source: branches/vendor/trolltech/qt/current/tools/linguist/shared/ui.cpp @ 2

Last change on this file since 2 was 2, checked in by Dmitry A. Kuminov, 13 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.

File size: 7.2 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information (qt-info@nokia.com)
5**
6** This file is part of the Qt Linguist of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
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
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file.  Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
21** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22**
23** In addition, as a special exception, Nokia gives you certain
24** additional rights. These rights are described in the Nokia Qt LGPL
25** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26** package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file.  Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you are unsure which license is appropriate for your use, please
37** contact the sales department at qt-sales@nokia.com.
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include "translator.h"
43
44#include <QtCore/QDebug>
45#include <QtCore/QFile>
46#include <QtCore/QString>
47
48#include <QtXml/QXmlAttributes>
49#include <QtXml/QXmlDefaultHandler>
50#include <QtXml/QXmlLocator>
51#include <QtXml/QXmlParseException>
52
53
54QT_BEGIN_NAMESPACE
55
56// in cpp.cpp
57void fetchtrInlinedCpp(const QString &in, Translator &tor, const QString &context);
58
59class UiReader : public QXmlDefaultHandler
60{
61public:
62    UiReader(Translator &translator, ConversionData &cd)
63      : m_translator(translator), m_cd(cd), m_lineNumber(-1),
64        m_needUtf8(translator.codecName() != "UTF-8")
65    {}
66
67    bool startElement(const QString &namespaceURI, const QString &localName,
68        const QString &qName, const QXmlAttributes &atts);
69    bool endElement(const QString &namespaceURI, const QString &localName,
70        const QString &qName);
71    bool characters(const QString &ch);
72    bool fatalError(const QXmlParseException &exception);
73
74    void setDocumentLocator(QXmlLocator *locator) { m_locator = locator; }
75
76private:
77    void flush();
78
79    Translator &m_translator;
80    ConversionData &m_cd;
81    QString m_context;
82    QString m_source;
83    QString m_comment;
84    QXmlLocator *m_locator;
85
86    QString m_accum;
87    int m_lineNumber;
88    bool m_isTrString;
89    bool m_needUtf8;
90};
91
92bool UiReader::startElement(const QString &namespaceURI,
93    const QString &localName, const QString &qName, const QXmlAttributes &atts)
94{
95    Q_UNUSED(namespaceURI);
96    Q_UNUSED(localName);
97
98    if (qName == QLatin1String("item")) { // UI3 menu entries
99        flush();
100        if (!atts.value(QLatin1String("text")).isEmpty())
101            m_source = atts.value(QLatin1String("text"));
102    } else if (qName == QLatin1String("string")) {
103        flush();
104        if (atts.value(QLatin1String("notr")).isEmpty() ||
105            atts.value(QLatin1String("notr")) != QLatin1String("true")) {
106            m_isTrString = true;
107            m_comment = atts.value(QLatin1String("comment"));
108        } else {
109            m_isTrString = false;
110        }
111    }
112    if (m_isTrString && !m_cd.m_noUiLines)
113        m_lineNumber = m_locator->lineNumber();
114    m_accum.clear();
115    return true;
116}
117
118bool UiReader::endElement(const QString &namespaceURI,
119    const QString &localName, const QString &qName)
120{
121    Q_UNUSED(namespaceURI);
122    Q_UNUSED(localName);
123
124    m_accum.replace(QLatin1String("\r\n"), QLatin1String("\n"));
125
126    if (qName == QLatin1String("class")) { // UI "header"
127        if (m_context.isEmpty())
128            m_context = m_accum;
129    } else if (qName == QLatin1String("string") && m_isTrString) {
130        m_source = m_accum;
131    } else if (qName == QLatin1String("comment")) { // FIXME: what's that?
132        m_comment = m_accum;
133        flush();
134    } else if (qName == QLatin1String("function")) { // UI3 embedded code
135        fetchtrInlinedCpp(m_accum, m_translator, m_context);
136    } else {
137        flush();
138    }
139    return true;
140}
141
142bool UiReader::characters(const QString &ch)
143{
144    m_accum += ch;
145    return true;
146}
147
148bool UiReader::fatalError(const QXmlParseException &exception)
149{
150    QString msg;
151    msg.sprintf("XML error: Parse error at line %d, column %d (%s).",
152                 exception.lineNumber(), exception.columnNumber(),
153                 exception.message().toLatin1().data());
154    m_cd.appendError(msg);
155    return false;
156}
157
158void UiReader::flush()
159{
160    if (!m_context.isEmpty() && !m_source.isEmpty()) {
161        TranslatorMessage msg(m_context, m_source,
162           m_comment, QString(), m_cd.m_sourceFileName,
163           m_lineNumber, QStringList());
164        if (m_needUtf8 && msg.needs8Bit())
165            msg.setUtf8(true);
166        m_translator.extend(msg);
167    }
168    m_source.clear();
169    m_comment.clear();
170}
171
172bool loadUI(Translator &translator, QIODevice &dev, ConversionData &cd)
173{
174    QXmlInputSource in(&dev);
175    QXmlSimpleReader reader;
176    reader.setFeature(QLatin1String("http://xml.org/sax/features/namespaces"), false);
177    reader.setFeature(QLatin1String("http://xml.org/sax/features/namespace-prefixes"), true);
178    reader.setFeature(QLatin1String(
179            "http://trolltech.com/xml/features/report-whitespace-only-CharData"), false);
180    UiReader handler(translator, cd);
181    reader.setContentHandler(&handler);
182    reader.setErrorHandler(&handler);
183    bool result = reader.parse(in);
184    if (!result)
185        cd.appendError(QLatin1String("Parse error in UI file"));
186    reader.setContentHandler(0);
187    reader.setErrorHandler(0);
188    return result;
189}
190
191bool saveUI(const Translator &translator, QIODevice &dev, ConversionData &cd)
192{
193    Q_UNUSED(dev);
194    Q_UNUSED(translator);
195    cd.appendError(QLatin1String("Cannot save .ui files"));
196    return false;
197}
198
199int initUI()
200{
201    Translator::FileFormat format;
202
203    // "real" Qt Designer
204    format.extension = QLatin1String("ui");
205    format.description = QObject::tr("Qt Designer form files");
206    format.fileType = Translator::FileFormat::SourceCode;
207    format.priority = 0;
208    format.loader = &loadUI;
209    format.saver = &saveUI;
210    Translator::registerFileFormat(format);
211
212    // same for jambi
213    format.extension = QLatin1String("jui");
214    format.description = QObject::tr("Qt Jambi form files");
215    format.fileType = Translator::FileFormat::SourceCode;
216    format.priority = 0;
217    format.loader = &loadUI;
218    format.saver = &saveUI;
219    Translator::registerFileFormat(format);
220
221    return 1;
222}
223
224Q_CONSTRUCTOR_FUNCTION(initUI)
225
226QT_END_NAMESPACE
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