renderthememac.mm

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    float fontScale = style->fontSize() / baseFontSize;

    style->resetPadding();
    style->setBorderRadius(IntSize(int(baseBorderRadius + fontScale - 1), int(baseBorderRadius + fontScale - 1))); // FIXME: Round up?

    const int minHeight = 15;
    style->setMinHeight(Length(minHeight, Fixed));
    
    style->setLineHeight(RenderStyle::initialLineHeight());
}

void RenderThemeMac::setPopupButtonCellState(const RenderObject* o, const IntRect& r)
{
    NSPopUpButtonCell* popupButton = this->popupButton();

    // Set the control size based off the rectangle we're painting into.
    setControlSize(popupButton, popupButtonSizes(), r.size(), o->style()->effectiveZoom());

    // Update the various states we respond to.
    updateCheckedState(popupButton, o);
    updateEnabledState(popupButton, o);
    updatePressedState(popupButton, o);
    updateFocusedState(popupButton, o);
}

const IntSize* RenderThemeMac::menuListSizes() const
{
    static const IntSize sizes[3] = { IntSize(9, 0), IntSize(5, 0), IntSize(0, 0) };
    return sizes;
}

int RenderThemeMac::minimumMenuListSize(RenderStyle* style) const
{
    return sizeForSystemFont(style, menuListSizes()).width();
}

const int trackWidth = 5;
const int trackRadius = 2;

void RenderThemeMac::adjustSliderTrackStyle(CSSStyleSelector*, RenderStyle* style, Element*) const
{
    style->setBoxShadow(0);
}

bool RenderThemeMac::paintSliderTrack(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
{
    IntRect bounds = r;
    float zoomLevel = o->style()->effectiveZoom();
    float zoomedTrackWidth = trackWidth * zoomLevel;

    if (o->style()->appearance() ==  SliderHorizontalPart || o->style()->appearance() ==  MediaSliderPart) {
        bounds.setHeight(zoomedTrackWidth);
        bounds.setY(r.y() + r.height() / 2 - zoomedTrackWidth / 2);
    } else if (o->style()->appearance() == SliderVerticalPart) {
        bounds.setWidth(zoomedTrackWidth);
        bounds.setX(r.x() + r.width() / 2 - zoomedTrackWidth / 2);
    }

    LocalCurrentGraphicsContext localContext(paintInfo.context);
    CGContextRef context = paintInfo.context->platformContext();
    RetainPtr<CGColorSpaceRef> cspace(AdoptCF, CGColorSpaceCreateDeviceRGB());

    paintInfo.context->save();
    CGContextClipToRect(context, bounds);

    struct CGFunctionCallbacks mainCallbacks = { 0, TrackGradientInterpolate, NULL };
    RetainPtr<CGFunctionRef> mainFunction(AdoptCF, CGFunctionCreate(NULL, 1, NULL, 4, NULL, &mainCallbacks));
    RetainPtr<CGShadingRef> mainShading;
    if (o->style()->appearance() == SliderVerticalPart)
        mainShading.adoptCF(CGShadingCreateAxial(cspace.get(), CGPointMake(bounds.x(),  bounds.bottom()), CGPointMake(bounds.right(), bounds.bottom()), mainFunction.get(), false, false));
    else
        mainShading.adoptCF(CGShadingCreateAxial(cspace.get(), CGPointMake(bounds.x(),  bounds.y()), CGPointMake(bounds.x(), bounds.bottom()), mainFunction.get(), false, false));

    IntSize radius(trackRadius, trackRadius);
    paintInfo.context->addRoundedRectClip(bounds,
        radius, radius,
        radius, radius);
    CGContextDrawShading(context, mainShading.get());
    paintInfo.context->restore();
    
    return false;
}

void RenderThemeMac::adjustSliderThumbStyle(CSSStyleSelector*, RenderStyle* style, Element*) const
{
    style->setBoxShadow(0);
}

const float verticalSliderHeightPadding = 0.1f;

bool RenderThemeMac::paintSliderThumb(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
{
    ASSERT(o->parent()->isSlider());

    NSSliderCell* sliderThumbCell = o->style()->appearance() == SliderThumbVerticalPart
        ? sliderThumbVertical()
        : sliderThumbHorizontal();

    LocalCurrentGraphicsContext localContext(paintInfo.context);

    // Update the various states we respond to.
    updateEnabledState(sliderThumbCell, o->parent());
    updateFocusedState(sliderThumbCell, o->parent());

    // Update the pressed state using the NSCell tracking methods, since that's how NSSliderCell keeps track of it.
    bool oldPressed;
    if (o->style()->appearance() == SliderThumbVerticalPart)
        oldPressed = m_isSliderThumbVerticalPressed;
    else
        oldPressed = m_isSliderThumbHorizontalPressed;

    bool pressed = static_cast<RenderSlider*>(o->parent())->inDragMode();

    if (o->style()->appearance() == SliderThumbVerticalPart)
        m_isSliderThumbVerticalPressed = pressed;
    else
        m_isSliderThumbHorizontalPressed = pressed;

    if (pressed != oldPressed) {
        if (pressed)
            [sliderThumbCell startTrackingAt:NSPoint() inView:nil];
        else
            [sliderThumbCell stopTracking:NSPoint() at:NSPoint() inView:nil mouseIsUp:YES];
    }

    FloatRect bounds = r;
    // Make the height of the vertical slider slightly larger so NSSliderCell will draw a vertical slider.
    if (o->style()->appearance() == SliderThumbVerticalPart)
        bounds.setHeight(bounds.height() + verticalSliderHeightPadding * o->style()->effectiveZoom());

    paintInfo.context->save();
    float zoomLevel = o->style()->effectiveZoom();
    
    FloatRect unzoomedRect = bounds;
    if (zoomLevel != 1.0f) {
        unzoomedRect.setWidth(unzoomedRect.width() / zoomLevel);
        unzoomedRect.setHeight(unzoomedRect.height() / zoomLevel);
        paintInfo.context->translate(unzoomedRect.x(), unzoomedRect.y());
        paintInfo.context->scale(FloatSize(zoomLevel, zoomLevel));
        paintInfo.context->translate(-unzoomedRect.x(), -unzoomedRect.y());
    }

    [sliderThumbCell drawWithFrame:unzoomedRect inView:o->view()->frameView()->documentView()];
    [sliderThumbCell setControlView:nil];

    paintInfo.context->restore();

    return false;
}

bool RenderThemeMac::paintSearchField(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
{
    NSSearchFieldCell* search = this->search();
    LocalCurrentGraphicsContext localContext(paintInfo.context);

    setSearchCellState(o, r);

    paintInfo.context->save();

    float zoomLevel = o->style()->effectiveZoom();

    IntRect unzoomedRect = r;
    
    if (zoomLevel != 1.0f) {
        unzoomedRect.setWidth(unzoomedRect.width() / zoomLevel);
        unzoomedRect.setHeight(unzoomedRect.height() / zoomLevel);
        paintInfo.context->translate(unzoomedRect.x(), unzoomedRect.y());
        paintInfo.context->scale(FloatSize(zoomLevel, zoomLevel));
        paintInfo.context->translate(-unzoomedRect.x(), -unzoomedRect.y());
    }

    // Set the search button to nil before drawing.  Then reset it so we can draw it later.
    [search setSearchButtonCell:nil];

    [search drawWithFrame:NSRect(unzoomedRect) inView:o->view()->frameView()->documentView()];
#ifdef BUILDING_ON_TIGER
    if ([search showsFirstResponder])
        wkDrawTextFieldCellFocusRing(search, NSRect(unzoomedRect));
#endif

    [search setControlView:nil];
    [search resetSearchButtonCell];

    paintInfo.context->restore();

    return false;
}

void RenderThemeMac::setSearchCellState(RenderObject* o, const IntRect&)
{
    NSSearchFieldCell* search = this->search();

    [search setControlSize:controlSizeForFont(o->style())];

    // Update the various states we respond to.
    updateEnabledState(search, o);
    updateFocusedState(search, o);
}

const IntSize* RenderThemeMac::searchFieldSizes() const
{
    static const IntSize sizes[3] = { IntSize(0, 22), IntSize(0, 19), IntSize(0, 17) };
    return sizes;
}

void RenderThemeMac::setSearchFieldSize(RenderStyle* style) const
{
    // If the width and height are both specified, then we have nothing to do.
    if (!style->width().isIntrinsicOrAuto() && !style->height().isAuto())
        return;
    
    // Use the font size to determine the intrinsic width of the control.
    setSizeFromFont(style, searchFieldSizes());
}

void RenderThemeMac::adjustSearchFieldStyle(CSSStyleSelector* selector, RenderStyle* style, Element*) const
{
    // Override border.
    style->resetBorder();
    const short borderWidth = 2 * style->effectiveZoom();
    style->setBorderLeftWidth(borderWidth);
    style->setBorderLeftStyle(INSET);
    style->setBorderRightWidth(borderWidth);
    style->setBorderRightStyle(INSET);
    style->setBorderBottomWidth(borderWidth);
    style->setBorderBottomStyle(INSET);
    style->setBorderTopWidth(borderWidth);
    style->setBorderTopStyle(INSET);    
    
    // Override height.
    style->setHeight(Length(Auto));
    setSearchFieldSize(style);
    
    // Override padding size to match AppKit text positioning.
    const int padding = 1 * style->effectiveZoom();
    style->setPaddingLeft(Length(padding, Fixed));
    style->setPaddingRight(Length(padding, Fixed));
    style->setPaddingTop(Length(padding, Fixed));
    style->setPaddingBottom(Length(padding, Fixed));
    
    NSControlSize controlSize = controlSizeForFont(style);
    setFontFromControlSize(selector, style, controlSize);

    style->setBoxShadow(0);
}

bool RenderThemeMac::paintSearchFieldCancelButton(RenderObject* o, const RenderObject::PaintInfo& paintInfo, const IntRect& r)
{
    Node* input = o->node()->shadowAncestorNode();
    if (!input->renderer()->isBox())
        return false;

    setSearchCellState(input->renderer(), r);

    NSSearchFieldCell* search = this->search();

    updatePressedState([search cancelButtonCell], o);

    paintInfo.context->save();

    float zoomLevel = o->style()->effectiveZoom();

    FloatRect localBounds = [search cancelButtonRectForBounds:NSRect(input->renderBox()->borderBoxRect())];
    localBounds = convertToPaintingRect(input->renderer(), o, localBounds, r);

    FloatRect unzoomedRect(localBounds);
    if (zoomLevel != 1.0f) {
        unzoomedRect.setWidth(unzoomedRect.width() / zoomLevel);
        unzoomedRect.setHeight(unzoomedRect.height() / zoomLevel);
        paintInfo.context->translate(unzoomedRect.x(), unzoomedRect.y());
        paintInfo.context->scale(FloatSize(zoomLevel, zoomLevel));
        paintInfo.context->translate(-unzoomedRect.x(), -unzoomedRect.y());
    }

    [[search cancelButtonCell] drawWithFrame:unzoomedRect inView:o->view()->frameView()->documentView()];
    [[search cancelButtonCell] setControlView:nil];

    paintInfo.context->restore();
    return false;
}

const IntSize* RenderThemeMac::cancelButtonSizes() const
{
    static const IntSize sizes[3] = { IntSize(16, 13), IntSize(13, 11), IntSize(13, 9) };
    return sizes;
}

void RenderThemeMac::adjustSearchFieldCancelButtonStyle(CSSStyleSelector*, RenderStyle* style, Element*) const
{
    IntSize size = sizeForSystemFont(style, cancelButtonSizes());
    style->setWidth(Length(size.width(), Fixed));
    style->setHeight(Length(size.height(), Fixed));
    style->setBoxShadow(0);
}

const IntSize* RenderThemeMac::resultsButtonSizes() const
{
    static const IntSize sizes[3] = { IntSize(19, 13), IntSize(17, 11), IntSize(17, 9) };
    return sizes;
}

const int emptyResultsOffset = 9;
void RenderThemeMac::adjustSearchFieldDecorationStyle(CSSStyleSelector*, RenderStyle* style, Element*) const
{
    IntSize size = sizeForSystemFont(style, resultsButtonSizes());
    style->setWidth(Length(size.width() - emptyResultsOffset, Fixed));
    style->setHeight(Length(size.height(), Fixed));
    style->setBoxShadow(0);
}

bool RenderThemeMac::paintSearchFieldDecoration(RenderObject*, const RenderObject::PaintInfo&, const IntRect&)
{
    return false;
}

void RenderThemeMac::adjustSearchFieldResultsDecorationStyle(CSSStyleSelector*, RenderStyle* style, Element*) const
{
    IntSize size = sizeForSystemFont(style, resultsButtonSizes());
    style->setWidth(Length(size.width(), Fixed));
    style->setHeight(Length(size.height(), Fixed));
    style->setBoxShadow(0);
}

bool RenderThemeMac::paintSearchFieldResultsDecoration(RenderObject* o, const RenderObject::PaintInfo&, const IntRect& r)
{
    Node* input = o->node()->shadowAncestorNode();
    if (!input->renderer()->isBox())
        return false;

    setSearchCellState(input->renderer(), r);

    NSSearchFieldCell* search = this->search();

    if ([search searchMenuTemplate] != nil)
        [search setSearchMenuTemplate:nil];

    FloatRect localBounds = [search searchButtonRectForBounds:NSRect(input->renderBox()->borderBoxRect())];