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comparison generator/uiconverter.cpp @ 1:e78566595089

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author mandel
date Mon, 11 May 2009 16:01:50 +0000
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0:36fb74dc547d 1:e78566595089
1 /****************************************************************************
2 **
3 ** Copyright (C) 1992-2008 Nokia. All rights reserved.
4 **
5 ** This file is part of Qt Jambi.
6 **
7 ** * Commercial Usage
8 * Licensees holding valid Qt Commercial licenses may use this file in
9 * accordance with the Qt Commercial License Agreement provided with the
10 * Software or, alternatively, in accordance with the terms contained in
11 * a written agreement between you and Nokia.
12 *
13 *
14 * GNU General Public License Usage
15 * Alternatively, this file may be used under the terms of the GNU
16 * General Public License versions 2.0 or 3.0 as published by the Free
17 * Software Foundation and appearing in the file LICENSE.GPL included in
18 * the packaging of this file. Please review the following information
19 * to ensure GNU General Public Licensing requirements will be met:
20 * http://www.fsf.org/licensing/licenses/info/GPLv2.html and
21 * http://www.gnu.org/copyleft/gpl.html. In addition, as a special
22 * exception, Nokia gives you certain additional rights. These rights
23 * are described in the Nokia Qt GPL Exception version 1.2, included in
24 * the file GPL_EXCEPTION.txt in this package.
25 *
26 * Qt for Windows(R) Licensees
27 * As a special exception, Nokia, as the sole copyright holder for Qt
28 * Designer, grants users of the Qt/Eclipse Integration plug-in the
29 * right for the Qt/Eclipse Integration to link to functionality
30 * provided by Qt Designer and its related libraries.
31 *
32 *
33 * If you are unsure which license is appropriate for your use, please
34 * contact the sales department at qt-sales@nokia.com.
35
36 **
37 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
38 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
39 **
40 ****************************************************************************/
41
42 #include "uiconverter.h"
43 #include "metajava.h"
44
45 #include "reporthandler.h"
46
47 #include <QtCore/QFileInfo>
48 #include <QtXml/QDomDocument>
49
50 void UiConverter::convertToJui(const QString &uiFile, const QString &customWidgetFiles)
51 {
52 ReportHandler::setContext(QLatin1String("UiConverter to .jui"));
53
54 traverseCustomWidgets(customWidgetFiles);
55
56 QFileInfo fileInfo(uiFile);
57
58 if (!fileInfo.exists()) {
59 ReportHandler::warning(QString::fromLatin1("Ui File %1 doesn't exist...\n").arg(uiFile));
60 return;
61 }
62
63 if (fileInfo.suffix() != QLatin1String("ui")) {
64 ReportHandler::warning(QString::fromLatin1("File doesn't have .ui extension: %1")
65 .arg(uiFile));
66 return;
67 }
68
69 QString juiFile = fileInfo.absolutePath() + QLatin1Char('/') + fileInfo.baseName()
70 + QLatin1String(".jui");
71
72 QFile inputFile(uiFile);
73
74 if (!inputFile.open(QFile::ReadOnly | QFile::Text)) {
75 ReportHandler::warning(QString::fromLatin1("Could not open '%1' for reading").arg(uiFile));
76 return;
77 }
78
79 QDomDocument dom;
80 QString error;
81 if (!dom.setContent(&inputFile, false, &error)) {
82 ReportHandler::warning(QString::fromLatin1("Xml loading %1 failed: %2")
83 .arg(uiFile).arg(error));
84 inputFile.close();
85 return;
86 }
87 inputFile.close();
88
89 QDomNodeList customWidgets = dom.documentElement().elementsByTagName("customwidget");
90 for (int i=0; i<customWidgets.size(); ++i) {
91 QDomNode customWidget = customWidgets.at(i);
92
93 QDomElement el = customWidget.toElement();
94 fixCustomWidgetNode(el, &dom);
95 }
96
97 traverse(dom.documentElement(), &dom);
98
99 QFile outputFile(juiFile);
100 if (!outputFile.open(QFile::WriteOnly | QFile::Text)) {
101 ReportHandler::warning(QString::fromLatin1("Could not open '%1' for writing")
102 .arg(juiFile));
103 return;
104 }
105
106 outputFile.write(dom.toByteArray());
107 outputFile.close();
108 }
109
110 void UiConverter::traverseCustomWidgetFile(const QString &customWidgetFile)
111 {
112 if (customWidgetFile.isEmpty())
113 return;
114
115 QFile file(customWidgetFile);
116 if (!file.open(QIODevice::ReadOnly)) {
117 ReportHandler::warning("Can't read custom widget file '"
118 + customWidgetFile
119 + "'");
120 return;
121 }
122
123 QXmlStreamReader reader(&file);
124 while (!reader.atEnd()) {
125 reader.readNext();
126 if (reader.isStartElement() && reader.name() == "qt-jambi-custom-widget") {
127 QXmlStreamAttributes attributes = reader.attributes();
128 QString className = attributes.value("class").toString();
129
130 int pos = className.lastIndexOf(".");
131 m_custom_widgets.insertMulti(className.mid(pos+1), CustomWidget(className, 0));
132 }
133 }
134
135 if (reader.hasError()) {
136 ReportHandler::warning("Error when parsing custom widget file '"
137 + customWidgetFile
138 + "': "
139 + reader.errorString());
140 }
141 }
142
143 void UiConverter::traverseCustomWidgets(const QString &customWidgetFiles)
144 {
145 #ifdef Q_OS_WIN32
146 char separator = ';';
147 #else
148 char separator = ':';
149 #endif
150
151 QStringList customWidgets = customWidgetFiles.split(separator);
152 foreach (QString customWidget, customWidgets)
153 traverseCustomWidgetFile(customWidget);
154 }
155
156 void UiConverter::traverse(QDomNode node, QDomDocument *doc)
157 {
158 if (node.isNull())
159 return;
160
161 QDomElement element = node.toElement();
162 if (!element.isNull()) {
163 if (element.nodeName() == QLatin1String("ui"))
164 fixUiNode(element, doc);
165 else if (element.nodeName() == QLatin1String("set"))
166 fixSetNode(element, doc);
167 else if (element.nodeName() == QLatin1String("enum"))
168 fixEnumNode(element, doc);
169 else if (element.nodeName() == QLatin1String("connection"))
170 fixConnectionNode(element, doc);
171 else if (element.nodeName() == QLatin1String("widget"))
172 fixWidgetNode(element, doc);
173 }
174
175 QDomNodeList list = node.childNodes();
176 for (int i=0; i<list.size(); ++i)
177 traverse(list.at(i), doc);
178 }
179
180
181 void UiConverter::fixUiNode(QDomElement el, QDomDocument *)
182 {
183 el.setAttribute("language", "jambi");
184 }
185
186 void UiConverter::fixCustomWidgetNode(QDomElement el, QDomDocument *)
187 {
188 QDomNodeList classes = el.elementsByTagName("class");
189 if (classes.size() < 1) {
190 ReportHandler::warning("Custom widget missing 'class' child");
191 return;
192 }
193
194 QDomNodeList extendss = el.elementsByTagName("extends");
195 if (extendss.size() < 1) {
196 ReportHandler::warning("Custom widget missing 'extends' child");
197 return;
198 }
199
200 QString className = classes.at(0).toElement().text();
201 QString extends = extendss.at(0).toElement().text();
202
203 AbstractMetaClass *javaClass = m_java_classes.findClass(extends);
204 if (javaClass == 0) {
205 ReportHandler::warning("Couldn't find super class for custom widget: '" + extends + "'");
206 return;
207 }
208
209 QList<CustomWidget> fullNames = m_custom_widgets.values(className);
210 if (fullNames.size() == 0) {
211 ReportHandler::warning("Couldn't find custom widget entry for '" + className + "'."
212 " You need to specify this class in a custom widget file and"
213 " pass the file name on the command line using the --custom-widgets option.");
214 return;
215 }
216
217 if (fullNames.size() > 1) {
218 ReportHandler::warning("More than custom widget type matching '" + className + "'. "
219 + "Will use first seen entry: '" + fullNames.at(0).first + "'");
220 }
221
222 QString fullName = fullNames.at(0).first;
223 classes.at(0).namedItem("#text").toText().setData(fullName);
224
225 QMap<QString, CustomWidget>::iterator it;
226 for (it=m_custom_widgets.begin(); it!=m_custom_widgets.end(); ++it) {
227 if (it.key() == className)
228 (*it).second = javaClass;
229 }
230 }
231
232 void UiConverter::fixSetNode(QDomElement el, QDomDocument *)
233 {
234 QStringList cppSet = el.firstChild().nodeValue().split(QLatin1Char('|'));
235
236 QStringList javaSet;
237 for (int i=0; i<cppSet.size(); ++i)
238 javaSet << translateEnumValue(cppSet.at(i));
239
240 el.firstChild().setNodeValue(javaSet.join(QLatin1String("|")));
241 }
242
243
244 void UiConverter::fixEnumNode(QDomElement el, QDomDocument *)
245 {
246 QDomNode valueNode = el.firstChild();
247 if (valueNode.isNull()) {
248 ReportHandler::warning(QString::fromLatin1("Bad enum value at '%1'").arg(el.nodeValue()));
249 return;
250 }
251
252 QString cppEnumValue = valueNode.nodeValue();
253 QString javaEnumValue = translateEnumValue(cppEnumValue);
254 valueNode.setNodeValue(javaEnumValue);
255 }
256
257
258 void UiConverter::fixConnectionNode(QDomElement el, QDomDocument *)
259 {
260 QString senderName = el.namedItem("sender").firstChild().nodeValue();
261 AbstractMetaClass *senderClass = m_named_widgets[senderName];
262 if (!senderClass) {
263 ReportHandler::warning(QString::fromLatin1("sender unknown '%1'").arg(senderName));
264 return;
265 }
266 QDomNode signalSignatureNode = el.namedItem("signal").toElement().firstChild();
267 QString signalSignature = signalSignatureNode.nodeValue();
268 const AbstractMetaFunction *signalFunction = findFunction(senderClass,
269 signalSignature,
270 SignalSearch);
271 if (!signalFunction) {
272 ReportHandler::warning(QString::fromLatin1("Signal not found '%1' in '%2'")
273 .arg(signalSignature).arg(senderClass->qualifiedCppName()));
274 return;
275 }
276 signalSignatureNode.setNodeValue(signalFunction->modifiedName());
277
278 QString receiverName = el.namedItem("receiver").firstChild().nodeValue();
279 AbstractMetaClass *receiverClass = m_named_widgets[receiverName];
280 if (!receiverClass) {
281 ReportHandler::warning(QString::fromLatin1("receiver unknown '%1'").arg(receiverName));
282 return;
283 }
284
285 QDomNode slotSignatureNode = el.namedItem("slot").firstChild();
286 QString slotSignature = slotSignatureNode.nodeValue();
287 const AbstractMetaFunction *slotFunction = findFunction(receiverClass, slotSignature, SlotSearch);
288 if (!signalFunction) {
289 ReportHandler::warning(QString::fromLatin1("Slot not found '%1' in '%2'")
290 .arg(slotSignature).arg(receiverClass->qualifiedCppName()));
291 return;
292 }
293
294 slotSignatureNode.setNodeValue(slotFunction->targetLangSignature(true));
295 }
296
297
298 void UiConverter::fixWidgetNode(QDomElement el, QDomDocument *)
299 {
300 QString className = el.attribute(QLatin1String("class"));
301 QList<CustomWidget> customWidgetNames = m_custom_widgets.values(className);
302 QString customWidgetName = customWidgetNames.size() > 0 ? customWidgetNames.at(0).first : QString();
303
304 AbstractMetaClass *javaClass = customWidgetName.isEmpty() ? m_java_classes.findClass(className) : customWidgetNames.at(0).second;
305 if (!javaClass) {
306 ReportHandler::warning(QString::fromLatin1("Class '%1' is unknown").arg(className));
307 return;
308 }
309
310 if (!customWidgetName.isEmpty())
311 el.setAttribute(QLatin1String("class"), customWidgetName);
312 else if (javaClass->package() != QLatin1String("qt.gui"))
313 el.setAttribute(QLatin1String("class"), javaClass->fullName());
314
315 m_named_widgets.insert(el.attribute(QLatin1String("name")), javaClass);
316 }
317
318
319 QString UiConverter::translateEnumValue(const QString &cppEnumValue) {
320 if (!cppEnumValue.contains(QLatin1String("::"))) {
321 ReportHandler::warning(QString::fromLatin1("Expected '::' in enum value '%1'")
322 .arg(cppEnumValue));
323 return QString();
324 }
325
326 QStringList names = cppEnumValue.split(QLatin1String("::"));
327 AbstractMetaClass *javaClass = m_java_classes.findClass(names.at(0));
328
329 if (!javaClass) {
330 ReportHandler::warning(QString::fromLatin1("Class '%1' is unknown").arg(names.at(0)));
331 return QString();
332 }
333
334 AbstractMetaEnum *javaEnum = javaClass->findEnumForValue(names.at(1));
335 if (!javaEnum) {
336 ReportHandler::warning(QString::fromLatin1("Enum value '%1' was not found in '%2'")
337 .arg(names.at(1)).arg(names.at(0)));
338 return QString();
339 }
340
341 AbstractMetaEnumValueList enumValues = javaEnum->values();
342 AbstractMetaEnumValue *enumValue = enumValues.find(names.at(1));
343 int value = enumValue->value();
344
345 if (javaEnum->typeEntry()->isEnumValueRejected(enumValue->name())) {
346 for (int i=0; i<enumValues.size(); ++i) {
347 AbstractMetaEnumValue *ev = enumValues.at(i);
348 if (ev->value() == value) {
349 enumValue = ev;
350 break;
351 }
352 }
353 }
354
355 return javaEnum->fullName() + QLatin1String(".") + enumValue->name();
356 }
357
358 const AbstractMetaFunction *UiConverter::findFunction(AbstractMetaClass *javaClass,
359 const QString &signature,
360 SearchType type)
361 {
362 AbstractMetaFunctionList senderFunctions = javaClass->functions();
363 foreach (const AbstractMetaFunction *f, senderFunctions) {
364 if (type == SignalSearch && !f->isSignal())
365 continue;
366
367 QString fsig = f->minimalSignature();
368
369
370 int pos = 0;
371 while (pos < signature.length()
372 && fsig.constData()[pos] == signature.constData()[pos]) ++pos;
373
374 if (pos == signature.length()
375 || (type == SignalSearch
376 && pos == signature.length() - 1
377 && signature.constData()[pos] == QLatin1Char(')'))) {
378 return f;
379 }
380 }
381
382 return 0;
383 }