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+
+/*
+ * Copyright 2010 The Android Open Source Project
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+
+#ifndef SkPDFImage_DEFINED
+#define SkPDFImage_DEFINED
+
+#include "SkPDFStream.h"
+#include "SkPDFTypes.h"
+#include "SkRefCnt.h"
+
+class SkBitmap;
+class SkPaint;
+class SkPDFCatalog;
+struct SkIRect;
+
+/** \class SkPDFImage
+
+ An image XObject.
+*/
+
+// We could play the same trick here as is done in SkPDFGraphicState, storing
+// a copy of the Bitmap object (not the pixels), the pixel generation number,
+// and settings used from the paint to canonicalize image objects.
+class SkPDFImage : public SkPDFStream {
+public:
+ /** Create a new Image XObject to represent the passed bitmap.
+ * @param bitmap The image to encode.
+ * @param srcRect The rectangle to cut out of bitmap.
+ * @param paint Used to calculate alpha, masks, etc.
+ * @return The image XObject or NUll if there is nothing to draw for
+ * the given parameters.
+ */
+ static SkPDFImage* CreateImage(const SkBitmap& bitmap,
+ const SkIRect& srcRect,
+ const SkPaint& paint);
+
+ virtual ~SkPDFImage();
+
+ /** Add a Soft Mask (alpha or shape channel) to the image. Refs mask.
+ * @param mask A gray scale image representing the mask.
+ * @return The mask argument is returned.
+ */
+ SkPDFImage* addSMask(SkPDFImage* mask);
+
+ // The SkPDFObject interface.
+ virtual void getResources(SkTDArray<SkPDFObject*>* resourceList);
+
+private:
+ SkTDArray<SkPDFObject*> fResources;
+
+ /** Create a PDF image XObject. Entries for the image properties are
+ * automatically added to the stream dictionary.
+ * @param imageData The final raw bits representing the image.
+ * @param bitmap The image parameters to use (Config, etc).
+ * @param srcRect The clipping applied to bitmap before generating
+ * imageData.
+ * @param alpha Is this the alpha channel of the bitmap.
+ * @param paint Used to calculate alpha, masks, etc.
+ */
+ SkPDFImage(SkStream* imageData, const SkBitmap& bitmap,
+ const SkIRect& srcRect, bool alpha, const SkPaint& paint);
+};
+
+#endif