C++ QClipboard::supportsSelection方法代码示例

// Claim the selection.
void ScintillaQt::ClaimSelection()
{
    bool isSel = !sel.Empty();

    if (isSel)
    {
        QClipboard *cb = QApplication::clipboard();

        // If we support X11 style selection then make it available now.
        if (cb->supportsSelection())
        {
            SelectionText text;

            CopySelectionRange(&text);

            if (text.s)
                cb->setMimeData(mimeSelection(text), QClipboard::Selection);
        }

        primarySelection = true;
    }
    else
        primarySelection = false;

    emit qsb->QSCN_SELCHANGED(isSel);
}

//------------------------------------------------------------------------------
//
void XxCopyLabel::mousePressEvent( QMouseEvent* event )
{
   QClipboard *cb = QkApplication::clipboard();
   cb->setText( _fulltext, cb->supportsSelection() ? 
                       QClipboard::Selection :
                       QClipboard::Clipboard );
   QLabel::mousePressEvent( event );
}

void copyToClipboard(const QString &text)
{
  QClipboard *cb = QApplication::clipboard();
  cb->setText(text, QClipboard::Clipboard);
  if(cb->supportsSelection()) {
    cb->setText(text, QClipboard::Selection);
  }
}

// The ctor.
QsciScintillaBase::QsciScintillaBase(QWidget *parent)
    : QAbstractScrollArea(parent), preeditPos(-1), preeditNrBytes(0)
#if QT_VERSION >= 0x050000
        , clickCausedFocus(false)
#endif
{
    connect(verticalScrollBar(), SIGNAL(valueChanged(int)),
            SLOT(handleVSb(int)));

    connect(horizontalScrollBar(), SIGNAL(valueChanged(int)),
            SLOT(handleHSb(int)));

    setAcceptDrops(true);
    setFocusPolicy(Qt::WheelFocus);
    setAttribute(Qt::WA_KeyCompression);
    setAttribute(Qt::WA_InputMethodEnabled);
#if QT_VERSION >= 0x050100
    setInputMethodHints(
            Qt::ImhNoAutoUppercase|Qt::ImhNoPredictiveText|Qt::ImhMultiLine);
#elif QT_VERSION >= 0x040600
    setInputMethodHints(Qt::ImhNoAutoUppercase|Qt::ImhNoPredictiveText);
#endif

    viewport()->setBackgroundRole(QPalette::Base);
    viewport()->setMouseTracking(true);
    
    //viewport()->setAttribute(Qt::WA_NoSystemBackground);
    //viewport()->setAutoFillBackground(false);
    //viewport()->setAttribute(Qt::WA_OpaquePaintEvent);     
    // QPainter p( viewport() );
    // p.setCompositionMode( QPainter::CompositionMode_Clear );
    // p.fillRect( viewport()->rect(), Qt::transparent );
    
    triple_click.setSingleShot(true);

#if (QT_VERSION >= 0x040200 && QT_VERSION < 0x050000 && defined(Q_OS_MAC)) || (QT_VERSION >= 0x050200 && defined(Q_OS_OSX))
    initialiseRectangularPasteboardMime();
#endif

    sci = new QsciScintillaQt(this);

    SendScintilla(SCI_SETCARETPERIOD, QApplication::cursorFlashTime() / 2);

    // Make sure the lexers are linked in.
    if (!lexersLinked)
    {
        Scintilla_LinkLexers();
        lexersLinked = true;
    }

    QClipboard *cb = QApplication::clipboard();

    if (cb->supportsSelection())
        connect(cb, SIGNAL(selectionChanged()), SLOT(handleSelection()));

    // Add it to the pool.
    poolList.append(this);
}

void GwtCallback::setGlobalMouseSelection(QString selection)
{
#ifdef Q_OS_LINUX
   QClipboard* clipboard = QApplication::clipboard();
   if (clipboard->supportsSelection())
      clipboard->setText(selection, QClipboard::Selection);
   s_globalMouseSelection = selection;
#endif
}

void KviTopicWidget::copy()
{
	QClipboard * c = QApplication::clipboard();
	if(!c)
		return;
	if(c->supportsSelection())
		c->setText(m_szTopic,QClipboard::Selection);
	c->setText(m_szTopic,QClipboard::Clipboard);
}

void CoordinateCapture::copy()
{
  QClipboard *myClipboard = QApplication::clipboard();
  //if we are on x11 system put text into selection ready for middle button pasting
  if ( myClipboard->supportsSelection() )
  {
    myClipboard->setText( mpUserCrsEdit->text() + "," + mpCanvasEdit->text(), QClipboard::Selection );
  }

  myClipboard->setText( mpUserCrsEdit->text() + "," + mpCanvasEdit->text(), QClipboard::Clipboard );
}

// The ctor.
QsciScintillaBase::QsciScintillaBase(QWidget *parent, const char *name,
        WFlags f)
    : QWidget(parent, name, f)
{
    QGridLayout *layout = new QGridLayout(this, 2, 2);

    txtarea = new QWidget(this, 0, WRepaintNoErase|WResizeNoErase);
    txtarea->setSizePolicy(QSizePolicy(QSizePolicy::Expanding,
                QSizePolicy::Expanding));
    txtarea->setMouseTracking(true);
    txtarea->setAcceptDrops(true);
    txtarea->setFocusPolicy(WheelFocus);
    txtarea->setFocusProxy(this);
    layout->addWidget(txtarea, 0, 0);

    vsb = new QScrollBar(Vertical, this);
    layout->addWidget(vsb, 0, 1);
    connect(vsb, SIGNAL(valueChanged(int)), SLOT(handleVSb(int)));

    hsb = new QScrollBar(Horizontal, this);
    layout->addWidget(hsb, 1, 0);
    connect(hsb, SIGNAL(valueChanged(int)), SLOT(handleHSb(int)));

    txtarea->installEventFilter(this);

    setFocusPolicy(WheelFocus);

// FIXME: QMacPasteboardMime isn't in Qt v5 yet.
#if QT_VERSION >= 0x040200 && defined(Q_OS_MAC) && QT_VERSION < 0x050000
    RectangularPasteboardMime::initialise();
#endif

    sci = new QsciScintillaQt(this);

    SendScintilla(SCI_SETCARETPERIOD, QApplication::cursorFlashTime() / 2);

    // Make sure the lexers are linked in.
    if (!lexersLinked)
    {
        Scintilla_LinkLexers();
        lexersLinked = true;
    }

    QClipboard *cb = QApplication::clipboard();

    if (cb->supportsSelection())
        connect(cb, SIGNAL(selectionChanged()), SLOT(handleSelection()));

    // Add it to the pool.
    poolList.append(this);
}

// Handle a mouse button press.
void QsciScintillaBase::mousePressEvent(QMouseEvent *e)
{
    setFocus();

    QSCI_SCI_NAMESPACE(Point) pt(e->x(), e->y());

    if (e->button() == Qt::LeftButton)
    {
        unsigned clickTime;

        // It is a triple click if the timer is running and the mouse hasn't
        // moved too much.
        if (triple_click.isActive() && (e->globalPos() - triple_click_at).manhattanLength() < QApplication::startDragDistance())
            clickTime = sci->lastClickTime + QSCI_SCI_NAMESPACE(Platform)::DoubleClickTime() - 1;
        else
            clickTime = sci->lastClickTime + QSCI_SCI_NAMESPACE(Platform)::DoubleClickTime() + 1;

        triple_click.stop();

        // Scintilla uses the Alt modifier to initiate rectangular selection.
        // However the GTK port (under X11, not Windows) uses the Control
        // modifier (by default, although it is configurable).  It does this
        // because most X11 window managers hijack Alt-drag to move the window.
        // We do the same, except that (for the moment at least) we don't allow
        // the modifier to be configured.
        bool shift = e->modifiers() & Qt::ShiftModifier;
        bool ctrl = e->modifiers() & Qt::ControlModifier;
#if defined(Q_OS_MAC) || defined(Q_OS_WIN)
        bool alt = e->modifiers() & Qt::AltModifier;
#else
        bool alt = ctrl;
#endif

        sci->ButtonDown(pt, clickTime, shift, ctrl, alt);
    }
    else if (e->button() == Qt::MidButton)
    {
        QClipboard *cb = QApplication::clipboard();

        if (cb->supportsSelection())
        {
            int pos = sci->PositionFromLocation(pt);

            sci->sel.Clear();
            sci->SetSelection(pos, pos);

            sci->pasteFromClipboard(QClipboard::Selection);
        }
    }
}

void Clipboard::setText(const QString& text)
{
    QClipboard* clipboard = QApplication::clipboard();

    clipboard->setText(text, QClipboard::Clipboard);
    if (clipboard->supportsSelection()) {
        clipboard->setText(text, QClipboard::Selection);
    }

    if (config()->get("security/clearclipboard").toBool()) {
        int timeout = config()->get("security/clearclipboardtimeout").toInt();
        if (timeout > 0) {
            m_lastCopied = text;
            m_timer->start(timeout * 1000);
        }
    }
}

NS_IMETHODIMP
nsClipboard::SupportsSelectionClipboard(PRBool *_retval)
{
    NS_ENSURE_ARG_POINTER(_retval);

    QClipboard *cb = QApplication::clipboard();
    if (cb->supportsSelection())
    {
        *_retval = PR_TRUE; // we support the selection clipboard 
    }
    else
    {
        *_retval = PR_FALSE;
    }

    return NS_OK;
}

void CoordinateCapture::copy()
{
    QClipboard *myClipboard = QApplication::clipboard();
    //if we are on x11 system put text into selection ready for middle button pasting
    if ( myClipboard->supportsSelection() )
    {
        myClipboard->setText( mpUserCrsEdit->text() + "," + mpCanvasEdit->text(), QClipboard::Selection );
        //QString myMessage = tr("Clipboard contents set to: ");
        //statusBar()->showMessage(myMessage + myClipboard->text(QClipboard::Selection));
    }
    else
    {
        //user has an inferior operating system....
        myClipboard->setText( mpUserCrsEdit->text() + "," + mpCanvasEdit->text(), QClipboard::Clipboard );
        //QString myMessage = tr("Clipboard contents set to: ");
        //statusBar()->showMessage(myMessage + myClipboard->text(QClipboard::Clipboard));
    }
}

void Clipboard::clearClipboard()
{
    QClipboard* clipboard = QApplication::clipboard();

    if (!clipboard) {
        qWarning("Unable to access the clipboard.");
        return;
    }

    if (clipboard->text(QClipboard::Clipboard) == m_lastCopied) {
        clipboard->clear(QClipboard::Clipboard);
    }

    if (clipboard->supportsSelection()
            && (clipboard->text(QClipboard::Selection) == m_lastCopied)) {
        clipboard->clear(QClipboard::Selection);
    }

    m_lastCopied.clear();
}

// The ctor.
QsciScintillaBase::QsciScintillaBase(QWidget *parent)
    : QAbstractScrollArea(parent)
{
    connect(verticalScrollBar(), SIGNAL(valueChanged(int)),
            SLOT(handleVSb(int)));

    connect(horizontalScrollBar(), SIGNAL(valueChanged(int)),
            SLOT(handleHSb(int)));

    setAcceptDrops(true);
    setFocusPolicy(Qt::WheelFocus);
    setAttribute(Qt::WA_KeyCompression);

    viewport()->setBackgroundRole(QPalette::Base);
    viewport()->setMouseTracking(true);
    viewport()->setAttribute(Qt::WA_NoSystemBackground);

    triple_click.setSingleShot(true);

    sci = new ScintillaQt(this);

    curseurs = new QMap<int, Curseur*>;
    lockedLines = new QList<int>;

    SendScintilla(SCI_SETCARETPERIOD, QApplication::cursorFlashTime() / 2);

    // Make sure the lexers are linked in.
    if (!lexersLinked)
    {
        Scintilla_LinkLexers();
        lexersLinked = true;
    }

    QClipboard *cb = QApplication::clipboard();

    if (cb->supportsSelection())
        connect(cb, SIGNAL(selectionChanged()), SLOT(handleSelection()));

    // Add it to the pool.
    poolList.append(this);
}

void db_base::pem2clipboard()
{
	long l;
        const char *p;
	QString msg;
	QClipboard *cb = QApplication::clipboard();

	BIO *bio = BIO_new(BIO_s_mem());
	if (!currentIdx.isValid())
		return;
	pki_base *pki = static_cast<pki_base*>(currentIdx.internalPointer());
	pki->pem(bio);
	openssl_error();
	l = BIO_get_mem_data(bio, &p);
	msg = QString::fromUtf8(p, l);
	BIO_free(bio);
	if (cb->supportsSelection())
		cb->setText(msg, QClipboard::Selection);
	else
		cb->setText(msg);
}