formfile.cpp

Linux下的基于X11的图形开发环境。

		return FALSE;
	    createFormCode();
	}
	setModified( TRUE );
    }
    codeFileStat = FormFile::Ok;
    return TRUE;
}

SourceEditor *FormFile::showEditor( bool askForUih )
{
    if ( !MainWindow::self )
	return 0;
    showFormWindow();
    if ( !setupUihFile( askForUih ) )
	return 0;
    SourceEditor *e = MainWindow::self->openSourceEdior();
    return e;
}

static int ui_counter = 0;
QString FormFile::createUnnamedFileName()
{
    return QString( "unnamed" ) + QString::number( ++ui_counter ) + QString( ".ui" );
}

QString FormFile::codeExtension() const
{
    LanguageInterface *iface = MetaDataBase::languageInterface( pro->language() );
    if ( iface )
	return iface->formCodeExtension();
    return "";
}

QString FormFile::codeComment() const
{
    return QString( "/****************************************************************************\n"
    "** ui.h extension file, included from the uic-generated form implementation.\n"
    "**\n"
    "** If you wish to add, delete or rename functions or slots use\n"
    "** Qt Designer which will update this file, preserving your code. Create an\n"
    "** init() function in place of a constructor, and a destroy() function in\n"
    "** place of a destructor.\n"
    "*****************************************************************************/\n" );
}

bool FormFile::hasFormCode() const
{
    return !cod.isEmpty() && cod != QString( codeComment() );
}

int FormFile::codeFileState() const
{
    return codeFileStat;
}

void FormFile::setCodeFileState( UihState s )
{
    codeFileStat = s;
}

void FormFile::createFormCode()
{
    if ( !formWindow() )
	return;
    LanguageInterface *iface = MetaDataBase::languageInterface( pro->language() );
    if ( !iface )
	return;
    if ( pro->isCpp() )
	cod = codeComment();
    QValueList<MetaDataBase::Function> functionList = MetaDataBase::functionList( formWindow() );
    for ( QValueList<MetaDataBase::Function>::Iterator it = functionList.begin(); it != functionList.end(); ++it ) {
	cod += (!cod.isEmpty() ? "\n\n" : "") +
	       iface->createFunctionStart( formWindow()->name(), make_func_pretty((*it).function),
					   (*it).returnType.isEmpty() ?
					   QString( "void" ) :
					   (*it).returnType, (*it).access ) +
	       "\n" + iface->createEmptyFunction();
    }
    parseCode( cod, FALSE );
}

void FormFile::load()
{
    showFormWindow();
    code();
}

bool FormFile::loadCode()
{
    QFile f( pro->makeAbsolute( codeFile() ) );
    if ( !f.open( IO_ReadOnly ) ) {
	cod = "";
	setCodeFileState( FormFile::None );
	return FALSE;
    }
    QTextStream ts( &f );
    cod = ts.read();
    parseCode( cod, FALSE );
    if ( hasFormCode() && codeFileStat != FormFile::Ok )
	    setCodeFileState( FormFile::Deleted );
    timeStamp.update();
    return TRUE;
}

bool FormFile::isCodeEdited() const
{
    return codeEdited;
}

void FormFile::setCodeEdited( bool b )
{
    codeEdited = b;
}

void FormFile::parseCode( const QString &txt, bool allowModify )
{
    if ( !formWindow() )
	return;
    LanguageInterface *iface = MetaDataBase::languageInterface( pro->language() );
    if ( !iface )
	return;
    QValueList<LanguageInterface::Function> functions;
    QValueList<MetaDataBase::Function> newFunctions, oldFunctions;
    oldFunctions = MetaDataBase::functionList( formWindow() );
    iface->functions( txt, &functions );
    QMap<QString, QString> funcs;
    for ( QValueList<LanguageInterface::Function>::Iterator it = functions.begin();
	  it != functions.end(); ++it ) {
	bool found = FALSE;
	for ( QValueList<MetaDataBase::Function>::Iterator fit = oldFunctions.begin();
	      fit != oldFunctions.end(); ++fit ) {
	    QString f( (*fit).function );
	    if ( MetaDataBase::normalizeFunction( f ) ==
		 MetaDataBase::normalizeFunction( (*it).name ) ) {
		found = TRUE;
		MetaDataBase::Function function;
		function.function = make_func_pretty( (*it).name );
		function.specifier = (*fit).specifier;
		function.type = (*fit).type;
		if ( !pro->isCpp() )
		    function.access = (*it).access;
		else
		    function.access = (*fit).access;
		function.language = (*fit).language;
		function.returnType = (*it).returnType;
		newFunctions << function;
		funcs.insert( (*it).name, (*it).body );
		oldFunctions.remove( fit );
		break;
	    }
	}
	if ( !found ) {
	    MetaDataBase::Function function;
	    function.function = make_func_pretty( (*it).name );
	    function.specifier = "virtual";
	    function.access = "public";
	    function.language = pro->language();
	    function.returnType = (*it).returnType;
	    if ( function.returnType == "void" )
		function.type = "slot";
	    else
		function.type = "function";
	    if ( function.function == "init()" || function.function == "destroy()" ) {
		function.type = "function";
		function.access = "private";
		function.specifier = "non virtual";
	    }
	    newFunctions << function;
	    funcs.insert( (*it).name, (*it).body );
	    if ( allowModify )
		setFormWindowModified( TRUE );
	}
    }

    if ( allowModify && oldFunctions.count() > 0 )
	setFormWindowModified( TRUE );

    MetaDataBase::setFunctionList( formWindow(), newFunctions );
}

void FormFile::syncCode()
{
    if ( !editor() )
	return;
    parseCode( editor()->editorInterface()->text(), TRUE );
    cod = editor()->editorInterface()->text();
}

void FormFile::checkTimeStamp()
{
    if ( timeStamp.isUpToDate() )
	return;
    timeStamp.update();
    if ( codeEdited ) {
	if ( QMessageBox::information( MainWindow::self, tr( "Qt Designer" ),
				       tr( "File '%1' has been changed outside Qt Designer.\n"
					   "Do you want to reload it?" ).arg( timeStamp.fileName() ),
				       tr( "&Yes" ), tr( "&No" ) ) == 0 ) {
	    QFile f( timeStamp.fileName() );
	    if ( f.open( IO_ReadOnly ) ) {
		QTextStream ts( &f );
		editor()->editorInterface()->setText( ts.read() );
		editor()->save();
		if ( MainWindow::self )
		    MainWindow::self->functionsChanged();
	    }
	}
    } else {
	loadCode();
    }
}

void FormFile::addFunctionCode( MetaDataBase::Function function )
{
    if ( pro->isCpp() && !hasFormCode() && !codeEdited )
	return;
    LanguageInterface *iface = MetaDataBase::languageInterface( pro->language() );
    if ( !iface )
	return;

    QValueList<LanguageInterface::Function> funcs;
    iface->functions( cod, &funcs );
    bool hasFunc = FALSE;
    for ( QValueList<LanguageInterface::Function>::Iterator it = funcs.begin();
	  it != funcs.end(); ++it ) {
	if ( MetaDataBase::normalizeFunction( (*it).name ) == MetaDataBase::normalizeFunction( function.function ) ) {
	    hasFunc = TRUE;
	    break;
	}
    }

    if ( !hasFunc ) {
	if ( !codeEdited && !timeStamp.isUpToDate() )
	    loadCode();
	MetaDataBase::MetaInfo mi = MetaDataBase::metaInfo( formWindow() );
	QString cn;
	if ( mi.classNameChanged )
	    cn = mi.className;
	if ( cn.isEmpty() )
	    cn = formWindow()->name();
	QString body = "\n\n" + iface->createFunctionStart( cn,
							    make_func_pretty( function.function ),
							    function.returnType.isEmpty() ?
							    QString( "void" ) :
							    function.returnType, function.access ) +
		       "\n" + iface->createEmptyFunction();
	cod += body;
	if ( codeEdited ) {
	    setModified( TRUE );
	    emit somethingChanged( this );
	}
    }
}

void FormFile::removeFunctionCode( MetaDataBase::Function function )
{
    if ( pro->isCpp() && !hasFormCode() && !codeEdited )
	return;

    LanguageInterface *iface = MetaDataBase::languageInterface( pro->language() );
    if ( !iface )
	return;

    checkTimeStamp();
    QString sourceCode = code();
    if ( sourceCode.isEmpty() )
	return;
    QValueList<LanguageInterface::Function> functions;
    iface->functions( sourceCode, &functions );
    QString fu = MetaDataBase::normalizeFunction( function.function );
    for ( QValueList<LanguageInterface::Function>::Iterator fit = functions.begin(); fit != functions.end(); ++fit ) {
	if ( MetaDataBase::normalizeFunction( (*fit).name ) == fu ) {
	    int line = 0;
	    int start = 0;
	    while ( line < (*fit).start - 1 ) {
		start = sourceCode.find( '\n', start );
		if ( start == -1 )
		    return;
		start++;
		line++;
	    }
	    if ( start == -1 )
	        return;
	    int end = start;
	    while ( line < (*fit).end + 1 ) {
		end = sourceCode.find( '\n', end );
		if ( end == -1 ) {
		    if ( line <= (*fit).end )
			end = sourceCode.length() - 1;
		    else
		        return;
		}
		end++;
		line++;
	    }
	    if ( end < start )
		return;
	    sourceCode.remove( start, end - start );
	    setCode( sourceCode );
	}
    }
}

void FormFile::functionNameChanged( const QString &oldName, const QString &newName )
{
    if ( !cod.isEmpty() ) {
	QString funcStart = QString( formWindow()->name() ) + QString( "::" );
	int i = cod.find( funcStart + oldName );
	if ( i != -1 ) {
	    cod.remove( i + funcStart.length(), oldName.length() );
	    cod.insert( i + funcStart.length(), newName );
	}
    }
}

void FormFile::functionRetTypeChanged( const QString &fuName, const QString &oldType, const QString &newType )
{
    if ( !cod.isEmpty() ) {
	QString oldFunct = oldType + " " + QString( formWindow()->name() ) + "::" + fuName;
	QString newFunct = newType + " " + QString( formWindow()->name() ) + "::" + fuName;

	int i = cod.find( oldFunct );
	if ( i != -1 ) {
	    cod.remove( i, oldFunct.length() );
	    cod.insert( i, newFunct );
	}
    }
}

QString FormFile::formName() const
{
    FormFile* that = (FormFile*) this;
    if ( formWindow() ) {
	that->cachedFormName = formWindow()->name();
	return cachedFormName;
    }
    if ( !cachedFormName.isNull() )
	return cachedFormName;
    QFile f( pro->makeAbsolute( filename ) );
    if ( f.open( IO_ReadOnly ) ) {
	QTextStream ts( &f );
	QString line;
	QString className;
	while ( !ts.eof() ) {
	    line = ts.readLine();
	    if ( !className.isEmpty() ) {
		int end = line.find( "</class>" );
		if ( end == -1 ) {
		    className += line;
		} else {
		    className += line.left( end );
		    break;
		}
		continue;
	    }
	    int start;
	    if ( ( start = line.find( "<class>" ) ) != -1 ) {
		int end = line.find( "</class>" );
		if ( end == -1 ) {
		    className = line.mid( start + 7 );
		} else {
		    className = line.mid( start + 7, end - ( start + 7 ) );
		    break;
		}
	    }
	}
	that->cachedFormName =  className;
    }
    if ( cachedFormName.isEmpty() )
	that->cachedFormName = filename;
    return cachedFormName;
}

void FormFile::formWindowChangedSomehow()
{
    emit somethingChanged( this );
}

bool FormFile::checkFileName( bool allowBreak )
{
    FormFile *ff = pro->findFormFile( filename, this );
    if ( ff )
	QMessageBox::warning( MainWindow::self, tr( "Invalid Filename" ),
			      tr( "The project already contains a form with a\n"
				  "filename of '%1'. Please choose a new filename." ).arg( filename ) );
    while ( ff ) {
	QString fn;
	while ( fn.isEmpty() ) {
	    fn = QFileDialog::getSaveFileName( pro->makeAbsolute( fileName() ),
					       tr( "Qt User-Interface Files (*.ui)" ) + ";;" +
					       tr( "All Files (*)" ), MainWindow::self, 0,
					       tr( "Save Form '%1' As ...").
					       arg( formWindow()->name() ),
					       MainWindow::self ? &MainWindow::self->lastSaveFilter : 0 );
	    if ( allowBreak && fn.isEmpty() )
		return FALSE;
	}
	filename = pro->makeRelative( fn );
	ff = pro->findFormFile( filename, this );
     }
    return TRUE;
}

void FormFile::addConnection( const QString &sender, const QString &signal,
			      const QString &receiver, const QString &slot )
{
    LanguageInterface *iface = MetaDataBase::languageInterface( pro->language() );
    if ( iface )
	iface->addConnection( sender, signal, receiver, slot, &cod );
    if ( ed )
	ed->editorInterface()->setText( cod );
}

void FormFile::removeConnection( const QString &sender, const QString &signal,
				 const QString &receiver, const QString &slot )
{
    LanguageInterface *iface = MetaDataBase::languageInterface( pro->language() );
    if ( iface )
	iface->removeConnection( sender, signal, receiver, slot, &cod );
    if ( ed )
	ed->editorInterface()->setText( cod );
}

void FormFile::notifyFormWindowChange()
{
    if ( fw )
	pro->formOpened( fw );
}