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<h1 class="title">history.h Example File</h1>
<span class="subtitle">webkitwidgets/browser/history.h</span>
<!-- $$$webkitwidgets/browser/history.h-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"><span class="comment">/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#ifndef HISTORY_H</span>
<span class="preprocessor">#define HISTORY_H</span>
<span class="preprocessor">#include "modelmenu.h"</span>
<span class="preprocessor">#include <QtCore/QDateTime></span>
<span class="preprocessor">#include <QtCore/QHash></span>
<span class="preprocessor">#include <QtCore/QObject></span>
<span class="preprocessor">#include <QtCore/QTimer></span>
<span class="preprocessor">#include <QtCore/QUrl></span>
<span class="preprocessor">#include <QtCore/QSortFilterProxyModel></span>
<span class="preprocessor">#include <QWebHistoryInterface></span>
<span class="keyword">class</span> HistoryItem
{
<span class="keyword">public</span>:
HistoryItem() {}
HistoryItem(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>u<span class="operator">,</span>
<span class="keyword">const</span> <span class="type"><a href="../qtcore/qdatetime.html">QDateTime</a></span> <span class="operator">&</span>d <span class="operator">=</span> <span class="type"><a href="../qtcore/qdatetime.html">QDateTime</a></span>()<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>t <span class="operator">=</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span>())
: title(t)<span class="operator">,</span> url(u)<span class="operator">,</span> dateTime(d) {}
<span class="keyword">inline</span> bool <span class="keyword">operator</span><span class="operator">=</span><span class="operator">=</span>(<span class="keyword">const</span> HistoryItem <span class="operator">&</span>other) <span class="keyword">const</span>
{ <span class="keyword">return</span> other<span class="operator">.</span>title <span class="operator">=</span><span class="operator">=</span> title
<span class="operator">&</span><span class="operator">&</span> other<span class="operator">.</span>url <span class="operator">=</span><span class="operator">=</span> url <span class="operator">&</span><span class="operator">&</span> other<span class="operator">.</span>dateTime <span class="operator">=</span><span class="operator">=</span> dateTime; }
<span class="comment">// history is sorted in reverse</span>
<span class="keyword">inline</span> bool <span class="keyword">operator</span> <span class="operator"><</span>(<span class="keyword">const</span> HistoryItem <span class="operator">&</span>other) <span class="keyword">const</span>
{ <span class="keyword">return</span> dateTime <span class="operator">></span> other<span class="operator">.</span>dateTime; }
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> title;
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> url;
<span class="type"><a href="../qtcore/qdatetime.html">QDateTime</a></span> dateTime;
};
<span class="keyword">class</span> AutoSaver;
<span class="keyword">class</span> HistoryModel;
<span class="keyword">class</span> HistoryFilterModel;
<span class="keyword">class</span> HistoryTreeModel;
<span class="keyword">class</span> HistoryManager : <span class="keyword">public</span> <span class="type"><a href="../qtwebkit/qwebhistoryinterface.html">QWebHistoryInterface</a></span>
{
Q_OBJECT
Q_PROPERTY(<span class="type">int</span> historyLimit READ historyLimit WRITE setHistoryLimit)
<span class="keyword">signals</span>:
<span class="type">void</span> historyReset();
<span class="type">void</span> entryAdded(<span class="keyword">const</span> HistoryItem <span class="operator">&</span>item);
<span class="type">void</span> entryRemoved(<span class="keyword">const</span> HistoryItem <span class="operator">&</span>item);
<span class="type">void</span> entryUpdated(<span class="type">int</span> offset);
<span class="keyword">public</span>:
HistoryManager(<span class="type"><a href="../qtcore/qobject.html">QObject</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>);
<span class="operator">~</span>HistoryManager();
bool historyContains(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>url) <span class="keyword">const</span>;
<span class="type">void</span> addHistoryEntry(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>url);
<span class="type">void</span> updateHistoryItem(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qurl.html">QUrl</a></span> <span class="operator">&</span>url<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>title);
<span class="type">int</span> historyLimit() <span class="keyword">const</span>;
<span class="type">void</span> setHistoryLimit(<span class="type">int</span> limit);
<span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span>HistoryItem<span class="operator">></span> history() <span class="keyword">const</span>;
<span class="type">void</span> setHistory(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span>HistoryItem<span class="operator">></span> <span class="operator">&</span>history<span class="operator">,</span> bool loadedAndSorted <span class="operator">=</span> <span class="keyword">false</span>);
<span class="comment">// History manager keeps around these models for use by the completer and other classes</span>
HistoryModel <span class="operator">*</span>historyModel() <span class="keyword">const</span>;
HistoryFilterModel <span class="operator">*</span>historyFilterModel() <span class="keyword">const</span>;
HistoryTreeModel <span class="operator">*</span>historyTreeModel() <span class="keyword">const</span>;
<span class="keyword">public</span> <span class="keyword">slots</span>:
<span class="type">void</span> clear();
<span class="type">void</span> loadSettings();
<span class="keyword">private</span> <span class="keyword">slots</span>:
<span class="type">void</span> save();
<span class="type">void</span> checkForExpired();
<span class="keyword">protected</span>:
<span class="type">void</span> addHistoryItem(<span class="keyword">const</span> HistoryItem <span class="operator">&</span>item);
<span class="keyword">private</span>:
<span class="type">void</span> load();
AutoSaver <span class="operator">*</span>m_saveTimer;
<span class="type">int</span> m_historyLimit;
<span class="type"><a href="../qtcore/qtimer.html">QTimer</a></span> m_expiredTimer;
<span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span>HistoryItem<span class="operator">></span> m_history;
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> m_lastSavedUrl;
HistoryModel <span class="operator">*</span>m_historyModel;
HistoryFilterModel <span class="operator">*</span>m_historyFilterModel;
HistoryTreeModel <span class="operator">*</span>m_historyTreeModel;
};
<span class="keyword">class</span> HistoryModel : <span class="keyword">public</span> <span class="type"><a href="../qtcore/qabstracttablemodel.html">QAbstractTableModel</a></span>
{
Q_OBJECT
<span class="keyword">public</span> <span class="keyword">slots</span>:
<span class="type">void</span> historyReset();
<span class="type">void</span> entryAdded();
<span class="type">void</span> entryUpdated(<span class="type">int</span> offset);
<span class="keyword">public</span>:
<span class="keyword">enum</span> Roles {
DateRole <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>UserRole <span class="operator">+</span> <span class="number">1</span><span class="operator">,</span>
DateTimeRole <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>UserRole <span class="operator">+</span> <span class="number">2</span><span class="operator">,</span>
UrlRole <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>UserRole <span class="operator">+</span> <span class="number">3</span><span class="operator">,</span>
UrlStringRole <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>UserRole <span class="operator">+</span> <span class="number">4</span>
};
HistoryModel(HistoryManager <span class="operator">*</span>history<span class="operator">,</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>);
<span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span> headerData(<span class="type">int</span> section<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Orientation orientation<span class="operator">,</span> <span class="type">int</span> role <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>DisplayRole) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span> data(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>index<span class="operator">,</span> <span class="type">int</span> role <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>DisplayRole) <span class="keyword">const</span>;
<span class="type">int</span> columnCount(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type">int</span> rowCount(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
bool removeRows(<span class="type">int</span> row<span class="operator">,</span> <span class="type">int</span> count<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>());
<span class="keyword">private</span>:
HistoryManager <span class="operator">*</span>m_history;
};
<span class="comment">/*!
Proxy model that will remove any duplicate entries.
Both m_sourceRow and m_historyHash store their offsets not from
the front of the list, but as offsets from the back.
*/</span>
<span class="keyword">class</span> HistoryFilterModel : <span class="keyword">public</span> <span class="type"><a href="../qtcore/qabstractproxymodel.html">QAbstractProxyModel</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
HistoryFilterModel(<span class="type"><a href="../qtcore/qabstractitemmodel.html">QAbstractItemModel</a></span> <span class="operator">*</span>sourceModel<span class="operator">,</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>);
<span class="keyword">inline</span> bool historyContains(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>url) <span class="keyword">const</span>
{ load(); <span class="keyword">return</span> m_historyHash<span class="operator">.</span>contains(url); }
<span class="type">int</span> historyLocation(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>url) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> mapFromSource(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>sourceIndex) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> mapToSource(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>proxyIndex) <span class="keyword">const</span>;
<span class="type">void</span> setSourceModel(<span class="type"><a href="../qtcore/qabstractitemmodel.html">QAbstractItemModel</a></span> <span class="operator">*</span>sourceModel);
<span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span> headerData(<span class="type">int</span> section<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Orientation orientation<span class="operator">,</span> <span class="type">int</span> role <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>DisplayRole) <span class="keyword">const</span>;
<span class="type">int</span> rowCount(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type">int</span> columnCount(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> index(<span class="type">int</span><span class="operator">,</span> <span class="type">int</span><span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span><span class="operator">&</span> <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> parent(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span><span class="operator">&</span> index<span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
bool removeRows(<span class="type">int</span> row<span class="operator">,</span> <span class="type">int</span> count<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>());
<span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span> data(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>index<span class="operator">,</span> <span class="type">int</span> role <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>DisplayRole) <span class="keyword">const</span>;
<span class="keyword">private</span> <span class="keyword">slots</span>:
<span class="type">void</span> sourceReset();
<span class="type">void</span> sourceDataChanged(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>topLeft<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>bottomRight);
<span class="type">void</span> sourceRowsInserted(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent<span class="operator">,</span> <span class="type">int</span> start<span class="operator">,</span> <span class="type">int</span> end);
<span class="type">void</span> sourceRowsRemoved(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span><span class="operator">,</span> <span class="type">int</span><span class="operator">,</span> <span class="type">int</span>);
<span class="keyword">private</span>:
<span class="type">void</span> load() <span class="keyword">const</span>;
<span class="keyword">mutable</span> <span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type">int</span><span class="operator">></span> m_sourceRow;
<span class="keyword">mutable</span> <span class="type"><a href="../qtcore/qhash.html">QHash</a></span><span class="operator"><</span><span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">,</span> <span class="type">int</span><span class="operator">></span> m_historyHash;
<span class="keyword">mutable</span> bool m_loaded;
};
<span class="comment">/*
The history menu
- Removes the first twenty entries and puts them as children of the top level.
- If there are less then twenty entries then the first folder is also removed.
The mapping is done by knowing that HistoryTreeModel is over a table
We store that row offset in our index's private data.
*/</span>
<span class="keyword">class</span> HistoryMenuModel : <span class="keyword">public</span> <span class="type"><a href="../qtcore/qabstractproxymodel.html">QAbstractProxyModel</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
HistoryMenuModel(HistoryTreeModel <span class="operator">*</span>sourceModel<span class="operator">,</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>);
<span class="type">int</span> columnCount(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent) <span class="keyword">const</span>;
<span class="type">int</span> rowCount(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> mapFromSource(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span> sourceIndex) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> mapToSource(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span> proxyIndex) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> index(<span class="type">int</span><span class="operator">,</span> <span class="type">int</span><span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> parent(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>index <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type">int</span> bumpedRows() <span class="keyword">const</span>;
<span class="keyword">private</span>:
HistoryTreeModel <span class="operator">*</span>m_treeModel;
};
<span class="comment">// Menu that is dynamically populated from the history</span>
<span class="keyword">class</span> HistoryMenu : <span class="keyword">public</span> ModelMenu
{
Q_OBJECT
<span class="keyword">signals</span>:
<span class="type">void</span> openUrl(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qurl.html">QUrl</a></span> <span class="operator">&</span>url);
<span class="keyword">public</span>:
HistoryMenu(<span class="type"><a href="../qtwidgets/qwidget.html">QWidget</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>);
<span class="type">void</span> setInitialActions(<span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="../qtwidgets/qaction.html">QAction</a></span><span class="operator">*</span><span class="operator">></span> actions);
<span class="keyword">protected</span>:
bool prePopulated();
<span class="type">void</span> postPopulated();
<span class="keyword">private</span> <span class="keyword">slots</span>:
<span class="type">void</span> activated(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>index);
<span class="type">void</span> showHistoryDialog();
<span class="keyword">private</span>:
HistoryManager <span class="operator">*</span>m_history;
HistoryMenuModel <span class="operator">*</span>m_historyMenuModel;
<span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type"><a href="../qtwidgets/qaction.html">QAction</a></span><span class="operator">*</span><span class="operator">></span> m_initialActions;
};
<span class="comment">// proxy model for the history model that</span>
<span class="comment">// exposes each url http://www.foo.com and it url starting at the host www.foo.com</span>
<span class="keyword">class</span> HistoryCompletionModel : <span class="keyword">public</span> <span class="type"><a href="../qtcore/qabstractproxymodel.html">QAbstractProxyModel</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
HistoryCompletionModel(<span class="type"><a href="../qtcore/qobject.html">QObject</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>);
<span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span> data(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>index<span class="operator">,</span> <span class="type">int</span> role <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>DisplayRole) <span class="keyword">const</span>;
<span class="type">int</span> rowCount(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type">int</span> columnCount(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> mapFromSource(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>sourceIndex) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> mapToSource(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>proxyIndex) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> index(<span class="type">int</span><span class="operator">,</span> <span class="type">int</span><span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span><span class="operator">&</span> <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> parent(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span><span class="operator">&</span> index<span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type">void</span> setSourceModel(<span class="type"><a href="../qtcore/qabstractitemmodel.html">QAbstractItemModel</a></span> <span class="operator">*</span>sourceModel);
<span class="keyword">private</span> <span class="keyword">slots</span>:
<span class="type">void</span> sourceReset();
};
<span class="comment">// proxy model for the history model that converts the list</span>
<span class="comment">// into a tree, one top level node per day.</span>
<span class="comment">// Used in the HistoryDialog.</span>
<span class="keyword">class</span> HistoryTreeModel : <span class="keyword">public</span> <span class="type"><a href="../qtcore/qabstractproxymodel.html">QAbstractProxyModel</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
HistoryTreeModel(<span class="type"><a href="../qtcore/qabstractitemmodel.html">QAbstractItemModel</a></span> <span class="operator">*</span>sourceModel<span class="operator">,</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>);
<span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span> data(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>index<span class="operator">,</span> <span class="type">int</span> role <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>DisplayRole) <span class="keyword">const</span>;
<span class="type">int</span> columnCount(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent) <span class="keyword">const</span>;
<span class="type">int</span> rowCount(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> mapFromSource(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>sourceIndex) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> mapToSource(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>proxyIndex) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> index(<span class="type">int</span> row<span class="operator">,</span> <span class="type">int</span> column<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> parent(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>index<span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
bool hasChildren(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()) <span class="keyword">const</span>;
<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemFlags flags(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>index) <span class="keyword">const</span>;
bool removeRows(<span class="type">int</span> row<span class="operator">,</span> <span class="type">int</span> count<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent <span class="operator">=</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>());
<span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span> headerData(<span class="type">int</span> section<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Orientation orientation<span class="operator">,</span> <span class="type">int</span> role <span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>DisplayRole) <span class="keyword">const</span>;
<span class="type">void</span> setSourceModel(<span class="type"><a href="../qtcore/qabstractitemmodel.html">QAbstractItemModel</a></span> <span class="operator">*</span>sourceModel);
<span class="keyword">private</span> <span class="keyword">slots</span>:
<span class="type">void</span> sourceReset();
<span class="type">void</span> sourceRowsInserted(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent<span class="operator">,</span> <span class="type">int</span> start<span class="operator">,</span> <span class="type">int</span> end);
<span class="type">void</span> sourceRowsRemoved(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>parent<span class="operator">,</span> <span class="type">int</span> start<span class="operator">,</span> <span class="type">int</span> end);
<span class="keyword">private</span>:
<span class="type">int</span> sourceDateRow(<span class="type">int</span> row) <span class="keyword">const</span>;
<span class="keyword">mutable</span> <span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span><span class="type">int</span><span class="operator">></span> m_sourceRowCache;
};
<span class="comment">// A modified QSortFilterProxyModel that always accepts the root nodes in the tree</span>
<span class="comment">// so filtering is only done on the children.</span>
<span class="comment">// Used in the HistoryDialog</span>
<span class="keyword">class</span> TreeProxyModel : <span class="keyword">public</span> <span class="type"><a href="../qtcore/qsortfilterproxymodel.html">QSortFilterProxyModel</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
TreeProxyModel(<span class="type"><a href="../qtcore/qobject.html">QObject</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>);
<span class="keyword">protected</span>:
bool filterAcceptsRow(<span class="type">int</span> source_row<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&</span>source_parent) <span class="keyword">const</span>;
};
<span class="preprocessor">#include "ui_history.h"</span>
<span class="keyword">class</span> HistoryDialog : <span class="keyword">public</span> <span class="type"><a href="../qtwidgets/qdialog.html">QDialog</a></span><span class="operator">,</span> <span class="keyword">public</span> Ui_HistoryDialog
{
Q_OBJECT
<span class="keyword">signals</span>:
<span class="type">void</span> openUrl(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qurl.html">QUrl</a></span> <span class="operator">&</span>url);
<span class="keyword">public</span>:
HistoryDialog(<span class="type"><a href="../qtwidgets/qwidget.html">QWidget</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span><span class="operator">,</span> HistoryManager <span class="operator">*</span>history <span class="operator">=</span> <span class="number">0</span>);
<span class="keyword">private</span> <span class="keyword">slots</span>:
<span class="type">void</span> customContextMenuRequested(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qpoint.html">QPoint</a></span> <span class="operator">&</span>pos);
<span class="type">void</span> open();
<span class="type">void</span> copy();
};
<span class="preprocessor">#endif // HISTORY_H</span></pre>
</div>
<!-- @@@webkitwidgets/browser/history.h -->
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<p>
<acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd.
Documentation contributions included herein are the copyrights of
their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property
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