Ziele Untersuchung
mit Columbo Integrität von
Datenbanken Interaktion und
Portierbarkeit Ergonomie der
Schnittstellen

Angebot Produkte Projekt Beratung

Mittel Analytik Modellierung Sprachen Algebra Logik Hardware Denken Kreativität

Zusammenhänge Gesellschaft Wirtschaft Branche Firma


products/sources/formale Sprachen/C/Firefox/layout/svg/ (Browser von der Mozilla Stiftung Version 136.0.1^©) Datei vom 10.2.2025 mit Größe 4 kB

Quelle SVGImageContext.cpp Sprache: C

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

// Main header first:
#include "SVGImageContext.h"

// Keep others in (case-insensitive) order:
#include "gfxUtils.h"
#include "mozilla/LookAndFeel.h"
#include "mozilla/StaticPrefs_svg.h"
#include "mozilla/dom/Document.h"
#include "nsIFrame.h"
#include "nsPresContext.h"
#include "nsStyleStruct.h"
#include "nsISVGPaintContext.h"
#include "mozilla/ServoCSSParser.h"

namespace mozilla {

/* static */
void SVGImageContext::MaybeStoreContextPaint(SVGImageContext& aContext,
                                             nsIFrame* aFromFrame,
                                             imgIContainer* aImgContainer) {
  return MaybeStoreContextPaint(aContext, *aFromFrame->PresContext(),
                                *aFromFrame->Style(), aImgContainer);
}

/* static */
void SVGImageContext::MaybeStoreContextPaint(SVGImageContext& aContext,
                                             const nsPresContext& aPresContext,
                                             const ComputedStyle& aStyle,
                                             imgIContainer* aImgContainer) {
  if (aImgContainer->GetType() != imgIContainer::TYPE_VECTOR) {
    // Avoid this overhead for raster images.
    return;
  }

  if (StaticPrefs::svg_embedder_prefers_color_scheme_content_enabled() ||
      aPresContext.Document()->ChromeRulesEnabled()) {
    auto scheme = LookAndFeel::ColorSchemeForStyle(
        *aPresContext.Document(), aStyle.StyleUI()->mColorScheme.bits,
        ColorSchemeMode::Preferred);
    aContext.SetColorScheme(Some(scheme));
  }

  const nsStyleSVG* style = aStyle.StyleSVG();
  if (!style->ExposesContextProperties()) {
    // Content must have '-moz-context-properties' set to the names of the
    // properties it wants to expose to images it links to.
    return;
  }

  bool haveContextPaint = false;

  auto contextPaint = MakeRefPtr<SVGEmbeddingContextPaint>();

  if ((style->mMozContextProperties.bits & StyleContextPropertyBits::FILL) &&
      style->mFill.kind.IsColor()) {
    haveContextPaint = true;
    contextPaint->SetFill(style->mFill.kind.AsColor().CalcColor(aStyle));
  }
  if ((style->mMozContextProperties.bits & StyleContextPropertyBits::STROKE) &&
      style->mStroke.kind.IsColor()) {
    haveContextPaint = true;
    contextPaint->SetStroke(style->mStroke.kind.AsColor().CalcColor(aStyle));
  }
  if (style->mMozContextProperties.bits &
      StyleContextPropertyBits::FILL_OPACITY) {
    haveContextPaint = true;
    contextPaint->SetFillOpacity(style->mFillOpacity.IsOpacity()
                                     ? style->mFillOpacity.AsOpacity()
                                     : 1.0f);
  }
  if (style->mMozContextProperties.bits &
      StyleContextPropertyBits::STROKE_OPACITY) {
    haveContextPaint = true;
    contextPaint->SetStrokeOpacity(style->mStrokeOpacity.IsOpacity()
                                       ? style->mStrokeOpacity.AsOpacity()
                                       : 1.0f);
  }

  if (haveContextPaint) {
    aContext.mContextPaint = std::move(contextPaint);
  }
}

/* static */
void SVGImageContext::MaybeStoreContextPaint(SVGImageContext& aContext,
                                             nsISVGPaintContext* aPaintContext,
                                             imgIContainer* aImgContainer) {
  if (aImgContainer->GetType() != imgIContainer::TYPE_VECTOR ||
      !aPaintContext) {
    // Avoid this overhead for raster images.
    return;
  }

  bool haveContextPaint = false;
  auto contextPaint = MakeRefPtr<SVGEmbeddingContextPaint>();
  nsCString value;
  float opacity;

  if (NS_SUCCEEDED(aPaintContext->GetStrokeColor(value)) && !value.IsEmpty()) {
    nscolor color;
    if (ServoCSSParser::ComputeColor(nullptr, NS_RGB(0, 0, 0), value, &color)) {
      haveContextPaint = true;
      contextPaint->SetStroke(color);
    }
  }

  if (NS_SUCCEEDED(aPaintContext->GetFillColor(value)) && !value.IsEmpty()) {
    nscolor color;
    if (ServoCSSParser::ComputeColor(nullptr, NS_RGB(0, 0, 0), value, &color)) {
      haveContextPaint = true;
      contextPaint->SetFill(color);
    }
  }

  if (NS_SUCCEEDED(aPaintContext->GetStrokeOpacity(&opacity))) {
    haveContextPaint = true;
    contextPaint->SetStrokeOpacity(opacity);
  }

  if (NS_SUCCEEDED(aPaintContext->GetFillOpacity(&opacity))) {
    haveContextPaint = true;
    contextPaint->SetFillOpacity(opacity);
  }

  if (haveContextPaint) {
    aContext.mContextPaint = std::move(contextPaint);
  }
}

}  // namespace mozilla

quality100%

¤ Dauer der Verarbeitung: 0.32 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.