library split

1 files changed, 264 insertions, 0 deletions

diff --git a/src/widgets/util/qcompleter_p.h b/src/widgets/util/qcompleter_p.h
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+++ b/src/widgets/util/qcompleter_p.h
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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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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