// Convenience to create a Dom Widget from widget box xml code.
DomUI *QDesignerWidgetBox::xmlToUi(const QString &name, const QString &xml, bool insertFakeTopLevel, QString *errorMessage)
{
QDomDocument doc;
int errorLine, errorColumn;
if (!doc.setContent(xml, errorMessage, &errorLine, &errorColumn)) {
*errorMessage = QObject::tr("A parse error occurred at line %1, column %2 of the XML code specified for the widget %3: %4\n%5").
arg(errorLine).arg(errorColumn).arg(name).arg(*errorMessage).arg(xml);
return 0;
}
if (!doc.hasChildNodes()) {
*errorMessage = QObject::tr("The XML code specified for the widget %1 does not contain any widget elements.\n%2").arg(name).arg(xml);
return 0;
}
QDomElement rootElement = doc.firstChildElement();
const QString rootNode = rootElement.nodeName();
const QString widgetTag = QLatin1String("widget");
if (rootNode == widgetTag) { // 4.3 legacy ,wrap into DomUI
DomUI *rc = new DomUI;
DomWidget *widget = new DomWidget;
widget->read(rootElement);
if (insertFakeTopLevel) {
DomWidget *fakeTopLevel = new DomWidget;
QList<DomWidget *> children;
children.push_back(widget);
fakeTopLevel->setElementWidget(children);
rc->setElementWidget(fakeTopLevel);
} else {
rc->setElementWidget(widget);
}
return rc;
}
if (rootNode == QLatin1String("ui")) { // 4.4
QDomElement widgetChild = rootElement.firstChildElement(widgetTag);
if (widgetChild.isNull()) {
*errorMessage = QObject::tr("The XML code specified for the widget %1 does not contain valid widget element\n%2").arg(name).arg(xml);
return 0;
}
if (insertFakeTopLevel) {
QDomElement fakeTopLevel = doc.createElement(widgetTag);
rootElement.replaceChild(fakeTopLevel, widgetChild);
fakeTopLevel.appendChild(widgetChild);
}
DomUI *rc = new DomUI;
rc->read(rootElement);
return rc;
}
*errorMessage = QObject::tr("The XML code specified for the widget %1 contains an invalid root element %2.\n%3").arg(name).arg(rootNode).arg(xml);
return 0;
}
// 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;
}
void Ui3Reader::generateUi4(const QString &fn, const QString &outputFn, QDomDocument doc)
{
init();
fileName = fn;
outputFileName = outputFn;
DomUI *ui = generateUi4(parse(doc));
if (!ui)
return;
if (pixmapLoaderFunction.size())
ui->setElementPixmapFunction(pixmapLoaderFunction);
QXmlStreamWriter writer(out.device());
writer.setAutoFormatting(true);
writer.setAutoFormattingIndent(2);
writer.writeStartDocument();
ui->write(writer);
writer.writeEndDocument();
delete ui;
}
// Set a fixed size on a XML template
QString WidgetDataBase::scaleFormTemplate(const QString &xml, const QSize &size, bool fixed)
{
typedef QList<DomProperty*> PropertyList;
DomUI *domUI = QDesignerWidgetBox::xmlToUi(QLatin1String("Form"), xml, false);
if (!domUI)
return QString();
DomWidget *domWidget = domUI->elementWidget();
if (!domWidget)
return QString();
// Properties: Find/Ensure the geometry, minimum and maximum sizes properties
const QString geometryPropertyName = QLatin1String("geometry");
const QString minimumSizePropertyName = QLatin1String("minimumSize");
const QString maximumSizePropertyName = QLatin1String("maximumSize");
DomProperty *geomProperty = 0;
DomProperty *minimumSizeProperty = 0;
DomProperty *maximumSizeProperty = 0;
PropertyList properties = domWidget->elementProperty();
const PropertyList::const_iterator cend = properties.constEnd();
for (PropertyList::const_iterator it = properties.constBegin(); it != cend; ++it) {
const QString name = (*it)->attributeName();
if (name == geometryPropertyName) {
geomProperty = *it;
} else {
if (name == minimumSizePropertyName) {
minimumSizeProperty = *it;
} else {
if (name == maximumSizePropertyName)
maximumSizeProperty = *it;
}
}
}
if (!geomProperty) {
geomProperty = new DomProperty;
geomProperty->setAttributeName(geometryPropertyName);
geomProperty->setElementRect(new DomRect);
properties.push_front(geomProperty);
}
if (fixed) {
if (!minimumSizeProperty) {
minimumSizeProperty = new DomProperty;
minimumSizeProperty->setAttributeName(minimumSizePropertyName);
minimumSizeProperty->setElementSize(new DomSize);
properties.push_back(minimumSizeProperty);
}
if (!maximumSizeProperty) {
maximumSizeProperty = new DomProperty;
maximumSizeProperty->setAttributeName(maximumSizePropertyName);
maximumSizeProperty->setElementSize(new DomSize);
properties.push_back(maximumSizeProperty);
}
}
// Set values of geometry, minimum and maximum sizes properties
const int width = size.width();
const int height = size.height();
if (DomRect *geom = geomProperty->elementRect()) {
geom->setElementWidth(width);
geom->setElementHeight(height);
}
if (fixed) {
if (DomSize *s = minimumSizeProperty->elementSize()) {
s->setElementWidth(width);
s->setElementHeight(height);
}
if (DomSize *s = maximumSizeProperty->elementSize()) {
s->setElementWidth(width);
s->setElementHeight(height);
}
}
// write back
domWidget->setElementProperty(properties);
QString rc;
{ // serialize domUI
QXmlStreamWriter writer(&rc);
writer.setAutoFormatting(true);
writer.setAutoFormattingIndent(1);
writer.writeStartDocument();
domUI->write(writer);
writer.writeEndDocument();
}
delete domUI;
return rc;
}
// Get XML for a new form from the widget box. Change objectName/geometry
// properties to be suitable for new forms
static QString xmlFromWidgetBox(const QDesignerFormEditorInterface *core, const QString &className, const QString &objectName)
{
typedef QList<DomProperty*> PropertyList;
QDesignerWidgetBoxInterface::Widget widget;
const bool found = QDesignerWidgetBox::findWidget(core->widgetBox(), className, QString(), &widget);
if (!found)
return QString();
DomUI *domUI = QDesignerWidgetBox::xmlToUi(className, widget.domXml(), false);
domUI->setAttributeVersion(QLatin1String("4.0"));
if (!domUI)
return QString();
DomWidget *domWidget = domUI->elementWidget();
if (!domWidget)
return QString();
// Properties: Remove the "objectName" property in favour of the name attribute and check geometry.
domWidget->setAttributeName(objectName);
const QString geometryProperty = QLatin1String("geometry");
const QString objectNameProperty = QLatin1String("objectName");
PropertyList properties = domWidget->elementProperty();
for (PropertyList::iterator it = properties.begin(); it != properties.end(); ) {
DomProperty *property = *it;
if (property->attributeName() == objectNameProperty) { // remove "objectName"
it = properties.erase(it);
delete property;
} else {
if (property->attributeName() == geometryProperty) { // Make sure form is at least 400, 300
if (DomRect *geom = property->elementRect()) {
if (geom->elementWidth() < NewFormWidth)
geom->setElementWidth(NewFormWidth);
if (geom->elementHeight() < NewFormHeight)
geom->setElementHeight(NewFormHeight);
}
}
++it;
}
}
// Add a window title property
DomString *windowTitleString = new DomString;
windowTitleString->setText(objectName);
DomProperty *windowTitleProperty = new DomProperty;
windowTitleProperty->setAttributeName(QLatin1String("windowTitle"));
windowTitleProperty->setElementString(windowTitleString);
properties.push_back(windowTitleProperty);
// ------
domWidget->setElementProperty(properties);
// Embed in in DomUI and get string. Omit the version number.
domUI->setElementClass(objectName);
QString rc;
{ // Serialize domUI
QXmlStreamWriter writer(&rc);
writer.setAutoFormatting(true);
writer.setAutoFormattingIndent(1);
writer.writeStartDocument();
domUI->write(writer);
writer.writeEndDocument();
}
delete domUI;
return rc;
}