mainwindow.cpp

Trolltech公司发布的图形界面操作系统。可在qt-embedded-2.3.10平台上编译为嵌入式图形界面操作系统。

	    refStream << tmpTable->currentEntry().uid().toString();
	    QDLLink newLink("todolist",  dataRef, tmpTable->currentEntry().description(),  "todolist/TodoList");
	    e << newLink;

	}
	delete diag;
    } else if( msg == "QDLActivateLink(QByteArray)" ) {
	needShow = TRUE;
	QDataStream stream( data, IO_ReadOnly );
	QByteArray dataRef;
	stream >> dataRef;
	QDataStream refStream( dataRef, IO_ReadOnly );
	QString dataRefStr;
	refStream >> dataRefStr;
	QUuid uid( dataRefStr  );
	table->setCurrentEntry( uid );
	showListView();
#endif
    } 
    
    if ( needShow ) {
#if defined(Q_WS_QWS) || defined(_WS_QWS_)
//	showMaximized();
#else
//	show();
#endif
//	raise();
	QPEApplication::setKeepRunning();
//	setActiveWindow();
    }
}

void TodoWindow::showListView()
{
    if ( centralWidget() != listView ) {
	backAction->setEnabled(FALSE);
	todoView()->hide();
	setCentralWidget( listView );
	listView->show();
	table->setFocus();
	setCaption( tr("Tasks") );
#ifdef QTOPIA_PHONE
	newAction->setEnabled(TRUE);
	actionCategory->setEnabled(TRUE);
	editAction->setEnabled(FALSE);
	deleteAction->setEnabled(FALSE);
	if (beamAction) beamAction->setEnabled(FALSE);
#endif
    }
}

void TodoWindow::showDetailView()
{
    if (centralWidget() != todoView()) {
	backAction->setEnabled(TRUE);
	todoView()->init( table->currentEntry() );
	listView->hide();
	setCentralWidget( todoView() );
	todoView()->show();
	todoView()->setFocus();  //To avoid events being passed to QTable
	setCaption( tr("Task Details") );
#ifdef QTOPIA_PHONE
	newAction->setEnabled(FALSE);
	actionCategory->setEnabled(FALSE);
	editAction->setEnabled(TRUE);
	deleteAction->setEnabled(TRUE);
	if (beamAction) beamAction->setEnabled(TRUE);
#endif
    }
}

TodoView* TodoWindow::todoView()
{
    if ( !tView ) {
	tView = new TodoView(this);
	tView->setMargin(0);
	connect( tView, SIGNAL(done()), this, SLOT(showListView()) );
	connect( tView, SIGNAL(previous()), this, SLOT(viewPrevious()) );
	connect( tView, SIGNAL(next()), this, SLOT(viewNext()) );
#ifdef QTOPIA_PHONE
	ContextBar::setLabel(tView, Key_Select, ContextBar::NoLabel);
#endif
    }

    return tView;
}

void TodoWindow::createNewEntry()
{
#ifdef QTOPIA_PHONE
    TaskDialog e( -2, this, "edit-screen", TRUE );
#else
    TaskDialog e( catSelect->currentCategory(), this, "edit-screen", TRUE );
#endif
    e.setCaption( tr( "New Task" ) );

    int ret = QPEApplication::execDialog(&e);

    if ( ret == QDialog::Accepted ) {
	PimTask todo = e.todoEntry();
	if ( todo.description().isEmpty() && !todo.notes().isEmpty() ) {
	    // Don't want to loose an entry that has some useful data
	    QString desc = todo.notes();
#ifdef QTOPIA_DATA_LINKING
	    // filter out any qdl fields
	    desc = QDL::removeLids(desc);
#endif
	    if ( desc.length() > 30 ) {
		// keep description length sensible
		desc.truncate(27);
		desc.append( "..." ); // no tr
	    }
	    todo.setDescription( desc );
	}
	if ( !todo.description().isEmpty() ) {
	    table->addEntry( todo );
	    findAction->setEnabled( TRUE );
	    currentEntryChanged( );
	    showListView();
	}
    }
}

void TodoWindow::deleteCurrentEntry()
{
    if ( table->currentRow() == -1 )
        return;

    QString strName = table->currentEntry().description().left(30);

    if ( table->selectionMode() == TodoTable::Extended ) {
	QValueList<int> t = table->selectedTasks();
	
	if ( !t.count() ) return;
	
	QString str;
	if ( t.count() > 1 )
	    str = tr("<qt>Are you sure you want to delete the %1 selected tasks?</qt>").arg( t.count() );
	else
	    str = tr("<qt>Are you sure you want to delete:<p><b>%1</b>?</qt>").arg( table->currentEntry().description().left(30)  );

	switch( QMessageBox::warning( this, tr("Tasks"), str, tr("Yes"), tr("No"), 0, 0, 1 ) ) {
	    case 0:
	    {
		table->removeList(t);
		currentEntryChanged();
		showListView();
	    }
	    break;
	    case 1: break;
	}
    } else if ( QPEMessageBox::confirmDelete( this, tr( "Tasks" ),
	strName.simplifyWhiteSpace() ) ) {
	table->removeEntry( table->currentEntry() );
	currentEntryChanged();
	showListView();
    }
    if ( !table->numRows() && findAction->isOn()) {
	findAction->setOn(FALSE);
    }
}

void TodoWindow::editCurrentEntry()
{
    PimTask todo = table->currentEntry();

    TaskDialog e( todo, this, "edit-screen", TRUE );
    e.setCaption( tr( "Edit Task" ) );

    int ret = QPEApplication::execDialog(&e);

    if ( ret == QDialog::Accepted ) {
        todo = e.todoEntry();
	table->updateEntry( todo );
	if (table->currentEntry().uid() != todo.uid())
	    showListView();
	if ( centralWidget() == todoView() ) {
	    todoView()->init( table->currentEntry() );
	    tView->setFocus();  //To avoid events being passed to QTable
	}
    }
    
}

void TodoWindow::viewPrevious()
{
    int cr = table->currentRow();
    if ( --cr >= 0 ) {
	table->setCurrentCell( cr, table->currentColumn() );
	todoView()->init( table->currentEntry() );
    }
}

void TodoWindow::viewNext()
{
    int cr = table->currentRow();
    if ( ++cr < table->numRows() ) {
	table->setCurrentCell( cr, table->currentColumn() );
	todoView()->init( table->currentEntry() );
    }
}

void TodoWindow::setShowCompleted( int s )
{
    if ( !table->isUpdatesEnabled() )
	return;
    table->setCompletedFilter( s != 1 );
    table->reload();
}

void TodoWindow::currentEntryChanged( )
{
    bool entrySelected = table->hasCurrentEntry();

#ifndef QTOPIA_PHONE
    editAction->setEnabled(entrySelected);
    deleteAction->setEnabled(entrySelected);
    if (beamAction) beamAction->setEnabled(entrySelected);
#endif
    findAction->setEnabled(entrySelected);
}

void TodoWindow::reload()
{
    table->loadData();
#ifndef QTOPIA_PHONE
    QArray<int> vl( 0 );
    catSelect->setCategories( vl, "Todo List", // No tr
	tr("Tasks") );
    catSelect->setAllCategories( TRUE );
    
    catSelected( catSelect->currentCategory() );
#else
    catSelected( -2 );
#endif
    table->reload();
    if ( centralWidget() == tView )
	showDetailView();
}

void TodoWindow::flush()
{
    table->saveData();
}

void TodoWindow::catSelected( int c )
{
    table->setFilter( c ); // WAH? Why?
    table->reload(); // WAH? Why?
#ifndef QTOPIA_PHONE
    setCaption( tr("Tasks") + " - " + table->categoryLabel( c ) );
#else
    if (c == -2) {
	categoryLbl->hide();
    } else {
	categoryLbl->setText(tr("Category: %1").arg(table->categoryLabel(c)));
	categoryLbl->show();
    }
#endif
}

// Loop through and validate the categories.  If any records' category list was
// modified we need to update
void TodoWindow::catChanged()
{
    Categories c;
    c.load( categoryFileName() );
    QArray<int> cats = c.ids("Todo List", c.labels("Todo List", TRUE) ); // No tr
    if (table->categoriesChanged(cats))
	reload();
}

void TodoWindow::closeEvent( QCloseEvent *e )
{
    e->accept();
    // repeat for categories...
    // if writing configs fail, it will emit an
    // error, but I feel that it is "ok" for us to exit
    // espically since we aren't told if the write succeeded...
    Config config( "todo" );
    config.setGroup( "View" );
    config.writeEntry( "ShowComplete", !table->completedFilter() );
    config.writeEntry( "Category", table->filter() );
}

#ifdef QTOPIA_PHONE
void TodoWindow::keyPressEvent(QKeyEvent *e)
{
    QMainWindow::keyPressEvent(e);
    if ( !e->isAccepted() && (e->key() == Key_Back || e->key() == Key_No)) {
	e->accept();
	if ( centralWidget() == tView )
	    showListView();
	else
	    close();
    }
}
#endif

void TodoWindow::showFindWidget( bool s )
{
    showListView();
    if ( s ) {
	searchBar->show();
	searchEdit->setFocus();
    } else {
	searchBar->hide();
	if ( table->numSelections() )
	    table->clearSelection();
	table->clearFindRow();
    }
}

void TodoWindow::search()
{
    table->find( searchEdit->text() );
}

void TodoWindow::findNotFound()
{
    Global::statusMessage( tr("Find: not found") );
}

void TodoWindow::findFound()
{
    Global::statusMessage( "" );
}

void TodoWindow::findWrapped()
{
    Global::statusMessage( tr("Find: reached end") );
}

void TodoWindow::setDocument( const QString &filename )
{
    DocLnk doc(filename);
    if ( doc.isValid() )
	receiveFile(doc.file());
    else
	receiveFile(filename);
}

bool TodoWindow::receiveFile( const QString &filename )
{
    QValueList<PimTask> tl = PimTask::readVCalendar( filename );

    if (tl.count() < 1) {
	// should spit out more appropriate message.
	QMessageBox::information(this, tr("New Tasks"),
		    tr("<p>Received empty task list.  No tasks added"),
		    QMessageBox::Ok);
	return FALSE;
    }
    QString msg = tr("<P>%1 new tasks.<p>Do you want to add them to your Tasks?").
	arg(tl.count());

    if ( QMessageBox::information(this, tr("New Tasks"),
	    msg, QMessageBox::Ok, QMessageBox::Cancel)==QMessageBox::Ok ) {
	for( QValueList<PimTask>::Iterator it = tl.begin(); it != tl.end(); ++it ) {
	    table->addEntry( *it );
	}
	return TRUE;
    }
    return FALSE;
}


void TodoWindow::beamCurrentEntry()
{
    if ( !table->hasCurrentEntry() ) {
	qWarning("todo::beamCurrentEntry called with nothing to beam");
	return;
    }
    
    QString description;

    ::unlink( beamfile.local8Bit().data() ); // delete if exists
    PimTask c = table->currentEntry();
    if ( table->selectionMode() == TodoTable::Extended ) {
	QValueList<PimTask> l = table->selected();
	PimTask::writeVCalendar( beamfile, l );
	
	if ( l.count() > 1 )
	    description = tr("the %1 selected tasks").arg( l.count() );
	else
	    description = c.description();
    } else {
	PimTask::writeVCalendar( beamfile, c );
	description = c.description();
    }
    
#if defined(Q_WS_QWS) || defined(_WS_QWS_)
    Ir *ir = new Ir( this );
    connect( ir, SIGNAL( done(Ir*) ), this, SLOT( beamDone(Ir*) ) );
    ir->send( beamfile, description, "text/x-vCalendar" );
#endif
}

void TodoWindow::beamDone( Ir *ir )
{
#if defined(Q_WS_QWS) || defined(_WS_QWS_)
    delete ir;
    ::unlink( beamfile.local8Bit().data() );
#endif
}

void TodoWindow::configure()
{
    TodoSettings settings(this, "", TRUE);
    settings.setCurrentFields( table->fields() );
    if ( QPEApplication::execDialog(&settings) == QDialog::Accepted ) {
	table->setFields( settings.fields() );
	table->reload(); // WAH? Why?
    }
}

void TodoWindow::selectAll()
{
    table->selectAll();
}

void TodoWindow::selectCategory()
{
#ifdef QTOPIA_PHONE
    if (!categoryDlg) {
	categoryDlg = new CategorySelectDialog("Todo List", this, 0, TRUE);
	categoryDlg->setAllCategories(TRUE);
	connect(categoryDlg, SIGNAL(selected(int)), this, SLOT(catSelected(int)));
    }

    QPEApplication::execDialog(categoryDlg);
#endif
}