/**************************************************************************** | |
** | |
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
** All rights reserved. | |
** Contact: Nokia Corporation (qt-info@nokia.com) | |
** | |
** This file is part of the Qt Designer of the Qt Toolkit. | |
** | |
** $QT_BEGIN_LICENSE:LGPL$ | |
** GNU Lesser General Public License Usage | |
** This file may be used under the terms of the GNU Lesser General Public | |
** License version 2.1 as published by the Free Software Foundation and | |
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** file. Please review the following information to ensure the GNU Lesser | |
** General Public License version 2.1 requirements will be met: | |
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. | |
** | |
** In addition, as a special exception, Nokia gives you certain additional | |
** rights. These rights are described in the Nokia Qt LGPL Exception | |
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. | |
** | |
** GNU General Public License Usage | |
** Alternatively, this file may be used under the terms of the GNU General | |
** Public License version 3.0 as published by the Free Software Foundation | |
** and appearing in the file LICENSE.GPL included in the packaging of this | |
** file. Please review the following information to ensure the GNU General | |
** Public License version 3.0 requirements will be met: | |
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** | |
** Other Usage | |
** Alternatively, this file may be used in accordance with the terms and | |
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** $QT_END_LICENSE$ | |
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****************************************************************************/ | |
#include "qdesigner_widgetbox_p.h" | |
#include "qdesigner_utils_p.h" | |
#include <ui4_p.h> | |
#include <QtCore/QRegExp> | |
#include <QtCore/QDebug> | |
#include <QtCore/QXmlStreamReader> | |
QT_BEGIN_NAMESPACE | |
namespace qdesigner_internal { | |
QDesignerWidgetBox::QDesignerWidgetBox(QWidget *parent, Qt::WindowFlags flags) | |
: QDesignerWidgetBoxInterface(parent, flags), | |
m_loadMode(LoadMerge) | |
{ | |
} | |
QDesignerWidgetBox::LoadMode QDesignerWidgetBox::loadMode() const | |
{ | |
return m_loadMode; | |
} | |
void QDesignerWidgetBox::setLoadMode(LoadMode lm) | |
{ | |
m_loadMode = lm; | |
} | |
// Convenience to find a widget by class name | |
bool QDesignerWidgetBox::findWidget(const QDesignerWidgetBoxInterface *wbox, | |
const QString &className, | |
const QString &category, | |
Widget *widgetData) | |
{ | |
// Note that entry names do not necessarily match the class name | |
// (at least, not for the standard widgets), so, | |
// look in the XML for the class name of the first widget to appear | |
const QString widgetTag = QLatin1String("<widget"); | |
QString pattern = QLatin1String("^<widget\\s+class\\s*=\\s*\""); | |
pattern += className; | |
pattern += QLatin1String("\".*$"); | |
const QRegExp regexp(pattern); | |
Q_ASSERT(regexp.isValid()); | |
const int catCount = wbox->categoryCount(); | |
for (int c = 0; c < catCount; c++) { | |
const Category cat = wbox->category(c); | |
if (category.isEmpty() || cat.name() == category) { | |
const int widgetCount = cat.widgetCount(); | |
for (int w = 0; w < widgetCount; w++) { | |
const Widget widget = cat.widget(w); | |
QString xml = widget.domXml(); // Erase the <ui> tag that can be present starting from 4.4 | |
const int widgetTagIndex = xml.indexOf(widgetTag); | |
if (widgetTagIndex != -1) { | |
xml.remove(0, widgetTagIndex); | |
if (regexp.exactMatch(xml)) { | |
*widgetData = widget; | |
return true; | |
} | |
} | |
} | |
} | |
} | |
return false; | |
} | |
// Convenience to create a Dom Widget from widget box xml code. | |
DomUI *QDesignerWidgetBox::xmlToUi(const QString &name, const QString &xml, bool insertFakeTopLevel, | |
QString *errorMessage) | |
{ | |
QXmlStreamReader reader(xml); | |
DomUI *ui = 0; | |
// The xml description must either contain a root element "ui" with a child element "widget" | |
// or "widget" as the root element (4.3 legacy) | |
const QString widgetTag = QLatin1String("widget"); | |
while (!reader.atEnd()) { | |
if (reader.readNext() == QXmlStreamReader::StartElement) { | |
const QStringRef name = reader.name(); | |
if (ui) { | |
reader.raiseError(tr("Unexpected element <%1>").arg(name.toString())); | |
continue; | |
} | |
if (name.compare(QLatin1String("widget"), Qt::CaseInsensitive) == 0) { // 4.3 legacy, wrap into DomUI | |
ui = new DomUI; | |
DomWidget *widget = new DomWidget; | |
widget->read(reader); | |
ui->setElementWidget(widget); | |
} else if (name.compare(QLatin1String("ui"), Qt::CaseInsensitive) == 0) { // 4.4 | |
ui = new DomUI; | |
ui->read(reader); | |
} else { | |
reader.raiseError(tr("Unexpected element <%1>").arg(name.toString())); | |
} | |
} | |
} | |
if (reader.hasError()) { | |
delete ui; | |
*errorMessage = tr("A parse error occurred at line %1, column %2 of the XML code " | |
"specified for the widget %3: %4\n%5") | |
.arg(reader.lineNumber()).arg(reader.columnNumber()).arg(name) | |
.arg(reader.errorString()).arg(xml); | |
return 0; | |
} | |
if (!ui || !ui->elementWidget()) { | |
delete ui; | |
*errorMessage = tr("The XML code specified for the widget %1 does not contain " | |
"any widget elements.\n%2").arg(name).arg(xml); | |
return 0; | |
} | |
if (insertFakeTopLevel) { | |
DomWidget *fakeTopLevel = new DomWidget; | |
fakeTopLevel->setAttributeClass(QLatin1String("QWidget")); | |
QList<DomWidget *> children; | |
children.push_back(ui->takeElementWidget()); | |
fakeTopLevel->setElementWidget(children); | |
ui->setElementWidget(fakeTopLevel); | |
} | |
return ui; | |
} | |
// Convenience to create a Dom Widget from widget box xml code. | |
DomUI *QDesignerWidgetBox::xmlToUi(const QString &name, const QString &xml, bool insertFakeTopLevel) | |
{ | |
QString errorMessage; | |
DomUI *rc = xmlToUi(name, xml, insertFakeTopLevel, &errorMessage); | |
if (!rc) | |
qdesigner_internal::designerWarning(errorMessage); | |
return rc; | |
} | |
} // namespace qdesigner_internal | |
QT_END_NAMESPACE |