form.cpp

来自「qt-x11-free-3.0.3.tar.gz minigui图形界面工具」· C++ 代码 · 共 1,243 行 · 第 1/3 页

	out << " */" << endl;
	out << nameOfClass << "::" << nameOfClass << "( QWidget* parent,  const char* name, WFlags fl )" << endl;
	out << "    : " << objClass << "( parent, name, fl )" << endl;
	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 << "::" << nameOfClass << "( QWidget* parent,  const char* name )" << endl;
	out << "    : " << objClass << "( parent, name )" << endl;
    }

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


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


    // set the properties
    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 == "name" ) {
		out << "    if ( !name )" << endl;
		out << "\t";
	    } else {
		out << indent;
	    }

	    if ( prop == "geometry" && n2.tagName() == "rect") {
		QDomElement n3 = n2.firstChild().toElement();
		int w = 0, h = 0;
		while ( !n3.isNull() ) {
		    if ( n3.tagName() == "width" )
			w = n3.firstChild().toText().data().toInt();
		    else if ( n3.tagName() == "height" )
			h = n3.firstChild().toText().data().toInt();
		    n3 = n3.nextSibling().toElement();
		}
		out << "resize( " << w << ", " << h << " ); " << endl;
	    } else {
		if ( stdset )
		    out << mkStdSet( prop ) << "( " << value << " );" << endl;
		else
		    out << "setProperty( \"" << prop << "\", " << value << " );" << 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 label = DomTool::readAttribute( n, "title", "" ).toString();
		out << indent << "addPage( " << page << ", "<< trcall( label ) << " );" << 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 << indent << "// database support" << 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 ( 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() )
		createFormImpl( n2, objName, con, tab );
	    out << indent << objName << "->setForm( " << objName << "Form );" << endl;
	}
    }

    // actions, toolbars, menubar
    bool needEndl = FALSE;
    for ( n = e; !n.isNull(); n = n.nextSibling().toElement() ) {
	if ( n.tagName()  == "actions" ) {
	    if ( !needEndl )
		out << endl << indent << "// actions" << endl;
	    createActionImpl( n.firstChild().toElement(), "this" );
	    needEndl = TRUE;
	}
    }
    if ( needEndl )
	out << endl;
    needEndl = FALSE;
    for ( n = e; !n.isNull(); n = n.nextSibling().toElement() ) {
	if ( n.tagName() == "toolbars" ) {
	    if ( !needEndl )
		out << endl << indent << "// toolbars" << endl;
	    createToolbarImpl( n, objClass, objName );
	    needEndl = TRUE;
	}
    }
    if ( needEndl )
	out << endl;
    needEndl = FALSE;
    for ( n = e; !n.isNull(); n = n.nextSibling().toElement() ) {
	if ( n.tagName() == "menubar" ) {
	    if ( !needEndl )
		out << endl << indent << "// menubar" << endl;
	    createMenuBarImpl( n, objClass, objName );
	    needEndl = TRUE;
	}
    }
    if ( needEndl )
	out << endl;

    for ( n = e; !n.isNull(); n = n.nextSibling().toElement() ) {
	if ( n.tagName()  == "connections" ) {
	    // setup signals and slots connections
	    out << endl << indent << "// signals and slots connections" << endl;
	    nl = n.elementsByTagName( "connection" );
	    for ( i = 0; i < (int) nl.length(); i++ ) {
		QString sender, receiver, signal, slot;
		for ( QDomElement n2 = nl.item(i).firstChild().toElement(); !n2.isNull(); n2 = n2.nextSibling().toElement() ) {
		    if ( n2.tagName() == "sender" )
			sender = n2.firstChild().toText().data();
		    else if ( n2.tagName() == "receiver" )
			receiver = n2.firstChild().toText().data();
		    else if ( n2.tagName() == "signal" )
			signal = n2.firstChild().toText().data();
		    else if ( n2.tagName() == "slot" )
			slot = n2.firstChild().toText().data();
		}
		if ( sender.isEmpty() || receiver.isEmpty() || signal.isEmpty() || slot.isEmpty() )
		    continue;

		sender = registeredName( sender );
		receiver = registeredName( receiver );

		 // translate formwindow name to "this"
		if ( sender == objName )
		    sender = "this";
		if ( receiver == objName )
		    receiver = "this";

		out << indent << "connect( " << sender << ", SIGNAL( " << signal << " ), "
		    << receiver << ", SLOT( " << slot << " ) );" << endl;
	    }
	} else if ( n.tagName()  == "tabstops" ) {
	    // setup tab order
	    out << endl << indent << "// tab order" << endl;
	    QString lastName;
	    QDomElement n2 = n.firstChild().toElement();
	    while ( !n2.isNull() ) {
		if ( n2.tagName() == "tabstop" ) {
		    QString name = n2.firstChild().toText().data();
		    name = registeredName( name );
		    if ( !lastName.isEmpty() )
			out << indent << "setTabOrder( " << lastName << ", " << name << " );" << endl;
		    lastName = name;
		}
		n2 = n2.nextSibling().toElement();
	    }
	}
    }


    // buddies
    bool firstBuddy = TRUE;
    for ( QValueList<Buddy>::Iterator buddy = buddies.begin(); buddy != buddies.end(); ++buddy ) {
	if ( isObjectRegistered( (*buddy).buddy ) ) {
	    if ( firstBuddy ) {
		out << endl << indent << "// buddies" << endl;
	    }
	    out << indent << (*buddy).key << "->setBuddy( " << registeredName( (*buddy).buddy ) << " );" << endl;
	    firstBuddy = FALSE;
	}

    }

    if ( extraSlots.find( "init()" ) != extraSlots.end() )
	out << indent << "init();" << endl;

    // end of constructor
    out << "}" << endl;
    out << endl;

    // destructor
    out << "/*  " << endl;
    out << " *  Destroys the object and frees any allocated resources" << endl;
    out << " */" << endl;
    out << nameOfClass << "::~" << nameOfClass << "()" << endl;
    out << "{" << endl;
    if ( extraSlots.find( "destroy()" ) != extraSlots.end() )
	out << indent << "destroy();" << endl;
    out << indent << "// no need to delete child widgets, Qt does it all for us" << endl;
    out << "}" << endl;
    out << endl;

    // handle application events if required
    bool needFontEventHandler = FALSE;
    bool needSqlTableEventHandler = FALSE;
    bool needSqlDataBrowserEventHandler = FALSE;
    nl = e.elementsByTagName( "widget" );
    for ( i = 0; i < (int) nl.length(); i++ ) {
	if ( !DomTool::propertiesOfType( nl.item(i).toElement() , "font" ).isEmpty() )
	    needFontEventHandler = TRUE;
	QString s = getClassName( nl.item(i).toElement() );
	if ( s == "QDataTable" || s == "QDataBrowser" ) {
	    if ( !isFrameworkCodeGenerated( nl.item(i).toElement() ) )
		 continue;
	    if ( s == "QDataTable" )
		needSqlTableEventHandler = TRUE;
	    if ( s == "QDataBrowser" )
		needSqlDataBrowserEventHandler = TRUE;
	}
	if ( needFontEventHandler && needSqlTableEventHandler && needSqlDataBrowserEventHandler )
	    break;
    }
    if ( needFontEventHandler && FALSE ) {
	//	indent = "\t"; // increase indentation for if-clause below
	out << "/*  " << endl;
	out << " *  Main event handler. Reimplemented to handle" << endl;
	out << " *  application font changes";
	out << " */" << endl;
	out << "bool " << nameOfClass  << "::event( QEvent* ev )" << endl;
	out << "{" << endl;
	out << "    bool ret = " << objClass << "::event( ev ); " << endl;
	if ( needFontEventHandler ) {
	    indent += "\t";
	    out << "    if ( ev->type() == QEvent::ApplicationFontChange ) {" << endl;
	    for ( i = 0; i < (int) nl.length(); i++ ) {
		n = nl.item(i).toElement();
		QStringList list = DomTool::propertiesOfType( n, "font" );
		for ( it = list.begin(); it != list.end(); ++it )
		    createExclusiveProperty( n, *it );
	    }
	    out << "    }" << endl;
	    indent = "    ";
	}
	out << "}" << endl;
	out << endl;
    }

    if ( needSqlTableEventHandler || needSqlDataBrowserEventHandler ) {
	out << "/*  " << endl;
	out << " *  Widget polish.  Reimplemented to handle" << endl;
	if ( needSqlTableEventHandler )
	    out << " *  default data table initialization" << endl;
	if ( needSqlDataBrowserEventHandler )
	    out << " *  default data browser initialization" << endl;
	out << " */" << endl;
	out << "void " << nameOfClass  << "::polish()" << endl;
	out << "{" << endl;
	if ( needSqlTableEventHandler ) {
	    for ( i = 0; i < (int) nl.length(); i++ ) {
		QString s = getClassName( nl.item(i).toElement() );
		if ( s == "QDataTable" ) {
		    n = nl.item(i).toElement();
		    QString c = getObjectName( n );
		    QString conn = getDatabaseInfo( n, "connection" );
		    QString tab = getDatabaseInfo( n, "table" );
		    if ( !( conn.isEmpty() || tab.isEmpty() ) ) {
			out << indent << "if ( " << c << " ) {" << endl;
			out << indent << indent << "QSqlCursor* cursor = " << c << "->sqlCursor();" << endl;
			out << indent << indent << "if ( !cursor ) {" << endl;
			if ( conn == "(default)" )
			    out << indent << indent << indent << "cursor = new QSqlCursor( \"" << tab << "\" );" << endl;
			else
			    out << indent << indent << indent << "cursor = new QSqlCursor( \"" << tab << "\", TRUE, " << conn << "Connection );" << endl;
			out << indent << indent << indent << c << "->setSqlCursor( cursor, FALSE, TRUE );" << endl;
			out << indent << indent << "}" << endl;
			out << indent << indent << "if ( !cursor->isActive() )" << endl;
			out << indent << indent << indent << c << "->refresh( QDataTable::RefreshAll );" << endl;
			out << indent << "}" << endl;
		    }
		}
	    }
	}
	if ( needSqlDataBrowserEventHandler ) {
	    nl = e.elementsByTagName( "widget" );
	    for ( i = 0; i < (int) nl.length(); i++ ) {
		QString s = getClassName( nl.item(i).toElement() );
		if ( s == "QDataBrowser" ) {
		    QString obj = getObjectName( nl.item(i).toElement() );
		    QString tab = getDatabaseInfo( nl.item(i).toElement(),
						   "table" );
		    QString conn = getDatabaseInfo( nl.item(i).toElement(),
						    "connection" );
		    if ( !(tab).isEmpty() ) {
			out << indent << "if ( " << obj << " ) {" << endl;
			out << indent << indent << "if ( !" << obj << "->sqlCursor() ) {" << endl;
			if ( conn == "(default)" )
			    out << indent << indent << indent << "QSqlCursor* cursor = new QSqlCursor( \"" << tab << "\" );" << endl;
			else
			    out << indent << indent << indent << "QSqlCursor* cursor = new QSqlCursor( \"" << tab << "\", TRUE, " << conn << "Connection );" << endl;
			out << indent << indent << indent << obj << "->setSqlCursor( cursor, TRUE );" << endl;
			out << indent << indent << indent << obj << "->refresh();" << endl;
			out << indent << indent << indent << obj << "->first();" << endl;
			out << indent << indent << "}" << endl;
			out << indent << "}" << endl;
		    }
		}
	    }
	}
	out << indent << objClass << "::polish();" << endl;
	out << "}" << endl;
	out << endl;
    }


    // create  stubs for additional slots if necessary
    if ( !extraSlots.isEmpty() && writeSlotImpl ) {
	QStringList::Iterator it2;
	for ( it = extraSlots.begin(), it2 = extraSlotTypes.begin(); it != extraSlots.end(); ++it, ++it2 ) {
	    QString type = *it2;
	    if ( type.isEmpty() )
		type = "void";
	    out << type << " " << nameOfClass << "::" << (*it) << endl;
	    bool createWarning = TRUE;
	    QString fname = Parser::cleanArgs( *it );
	    QMap<QString, QString>::Iterator fit = functionImpls.find( fname );
	    if ( fit != functionImpls.end() ) {
		int begin = (*fit).find( "{" );
		QString body = (*fit).mid( begin + 1, (*fit).find( "}" ) - begin - 1 );
		createWarning = body.simplifyWhiteSpace().isEmpty();
		if ( !createWarning )
		    out << *fit << endl;
	    }
	    if ( createWarning ) {
		out << "{" << endl;
		if ( *it != "init()" && *it != "destroy()" )
		    out << "    qWarning( \"" << nameOfClass << "::" << (*it) << ": Not implemented yet!\" );" << endl;
		out << "}" << endl;
	    }
	    out << endl;
	}
    }
}


/*! Creates form support implementation code for the widgets given
  in \a e.

  Traverses recursively over all children.
 */

void Uic::createFormImpl( const QDomElement& e, const QString& form, const QString& connection, const QString& table )
{
    if ( e.tagName() == "widget" &&
	 e.attribute( "class" ) != "QDataTable" ) {
	QString field = getDatabaseInfo( e, "field" );
	if ( !field.isEmpty() ) {
	    if ( isWidgetInTable( e, connection, table ) )
		out << indent << form << "Form->insert( " << getObjectName( e ) << ", " << fixString( field ) << " );" << endl;
	}
    }
    QDomElement n;
    for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
	createFormImpl( n, form, connection, table );
    }
}