예제 #1
0
void RenderSVGText::paint(PaintInfo& paintInfo, const LayoutPoint&)
{
    if (paintInfo.context->paintingDisabled())
        return;

    if (paintInfo.phase != PaintPhaseForeground
     && paintInfo.phase != PaintPhaseSelection)
         return;

    PaintInfo blockInfo(paintInfo);
    GraphicsContextStateSaver stateSaver(*blockInfo.context, false);
    const AffineTransform& localTransform = localToParentTransform();
    if (!localTransform.isIdentity()) {
        stateSaver.save();
        blockInfo.applyTransform(localTransform, false);
    }
    RenderBlock::paint(blockInfo, LayoutPoint());

    // Paint the outlines, if any
    if (paintInfo.phase == PaintPhaseForeground) {
        blockInfo.phase = PaintPhaseSelfOutline;
        RenderBlock::paint(blockInfo, LayoutPoint());
    }
}
예제 #2
0
void EllipsisBox::paintSelection(GraphicsContext* context, const FloatPoint& boxOrigin, RenderStyle* style, const Font& font)
{
    Color textColor = m_renderer->resolveColor(style, CSSPropertyColor);
    Color c = m_renderer->selectionBackgroundColor();
    if (!c.isValid() || !c.alpha())
        return;

    // If the text color ends up being the same as the selection background, invert the selection
    // background.
    if (textColor == c)
        c = Color(0xff - c.red(), 0xff - c.green(), 0xff - c.blue());

    GraphicsContextStateSaver stateSaver(*context);
    LayoutUnit selectionBottom = root()->selectionBottom();
    LayoutUnit top = root()->selectionTop();
    LayoutUnit h = root()->selectionHeight();
    const int deltaY = roundToInt(renderer()->style()->isFlippedLinesWritingMode() ? selectionBottom - logicalBottom() : logicalTop() - top);
    const FloatPoint localOrigin(boxOrigin.x(), boxOrigin.y() - deltaY);
    FloatRect clipRect(localOrigin, FloatSize(m_logicalWidth, h));
    alignSelectionRectToDevicePixels(clipRect);
    context->clip(clipRect);
    // FIXME: Why is this always LTR? Fix by passing correct text run flags below.
    context->drawHighlightForText(font, RenderBlockFlow::constructTextRun(renderer(), font, m_str, style, TextRun::AllowTrailingExpansion), localOrigin, h, c);
}
bool RenderThemeChromiumDefault::paintCheckbox(RenderObject* o, const PaintInfo& i, const IntRect& rect)
{
    if (i.context->paintingDisabled())
        return false;
    blink::WebThemeEngine::ExtraParams extraParams;
    blink::WebCanvas* canvas = i.context->canvas();
    extraParams.button.checked = isChecked(o);
    extraParams.button.indeterminate = isIndeterminate(o);

    float zoomLevel = o->style()->effectiveZoom();
    GraphicsContextStateSaver stateSaver(*i.context, false);
    IntRect unzoomedRect = rect;
    if (zoomLevel != 1) {
        stateSaver.save();
        unzoomedRect.setWidth(unzoomedRect.width() / zoomLevel);
        unzoomedRect.setHeight(unzoomedRect.height() / zoomLevel);
        i.context->translate(unzoomedRect.x(), unzoomedRect.y());
        i.context->scale(zoomLevel, zoomLevel);
        i.context->translate(-unzoomedRect.x(), -unzoomedRect.y());
    }

    blink::Platform::current()->themeEngine()->paint(canvas, blink::WebThemeEngine::PartCheckbox, getWebThemeState(this, o), blink::WebRect(unzoomedRect), &extraParams);
    return false;
}
static void drawCrossfadeSubimage(GraphicsContext* context, Image* image, CompositeOperator operation, float opacity, IntSize targetSize)
{
    IntSize imageSize = image->size();

    // SVGImage resets the opacity when painting, so we have to use transparency layers to accurately paint one at a given opacity.
    bool useTransparencyLayer = image->isSVGImage();

    GraphicsContextStateSaver stateSaver(*context);

    context->setCompositeOperation(operation);

    if (useTransparencyLayer)
        context->beginTransparencyLayer(opacity);
    else
        context->setAlpha(opacity);

    if (targetSize != imageSize)
        context->scale(FloatSize(static_cast<float>(targetSize.width()) / imageSize.width(),
            static_cast<float>(targetSize.height()) / imageSize.height()));
    context->drawImage(image, ColorSpaceDeviceRGB, IntPoint());

    if (useTransparencyLayer)
        context->endTransparencyLayer();
}
예제 #5
0
void RenderSVGImage::paint(PaintInfo& paintInfo, const LayoutPoint&)
{
    ANNOTATE_GRAPHICS_CONTEXT(paintInfo, this);

    if (paintInfo.phase != PaintPhaseForeground
        || style()->visibility() == HIDDEN
        || !m_imageResource->hasImage())
        return;

    FloatRect boundingBox = paintInvalidationRectInLocalCoordinates();
    if (!SVGRenderSupport::paintInfoIntersectsPaintInvalidationRect(boundingBox, m_localTransform, paintInfo))
        return;

    PaintInfo childPaintInfo(paintInfo);
    GraphicsContextStateSaver stateSaver(*childPaintInfo.context, false);

    if (!m_localTransform.isIdentity()) {
        stateSaver.save();
        childPaintInfo.applyTransform(m_localTransform, false);
    }
    if (!m_objectBoundingBox.isEmpty()) {
        // SVGRenderingContext may taint the state - make sure we're always saving.
        SVGRenderingContext renderingContext(this, childPaintInfo, stateSaver.saved() ?
            SVGRenderingContext::DontSaveGraphicsContext : SVGRenderingContext::SaveGraphicsContext);

        if (renderingContext.isRenderingPrepared()) {
            if (style()->svgStyle().bufferedRendering() == BR_STATIC && renderingContext.bufferForeground(m_bufferedForeground))
                return;

            paintForeground(childPaintInfo);
        }
    }

    if (style()->outlineWidth())
        paintOutline(childPaintInfo, IntRect(boundingBox));
}
예제 #6
0
void CrossfadeGeneratedImage::drawCrossfade(GraphicsContext* context)
{
    float inversePercentage = 1 - m_percentage;

    IntSize fromImageSize = m_fromImage->size();
    IntSize toImageSize = m_toImage->size();

    // Draw nothing if either of the images hasn't loaded yet.
    if (m_fromImage == Image::nullImage() || m_toImage == Image::nullImage())
        return;

    GraphicsContextStateSaver stateSaver(*context);

    context->clip(IntRect(IntPoint(), m_crossfadeSize));
    context->beginTransparencyLayer(1);
    
    // Draw the image we're fading away from.
    context->save();
    if (m_crossfadeSize != fromImageSize)
        context->scale(FloatSize(static_cast<float>(m_crossfadeSize.width()) / fromImageSize.width(),
                                 static_cast<float>(m_crossfadeSize.height()) / fromImageSize.height()));
    context->setAlpha(inversePercentage);
    context->drawImage(m_fromImage, ColorSpaceDeviceRGB, IntPoint());
    context->restore();

    // Draw the image we're fading towards.
    context->save();
    if (m_crossfadeSize != toImageSize)
        context->scale(FloatSize(static_cast<float>(m_crossfadeSize.width()) / toImageSize.width(),
                                 static_cast<float>(m_crossfadeSize.height()) / toImageSize.height()));
    context->setAlpha(m_percentage);
    context->drawImage(m_toImage, ColorSpaceDeviceRGB, IntPoint(), CompositePlusLighter);
    context->restore();

    context->endTransparencyLayer();
}
예제 #7
0
void InlineFlowBoxPainter::paintMask(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
    if (m_inlineFlowBox.lineLayoutItem().style()->visibility() != VISIBLE || paintInfo.phase != PaintPhaseMask)
        return;

    LayoutRect frameRect = frameRectClampedToLineTopAndBottomIfNeeded();

    // Move x/y to our coordinates.
    LayoutRect localRect(frameRect);
    m_inlineFlowBox.flipForWritingMode(localRect);
    LayoutPoint adjustedPaintOffset = paintOffset + localRect.location();

    const NinePieceImage& maskNinePieceImage = m_inlineFlowBox.lineLayoutItem().style()->maskBoxImage();
    StyleImage* maskBoxImage = m_inlineFlowBox.lineLayoutItem().style()->maskBoxImage().image();

    // Figure out if we need to push a transparency layer to render our mask.
    bool pushTransparencyLayer = false;
    bool compositedMask = m_inlineFlowBox.lineLayoutItem().hasLayer() && m_inlineFlowBox.boxModelObject().layer()->hasCompositedMask();
    bool flattenCompositingLayers = paintInfo.globalPaintFlags() & GlobalPaintFlattenCompositingLayers;
    SkXfermode::Mode compositeOp = SkXfermode::kSrcOver_Mode;
    if (!compositedMask || flattenCompositingLayers) {
        if ((maskBoxImage && m_inlineFlowBox.lineLayoutItem().style()->maskLayers().hasImage()) || m_inlineFlowBox.lineLayoutItem().style()->maskLayers().next()) {
            pushTransparencyLayer = true;
            paintInfo.context.beginLayer(1.0f, SkXfermode::kDstIn_Mode);
        } else {
            // TODO(fmalita): passing a dst-in xfer mode down to paintFillLayers/paintNinePieceImage
            //   seems dangerous: it is only correct if applied atomically (single draw call). While
            //   the heuristic above presumably ensures that is the case, this approach seems super
            //   fragile. We should investigate dropping this optimization in favour of the more
            //   robust layer branch above.
            compositeOp = SkXfermode::kDstIn_Mode;
        }
    }

    LayoutRect paintRect = LayoutRect(adjustedPaintOffset, frameRect.size());
    paintFillLayers(paintInfo, Color::transparent, m_inlineFlowBox.lineLayoutItem().style()->maskLayers(), paintRect, compositeOp);

    bool hasBoxImage = maskBoxImage && maskBoxImage->canRender();
    if (!hasBoxImage || !maskBoxImage->isLoaded()) {
        if (pushTransparencyLayer)
            paintInfo.context.endLayer();
        return; // Don't paint anything while we wait for the image to load.
    }

    LayoutBoxModelObject* boxModel = toLayoutBoxModelObject(LineLayoutAPIShim::layoutObjectFrom(m_inlineFlowBox.boxModelObject()));
    // The simple case is where we are the only box for this object. In those
    // cases only a single call to draw is required.
    if (!m_inlineFlowBox.prevLineBox() && !m_inlineFlowBox.nextLineBox()) {
        BoxPainter::paintNinePieceImage(*boxModel, paintInfo.context, paintRect, m_inlineFlowBox.lineLayoutItem().styleRef(), maskNinePieceImage, compositeOp);
    } else {
        // We have a mask image that spans multiple lines.
        // FIXME: What the heck do we do with RTL here? The math we're using is obviously not right,
        // but it isn't even clear how this should work at all.
        LayoutRect imageStripPaintRect = paintRectForImageStrip(adjustedPaintOffset, frameRect.size(), LTR);
        FloatRect clipRect(clipRectForNinePieceImageStrip(m_inlineFlowBox, maskNinePieceImage, paintRect));
        GraphicsContextStateSaver stateSaver(paintInfo.context);
        // TODO(chrishtr): this should be pixel-snapped.
        paintInfo.context.clip(clipRect);
        BoxPainter::paintNinePieceImage(*boxModel, paintInfo.context, imageStripPaintRect, m_inlineFlowBox.lineLayoutItem().styleRef(), maskNinePieceImage, compositeOp);
    }

    if (pushTransparencyLayer)
        paintInfo.context.endLayer();
}
예제 #8
0
void TextPainter::paintText()
{
    ASSERT(m_savedDrawingStateForMask.m_textPaintStyle);
    ASSERT(m_savedDrawingStateForMask.m_selectionPaintStyle);
    
    FloatPoint boxOrigin = m_boxRect.location();

    if (!m_paintSelectedTextOnly) {
        // For stroked painting, we have to change the text drawing mode. It's probably dangerous to leave that mutated as a side
        // effect, so only when we know we're stroking, do a save/restore.
        GraphicsContextStateSaver stateSaver(*m_savedDrawingStateForMask.m_context, m_savedDrawingStateForMask.m_textPaintStyle->strokeWidth > 0);

        updateGraphicsContext(*m_savedDrawingStateForMask.m_context, *m_savedDrawingStateForMask.m_textPaintStyle);
        if (!m_paintSelectedTextSeparately || m_endPositionInTextRun <= m_startPositionInTextRun) {
            // FIXME: Truncate right-to-left text correctly.
            paintTextWithShadows(m_savedDrawingStateForMask.m_context, m_font, m_textRun, nullAtom, 0, 0, m_length, m_length, m_textOrigin, m_boxRect, m_savedDrawingStateForMask.m_textShadow, m_savedDrawingStateForMask.m_textPaintStyle->strokeWidth > 0, m_textBoxIsHorizontal);
        } else
            paintTextWithShadows(m_savedDrawingStateForMask.m_context, m_font, m_textRun, nullAtom, 0, m_endPositionInTextRun, m_startPositionInTextRun, m_length, m_textOrigin, m_boxRect, m_savedDrawingStateForMask.m_textShadow, m_savedDrawingStateForMask.m_textPaintStyle->strokeWidth > 0, m_textBoxIsHorizontal);

        if (!m_emphasisMark.isEmpty()) {
            updateGraphicsContext(*m_savedDrawingStateForMask.m_context, *m_savedDrawingStateForMask.m_textPaintStyle, UseEmphasisMarkColor);

            DEPRECATED_DEFINE_STATIC_LOCAL(TextRun, objectReplacementCharacterTextRun, (&objectReplacementCharacter, 1));
            TextRun& emphasisMarkTextRun = m_combinedText ? objectReplacementCharacterTextRun : m_textRun;
            FloatPoint emphasisMarkTextOrigin = m_combinedText ? FloatPoint(boxOrigin.x() + m_boxRect.width() / 2, boxOrigin.y() + m_font.fontMetrics().ascent()) : m_textOrigin;
            if (m_combinedText)
                m_savedDrawingStateForMask.m_context->concatCTM(rotation(m_boxRect, Clockwise));

            if (!m_paintSelectedTextSeparately || m_endPositionInTextRun <= m_startPositionInTextRun) {
                // FIXME: Truncate right-to-left text correctly.
                paintTextWithShadows(m_savedDrawingStateForMask.m_context, m_combinedText ? m_combinedText->originalFont() : m_font, emphasisMarkTextRun, m_emphasisMark, m_emphasisMarkOffset, 0, m_length, m_length, emphasisMarkTextOrigin, m_boxRect, m_savedDrawingStateForMask.m_textShadow, m_savedDrawingStateForMask.m_textPaintStyle->strokeWidth > 0, m_textBoxIsHorizontal);
            } else
                paintTextWithShadows(m_savedDrawingStateForMask.m_context, m_combinedText ? m_combinedText->originalFont() : m_font, emphasisMarkTextRun, m_emphasisMark, m_emphasisMarkOffset, m_endPositionInTextRun, m_startPositionInTextRun, m_length, emphasisMarkTextOrigin, m_boxRect, m_savedDrawingStateForMask.m_textShadow, m_savedDrawingStateForMask.m_textPaintStyle->strokeWidth > 0, m_textBoxIsHorizontal);

            if (m_combinedText)
                m_savedDrawingStateForMask.m_context->concatCTM(rotation(m_boxRect, Counterclockwise));
        }
    }

    if ((m_paintSelectedTextOnly || m_paintSelectedTextSeparately) && m_startPositionInTextRun < m_endPositionInTextRun) {
        // paint only the text that is selected
        GraphicsContextStateSaver stateSaver(*m_savedDrawingStateForMask.m_context, m_savedDrawingStateForMask.m_selectionPaintStyle->strokeWidth > 0);

        updateGraphicsContext(*m_savedDrawingStateForMask.m_context, *m_savedDrawingStateForMask.m_selectionPaintStyle);
        paintTextWithShadows(m_savedDrawingStateForMask.m_context, m_font, m_textRun, nullAtom, 0, m_startPositionInTextRun, m_endPositionInTextRun, m_length, m_textOrigin, m_boxRect, m_savedDrawingStateForMask.m_selectionShadow, m_savedDrawingStateForMask.m_selectionPaintStyle->strokeWidth > 0, m_textBoxIsHorizontal);
        if (!m_emphasisMark.isEmpty()) {
            updateGraphicsContext(*m_savedDrawingStateForMask.m_context, *m_savedDrawingStateForMask.m_selectionPaintStyle, UseEmphasisMarkColor);

            DEPRECATED_DEFINE_STATIC_LOCAL(TextRun, objectReplacementCharacterTextRun, (&objectReplacementCharacter, 1));
            TextRun& emphasisMarkTextRun = m_combinedText ? objectReplacementCharacterTextRun : m_textRun;
            FloatPoint emphasisMarkTextOrigin = m_combinedText ? FloatPoint(boxOrigin.x() + m_boxRect.width() / 2, boxOrigin.y() + m_font.fontMetrics().ascent()) : m_textOrigin;
            if (m_combinedText)
                m_savedDrawingStateForMask.m_context->concatCTM(rotation(m_boxRect, Clockwise));

            paintTextWithShadows(m_savedDrawingStateForMask.m_context, m_combinedText ? m_combinedText->originalFont() : m_font, emphasisMarkTextRun, m_emphasisMark, m_emphasisMarkOffset, m_startPositionInTextRun, m_endPositionInTextRun, m_length, emphasisMarkTextOrigin, m_boxRect, m_savedDrawingStateForMask.m_selectionShadow, m_savedDrawingStateForMask.m_selectionPaintStyle->strokeWidth > 0, m_textBoxIsHorizontal);

            if (m_combinedText)
                m_savedDrawingStateForMask.m_context->concatCTM(rotation(m_boxRect, Counterclockwise));
        }
    }
}
void SVGInlineTextBoxPainter::paintTextFragments(const PaintInfo& paintInfo, LayoutObject& parentLayoutObject)
{
    const ComputedStyle& style = parentLayoutObject.styleRef();
    const SVGComputedStyle& svgStyle = style.svgStyle();

    bool hasFill = svgStyle.hasFill();
    bool hasVisibleStroke = svgStyle.hasVisibleStroke();

    const ComputedStyle* selectionStyle = &style;
    bool shouldPaintSelection = this->shouldPaintSelection();
    if (shouldPaintSelection) {
        selectionStyle = parentLayoutObject.getCachedPseudoStyle(SELECTION);
        if (selectionStyle) {
            const SVGComputedStyle& svgSelectionStyle = selectionStyle->svgStyle();

            if (!hasFill)
                hasFill = svgSelectionStyle.hasFill();
            if (!hasVisibleStroke)
                hasVisibleStroke = svgSelectionStyle.hasVisibleStroke();
        } else {
            selectionStyle = &style;
        }
    }

    if (paintInfo.isRenderingClipPathAsMaskImage()) {
        hasFill = true;
        hasVisibleStroke = false;
    }

    AffineTransform fragmentTransform;
    unsigned textFragmentsSize = m_svgInlineTextBox.textFragments().size();
    for (unsigned i = 0; i < textFragmentsSize; ++i) {
        SVGTextFragment& fragment = m_svgInlineTextBox.textFragments().at(i);

        GraphicsContextStateSaver stateSaver(*paintInfo.context, false);
        fragment.buildFragmentTransform(fragmentTransform);
        if (!fragmentTransform.isIdentity()) {
            stateSaver.save();
            paintInfo.context->concatCTM(fragmentTransform);
        }

        // Spec: All text decorations except line-through should be drawn before the text is filled and stroked; thus, the text is rendered on top of these decorations.
        unsigned decorations = style.textDecorationsInEffect();
        if (decorations & TextDecorationUnderline)
            paintDecoration(paintInfo, TextDecorationUnderline, fragment);
        if (decorations & TextDecorationOverline)
            paintDecoration(paintInfo, TextDecorationOverline, fragment);

        for (int i = 0; i < 3; i++) {
            switch (svgStyle.paintOrderType(i)) {
            case PT_FILL:
                if (hasFill)
                    paintText(paintInfo, style, *selectionStyle, fragment, ApplyToFillMode, shouldPaintSelection);
                break;
            case PT_STROKE:
                if (hasVisibleStroke)
                    paintText(paintInfo, style, *selectionStyle, fragment, ApplyToStrokeMode, shouldPaintSelection);
                break;
            case PT_MARKERS:
                // Markers don't apply to text
                break;
            default:
                ASSERT_NOT_REACHED();
                break;
            }
        }

        // Spec: Line-through should be drawn after the text is filled and stroked; thus, the line-through is rendered on top of the text.
        if (decorations & TextDecorationLineThrough)
            paintDecoration(paintInfo, TextDecorationLineThrough, fragment);
    }
}
예제 #10
0
bool RenderMediaControls::paintMediaControlsPart(MediaControlElementType part, const RenderObject& o, const PaintInfo& paintInfo, const IntRect& r)
{
    GraphicsContextStateSaver stateSaver(*paintInfo.context);

    switch (part) {
    case MediaEnterFullscreenButton:
    case MediaExitFullscreenButton:
        if (MediaControlFullscreenButtonElement* btn = static_cast<MediaControlFullscreenButtonElement*>(o.node())) {
            bool enterButton = btn->displayType() == MediaEnterFullscreenButton;
            wkDrawMediaUIPart(enterButton ? WKMediaUIPartFullscreenButton : WKMediaUIPartExitFullscreenButton, paintInfo.context->platformContext(), r, determineState(o));
        }
        break;
    case MediaShowClosedCaptionsButton:
    case MediaHideClosedCaptionsButton:
        if (MediaControlToggleClosedCaptionsButtonElement* btn = static_cast<MediaControlToggleClosedCaptionsButtonElement*>(o.node())) {
            bool captionsVisible = btn->displayType() == MediaHideClosedCaptionsButton;
            wkDrawMediaUIPart(captionsVisible ? WKMediaUIPartHideClosedCaptionsButton : WKMediaUIPartShowClosedCaptionsButton, paintInfo.context->platformContext(), r, determineState(o));
        }
        break;
    case MediaMuteButton:
    case MediaUnMuteButton:
        if (MediaControlMuteButtonElement* btn = static_cast<MediaControlMuteButtonElement*>(o.node())) {
            bool audioEnabled = btn->displayType() == MediaMuteButton;
            wkDrawMediaUIPart(audioEnabled ? WKMediaUIPartMuteButton : WKMediaUIPartUnMuteButton, paintInfo.context->platformContext(), r, determineState(o));
        }
        break;
    case MediaPauseButton:
    case MediaPlayButton:
        if (MediaControlPlayButtonElement* btn = static_cast<MediaControlPlayButtonElement*>(o.node())) {
            bool canPlay = btn->displayType() == MediaPlayButton;
            wkDrawMediaUIPart(canPlay ? WKMediaUIPartPlayButton : WKMediaUIPartPauseButton, paintInfo.context->platformContext(), r, determineState(o));
        }
        break;
    case MediaRewindButton:
        wkDrawMediaUIPart(WKMediaUIPartRewindButton, paintInfo.context->platformContext(), r, determineState(o));
        break;
    case MediaReturnToRealtimeButton:
        wkDrawMediaUIPart(WKMediaUIPartSeekToRealtimeButton, paintInfo.context->platformContext(), r, determineState(o));
        break;
    case MediaSeekBackButton:
        wkDrawMediaUIPart(WKMediaUIPartSeekBackButton, paintInfo.context->platformContext(), r, determineState(o));
        break;
    case MediaSeekForwardButton:
        wkDrawMediaUIPart(WKMediaUIPartSeekForwardButton, paintInfo.context->platformContext(), r, determineState(o));
        break;
    case MediaSlider: {
        if (HTMLMediaElement* mediaElement = parentMediaElement(o)) {
            FloatRect unzoomedRect = getUnzoomedRectAndAdjustCurrentContext(o, paintInfo, r);
            wkDrawMediaSliderTrack(paintInfo.context->platformContext(), unzoomedRect, mediaElement->percentLoaded() * mediaElement->duration(), mediaElement->currentTime(), mediaElement->duration(), determineState(o));
        }
        break;
    }
    case MediaSliderThumb:
        wkDrawMediaUIPart(WKMediaUIPartTimelineSliderThumb, paintInfo.context->platformContext(), r, determineState(o));
        break;
    case MediaVolumeSliderContainer:
        wkDrawMediaUIPart(WKMediaUIPartVolumeSliderContainer, paintInfo.context->platformContext(), r, determineState(o));
        break;
    case MediaVolumeSlider:
        wkDrawMediaUIPart(WKMediaUIPartVolumeSlider, paintInfo.context->platformContext(), r, determineState(o));
        break;
    case MediaVolumeSliderThumb:
        wkDrawMediaUIPart(WKMediaUIPartVolumeSliderThumb, paintInfo.context->platformContext(), r, determineState(o));
        break;
    case MediaFullScreenVolumeSlider:
        wkDrawMediaUIPart(WKMediaUIPartFullScreenVolumeSlider, paintInfo.context->platformContext(), r, determineState(o));
        break;
    case MediaFullScreenVolumeSliderThumb:
        wkDrawMediaUIPart(WKMediaUIPartFullScreenVolumeSliderThumb, paintInfo.context->platformContext(), r, determineState(o));
        break;
    case MediaTimelineContainer:
        wkDrawMediaUIPart(WKMediaUIPartBackground, paintInfo.context->platformContext(), r, determineState(o));
        break;
    case MediaCurrentTimeDisplay:
        ASSERT_NOT_REACHED();
        break;
    case MediaTimeRemainingDisplay:
        ASSERT_NOT_REACHED();
        break;
    case MediaControlsPanel:
        ASSERT_NOT_REACHED();
    case MediaTextTrackDisplayContainer:
    case MediaTextTrackDisplay:
    case MediaClosedCaptionsContainer:
    case MediaClosedCaptionsTrackList:
        ASSERT_NOT_REACHED();
        break;
    }

    return false;
}
예제 #11
0
void RenderTheme::paintSliderTicks(RenderObject* o, const PaintInfo& paintInfo, const IntRect& rect)
{
    Node* node = o->node();
    if (!node)
        return;

    HTMLInputElement* input = node->toInputElement();
    if (!input)
        return;

    HTMLDataListElement* dataList = static_cast<HTMLDataListElement*>(input->list());
    if (!dataList)
        return;

    double min = input->minimum();
    double max = input->maximum();
    ControlPart part = o->style()->appearance();
    // We don't support ticks on alternate sliders like MediaVolumeSliders.
    if (part !=  SliderHorizontalPart && part != SliderVerticalPart)
        return;
    bool isHorizontal = part ==  SliderHorizontalPart;

    IntSize thumbSize;
    RenderObject* thumbRenderer = input->sliderThumbElement()->renderer();
    if (thumbRenderer) {
        RenderStyle* thumbStyle = thumbRenderer->style();
        int thumbWidth = thumbStyle->width().intValue();
        int thumbHeight = thumbStyle->height().intValue();
        thumbSize.setWidth(isHorizontal ? thumbWidth : thumbHeight);
        thumbSize.setHeight(isHorizontal ? thumbHeight : thumbWidth);
    }

    IntSize tickSize = sliderTickSize();
    float zoomFactor = o->style()->effectiveZoom();
    FloatRect tickRect;
    int tickRegionSideMargin = 0;
    int tickRegionWidth = 0;
    IntRect trackBounds;
    RenderObject* trackRenderer = input->sliderTrackElement()->renderer();
    // We can ignoring transforms because transform is handled by the graphics context.
    if (trackRenderer)
        trackBounds = trackRenderer->absoluteBoundingBoxRectIgnoringTransforms();
    IntRect sliderBounds = o->absoluteBoundingBoxRectIgnoringTransforms();

    // Make position relative to the transformed ancestor element.
    trackBounds.setX(trackBounds.x() - sliderBounds.x() + rect.x());
    trackBounds.setY(trackBounds.y() - sliderBounds.y() + rect.y());

    if (isHorizontal) {
        tickRect.setWidth(floor(tickSize.width() * zoomFactor));
        tickRect.setHeight(floor(tickSize.height() * zoomFactor));
        tickRect.setY(floor(rect.y() + rect.height() / 2.0 + sliderTickOffsetFromTrackCenter() * zoomFactor));
        tickRegionSideMargin = trackBounds.x() + (thumbSize.width() - tickSize.width() * zoomFactor) / 2.0;
        tickRegionWidth = trackBounds.width() - thumbSize.width();
    } else {
        tickRect.setWidth(floor(tickSize.height() * zoomFactor));
        tickRect.setHeight(floor(tickSize.width() * zoomFactor));
        tickRect.setX(floor(rect.x() + rect.width() / 2.0 + sliderTickOffsetFromTrackCenter() * zoomFactor));
        tickRegionSideMargin = trackBounds.y() + (thumbSize.width() - tickSize.width() * zoomFactor) / 2.0;
        tickRegionWidth = trackBounds.height() - thumbSize.width();
    }
    RefPtr<HTMLCollection> options = dataList->options();
    GraphicsContextStateSaver stateSaver(*paintInfo.context);
    paintInfo.context->setFillColor(o->style()->visitedDependentColor(CSSPropertyColor), ColorSpaceDeviceRGB);
    for (unsigned i = 0; Node* node = options->item(i); i++) {
        ASSERT(node->hasTagName(optionTag));
        HTMLOptionElement* optionElement = toHTMLOptionElement(node);
        String value = optionElement->value();
        if (!input->isValidValue(value))
            continue;
        double parsedValue = parseToDoubleForNumberType(input->sanitizeValue(value));
        double tickFraction = (parsedValue - min) / (max - min);
        double tickRatio = isHorizontal && o->style()->isLeftToRightDirection() ? tickFraction : 1.0 - tickFraction;
        double tickPosition = round(tickRegionSideMargin + tickRegionWidth * tickRatio);
        if (isHorizontal)
            tickRect.setX(tickPosition);
        else
            tickRect.setY(tickPosition);
        paintInfo.context->fillRect(tickRect);
    }
}
예제 #12
0
void SVGInlineTextBox::paintSelectionBackground(PaintInfo& paintInfo)
{
    ASSERT(paintInfo.shouldPaintWithinRoot(renderer()));
    ASSERT(paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseSelection);
    ASSERT(truncation() == cNoTruncation);

    if (renderer()->style()->visibility() != VISIBLE)
        return;

    RenderObject* parentRenderer = parent()->renderer();
    ASSERT(parentRenderer);
    ASSERT(!parentRenderer->document()->printing());

    // Determine whether or not we're selected.
    bool paintSelectedTextOnly = paintInfo.phase == PaintPhaseSelection;
    bool hasSelection = selectionState() != RenderObject::SelectionNone;
    if (!hasSelection || paintSelectedTextOnly)
        return;

    Color backgroundColor = renderer()->selectionBackgroundColor();
    if (!backgroundColor.isValid() || !backgroundColor.alpha())
        return;

    RenderSVGInlineText* textRenderer = toRenderSVGInlineText(this->textRenderer());
    ASSERT(textRenderer);
    if (!textShouldBePainted(textRenderer))
        return;

    RenderStyle* style = parentRenderer->style();
    ASSERT(style);

    RenderStyle* selectionStyle = style;
    if (hasSelection) {
        selectionStyle = parentRenderer->getCachedPseudoStyle(SELECTION);
        if (!selectionStyle)
            selectionStyle = style;
    }

    int startPosition, endPosition;
    selectionStartEnd(startPosition, endPosition);

    int fragmentStartPosition = 0;
    int fragmentEndPosition = 0;
    AffineTransform fragmentTransform;
    unsigned textFragmentsSize = m_textFragments.size();
    for (unsigned i = 0; i < textFragmentsSize; ++i) {
        SVGTextFragment& fragment = m_textFragments.at(i);
        ASSERT(!m_paintingResource);

        fragmentStartPosition = startPosition;
        fragmentEndPosition = endPosition;
        if (!mapStartEndPositionsIntoFragmentCoordinates(fragment, fragmentStartPosition, fragmentEndPosition))
            continue;

        GraphicsContextStateSaver stateSaver(*paintInfo.context);
        fragment.buildFragmentTransform(fragmentTransform);
        if (!fragmentTransform.isIdentity())
            paintInfo.context->concatCTM(fragmentTransform);

        paintInfo.context->setFillColor(backgroundColor, style->colorSpace());
        paintInfo.context->fillRect(selectionRectForTextFragment(fragment, fragmentStartPosition, fragmentEndPosition, style), backgroundColor, style->colorSpace());

        m_paintingResourceMode = ApplyToDefaultMode;
    }

    ASSERT(!m_paintingResource);
}
예제 #13
0
파일: Image.cpp 프로젝트: hnney/webkit
void Image::drawTiled(GraphicsContext& ctxt, const FloatRect& destRect, const FloatPoint& srcPoint, const FloatSize& scaledTileSize, const FloatSize& spacing, CompositeOperator op, BlendMode blendMode)
{    
    if (mayFillWithSolidColor()) {
        fillWithSolidColor(ctxt, destRect, solidColor(), op);
        return;
    }

    ASSERT(!isBitmapImage() || notSolidColor());

#if PLATFORM(IOS)
    FloatSize intrinsicTileSize = originalSize();
#else
    FloatSize intrinsicTileSize = size();
#endif
    if (hasRelativeWidth())
        intrinsicTileSize.setWidth(scaledTileSize.width());
    if (hasRelativeHeight())
        intrinsicTileSize.setHeight(scaledTileSize.height());

    FloatSize scale(scaledTileSize.width() / intrinsicTileSize.width(),
                    scaledTileSize.height() / intrinsicTileSize.height());

    FloatRect oneTileRect;
    FloatSize actualTileSize(scaledTileSize.width() + spacing.width(), scaledTileSize.height() + spacing.height());
    oneTileRect.setX(destRect.x() + fmodf(fmodf(-srcPoint.x(), actualTileSize.width()) - actualTileSize.width(), actualTileSize.width()));
    oneTileRect.setY(destRect.y() + fmodf(fmodf(-srcPoint.y(), actualTileSize.height()) - actualTileSize.height(), actualTileSize.height()));
    oneTileRect.setSize(scaledTileSize);
    
    // Check and see if a single draw of the image can cover the entire area we are supposed to tile.
    if (oneTileRect.contains(destRect) && !ctxt.drawLuminanceMask()) {
        FloatRect visibleSrcRect;
        visibleSrcRect.setX((destRect.x() - oneTileRect.x()) / scale.width());
        visibleSrcRect.setY((destRect.y() - oneTileRect.y()) / scale.height());
        visibleSrcRect.setWidth(destRect.width() / scale.width());
        visibleSrcRect.setHeight(destRect.height() / scale.height());
        draw(ctxt, destRect, visibleSrcRect, op, blendMode, ImageOrientationDescription());
        return;
    }

#if PLATFORM(IOS)
    // When using accelerated drawing on iOS, it's faster to stretch an image than to tile it.
    if (ctxt.isAcceleratedContext()) {
        if (size().width() == 1 && intersection(oneTileRect, destRect).height() == destRect.height()) {
            FloatRect visibleSrcRect;
            visibleSrcRect.setX(0);
            visibleSrcRect.setY((destRect.y() - oneTileRect.y()) / scale.height());
            visibleSrcRect.setWidth(1);
            visibleSrcRect.setHeight(destRect.height() / scale.height());
            draw(ctxt, destRect, visibleSrcRect, op, BlendModeNormal, ImageOrientationDescription());
            return;
        }
        if (size().height() == 1 && intersection(oneTileRect, destRect).width() == destRect.width()) {
            FloatRect visibleSrcRect;
            visibleSrcRect.setX((destRect.x() - oneTileRect.x()) / scale.width());
            visibleSrcRect.setY(0);
            visibleSrcRect.setWidth(destRect.width() / scale.width());
            visibleSrcRect.setHeight(1);
            draw(ctxt, destRect, visibleSrcRect, op, BlendModeNormal, ImageOrientationDescription());
            return;
        }
    }
#endif

    // Patterned images and gradients can use lots of memory for caching when the
    // tile size is large (<rdar://problem/4691859>, <rdar://problem/6239505>).
    // Memory consumption depends on the transformed tile size which can get
    // larger than the original tile if user zooms in enough.
#if PLATFORM(IOS)
    const float maxPatternTilePixels = 512 * 512;
#else
    const float maxPatternTilePixels = 2048 * 2048;
#endif
    FloatRect transformedTileSize = ctxt.getCTM().mapRect(FloatRect(FloatPoint(), scaledTileSize));
    float transformedTileSizePixels = transformedTileSize.width() * transformedTileSize.height();
    FloatRect currentTileRect = oneTileRect;
    if (transformedTileSizePixels > maxPatternTilePixels) {
        GraphicsContextStateSaver stateSaver(ctxt);
        ctxt.clip(destRect);

        currentTileRect.shiftYEdgeTo(destRect.y());
        float toY = currentTileRect.y();
        while (toY < destRect.maxY()) {
            currentTileRect.shiftXEdgeTo(destRect.x());
            float toX = currentTileRect.x();
            while (toX < destRect.maxX()) {
                FloatRect toRect(toX, toY, currentTileRect.width(), currentTileRect.height());
                FloatRect fromRect(toFloatPoint(currentTileRect.location() - oneTileRect.location()), currentTileRect.size());
                fromRect.scale(1 / scale.width(), 1 / scale.height());

                draw(ctxt, toRect, fromRect, op, BlendModeNormal, ImageOrientationDescription());
                toX += currentTileRect.width();
                currentTileRect.shiftXEdgeTo(oneTileRect.x());
            }
            toY += currentTileRect.height();
            currentTileRect.shiftYEdgeTo(oneTileRect.y());
        }
        return;
    }

    AffineTransform patternTransform = AffineTransform().scaleNonUniform(scale.width(), scale.height());
    FloatRect tileRect(FloatPoint(), intrinsicTileSize);
    drawPattern(ctxt, tileRect, patternTransform, oneTileRect.location(), spacing, op, destRect, blendMode);

#if PLATFORM(IOS)
    startAnimation(DoNotCatchUp);
#else
    startAnimation();
#endif
}
예제 #14
0
void SVGInlineTextBox::paint(PaintInfo& paintInfo, const LayoutPoint&, LayoutUnit, LayoutUnit)
{
    ASSERT(paintInfo.shouldPaintWithinRoot(renderer()));
    ASSERT(paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseSelection);
    ASSERT(truncation() == cNoTruncation);

    if (renderer()->style()->visibility() != VISIBLE)
        return;

    // Note: We're explicitely not supporting composition & custom underlines and custom highlighters - unlike InlineTextBox.
    // If we ever need that for SVG, it's very easy to refactor and reuse the code.

    RenderObject* parentRenderer = parent()->renderer();
    ASSERT(parentRenderer);

    bool paintSelectedTextOnly = paintInfo.phase == PaintPhaseSelection;
    bool hasSelection = !parentRenderer->document()->printing() && selectionState() != RenderObject::SelectionNone;
    if (!hasSelection && paintSelectedTextOnly)
        return;

    RenderSVGInlineText* textRenderer = toRenderSVGInlineText(this->textRenderer());
    ASSERT(textRenderer);
    if (!textShouldBePainted(textRenderer))
        return;

    RenderStyle* style = parentRenderer->style();
    ASSERT(style);

    const SVGRenderStyle* svgStyle = style->svgStyle();
    ASSERT(svgStyle);

    bool hasFill = svgStyle->hasFill();
    bool hasStroke = svgStyle->hasStroke();

    RenderStyle* selectionStyle = style;
    if (hasSelection) {
        selectionStyle = parentRenderer->getCachedPseudoStyle(SELECTION);
        if (selectionStyle) {
            const SVGRenderStyle* svgSelectionStyle = selectionStyle->svgStyle();
            ASSERT(svgSelectionStyle);

            if (!hasFill)
                hasFill = svgSelectionStyle->hasFill();
            if (!hasStroke)
                hasStroke = svgSelectionStyle->hasStroke();
        } else
            selectionStyle = style;
    }

    AffineTransform fragmentTransform;
    unsigned textFragmentsSize = m_textFragments.size();
    for (unsigned i = 0; i < textFragmentsSize; ++i) {
        SVGTextFragment& fragment = m_textFragments.at(i);
        ASSERT(!m_paintingResource);

        GraphicsContextStateSaver stateSaver(*paintInfo.context);
        fragment.buildFragmentTransform(fragmentTransform);
        if (!fragmentTransform.isIdentity())
            paintInfo.context->concatCTM(fragmentTransform);

        // Spec: All text decorations except line-through should be drawn before the text is filled and stroked; thus, the text is rendered on top of these decorations.
        int decorations = style->textDecorationsInEffect();
        if (decorations & UNDERLINE)
            paintDecoration(paintInfo.context, UNDERLINE, fragment);
        if (decorations & OVERLINE)
            paintDecoration(paintInfo.context, OVERLINE, fragment);

        // Fill text
        if (hasFill) {
            m_paintingResourceMode = ApplyToFillMode | ApplyToTextMode;
            paintText(paintInfo.context, style, selectionStyle, fragment, hasSelection, paintSelectedTextOnly);
        }

        // Stroke text
        if (hasStroke) {
            m_paintingResourceMode = ApplyToStrokeMode | ApplyToTextMode;
            paintText(paintInfo.context, style, selectionStyle, fragment, hasSelection, paintSelectedTextOnly);
        }

        // Spec: Line-through should be drawn after the text is filled and stroked; thus, the line-through is rendered on top of the text.
        if (decorations & LINE_THROUGH)
            paintDecoration(paintInfo.context, LINE_THROUGH, fragment);

        m_paintingResourceMode = ApplyToDefaultMode;
    }

    ASSERT(!m_paintingResource);
}
예제 #15
0
void EllipsisBox::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
{
    GraphicsContext* context = paintInfo.context;
    RenderStyle* style = m_renderer->style(isFirstLineStyle());

    const Font& font = style->font();
    FloatPoint boxOrigin = locationIncludingFlipping();
    LayoutPoint adjustedPaintOffset = paintOffset;
    if (!isHorizontal())
        adjustedPaintOffset.move(0, -virtualLogicalHeight());
    boxOrigin.move(adjustedPaintOffset.x(), adjustedPaintOffset.y());
    FloatRect boxRect(boxOrigin, LayoutSize(logicalWidth(), virtualLogicalHeight()));
    GraphicsContextStateSaver stateSaver(*context);
    if (!isHorizontal())
        context->concatCTM(InlineTextBox::rotation(boxRect, InlineTextBox::Clockwise));
    FloatPoint textOrigin = FloatPoint(boxOrigin.x(), boxOrigin.y() + font.fontMetrics().ascent());

    Color styleTextColor = m_renderer->resolveColor(style, CSSPropertyWebkitTextFillColor);
    if (styleTextColor != context->fillColor())
        context->setFillColor(styleTextColor);

    if (selectionState() != RenderObject::SelectionNone) {
        paintSelection(context, boxOrigin, style, font);

        // Select the correct color for painting the text.
        Color foreground = paintInfo.forceBlackText() ? Color::black : renderer()->selectionForegroundColor();
        if (foreground.isValid() && foreground != styleTextColor)
            context->setFillColor(foreground);
    }

    // Text shadows are disabled when printing. http://crbug.com/258321
    const ShadowList* shadowList = context->printing() ? 0 : style->textShadow();
    bool hasShadow = shadowList;
    if (hasShadow) {
        DrawLooper drawLooper;
        for (size_t i = shadowList->shadows().size(); i--; ) {
            const ShadowData& shadow = shadowList->shadows()[i];
            int shadowX = isHorizontal() ? shadow.x() : shadow.y();
            int shadowY = isHorizontal() ? shadow.y() : -shadow.x();
            FloatSize offset(shadowX, shadowY);
            drawLooper.addShadow(offset, shadow.blur(), m_renderer->resolveColor(shadow.color()),
                DrawLooper::ShadowRespectsTransforms, DrawLooper::ShadowIgnoresAlpha);
        }
        drawLooper.addUnmodifiedContent();
        context->setDrawLooper(drawLooper);
    }

    // FIXME: Why is this always LTR? Fix by passing correct text run flags below.
    TextRun textRun = RenderBlockFlow::constructTextRun(renderer(), font, m_str, style, TextRun::AllowTrailingExpansion);
    TextRunPaintInfo textRunPaintInfo(textRun);
    textRunPaintInfo.bounds = boxRect;
    context->drawText(font, textRunPaintInfo, textOrigin);

    // Restore the regular fill color.
    if (styleTextColor != context->fillColor())
        context->setFillColor(styleTextColor);

    if (hasShadow)
        context->clearDrawLooper();

    paintMarkupBox(paintInfo, paintOffset, lineTop, lineBottom, style);
}
void ListMarkerPainter::paint(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
    if (paintInfo.phase != PaintPhaseForeground)
        return;

    if (m_layoutListMarker.style()->visibility() != VISIBLE)
        return;

    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*paintInfo.context, m_layoutListMarker, paintInfo.phase, paintOffset))
        return;

    LayoutPoint boxOrigin(paintOffset + m_layoutListMarker.location());
    LayoutRect overflowRect(m_layoutListMarker.visualOverflowRect());
    if (m_layoutListMarker.selectionState() != SelectionNone)
        overflowRect.unite(m_layoutListMarker.localSelectionRect());
    overflowRect.moveBy(boxOrigin);

    IntRect pixelSnappedOverflowRect = pixelSnappedIntRect(overflowRect);
    if (!paintInfo.rect.intersects(pixelSnappedOverflowRect))
        return;

    LayoutObjectDrawingRecorder recorder(*paintInfo.context, m_layoutListMarker, paintInfo.phase, pixelSnappedOverflowRect, paintOffset);

    LayoutRect box(boxOrigin, m_layoutListMarker.size());

    IntRect marker = m_layoutListMarker.getRelativeMarkerRect();
    marker.moveBy(roundedIntPoint(boxOrigin));

    GraphicsContext* context = paintInfo.context;

    if (m_layoutListMarker.isImage()) {
        context->drawImage(m_layoutListMarker.image()->image(&m_layoutListMarker, marker.size()).get(), marker);
        if (m_layoutListMarker.selectionState() != SelectionNone) {
            LayoutRect selRect = m_layoutListMarker.localSelectionRect();
            selRect.moveBy(boxOrigin);
            context->fillRect(pixelSnappedIntRect(selRect), m_layoutListMarker.listItem()->selectionBackgroundColor());
        }
        return;
    }

    if (m_layoutListMarker.selectionState() != SelectionNone) {
        LayoutRect selRect = m_layoutListMarker.localSelectionRect();
        selRect.moveBy(boxOrigin);
        context->fillRect(pixelSnappedIntRect(selRect), m_layoutListMarker.listItem()->selectionBackgroundColor());
    }

    const Color color(m_layoutListMarker.resolveColor(CSSPropertyColor));
    context->setStrokeColor(color);
    context->setStrokeStyle(SolidStroke);
    context->setStrokeThickness(1.0f);
    context->setFillColor(color);

    EListStyleType type = m_layoutListMarker.style()->listStyleType();
    switch (type) {
    case Disc:
        context->fillEllipse(marker);
        return;
    case Circle:
        context->strokeEllipse(marker);
        return;
    case Square:
        context->fillRect(marker);
        return;
    case NoneListStyle:
        return;
    case ArabicIndic:
    case Armenian:
    case Bengali:
    case Cambodian:
    case CJKIdeographic:
    case CjkEarthlyBranch:
    case CjkHeavenlyStem:
    case DecimalLeadingZero:
    case DecimalListStyle:
    case Devanagari:
    case EthiopicHalehame:
    case EthiopicHalehameAm:
    case EthiopicHalehameTiEr:
    case EthiopicHalehameTiEt:
    case Georgian:
    case Gujarati:
    case Gurmukhi:
    case Hebrew:
    case Hangul:
    case HangulConsonant:
    case KoreanHangulFormal:
    case KoreanHanjaFormal:
    case KoreanHanjaInformal:
    case Hiragana:
    case HiraganaIroha:
    case Kannada:
    case Katakana:
    case KatakanaIroha:
    case Khmer:
    case Lao:
    case LowerAlpha:
    case LowerArmenian:
    case LowerGreek:
    case LowerLatin:
    case LowerRoman:
    case Malayalam:
    case Mongolian:
    case Myanmar:
    case Oriya:
    case Persian:
    case SimpChineseFormal:
    case SimpChineseInformal:
    case Telugu:
    case Thai:
    case Tibetan:
    case TradChineseFormal:
    case TradChineseInformal:
    case UpperAlpha:
    case UpperArmenian:
    case UpperLatin:
    case UpperRoman:
    case Urdu:
        break;
    }
    if (m_layoutListMarker.text().isEmpty())
        return;

    const Font& font = m_layoutListMarker.style()->font();
    TextRun textRun = constructTextRun(font, m_layoutListMarker.text(), m_layoutListMarker.styleRef());

    GraphicsContextStateSaver stateSaver(*context, false);
    if (!m_layoutListMarker.style()->isHorizontalWritingMode()) {
        marker.moveBy(roundedIntPoint(-boxOrigin));
        marker = marker.transposedRect();
        marker.moveBy(IntPoint(roundToInt(box.x()), roundToInt(box.y() - m_layoutListMarker.logicalHeight())));
        stateSaver.save();
        context->translate(marker.x(), marker.maxY());
        context->rotate(static_cast<float>(deg2rad(90.)));
        context->translate(-marker.x(), -marker.maxY());
    }

    TextRunPaintInfo textRunPaintInfo(textRun);
    textRunPaintInfo.bounds = marker;
    IntPoint textOrigin = IntPoint(marker.x(), marker.y() + m_layoutListMarker.style()->fontMetrics().ascent());

    // Text is not arbitrary. We can judge whether it's RTL from the first character,
    // and we only need to handle the direction RightToLeft for now.
    bool textNeedsReversing = WTF::Unicode::direction(m_layoutListMarker.text()[0]) == WTF::Unicode::RightToLeft;
    StringBuilder reversedText;
    if (textNeedsReversing) {
        unsigned length = m_layoutListMarker.text().length();
        reversedText.reserveCapacity(length);
        for (int i = length - 1; i >= 0; --i)
            reversedText.append(m_layoutListMarker.text()[i]);
        ASSERT(reversedText.length() == length);
        textRun.setText(reversedText.toString());
    }

    const UChar suffix = m_layoutListMarker.listMarkerSuffix(type, m_layoutListMarker.listItem()->value());
    UChar suffixStr[2] = {
        m_layoutListMarker.style()->isLeftToRightDirection() ? suffix : static_cast<UChar>(' '),
        m_layoutListMarker.style()->isLeftToRightDirection() ? static_cast<UChar>(' ') : suffix
    };
    TextRun suffixRun = constructTextRun(font, suffixStr, 2, m_layoutListMarker.styleRef(), m_layoutListMarker.style()->direction());
    TextRunPaintInfo suffixRunInfo(suffixRun);
    suffixRunInfo.bounds = marker;

    if (m_layoutListMarker.style()->isLeftToRightDirection()) {
        context->drawText(font, textRunPaintInfo, textOrigin);
        context->drawText(font, suffixRunInfo, textOrigin + IntSize(font.width(textRun), 0));
    } else {
        context->drawText(font, suffixRunInfo, textOrigin);
        context->drawText(font, textRunPaintInfo, textOrigin + IntSize(font.width(suffixRun), 0));
    }
}
예제 #17
0
void Image::drawPattern(GraphicsContext* ctxt, const FloatRect& tileRect, const AffineTransform& patternTransform,
                        const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator op, const FloatRect& destRect)
{
    if (!nativeImageForCurrentFrame())
        return;

    if (!patternTransform.isInvertible())
        return;

    CGContextRef context = ctxt->platformContext();
    GraphicsContextStateSaver stateSaver(*ctxt);
    CGContextClipToRect(context, destRect);
    ctxt->setCompositeOperation(op);
    CGContextTranslateCTM(context, destRect.x(), destRect.y() + destRect.height());
    CGContextScaleCTM(context, 1, -1);
    
    // Compute the scaled tile size.
    float scaledTileHeight = tileRect.height() * narrowPrecisionToFloat(patternTransform.d());
    
    // We have to adjust the phase to deal with the fact we're in Cartesian space now (with the bottom left corner of destRect being
    // the origin).
    float adjustedX = phase.x() - destRect.x() + tileRect.x() * narrowPrecisionToFloat(patternTransform.a()); // We translated the context so that destRect.x() is the origin, so subtract it out.
    float adjustedY = destRect.height() - (phase.y() - destRect.y() + tileRect.y() * narrowPrecisionToFloat(patternTransform.d()) + scaledTileHeight);

    CGImageRef tileImage = nativeImageForCurrentFrame();
    float h = CGImageGetHeight(tileImage);

    RetainPtr<CGImageRef> subImage;
    if (tileRect.size() == size())
        subImage = tileImage;
    else {
        // Copying a sub-image out of a partially-decoded image stops the decoding of the original image. It should never happen
        // because sub-images are only used for border-image, which only renders when the image is fully decoded.
        ASSERT(h == height());
        subImage.adoptCF(CGImageCreateWithImageInRect(tileImage, tileRect));
    }

    // Adjust the color space.
    subImage = Image::imageWithColorSpace(subImage.get(), styleColorSpace);
    
    // Leopard has an optimized call for the tiling of image patterns, but we can only use it if the image has been decoded enough that
    // its buffer is the same size as the overall image.  Because a partially decoded CGImageRef with a smaller width or height than the
    // overall image buffer needs to tile with "gaps", we can't use the optimized tiling call in that case.
    // FIXME: We cannot use CGContextDrawTiledImage with scaled tiles on Leopard, because it suffers from rounding errors.  Snow Leopard is ok.
    float scaledTileWidth = tileRect.width() * narrowPrecisionToFloat(patternTransform.a());
    float w = CGImageGetWidth(tileImage);
#ifdef BUILDING_ON_LEOPARD
    if (w == size().width() && h == size().height() && scaledTileWidth == tileRect.width() && scaledTileHeight == tileRect.height())
#else
    if (w == size().width() && h == size().height())
#endif
        CGContextDrawTiledImage(context, FloatRect(adjustedX, adjustedY, scaledTileWidth, scaledTileHeight), subImage.get());
    else {

    // On Leopard and newer, this code now only runs for partially decoded images whose buffers do not yet match the overall size of the image.
    static const CGPatternCallbacks patternCallbacks = { 0, drawPatternCallback, NULL };
    CGAffineTransform matrix = CGAffineTransformMake(narrowPrecisionToCGFloat(patternTransform.a()), 0, 0, narrowPrecisionToCGFloat(patternTransform.d()), adjustedX, adjustedY);
    matrix = CGAffineTransformConcat(matrix, CGContextGetCTM(context));
    // The top of a partially-decoded image is drawn at the bottom of the tile. Map it to the top.
    matrix = CGAffineTransformTranslate(matrix, 0, size().height() - h);
    RetainPtr<CGPatternRef> pattern(AdoptCF, CGPatternCreate(subImage.get(), CGRectMake(0, 0, tileRect.width(), tileRect.height()),
                                             matrix, tileRect.width(), tileRect.height(), 
                                             kCGPatternTilingConstantSpacing, true, &patternCallbacks));
    if (!pattern)
        return;

    RetainPtr<CGColorSpaceRef> patternSpace(AdoptCF, CGColorSpaceCreatePattern(0));
    
    CGFloat alpha = 1;
    RetainPtr<CGColorRef> color(AdoptCF, CGColorCreateWithPattern(patternSpace.get(), pattern.get(), &alpha));
    CGContextSetFillColorSpace(context, patternSpace.get());

    // FIXME: Really want a public API for this.  It is just CGContextSetBaseCTM(context, CGAffineTransformIdentiy).
    wkSetBaseCTM(context, CGAffineTransformIdentity);
    CGContextSetPatternPhase(context, CGSizeZero);

    CGContextSetFillColorWithColor(context, color.get());
    CGContextFillRect(context, CGContextGetClipBoundingBox(context));

    }

    stateSaver.restore();

    if (imageObserver())
        imageObserver()->didDraw(this);
}
예제 #18
0
void ListMarkerPainter::paint(const PaintInfo& paintInfo,
                              const LayoutPoint& paintOffset) {
  if (paintInfo.phase != PaintPhaseForeground)
    return;

  if (m_layoutListMarker.style()->visibility() != EVisibility::Visible)
    return;

  if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(
          paintInfo.context, m_layoutListMarker, paintInfo.phase))
    return;

  LayoutPoint boxOrigin(paintOffset + m_layoutListMarker.location());
  LayoutRect overflowRect(m_layoutListMarker.visualOverflowRect());
  overflowRect.moveBy(boxOrigin);

  IntRect pixelSnappedOverflowRect = pixelSnappedIntRect(overflowRect);
  if (!paintInfo.cullRect().intersectsCullRect(overflowRect))
    return;

  LayoutObjectDrawingRecorder recorder(paintInfo.context, m_layoutListMarker,
                                       paintInfo.phase,
                                       pixelSnappedOverflowRect);

  LayoutRect box(boxOrigin, m_layoutListMarker.size());

  IntRect marker = m_layoutListMarker.getRelativeMarkerRect();
  marker.moveBy(roundedIntPoint(boxOrigin));

  GraphicsContext& context = paintInfo.context;

  if (m_layoutListMarker.isImage()) {
    context.drawImage(m_layoutListMarker.image()
                          ->image(m_layoutListMarker, marker.size(),
                                  m_layoutListMarker.styleRef().effectiveZoom())
                          .get(),
                      marker);
    if (m_layoutListMarker.getSelectionState() != SelectionNone) {
      LayoutRect selRect = m_layoutListMarker.localSelectionRect();
      selRect.moveBy(boxOrigin);
      context.fillRect(
          pixelSnappedIntRect(selRect),
          m_layoutListMarker.listItem()->selectionBackgroundColor());
    }
    return;
  }

  LayoutListMarker::ListStyleCategory styleCategory =
      m_layoutListMarker.getListStyleCategory();
  if (styleCategory == LayoutListMarker::ListStyleCategory::None)
    return;

  Color color(m_layoutListMarker.resolveColor(CSSPropertyColor));

  if (BoxPainter::shouldForceWhiteBackgroundForPrintEconomy(
          m_layoutListMarker.styleRef(),
          m_layoutListMarker.listItem()->document()))
    color = TextPainter::textColorForWhiteBackground(color);

  // Apply the color to the list marker text.
  context.setFillColor(color);

  const EListStyleType listStyle = m_layoutListMarker.style()->listStyleType();
  if (styleCategory == LayoutListMarker::ListStyleCategory::Symbol) {
    paintSymbol(context, color, marker, listStyle);
    return;
  }

  if (m_layoutListMarker.text().isEmpty())
    return;

  const Font& font = m_layoutListMarker.style()->font();
  TextRun textRun = constructTextRun(font, m_layoutListMarker.text(),
                                     m_layoutListMarker.styleRef());

  GraphicsContextStateSaver stateSaver(context, false);
  if (!m_layoutListMarker.style()->isHorizontalWritingMode()) {
    marker.moveBy(roundedIntPoint(-boxOrigin));
    marker = marker.transposedRect();
    marker.moveBy(
        IntPoint(roundToInt(box.x()),
                 roundToInt(box.y() - m_layoutListMarker.logicalHeight())));
    stateSaver.save();
    context.translate(marker.x(), marker.maxY());
    context.rotate(static_cast<float>(deg2rad(90.)));
    context.translate(-marker.x(), -marker.maxY());
  }

  TextRunPaintInfo textRunPaintInfo(textRun);
  textRunPaintInfo.bounds = marker;
  const SimpleFontData* fontData =
      m_layoutListMarker.style()->font().primaryFont();
  IntPoint textOrigin = IntPoint(
      marker.x(),
      marker.y() + (fontData ? fontData->getFontMetrics().ascent() : 0));

  // Text is not arbitrary. We can judge whether it's RTL from the first
  // character, and we only need to handle the direction RightToLeft for now.
  bool textNeedsReversing =
      WTF::Unicode::direction(m_layoutListMarker.text()[0]) ==
      WTF::Unicode::RightToLeft;
  StringBuilder reversedText;
  if (textNeedsReversing) {
    unsigned length = m_layoutListMarker.text().length();
    reversedText.reserveCapacity(length);
    for (int i = length - 1; i >= 0; --i)
      reversedText.append(m_layoutListMarker.text()[i]);
    DCHECK(reversedText.length() == length);
    textRun.setText(reversedText.toString());
  }

  const UChar suffix =
      ListMarkerText::suffix(listStyle, m_layoutListMarker.listItem()->value());
  UChar suffixStr[2] = {suffix, static_cast<UChar>(' ')};
  TextRun suffixRun =
      constructTextRun(font, suffixStr, 2, m_layoutListMarker.styleRef(),
                       m_layoutListMarker.style()->direction());
  TextRunPaintInfo suffixRunInfo(suffixRun);
  suffixRunInfo.bounds = marker;

  if (m_layoutListMarker.style()->isLeftToRightDirection()) {
    context.drawText(font, textRunPaintInfo, textOrigin);
    context.drawText(font, suffixRunInfo,
                     textOrigin + IntSize(font.width(textRun), 0));
  } else {
    context.drawText(font, suffixRunInfo, textOrigin);
    context.drawText(font, textRunPaintInfo,
                     textOrigin + IntSize(font.width(suffixRun), 0));
  }
}
예제 #19
0
void RenderMathMLRoot::paint(PaintInfo& info, const LayoutPoint& paintOffset)
{
    RenderMathMLBlock::paint(info, paintOffset);
    
    if (info.context->paintingDisabled())
        return;
    
    IntPoint adjustedPaintOffset = roundedIntPoint(paintOffset + location() + contentBoxRect().location());
    
    int startX = adjustedPaintOffset.x();
    int frontWidth = lroundf(gFrontWidthEms * style()->fontSize());
    int overbarWidth = roundToInt(contentLogicalWidth()) + m_overbarLeftPointShift;
    
    int baseHeight = roundToInt(contentLogicalHeight());
    int rootPad = lroundf(gSpaceAboveEms * style()->fontSize());
    adjustedPaintOffset.setY(adjustedPaintOffset.y() - rootPad);
    
    float radicalDipLeftPointYPos = (index() ? gRootRadicalDipLeftPointYPos : gSqrtRadicalDipLeftPointYPos) * baseHeight;
    
    FloatPoint overbarLeftPoint(startX - m_overbarLeftPointShift, adjustedPaintOffset.y());
    FloatPoint bottomPoint(startX - gRadicalBottomPointXFront * frontWidth, adjustedPaintOffset.y() + baseHeight + gRadicalBottomPointLower);
    FloatPoint dipLeftPoint(startX - gRadicalDipLeftPointXFront * frontWidth, adjustedPaintOffset.y() + radicalDipLeftPointYPos);
    FloatPoint leftEnd(startX - frontWidth, dipLeftPoint.y() + gRadicalLeftEndYShiftEms * style()->fontSize());
    
    GraphicsContextStateSaver stateSaver(*info.context);
    
    info.context->setStrokeThickness(gRadicalLineThicknessEms * style()->fontSize());
    info.context->setStrokeStyle(SolidStroke);
    info.context->setStrokeColor(style()->visitedDependentColor(CSSPropertyColor), ColorSpaceDeviceRGB);
    info.context->setLineJoin(MiterJoin);
    info.context->setMiterLimit(style()->fontSize());
    
    Path root;
    
    root.moveTo(FloatPoint(overbarLeftPoint.x() + overbarWidth, adjustedPaintOffset.y()));
    // draw top
    root.addLineTo(overbarLeftPoint);
    // draw from top left corner to bottom point of radical
    root.addLineTo(bottomPoint);
    // draw from bottom point to top of left part of radical base "dip"
    root.addLineTo(dipLeftPoint);
    // draw to end
    root.addLineTo(leftEnd);
    
    info.context->strokePath(root);
    
    GraphicsContextStateSaver maskStateSaver(*info.context);
    
    // Build a mask to draw the thick part of the root.
    Path mask;
    
    mask.moveTo(overbarLeftPoint);
    mask.addLineTo(bottomPoint);
    mask.addLineTo(dipLeftPoint);
    mask.addLineTo(FloatPoint(2 * dipLeftPoint.x() - leftEnd.x(), 2 * dipLeftPoint.y() - leftEnd.y()));
    
    info.context->clip(mask);
    
    // Draw the thick part of the root.
    info.context->setStrokeThickness(gRadicalThickLineThicknessEms * style()->fontSize());
    info.context->setLineCap(SquareCap);
    
    Path line;
    line.moveTo(bottomPoint);
    line.addLineTo(dipLeftPoint);
    
    info.context->strokePath(line);
}
예제 #20
0
void SVGInlineTextBox::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit, LayoutUnit)
{
    ASSERT(paintInfo.shouldPaintWithinRoot(renderer()));
    ASSERT(paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseSelection);
    ASSERT(truncation() == cNoTruncation);

    if (renderer().style().visibility() != VISIBLE)
        return;

    // Note: We're explicitely not supporting composition & custom underlines and custom highlighters - unlike InlineTextBox.
    // If we ever need that for SVG, it's very easy to refactor and reuse the code.

    auto& parentRenderer = parent()->renderer();

    bool paintSelectedTextOnly = paintInfo.phase == PaintPhaseSelection;
    bool hasSelection = !parentRenderer.document().printing() && selectionState() != RenderObject::SelectionNone;
    if (!hasSelection && paintSelectedTextOnly)
        return;

    if (!textShouldBePainted(renderer()))
        return;

    RenderStyle& style = parentRenderer.style();

    const SVGRenderStyle& svgStyle = style.svgStyle();

    bool hasFill = svgStyle.hasFill();
    bool hasVisibleStroke = svgStyle.hasVisibleStroke();

    RenderStyle* selectionStyle = &style;
    if (hasSelection) {
        selectionStyle = parentRenderer.getCachedPseudoStyle(SELECTION);
        if (selectionStyle) {
            const SVGRenderStyle& svgSelectionStyle = selectionStyle->svgStyle();

            if (!hasFill)
                hasFill = svgSelectionStyle.hasFill();
            if (!hasVisibleStroke)
                hasVisibleStroke = svgSelectionStyle.hasVisibleStroke();
        } else
            selectionStyle = &style;
    }

    if (renderer().view().frameView().paintBehavior() & PaintBehaviorRenderingSVGMask) {
        hasFill = true;
        hasVisibleStroke = false;
    }

    AffineTransform fragmentTransform;
    unsigned textFragmentsSize = m_textFragments.size();
    for (unsigned i = 0; i < textFragmentsSize; ++i) {
        SVGTextFragment& fragment = m_textFragments.at(i);
        ASSERT(!m_paintingResource);

        GraphicsContextStateSaver stateSaver(paintInfo.context());
        fragment.buildFragmentTransform(fragmentTransform);
        if (!fragmentTransform.isIdentity())
            paintInfo.context().concatCTM(fragmentTransform);

        // Spec: All text decorations except line-through should be drawn before the text is filled and stroked; thus, the text is rendered on top of these decorations.
        int decorations = style.textDecorationsInEffect();
        if (decorations & TextDecorationUnderline)
            paintDecoration(paintInfo.context(), TextDecorationUnderline, fragment);
        if (decorations & TextDecorationOverline)
            paintDecoration(paintInfo.context(), TextDecorationOverline, fragment);

        auto paintOrder = style.svgStyle().paintTypesForPaintOrder();
        for (unsigned i = 0; i < paintOrder.size(); ++i) {
            switch (paintOrder.at(i)) {
            case PaintTypeFill:
                if (!hasFill)
                    continue;
                m_paintingResourceMode = ApplyToFillMode | ApplyToTextMode;
                paintText(paintInfo.context(), &style, selectionStyle, fragment, hasSelection, paintSelectedTextOnly);
                break;
            case PaintTypeStroke:
                if (!hasVisibleStroke)
                    continue;
                m_paintingResourceMode = ApplyToStrokeMode | ApplyToTextMode;
                paintText(paintInfo.context(), &style, selectionStyle, fragment, hasSelection, paintSelectedTextOnly);
                break;
            case PaintTypeMarkers:
                continue;
            }
        }

        // Spec: Line-through should be drawn after the text is filled and stroked; thus, the line-through is rendered on top of the text.
        if (decorations & TextDecorationLineThrough)
            paintDecoration(paintInfo.context(), TextDecorationLineThrough, fragment);

        m_paintingResourceMode = ApplyToDefaultMode;
    }

    // Finally, paint the outline if any.
    if (renderer().style().hasOutline() && is<RenderInline>(parentRenderer))
        downcast<RenderInline>(parentRenderer).paintOutline(paintInfo, paintOffset);

    ASSERT(!m_paintingResource);
}
void SVGInlineTextBox::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit, LayoutUnit)
{
    ASSERT(paintInfo.shouldPaintWithinRoot(renderer()));
    ASSERT(paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseSelection);
    ASSERT(truncation() == cNoTruncation);

    if (renderer()->style()->visibility() != VISIBLE)
        return;

    // Note: We're explicitely not supporting composition & custom underlines and custom highlighters - unlike InlineTextBox.
    // If we ever need that for SVG, it's very easy to refactor and reuse the code.

    RenderObject* parentRenderer = parent()->renderer();
    ASSERT(parentRenderer);

    bool paintSelectedTextOnly = paintInfo.phase == PaintPhaseSelection;
    bool hasSelection = !parentRenderer->document().printing() && selectionState() != RenderObject::SelectionNone;
    if (!hasSelection && paintSelectedTextOnly)
        return;

    RenderSVGInlineText* textRenderer = toRenderSVGInlineText(this->textRenderer());
    ASSERT(textRenderer);
    if (!textShouldBePainted(textRenderer))
        return;

    RenderStyle* style = parentRenderer->style();
    ASSERT(style);

    paintDocumentMarkers(paintInfo.context, paintOffset, style, textRenderer->scaledFont(), true);

    const SVGRenderStyle* svgStyle = style->svgStyle();
    ASSERT(svgStyle);

    bool hasFill = svgStyle->hasFill();
    bool hasVisibleStroke = svgStyle->hasVisibleStroke();

    RenderStyle* selectionStyle = style;
    if (hasSelection) {
        selectionStyle = parentRenderer->getCachedPseudoStyle(SELECTION);
        if (selectionStyle) {
            const SVGRenderStyle* svgSelectionStyle = selectionStyle->svgStyle();
            ASSERT(svgSelectionStyle);

            if (!hasFill)
                hasFill = svgSelectionStyle->hasFill();
            if (!hasVisibleStroke)
                hasVisibleStroke = svgSelectionStyle->hasVisibleStroke();
        } else
            selectionStyle = style;
    }

    if (textRenderer->frame() && textRenderer->frame()->view() && textRenderer->frame()->view()->paintBehavior() & PaintBehaviorRenderingSVGMask) {
        hasFill = true;
        hasVisibleStroke = false;
    }

    AffineTransform fragmentTransform;
    unsigned textFragmentsSize = m_textFragments.size();
    for (unsigned i = 0; i < textFragmentsSize; ++i) {
        SVGTextFragment& fragment = m_textFragments.at(i);
        ASSERT(!m_paintingResource);

        GraphicsContextStateSaver stateSaver(*paintInfo.context, false);
        fragment.buildFragmentTransform(fragmentTransform);
        if (!fragmentTransform.isIdentity()) {
            stateSaver.save();
            paintInfo.context->concatCTM(fragmentTransform);
        }

        // Spec: All text decorations except line-through should be drawn before the text is filled and stroked; thus, the text is rendered on top of these decorations.
        unsigned decorations = style->textDecorationsInEffect();
        if (decorations & TextDecorationUnderline)
            paintDecoration(paintInfo.context, TextDecorationUnderline, fragment);
        if (decorations & TextDecorationOverline)
            paintDecoration(paintInfo.context, TextDecorationOverline, fragment);

        for (int i = 0; i < 3; i++) {
            switch (svgStyle->paintOrderType(i)) {
            case PT_FILL:
                // Fill text
                if (hasFill) {
                    m_paintingResourceMode = ApplyToFillMode | ApplyToTextMode;
                    paintText(paintInfo.context, style, selectionStyle, fragment, hasSelection, paintSelectedTextOnly);
                }
                break;
            case PT_STROKE:
                // Stroke text
                if (hasVisibleStroke) {
                    m_paintingResourceMode = ApplyToStrokeMode | ApplyToTextMode;
                    paintText(paintInfo.context, style, selectionStyle, fragment, hasSelection, paintSelectedTextOnly);
                }
                break;
            case PT_MARKERS:
                // Markers don't apply to text
                break;
            default:
                ASSERT_NOT_REACHED();
                break;
            }
        }

        // Spec: Line-through should be drawn after the text is filled and stroked; thus, the line-through is rendered on top of the text.
        if (decorations & TextDecorationLineThrough)
            paintDecoration(paintInfo.context, TextDecorationLineThrough, fragment);

        m_paintingResourceMode = ApplyToDefaultMode;
    }

    ASSERT(!m_paintingResource);
}
void SVGInlineTextBoxPainter::paintTextWithShadows(const PaintInfo& paintInfo, const ComputedStyle& style,
    TextRun& textRun, const SVGTextFragment& fragment, int startPosition, int endPosition,
    LayoutSVGResourceMode resourceMode)
{
    LayoutSVGInlineText& textLayoutObject = toLayoutSVGInlineText(m_svgInlineTextBox.layoutObject());

    float scalingFactor = textLayoutObject.scalingFactor();
    ASSERT(scalingFactor);

    const Font& scaledFont = textLayoutObject.scaledFont();
    const ShadowList* shadowList = style.textShadow();
    GraphicsContext* context = paintInfo.context;

    // Text shadows are disabled when printing. http://crbug.com/258321
    bool hasShadow = shadowList && !context->printing();

    FloatPoint textOrigin(fragment.x, fragment.y);
    FloatSize textSize(fragment.width, fragment.height);
    AffineTransform paintServerTransform;
    const AffineTransform* additionalPaintServerTransform = 0;

    GraphicsContextStateSaver stateSaver(*context, false);
    if (scalingFactor != 1) {
        textOrigin.scale(scalingFactor, scalingFactor);
        textSize.scale(scalingFactor);
        stateSaver.save();
        context->scale(1 / scalingFactor, 1 / scalingFactor);
        // Adjust the paint-server coordinate space.
        paintServerTransform.scale(scalingFactor);
        additionalPaintServerTransform = &paintServerTransform;
    }

    SkPaint paint;
    if (!SVGPaintContext::paintForLayoutObject(paintInfo, style, m_svgInlineTextBox.parent()->layoutObject(), resourceMode, paint, additionalPaintServerTransform))
        return;
    paint.setAntiAlias(true);

    if (hasShadow) {
        OwnPtr<DrawLooperBuilder> drawLooperBuilder = shadowList->createDrawLooper(DrawLooperBuilder::ShadowRespectsAlpha, style.visitedDependentColor(CSSPropertyColor));
        RefPtr<SkDrawLooper> drawLooper = drawLooperBuilder->detachDrawLooper();
        paint.setLooper(drawLooper.get());
    }

    if (resourceMode == ApplyToStrokeMode) {
        StrokeData strokeData;
        SVGLayoutSupport::applyStrokeStyleToStrokeData(strokeData, style, m_svgInlineTextBox.parent()->layoutObject());
        if (style.svgStyle().vectorEffect() != VE_NON_SCALING_STROKE)
            strokeData.setThickness(strokeData.thickness() * scalingFactor);
        strokeData.setupPaint(&paint);
    }

    TextRunPaintInfo textRunPaintInfo(textRun);
    textRunPaintInfo.from = startPosition;
    textRunPaintInfo.to = endPosition;

    float baseline = scaledFont.fontMetrics().floatAscent();
    textRunPaintInfo.bounds = FloatRect(textOrigin.x(), textOrigin.y() - baseline,
        textSize.width(), textSize.height());

    context->drawText(scaledFont, textRunPaintInfo, textOrigin, paint);
}
void SVGShapePainter::paint(const PaintInfo& paintInfo)
{
    if (paintInfo.phase != PaintPhaseForeground
        || m_layoutSVGShape.style()->visibility() == HIDDEN
        || m_layoutSVGShape.isShapeEmpty())
        return;

    FloatRect boundingBox = m_layoutSVGShape.paintInvalidationRectInLocalCoordinates();
    if (!paintInfo.cullRect().intersectsCullRect(m_layoutSVGShape.localTransform(), boundingBox))
        return;

    PaintInfo paintInfoBeforeFiltering(paintInfo);
    // Shapes cannot have children so do not call updateCullRect.
    TransformRecorder transformRecorder(paintInfoBeforeFiltering.context, m_layoutSVGShape, m_layoutSVGShape.localTransform());
    {
        SVGPaintContext paintContext(m_layoutSVGShape, paintInfoBeforeFiltering);
        if (paintContext.applyClipMaskAndFilterIfNecessary() && !LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintContext.paintInfo().context, m_layoutSVGShape, paintContext.paintInfo().phase, LayoutPoint())) {
            LayoutObjectDrawingRecorder recorder(paintContext.paintInfo().context, m_layoutSVGShape, paintContext.paintInfo().phase, boundingBox, LayoutPoint());
            const SVGComputedStyle& svgStyle = m_layoutSVGShape.style()->svgStyle();

            bool shouldAntiAlias = svgStyle.shapeRendering() != SR_CRISPEDGES;

            for (int i = 0; i < 3; i++) {
                switch (svgStyle.paintOrderType(i)) {
                case PT_FILL: {
                    SkPaint fillPaint;
                    if (!SVGPaintContext::paintForLayoutObject(paintContext.paintInfo(), m_layoutSVGShape.styleRef(), m_layoutSVGShape, ApplyToFillMode, fillPaint))
                        break;
                    fillPaint.setAntiAlias(shouldAntiAlias);
                    fillShape(paintContext.paintInfo().context, fillPaint, fillRuleFromStyle(paintContext.paintInfo(), svgStyle));
                    break;
                }
                case PT_STROKE:
                    if (svgStyle.hasVisibleStroke()) {
                        GraphicsContextStateSaver stateSaver(paintContext.paintInfo().context, false);
                        AffineTransform nonScalingTransform;
                        const AffineTransform* additionalPaintServerTransform = 0;

                        if (m_layoutSVGShape.hasNonScalingStroke()) {
                            nonScalingTransform = m_layoutSVGShape.nonScalingStrokeTransform();
                            if (!setupNonScalingStrokeContext(nonScalingTransform, stateSaver))
                                return;

                            // Non-scaling stroke needs to reset the transform back to the host transform.
                            additionalPaintServerTransform = &nonScalingTransform;
                        }

                        SkPaint strokePaint;
                        if (!SVGPaintContext::paintForLayoutObject(paintContext.paintInfo(), m_layoutSVGShape.styleRef(), m_layoutSVGShape, ApplyToStrokeMode, strokePaint, additionalPaintServerTransform))
                            break;
                        strokePaint.setAntiAlias(shouldAntiAlias);

                        StrokeData strokeData;
                        SVGLayoutSupport::applyStrokeStyleToStrokeData(strokeData, m_layoutSVGShape.styleRef(), m_layoutSVGShape, m_layoutSVGShape.dashScaleFactor());
                        strokeData.setupPaint(&strokePaint);

                        strokeShape(paintContext.paintInfo().context, strokePaint);
                    }
                    break;
                case PT_MARKERS:
                    paintMarkers(paintContext.paintInfo(), boundingBox);
                    break;
                default:
                    ASSERT_NOT_REACHED();
                    break;
                }
            }
        }
    }

    if (m_layoutSVGShape.style()->outlineWidth()) {
        PaintInfo outlinePaintInfo(paintInfoBeforeFiltering);
        outlinePaintInfo.phase = PaintPhaseSelfOutlineOnly;
        ObjectPainter(m_layoutSVGShape).paintOutline(outlinePaintInfo, LayoutPoint(boundingBox.location()));
    }
}
예제 #24
0
void BitmapImage::draw(GraphicsContext* ctxt, const FloatRect& destRect, const FloatRect& srcRect, ColorSpace styleColorSpace, CompositeOperator compositeOp)
{
    startAnimation();

    RetainPtr<CGImageRef> image = frameAtIndex(m_currentFrame);
    if (!image) // If it's too early we won't have an image yet.
        return;

    if (mayFillWithSolidColor()) {
        fillWithSolidColor(ctxt, destRect, solidColor(), styleColorSpace, compositeOp);
        return;
    }

    float currHeight = CGImageGetHeight(image.get());
    if (currHeight <= srcRect.y())
        return;

    CGContextRef context = ctxt->platformContext();
    GraphicsContextStateSaver stateSaver(*ctxt);

    bool shouldUseSubimage = false;

    // If the source rect is a subportion of the image, then we compute an inflated destination rect that will hold the entire image
    // and then set a clip to the portion that we want to display.
    FloatRect adjustedDestRect = destRect;
    FloatSize selfSize = currentFrameSize();
    if (srcRect.size() != selfSize) {
        CGInterpolationQuality interpolationQuality = CGContextGetInterpolationQuality(context);
        // When the image is scaled using high-quality interpolation, we create a temporary CGImage
        // containing only the portion we want to display. We need to do this because high-quality
        // interpolation smoothes sharp edges, causing pixels from outside the source rect to bleed
        // into the destination rect. See <rdar://problem/6112909>.
        shouldUseSubimage = (interpolationQuality != kCGInterpolationNone) && (srcRect.size() != destRect.size() || !ctxt->getCTM().isIdentityOrTranslationOrFlipped());
        float xScale = srcRect.width() / destRect.width();
        float yScale = srcRect.height() / destRect.height();
        if (shouldUseSubimage) {
            FloatRect subimageRect = srcRect;
            float leftPadding = srcRect.x() - floorf(srcRect.x());
            float topPadding = srcRect.y() - floorf(srcRect.y());

            subimageRect.move(-leftPadding, -topPadding);
            adjustedDestRect.move(-leftPadding / xScale, -topPadding / yScale);

            subimageRect.setWidth(ceilf(subimageRect.width() + leftPadding));
            adjustedDestRect.setWidth(subimageRect.width() / xScale);

            subimageRect.setHeight(ceilf(subimageRect.height() + topPadding));
            adjustedDestRect.setHeight(subimageRect.height() / yScale);

            image.adoptCF(CGImageCreateWithImageInRect(image.get(), subimageRect));
            if (currHeight < srcRect.maxY()) {
                ASSERT(CGImageGetHeight(image.get()) == currHeight - CGRectIntegral(srcRect).origin.y);
                adjustedDestRect.setHeight(CGImageGetHeight(image.get()) / yScale);
            }
        } else {
            adjustedDestRect.setLocation(FloatPoint(destRect.x() - srcRect.x() / xScale, destRect.y() - srcRect.y() / yScale));
            adjustedDestRect.setSize(FloatSize(selfSize.width() / xScale, selfSize.height() / yScale));
        }

        if (!destRect.contains(adjustedDestRect))
            CGContextClipToRect(context, destRect);
    }

    // If the image is only partially loaded, then shrink the destination rect that we're drawing into accordingly.
    if (!shouldUseSubimage && currHeight < selfSize.height())
        adjustedDestRect.setHeight(adjustedDestRect.height() * currHeight / selfSize.height());

    ctxt->setCompositeOperation(compositeOp);

    // Flip the coords.
    CGContextScaleCTM(context, 1, -1);
    adjustedDestRect.setY(-adjustedDestRect.maxY());

    // Adjust the color space.
    image = imageWithColorSpace(image.get(), styleColorSpace);

    // Draw the image.
    CGContextDrawImage(context, adjustedDestRect, image.get());

    stateSaver.restore();

    if (imageObserver())
        imageObserver()->didDraw(this);
}