if (lastResult.isEmpty()) - return false; - return true; -} - -QT_END_NAMESPACE - -#endif // QDIRECTIONSIMPLIFICATOR_P_H |