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authorLei Zhang <thestig@chromium.org>2018-05-08 19:06:38 +0000
committerChromium commit bot <commit-bot@chromium.org>2018-05-08 19:06:38 +0000
commitfdd0ef61e79aa1ca7c0859b8ff45740b6fb96bc2 (patch)
tree791fcf5b16bf322b6e95d792463a3dd9d6518e8d /constants/transparency.h
parentb7c41498ac1f09debe0b12efe1312a22246a18b0 (diff)
downloadpdfium-fdd0ef61e79aa1ca7c0859b8ff45740b6fb96bc2.tar.xz
Add constants for PDF 1.7 spec, table 7.2 and 7.3.
Add constants/transparency.h. The header lists constants from chapter 7 of the PDF spec. BUG=pdfium:1049 Change-Id: I66bd6fceb24807eec9c308e2e47cec3f2f836ffb Reviewed-on: https://pdfium-review.googlesource.com/32177 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
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-rw-r--r--constants/transparency.h38
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diff --git a/constants/transparency.h b/constants/transparency.h
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+// Copyright 2018 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CONSTANTS_TRANSPARENCY_H_
+#define CONSTANTS_TRANSPARENCY_H_
+
+namespace pdfium {
+namespace transparency {
+
+// PDF 1.7 spec, table 7.2.
+// Standard separable blend modes.
+
+constexpr char kNormal[] = "Normal";
+constexpr char kMultiply[] = "Multiply";
+constexpr char kScreen[] = "Screen";
+constexpr char kOverlay[] = "Overlay";
+constexpr char kDarken[] = "Darken";
+constexpr char kLighten[] = "Lighten";
+constexpr char kColorDodge[] = "ColorDodge";
+constexpr char kColorBurn[] = "ColorBurn";
+constexpr char kHardLight[] = "HardLight";
+constexpr char kSoftLight[] = "SoftLight";
+constexpr char kDifference[] = "Difference";
+constexpr char kExclusion[] = "Exclusion";
+
+// PDF 1.7 spec, table 7.3.
+// Standard nonseparable blend modes.
+
+constexpr char kHue[] = "Hue";
+constexpr char kSaturation[] = "Saturation";
+constexpr char kColor[] = "Color";
+constexpr char kLuminosity[] = "Luminosity";
+
+} // namespace transparency
+} // namespace pdfium
+
+#endif // CONSTANTS_TRANSPARENCY_H_