cleanupwizard.cpp

来自「Trolltech公司发布的图形界面操作系统。可在qt-embedded-2.3」· C++ 代码 · 共 1,132 行 · 第 1/3 页

#ifdef QTOPIA_PHONE
            tooltip = new QLabel(this, "TooltipLabel");
            tooltip->setFrameStyle(QFrame::Panel|QFrame::Raised);
            tooltip->setAlignment(Qt::AlignCenter | Qt::WordBreak);
            tooltip->setBackgroundMode(QWidget::PaletteHighlightedText);
            tooltip->setAutoResize(TRUE);
            tooltip->hide();
            
            timer = new QTimer(this, "TooltipTimer");
#endif
        }

        virtual ~DocResultWidget() { };

        void performSearch()
        {  
            list->clear();
            DocLnk *dl;
            DocLnkSet allDocs;
            selectedFileSize = 0;
            uint hits = 0;
#ifdef QTOPIA_PHONE
            int width = (list->width()- list->style().scrollBarExtent().width()) /2  ;
#endif
            QFontMetrics fmt = list->fontMetrics();
            for (QStringList::ConstIterator fit=filter.begin(); fit != filter.end(); ++fit) {
                DocLnkSet resultDocs;
                Global::findDocuments( &resultDocs, *fit );

                const QList<DocLnk> doclist = resultDocs.children();
                QListIterator<DocLnk> it(doclist);
                DocCheckListItem *item = 0; 
                QString unit;
                int displayedSize;
                while ((dl=it.current())) {
                    QFileInfo fInfo(dl->file());
                    //qDebug("%s %i", dl->name().latin1(), fInfo.size());
                    if (minFileSize*1024 < (int)fInfo.size()){
                        item = new DocCheckListItem(list, 
#ifdef QTOPIA_PHONE
                                calcVisibleStrg(dl->name(), fmt, width)
#else
                                dl->name()
#endif
                                , QCheckListItem::CheckBox, *dl);
                        selectedFileSize += fInfo.size(); //ignore size of link file (insignificant size)
                        item->setOn(TRUE);
                        sizeUnit(fInfo.size(), unit, &displayedSize);
                        bool isMB = FALSE;
                        if ( fInfo.size()/1024 > 10000 )
                            isMB = TRUE;
                        item->setText(1, tr("%1 %2").arg(displayedSize).arg(unit));
 
                        list->insertItem(item);
                        connect(item, SIGNAL(selectionChanged(int)), this, SLOT(selectionChanged(int)) );
                        hits++;
                    }
                    ++it;
                }
            }
           qDebug("%i documents found", hits);
             
            if (!hits) {
                summary->setText(tr("<qt>There are no documents on this device"
                    " that match the given filter critieria.</qt>"));
                list->hide();
                details->hide();
                summary->setFocus();//update ContextBar
            } else {
               
                QString unit;
                int displayedSize = 0;
                sizeUnit(selectedFileSize, unit, &displayedSize);
                    
                summary->setText(tr("<qt>%1 documents have been found. "
                           "Deleting these documents would free up %2 %3 of "
                           "storage.</qt>", "%1 = number, %2 = number, %3 = MB/kB/Bytes" )
                        .arg(hits)
                        .arg(displayedSize).arg(unit));
                
                details->setText(tr("Show details"));
                details->disconnect();
                connect(details, SIGNAL(clicked()), this, SLOT(showDetails()));
                list->hide();  
                details->setFocus();
                details->show();
                
            }
        };

    public slots:        
        void cleanup() {
            
            DocCheckListItem *item = (DocCheckListItem *) list->firstChild();
            if (!item) //empty list
                return;
            
            qDebug("Deleting Documents...");
            while (item && !cleanupStopped) {
                if (item->isOn()) {
                    QFileInfo info(item->docLink().file());
                    emit docDeleted(item->docLink().name(), info.size());
                    qApp->processEvents();
                    item->docLink().removeFiles();
                    item->setOn(FALSE); // uncheck to keep track what was done
                }
                item = (DocCheckListItem *) item->nextSibling();
            }

            if (cleanupStopped)
                emit docDeleted(tr("Aborted"), -1);
            else {
                emit docDeleted(tr("Done"), -1);
                list->clear();
            }
            
        };

        void stopCleanup() {
            cleanupStopped = TRUE;
            
        };
    public:

        void setMinimalFileSize(int minSize) { minFileSize = minSize; };
        
        void setFilter(QStringList& filterList) { filter = filterList; };

        uint hasDocumentsToRemove(){ return selectedFileSize; };

    signals:
        void docDeleted(const QString & fileName, int fileSize);

    protected:
        void showEvent(QShowEvent *se) {
            cleanupStopped = FALSE;
            QWidget::showEvent(se);
        };
#ifdef QTOPIA_PHONE
        void hideEvent(QHideEvent *) {
            tooltip->hide();
            timer->stop();
        };
#endif
    private slots:
        void showDetails() {
            details->hide();
            selectionChanged(0);
            list->show();
            list->setFocus();
        };
        
        //fileSize in Bytes - display in unit
        void sizeUnit(int fileSize, QString& unit, int* display)
        {
            if (fileSize < 1024){
                unit = tr("bytes");
                *display=fileSize;
            } else if (fileSize / 1024 < 10240) {// < 10MB
                unit = tr("kB", "KiloByte");
                *display = fileSize/1024;
            } else {
                unit = tr("MB", "MegaByte");
                *display = fileSize/1024/1024;
            }
        };
    
        void selectionChanged(int size) {
            selectedFileSize += size;
            QString unit;
            int displayedSize;
            sizeUnit(selectedFileSize, unit, &displayedSize);
            summary->setText(tr("<qt>Uncheck documents you want to "
                        "keep (%1 %2 selected)</qt>")
                    .arg(displayedSize).arg(unit));
#ifdef QTOPIA_PHONE
            tooltip->hide();
#endif
        };
        void documentSelected(QListViewItem * item) {
#ifdef QTOPIA_PHONE    
            tooltip->hide();
            if (!item)
                return;
            DocCheckListItem * dcli = (DocCheckListItem*) item;
            
            connect(timer, SIGNAL(timeout()), this, SLOT(showToolTip()));
            timer->start(1000, TRUE);
            
            tooltip->setText(dcli->docLink().name());
            
            int x = (width() - tooltip->width())/2;
            
            tooltip->move(x, 0);
#else
            Q_UNUSED(item);
#endif
        };
        
        void showToolTip() {
#ifdef QTOPIA_PHONE
            tooltip->raise();
            tooltip->show();  
            timer->disconnect();
            connect(timer, SIGNAL(timeout()), this, SLOT(hideToolTip()));
            timer->start(2000, TRUE);
#endif
        };

        void hideToolTip() {
#ifdef QTOPIA_PHONE
            tooltip->hide();
#endif
        };

    private:
#ifdef QTOPIA_PHONE
        QString calcVisibleStrg(const QString& text, QFontMetrics& fmt, int availSpace) {
            int i = 1;
            int length = text.length();
            while (i <= length && fmt.width(text, i) < availSpace) 
                i++;
            if (i <= length)
                return text.left(i-3)+"..."; //no tr 
            else
                return text;
        };
        
        QLabel * tooltip;
        QTimer * timer;
#endif
        QListView *list;
        QLabel *summary ;
        QPushButton *details;
        int minFileSize;
        QStringList filter;
        uint selectedFileSize;
        bool cleanupStopped;

        enum SizeCategory { Bytes, KBytes, MBytes };
        friend class CleanupWizard;
};


class MailCleanWidget : public QWidget {
    Q_OBJECT
    public:
        MailCleanWidget(QWidget* p = 0, const char* name = 0, WFlags f = 0)
            :QWidget(p, name, f)
        {
            QVBoxLayout* vl = new QVBoxLayout(this);
            vl->setSpacing( 6 );
            vl->setMargin( 0 );
#ifdef QTOPIA_PHONE
            vl->addWidget(new QLabel(tr("<qt>Cleanup Messages</qt>"), this));

            QFrame *line = new QFrame( this, "Line");
            line->setFrameStyle(QFrame::HLine | QFrame::Sunken );
            vl->addWidget(line);
#endif
            QGridLayout *grid = new QGridLayout(vl, 2, 2, 3);
            grid->addWidget(new QLabel(tr("older than"), this), 0, 0);
            dp = new QPEDateEdit( this, 0, FALSE, TRUE );
            grid->addWidget( dp, 0, 1 );

            grid->addWidget(new QLabel(tr("bigger than"), this), 1, 0);
            sizeBox = new QSpinBox( 0, 10000, 10, this );
            sizeBox->setButtonSymbols(QSpinBox::UpDownArrows);
            sizeBox->setSuffix(" " + tr("kB", "KiloByte"));
            sizeBox->setMinValue( 0 );
            sizeBox->setMaxValue( 100000 );
            sizeBox->setValue( 10 );
            sizeBox->setLineStep( 10 );
            grid->addWidget(sizeBox, 1, 1);
            
            QSpacerItem *spacer = new QSpacerItem( 20, 20, QSizePolicy::Minimum,
                    QSizePolicy::Expanding);
            vl->addItem(spacer);
 
        };
    
    private:
        QSpinBox *sizeBox;
        QPEDateEdit *dp;
    friend class CleanupWizard;
};

class DatebookCleanWidget : public QWidget {
    Q_OBJECT
    public:
        DatebookCleanWidget(QWidget* p = 0, const char* name = 0, WFlags f = 0)
            :QWidget(p, name, f)
        {   
            QVBoxLayout* vl = new QVBoxLayout(this);
            vl->setSpacing( 6 );
            vl->setMargin( 0 );
#ifdef QTOPIA_PHONE
            vl->addWidget(new QLabel(tr("<qt>Cleanup Events</qt>"), this));

            QFrame *line = new QFrame( this, "Line");
            line->setFrameStyle(QFrame::HLine | QFrame::Sunken );
            vl->addWidget(line);
#endif
            QGridLayout *grid = new QGridLayout(vl, 2, 2, 3);
            grid->addWidget(new QLabel(tr("older than"), this), 0, 0);

            dp = new QPEDateEdit( this, 0, FALSE, TRUE );
            grid->addWidget( dp, 0, 1 );
 
            QSpacerItem *spacer = new QSpacerItem( 20, 20, QSizePolicy::Minimum,
                    QSizePolicy::Expanding);
            vl->addItem(spacer);
 
        };
    
    private:
        QSpinBox *dayBox;
        QPEDateEdit *dp;
    friend class CleanupWizard;
};

CleanupWizard::CleanupWizard(QWidget * parent, const char* name, WFlags fl) 
#ifdef QTOPIA_PHONE
    : QWidget(parent, name, fl ), wStack(0)
#else
    : QWizard(parent, name, TRUE, fl)
#endif
{
    setCaption(tr("Cleanup Wizard"));

#ifdef QTOPIA_PHONE
    QVBoxLayout* vb = new QVBoxLayout(this) ;
    wStack = new QWidgetStack(this);
    vb->addWidget(wStack);
#endif
    init();
}

CleanupWizard::~CleanupWizard() 
{  
}

void CleanupWizard::init() 
{
    m_PreselectionWidget = new PreselectionWidget(this);
    m_PreselectionWidget->installEventFilter(this);
    m_DocCleanWidget = new DocCleanWidget(this);
    m_DocResultWidget = new DocResultWidget(this);
    m_DocSummaryWidget = new DocSummaryWidget(this);
    m_MailCleanWidget = new MailCleanWidget(this);
    m_DatebookCleanWidget = new DatebookCleanWidget(this);
    m_FinalCleanupWidget = new FinalCleanupWidget(this);

#ifdef QTOPIA_PHONE 
    wStack->addWidget(m_PreselectionWidget, 0);
    wStack->addWidget(m_DocCleanWidget, 1);
    wStack->addWidget(m_DocResultWidget, 2);
    wStack->addWidget(m_DocSummaryWidget, 3);
    wStack->addWidget(m_MailCleanWidget, 4);
    wStack->addWidget(m_DatebookCleanWidget, 5);
    wStack->addWidget(m_FinalCleanupWidget, 6);
    
    wStack->raiseWidget(m_PreselectionWidget);
#else
    addPage(m_PreselectionWidget, qApp->translate("PreselectionWidget", "What would you like to clean up?"));
    addPage(m_DocCleanWidget, tr("Cleanup Documents"));
    addPage(m_DocResultWidget, tr("Cleanup Documents"));
    addPage(m_DocSummaryWidget, tr("Cleanup Documents"));
    addPage(m_MailCleanWidget, tr("Cleanup Messages"));
    addPage(m_DatebookCleanWidget, tr("Cleanup Events"));
    addPage(m_FinalCleanupWidget, tr("Results"));

    helpButton()->setEnabled(FALSE);
    helpButton()->hide();
    setFinishEnabled(m_FinalCleanupWidget, TRUE);
#endif

    connect(m_DocSummaryWidget, SIGNAL(startDocCleanup()),