resource.cpp

这个是Linux的qt源代码

    ts << "</UI>" << endl;
    bool ok = saveFormCode( formwindow->formFile(), langIface );
    images.clear();

    return ok;
}

QString Resource::copy()
{
    if ( !formwindow )
	return QString::null;

    copying = TRUE;
    QString s;
    QTextOStream ts( &s );

    ts << "<!DOCTYPE UI-SELECTION><UI-SELECTION>" << endl;
    QWidgetList widgets = formwindow->selectedWidgets();
    QWidgetList tmp( widgets );
    for ( QWidget *w = widgets.first(); w; w = widgets.next() ) {
	QWidget *p = w->parentWidget();
	bool save = TRUE;
	while ( p ) {
	    if ( tmp.findRef( p ) != -1 ) {
		save = FALSE;
		break;
	    }
	    p = p->parentWidget();
	}
	if ( save )
	    saveObject( w, 0, ts, 0 );
    }
    if ( !MetaDataBase::customWidgets()->isEmpty() && !usedCustomWidgets.isEmpty() )
	saveCustomWidgets( ts, 0 );
    if ( !images.isEmpty() )
	saveImageCollection( ts, 0 );
    ts << "</UI-SELECTION>" << endl;

    return s;
}


void Resource::paste( const QString &cb, QWidget *parent )
{
    if ( !formwindow )
	return;
    mainContainerSet = TRUE;

    pasting = TRUE;
    QDomDocument doc;
    QString errMsg;
    int errLine;
    if ( !doc.setContent( cb, &errMsg, &errLine ) ) {
	qDebug( QString("Parse error: ") + errMsg + QString(" in line %d"), errLine );
    }

    QDomElement firstWidget = doc.firstChild().toElement().firstChild().toElement();

    QDomElement imageCollection = firstWidget;
    images.clear();
    while ( imageCollection.tagName() != "images" && !imageCollection.isNull() )
	imageCollection = imageCollection.nextSibling().toElement();

    QDomElement customWidgets = firstWidget;
    while ( customWidgets.tagName() != "customwidgets" && !customWidgets.isNull() )
	customWidgets = customWidgets.nextSibling().toElement();

    if ( !imageCollection.isNull() )
	loadImageCollection( imageCollection );
    if ( !customWidgets.isNull() )
	loadCustomWidgets( customWidgets, this );

    QWidgetList widgets;
    formwindow->clearSelection( FALSE );
    formwindow->setPropertyShowingBlocked( TRUE );
    formwindow->clearSelection( FALSE );
    while ( !firstWidget.isNull() ) {
	if ( firstWidget.tagName() == "widget" ) {
	    QWidget *w = (QWidget*)createObject( firstWidget, parent, 0 );
	    if ( !w )
		continue;
	    widgets.append( w );
	    int x = w->x() + formwindow->grid().x();
	    int y = w->y() + formwindow->grid().y();
	    if ( w->x() + w->width() > parent->width() )
		x = QMAX( 0, parent->width() - w->width() );
	    if ( w->y() + w->height() > parent->height() )
		y = QMAX( 0, parent->height() - w->height() );
	    if ( x != w->x() || y != w->y() )
		w->move( x, y );
	    formwindow->selectWidget( w );
	} else if ( firstWidget.tagName() == "spacer" ) {
	    QWidget *w = createSpacer( firstWidget, parent, 0, firstWidget.tagName() == "vspacer" ? Qt::Vertical : Qt::Horizontal );
	    if ( !w )
		continue;
	    widgets.append( w );
	    int x = w->x() + formwindow->grid().x();
	    int y = w->y() + formwindow->grid().y();
	    if ( w->x() + w->width() > parent->width() )
		x = QMAX( 0, parent->width() - w->width() );
	    if ( w->y() + w->height() > parent->height() )
		y = QMAX( 0, parent->height() - w->height() );
	    if ( x != w->x() || y != w->y() )
		w->move( x, y );
	    formwindow->selectWidget( w );
	}
	firstWidget = firstWidget.nextSibling().toElement();
    }
    formwindow->setPropertyShowingBlocked( FALSE );
    formwindow->emitShowProperties();

    PasteCommand *cmd = new PasteCommand( FormWindow::tr( "Paste" ), formwindow, widgets );
    formwindow->commandHistory()->addCommand( cmd );
}

void Resource::saveObject( QObject *obj, QDesignerGridLayout* grid, QTextStream &ts, int indent )
{
    if ( obj && obj->isWidgetType() && ( (QWidget*)obj )->isHidden() )
	return;
    QString closeTag;
    const char* className = WidgetFactory::classNameOf( obj );
    int classID = WidgetDatabase::idFromClassName( className );
    bool isPlugin = WidgetDatabase::isCustomPluginWidget( classID );
    if ( obj->isWidgetType() ) {
	if ( obj->isA("CustomWidget") || isPlugin ) {
	    usedCustomWidgets << QString( className );
	    includeHints << WidgetDatabase::includeFile( classID );
	}

	if ( obj != formwindow && !formwindow->widgets()->find( (QWidget*)obj ) )
	    return; // we don't know anything about this thing

	QString attributes;
	if ( grid ) {
	    QDesignerGridLayout::Item item = grid->items[ (QWidget*)obj ];
	    attributes += QString(" row=\"") + QString::number(item.row) + "\"";
	    attributes += QString(" column=\"") + QString::number(item.column) + "\"";
	    if ( item.rowspan * item.colspan != 1 ) {
		attributes += QString(" rowspan=\"") + QString::number(item.rowspan) + "\"";
		attributes += QString(" colspan=\"") + QString::number(item.colspan) + "\"";
	    }
	}

	if ( qstrcmp( className, "Spacer" ) == 0 ) {
	    closeTag = makeIndent( indent ) + "</spacer>\n";
	    ts << makeIndent( indent ) << "<spacer" << attributes << ">" << endl;
	    ++indent;
	} else {
	    closeTag = makeIndent( indent ) + "</widget>\n";
	    ts << makeIndent( indent ) << "<widget class=\"" << className << "\"" << attributes << ">" << endl;
	    ++indent;
	}
	if ( WidgetFactory::hasItems(classID) )
	    saveItems( obj, ts, indent );
	saveObjectProperties( obj, ts, indent );
    } else {
	// test for other objects we created. Nothing so far.
	return;
    }

    QDesignerWidgetStack* ws = 0;

    if ( obj->inherits( "QTabWidget" ) ) {
	QTabWidget* tw = (QTabWidget*) obj;
	QObjectList* tmpl = tw->queryList( "QWidgetStack" );
	QWidgetStack *ws = (QWidgetStack*)tmpl->first();
	QTabBar *tb = ( (QDesignerTabWidget*)obj )->tabBar();
	for ( int i = 0; i < tb->count(); ++i ) {
	    QTab *t = tb->tabAt( i );
	    if ( !t )
		continue;
	    QWidget *w = ws->widget( t->identifier() );
	    if ( !w )
		continue;
	    if ( WidgetDatabase::idFromClassName( WidgetFactory::classNameOf(w) ) == -1 )
		continue; // we don't know this widget
	    ts << makeIndent( indent ) << "<widget class=\"QWidget\">" << endl;
	    ++indent;
	    ts << makeIndent( indent ) << "<property name=\"name\">" << endl;
	    indent++;
	    ts << makeIndent( indent ) << "<cstring>" << entitize( w->name() ) << "</cstring>" << endl;
	    indent--;
	    ts << makeIndent( indent ) << "</property>" << endl;

	    ts << makeIndent( indent ) << "<attribute name=\"title\">" << endl;
	    indent++;
	    ts << makeIndent( indent ) << "<string>" << entitize( t->text() ) << "</string>" << endl;
	    indent--;
	    ts << makeIndent( indent ) << "</attribute>" << endl;
	    saveChildrenOf( w, ts, indent );
	    --indent;
	    ts << makeIndent( indent ) << "</widget>" << endl;
	}
	delete tmpl;
    } else if ( (ws = ::qt_cast<QDesignerWidgetStack*>(obj)) != 0 ) {
	for ( int i = 0; i < ws->count(); ++i ) {
	    QWidget *w = ws->page( i );
	    if ( !w )
		continue;
	    if ( WidgetDatabase::idFromClassName(WidgetFactory::classNameOf(w)) == -1 )
		continue; // we don't know this widget
	    ts << makeIndent( indent ) << "<widget class=\"QWidget\">" << endl;
	    ++indent;
	    ts << makeIndent( indent ) << "<property name=\"name\">" << endl;
	    indent++;
	    ts << makeIndent( indent ) << "<cstring>" << entitize( w->name() ) << "</cstring>" << endl;
	    indent--;
	    ts << makeIndent( indent ) << "</property>" << endl;
	    ts << makeIndent( indent ) << "<attribute name=\"id\">" << endl;
	    indent++;
	    ts << makeIndent( indent ) << "<number>" << QString::number(i) << "</number>" << endl;
	    indent--;
	    ts << makeIndent( indent ) << "</attribute>" << endl;
	    saveChildrenOf( w, ts, indent );
	    --indent;
	    ts << makeIndent( indent ) << "</widget>" << endl;
	}
    } else if ( obj->inherits( "QToolBox" ) ) {
	QToolBox* tb = (QToolBox*)obj;
	for ( int i = 0; i < tb->count(); ++i ) {
	    QWidget *w = tb->item( i );
	    if ( !w )
		continue;
	    if ( WidgetDatabase::idFromClassName(WidgetFactory::classNameOf(w)) == -1 )
		continue; // we don't know this widget
	    ts << makeIndent( indent ) << "<widget class=\"QWidget\">" << endl;
	    ++indent;
	    ts << makeIndent( indent ) << "<property name=\"name\">" << endl;
	    indent++;
	    ts << makeIndent( indent ) << "<cstring>" << entitize( w->name() ) << "</cstring>" << endl;
	    indent--;
	    ts << makeIndent( indent ) << "</property>" << endl;
	    ts << makeIndent( indent ) << "<property name=\"backgroundMode\">" << endl;
	    indent++;
	    saveEnumProperty( w, "backgroundMode", QVariant::Invalid, ts, indent );
	    indent--;
	    ts << makeIndent( indent ) << "</property>" << endl;
	    ts << makeIndent( indent ) << "<attribute name=\"label\">" << endl;
	    indent++;
	    ts << makeIndent( indent ) << "<string>" << entitize( tb->itemLabel( tb->indexOf(w) ) ) << "</string>" << endl;
	    indent--;
	    ts << makeIndent( indent ) << "</attribute>" << endl;
	    saveChildrenOf( w, ts, indent );
	    --indent;
	    ts << makeIndent( indent ) << "</widget>" << endl;
	}
    } else if ( obj->inherits( "QWizard" ) ) {
	QWizard* wiz = (QWizard*)obj;
	for ( int i = 0; i < wiz->pageCount(); ++i ) {
	    QWidget *w = wiz->page( i );
	    if ( !w )
		continue;
	    if ( WidgetDatabase::idFromClassName(WidgetFactory::classNameOf(w)) == -1 )
		continue; // we don't know this widget
	    ts << makeIndent( indent ) << "<widget class=\"QWidget\">" << endl;
	    ++indent;
	    ts << makeIndent( indent ) << "<property name=\"name\">" << endl;
	    indent++;
	    ts << makeIndent( indent ) << "<cstring>" << entitize( w->name() ) << "</cstring>" << endl;
	    indent--;
	    ts << makeIndent( indent ) << "</property>" << endl;

	    ts << makeIndent( indent ) << "<attribute name=\"title\">" << endl;
	    indent++;
	    ts << makeIndent( indent ) << "<string>" << entitize( wiz->title( w ) ) << "</string>" << endl;
	    indent--;
	    ts << makeIndent( indent ) << "</attribute>" << endl;
	    saveChildrenOf( w, ts, indent );
	    --indent;
	    ts << makeIndent( indent ) << "</widget>" << endl;
	}
    } else if ( obj->inherits( "QMainWindow" ) ) {
	saveChildrenOf( ( (QMainWindow*)obj )->centralWidget(), ts, indent );
    } else {
	bool saved = FALSE;
#ifdef QT_CONTAINER_CUSTOM_WIDGETS
	if ( isPlugin ) {
	    WidgetInterface *iface = 0;
	    widgetManager()->queryInterface( className, &iface );
	    if ( iface ) {
		QWidgetContainerInterfacePrivate *iface2 = 0;
		iface->queryInterface( IID_QWidgetContainer, (QUnknownInterface**)&iface2 );
		if ( iface2 ) {
		    if ( iface2->supportsPages( className ) )  {
			QWidgetList containers = iface2->pages( className, (QWidget*)obj );
			if ( !containers.isEmpty() ) {
			    saved = TRUE;
			    int i = 0;
			    for ( QWidget *w = containers.first(); w; w = containers.next(), ++i ) {
				if ( WidgetDatabase::
				     idFromClassName( WidgetFactory::classNameOf( w ) ) == -1 )
				    continue; // we don't know this widget
				ts << makeIndent( indent ) << "<widget class=\""
				   << WidgetFactory::classNameOf( w )
				   << "\">" << endl;
				++indent;
				ts << makeIndent( indent ) << "<property name=\"name\">" << endl;
				indent++;
				ts << makeIndent( indent ) << "<cstring>" << entitize( w->name() )
				   << "</cstring>" << endl;
				indent--;
				ts << makeIndent( indent ) << "</property>" << endl;
				ts << makeIndent( indent ) << "<attribute name=\"label\">" << endl;
				indent++;
				ts << makeIndent( indent ) << "<cstring>"
				   << entitize( iface2->pageLabel( className, (QWidget*)obj, i ) )
				   << "</cstring>" << endl;
				indent--;
				ts << makeIndent( indent ) << "</attribute>" << endl;
				saveChildrenOf( w, ts, indent );
				--indent;
				ts << makeIndent( indent ) << "</widget>" << endl;
			    }
			}
		    } else {
			saved = TRUE;
			QWidget *w = iface2->containerOfWidget( className, (QWidget*)obj );
			if ( obj != w ) {
			    ts << makeIndent( indent ) << "<widget class=\""
			       << WidgetFactory::classNameOf( w )
			       << "\">" << endl;
			    ++indent;
			    ts << makeIndent( indent ) << "<property name=\"name\">" << endl;
			    indent++;
			    ts << makeIndent( indent ) << "<cstring>" << entitize( w->name() )
			       << "</cstring>" << endl;
			    indent--;
			    ts << makeIndent( indent ) << "</property>" << endl;
			    saveChildrenOf( w, ts, indent );
			    --indent;
			    ts << makeIndent( indent ) << "</widget>" << endl;
			}
			// Create a custom widget and then store it in the database
			// so we can save the custom widgets.
			MetaDataBase::CustomWidget *cw = new MetaDataBase::CustomWidget;
			cw->className = className;
			cw->includeFile =  WidgetDatabase::includeFile( classID );
			QStrList lst = w->metaObject()->signalNames( TRUE );
			for ( QPtrListIterator<char> it(lst); it.current(); ++it )
			    cw->lstSignals.append(it.current());

			int i;
			int total = w->metaObject()->numProperties( TRUE );
			for ( i = 0; i < total; i++ ) {
			    const QMetaProperty *p = w->metaObject()->property( i, TRUE );
			    if ( p->designable(w) ) {
				MetaDataBase::Property prop;
				prop.property = p->name();
				QString pType = p->type();
				// *sigh* designer types are not normal types
				// Handle most cases, the ones it misses are
				// probably too difficult to deal with anyway...
				if ( pType.startsWith("Q") ) {
				    pType = pType.right( pType.length() - 1 );
				} else {
				    pType[0] = pType[0].upper();