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-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtGui module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** 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 1.1, 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.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QCOMPLETER_P_H
-#define QCOMPLETER_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/qobject_p.h"
-
-#ifndef QT_NO_COMPLETER
-
-#include "QtGui/qtreeview.h"
-#include "QtGui/qabstractproxymodel.h"
-#include "qcompleter.h"
-#include "QtGui/qitemdelegate.h"
-#include "QtGui/qpainter.h"
-#include "private/qabstractproxymodel_p.h"
-
-QT_BEGIN_NAMESPACE
-
-class QCompletionModel;
-
-class QCompleterPrivate : public QObjectPrivate
-{
- Q_DECLARE_PUBLIC(QCompleter)
-
-public:
- QCompleterPrivate();
- ~QCompleterPrivate() { delete popup; }
- void init(QAbstractItemModel *model = 0);
-
- QPointer<QWidget> widget;
- QCompletionModel *proxy;
- QAbstractItemView *popup;
- QCompleter::CompletionMode mode;
-
- QString prefix;
- Qt::CaseSensitivity cs;
- int role;
- int column;
- int maxVisibleItems;
- QCompleter::ModelSorting sorting;
- bool wrap;
-
- bool eatFocusOut;
- QRect popupRect;
- bool hiddenBecauseNoMatch;
-
- void showPopup(const QRect&);
- void _q_complete(QModelIndex, bool = false);
- void _q_completionSelected(const QItemSelection&);
- void _q_autoResizePopup();
- void _q_fileSystemModelDirectoryLoaded(const QString &path);
- void setCurrentIndex(QModelIndex, bool = true);
-};
-
-class QIndexMapper
-{
-public:
- QIndexMapper() : v(false), f(0), t(-1) { }
- QIndexMapper(int f, int t) : v(false), f(f), t(t) { }
- QIndexMapper(QVector<int> vec) : v(true), vector(vec), f(-1), t(-1) { }
-
- inline int count() const { return v ? vector.count() : t - f + 1; }
- inline int operator[] (int index) const { return v ? vector[index] : f + index; }
- inline int indexOf(int x) const { return v ? vector.indexOf(x) : ((t < f) ? -1 : x - f); }
- inline bool isValid() const { return !isEmpty(); }
- inline bool isEmpty() const { return v ? vector.isEmpty() : (t < f); }
- inline void append(int x) { Q_ASSERT(v); vector.append(x); }
- inline int first() const { return v ? vector.first() : f; }
- inline int last() const { return v ? vector.last() : t; }
- inline int from() const { Q_ASSERT(!v); return f; }
- inline int to() const { Q_ASSERT(!v); return t; }
- inline int cost() const { return vector.count()+2; }
-
-private:
- bool v;
- QVector<int> vector;
- int f, t;
-};
-
-struct QMatchData {
- QMatchData() : exactMatchIndex(-1) { }
- QMatchData(const QIndexMapper& indices, int em, bool p) :
- indices(indices), exactMatchIndex(em), partial(p) { }
- QIndexMapper indices;
- inline bool isValid() const { return indices.isValid(); }
- int exactMatchIndex;
- bool partial;
-};
-
-class QCompletionEngine
-{
-public:
- typedef QMap<QString, QMatchData> CacheItem;
- typedef QMap<QModelIndex, CacheItem> Cache;
-
- QCompletionEngine(QCompleterPrivate *c) : c(c), curRow(-1), cost(0) { }
- virtual ~QCompletionEngine() { }
-
- void filter(const QStringList &parts);
-
- QMatchData filterHistory();
- bool matchHint(QString, const QModelIndex&, QMatchData*);
-
- void saveInCache(QString, const QModelIndex&, const QMatchData&);
- bool lookupCache(QString part, const QModelIndex& parent, QMatchData *m);
-
- virtual void filterOnDemand(int) { }
- virtual QMatchData filter(const QString&, const QModelIndex&, int) = 0;
-
- int matchCount() const { return curMatch.indices.count() + historyMatch.indices.count(); }
-
- QMatchData curMatch, historyMatch;
- QCompleterPrivate *c;
- QStringList curParts;
- QModelIndex curParent;
- int curRow;
-
- Cache cache;
- int cost;
-};
-
-class QSortedModelEngine : public QCompletionEngine
-{
-public:
- QSortedModelEngine(QCompleterPrivate *c) : QCompletionEngine(c) { }
- QMatchData filter(const QString&, const QModelIndex&, int);
- QIndexMapper indexHint(QString, const QModelIndex&, Qt::SortOrder);
- Qt::SortOrder sortOrder(const QModelIndex&) const;
-};
-
-class QUnsortedModelEngine : public QCompletionEngine
-{
-public:
- QUnsortedModelEngine(QCompleterPrivate *c) : QCompletionEngine(c) { }
-
- void filterOnDemand(int);
- QMatchData filter(const QString&, const QModelIndex&, int);
-private:
- int buildIndices(const QString& str, const QModelIndex& parent, int n,
- const QIndexMapper& iv, QMatchData* m);
-};
-
-class QCompleterItemDelegate : public QItemDelegate
-{
-public:
- QCompleterItemDelegate(QAbstractItemView *view)
- : QItemDelegate(view), view(view) { }
- void paint(QPainter *p, const QStyleOptionViewItem& opt, const QModelIndex& idx) const {
- QStyleOptionViewItem optCopy = opt;
- optCopy.showDecorationSelected = true;
- if (view->currentIndex() == idx)
- optCopy.state |= QStyle::State_HasFocus;
- QItemDelegate::paint(p, optCopy, idx);
- }
-
-private:
- QAbstractItemView *view;
-};
-
-class QCompletionModelPrivate;
-
-class QCompletionModel : public QAbstractProxyModel
-{
- Q_OBJECT
-
-public:
- QCompletionModel(QCompleterPrivate *c, QObject *parent);
-
- void createEngine();
- void setFiltered(bool);
- void filter(const QStringList& parts);
- int completionCount() const;
- int currentRow() const { return engine->curRow; }
- bool setCurrentRow(int row);
- QModelIndex currentIndex(bool) const;
- void resetModel();
-
- QModelIndex index(int row, int column, const QModelIndex & = QModelIndex()) const;
- int rowCount(const QModelIndex &index = QModelIndex()) const;
- int columnCount(const QModelIndex &index = QModelIndex()) const;
- bool hasChildren(const QModelIndex &parent = QModelIndex()) const;
- QModelIndex parent(const QModelIndex & = QModelIndex()) const { return QModelIndex(); }
- QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const;
-
- void setSourceModel(QAbstractItemModel *sourceModel);
- QModelIndex mapToSource(const QModelIndex& proxyIndex) const;
- QModelIndex mapFromSource(const QModelIndex& sourceIndex) const;
-
- QCompleterPrivate *c;
- QScopedPointer<QCompletionEngine> engine;
- bool showAll;
-
- Q_DECLARE_PRIVATE(QCompletionModel)
-
-signals:
- void rowsAdded();
-
-public Q_SLOTS:
- void invalidate();
- void rowsInserted();
- void modelDestroyed();
-};
-
-class QCompletionModelPrivate : public QAbstractProxyModelPrivate
-{
- Q_DECLARE_PUBLIC(QCompletionModel)
-};
-
-QT_END_NAMESPACE
-
-#endif // QT_NO_COMPLETER
-
-#endif // QCOMPLETER_P_H
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