mainwindow.cpp

Qt/Embedded是一个多平台的C++图形用户界面应用程序框架

    actionEditLower->addTo( rmbWidgets );
    actionEditRaise->addTo( rmbWidgets );
#endif
    rmbWidgets->insertSeparator();
    actionEditAdjustSize->addTo( rmbWidgets );
    actionEditHLayout->addTo( rmbWidgets );
    actionEditVLayout->addTo( rmbWidgets );
    actionEditGridLayout->addTo( rmbWidgets );
    actionEditBreakLayout->addTo( rmbWidgets );
    rmbWidgets->insertSeparator();
    actionEditConnections->addTo( rmbWidgets );

    rmbFormWindow = new QPopupMenu( this );
    actionEditPaste->addTo( rmbFormWindow );
    actionEditSelectAll->addTo( rmbFormWindow );
    actionEditAccels->addTo( rmbFormWindow );
    rmbFormWindow->insertSeparator();
    actionEditAdjustSize->addTo( rmbFormWindow );
    actionEditHLayout->addTo( rmbFormWindow );
    actionEditVLayout->addTo( rmbFormWindow );
    actionEditGridLayout->addTo( rmbFormWindow );
    actionEditBreakLayout->addTo( rmbFormWindow );
    rmbFormWindow->insertSeparator();
    actionEditSlots->addTo( rmbFormWindow );
    actionEditConnections->addTo( rmbFormWindow );
    actionEditFormSettings->addTo( rmbFormWindow );
}

void MainWindow::toolSelected( QAction* action )
{
    actionCurrentTool = action;
    emit currentToolChanged();
    if ( formWindow() )
	formWindow()->commandHistory()->emitUndoRedo();
}

int MainWindow::currentTool() const
{
    if ( !actionCurrentTool )
	return POINTER_TOOL;
    return QString::fromLatin1(actionCurrentTool->name()).toInt();
}

static void unifyFormName( FormWindow *fw, QWorkspace *workspace )
{
    QStringList lst;
    QWidgetList windows = workspace->windowList();
    for ( QWidget *w =windows.first(); w; w = windows.next() ) {
	if ( w == fw )
	    continue;
	lst << w->name();
    }

    if ( lst.findIndex( fw->name() ) == -1 )
	return;
    QString origName = fw->name();
    QString n = origName;
    int i = 1;
    while ( lst.findIndex( n ) != -1 ) {
	n = origName + QString::number( i++ );
    }
    fw->setName( n );
    fw->setCaption( n );
}

void MainWindow::fileNew()
{
    statusBar()->message( tr( "Select a template for the new form...") );
    NewForm dlg( this, templatePath() );
    if ( dlg.exec() == QDialog::Accepted ) {
	NewForm::Form f = dlg.formType();
	if ( f != NewForm::Custom ) {
	    insertFormWindow( f )->setFocus();
	} else {
	    QString filename = dlg.templateFile();
	    if ( !filename.isEmpty() && QFile::exists( filename ) ) {
		Resource resource( this );
		if ( !resource.load( filename ) ) {
		    QMessageBox::information( this, tr("Load Template"),
			tr("Couldn't load form description from template "+ filename ) );
		    return;
		}
		if ( formWindow() )
		    formWindow()->setFileName( QString::null );
		unifyFormName( formWindow(), workspace );
	    }
	}
    }
    statusBar()->clear();
}

void MainWindow::fileOpen()
{
    statusBar()->message( tr( "Select a file...") );
    QString filename = QFileDialog::getOpenFileName( QString::null, Import::filters(), this );
    if ( !filename.isEmpty() ) {
	if ( filename.right( 4 ) == ".pro" ) {
	    QStringList lst = getUiFiles( filename );
	    for ( QStringList::Iterator it = lst.begin(); it != lst.end(); ++it ) {
		QString fn = QUrl( QFileInfo( filename ).dirPath(), *it ).path();
		openFile( fn );
	    }
	} else if ( filename.right( 3 ) == ".ui" ) {
	    openFile( filename );
	} else {
	    statusBar()->message( tr( "Importing %1 using a 3rd party converter, this might take some time...").arg( filename ) );
	    (void)new Import( filename, this ); // deletes itself
	}
    }
}

void MainWindow::openFile( const QString &filename, bool validFileName )
{
    if ( filename.isEmpty() )
	return;

    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 ) {
	statusBar()->message( tr( "Reading file %1...").arg( filename ) );
	if ( QFile::exists( filename ) ) {
	    QApplication::setOverrideCursor( WaitCursor );
	    Resource resource( this );
	    bool b = resource.load( filename ) && (FormWindow*)resource.widget();
	    if ( !validFileName && resource.widget() )
		( (FormWindow*)resource.widget() )->setFileName( QString::null );
	    QApplication::restoreOverrideCursor();
	    qApp->processEvents();
	    if ( b ) {
		rebuildCustomWidgetGUI();
		statusBar()->message( tr( "File %1 opened.").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 ) );	
	    }
	} else {
	    statusBar()->clear();
	}
    } else {
	fileNew();
	if ( formWindow() )
	    formWindow()->setFileName( filename );
    }
}

bool MainWindow::fileSave()
{
    if ( !formWindow() )
	return FALSE;
    if ( formWindow()->fileName().isEmpty() ) {
	return fileSaveAs();
    } else {
	QApplication::setOverrideCursor( WaitCursor );
	formWindow()->save( formWindow()->fileName() );
	QApplication::restoreOverrideCursor();
    }
    return TRUE;
}

bool MainWindow::fileSaveAs()
{
    statusBar()->message( tr( "Enter a filename..." ) );
    if ( !formWindow() )
	return FALSE;
    FormWindow *fw = formWindow();
    QString filename = QFileDialog::getSaveFileName( QString::null, tr( "Qt User-Interface Files (*.ui);;All Files (*)" ),
						     this );
    if ( filename.isEmpty() )
	return FALSE;
    QFileInfo fi( filename );
    if ( fi.extension() != "ui" )
	filename += ".ui";
    fw->setFileName( filename );
    fileSave();
    return TRUE;
}

void MainWindow::fileSaveAll()
{
    QWidgetList windows = workSpace()->windowList();
    for ( QWidget *w = windows.first(); w; w = windows.next() ) {
	if ( !w->inherits( "FormWindow" ) )
	    continue;
	w->setFocus();
	qApp->processEvents();
	fileSave();
    }
}

static bool inSaveAllTemp = FALSE;
void MainWindow::saveAllTemp()
{
    if ( inSaveAllTemp )
	return;
    inSaveAllTemp = TRUE;
    statusBar()->message( tr( "Qt Designer is crashing - saving work as good as possible..." ) );
    QWidgetList windows = workSpace()->windowList();
    QString baseName = QString( getenv( "HOME" ) ) + "/.designer/saved-form-";
    int i = 1;
    for ( QWidget *w = windows.first(); w; w = windows.next() ) {
	if ( !w->inherits( "FormWindow" ) )
	    continue;
	
	QString fn = baseName + QString::number( i++ ) + ".ui";
	( (FormWindow*)w )->setFileName( fn );
	( (FormWindow*)w )->save( fn );
    }
    inSaveAllTemp = FALSE;
}

void MainWindow::fileCreateTemplate()
{
    CreateTemplate dia( this, 0, TRUE );

    for ( int i = 0; i < WidgetDatabase::numWidgetGroups(); ++i ) {
	if ( WidgetDatabase::isContainer( i ) && WidgetDatabase::className( i ) != "QTabWidget" )
	    dia.listClass->insertItem( WidgetDatabase::className( i ) );
    }
    QList<MetaDataBase::CustomWidget> *lst = MetaDataBase::customWidgets();
    for ( MetaDataBase::CustomWidget *w = lst->first(); w; w = lst->next() ) {
	if ( w->isContainer )
	    dia.listClass->insertItem( w->className );
    }

    dia.editName->setText( tr( "NewTemplate" ) );
    connect( dia.buttonCreate, SIGNAL( clicked() ),
	     this, SLOT( createNewTemplate() ) );
    dia.exec();
}

void MainWindow::editUndo()
{
    if ( formWindow() )
 	formWindow()->undo();
}

void MainWindow::editRedo()
{
    if ( formWindow() )
	formWindow()->redo();
}

void MainWindow::editCut()
{
    editCopy();
    editDelete();
}

void MainWindow::editCopy()
{
    if ( formWindow() )
	qApp->clipboard()->setText( formWindow()->copy() );
}

void MainWindow::editPaste()
{
    if ( !formWindow() )
	return;

    QWidget *w = formWindow()->mainContainer();
    QWidgetList l( formWindow()->selectedWidgets() );
    if ( l.count() == 1 ) {
	w = l.first();
	if ( WidgetFactory::layoutType( w ) != WidgetFactory::NoLayout ||
	     ( !WidgetDatabase::isContainer( WidgetDatabase::idFromClassName( WidgetFactory::classNameOf( w ) ) ) &&
	       w != formWindow()->mainContainer() ) )
	    w = formWindow()->mainContainer();
    }

    if ( w && WidgetFactory::layoutType( w ) == WidgetFactory::NoLayout ) {
	formWindow()->paste( qApp->clipboard()->text(), WidgetFactory::containerOfWidget( w ) );
	hierarchyView->widgetInserted( 0 );
	formWindow()->commandHistory()->setModified( TRUE );
    } else {
	// #### should we popup a messagebox here which says that
	// nothing has been pasted because you can't paste into a
	// laid out widget? (RS)
    }
}

void MainWindow::editDelete()
{
    if ( formWindow() )
	formWindow()->deleteWidgets();
}

void MainWindow::editSelectAll()
{
    if ( formWindow() )
	formWindow()->selectAll();
}


void MainWindow::editLower()
{
    if ( formWindow() )
	formWindow()->lowerWidgets();
}

void MainWindow::editRaise()
{
    if ( formWindow() )
	formWindow()->raiseWidgets();
}

void MainWindow::editAdjustSize()
{
    if ( formWindow() )
	formWindow()->editAdjustSize();
}

void MainWindow::editLayoutHorizontal()
{
    if ( layoutChilds )
	editLayoutContainerHorizontal();
    else if ( layoutSelected && formWindow() )
	formWindow()->layoutHorizontal();
}

void MainWindow::editLayoutVertical()
{
    if ( layoutChilds )
	editLayoutContainerVertical();
    else if ( layoutSelected && formWindow() )
	formWindow()->layoutVertical();
}

void MainWindow::editLayoutGrid()
{
    if ( layoutChilds )
	editLayoutContainerGrid();
    else if ( layoutSelected && formWindow() )
	formWindow()->layoutGrid();