Add DPI stettings to SkDocument::CreatePDF(). Tests will be added in a future cl, once DPI will be …

src/doc/SkDocument_PDF.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDocument.h"
 #include "SkPDFDocument.h"
 #include "SkPDFDeviceFlattener.h"
 
 class SkDocument_PDF : public SkDocument {
 public:
     SkDocument_PDF(SkWStream* stream, void (*doneProc)(SkWStream*),
-                   SkPicture::EncodeBitmap encoder)
+                   SkPicture::EncodeBitmap encoder,
+                   SkScalar rasterDpi)
             : SkDocument(stream, doneProc)
-            , fEncoder(encoder) {
+            , fEncoder(encoder)
+            , fRasterDpi(rasterDpi) {
         fDoc = SkNEW(SkPDFDocument);
         fCanvas = NULL;
         fDevice = NULL;
     }
 
     virtual ~SkDocument_PDF() {
         // subclasses must call close() in their destructors
         this->close();
     }
 
 protected:
     virtual SkCanvas* onBeginPage(SkScalar width, SkScalar height,
                                   const SkRect& trimBox) SK_OVERRIDE {
         SkASSERT(NULL == fCanvas);
         SkASSERT(NULL == fDevice);
 
         SkSize mediaBoxSize;
         mediaBoxSize.set(width, height);
 
         fDevice = SkNEW_ARGS(SkPDFDeviceFlattener, (mediaBoxSize, &trimBox));
         if (fEncoder) {
             fDevice->setDCTEncoder(fEncoder);
         }
+        if (fRasterDpi != 0) {
+            fDevice->setRasterDpi(fRasterDpi);
+        }
         fCanvas = SkNEW_ARGS(SkCanvas, (fDevice));
         return fCanvas;
     }
 
     virtual void onEndPage() SK_OVERRIDE {
         SkASSERT(fCanvas);
         SkASSERT(fDevice);
 
         fCanvas->flush();
         fDoc->appendPage(fDevice);
@@ skipping 18 matching lines @@
     virtual void onAbort() SK_OVERRIDE {
         SkDELETE(fDoc);
         fDoc = NULL;
     }
 
 private:
     SkPDFDocument*  fDoc;
     SkPDFDeviceFlattener* fDevice;
     SkCanvas*       fCanvas;
     SkPicture::EncodeBitmap fEncoder;
+    SkScalar        fRasterDpi;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 SkDocument* SkDocument::CreatePDF(SkWStream* stream, void (*done)(SkWStream*),
-                                  SkPicture::EncodeBitmap enc) {
-    return stream ? SkNEW_ARGS(SkDocument_PDF, (stream, done, enc)) : NULL;
+                                  SkPicture::EncodeBitmap enc,
+                                  SkScalar dpi) {
+    return stream ? SkNEW_ARGS(SkDocument_PDF, (stream, done, enc, dpi)) : NULL;
 }
 
 static void delete_wstream(SkWStream* stream) {
     SkDELETE(stream);
 }
 
-SkDocument* SkDocument::CreatePDF(const char path[], SkPicture::EncodeBitmap enc) {
+SkDocument* SkDocument::CreatePDF(const char path[],
+                                  SkPicture::EncodeBitmap enc,
+                                  SkScalar dpi) {
     SkFILEWStream* stream = SkNEW_ARGS(SkFILEWStream, (path));
     if (!stream->isValid()) {
         SkDELETE(stream);
         return NULL;
     }
-    return SkNEW_ARGS(SkDocument_PDF, (stream, delete_wstream, enc));
+    return SkNEW_ARGS(SkDocument_PDF, (stream, delete_wstream, enc, dpi));
 }