source: trunk/src/gui/dialogs/qfilesystemmodel_p.h@ 5

Last change on this file since 5 was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 11.5 KB
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1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information ([email protected])
5**
6** This file is part of the QtGui module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
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11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
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19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
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28** GNU General Public License Usage
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40****************************************************************************/
41
42#ifndef QFILESYSTEMMODEL_P_H
43#define QFILESYSTEMMODEL_P_H
44
45//
46// W A R N I N G
47// -------------
48//
49// This file is not part of the Qt API. It exists purely as an
50// implementation detail. This header file may change from version to
51// version without notice, or even be removed.
52//
53// We mean it.
54//
55
56#include "qfilesystemmodel.h"
57
58#ifndef QT_NO_FILESYSTEMMODEL
59
60#include <private/qabstractitemmodel_p.h>
61#include <qabstractitemmodel.h>
62#include "qfileinfogatherer_p.h"
63#include <qpair.h>
64#include <qdir.h>
65#include <qicon.h>
66#include <qdir.h>
67#include <qicon.h>
68#include <qfileinfo.h>
69#include <qtimer.h>
70#include <qhash.h>
71
72QT_BEGIN_NAMESPACE
73
74class ExtendedInformation;
75class QFileSystemModelPrivate;
76class QFileIconProvider;
77
78class Q_AUTOTEST_EXPORT QFileSystemModelPrivate : public QAbstractItemModelPrivate
79{
80 Q_DECLARE_PUBLIC(QFileSystemModel)
81
82public:
83 class QFileSystemNode
84 {
85 public:
86 QFileSystemNode(const QString &filename = QString(), QFileSystemNode *p = 0)
87 : fileName(filename), populatedChildren(false), isVisible(false), parent(p), info(0) {}
88 ~QFileSystemNode() {
89 QHash<QString, QFileSystemNode*>::const_iterator i = children.constBegin();
90 while (i != children.constEnd()) {
91 delete i.value();
92 ++i;
93 }
94 delete info;
95 info = 0;
96 parent = 0;
97 }
98
99 QString fileName;
100
101 inline qint64 size() const { if (info && !info->isDir()) return info->size(); return 0; }
102 inline QString type() const { if (info) return info->displayType; return QLatin1String(""); }
103 inline QDateTime lastModified() const { if (info) return info->lastModified(); return QDateTime(); }
104 inline QFile::Permissions permissions() const { if (info) return info->permissions(); return 0; }
105 inline bool isReadable() const { return ((permissions() & QFile::ReadUser) != 0); }
106 inline bool isWritable() const { return ((permissions() & QFile::WriteUser) != 0); }
107 inline bool isExecutable() const { return ((permissions() & QFile::ExeUser) != 0); }
108 inline bool isDir() const {
109 if (info)
110 return info->isDir();
111 if (children.count() > 0)
112 return true;
113 return false;
114 }
115 inline bool isFile() const { if (info) return info->isFile(); return true; }
116 inline bool isSystem() const { if (info) return info->isSystem(); return true; }
117 inline bool isHidden() const { if (info) return info->isHidden(); return false; }
118 inline bool isSymLink() const { if (info) return info->isSymLink(); return false; }
119 inline bool caseSensitive() const { if (info) return info->isCaseSensitive(); return false; }
120 inline QIcon icon() const { if (info) return info->icon; return QIcon(); }
121
122 inline bool operator <(const QFileSystemNode &node) const {
123 if (caseSensitive() || node.caseSensitive())
124 return fileName < node.fileName;
125 return QString::compare(fileName, node.fileName, Qt::CaseInsensitive) < 0;
126 }
127 inline bool operator >(const QString &name) const {
128 if (caseSensitive())
129 return fileName > name;
130 return QString::compare(fileName, name, Qt::CaseInsensitive) > 0;
131 }
132 inline bool operator <(const QString &name) const {
133 if (caseSensitive())
134 return fileName < name;
135 return QString::compare(fileName, name, Qt::CaseInsensitive) < 0;
136 }
137 inline bool operator !=(const QExtendedInformation &fileInfo) const {
138 return !operator==(fileInfo);
139 }
140 bool operator ==(const QString &name) const {
141 if (caseSensitive())
142 return fileName == name;
143 return QString::compare(fileName, name, Qt::CaseInsensitive) == 0;
144 }
145 bool operator ==(const QExtendedInformation &fileInfo) const {
146 return info && (*info == fileInfo);
147 }
148
149 inline bool hasInformation() const { return info != 0; }
150
151 void populate(const QExtendedInformation &fileInfo) {
152 if (!info)
153 info = new QExtendedInformation(fileInfo.fileInfo());
154 (*info) = fileInfo;
155 }
156
157 // children shouldn't normally be accessed directly, use node()
158 inline int visibleLocation(QString childName) {
159 return visibleChildren.indexOf(childName);
160 }
161 void updateIcon(QFileIconProvider *iconProvider, const QString &path) {
162 if (info)
163 info->icon = iconProvider->icon(QFileInfo(path));
164 QHash<QString, QFileSystemNode *>::const_iterator iterator;
165 for(iterator = children.constBegin() ; iterator != children.constEnd() ; ++iterator) {
166 iterator.value()->updateIcon(iconProvider, path + QLatin1Char('/') + iterator.value()->fileName);
167 }
168 }
169
170 void retranslateStrings(QFileIconProvider *iconProvider, const QString &path) {
171 if (info)
172 info->displayType = iconProvider->type(QFileInfo(path));
173 QHash<QString, QFileSystemNode *>::const_iterator iterator;
174 for(iterator = children.constBegin() ; iterator != children.constEnd() ; ++iterator) {
175 iterator.value()->retranslateStrings(iconProvider, path + QLatin1Char('/') + iterator.value()->fileName);
176 }
177 }
178
179 bool populatedChildren;
180 bool isVisible;
181 QHash<QString,QFileSystemNode *> children;
182 QList<QString> visibleChildren;
183 QFileSystemNode *parent;
184
185
186 QExtendedInformation *info;
187
188 };
189
190 QFileSystemModelPrivate() :
191 forceSort(true),
192 sortColumn(0),
193 sortOrder(Qt::AscendingOrder),
194 readOnly(true),
195 setRootPath(false),
196 filters(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::AllDirs),
197 nameFilterDisables(true) // false on windows, true on mac and unix
198 {
199 delayedSortTimer.setSingleShot(true);
200 }
201
202 void init();
203 /*
204 \internal
205
206 Return true if index which is owned by node is hidden by the filter.
207 */
208 inline bool isHiddenByFilter(QFileSystemNode *indexNode, const QModelIndex &index) const
209 {
210 return (indexNode != &root && !index.isValid());
211 }
212 QFileSystemNode *node(const QModelIndex &index) const;
213 QFileSystemNode *node(const QString &path, bool fetch = true) const;
214 inline QModelIndex index(const QString &path) { return index(node(path)); }
215 QModelIndex index(const QFileSystemNode *node) const;
216 bool filtersAcceptsNode(const QFileSystemNode *node) const;
217 bool passNameFilters(const QFileSystemNode *node) const;
218 void removeNode(QFileSystemNode *parentNode, const QString &name);
219 QFileSystemNode* addNode(QFileSystemNode *parentNode, const QString &fileName, const QFileInfo &info);
220 void addVisibleFiles(QFileSystemNode *parentNode, const QStringList &newFiles);
221 void removeVisibleFile(QFileSystemNode *parentNode, int visibleLocation);
222 void sortChildren(int column, const QModelIndex &parent);
223
224 inline int translateVisibleLocation(QFileSystemNode *parent, int row) const {
225 return (sortOrder == Qt::AscendingOrder) ? row : parent->visibleChildren.count() - row - 1;
226 }
227
228 inline static QString myComputer() {
229 // ### TODO We should query the system to find out what the string should be
230 // XP == "My Computer",
231 // Vista == "Computer",
232 // OS X == "Computer" (sometime user generated) "Benjamin's PowerBook G4"
233#ifdef Q_OS_WIN
234 return QFileSystemModel::tr("My Computer");
235#else
236 return QFileSystemModel::tr("Computer");
237#endif
238 }
239
240 inline void delayedSort() {
241 if (!delayedSortTimer.isActive())
242 delayedSortTimer.start(0);
243 }
244
245 static bool caseInsensitiveLessThan(const QString &s1, const QString &s2)
246 {
247 return QString::compare(s1, s2, Qt::CaseInsensitive) < 0;
248 }
249
250 static bool nodeCaseInsensitiveLessThan(const QFileSystemModelPrivate::QFileSystemNode &s1, const QFileSystemModelPrivate::QFileSystemNode &s2)
251 {
252 return QString::compare(s1.fileName, s2.fileName, Qt::CaseInsensitive) < 0;
253 }
254
255 QIcon icon(const QModelIndex &index) const;
256 QString name(const QModelIndex &index) const;
257 QString filePath(const QModelIndex &index) const;
258 QString size(const QModelIndex &index) const;
259 static QString size(qint64 bytes);
260 QString type(const QModelIndex &index) const;
261 QString time(const QModelIndex &index) const;
262
263 void _q_directoryChanged(const QString &directory, const QStringList &list);
264 void _q_performDelayedSort();
265 void _q_fileSystemChanged(const QString &path, const QList<QPair<QString, QFileInfo> > &);
266 void _q_resolvedName(const QString &fileName, const QString &resolvedName);
267
268 static int naturalCompare(const QString &s1, const QString &s2, Qt::CaseSensitivity cs);
269
270 QDir rootDir;
271#ifndef QT_NO_FILESYSTEMWATCHER
272 QFileInfoGatherer fileInfoGatherer;
273#endif
274 QTimer delayedSortTimer;
275 bool forceSort;
276 int sortColumn;
277 Qt::SortOrder sortOrder;
278 bool readOnly;
279 bool setRootPath;
280 QDir::Filters filters;
281 QHash<const QFileSystemNode*, bool> bypassFilters;
282 bool nameFilterDisables;
283#ifndef QT_NO_REGEXP
284 QList<QRegExp> nameFilters;
285#endif
286 // ### Qt 5: resolvedSymLinks goes away
287 QHash<QString, QString> resolvedSymLinks;
288
289 QFileSystemNode root;
290
291 QBasicTimer fetchingTimer;
292 struct Fetching {
293 QString dir;
294 QString file;
295 const QFileSystemNode *node;
296 };
297 QList<Fetching> toFetch;
298
299};
300#endif // QT_NO_FILESYSTEMMODEL
301
302QT_END_NAMESPACE
303
304#endif
305
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