Ejemplo n.º 1
0
nsresult
nsSVGMarkerFrame::PaintMark(nsRenderingContext *aContext,
                            nsSVGPathGeometryFrame *aMarkedFrame,
                            nsSVGMark *aMark, float aStrokeWidth)
{
  // If the flag is set when we get here, it means this marker frame
  // has already been used painting the current mark, and the document
  // has a marker reference loop.
  if (mInUse)
    return NS_OK;

  AutoMarkerReferencer markerRef(this, aMarkedFrame);

  nsSVGMarkerElement *marker = static_cast<nsSVGMarkerElement*>(mContent);

  const nsSVGViewBoxRect viewBox = marker->GetViewBoxRect();

  if (viewBox.width <= 0.0f || viewBox.height <= 0.0f) {
    // We must disable rendering if the viewBox width or height are zero.
    return NS_OK;
  }

  mStrokeWidth = aStrokeWidth;
  mX = aMark->x;
  mY = aMark->y;
  mAutoAngle = aMark->angle;

  gfxContext *gfx = aContext->ThebesContext();

  if (GetStyleDisplay()->IsScrollableOverflow()) {
    gfx->Save();
    gfxRect clipRect =
      nsSVGUtils::GetClipRectForFrame(this, viewBox.x, viewBox.y,
                                      viewBox.width, viewBox.height);
    nsSVGUtils::SetClipRect(gfx, GetCanvasTM(nsISVGChildFrame::FOR_PAINTING),
                            clipRect);
  }

  for (nsIFrame* kid = mFrames.FirstChild(); kid;
       kid = kid->GetNextSibling()) {
    nsISVGChildFrame* SVGFrame = do_QueryFrame(kid);
    if (SVGFrame) {
      // The CTM of each frame referencing us may be different.
      SVGFrame->NotifySVGChanged(
                          nsISVGChildFrame::DO_NOT_NOTIFY_RENDERING_OBSERVERS |
                          nsISVGChildFrame::TRANSFORM_CHANGED);
      nsSVGUtils::PaintFrameWithEffects(aContext, nsnull, kid);
    }
  }

  if (GetStyleDisplay()->IsScrollableOverflow())
    gfx->Restore();

  return NS_OK;
}
Ejemplo n.º 2
0
//
// DidSetStyleContext
//
// When the style context changes, make sure that all of our image is up to date.
//
/* virtual */ void
nsImageBoxFrame::DidSetStyleContext(nsStyleContext* aOldStyleContext)
{
  nsLeafBoxFrame::DidSetStyleContext(aOldStyleContext);

  // Fetch our subrect.
  const nsStyleList* myList = GetStyleList();
  mSubRect = myList->mImageRegion; // before |mSuppressStyleCheck| test!

  if (mUseSrcAttr || mSuppressStyleCheck)
    return; // No more work required, since the image isn't specified by style.

  // If we're using a native theme implementation, we shouldn't draw anything.
  const nsStyleDisplay* disp = GetStyleDisplay();
  if (disp->mAppearance && nsBox::gTheme && 
      nsBox::gTheme->ThemeSupportsWidget(nsnull, this, disp->mAppearance))
    return;

  // If list-style-image changes, we have a new image.
  nsCOMPtr<nsIURI> oldURI, newURI;
  if (mImageRequest)
    mImageRequest->GetURI(getter_AddRefs(oldURI));
  if (myList->GetListStyleImage())
    myList->GetListStyleImage()->GetURI(getter_AddRefs(newURI));
  PRBool equal;
  if (newURI == oldURI ||   // handles null==null
      (newURI && oldURI &&
       NS_SUCCEEDED(newURI->Equals(oldURI, &equal)) && equal))
    return;

  UpdateImage();
} // DidSetStyleContext
Ejemplo n.º 3
0
NS_IMETHODIMP
nsSVGInnerSVGFrame::PaintSVG(nsRenderingContext *aContext,
                             const nsIntRect *aDirtyRect)
{
  gfxContextAutoSaveRestore autoSR;

  if (GetStyleDisplay()->IsScrollableOverflow()) {
    float x, y, width, height;
    static_cast<nsSVGSVGElement*>(mContent)->
      GetAnimatedLengthValues(&x, &y, &width, &height, nsnull);

    if (width <= 0 || height <= 0) {
      return NS_OK;
    }

    nsSVGContainerFrame *parent = static_cast<nsSVGContainerFrame*>(mParent);
    gfxMatrix clipTransform = parent->GetCanvasTM();

    gfxContext *gfx = aContext->ThebesContext();
    autoSR.SetContext(gfx);
    gfxRect clipRect =
      nsSVGUtils::GetClipRectForFrame(this, x, y, width, height);
    nsSVGUtils::SetClipRect(gfx, clipTransform, clipRect);
  }

  return nsSVGInnerSVGFrameBase::PaintSVG(aContext, aDirtyRect);
}
Ejemplo n.º 4
0
NS_IMETHODIMP
nsBox::GetBorder(nsMargin& aMargin)
{
  aMargin.SizeTo(0,0,0,0);
    
  const nsStyleDisplay* disp = GetStyleDisplay();
  if (disp->mAppearance && gTheme) {
    // Go to the theme for the border.
    nsPresContext *context = PresContext();
    if (gTheme->ThemeSupportsWidget(context, this, disp->mAppearance)) {
      nsIntMargin margin(0, 0, 0, 0);
      gTheme->GetWidgetBorder(context->DeviceContext(), this,
                              disp->mAppearance, &margin);
      aMargin.top = context->DevPixelsToAppUnits(margin.top);
      aMargin.right = context->DevPixelsToAppUnits(margin.right);
      aMargin.bottom = context->DevPixelsToAppUnits(margin.bottom);
      aMargin.left = context->DevPixelsToAppUnits(margin.left);
      return NS_OK;
    }
  }

  aMargin = GetStyleBorder()->GetActualBorder();

  return NS_OK;
}
Ejemplo n.º 5
0
nsSize
nsProgressFrame::ComputeAutoSize(nsRenderingContext *aRenderingContext,
                                 nsSize aCBSize, nscoord aAvailableWidth,
                                 nsSize aMargin, nsSize aBorder,
                                 nsSize aPadding, bool aShrinkWrap)
{
  float inflation =
    nsLayoutUtils::FontSizeInflationFor(this, aCBSize.width);
  nsRefPtr<nsFontMetrics> fontMet;
  NS_ENSURE_SUCCESS(nsLayoutUtils::GetFontMetricsForFrame(this,
                                                          getter_AddRefs(fontMet),
                                                          inflation),
                    nsSize(0, 0));

  nsSize autoSize;
  autoSize.height = autoSize.width = fontMet->Font().size; // 1em

  if (GetStyleDisplay()->mOrient == NS_STYLE_ORIENT_VERTICAL) {
    autoSize.height *= 10; // 10em
  } else {
    autoSize.width *= 10; // 10em
  }

  return autoSize;
}
Ejemplo n.º 6
0
NS_IMETHODIMP
nsComboboxControlFrame::BuildDisplayList(nsDisplayListBuilder*   aBuilder,
                                         const nsRect&           aDirtyRect,
                                         const nsDisplayListSet& aLists)
{
#ifdef NOISY
  printf("%p paint at (%d, %d, %d, %d)\n", this,
    aDirtyRect.x, aDirtyRect.y, aDirtyRect.width, aDirtyRect.height);
#endif

  if (aBuilder->IsForEventDelivery()) {
    // Don't allow children to receive events.
    // REVIEW: following old GetFrameForPoint
    nsresult rv = DisplayBorderBackgroundOutline(aBuilder, aLists);
    NS_ENSURE_SUCCESS(rv, rv);
  } else {
    // REVIEW: Our in-flow child frames are inline-level so they will paint in our
    // content list, so we don't need to mess with layers.
    nsresult rv = nsBlockFrame::BuildDisplayList(aBuilder, aDirtyRect, aLists);
    NS_ENSURE_SUCCESS(rv, rv);
  }

  nsPresContext *presContext = PresContext();
  const nsStyleDisplay *disp = GetStyleDisplay();
  if ((!IsThemed(disp) ||
       !presContext->GetTheme()->ThemeDrawsFocusForWidget(presContext, this, disp->mAppearance)) &&
      mDisplayFrame && IsVisibleForPainting(aBuilder)) {
    nsresult rv = aLists.Content()->AppendNewToTop(new (aBuilder)
                                                   nsDisplayComboboxFocus(this));
    NS_ENSURE_SUCCESS(rv, rv);
  }

  return DisplaySelectionOverlay(aBuilder, aLists);
}
Ejemplo n.º 7
0
NS_IMETHODIMP
nsBox::GetPadding(nsMargin& aMargin)
{
  const nsStyleDisplay *disp = GetStyleDisplay();
  if (disp->mAppearance && gTheme) {
    // Go to the theme for the padding.
    nsPresContext *context = PresContext();
    if (gTheme->ThemeSupportsWidget(context, this, disp->mAppearance)) {
      nsIntMargin margin(0, 0, 0, 0);
      PRBool useThemePadding;

      useThemePadding = gTheme->GetWidgetPadding(context->DeviceContext(),
                                                 this, disp->mAppearance,
                                                 &margin);
      if (useThemePadding) {
        aMargin.top = context->DevPixelsToAppUnits(margin.top);
        aMargin.right = context->DevPixelsToAppUnits(margin.right);
        aMargin.bottom = context->DevPixelsToAppUnits(margin.bottom);
        aMargin.left = context->DevPixelsToAppUnits(margin.left);
        return NS_OK;
      }
    }
  }

  aMargin.SizeTo(0,0,0,0);
  GetStylePadding()->GetPadding(aMargin);

  return NS_OK;
}
Ejemplo n.º 8
0
nscoord
nsMeterFrame::GetMinWidth(nsRenderingContext *aRenderingContext)
{
  nsRefPtr<nsFontMetrics> fontMet;
  NS_ENSURE_SUCCESS(
      nsLayoutUtils::GetFontMetricsForFrame(this, getter_AddRefs(fontMet)), 0);

  nscoord minWidth = fontMet->Font().size; // 1em

  if (GetStyleDisplay()->mOrient == NS_STYLE_ORIENT_AUTO ||
      GetStyleDisplay()->mOrient == NS_STYLE_ORIENT_HORIZONTAL) {
    // The orientation is horizontal
    minWidth *= 5; // 5em
  }

  return minWidth;
}
Ejemplo n.º 9
0
void
nsMeterFrame::ReflowBarFrame(nsIFrame*                aBarFrame,
                             nsPresContext*           aPresContext,
                             const nsHTMLReflowState& aReflowState,
                             nsReflowStatus&          aStatus)
{
  bool vertical = GetStyleDisplay()->mOrient == NS_STYLE_ORIENT_VERTICAL;
  nsHTMLReflowState reflowState(aPresContext, aReflowState, aBarFrame,
                                nsSize(aReflowState.ComputedWidth(),
                                       NS_UNCONSTRAINEDSIZE));
  nscoord size = vertical ? aReflowState.ComputedHeight()
                          : aReflowState.ComputedWidth();
  nscoord xoffset = aReflowState.mComputedBorderPadding.left;
  nscoord yoffset = aReflowState.mComputedBorderPadding.top;

  // NOTE: Introduce a new function getPosition in the content part ?
  double position, max, min, value;
  nsCOMPtr<nsIDOMHTMLMeterElement> meterElement =
    do_QueryInterface(mContent);

  meterElement->GetMax(&max);
  meterElement->GetMin(&min);
  meterElement->GetValue(&value);

  position = max - min;
  position = position != 0 ? (value - min) / position : 1;

  size = NSToCoordRound(size * position);

  if (!vertical && GetStyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL) {
    xoffset += aReflowState.ComputedWidth() - size;
  }

  // The bar position is *always* constrained.
  if (vertical) {
    // We want the bar to begin at the bottom.
    yoffset += aReflowState.ComputedHeight() - size;

    size -= reflowState.mComputedMargin.TopBottom() +
            reflowState.mComputedBorderPadding.TopBottom();
    size = std::max(size, 0);
    reflowState.SetComputedHeight(size);
  } else {
    size -= reflowState.mComputedMargin.LeftRight() +
            reflowState.mComputedBorderPadding.LeftRight();
    size = std::max(size, 0);
    reflowState.SetComputedWidth(size);
  }

  xoffset += reflowState.mComputedMargin.left;
  yoffset += reflowState.mComputedMargin.top;

  nsHTMLReflowMetrics barDesiredSize;
  ReflowChild(aBarFrame, aPresContext, barDesiredSize, reflowState, xoffset,
              yoffset, 0, aStatus);
  FinishReflowChild(aBarFrame, aPresContext, &reflowState, barDesiredSize,
                    xoffset, yoffset, 0);
}
Ejemplo n.º 10
0
float
nsSVGGeometryFrame::MaybeOptimizeOpacity(float aFillOrStrokeOpacity)
{
  float opacity = GetStyleDisplay()->mOpacity;
  if (opacity < 1 && nsSVGUtils::CanOptimizeOpacity(this)) {
    return aFillOrStrokeOpacity * opacity;
  }
  return aFillOrStrokeOpacity;
}
Ejemplo n.º 11
0
PRBool
nsBox::DoesClipChildren()
{
  const nsStyleDisplay* display = GetStyleDisplay();
  NS_ASSERTION((display->mOverflowY == NS_STYLE_OVERFLOW_CLIP) ==
               (display->mOverflowX == NS_STYLE_OVERFLOW_CLIP),
               "If one overflow is clip, the other should be too");
  return display->mOverflowX == NS_STYLE_OVERFLOW_CLIP;
}
Ejemplo n.º 12
0
void
nsImageBoxFrame::UpdateImage()
{
  if (mImageRequest) {
    mImageRequest->CancelAndForgetObserver(NS_ERROR_FAILURE);
    mImageRequest = nsnull;
  }

  // get the new image src
  nsAutoString src;
  mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::src, src);
  mUseSrcAttr = !src.IsEmpty();
  if (mUseSrcAttr) {
    nsIDocument* doc = mContent->GetDocument();
    if (!doc) {
      // No need to do anything here...
      return;
    }
    nsCOMPtr<nsIURI> baseURI = mContent->GetBaseURI();
    nsCOMPtr<nsIURI> uri;
    nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(uri),
                                              src,
                                              doc,
                                              baseURI);

    if (uri && nsContentUtils::CanLoadImage(uri, mContent, doc,
                                            mContent->NodePrincipal())) {
      nsContentUtils::LoadImage(uri, doc, mContent->NodePrincipal(),
                                doc->GetDocumentURI(), mListener, mLoadFlags,
                                getter_AddRefs(mImageRequest));
    }
  } else {
    // Only get the list-style-image if we aren't being drawn
    // by a native theme.
    PRUint8 appearance = GetStyleDisplay()->mAppearance;
    if (!(appearance && nsBox::gTheme && 
          nsBox::gTheme->ThemeSupportsWidget(nsnull, this, appearance))) {
      // get the list-style-image
      imgIRequest *styleRequest = GetStyleList()->GetListStyleImage();
      if (styleRequest) {
        styleRequest->Clone(mListener, getter_AddRefs(mImageRequest));
      }
    }
  }

  if (!mImageRequest) {
    // We have no image, so size to 0
    mIntrinsicSize.SizeTo(0, 0);
  } else {
    // We don't want discarding or decode-on-draw for xul images.
    mImageRequest->RequestDecode();
    mImageRequest->LockImage();
  }
}
Ejemplo n.º 13
0
bool
nsProgressFrame::ShouldUseNativeStyle() const
{
  // Use the native style if these conditions are satisfied:
  // - both frames use the native appearance;
  // - neither frame has author specified rules setting the border or the
  //   background.
  return GetStyleDisplay()->mAppearance == NS_THEME_PROGRESSBAR &&
         mBarDiv->GetPrimaryFrame()->GetStyleDisplay()->mAppearance == NS_THEME_PROGRESSBAR_CHUNK &&
         !PresContext()->HasAuthorSpecifiedRules(const_cast<nsProgressFrame*>(this),
                                                 NS_AUTHOR_SPECIFIED_BORDER | NS_AUTHOR_SPECIFIED_BACKGROUND) &&
         !PresContext()->HasAuthorSpecifiedRules(mBarDiv->GetPrimaryFrame(),
                                                 NS_AUTHOR_SPECIFIED_BORDER | NS_AUTHOR_SPECIFIED_BACKGROUND);
}
Ejemplo n.º 14
0
nscoord
nsProgressFrame::GetMinWidth(nsRenderingContext *aRenderingContext)
{
  nsRefPtr<nsFontMetrics> fontMet;
  NS_ENSURE_SUCCESS(
      nsLayoutUtils::GetFontMetricsForFrame(this, getter_AddRefs(fontMet)), 0);

  nscoord minWidth = fontMet->Font().size; // 1em

  if (GetStyleDisplay()->mOrient == NS_STYLE_ORIENT_HORIZONTAL) {
    minWidth *= 10; // 10em
  }

  return minWidth;
}
Ejemplo n.º 15
0
nsresult
nsFirstLetterFrame::CreateContinuationForFloatingParent(nsPresContext* aPresContext,
                                                        nsIFrame* aChild,
                                                        nsIFrame** aContinuation,
                                                        PRBool aIsFluid)
{
  NS_ASSERTION(GetStyleDisplay()->IsFloating(),
               "can only call this on floating first letter frames");
  NS_PRECONDITION(aContinuation, "bad args");

  *aContinuation = nsnull;
  nsresult rv = NS_OK;

  nsIPresShell* presShell = aPresContext->PresShell();
  nsPlaceholderFrame* placeholderFrame =
    presShell->FrameManager()->GetPlaceholderFrameFor(this);
  nsIFrame* parent = placeholderFrame->GetParent();

  nsIFrame* continuation;
  rv = presShell->FrameConstructor()->
    CreateContinuingFrame(aPresContext, aChild, parent, &continuation, aIsFluid);
  if (NS_FAILED(rv) || !continuation) {
    return rv;
  }

  // The continuation will have gotten the first letter style from it's
  // prev continuation, so we need to repair the style context so it
  // doesn't have the first letter styling.
  nsStyleContext* parentSC = this->GetStyleContext()->GetParent();
  if (parentSC) {
    nsRefPtr<nsStyleContext> newSC;
    newSC = presShell->StyleSet()->ResolveStyleForNonElement(parentSC);
    if (newSC) {
      continuation->SetStyleContext(newSC);
    }
  }

  //XXX Bidi may not be involved but we have to use the list name
  // nsGkAtoms::nextBidi because this is just like creating a continuation
  // except we have to insert it in a different place and we don't want a
  // reflow command to try to be issued.
  nsFrameList temp(continuation, continuation);
  rv = parent->InsertFrames(nsGkAtoms::nextBidi, placeholderFrame, temp);

  *aContinuation = continuation;
  return rv;
}
Ejemplo n.º 16
0
NS_IMETHODIMP
nsHTMLButtonControlFrame::BuildDisplayList(nsDisplayListBuilder*   aBuilder,
                                           const nsRect&           aDirtyRect,
                                           const nsDisplayListSet& aLists)
{
  nsDisplayList onTop;
  if (IsVisibleForPainting(aBuilder)) {
    nsresult rv = mRenderer.DisplayButton(aBuilder, aLists.BorderBackground(), &onTop);
    NS_ENSURE_SUCCESS(rv, rv);
  }
  
  nsDisplayListCollection set;
  // Do not allow the child subtree to receive events.
  if (!aBuilder->IsForEventDelivery()) {
    nsresult rv =
      BuildDisplayListForChild(aBuilder, mFrames.FirstChild(), aDirtyRect, set,
                               DISPLAY_CHILD_FORCE_PSEUDO_STACKING_CONTEXT);
    NS_ENSURE_SUCCESS(rv, rv);
    // That should put the display items in set.Content()
  }
  
  // Put the foreground outline and focus rects on top of the children
  set.Content()->AppendToTop(&onTop);

  // clips to our padding box for <input>s but not <button>s, unless
  // they have non-visible overflow..
  if (IsInput() || GetStyleDisplay()->mOverflowX != NS_STYLE_OVERFLOW_VISIBLE) {
    nsMargin border = GetStyleBorder()->GetActualBorder();
    nsRect rect(aBuilder->ToReferenceFrame(this), GetSize());
    rect.Deflate(border);
  
    nsresult rv = OverflowClip(aBuilder, set, aLists, rect);
    NS_ENSURE_SUCCESS(rv, rv);
  } else {
    set.MoveTo(aLists);
  }
  
  nsresult rv = DisplayOutline(aBuilder, aLists);
  NS_ENSURE_SUCCESS(rv, rv);

  // to draw border when selected in editor
  return DisplaySelectionOverlay(aBuilder, aLists);
}
Ejemplo n.º 17
0
nsSVGInnerSVGFrame::GetFrameForPoint(const nsPoint &aPoint)
{
  if (GetStyleDisplay()->IsScrollableOverflow()) {
    nsSVGElement *content = static_cast<nsSVGElement*>(mContent);
    nsSVGContainerFrame *parent = static_cast<nsSVGContainerFrame*>(mParent);

    float clipX, clipY, clipWidth, clipHeight;
    content->GetAnimatedLengthValues(&clipX, &clipY, &clipWidth, &clipHeight, nsnull);

    if (!nsSVGUtils::HitTestRect(parent->GetCanvasTM(),
                                 clipX, clipY, clipWidth, clipHeight,
                                 PresContext()->AppUnitsToDevPixels(aPoint.x),
                                 PresContext()->AppUnitsToDevPixels(aPoint.y))) {
      return nsnull;
    }
  }

  return nsSVGInnerSVGFrameBase::GetFrameForPoint(aPoint);
}
Ejemplo n.º 18
0
void
nsProgressFrame::ReflowBarFrame(nsIFrame*                aBarFrame,
                                nsPresContext*           aPresContext,
                                const nsHTMLReflowState& aReflowState,
                                nsReflowStatus&          aStatus)
{
  bool vertical = GetStyleDisplay()->mOrient == NS_STYLE_ORIENT_VERTICAL;
  nsHTMLReflowState reflowState(aPresContext, aReflowState, aBarFrame,
                                nsSize(aReflowState.ComputedWidth(),
                                       NS_UNCONSTRAINEDSIZE));
  nscoord size = vertical ? aReflowState.ComputedHeight()
                          : aReflowState.ComputedWidth();
  nscoord xoffset = aReflowState.mComputedBorderPadding.left;
  nscoord yoffset = aReflowState.mComputedBorderPadding.top;

  double position;
  nsCOMPtr<nsIDOMHTMLProgressElement> progressElement =
    do_QueryInterface(mContent);
  progressElement->GetPosition(&position);

  // Force the bar's size to match the current progress.
  // When indeterminate, the progress' size will be 100%.
  if (position >= 0.0) {
    size *= position;
  }

  if (!vertical && GetStyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL) {
    xoffset += aReflowState.ComputedWidth() - size;
  }

  // The bar size is fixed in these cases:
  // - the progress position is determined: the bar size is fixed according
  //   to it's value.
  // - the progress position is indeterminate and the bar appearance should be
  //   shown as native: the bar size is forced to 100%.
  // Otherwise (when the progress is indeterminate and the bar appearance isn't
  // native), the bar size isn't fixed and can be set by the author.
  if (position != -1 || ShouldUseNativeStyle()) {
    if (vertical) {
      // We want the bar to begin at the bottom.
      yoffset += aReflowState.ComputedHeight() - size;

      size -= reflowState.mComputedMargin.TopBottom() +
              reflowState.mComputedBorderPadding.TopBottom();
      size = NS_MAX(size, 0);
      reflowState.SetComputedHeight(size);
    } else {
      size -= reflowState.mComputedMargin.LeftRight() +
              reflowState.mComputedBorderPadding.LeftRight();
      size = NS_MAX(size, 0);
      reflowState.SetComputedWidth(size);
    }
  } else if (vertical) {
    // For vertical progress bars, we need to position the bar specificly when
    // the width isn't constrained (position == -1 and !ShouldUseNativeStyle())
    // because aReflowState.ComputedHeight() - size == 0.
    yoffset += aReflowState.ComputedHeight() - reflowState.ComputedHeight();
  }

  xoffset += reflowState.mComputedMargin.left;
  yoffset += reflowState.mComputedMargin.top;

  nsHTMLReflowMetrics barDesiredSize;
  ReflowChild(aBarFrame, aPresContext, barDesiredSize, reflowState, xoffset,
              yoffset, 0, aStatus);
  FinishReflowChild(aBarFrame, aPresContext, &reflowState, barDesiredSize,
                    xoffset, yoffset, 0);
}
Ejemplo n.º 19
0
NS_IMETHODIMP
nsSVGForeignObjectFrame::PaintSVG(nsSVGRenderState *aContext,
                                  const nsIntRect *aDirtyRect)
{
  if (IsDisabled())
    return NS_OK;

  nsIFrame* kid = GetFirstChild(nsnull);
  if (!kid)
    return NS_OK;

  gfxMatrix matrixForChildren = GetCanvasTMForChildren();
  gfxMatrix matrix = GetCanvasTM();

  nsRenderingContext *ctx = aContext->GetRenderingContext(this);

  if (!ctx || matrixForChildren.IsSingular()) {
    NS_WARNING("Can't render foreignObject element!");
    return NS_ERROR_FAILURE;
  }

  /* Check if we need to draw anything. */
  if (aDirtyRect) {
    PRInt32 appUnitsPerDevPx = PresContext()->AppUnitsPerDevPixel();
    if (!mRect.ToOutsidePixels(appUnitsPerDevPx).Intersects(*aDirtyRect))
      return NS_OK;
  }

  gfxContext *gfx = aContext->GetGfxContext();

  gfx->Save();

  if (GetStyleDisplay()->IsScrollableOverflow()) {
    float x, y, width, height;
    static_cast<nsSVGElement*>(mContent)->
      GetAnimatedLengthValues(&x, &y, &width, &height, nsnull);

    gfxRect clipRect =
      nsSVGUtils::GetClipRectForFrame(this, 0.0f, 0.0f, width, height);
    nsSVGUtils::SetClipRect(gfx, matrix, clipRect);
  }

  gfx->Multiply(matrixForChildren);

  // Transform the dirty rect into the rectangle containing the
  // transformed dirty rect.
  gfxMatrix invmatrix = matrix.Invert();
  NS_ASSERTION(!invmatrix.IsSingular(),
               "inverse of non-singular matrix should be non-singular");

  gfxRect transDirtyRect = gfxRect(aDirtyRect->x, aDirtyRect->y,
                                   aDirtyRect->width, aDirtyRect->height);
  transDirtyRect = invmatrix.TransformBounds(transDirtyRect);

  transDirtyRect.Scale(nsPresContext::AppUnitsPerCSSPixel());
  nsPoint tl(NSToCoordFloor(transDirtyRect.X()),
             NSToCoordFloor(transDirtyRect.Y()));
  nsPoint br(NSToCoordCeil(transDirtyRect.XMost()),
             NSToCoordCeil(transDirtyRect.YMost()));
  nsRect kidDirtyRect(tl.x, tl.y, br.x - tl.x, br.y - tl.y);

  kidDirtyRect.IntersectRect(kidDirtyRect, kid->GetRect());

  PRUint32 flags = nsLayoutUtils::PAINT_IN_TRANSFORM;
  if (aContext->IsPaintingToWindow()) {
    flags |= nsLayoutUtils::PAINT_TO_WINDOW;
  }
  nsresult rv = nsLayoutUtils::PaintFrame(ctx, kid, nsRegion(kidDirtyRect),
                                          NS_RGBA(0,0,0,0), flags);

  gfx->Restore();

  return rv;
}
Ejemplo n.º 20
0
NS_IMETHODIMP
nsSVGForeignObjectFrame::PaintSVG(nsRenderingContext *aContext,
                                  const nsIntRect *aDirtyRect)
{
  if (IsDisabled())
    return NS_OK;

  nsIFrame* kid = GetFirstPrincipalChild();
  if (!kid)
    return NS_OK;

  gfxMatrix matrixForChildren = GetCanvasTMForChildren();
  gfxMatrix matrix = GetCanvasTM();

  if (matrixForChildren.IsSingular()) {
    NS_WARNING("Can't render foreignObject element!");
    return NS_ERROR_FAILURE;
  }

  nsRect kidDirtyRect = kid->GetVisualOverflowRect();

  /* Check if we need to draw anything. */
  if (aDirtyRect) {
    // Transform the dirty rect into app units in our userspace.
    gfxMatrix invmatrix = matrix;
    invmatrix.Invert();
    NS_ASSERTION(!invmatrix.IsSingular(),
                 "inverse of non-singular matrix should be non-singular");

    gfxRect transDirtyRect = gfxRect(aDirtyRect->x, aDirtyRect->y,
                                     aDirtyRect->width, aDirtyRect->height);
    transDirtyRect = invmatrix.TransformBounds(transDirtyRect);

    kidDirtyRect.IntersectRect(kidDirtyRect,
      nsLayoutUtils::RoundGfxRectToAppRect(transDirtyRect,
                       PresContext()->AppUnitsPerCSSPixel()));

    // XXX after bug 614732 is fixed, we will compare mRect with aDirtyRect,
    // not with kidDirtyRect. I.e.
    // PRInt32 appUnitsPerDevPx = PresContext()->AppUnitsPerDevPixel();
    // mRect.ToOutsidePixels(appUnitsPerDevPx).Intersects(*aDirtyRect)
    if (kidDirtyRect.IsEmpty())
      return NS_OK;
  }

  gfxContext *gfx = aContext->ThebesContext();

  gfx->Save();

  if (GetStyleDisplay()->IsScrollableOverflow()) {
    float x, y, width, height;
    static_cast<nsSVGElement*>(mContent)->
      GetAnimatedLengthValues(&x, &y, &width, &height, nsnull);

    gfxRect clipRect =
      nsSVGUtils::GetClipRectForFrame(this, 0.0f, 0.0f, width, height);
    nsSVGUtils::SetClipRect(gfx, matrix, clipRect);
  }

  gfx->Multiply(matrixForChildren);

  PRUint32 flags = nsLayoutUtils::PAINT_IN_TRANSFORM;
  if (SVGAutoRenderState::IsPaintingToWindow(aContext)) {
    flags |= nsLayoutUtils::PAINT_TO_WINDOW;
  }
  nsresult rv = nsLayoutUtils::PaintFrame(aContext, kid, nsRegion(kidDirtyRect),
                                          NS_RGBA(0,0,0,0), flags);

  gfx->Restore();

  return rv;
}
Ejemplo n.º 21
0
NS_IMETHODIMP 
nsComboboxControlFrame::Reflow(nsPresContext*          aPresContext, 
                               nsHTMLReflowMetrics&     aDesiredSize,
                               const nsHTMLReflowState& aReflowState, 
                               nsReflowStatus&          aStatus)
{
  // Constraints we try to satisfy:

  // 1) Default width of button is the vertical scrollbar size
  // 2) If the width of button is bigger than our width, set width of
  //    button to 0.
  // 3) Default height of button is height of display area
  // 4) Width of display area is whatever is left over from our width after
  //    allocating width for the button.
  // 5) Height of display area is GetHeightOfARow() on the
  //    mListControlFrame.

  if (!mDisplayFrame || !mButtonFrame || !mDropdownFrame) {
    NS_ERROR("Why did the frame constructor allow this to happen?  Fix it!!");
    return NS_ERROR_UNEXPECTED;
  }

  // Make sure the displayed text is the same as the selected option, bug 297389.
  PRInt32 selectedIndex;
  nsAutoString selectedOptionText;
  if (!mDroppedDown) {
    selectedIndex = mListControlFrame->GetSelectedIndex();
  }
  else {
    // In dropped down mode the "selected index" is the hovered menu item,
    // we want the last selected item which is |mDisplayedIndex| in this case.
    selectedIndex = mDisplayedIndex;
  }
  if (selectedIndex != -1) {
    mListControlFrame->GetOptionText(selectedIndex, selectedOptionText);
  }
  if (mDisplayedOptionText != selectedOptionText) {
    RedisplayText(selectedIndex);
  }

  // First reflow our dropdown so that we know how tall we should be.
  ReflowDropdown(aPresContext, aReflowState);

  // Get the width of the vertical scrollbar.  That will be the width of the
  // dropdown button.
  nscoord buttonWidth;
  const nsStyleDisplay *disp = GetStyleDisplay();
  if (IsThemed(disp) && !aPresContext->GetTheme()->ThemeNeedsComboboxDropmarker()) {
    buttonWidth = 0;
  }
  else {
    nsIScrollableFrame* scrollable = do_QueryFrame(mListControlFrame);
    NS_ASSERTION(scrollable, "List must be a scrollable frame");
    buttonWidth =
      scrollable->GetDesiredScrollbarSizes(PresContext(), 
                                           aReflowState.rendContext).LeftRight();
    if (buttonWidth > aReflowState.ComputedWidth()) {
      buttonWidth = 0;
    }
  }

  mDisplayWidth = aReflowState.ComputedWidth() - buttonWidth;

  nsresult rv = nsBlockFrame::Reflow(aPresContext, aDesiredSize, aReflowState,
                                    aStatus);
  NS_ENSURE_SUCCESS(rv, rv);

  // Now set the correct width and height on our button.  The width we need to
  // set always, the height only if we had an auto height.
  nsRect buttonRect = mButtonFrame->GetRect();
  // If we have a non-intrinsic computed height, our kids should have sized
  // themselves properly on their own.
  if (aReflowState.ComputedHeight() == NS_INTRINSICSIZE) {
    // The display frame is going to be the right height and width at this
    // point. Use its height as the button height.
    nsRect displayRect = mDisplayFrame->GetRect();
    buttonRect.height = displayRect.height;
    buttonRect.y = displayRect.y;
  }
#ifdef DEBUG
  else {
    nscoord buttonHeight = mButtonFrame->GetSize().height;
    nscoord displayHeight = mDisplayFrame->GetSize().height;

    // The button and display area should be equal heights, unless the computed
    // height on the combobox is too small to fit their borders and padding.
    NS_ASSERTION(buttonHeight == displayHeight ||
                 (aReflowState.ComputedHeight() < buttonHeight &&
                  buttonHeight ==
                    mButtonFrame->GetUsedBorderAndPadding().TopBottom()) ||
                 (aReflowState.ComputedHeight() < displayHeight &&
                  displayHeight ==
                    mDisplayFrame->GetUsedBorderAndPadding().TopBottom()),
                 "Different heights?");
  }
#endif
  
  if (GetStyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL) {
    // Make sure the right edge of the button frame stays where it is now
    buttonRect.x -= buttonWidth - buttonRect.width;
  }
  buttonRect.width = buttonWidth;
  mButtonFrame->SetRect(buttonRect);
  
  return rv;
}
Ejemplo n.º 22
0
nsresult
nsSubDocumentFrame::ShowDocShell()
{
  nsCOMPtr<nsIDocShell> docShell;
  nsresult rv = GetDocShell(getter_AddRefs(docShell));
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr<nsIPresShell> presShell;
  docShell->GetPresShell(getter_AddRefs(presShell));

  if (presShell) {
    // The docshell is already showing, nothing left to do...
    NS_ASSERTION(mInnerView, "What's going on?");
    return NS_OK;
  }

  // pass along marginwidth, marginheight, scrolling so sub document
  // can use it
  nsIntSize margin = GetMarginAttributes();
  docShell->SetMarginWidth(margin.width);
  docShell->SetMarginHeight(margin.height);

  // Current and initial scrolling is set so that all succeeding docs
  // will use the scrolling value set here, regardless if scrolling is
  // set by viewing a particular document (e.g. XUL turns off scrolling)
  nsCOMPtr<nsIScrollable> sc(do_QueryInterface(docShell));

  if (sc) {
    const nsStyleDisplay *disp = GetStyleDisplay();
    sc->SetDefaultScrollbarPreferences(nsIScrollable::ScrollOrientation_X,
                                       ConvertOverflow(disp->mOverflowX));
    sc->SetDefaultScrollbarPreferences(nsIScrollable::ScrollOrientation_Y,
                                       ConvertOverflow(disp->mOverflowY));
  }

  PRInt32 itemType = nsIDocShellTreeItem::typeContent;
  nsCOMPtr<nsIDocShellTreeItem> treeItem(do_QueryInterface(docShell));
  if (treeItem) {
    treeItem->GetItemType(&itemType);
  }

  nsContentType contentType;
  if (itemType == nsIDocShellTreeItem::typeChrome) {
    contentType = eContentTypeUI;
  }
  else {
    nsCOMPtr<nsIDocShellTreeItem> sameTypeParent;
    treeItem->GetSameTypeParent(getter_AddRefs(sameTypeParent));
    contentType = sameTypeParent ? eContentTypeContentFrame : eContentTypeContent;
  }
  rv = CreateViewAndWidget(contentType);
  if (NS_FAILED(rv)) {
    return rv;
  }

  nsCOMPtr<nsIBaseWindow> baseWindow(do_QueryInterface(docShell));

  if (baseWindow) {
    baseWindow->InitWindow(nsnull, mInnerView->GetWidget(), 0, 0, 10, 10);

    // This is kinda whacky, this "Create()" call doesn't really
    // create anything, one starts to wonder why this was named
    // "Create"...

    baseWindow->Create();

    baseWindow->SetVisibility(PR_TRUE);
  }

  // Trigger editor re-initialization if midas is turned on in the
  // sub-document. This shouldn't be necessary, but given the way our
  // editor works, it is. See
  // https://bugzilla.mozilla.org/show_bug.cgi?id=284245
  docShell->GetPresShell(getter_AddRefs(presShell));
  if (presShell) {
    nsCOMPtr<nsIDOMNSHTMLDocument> doc =
      do_QueryInterface(presShell->GetDocument());

    if (doc) {
      nsAutoString designMode;
      doc->GetDesignMode(designMode);

      if (designMode.EqualsLiteral("on")) {
        doc->SetDesignMode(NS_LITERAL_STRING("off"));
        doc->SetDesignMode(NS_LITERAL_STRING("on"));
      }
    }
  }

  return NS_OK;
}
Ejemplo n.º 23
0
NS_IMETHODIMP
nsTableCellFrame::Paint(nsPresContext*      aPresContext,
                        nsIRenderingContext& aRenderingContext,
                        const nsRect&        aDirtyRect,
                        nsFramePaintLayer    aWhichLayer,
                        PRUint32             aFlags)
{
  NS_ENSURE_TRUE(aPresContext, NS_ERROR_NULL_POINTER);
  PRBool isVisible;
  if (NS_SUCCEEDED(IsVisibleForPainting(aPresContext, aRenderingContext, PR_FALSE, &isVisible)) && !isVisible) {
    return NS_OK;
  }

  PRBool paintChildren = PR_TRUE;

  if (NS_FRAME_PAINT_LAYER_BACKGROUND == aWhichLayer) {
    const nsStyleBorder*      myBorder       = nsnull;
    const nsStylePadding*     myPadding      = nsnull;
    const nsStyleTableBorder* cellTableStyle = nsnull;
    const nsStyleVisibility* vis = GetStyleVisibility();
    if (vis->IsVisible()) {
      myBorder = GetStyleBorder();
      myPadding = GetStylePadding();
      cellTableStyle = GetStyleTableBorder();

      // draw the border & background only when there is content or showing empty cells
      if (NS_STYLE_TABLE_EMPTY_CELLS_HIDE != cellTableStyle->mEmptyCells ||
          !GetContentEmpty()) {
        PaintUnderlay(*aPresContext, aRenderingContext, aDirtyRect, aFlags,
                      *myBorder, *myPadding, *cellTableStyle);
      }

      // Paint outline
      nsRect rect(0, 0, mRect.width, mRect.height);
      const nsStyleOutline* myOutline = GetStyleOutline();
      nsCSSRendering::PaintOutline(aPresContext, aRenderingContext, this,
                                  aDirtyRect, rect, *myBorder, *myOutline,
                                  mStyleContext, 0);

      const nsStyleBackground* myColor = GetStyleBackground();
      DecorateForSelection(aPresContext, aRenderingContext,myColor); //ignore return value
    }

    paintChildren = !(aFlags & NS_PAINT_FLAG_TABLE_CELL_BG_PASS);
    //flags were for us; remove them for our children
    aFlags &= ~ (NS_PAINT_FLAG_TABLE_CELL_BG_PASS | NS_PAINT_FLAG_TABLE_BG_PAINT);
  }

#ifdef DEBUG
  // for debug...
  if ((NS_FRAME_PAINT_LAYER_DEBUG == aWhichLayer) && GetShowFrameBorders()) {
    aRenderingContext.SetColor(NS_RGB(0, 0, 128));
    aRenderingContext.DrawRect(0, 0, mRect.width, mRect.height);
  }
#endif

  // paint the children unless we've been told not to
  if (paintChildren) {
    const nsStyleDisplay* disp = GetStyleDisplay();
    // if the cell originates in a row and/or col that is collapsed, the
    // bottom and/or right portion of the cell is painted by translating
    // the rendering context.
    nsPoint offset;
    GetCollapseOffset(offset);
    PRBool pushed = PR_FALSE;
    if ((0 != offset.x) || (0 != offset.y)) {
      aRenderingContext.PushState();
      pushed = PR_TRUE;
      aRenderingContext.Translate(offset.x, offset.y);
      aRenderingContext.SetClipRect(nsRect(-offset.x, -offset.y, mRect.width, mRect.height),
                                    nsClipCombine_kIntersect);
    }
    else {
      // XXXldb HIDDEN should really create a scrollframe,
      // but use |IsTableClip| here since it doesn't.
      if (disp->IsTableClip() ||
          (HasPctOverHeight() && eCompatibility_NavQuirks == aPresContext->CompatibilityMode())) {
        aRenderingContext.PushState();
        pushed = PR_TRUE;
        SetOverflowClipRect(aRenderingContext);
      }    
    }

    PaintChildren(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer, aFlags);

    if (pushed) {
      aRenderingContext.PopState();
    }
  } 
  
  DO_GLOBAL_REFLOW_COUNT_DSP_J("nsTableCellFrame", &aRenderingContext, 0);
  return NS_OK;
  /*nsFrame::Paint(aPresContext,
                        aRenderingContext,
                        aDirtyRect,
                        aWhichLayer);*/
}
Ejemplo n.º 24
0
NS_IMETHODIMP
nsFirstLetterFrame::Reflow(nsPresContext*          aPresContext,
                           nsHTMLReflowMetrics&     aMetrics,
                           const nsHTMLReflowState& aReflowState,
                           nsReflowStatus&          aReflowStatus)
{
  DO_GLOBAL_REFLOW_COUNT("nsFirstLetterFrame");
  DISPLAY_REFLOW(aPresContext, this, aReflowState, aMetrics, aReflowStatus);
  nsresult rv = NS_OK;

  // Grab overflow list
  DrainOverflowFrames(aPresContext);

  nsIFrame* kid = mFrames.FirstChild();

  // Setup reflow state for our child
  nsSize availSize(aReflowState.availableWidth, aReflowState.availableHeight);
  const nsMargin& bp = aReflowState.mComputedBorderPadding;
  nscoord lr = bp.left + bp.right;
  nscoord tb = bp.top + bp.bottom;
  NS_ASSERTION(availSize.width != NS_UNCONSTRAINEDSIZE,
               "should no longer use unconstrained widths");
  availSize.width -= lr;
  if (NS_UNCONSTRAINEDSIZE != availSize.height) {
    availSize.height -= tb;
  }

  // Reflow the child
  if (!aReflowState.mLineLayout) {
    // When there is no lineLayout provided, we provide our own. The
    // only time that the first-letter-frame is not reflowing in a
    // line context is when its floating.
    nsHTMLReflowState rs(aPresContext, aReflowState, kid, availSize);
    nsLineLayout ll(aPresContext, nsnull, &aReflowState, nsnull);
    ll.BeginLineReflow(bp.left, bp.top, availSize.width, NS_UNCONSTRAINEDSIZE,
                       PR_FALSE, PR_TRUE);
    rs.mLineLayout = &ll;
    ll.SetInFirstLetter(PR_TRUE);
    ll.SetFirstLetterStyleOK(PR_TRUE);

    kid->WillReflow(aPresContext);
    kid->Reflow(aPresContext, aMetrics, rs, aReflowStatus);

    ll.EndLineReflow();
    ll.SetInFirstLetter(PR_FALSE);
  }
  else {
    // Pretend we are a span and reflow the child frame
    nsLineLayout* ll = aReflowState.mLineLayout;
    PRBool        pushedFrame;

    ll->SetInFirstLetter(
      mStyleContext->GetPseudo() == nsCSSPseudoElements::firstLetter);
    ll->BeginSpan(this, &aReflowState, bp.left, availSize.width);
    ll->ReflowFrame(kid, aReflowStatus, &aMetrics, pushedFrame);
    ll->EndSpan(this);
    ll->SetInFirstLetter(PR_FALSE);
  }

  // Place and size the child and update the output metrics
  kid->SetRect(nsRect(bp.left, bp.top, aMetrics.width, aMetrics.height));
  kid->FinishAndStoreOverflow(&aMetrics);
  kid->DidReflow(aPresContext, nsnull, NS_FRAME_REFLOW_FINISHED);

  aMetrics.width += lr;
  aMetrics.height += tb;
  aMetrics.ascent += bp.top;
  mBaseline = aMetrics.ascent;

  // Ensure that the overflow rect contains the child textframe's overflow rect.
  // Note that if this is floating, the overline/underline drawable area is in
  // the overflow rect of the child textframe.
  aMetrics.UnionOverflowAreasWithDesiredBounds();
  ConsiderChildOverflow(aMetrics.mOverflowAreas, kid);

  // Create a continuation or remove existing continuations based on
  // the reflow completion status.
  if (NS_FRAME_IS_COMPLETE(aReflowStatus)) {
    if (aReflowState.mLineLayout) {
      aReflowState.mLineLayout->SetFirstLetterStyleOK(PR_FALSE);
    }
    nsIFrame* kidNextInFlow = kid->GetNextInFlow();
    if (kidNextInFlow) {
      // Remove all of the childs next-in-flows
      static_cast<nsContainerFrame*>(kidNextInFlow->GetParent())
        ->DeleteNextInFlowChild(aPresContext, kidNextInFlow, PR_TRUE);
    }
  }
  else {
    // Create a continuation for the child frame if it doesn't already
    // have one.
    if (!GetStyleDisplay()->IsFloating()) {
      nsIFrame* nextInFlow;
      rv = CreateNextInFlow(aPresContext, kid, nextInFlow);
      if (NS_FAILED(rv)) {
        return rv;
      }

      // And then push it to our overflow list
      const nsFrameList& overflow = mFrames.RemoveFramesAfter(kid);
      if (overflow.NotEmpty()) {
        SetOverflowFrames(aPresContext, overflow);
      }
    } else if (!kid->GetNextInFlow()) {
      // For floating first letter frames (if a continuation wasn't already
      // created for us) we need to put the continuation with the rest of the
      // text that the first letter frame was made out of.
      nsIFrame* continuation;
      rv = CreateContinuationForFloatingParent(aPresContext, kid,
                                               &continuation, PR_TRUE);
    }
  }

  FinishAndStoreOverflow(&aMetrics);

  NS_FRAME_SET_TRUNCATION(aReflowStatus, aReflowState, aMetrics);
  return rv;
}