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comparison src/xlsx/xlsxrelationships.cpp @ 1:93d3106bb9a4

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Add qt xlsx library
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 22 Mar 2016 10:38:08 +0100
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0:49cd5cc0b072 1:93d3106bb9a4
1 /****************************************************************************
2 ** Copyright (c) 2013-2014 Debao Zhang <hello@debao.me>
3 ** All right reserved.
4 **
5 ** Permission is hereby granted, free of charge, to any person obtaining
6 ** a copy of this software and associated documentation files (the
7 ** "Software"), to deal in the Software without restriction, including
8 ** without limitation the rights to use, copy, modify, merge, publish,
9 ** distribute, sublicense, and/or sell copies of the Software, and to
10 ** permit persons to whom the Software is furnished to do so, subject to
11 ** the following conditions:
12 **
13 ** The above copyright notice and this permission notice shall be
14 ** included in all copies or substantial portions of the Software.
15 **
16 ** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 ** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 ** LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 ** OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 ** WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 **
24 ****************************************************************************/
25 #include "xlsxrelationships_p.h"
26 #include <QXmlStreamWriter>
27 #include <QXmlStreamReader>
28 #include <QDir>
29 #include <QFile>
30 #include <QBuffer>
31
32 namespace QXlsx {
33
34 const QString schema_doc = QStringLiteral("http://schemas.openxmlformats.org/officeDocument/2006/relationships");
35 const QString schema_msPackage = QStringLiteral("http://schemas.microsoft.com/office/2006/relationships");
36 const QString schema_package = QStringLiteral("http://schemas.openxmlformats.org/package/2006/relationships");
37 //const QString schema_worksheet = QStringLiteral("http://schemas.openxmlformats.org/officeDocument/2006/relationships");
38 Relationships::Relationships()
39 {
40 }
41
42 QList<XlsxRelationship> Relationships::documentRelationships(const QString &relativeType) const
43 {
44 return relationships(schema_doc + relativeType);
45 }
46
47 void Relationships::addDocumentRelationship(const QString &relativeType, const QString &target)
48 {
49 addRelationship(schema_doc + relativeType, target);
50 }
51
52 QList<XlsxRelationship> Relationships::msPackageRelationships(const QString &relativeType) const
53 {
54 return relationships(schema_msPackage + relativeType);
55 }
56
57 void Relationships::addMsPackageRelationship(const QString &relativeType, const QString &target)
58 {
59 addRelationship(schema_msPackage + relativeType, target);
60 }
61
62 QList<XlsxRelationship> Relationships::packageRelationships(const QString &relativeType) const
63 {
64 return relationships(schema_package + relativeType);
65 }
66
67 void Relationships::addPackageRelationship(const QString &relativeType, const QString &target)
68 {
69 addRelationship(schema_package + relativeType, target);
70 }
71
72 QList<XlsxRelationship> Relationships::worksheetRelationships(const QString &relativeType) const
73 {
74 return relationships(schema_doc + relativeType);
75 }
76
77 void Relationships::addWorksheetRelationship(const QString &relativeType, const QString &target, const QString &targetMode)
78 {
79 addRelationship(schema_doc + relativeType, target, targetMode);
80 }
81
82 QList<XlsxRelationship> Relationships::relationships(const QString &type) const
83 {
84 QList<XlsxRelationship> res;
85 foreach (XlsxRelationship ship, m_relationships) {
86 if (ship.type == type)
87 res.append(ship);
88 }
89 return res;
90 }
91
92 void Relationships::addRelationship(const QString &type, const QString &target, const QString &targetMode)
93 {
94 XlsxRelationship relation;
95 relation.id = QStringLiteral("rId%1").arg(m_relationships.size()+1);
96 relation.type = type;
97 relation.target = target;
98 relation.targetMode = targetMode;
99
100 m_relationships.append(relation);
101 }
102
103 void Relationships::saveToXmlFile(QIODevice *device) const
104 {
105 QXmlStreamWriter writer(device);
106
107 writer.writeStartDocument(QStringLiteral("1.0"), true);
108 writer.writeStartElement(QStringLiteral("Relationships"));
109 writer.writeAttribute(QStringLiteral("xmlns"), QStringLiteral("http://schemas.openxmlformats.org/package/2006/relationships"));
110 foreach (XlsxRelationship relation, m_relationships) {
111 writer.writeStartElement(QStringLiteral("Relationship"));
112 writer.writeAttribute(QStringLiteral("Id"), relation.id);
113 writer.writeAttribute(QStringLiteral("Type"), relation.type);
114 writer.writeAttribute(QStringLiteral("Target"), relation.target);
115 if (!relation.targetMode.isNull())
116 writer.writeAttribute(QStringLiteral("TargetMode"), relation.targetMode);
117 writer.writeEndElement();
118 }
119 writer.writeEndElement();//Relationships
120 writer.writeEndDocument();
121 }
122
123 QByteArray Relationships::saveToXmlData() const
124 {
125 QByteArray data;
126 QBuffer buffer(&data);
127 buffer.open(QIODevice::WriteOnly);
128 saveToXmlFile(&buffer);
129
130 return data;
131 }
132
133 bool Relationships::loadFromXmlFile(QIODevice *device)
134 {
135 clear();
136 QXmlStreamReader reader(device);
137 while (!reader.atEnd()) {
138 QXmlStreamReader::TokenType token = reader.readNext();
139 if (token == QXmlStreamReader::StartElement) {
140 if (reader.name() == QStringLiteral("Relationship")) {
141 QXmlStreamAttributes attributes = reader.attributes();
142 XlsxRelationship relationship;
143 relationship.id = attributes.value(QLatin1String("Id")).toString();
144 relationship.type = attributes.value(QLatin1String("Type")).toString();
145 relationship.target = attributes.value(QLatin1String("Target")).toString();
146 relationship.targetMode = attributes.value(QLatin1String("TargetMode")).toString();
147 m_relationships.append(relationship);
148 }
149 }
150
151 if (reader.hasError())
152 return false;
153 }
154 return true;
155 }
156
157 bool Relationships::loadFromXmlData(const QByteArray &data)
158 {
159 QBuffer buffer;
160 buffer.setData(data);
161 buffer.open(QIODevice::ReadOnly);
162 return loadFromXmlFile(&buffer);
163 }
164
165 XlsxRelationship Relationships::getRelationshipById(const QString &id) const
166 {
167 foreach (XlsxRelationship ship, m_relationships) {
168 if (ship.id == id)
169 return ship;
170 }
171 return XlsxRelationship();
172 }
173
174 void Relationships::clear()
175 {
176 m_relationships.clear();
177 }
178
179 int Relationships::count() const
180 {
181 return m_relationships.count();
182 }
183
184 bool Relationships::isEmpty() const
185 {
186 return m_relationships.isEmpty();
187 }
188
189 } //namespace
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