C++ QBitmap::setMask方法代码示例

ListBoxDevice::ListBoxDevice(const QPixmap & pixmap, const QString & title, const QString & url, const QString & name, const QString & mountPoint, bool mounted, bool ejectable, bool removable, int id) : ListBoxLink(pixmap, title, url), name_(name), mountPoint_(mountPoint), mounted_(mounted), ejectable_(ejectable), removable_(removable),id_(id)
{
   if (!eject.mask())
      eject.setMask(eject);
   if (!locked.mask())
      locked.setMask(locked);
}

void KarbonGradientWidget::paintColorStop(QPainter& p, int x, const QColor& color)
{
    QBitmap bitmap = QBitmap::fromData(QSize(colorStop_width, colorStop_height), colorStop_bits);
    bitmap.setMask(bitmap);
    p.setPen(color);
    p.drawPixmap(x - 4, 1, bitmap);

    bitmap = QBitmap::fromData(QSize(colorStopBorder_width, colorStopBorder_height), colorStopBorder_bits);
    bitmap.setMask(bitmap);
    p.setPen(Qt::black);
    p.drawPixmap(x - 5, 1, bitmap);
}

void KarbonGradientWidget::paintMidPoint(QPainter& p, int x)
{
    QBitmap bitmap = QBitmap::fromData(QSize(midPoint_width, midPoint_height), midPoint_bits);
    bitmap.setMask(bitmap);
    p.setPen(Qt::black);
    p.drawPixmap(x - 3, 1, bitmap);
}

void KstViewLabel::paintSelf(KstPainter& p, const QRegion& bounds) {
  p.save();
  if (p.type() == KstPainter::P_PRINT || p.type() == KstPainter::P_EXPORT) {
    int absFontSizeOld = _absFontSize;

    QRect cr(contentsRectForPainter(p));
    cr.setSize(sizeForText(_parent->geometry()));
    setContentsRectForPainter(p, cr);
    KstBorderedViewObject::paintSelf(p, bounds);

    p.translate(cr.left(), cr.top());
    if (!_transparent) {
      p.fillRect(0, 0, cr.width(), cr.height(), backgroundColor());
    }
    drawToPainter(_parsed, p);

    _absFontSize = absFontSizeOld;
  } else {
    if (p.makingMask()) {
      KstBorderedViewObject::paintSelf(p, bounds);
      p.setRasterOp(Qt::SetROP);
      const QRect cr(contentsRect());
      // slow but preserves antialiasing...
      QBitmap bm = _backBuffer.buffer().createHeuristicMask(false);
      bm.setMask(bm);
      p.drawPixmap(cr.left(), cr.top(), bm, 0, 0, cr.width(), cr.height());
    } else {
      const QRegion clip(clipRegion());
      KstBorderedViewObject::paintSelf(p, bounds);
      p.setClipRegion(bounds & clip);
      _backBuffer.paintInto(p, contentsRect());
    }
  }
  p.restore();
}

/*!
  Returns a pixmap with size \a s and mode \a m, generating one if
  needed. Generated pixmaps are cached.
*/
QPixmap QIconSet::pixmap( Size s, Mode m ) const
{
    if ( !d ) {
	QPixmap r;
	return r;
    }

    QImage i;
    QIconSetPrivate * p = ((QIconSet *)this)->d;
    QPixmap * pm = 0;
    if ( s == Large ) {
	switch( m ) {
	case Normal:
	    if ( !p->large.pm ) {
		ASSERT( p->small.pm );
		i = p->small.pm->convertToImage();
		i = i.smoothScale( i.width() * 3 / 2, i.height() * 3 / 2 );
		p->large.pm = new QPixmap;
		p->large.generated = TRUE;
		p->large.pm->convertFromImage( i );
		if ( !p->large.pm->mask() ) {
		    i = i.createHeuristicMask();
		    QBitmap tmp;
		    tmp.convertFromImage( i, Qt::MonoOnly + Qt::ThresholdDither );
		    p->large.pm->setMask( tmp );
		}
	    }
	    pm = p->large.pm;
	    break;
	case Active:
	    if ( !p->largeActive.pm ) {
		p->largeActive.pm = new QPixmap( pixmap( Large, Normal ) );
		p->largeActive.generated = TRUE;
	    }
	    pm = p->largeActive.pm;
	    break;
	case Disabled:
	    if ( !p->largeDisabled.pm ) {
#if defined(_WS_QWS_) && !defined(QT_NO_DEPTH_32)
		p->largeDisabled.pm = newDisablePixmap(pixmap(Large,Normal));
#else
		QBitmap tmp;
		if ( p->large.generated && !p->smallDisabled.generated &&
		     p->smallDisabled.pm && !p->smallDisabled.pm->isNull() ) {
		    // if there's a hand-drawn disabled small image,
		    // but the normal big one is generated, use the
		    // hand-drawn one to generate this one.
		    i = p->smallDisabled.pm->convertToImage();
		    i = i.smoothScale( i.width() * 3 / 2, i.height() * 3 / 2 );
		    p->largeDisabled.pm = new QPixmap;
		    p->largeDisabled.pm->convertFromImage( i );
		    if ( !p->largeDisabled.pm->mask() ) {
			i = i.createHeuristicMask();
			tmp.convertFromImage( i, Qt::MonoOnly + Qt::ThresholdDither );
		    }
		} else {
		    if (pixmap( Large, Normal).mask())
			tmp = *pixmap( Large, Normal).mask();
		    else {
			QPixmap conv = pixmap( Large, Normal );
			if ( !conv.isNull() ) {
			    i = conv.convertToImage();
			    i = i.createHeuristicMask();
			    tmp.convertFromImage( i, Qt::MonoOnly + Qt::ThresholdDither );
			}
		    }
		    p->largeDisabled.pm
			= new QPixmap( p->large.pm->width()+1,
				       p->large.pm->height()+1);
		    QColorGroup dis( QApplication::palette().disabled() );
		    p->largeDisabled.pm->fill( dis.background() );
		    QPainter painter( p->largeDisabled.pm );
		    painter.setPen( dis.base() );
		    painter.drawPixmap( 1, 1, tmp );
		    painter.setPen( dis.foreground() );
		    painter.drawPixmap( 0, 0, tmp );
		}
		if ( !p->largeDisabled.pm->mask() ) {
		    if ( !tmp.mask() )
			tmp.setMask( tmp );
		    QBitmap mask( d->largeDisabled.pm->size() );
		    mask.fill( Qt::color0 );
		    QPainter painter( &mask );
		    painter.drawPixmap( 0, 0, tmp );
		    painter.drawPixmap( 1, 1, tmp );
		    painter.end();
		    p->largeDisabled.pm->setMask( mask );
		}
#endif
		p->largeDisabled.generated = TRUE;
	    }
	    pm = p->largeDisabled.pm;
	    break;
	}
    } else {
	switch( m ) {
//.........这里部分代码省略.........