IntSize DrawingBuffer::adjustSize(const IntSize& desiredSize, const IntSize& curSize, int maxTextureSize)
{
IntSize adjustedSize = desiredSize;
// Clamp if the desired size is greater than the maximum texture size for the device.
if (adjustedSize.height() > maxTextureSize)
adjustedSize.setHeight(maxTextureSize);
if (adjustedSize.width() > maxTextureSize)
adjustedSize.setWidth(maxTextureSize);
return adjustedSize;
}
static inline IntSize outsetSizeForBlur(float stdDeviation)
{
unsigned kernelSizeX = 0;
unsigned kernelSizeY = 0;
FEGaussianBlur::calculateUnscaledKernelSize(kernelSizeX, kernelSizeY, stdDeviation, stdDeviation);
IntSize outset;
// We take the half kernel size and multiply it with three, because we run box blur three times.
outset.setWidth(3 * kernelSizeX * 0.5f);
outset.setHeight(3 * kernelSizeY * 0.5f);
return outset;
}
ViewportAttributes computeViewportAttributes(ViewportArguments args, int desktopWidth, int deviceWidth, int deviceHeight, float devicePixelRatio, IntSize visibleViewport)
{
#if PLATFORM(IOS)
// FIXME: This should probably be fixed elsewhere on iOS. iOS may only use computeViewportAttributes for tests.
CGSize screenSize = wkGetViewportScreenSize();
visibleViewport.setWidth(screenSize.width);
visibleViewport.setHeight(screenSize.height);
#endif
FloatSize initialViewportSize = convertToUserSpace(visibleViewport, devicePixelRatio);
FloatSize deviceSize = convertToUserSpace(FloatSize(deviceWidth, deviceHeight), devicePixelRatio);
return args.resolve(initialViewportSize, deviceSize, desktopWidth);
}
void clampImageBufferSizeToViewport(FrameView* frameView, IntSize& size)
{
if (!frameView)
return;
int viewWidth = frameView->visibleWidth();
int viewHeight = frameView->visibleHeight();
if (size.width() > viewWidth)
size.setWidth(viewWidth);
if (size.height() > viewHeight)
size.setHeight(viewHeight);
}
void ScrollView::setScrollOffset(const IntPoint& offset)
{
int horizontalOffset = offset.x();
int verticalOffset = offset.y();
if (constrainsScrollingToContentEdge()) {
horizontalOffset = max(min(horizontalOffset, contentsWidth() - visibleWidth()), 0);
verticalOffset = max(min(verticalOffset, contentsHeight() - visibleHeight()), 0);
}
IntSize newOffset = m_scrollOffset;
newOffset.setWidth(horizontalOffset - m_scrollOrigin.x());
newOffset.setHeight(verticalOffset - m_scrollOrigin.y());
scrollTo(newOffset);
}
PassRefPtr<ImageData> CanvasRenderingContext2D::createImageData(float sw, float sh) const
{
FloatSize unscaledSize(sw, sh);
IntSize scaledSize;
if (m_canvas)
scaledSize = m_canvas->convertLogicalToDevice(unscaledSize);
else
scaledSize = IntSize(static_cast<int>(ceilf(sw)), static_cast<int>(ceilf(sh)));
if (scaledSize.width() < 1)
scaledSize.setWidth(1);
if (scaledSize.height() < 1)
scaledSize.setHeight(1);
return createEmptyImageData(scaledSize);
}
PassRefPtr<ImageData> CanvasRenderingContext2D::createImageData(float sw, float sh, ExceptionCode& ec) const
{
ec = 0;
if (!isfinite(sw) || !isfinite(sh)) {
ec = NOT_SUPPORTED_ERR;
return 0;
}
FloatSize unscaledSize(sw, sh);
IntSize scaledSize = canvas()->convertLogicalToDevice(unscaledSize);
if (scaledSize.width() < 1)
scaledSize.setWidth(1);
if (scaledSize.height() < 1)
scaledSize.setHeight(1);
return createEmptyImageData(scaledSize);
}
void clampImageBufferSizeToViewport(RenderObject* object, IntSize& size)
{
if (!object || !object->isRenderView())
return;
RenderView* view = static_cast<RenderView*>(object);
if (!view->frameView())
return;
int viewWidth = view->frameView()->visibleWidth();
int viewHeight = view->frameView()->visibleHeight();
if (size.width() > viewWidth)
size.setWidth(viewWidth);
if (size.height() > viewHeight)
size.setHeight(viewHeight);
}
void RenderTheme::adjustRadioStyleUsingFallbackTheme(RenderStyle* style, Element*) const
{
// If the width and height are both specified, then we have nothing to do.
if (!style->width().isIntrinsicOrAuto() && !style->height().isAuto())
return;
IntSize size = WebKit::Platform::current()->fallbackThemeEngine()->getSize(WebKit::WebFallbackThemeEngine::PartRadio);
float zoomLevel = style->effectiveZoom();
size.setWidth(size.width() * zoomLevel);
size.setHeight(size.height() * zoomLevel);
setSizeIfAuto(style, size);
// padding - not honored by WinIE, needs to be removed.
style->resetPadding();
// border - honored by WinIE, but looks terrible (just paints in the control box and turns off the Windows XP theme)
// for now, we will not honor it.
style->resetBorder();
}
IntSize ScrollAnchor::computeAdjustment() const {
// The anchor node can report fractional positions, but it is DIP-snapped when
// painting (crbug.com/610805), so we must round the offsets to determine the
// visual delta. If we scroll by the delta in LayoutUnits, the snapping of the
// anchor node may round differently from the snapping of the scroll position.
// (For example, anchor moving from 2.4px -> 2.6px is really 2px -> 3px, so we
// should scroll by 1px instead of 0.2px.) This is true regardless of whether
// the ScrollableArea actually uses fractional scroll positions.
IntSize delta = roundedIntSize(computeRelativeOffset(m_anchorObject,
m_scroller, m_corner)) -
roundedIntSize(m_savedRelativeOffset);
// Only adjust on the block layout axis.
if (scrollerLayoutBox(m_scroller)->isHorizontalWritingMode())
delta.setWidth(0);
else
delta.setHeight(0);
return delta;
}
IntSize FEGaussianBlur::calculateUnscaledKernelSize(const FloatPoint& std)
{
ASSERT(std.x() >= 0 && std.y() >= 0);
IntSize kernelSize;
// Limit the kernel size to 1000. A bigger radius won't make a big difference for the result image but
// inflates the absolute paint rect to much. This is compatible with Firefox' behavior.
if (std.x()) {
int size = std::max<unsigned>(2, static_cast<unsigned>(floorf(std.x() * gaussianKernelFactor() + 0.5f)));
kernelSize.setWidth(std::min(size, gMaxKernelSize));
}
if (std.y()) {
int size = std::max<unsigned>(2, static_cast<unsigned>(floorf(std.y() * gaussianKernelFactor() + 0.5f)));
kernelSize.setHeight(std::min(size, gMaxKernelSize));
}
return kernelSize;
}
void ScrollView::valueChanged(Scrollbar* scrollbar)
{
// Figure out if we really moved.
IntSize newOffset = m_scrollOffset;
if (scrollbar) {
if (scrollbar->orientation() == HorizontalScrollbar)
newOffset.setWidth(scrollbar->value());
else if (scrollbar->orientation() == VerticalScrollbar)
newOffset.setHeight(scrollbar->value());
}
IntSize scrollDelta = newOffset - m_scrollOffset;
if (scrollDelta == IntSize())
return;
m_scrollOffset = newOffset;
if (scrollbarsSuppressed())
return;
scrollContents(scrollDelta);
}
void ScrollView::ScrollViewPrivate::valueChanged(Scrollbar* bar)
{
// Figure out if we really moved.
IntSize newOffset = m_scrollOffset;
if (bar) {
if (bar == m_hBar)
newOffset.setWidth(bar->value());
else if (bar == m_vBar)
newOffset.setHeight(bar->value());
}
IntSize scrollDelta = newOffset - m_scrollOffset;
if (scrollDelta == IntSize())
return;
m_scrollOffset = newOffset;
if (m_scrollbarsSuppressed)
return;
static_cast<FrameView*>(m_view)->frame()->sendScrollEvent();
scrollBackingStore(scrollDelta);
}
void Gradient::adjustParametersForTiledDrawing(IntSize& size, FloatRect& srcRect)
{
if (m_radial)
return;
if (srcRect.isEmpty())
return;
if (m_p0.x() == m_p1.x()) {
size.setWidth(1);
srcRect.setWidth(1);
srcRect.setX(0);
return;
}
if (m_p0.y() != m_p1.y())
return;
size.setHeight(1);
srcRect.setHeight(1);
srcRect.setY(0);
}
static void adjustmentChanged(GtkAdjustment* adjustment, gpointer _that)
{
ScrollView* that = reinterpret_cast<ScrollView*>(_that);
// Figure out if we really moved.
IntSize newOffset = that->scrollOffset();
if (adjustment == that->m_horizontalAdjustment)
newOffset.setWidth(static_cast<int>(gtk_adjustment_get_value(adjustment)));
else if (adjustment == that->m_verticalAdjustment)
newOffset.setHeight(static_cast<int>(gtk_adjustment_get_value(adjustment)));
IntSize scrollDelta = newOffset - that->scrollOffset();
if (scrollDelta == IntSize())
return;
that->setScrollOffset(newOffset);
if (that->scrollbarsSuppressed())
return;
that->scrollContents(scrollDelta);
}
IntRect ScrollbarThemeWx::forwardButtonRect(Scrollbar* scrollbar, ScrollbarPart part, bool)
{
// FIXME: Handling this case is needed when there are two sets of arrow buttons
// on Mac, one at the top and one at the bottom.
if (part == ForwardButtonStartPart)
return IntRect();
IntSize size = buttonSize(scrollbar);
int x, y;
if (scrollbar->orientation() == HorizontalScrollbar) {
#ifdef __WXMAC__
size.setWidth(size.width() + cMacButtonOverlap);
#endif
x = scrollbar->x() + scrollbar->width() - size.width();
y = scrollbar->y();
} else {
x = scrollbar->x();
#ifdef __WXMAC__
size.setHeight(size.height() + cMacButtonOverlap);
#endif
y = scrollbar->y() + scrollbar->height() - size.height();
}
return IntRect(x, y, size.width(), size.height());
}
DragImageRef WebDragClient::createDragImageForLink(KURL& url, const String& inLabel, Frame* frame)
{
// This is more or less an exact match for the Mac OS X code.
const Font* labelFont;
const Font* urlFont;
if (frame->settings() && frame->settings()->fontRenderingMode() == AlternateRenderingMode) {
static const Font alternateRenderingModeLabelFont = dragLabelFont(DRAG_LINK_LABEL_FONT_SIZE, true, AlternateRenderingMode);
static const Font alternateRenderingModeURLFont = dragLabelFont(DRAG_LINK_URL_FONT_SIZE, false, AlternateRenderingMode);
labelFont = &alternateRenderingModeLabelFont;
urlFont = &alternateRenderingModeURLFont;
} else {
static const Font normalRenderingModeLabelFont = dragLabelFont(DRAG_LINK_LABEL_FONT_SIZE, true, NormalRenderingMode);
static const Font normalRenderingModeURLFont = dragLabelFont(DRAG_LINK_URL_FONT_SIZE, false, NormalRenderingMode);
labelFont = &normalRenderingModeLabelFont;
urlFont = &normalRenderingModeURLFont;
}
bool drawURLString = true;
bool clipURLString = false;
bool clipLabelString = false;
String urlString = url.string();
String label = inLabel;
if (label.isEmpty()) {
drawURLString = false;
label = urlString;
}
//First step in drawing the link drag image width
TextRun labelRun(label.impl());
TextRun urlRun(urlString.impl());
IntSize labelSize(labelFont->width(labelRun), labelFont->ascent() + labelFont->descent());
if (labelSize.width() > MAX_DRAG_LABEL_STRING_WIDTH){
labelSize.setWidth(MAX_DRAG_LABEL_STRING_WIDTH);
clipLabelString = true;
}
IntSize urlStringSize;
IntSize imageSize(labelSize.width() + DRAG_LABEL_BORDER_X * 2,
labelSize.height() + DRAG_LABEL_BORDER_Y * 2);
if (drawURLString) {
urlStringSize.setWidth(urlFont->width(urlRun));
urlStringSize.setHeight(urlFont->ascent() + urlFont->descent());
imageSize.setHeight(imageSize.height() + urlStringSize.height());
if (urlStringSize.width() > MAX_DRAG_LABEL_STRING_WIDTH) {
imageSize.setWidth(MAX_DRAG_LABEL_WIDTH);
clipURLString = true;
} else {
imageSize.setWidth(std::max(labelSize.width(), urlStringSize.width()) + DRAG_LABEL_BORDER_X * 2);
}
}
// We now know how big the image needs to be, so we create and
// fill the background
HBITMAP image = 0;
HDC dc = GetDC(0);
HDC workingDC = CreateCompatibleDC(dc);
if (!workingDC) {
ReleaseDC(0, dc);
return 0;
}
PlatformGraphicsContext* contextRef;
image = allocImage(workingDC, imageSize, &contextRef);
if (!image) {
DeleteDC(workingDC);
ReleaseDC(0, dc);
return 0;
}
::SelectObject(workingDC, image);
GraphicsContext context(contextRef);
// On Mac alpha is {0.7, 0.7, 0.7, 0.8}, however we can't control alpha
// for drag images on win, so we use 1
static const Color backgroundColor(140, 140, 140);
static const IntSize radii(DRAG_LABEL_RADIUS, DRAG_LABEL_RADIUS);
IntRect rect(0, 0, imageSize.width(), imageSize.height());
context.fillRoundedRect(rect, radii, radii, radii, radii, backgroundColor, DeviceColorSpace);
// Draw the text
static const Color topColor(0, 0, 0, 255); //original alpha = 0.75
static const Color bottomColor(255, 255, 255, 127); //original alpha = 0.5
if (drawURLString) {
if (clipURLString)
urlString = StringTruncator::rightTruncate(urlString, imageSize.width() - (DRAG_LABEL_BORDER_X * 2.0f), *urlFont, false);
IntPoint textPos(DRAG_LABEL_BORDER_X, imageSize.height() - (DRAG_LABEL_BORDER_Y_OFFSET + urlFont->descent()));
WebCoreDrawDoubledTextAtPoint(context, urlString, textPos, *urlFont, topColor, bottomColor);
}
if (clipLabelString)
label = StringTruncator::rightTruncate(label, imageSize.width() - (DRAG_LABEL_BORDER_X * 2.0f), *labelFont, false);
IntPoint textPos(DRAG_LABEL_BORDER_X, DRAG_LABEL_BORDER_Y + labelFont->pixelSize());
WebCoreDrawDoubledTextAtPoint(context, label, textPos, *labelFont, topColor, bottomColor);
deallocContext(contextRef);
DeleteDC(workingDC);
ReleaseDC(0, dc);
return image;
}
PassOwnPtr<DragImage> DragImage::create(const KURL& url, const String& inLabel, const FontDescription& systemFont, float deviceScaleFactor)
{
const Font labelFont = deriveDragLabelFont(kDragLinkLabelFontSize, FontWeightBold, systemFont);
const Font urlFont = deriveDragLabelFont(kDragLinkUrlFontSize, FontWeightNormal, systemFont);
FontCachePurgePreventer fontCachePurgePreventer;
bool drawURLString = true;
bool clipURLString = false;
bool clipLabelString = false;
String urlString = url.string();
String label = inLabel.stripWhiteSpace();
if (label.isEmpty()) {
drawURLString = false;
label = urlString;
}
// First step is drawing the link drag image width.
TextRun labelRun(label.impl());
TextRun urlRun(urlString.impl());
IntSize labelSize(labelFont.width(labelRun), labelFont.fontMetrics().ascent() + labelFont.fontMetrics().descent());
if (labelSize.width() > kMaxDragLabelStringWidth) {
labelSize.setWidth(kMaxDragLabelStringWidth);
clipLabelString = true;
}
IntSize urlStringSize;
IntSize imageSize(labelSize.width() + kDragLabelBorderX * 2, labelSize.height() + kDragLabelBorderY * 2);
if (drawURLString) {
urlStringSize.setWidth(urlFont.width(urlRun));
urlStringSize.setHeight(urlFont.fontMetrics().ascent() + urlFont.fontMetrics().descent());
imageSize.setHeight(imageSize.height() + urlStringSize.height());
if (urlStringSize.width() > kMaxDragLabelStringWidth) {
imageSize.setWidth(kMaxDragLabelWidth);
clipURLString = true;
} else
imageSize.setWidth(std::max(labelSize.width(), urlStringSize.width()) + kDragLabelBorderX * 2);
}
// We now know how big the image needs to be, so we create and
// fill the background
IntSize scaledImageSize = imageSize;
scaledImageSize.scale(deviceScaleFactor);
OwnPtr<ImageBuffer> buffer(ImageBuffer::create(scaledImageSize));
if (!buffer)
return nullptr;
buffer->context()->scale(FloatSize(deviceScaleFactor, deviceScaleFactor));
const float DragLabelRadius = 5;
const IntSize radii(DragLabelRadius, DragLabelRadius);
IntRect rect(IntPoint(), imageSize);
const Color backgroundColor(140, 140, 140);
buffer->context()->fillRoundedRect(rect, radii, radii, radii, radii, backgroundColor);
// Draw the text
if (drawURLString) {
if (clipURLString)
urlString = StringTruncator::centerTruncate(urlString, imageSize.width() - (kDragLabelBorderX * 2.0f), urlFont, StringTruncator::EnableRoundingHacks);
IntPoint textPos(kDragLabelBorderX, imageSize.height() - (kLabelBorderYOffset + urlFont.fontMetrics().descent()));
TextRun textRun(urlString);
buffer->context()->drawText(urlFont, TextRunPaintInfo(textRun), textPos);
}
if (clipLabelString)
label = StringTruncator::rightTruncate(label, imageSize.width() - (kDragLabelBorderX * 2.0f), labelFont, StringTruncator::EnableRoundingHacks);
bool hasStrongDirectionality;
TextRun textRun = textRunWithDirectionality(label, hasStrongDirectionality);
IntPoint textPos(kDragLabelBorderX, kDragLabelBorderY + labelFont.fontDescription().computedPixelSize());
if (hasStrongDirectionality && textRun.direction() == RTL) {
float textWidth = urlFont.width(textRun);
int availableWidth = imageSize.width() - kDragLabelBorderX * 2;
textPos.setX(availableWidth - ceilf(textWidth));
}
buffer->context()->drawBidiText(urlFont, TextRunPaintInfo(textRun), textPos);
RefPtr<Image> image = buffer->copyImage();
return DragImage::create(image.get(), DoNotRespectImageOrientation, deviceScaleFactor);
}
void CCHeadsUpDisplay::draw()
{
GraphicsContext3D* context = m_layerRenderer->context();
if (!m_hudTexture)
m_hudTexture = ManagedTexture::create(m_layerRenderer->renderSurfaceTextureManager());
// Use a fullscreen texture only if we need to...
IntSize hudSize;
if (settings().showPlatformLayerTree) {
hudSize.setWidth(min(2048, m_layerRenderer->viewportWidth()));
hudSize.setHeight(min(2048, m_layerRenderer->viewportHeight()));
} else {
hudSize.setWidth(512);
hudSize.setHeight(128);
}
if (!m_hudTexture->reserve(hudSize, GraphicsContext3D::RGBA))
return;
// Render pixels into the texture.
PlatformCanvas canvas;
canvas.resize(hudSize);
{
PlatformCanvas::Painter painter(&canvas, PlatformCanvas::Painter::GrayscaleText);
drawHudContents(painter.context(), hudSize);
}
// Upload to GL.
{
PlatformCanvas::AutoLocker locker(&canvas);
m_hudTexture->bindTexture(context, m_layerRenderer->renderSurfaceTextureAllocator());
bool uploadedViaMap = false;
if (m_useMapSubForUploads) {
Extensions3DChromium* extensions = static_cast<Extensions3DChromium*>(context->getExtensions());
uint8_t* pixelDest = static_cast<uint8_t*>(extensions->mapTexSubImage2DCHROMIUM(GraphicsContext3D::TEXTURE_2D, 0, 0, 0, hudSize.width(), hudSize.height(), GraphicsContext3D::RGBA, GraphicsContext3D::UNSIGNED_BYTE, Extensions3DChromium::WRITE_ONLY));
if (pixelDest) {
uploadedViaMap = true;
memcpy(pixelDest, locker.pixels(), hudSize.width() * hudSize.height() * 4);
extensions->unmapTexSubImage2DCHROMIUM(pixelDest);
}
}
if (!uploadedViaMap) {
GLC(context, context->texImage2D(GraphicsContext3D::TEXTURE_2D, 0, GraphicsContext3D::RGBA, canvas.size().width(), canvas.size().height(), 0, GraphicsContext3D::RGBA, GraphicsContext3D::UNSIGNED_BYTE, locker.pixels()));
}
}
// Draw the HUD onto the default render surface.
const Program* program = m_layerRenderer->headsUpDisplayProgram();
ASSERT(program && program->initialized());
GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
m_hudTexture->bindTexture(context, m_layerRenderer->renderSurfaceTextureAllocator());
GLC(context, context->useProgram(program->program()));
GLC(context, context->uniform1i(program->fragmentShader().samplerLocation(), 0));
TransformationMatrix matrix;
matrix.translate3d(hudSize.width() * 0.5, hudSize.height() * 0.5, 0);
m_layerRenderer->drawTexturedQuad(matrix, hudSize.width(), hudSize.height(),
1.0f, m_layerRenderer->sharedGeometryQuad(), program->vertexShader().matrixLocation(),
program->fragmentShader().alphaLocation(),
-1);
m_hudTexture->unreserve();
}
DragImageRef createDragImageForLink(URL& url, const String& inLabel, FontRenderingMode fontRenderingMode)
{
// This is more or less an exact match for the Mac OS X code.
const Font* labelFont;
const Font* urlFont;
FontCachePurgePreventer fontCachePurgePreventer;
if (fontRenderingMode == AlternateRenderingMode) {
static const Font alternateRenderingModeLabelFont = dragLabelFont(DragLinkLabelFontsize, true, AlternateRenderingMode);
static const Font alternateRenderingModeURLFont = dragLabelFont(DragLinkUrlFontSize, false, AlternateRenderingMode);
labelFont = &alternateRenderingModeLabelFont;
urlFont = &alternateRenderingModeURLFont;
} else {
static const Font normalRenderingModeLabelFont = dragLabelFont(DragLinkLabelFontsize, true, NormalRenderingMode);
static const Font normalRenderingModeURLFont = dragLabelFont(DragLinkUrlFontSize, false, NormalRenderingMode);
labelFont = &normalRenderingModeLabelFont;
urlFont = &normalRenderingModeURLFont;
}
bool drawURLString = true;
bool clipURLString = false;
bool clipLabelString = false;
String urlString = url.string();
String label = inLabel;
if (label.isEmpty()) {
drawURLString = false;
label = urlString;
}
// First step in drawing the link drag image width.
TextRun labelRun(label.impl());
TextRun urlRun(urlString.impl());
IntSize labelSize(labelFont->width(labelRun), labelFont->fontMetrics().ascent() + labelFont->fontMetrics().descent());
if (labelSize.width() > MaxDragLabelStringWidth) {
labelSize.setWidth(MaxDragLabelStringWidth);
clipLabelString = true;
}
IntSize urlStringSize;
IntSize imageSize(labelSize.width() + DragLabelBorderX * 2, labelSize.height() + DragLabelBorderY * 2);
if (drawURLString) {
urlStringSize.setWidth(urlFont->width(urlRun));
urlStringSize.setHeight(urlFont->fontMetrics().ascent() + urlFont->fontMetrics().descent());
imageSize.setHeight(imageSize.height() + urlStringSize.height());
if (urlStringSize.width() > MaxDragLabelStringWidth) {
imageSize.setWidth(MaxDragLabelWidth);
clipURLString = true;
} else
imageSize.setWidth(std::max(labelSize.width(), urlStringSize.width()) + DragLabelBorderX * 2);
}
// We now know how big the image needs to be, so we create and
// fill the background
HWndDC dc(0);
auto workingDC = adoptGDIObject(::CreateCompatibleDC(dc));
if (!workingDC)
return 0;
PlatformGraphicsContext* contextRef;
auto image = allocImage(workingDC.get(), imageSize, &contextRef);
if (!image)
return 0;
::SelectObject(workingDC.get(), image.get());
GraphicsContext context(contextRef);
// On Mac alpha is {0.7, 0.7, 0.7, 0.8}, however we can't control alpha
// for drag images on win, so we use 1
static const Color backgroundColor(140, 140, 140);
static const IntSize radii(DragLabelRadius, DragLabelRadius);
IntRect rect(0, 0, imageSize.width(), imageSize.height());
context.fillRoundedRect(FloatRoundedRect(rect, radii, radii, radii, radii), backgroundColor, ColorSpaceDeviceRGB);
// Draw the text
static const Color topColor(0, 0, 0, 255); // original alpha = 0.75
static const Color bottomColor(255, 255, 255, 127); // original alpha = 0.5
if (drawURLString) {
if (clipURLString)
urlString = StringTruncator::rightTruncate(urlString, imageSize.width() - (DragLabelBorderX * 2.0f), *urlFont, StringTruncator::EnableRoundingHacks);
IntPoint textPos(DragLabelBorderX, imageSize.height() - (LabelBorderYOffset + urlFont->fontMetrics().descent()));
WebCoreDrawDoubledTextAtPoint(context, urlString, textPos, *urlFont, topColor, bottomColor);
}
if (clipLabelString)
label = StringTruncator::rightTruncate(label, imageSize.width() - (DragLabelBorderX * 2.0f), *labelFont, StringTruncator::EnableRoundingHacks);
IntPoint textPos(DragLabelBorderX, DragLabelBorderY + labelFont->pixelSize());
WebCoreDrawDoubledTextAtPoint(context, label, textPos, *labelFont, topColor, bottomColor);
deallocContext(contextRef);
return image.leak();
}
IntSize ScrollableArea::totalContentsSize() const
{
IntSize totalContentsSize = contentsSize();
totalContentsSize.setHeight(totalContentsSize.height() + headerHeight() + footerHeight());
return totalContentsSize;
}
void ChromeClient::widgetSizeChanged(const IntSize& oldWidgetSize, IntSize newSize)
{
#if USE(ACCELERATED_COMPOSITING)
AcceleratedCompositingContext* compositingContext = m_webView->priv->acceleratedCompositingContext.get();
if (compositingContext->enabled()) {
m_webView->priv->acceleratedCompositingContext->resizeRootLayer(newSize);
return;
}
#endif
// Grow the backing store by at least 1.5 times the current size. This prevents
// lots of unnecessary allocations during an opaque resize.
WidgetBackingStore* backingStore = m_webView->priv->backingStore.get();
if (backingStore && oldWidgetSize == newSize)
return;
if (backingStore) {
const IntSize& oldSize = backingStore->size();
if (newSize.width() > oldSize.width())
newSize.setWidth(std::max(newSize.width(), static_cast<int>(oldSize.width() * 1.5)));
if (newSize.height() > oldSize.height())
newSize.setHeight(std::max(newSize.height(), static_cast<int>(oldSize.height() * 1.5)));
}
// If we did not have a backing store before or if the backing store is growing, we need
// to reallocate a new one and set it up so that we don't see artifacts while resizing.
if (!backingStore
|| newSize.width() > backingStore->size().width()
|| newSize.height() > backingStore->size().height()) {
OwnPtr<WidgetBackingStore> newBackingStore = createBackingStore(GTK_WIDGET(m_webView), newSize);
RefPtr<cairo_t> cr = adoptRef(cairo_create(newBackingStore->cairoSurface()));
clearEverywhereInBackingStore(m_webView, cr.get());
// Now we copy the old backing store image over the new cleared surface to prevent
// annoying flashing as the widget grows. We do the "real" paint in a timeout
// since we don't want to block resizing too long.
if (backingStore) {
cairo_set_source_surface(cr.get(), backingStore->cairoSurface(), 0, 0);
cairo_rectangle(cr.get(), 0, 0, backingStore->size().width(), backingStore->size().height());
cairo_fill(cr.get());
}
m_webView->priv->backingStore = newBackingStore.release();
backingStore = m_webView->priv->backingStore.get();
} else if (oldWidgetSize.width() < newSize.width() || oldWidgetSize.height() < newSize.height()) {
// The widget is growing, but we did not need to create a new backing store.
// We should clear any old data outside of the old widget region.
RefPtr<cairo_t> cr = adoptRef(cairo_create(backingStore->cairoSurface()));
clipOutOldWidgetArea(cr.get(), oldWidgetSize, newSize);
clearEverywhereInBackingStore(m_webView, cr.get());
}
// We need to force a redraw and ignore the framerate cap.
m_lastDisplayTime = 0;
m_dirtyRegion.unite(IntRect(IntPoint(), backingStore->size()));
// WebCore timers by default have a lower priority which leads to more artifacts when opaque
// resize is on, thus we use g_timeout_add here to force a higher timeout priority.
if (!m_repaintSoonSourceId)
m_repaintSoonSourceId = g_timeout_add(0, reinterpret_cast<GSourceFunc>(repaintEverythingSoonTimeout), this);
}
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);
}
}
void ChromeClientJS::widgetSizeChanged(const IntSize& oldWidgetSize, IntSize newSize)
{
webkitTrace();
MainFrame& frame = (m_view->m_private->mainFrame->coreFrame()->mainFrame());
if(frame.view()) {
frame.view()->resize(newSize.width(),newSize.height());
frame.view()->adjustViewSize();
if(frame.view()->needsLayout())
frame.view()->layout();
}
if (m_view->m_private->acceleratedContext && m_view->m_private->acceleratedContext->enabled()) {
m_view->m_private->acceleratedContext->resizeRootLayer(newSize);
return;
}
if (m_view->m_private->backingStore && oldWidgetSize == newSize)
return;
if (m_view->m_private->backingStore) {
const IntSize& oldSize = m_view->m_private->backingStore->size();
if (newSize.width() > oldSize.width())
newSize.setWidth(std::max(newSize.width(), static_cast<int>(oldSize.width() * 1.5)));
if (newSize.height() > oldSize.height())
newSize.setHeight(std::max(newSize.height(), static_cast<int>(oldSize.height() * 1.5)));
}
// If we did not have a backing store before or if the backing store is growing, we need
// to reallocate a new one and set it up so that we don't see artifacts while resizing.
if (!m_view->m_private->backingStore
|| newSize.width() > m_view->m_private->backingStore->size().width()
|| newSize.height() > m_view->m_private->backingStore->size().height()) {
SDL_Surface *surface = SDL_CreateRGBSurface(SDL_SWSURFACE, newSize.width(), newSize.height(), 32, //SDL_HWSURFACE | SDL_HWPALETTE
0x00FF0000, /* Rmask */
0x0000FF00, /* Gmask */
0x000000FF, /* Bmask */
0xFF000000); /* Amask */
PassOwnPtr<WidgetBackingStore> newBackingStore = WebCore::WidgetBackingStoreCairo::create(surface, newSize);
RefPtr<cairo_t> cr = adoptRef(cairo_create(newBackingStore->cairoSurface()));
clearEverywhereInBackingStore(m_view, cr.get());
// Now we copy the old backing store image over the new cleared surface to prevent
// annoying flashing as the widget grows. We do the "real" paint in a timeout
// since we don't want to block resizing too long.
if (m_view->m_private->backingStore) {
cairo_set_source_surface(cr.get(), m_view->m_private->backingStore->cairoSurface(), 0, 0);
cairo_rectangle(cr.get(), 0, 0, m_view->m_private->backingStore->size().width(), m_view->m_private->backingStore->size().height());
cairo_fill(cr.get());
}
m_view->m_private->backingStore = newBackingStore;
} else if (oldWidgetSize.width() < newSize.width() || oldWidgetSize.height() < newSize.height()) {
// The widget is growing, but we did not need to create a new backing store.
// We should clear any old data outside of the old widget region.
RefPtr<cairo_t> cr = adoptRef(cairo_create(m_view->m_private->backingStore->cairoSurface()));
clipOutOldWidgetArea(cr.get(), oldWidgetSize, newSize);
clearEverywhereInBackingStore(m_view, cr.get());
}
// We need to force a redraw and ignore the framerate cap.
m_lastDisplayTime = 0;
m_dirtyRegion.unite(IntRect(IntPoint(), m_view->m_private->backingStore->size()));
// WebCore timers by default have a lower priority which leads to more artifacts when opaque
// resize is on
emscripten_async_call((void (*)(void *))(&repaintEverythingSoonTimeout), this, 0);
}