form.cpp

这个是Linux的qt源代码

	    }
	}
    }

    // additional includes (local or global) and forward declaractions
    nl = e.parentNode().toElement().elementsByTagName( "include" );
    for ( i = 0; i < (int) nl.length(); i++ ) {
	QDomElement n2 = nl.item(i).toElement();
	QString s = n2.firstChild().toText().data();
	if ( n2.attribute( "location" ) != "local" ) {
	    if ( s.right( 5 ) == ".ui.h" && !QFile::exists( s ) )
		continue;
	    if ( n2.attribute( "impldecl", "in implementation" ) != "in implementation" )
		continue;
	    globalIncludes += s;
	}
    }

    registerDatabases( e );
    dbConnections = unique( dbConnections );
    if ( dbConnections.count() )
	globalIncludes += "qsqldatabase.h";
    if ( dbCursors.count() )
	globalIncludes += "qsqlcursor.h";
    bool dbForm = FALSE;
    if ( dbForms[ "(default)" ].count() )
	dbForm = TRUE;
    bool subDbForms = FALSE;
    for ( it = dbConnections.begin(); it != dbConnections.end(); ++it ) {
	if ( !(*it).isEmpty()  && (*it) != "(default)" ) {
	    if ( dbForms[ (*it) ].count() ) {
		subDbForms = TRUE;
		break;
	    }
	}
    }
    if ( dbForm || subDbForms ) {
	globalIncludes += "qsqlform.h";
	globalIncludes += "qsqlrecord.h";
    }

    // do the local includes afterwards, since global includes have priority on clashes
    for ( i = 0; i < (int) nl.length(); i++ ) {
	QDomElement n2 = nl.item(i).toElement();
	QString s = n2.firstChild().toText().data();
	if ( n2.attribute( "location" ) == "local" &&!globalIncludes.contains( s ) ) {
	    if ( s.right( 5 ) == ".ui.h" && !QFile::exists( s ) )
		continue;
	    if ( n2.attribute( "impldecl", "in implementation" ) != "in implementation" )
		continue;
	    localIncludes += s;
	}
    }

    // additional custom widget headers
    nl = e.parentNode().toElement().elementsByTagName( "header" );
    for ( i = 0; i < (int) nl.length(); i++ ) {
	QDomElement n2 = nl.item(i).toElement();
	QString s = n2.firstChild().toText().data();
	if ( n2.attribute( "location" ) != "local" )
	    globalIncludes += s;
	else
	    localIncludes += s;
    }

    // includes for child widgets
    for ( it = tags.begin(); it != tags.end(); ++it ) {
	nl = e.parentNode().toElement().elementsByTagName( *it );
	for ( i = 1; i < (int) nl.length(); i++ ) { // start at 1, 0 is the toplevel widget
	    QString name = getClassName( nl.item(i).toElement() );
	    if ( name == "Spacer" ) {
		globalIncludes += "qlayout.h";
		globalIncludes += "qapplication.h";
		continue;
	    }
	    if ( name.mid( 1 ) == "ListView" )
		globalIncludes += "qheader.h";
	    if ( name != objClass ) {
		int wid = WidgetDatabase::idFromClassName( name );
		QMap<QString, CustomInclude>::Iterator it = customWidgetIncludes.find( name );
		if ( it == customWidgetIncludes.end() )
		    globalIncludes += WidgetDatabase::includeFile( wid );
	    }
	}
    }

    out << "#include <qvariant.h>" << endl; // first for gcc 2.7.2

    globalIncludes = unique( globalIncludes );
    for ( it = globalIncludes.begin(); it != globalIncludes.end(); ++it ) {
	if ( !(*it).isEmpty() )
	    out << "#include <" << *it << ">" << endl;
    }

    out << "#include <qlayout.h>" << endl;
    out << "#include <qtooltip.h>" << endl;
    out << "#include <qwhatsthis.h>" << endl;
    if ( objClass == "QMainWindow" ) {
	out << "#include <qaction.h>" << endl;
	out << "#include <qmenubar.h>" << endl;
	out << "#include <qpopupmenu.h>" << endl;
	out << "#include <qtoolbar.h>" << endl;
    }

    // find out what images are required
    QStringList requiredImages;
    static const char *imgTags[] = { "pixmap", "iconset", 0 };
    for ( i = 0; imgTags[i] != 0; i++ ) {
	nl = e.parentNode().toElement().elementsByTagName( imgTags[i] );
	for ( int j = 0; j < (int) nl.length(); j++ ) {
	    QDomNode nn = nl.item(j);
	    while ( nn.parentNode() != e.parentNode() )
		nn = nn.parentNode();
	    if ( nn.nodeName() != "customwidgets" )
		requiredImages += nl.item(j).firstChild().toText().data();
	}
    }

    if ( !requiredImages.isEmpty() || externPixmaps ) {
	out << "#include <qimage.h>" << endl;
	out << "#include <qpixmap.h>" << endl << endl;
    }

    /*
      Put local includes after all global includes
    */
    localIncludes = unique( localIncludes );
    for ( it = localIncludes.begin(); it != localIncludes.end(); ++it ) {
	if ( !(*it).isEmpty() && *it != QFileInfo( fileName + ".h" ).fileName() )
	    out << "#include \"" << *it << "\"" << endl;
    }

    QString uiDotH = fileName + ".h";
    if ( QFile::exists( uiDotH ) ) {
	if ( !outputFileName.isEmpty() )
	    uiDotH = combinePath( uiDotH, outputFileName );
	out << "#include \"" << uiDotH << "\"" << endl;
	writeFunctImpl = FALSE;
    }

    // register the object and unify its name
    objName = registerObject( objName );

    QStringList images;
    QStringList xpmImages;
    if ( pixmapLoaderFunction.isEmpty() && !externPixmaps ) {
	// create images
	for ( n = e; !n.isNull(); n = n.nextSibling().toElement() ) {
	    if ( n.tagName()  == "images" ) {
		nl = n.elementsByTagName( "image" );
		for ( i = 0; i < (int) nl.length(); i++ ) {
		    QString img = registerObject( nl.item(i).toElement().attribute("name") );
		    if ( !requiredImages.contains( img ) )
			continue;
		    QDomElement tmp = nl.item(i).firstChild().toElement();
		    if ( tmp.tagName() != "data" )
			continue;
		    QString format = tmp.attribute("format", "PNG" );
		    QString data = tmp.firstChild().toText().data();
		    if ( format == "XPM.GZ" ) {
			xpmImages += img;
			ulong length = tmp.attribute("length").toULong();
			QByteArray baunzip = unzipXPM( data, length );
			length = baunzip.size();
			// shouldn't we test the initial 'length' against the
			// resulting 'length' to catch corrupt UIC files?
			int a = 0;
			int column = 0;
			bool inQuote = FALSE;
			out << "static const char* const " << img << "_data[] = { " << endl;
			while ( baunzip[a] != '\"' )
			    a++;
			for ( ; a < (int) length; a++ ) {
			    out << baunzip[a];
			    if ( baunzip[a] == '\n' ) {
				column = 0;
			    } else if ( baunzip[a] == '"' ) {
				inQuote = !inQuote;
			    }

			    if ( column++ >= 511 && inQuote ) {
				out << "\"\n\""; // be nice with MSVC & Co.
				column = 1;
			    }
			}
			out << endl;
		    } else {
			images += img;
			out << "static const unsigned char const " << img << "_data[] = { " << endl;
			out << "    ";
			int a ;
			for ( a = 0; a < (int) (data.length()/2)-1; a++ ) {
			    out << "0x" << QString(data[2*a]) << QString(data[2*a+1]) << ",";
			    if ( a % 12 == 11 )
				out << endl << "    ";
			    else
				out << " ";
			}
			out << "0x" << QString(data[2*a]) << QString(data[2*a+1]) << endl;
			out << "};" << endl << endl;
		    }
		}
	    }
	}
	out << endl;
    } else if ( externPixmaps ) {
	pixmapLoaderFunction = "QPixmap::fromMimeSource";
    }

    // constructor
    if ( objClass == "QDialog" || objClass == "QWizard" ) {
	out << "/*" << endl;
	out << " *  Constructs a " << nameOfClass << " as a child of 'parent', with the" << endl;
	out << " *  name 'name' and widget flags set to 'f'." << endl;
	out << " *" << endl;
	out << " *  The " << objClass.mid(1).lower() << " will by default be modeless, unless you set 'modal' to" << endl;
	out << " *  TRUE to construct a modal " << objClass.mid(1).lower() << "." << endl;
	out << " */" << endl;
	out << nameOfClass << "::" << bareNameOfClass << "( QWidget* parent, const char* name, bool modal, WFlags fl )" << endl;
	out << "    : " << objClass << "( parent, name, modal, fl )";
    } else if ( objClass == "QWidget" )  {
	out << "/*" << endl;
	out << " *  Constructs a " << nameOfClass << " as a child of 'parent', with the" << endl;
	out << " *  name 'name' and widget flags set to 'f'." << endl;
	out << " */" << endl;
	out << nameOfClass << "::" << bareNameOfClass << "( QWidget* parent, const char* name, WFlags fl )" << endl;
	out << "    : " << objClass << "( parent, name, fl )";
    } else if ( objClass == "QMainWindow" ) {
	out << "/*" << endl;
	out << " *  Constructs a " << nameOfClass << " as a child of 'parent', with the" << endl;
	out << " *  name 'name' and widget flags set to 'f'." << endl;
	out << " *" << endl;
	out << " */" << endl;
	out << nameOfClass << "::" << bareNameOfClass << "( QWidget* parent, const char* name, WFlags fl )" << endl;
	out << "    : " << objClass << "( parent, name, fl )";
	isMainWindow = TRUE;
    } else {
	out << "/*" << endl;
	out << " *  Constructs a " << nameOfClass << " which is a child of 'parent', with the" << endl;
	out << " *  name 'name'.' " << endl;
	out << " */" << endl;
	out << nameOfClass << "::" << bareNameOfClass << "( QWidget* parent,  const char* name )" << endl;
	out << "    : " << objClass << "( parent, name )";
    }

    // create pixmaps for all images
    if ( !xpmImages.isEmpty() ) {
	for ( it = xpmImages.begin(); it != xpmImages.end(); ++it ) {
	    out << "," << endl;
	    out << indent << "  " << *it << "( (const char **) " << (*it) << "_data )";
	}
    }
    out << endl;

    out << "{" << endl;
    if ( isMainWindow )
	out << indent << "(void)statusBar();" << endl;

    if ( !images.isEmpty() ) {
	out << indent << "QImage img;" << endl;
	for ( it = images.begin(); it != images.end(); ++it ) {
	    out << indent << "img.loadFromData( " << (*it) << "_data, sizeof( " << (*it) << "_data ), \"PNG\" );" << endl;
	    out << indent << (*it) << " = img;" << endl;
	}
    }

    // set the properties
    QSize geometry( 0, 0 );

    for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
	if ( n.tagName() == "property" ) {
	    bool stdset = stdsetdef;
	    if ( n.hasAttribute( "stdset" ) )
		stdset = toBool( n.attribute( "stdset" ) );
	    QString prop = n.attribute("name");
	    QDomElement n2 = n.firstChild().toElement();
	    QString value = setObjectProperty( objClass, QString::null, prop, n2, stdset );
	    if ( value.isEmpty() )
		continue;

	    if ( prop == "geometry" && n2.tagName() == "rect" ) {
		QDomElement n3 = n2.firstChild().toElement();
		while ( !n3.isNull() ) {
		    if ( n3.tagName() == "width" )
			geometry.setWidth( n3.firstChild().toText().data().toInt() );
		    else if ( n3.tagName() == "height" )
			geometry.setHeight( n3.firstChild().toText().data().toInt() );
		    n3 = n3.nextSibling().toElement();
		}
	    } else {
		QString call;
		if ( stdset ) {
		    call = mkStdSet( prop ) + "( ";
		} else {
		    call = "setProperty( \"" + prop + "\", ";
		}
		call += value + " );";

		if ( n2.tagName() == "string" ) {
		    trout << indent << call << endl;
		} else if ( prop == "name" ) {
		    out << indent << "if ( !name )" << endl;
		    out << "\t" << call << endl;
		} else {
		    out << indent << call << endl;
		}
	    }
	}
    }

    // create all children, some forms have special requirements

    if ( objClass == "QWizard" ) {
	for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
	    if ( tags.contains( n.tagName()  ) ) {
		QString page = createObjectImpl( n, objClass, "this" );
		QString comment;
		QString label = DomTool::readAttribute( n, "title", "", comment ).toString();
		out << indent << "addPage( " << page << ", QString(\"\") );" << endl;
		trout << indent << "setTitle( " << page << ", " << trcall( label, comment ) << " );" << endl;
		QVariant def( FALSE, 0 );
		if ( DomTool::hasAttribute( n, "backEnabled" ) )
		    out << indent << "setBackEnabled( " << page << ", " << mkBool( DomTool::readAttribute( n, "backEnabled", def).toBool() ) << endl;
		if ( DomTool::hasAttribute( n, "nextEnabled" ) )
		    out << indent << "setNextEnabled( " << page << ", " << mkBool( DomTool::readAttribute( n, "nextEnabled", def).toBool() ) << endl;
		if ( DomTool::hasAttribute( n, "finishEnabled" ) )
		    out << indent << "setFinishEnabled( " << page << ", " << mkBool( DomTool::readAttribute( n, "finishEnabled", def).toBool() ) << " );" << endl;
		if ( DomTool::hasAttribute( n, "helpEnabled" ) )
		    out << indent << "setHelpEnabled( " << page << ", " << mkBool( DomTool::readAttribute( n, "helpEnabled", def).toBool() ) << endl;
		if ( DomTool::hasAttribute( n, "finish" ) )
		    out << indent << "setFinish( " << page << ", " << mkBool( DomTool::readAttribute( n, "finish", def).toBool() ) << endl;
	    }
	}
    } else { // standard widgets
	for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
	    if ( tags.contains( n.tagName()  ) )
		createObjectImpl( n, objName, "this" );
	}
    }

    // database support
    dbConnections = unique( dbConnections );
    if ( dbConnections.count() )
	out << endl;
    for ( it = dbConnections.begin(); it != dbConnections.end(); ++it ) {
	if ( !(*it).isEmpty() && (*it) != "(default)") {
	    out << indent << (*it) << "Connection = QSqlDatabase::database( \"" <<(*it) << "\" );" << endl;
	}
    }

    nl = e.parentNode().toElement().elementsByTagName( "widget" );
    for ( i = 1; i < (int) nl.length(); i++ ) { // start at 1, 0 is the toplevel widget
	n = nl.item(i).toElement();
	QString s = getClassName( n );
	if ( (dbForm || subDbForms) && (s == "QDataBrowser" || s == "QDataView") ) {
	    QString objName = getObjectName( n );
	    QString tab = getDatabaseInfo( n, "table" );
	    QString con = getDatabaseInfo( n, "connection" );
	    out << indent << "QSqlForm* " << objName << "Form =  new QSqlForm( this, \"" << objName << "Form\" );" << endl;
	    QDomElement n2;
	    for ( n2 = n.firstChild().toElement(); !n2.isNull(); n2 = n2.nextSibling().toElement() )