예제 #1
0
void QMacWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoint &offset)
{
    Q_UNUSED(offset);

    // Get a context for the widget.
#ifndef QT_MAC_USE_COCOA
    CGContextRef context;
    CGrafPtr port = GetWindowPort(qt_mac_window_for(widget));
    QDBeginCGContext(port, &context);
#else
    extern CGContextRef qt_mac_graphicsContextFor(QWidget *);
    CGContextRef context = qt_mac_graphicsContextFor(widget);
#endif
    CGContextRetain(context);
    CGContextSaveGState(context);

    // Flip context.
    CGContextTranslateCTM(context, 0, widget->height());
    CGContextScaleCTM(context, 1, -1);

    // Clip to region.
    const QVector<QRect> &rects = rgn.rects();
    for (int i = 0; i < rects.size(); ++i) {
        const QRect &rect = rects.at(i);
        CGContextAddRect(context, CGRectMake(rect.x(), rect.y(), rect.width(), rect.height()));
    }
    CGContextClip(context);

    // Draw the image onto the window.
    const CGRect dest = CGRectMake(0, 0, widget->width(), widget->height());
    const CGImageRef image = d_ptr->device.toMacCGImageRef();
    qt_mac_drawCGImage(context, &dest, image);
    CFRelease(image);

    // Restore context.
    CGContextRestoreGState(context);
#ifndef QT_MAC_USE_COCOA
    QDEndCGContext(port, &context);
#else
    CGContextFlush(context);
#endif
    CGContextRelease(context);
}
void QRasterWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoint &offset)
{
    Q_D(QRasterWindowSurface);

    // Not ready for painting yet, bail out. This can happen in
    // QWidget::create_sys()
    if (!d->image || rgn.rectCount() == 0)
        return;

#ifdef Q_WS_WIN
    QRect br = rgn.boundingRect();

#ifndef Q_WS_WINCE
    if (!qt_widget_private(window())->isOpaque
        && window()->testAttribute(Qt::WA_TranslucentBackground)
        && (qt_widget_private(window())->data.window_flags & Qt::FramelessWindowHint))
    {
        QRect r = window()->frameGeometry();
        QPoint frameOffset = qt_widget_private(window())->frameStrut().topLeft();
        QRect dirtyRect = br.translated(offset + frameOffset);

        SIZE size = {r.width(), r.height()};
        POINT ptDst = {r.x(), r.y()};
        POINT ptSrc = {0, 0};
        BLENDFUNCTION blend = {AC_SRC_OVER, 0, (int)(255.0 * window()->windowOpacity()), Q_AC_SRC_ALPHA};
        RECT dirty = {dirtyRect.x(), dirtyRect.y(),
            dirtyRect.x() + dirtyRect.width(), dirtyRect.y() + dirtyRect.height()};
        Q_UPDATELAYEREDWINDOWINFO info = {sizeof(info), NULL, &ptDst, &size, d->image->hdc, &ptSrc, 0, &blend, Q_ULW_ALPHA, &dirty};
        ptrUpdateLayeredWindowIndirect(window()->internalWinId(), &info);
    } else
#endif
    {
        QPoint wOffset = qt_qwidget_data(widget)->wrect.topLeft();

        HDC widget_dc = widget->getDC();

        QRect wbr = br.translated(-wOffset);
        BitBlt(widget_dc, wbr.x(), wbr.y(), wbr.width(), wbr.height(),
               d->image->hdc, br.x() + offset.x(), br.y() + offset.y(), SRCCOPY);
        widget->releaseDC(widget_dc);
    }

#ifndef QT_NO_DEBUG
    static bool flush = !qgetenv("QT_FLUSH_WINDOWSURFACE").isEmpty();
    if (flush) {
        SelectObject(qt_win_display_dc(), GetStockObject(BLACK_BRUSH));
        Rectangle(qt_win_display_dc(), 0, 0, d->image->width() + 2, d->image->height() + 2);
        BitBlt(qt_win_display_dc(), 1, 1, d->image->width(), d->image->height(),
               d->image->hdc, 0, 0, SRCCOPY);
    }
#endif

#endif

#ifdef Q_WS_X11
    extern void *qt_getClipRects(const QRegion &r, int &num); // in qpaintengine_x11.cpp
    extern QWidgetData* qt_widget_data(QWidget *);
    QPoint wOffset = qt_qwidget_data(widget)->wrect.topLeft();

    if (widget->window() != window()) {
        XFreeGC(X11->display, d_ptr->gc);
        d_ptr->gc = XCreateGC(X11->display, widget->handle(), 0, 0);
    }

    QRegion wrgn(rgn);
    if (!wOffset.isNull())
        wrgn.translate(-wOffset);
    QRect wbr = wrgn.boundingRect();

    if (wrgn.rectCount() != 1) {
        int num;
        XRectangle *rects = (XRectangle *)qt_getClipRects(wrgn, num);
        XSetClipRectangles(X11->display, d_ptr->gc, 0, 0, rects, num, YXBanded);
    }

    QRect br = rgn.boundingRect().translated(offset);
#ifndef QT_NO_MITSHM
    if (d_ptr->image->xshmpm) {
        XCopyArea(X11->display, d_ptr->image->xshmpm, widget->handle(), d_ptr->gc,
                  br.x(), br.y(), br.width(), br.height(), wbr.x(), wbr.y());
        XSync(X11->display, False);
    } else if (d_ptr->image->xshmimg) {
        const QImage &src = d->image->image;
        br = br.intersected(src.rect());
        XShmPutImage(X11->display, widget->handle(), d_ptr->gc, d_ptr->image->xshmimg,
                     br.x(), br.y(), wbr.x(), wbr.y(), br.width(), br.height(), False);
        XSync(X11->display, False);
    } else
#endif
    {
        const QImage &src = d->image->image;
        br = br.intersected(src.rect());
        if (src.format() != QImage::Format_RGB32 || widget->x11Info().depth() < 24) {
            Q_ASSERT(src.depth() >= 16);
            const QImage sub_src(src.scanLine(br.y()) + br.x() * (uint(src.depth()) / 8),
                                 br.width(), br.height(), src.bytesPerLine(), src.format());
            QX11PixmapData *data = new QX11PixmapData(QPixmapData::PixmapType);
            data->xinfo = widget->x11Info();
            data->fromImage(sub_src, Qt::NoOpaqueDetection);
            QPixmap pm = QPixmap(data);
            XCopyArea(X11->display, pm.handle(), widget->handle(), d_ptr->gc, 0 , 0 , br.width(), br.height(), wbr.x(), wbr.y());
        } else {
            // qpaintengine_x11.cpp
            extern void qt_x11_drawImage(const QRect &rect, const QPoint &pos, const QImage &image, Drawable hd, GC gc, Display *dpy, Visual *visual, int depth);
            qt_x11_drawImage(br, wbr.topLeft(), src, widget->handle(), d_ptr->gc, X11->display, (Visual *)widget->x11Info().visual(), widget->x11Info().depth());
        }
    }

    if (wrgn.rectCount() != 1)
        XSetClipMask(X11->display, d_ptr->gc, XNone);
#endif // FALCON

#ifdef Q_WS_MAC

//     qDebug() << "Flushing" << widget << rgn << offset;

//     d->image->image.save("flush.png");

    Q_UNUSED(offset);
    // Get a context for the widget.
#ifndef QT_MAC_USE_COCOA
    CGContextRef context;
    CGrafPtr port = GetWindowPort(qt_mac_window_for(widget));
    QDBeginCGContext(port, &context);
#else
    extern CGContextRef qt_mac_graphicsContextFor(QWidget *);
    CGContextRef context = qt_mac_graphicsContextFor(widget);
#endif
    CGContextSaveGState(context);

    // Flip context.
    CGContextTranslateCTM(context, 0, widget->height());
    CGContextScaleCTM(context, 1, -1);

    // Clip to region.
    const QVector<QRect> &rects = rgn.rects();
    for (int i = 0; i < rects.size(); ++i) {
        const QRect &rect = rects.at(i);
        CGContextAddRect(context, CGRectMake(rect.x(), rect.y(), rect.width(), rect.height()));
    }
    CGContextClip(context);

    QRect r = rgn.boundingRect();
    const CGRect area = CGRectMake(r.x(), r.y(), r.width(), r.height());
    CGImageRef image = CGBitmapContextCreateImage(d->image->cg);
    CGImageRef subImage = CGImageCreateWithImageInRect(image, area);

    qt_mac_drawCGImage(context, &area, subImage);
    CGImageRelease(subImage);
    CGImageRelease(image);

//     CGSize size = { d->image->image.width(), d->image->image.height() };
//     CGLayerRef layer = CGLayerCreateWithContext(d->image->cg, size, 0);
//     CGPoint pt = { 0, 0 };
//     CGContextDrawLayerAtPoint(context, pt, layer);
//     CGLayerRelease(layer);

    // Restore context.
    CGContextRestoreGState(context);
#ifndef QT_MAC_USE_COCOA
    QDEndCGContext(port, &context);
#endif
#endif // Q_WS_MAC

#ifdef Q_OS_SYMBIAN
    Q_UNUSED(widget);
    Q_UNUSED(rgn);
    Q_UNUSED(offset);
#endif
}