/* * Copyright 2011 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file.
*/ #ifndef SkPDFShader_DEFINED #define SkPDFShader_DEFINED
class SkPDFDocument; class SkShader; enumclass SkTileMode;
/** Make a PDF shader for the passed SkShader. If the SkShader is invalid in * some way, returns nullptr. * * In PDF parlance, this is a pattern, used in place of a color when the * pattern color space is selected. * * May cache the shader in the document for later re-use. If this function is * called again with an equivalent shader, a new reference to the cached pdf * shader may be returned. * * @param doc The parent document, must be non-null. * @param shader The SkShader to emulate. * @param ctm The current transform matrix. (PDF shaders are absolutely * positioned, relative to where the page is drawn.) * @param surfaceBBox The bounding box of the drawing surface (with matrix * already applied). * @param paintColor Color+Alpha of the paint. Color is usually ignored, * unless it is a alpha shader.
*/
SkPDFIndirectReference SkPDFMakeShader(SkPDFDocument* doc,
SkShader* shader, const SkMatrix& ctm, const SkIRect& surfaceBBox,
SkColor4f paintColor);
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