mainwindowactions.cpp

这个是Linux的qt源代码

    actionHelpRegister->addTo( menu );
#endif

    menu->insertSeparator();
    actionHelpWhatsThis->addTo( menu );
}

void MainWindow::fileNew()
{
    statusBar()->message( tr( "Create a new project, form or source file...") );
    NewForm dlg( this, projectNames(), currentProject->projectName(), templatePath() );
    dlg.exec();
    statusBar()->clear();
}

void MainWindow::fileNewDialog()
{
    static int forms = 0;
    QString n = "Dialog" + QString::number( ++forms );
    while ( currentProject->findFormFile( n + ".ui" ) )
	n = "Dialog" + QString::number( ++forms );
    FormWindow *fw = 0;
    FormFile *ff = new FormFile( n + ".ui", FALSE, currentProject );
    fw = new FormWindow( ff, MainWindow::self, MainWindow::self->qWorkspace(), n );
    ff->setModified( TRUE );
    currentProject->setModified( TRUE );
    workspace()->update();
    fw->setProject( currentProject );
    MetaDataBase::addEntry( fw );
    QWidget *w = WidgetFactory::create( WidgetDatabase::idFromClassName( "QDialog" ), fw, n.latin1() );
    fw->setMainContainer( w );
    fw->setCaption( n );
    fw->resize( 600, 480 );
    insertFormWindow( fw );
    fw->killAccels( fw );
    fw->project()->setModified( TRUE );
    fw->setFocus();
    fw->setSavePixmapInProject( TRUE );
    fw->setSavePixmapInline( FALSE );
}

void MainWindow::fileNewFile()
{
    QString name = QInputDialog::getText( tr( "Name of File" ), tr( "Enter the name of the new source file:" ) );
    if ( name.isEmpty() )
	return;
    if ( name.right( 3 ) != ".qs" )
	name += ".qs";
    SourceFile *f = new SourceFile( name, FALSE, currentProject );
    MainWindow::self->editSource( f );
    f->setModified( TRUE );
    currentProject->setModified( TRUE );
    workspace()->update();
}

void MainWindow::fileQuit()
{
    close();
    if ( !singleProjectMode() )
	qApp->closeAllWindows();
}

void MainWindow::fileClose()
{
    if ( !currentProject->isDummy() ) {
	fileCloseProject();
    } else {
	QWidget *w = qworkspace->activeWindow();
	if ( w ) {
	    if ( w->inherits( "FormWindow" ) )
		( (FormWindow*)w )->formFile()->close();
	    else if ( w->inherits( "SourceEditor" ) )
		( (SourceEditor*)w )->close();
	}
    }
}


void MainWindow::fileCloseProject()
{
    if ( currentProject->isDummy() )
	return;
    Project *pro = currentProject;
    QAction* a = 0;
    QAction* lastValid = 0;
    for ( QMap<QAction*, Project* >::Iterator it = projects.begin(); it != projects.end(); ++it ) {
	if ( it.data() == pro ) {
	    a = it.key();
	    if ( lastValid )
		break;
	}
	lastValid = it.key();
    }
    if ( a ) {
	if ( pro->isModified() ) {
	    switch ( QMessageBox::warning( this, tr( "Save Project Settings" ),
					   tr( "Save changes to '%1'?" ).arg( pro->fileName() ),
					   tr( "&Yes" ), tr( "&No" ), tr( "&Cancel" ), 0, 2 ) ) {
	    case 0: // save
		pro->save();
		break;
	    case 1: // don't save
		break;
	    case 2: // cancel
		return;
	    default:
		break;
	    }
	}

	QWidgetList windows = qWorkspace()->windowList();
	qWorkspace()->blockSignals( TRUE );
	QWidgetListIt wit( windows );
	while ( wit.current() ) {
	    QWidget *w = wit.current();
	    ++wit;
	    if ( w->inherits( "FormWindow" ) ) {
		if ( ( (FormWindow*)w )->project() == pro ) {
		    if ( ( (FormWindow*)w )->formFile()->editor() )
			windows.removeRef( ( (FormWindow*)w )->formFile()->editor() );
		    if ( !( (FormWindow*)w )->formFile()->close() )
			return;
		}
	    } else if ( w->inherits( "SourceEditor" ) ) {
		if ( !( (SourceEditor*)w )->close() )
		    return;
	    }
	}
	hierarchyView->clear();
	windows = qWorkspace()->windowList();
	qWorkspace()->blockSignals( FALSE );
	actionGroupProjects->removeChild( a );
	projects.remove( a );
	delete a;
	currentProject = 0;
	if ( lastValid ) {
	    projectSelected( lastValid );
	    statusBar()->message( "Selected project '" + tr( currentProject->projectName() + "'") );
	}
	if ( !windows.isEmpty() ) {
	    for ( QWidget *w = windows.first(); w; w = windows.next() ) {
		if ( !w->inherits( "FormWindow" ) )
		    continue;
		w->setFocus();
		activeWindowChanged( w );
		break;
	    }
	} else {
	    emit hasActiveWindow( FALSE );
	    emit hasActiveForm( FALSE );
	    updateUndoRedo( FALSE, FALSE, QString::null, QString::null );
	}
    }
}

void MainWindow::fileOpen() // as called by the menu
{
    fileOpen( "", "", "", FALSE );
}

void MainWindow::projectInsertFile()
{
    fileOpen( "", "" );
}

void MainWindow::fileOpen( const QString &filter, const QString &extension, const QString &fn, bool inProject  )
{
    statusBar()->message( tr( "Open a file...") );

    QPluginManager<ImportFilterInterface> manager( IID_ImportFilter, QApplication::libraryPaths(), pluginDirectory() );

    Project* project = inProject ? currentProject : eProject;

    QStringList additionalSources;

    {
	QStringList filterlist;
	if ( filter.isEmpty() ) {
	    if ( !inProject )
		filterlist << tr( "Designer Files (*.ui *.pro)" );
	    filterlist << tr( "Qt User-Interface Files (*.ui)" );
	    if ( !inProject )
		filterlist << tr( "QMAKE Project Files (*.pro)" );
	    QStringList list = manager.featureList();
	    for ( QStringList::Iterator it = list.begin(); it != list.end(); ++it )
		filterlist << *it;
	    LanguageInterface *iface = MetaDataBase::languageInterface( project->language() );
	    if ( iface ) {
		filterlist +=  iface->fileFilterList();
		additionalSources += iface->fileExtensionList();
	    }
	    filterlist << tr( "All Files (*)" );
	} else {
	    filterlist << filter;
	}

	QString filters = filterlist.join( ";;" );

	QStringList filenames;
	if ( fn.isEmpty() ) {
	    if ( !inProject ) {
		QString f = QFileDialog::getOpenFileName( QString::null, filters, this, 0,
							  tr("Open" ), &lastOpenFilter );
		filenames << f;
	    } else {
		filenames = QFileDialog::getOpenFileNames( filters, QString::null, this, 0,
							   tr("Add"), &lastOpenFilter );
	    }
	} else {
	    filenames << fn;
	}

	for ( QStringList::Iterator fit = filenames.begin(); fit != filenames.end(); ++fit ) {
	    QString filename = *fit;
	    if ( !filename.isEmpty() ) {
		QFileInfo fi( filename );

		if ( fi.extension( FALSE ) == "pro" && ( extension.isEmpty() || extension.find( ";pro" ) != -1 ) ) {
		    addRecentlyOpened( filename, recentlyProjects );
		    openProject( filename );
		} else if ( fi.extension( FALSE ) == "ui" && ( extension.isEmpty() || extension.find( ";ui" ) != -1 ) ) {
		    if ( !inProject )
			setCurrentProject( eProject );
		    openFormWindow( filename );
		    addRecentlyOpened( filename, recentlyFiles );
		} else if ( !extension.isEmpty() && extension.find( ";" + fi.extension( FALSE ) ) != -1 ||
			    additionalSources.find( fi.extension( FALSE ) ) != additionalSources.end() ) {
		    SourceFile *sf = project->findSourceFile( project->makeRelative( filename ) );
		    if ( !sf )
			sf = new SourceFile( project->makeRelative( filename ), FALSE, project );
		    editSource( sf );
		} else if ( extension.isEmpty() ) {
		    QString filter;
		    for ( QStringList::Iterator it2 = filterlist.begin(); it2 != filterlist.end(); ++it2 ) {
			if ( (*it2).contains( "." + fi.extension( FALSE ), FALSE ) ) {
			    filter = *it2;
			    break;
			}
		    }

		    ImportFilterInterface* iface = 0;
		    manager.queryInterface( filter, &iface );
		    if ( !iface ) {
			statusBar()->message( tr( "No import filter is available to import '%1'").
					      arg( filename ), 3000 );
			return;
		    }
		    statusBar()->message( tr( "Importing '%1' using import filter ...").arg( filename ) );
		    QStringList list = iface->import( filter, filename );
		    iface->release();
		    if ( list.isEmpty() ) {
			statusBar()->message( tr( "Nothing to load in '%1'").arg( filename ), 3000 );
			return;
		    }
		    if ( !inProject )
			setCurrentProject( eProject );
		    addRecentlyOpened( filename, recentlyFiles );
		    for ( QStringList::Iterator it = list.begin(); it != list.end(); ++it ) {
			openFormWindow( *it, FALSE );
			QFile::remove( *it );
		    }
		    statusBar()->clear();
		}
	    }
	}
    }
}

FormWindow *MainWindow::openFormWindow( const QString &filename, bool validFileName, FormFile *ff )
{
    if ( filename.isEmpty() )
	return 0;

    bool makeNew = FALSE;

    if ( !QFile::exists( filename ) ) {
	makeNew = TRUE;
    } else {
	QFile f( filename );
	f.open( IO_ReadOnly );
	QTextStream ts( &f );
	makeNew = ts.read().length() < 2;
    }
    if ( makeNew ) {
	fileNew();
	if ( formWindow() )
	    formWindow()->setFileName( filename );
	return formWindow();
    }

    statusBar()->message( tr( "Reading file '%1'...").arg( filename ) );
    FormFile *ff2 = currentProject->findFormFile( currentProject->makeRelative(filename) );
    if ( ff2 && ff2->formWindow() ) {
	ff2->formWindow()->setFocus();
	return ff2->formWindow();
    }

    if ( ff2 )
	ff = ff2;
    QApplication::setOverrideCursor( WaitCursor );
    Resource resource( this );
    if ( !ff )
	ff = new FormFile( currentProject->makeRelative( filename ), FALSE, currentProject );
    bool b = resource.load( ff ) && (FormWindow*)resource.widget();
    if ( !validFileName && resource.widget() )
	( (FormWindow*)resource.widget() )->setFileName( QString::null );
    QApplication::restoreOverrideCursor();
    if ( b ) {
	rebuildCustomWidgetGUI();
	statusBar()->message( tr( "Loaded file '%1'").arg( filename ), 3000 );
    } else {
	statusBar()->message( tr( "Failed to load file '%1'").arg( filename ), 5000 );
	QMessageBox::information( this, tr("Load File"), tr("Couldn't load file '%1'").arg( filename ) );
	delete ff;
    }
    return (FormWindow*)resource.widget();
}

bool MainWindow::fileSave()
{

    if ( !currentProject->isDummy() )
	return fileSaveProject();
    return fileSaveForm();
}

bool MainWindow::fileSaveForm()
{
    for ( SourceEditor *e = sourceEditors.first(); e; e = sourceEditors.next() ) {
	if ( e->object() == formWindow() || e == qWorkspace()->activeWindow() ) {
	    e->save();
	}
    }

    FormWindow *fw = 0;

    QWidget *w = qWorkspace()->activeWindow();
    if ( w ) {