TextDecorationPainter::TextDecorationPainter(GraphicsContext& context, TextDecoration decoration, const RenderText& renderer, bool isFirstLine)
: m_context(context)
, m_decoration(decoration)
, m_wavyOffset(wavyOffsetFromDecoration())
, m_isPrinting(renderer.document().printing())
, m_styles(stylesForRenderer(renderer, m_decoration, isFirstLine))
, m_lineStyle(isFirstLine ? renderer.firstLineStyle() : renderer.style())
{
}
TextPaintStyle computeTextPaintStyle(const RenderText& renderer, const RenderStyle& lineStyle, const PaintInfo& paintInfo)
{
TextPaintStyle paintStyle(lineStyle.colorSpace());
paintStyle.strokeWidth = lineStyle.textStrokeWidth();
if (paintInfo.forceBlackText()) {
paintStyle.fillColor = Color::black;
paintStyle.strokeColor = Color::black;
paintStyle.emphasisMarkColor = Color::black;
return paintStyle;
}
paintStyle.fillColor = lineStyle.visitedDependentColor(CSSPropertyWebkitTextFillColor);
bool forceBackgroundToWhite = false;
if (renderer.document().printing()) {
if (lineStyle.printColorAdjust() == PrintColorAdjustEconomy)
forceBackgroundToWhite = true;
if (renderer.frame().settings().shouldPrintBackgrounds())
forceBackgroundToWhite = false;
}
// Make the text fill color legible against a white background
if (forceBackgroundToWhite)
paintStyle.fillColor = adjustColorForVisibilityOnBackground(paintStyle.fillColor, Color::white);
paintStyle.strokeColor = lineStyle.visitedDependentColor(CSSPropertyWebkitTextStrokeColor);
// Make the text stroke color legible against a white background
if (forceBackgroundToWhite)
paintStyle.strokeColor = adjustColorForVisibilityOnBackground(paintStyle.strokeColor, Color::white);
paintStyle.emphasisMarkColor = lineStyle.visitedDependentColor(CSSPropertyWebkitTextEmphasisColor);
// Make the text stroke color legible against a white background
if (forceBackgroundToWhite)
paintStyle.emphasisMarkColor = adjustColorForVisibilityOnBackground(paintStyle.emphasisMarkColor, Color::white);
return paintStyle;
}
