Create a Factory for NativeMetafile.

printing/emf_win_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "printing/emf_win.h"
 
 // For quick access.
 #include <wingdi.h>
 #include <winspool.h>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/scoped_ptr.h"
 #include "base/scoped_temp_dir.h"
 #include "base/win/scoped_hdc.h"
+#include "printing/native_metafile_factory.h"
 #include "printing/printing_context.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 // This test is automatically disabled if no printer named "UnitTest Printer" is
 // available.
 class EmfPrintingTest : public testing::Test {
  public:
   typedef testing::Test Parent;
@@ skipping 125 matching lines @@
   // the queue.
   HANDLE printer = NULL;
   if (::OpenPrinter(L"UnitTest Printer", &printer, NULL)) {
     ::SetJob(printer, job_id, 0, NULL, JOB_CONTROL_DELETE);
     ClosePrinter(printer);
   }
 }
 
 TEST(EmfTest, FileBackedDC) {
   // Simplest use case.
-  printing::Emf emf;
+  scoped_ptr<printing::NativeMetafile> emf(
+        printing::NativeMetafileFactory::CreateMetafile());
   RECT rect = {100, 100, 200, 200};
   HDC hdc = CreateCompatibleDC(NULL);
   EXPECT_TRUE(hdc != NULL);
   ScopedTempDir scratch_metafile_dir;
   ASSERT_TRUE(scratch_metafile_dir.CreateUniqueTempDir());
   FilePath metafile_path;
   EXPECT_TRUE(file_util::CreateTemporaryFileInDir(scratch_metafile_dir.path(),
                                                   &metafile_path));
-  EXPECT_TRUE(emf.CreateFileBackedDc(hdc, &rect, metafile_path));
-  EXPECT_TRUE(emf.hdc() != NULL);
+  EXPECT_TRUE(emf->CreateFileBackedDc(hdc, &rect, metafile_path));
+  EXPECT_TRUE(emf->hdc() != NULL);
   // In theory, you'd use the HDC with GDI functions here.
-  EXPECT_TRUE(emf.CloseDc());
+  EXPECT_TRUE(emf->CloseDc());
 
-  uint32 size = emf.GetDataSize();
+  uint32 size = emf->GetDataSize();
   EXPECT_EQ(size, EMF_HEADER_SIZE);
   std::vector<BYTE> data;
-  EXPECT_TRUE(emf.GetData(&data));
+  EXPECT_TRUE(emf->GetData(&data));
   EXPECT_EQ(data.size(), size);
-  emf.CloseEmf();
+  emf->CloseEmf();
   int64 file_size = 0;
   file_util::GetFileSize(metafile_path, &file_size);
   EXPECT_EQ(size, file_size);
   EXPECT_TRUE(DeleteDC(hdc));
 
   // Playback the data.
   hdc = CreateCompatibleDC(NULL);
   EXPECT_TRUE(hdc);
-  EXPECT_TRUE(emf.CreateFromFile(metafile_path));
+  EXPECT_TRUE(emf->CreateFromFile(metafile_path));
   RECT output_rect = {0, 0, 10, 10};
-  EXPECT_TRUE(emf.Playback(hdc, &output_rect));
+  EXPECT_TRUE(emf->Playback(hdc, &output_rect));
   EXPECT_TRUE(DeleteDC(hdc));
-  emf.CloseEmf();
+  emf->CloseEmf();
 }
-