Method updateDrawingState

src/pdf/PDFGraphicStackState.cpp:107–136

}

void PDFGraphicStackState::updateDrawingState(const PDFGraphicStackState::Entry& state) {
  // PDF treats a shader as a color, so we only set one or the other.
  if (state.shaderIndex >= 0) {
    if (state.shaderIndex != currentEntry()->shaderIndex) {
      PDFUtils::ApplyPattern(state.shaderIndex, contentStream);
      currentEntry()->shaderIndex = state.shaderIndex;
    }
  } else if (state.color != currentEntry()->color || currentEntry()->shaderIndex >= 0) {
    EmitPDFColor(state.color, contentStream);
    contentStream->writeText("RG ");
    EmitPDFColor(state.color, contentStream);
    contentStream->writeText("rg\n");
    currentEntry()->color = state.color;
    currentEntry()->shaderIndex = -1;
  }

  if (state.graphicStateIndex != currentEntry()->graphicStateIndex) {
    PDFUtils::ApplyGraphicState(state.graphicStateIndex, contentStream);
    currentEntry()->graphicStateIndex = state.graphicStateIndex;
  }

  if (state.textScaleX != 0) {
    if (state.textScaleX != currentEntry()->textScaleX) {
      float pdfScale = state.textScaleX * 100;
      PDFUtils::AppendFloat(pdfScale, contentStream);
      contentStream->writeText(" Tz\n");
      currentEntry()->textScaleX = state.textScaleX;
    }
  }
}

void PDFGraphicStackState::push() {
  DEBUG_ASSERT(stackDepth < MaxStackDepth);