Move Emf class to the printing library. Also creates a platform agnostic Nat...

chrome/common/gfx/emf_unittest.cc

-// Copyright (c) 2006-2008 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 "chrome/common/gfx/emf.h"
-
-// For quick access.
-#include <wingdi.h>
-
-#include "base/basictypes.h"
-#include "base/file_util.h"
-#include "base/path_service.h"
-#include "chrome/browser/printing/win_printing_context.h"
-#include "chrome/common/chrome_paths.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;
-  static bool IsTestCaseDisabled() {
-    // It is assumed this printer is a HP Color LaserJet 4550 PCL or 4700.
-    HDC hdc = CreateDC(L"WINSPOOL", L"UnitTest Printer", NULL, NULL);
-    if (!hdc)
-      return true;
-    DeleteDC(hdc);
-    return false;
-  }
-};
-
-}  // namespace
-
-TEST(EmfTest, DC) {
-  static const int EMF_HEADER_SIZE = 128;
-
-  // Simplest use case.
-  gfx::Emf emf;
-  RECT rect = {100, 100, 200, 200};
-  HDC hdc = CreateCompatibleDC(NULL);
-  EXPECT_TRUE(hdc != NULL);
-  EXPECT_TRUE(emf.CreateDc(hdc, &rect));
-  EXPECT_TRUE(emf.hdc() != NULL);
-  // In theory, you'd use the HDC with GDI functions here.
-  EXPECT_TRUE(emf.CloseDc());
-  unsigned size = emf.GetDataSize();
-  EXPECT_EQ(size, EMF_HEADER_SIZE);
-  std::vector<BYTE> data;
-  EXPECT_TRUE(emf.GetData(&data));
-  EXPECT_EQ(data.size(), size);
-  emf.CloseEmf();
-  EXPECT_TRUE(DeleteDC(hdc));
-
-  // Playback the data.
-  hdc = CreateCompatibleDC(NULL);
-  EXPECT_TRUE(hdc);
-  EXPECT_TRUE(emf.CreateFromData(&data.front(), size));
-  RECT output_rect = {0, 0, 10, 10};
-  EXPECT_TRUE(emf.Playback(hdc, &output_rect));
-  EXPECT_TRUE(DeleteDC(hdc));
-}
-
-
-// Disabled if no "UnitTest printer" exist. Useful to reproduce bug 1186598.
-TEST_F(EmfPrintingTest, Enumerate) {
-  if (IsTestCaseDisabled())
-    return;
-
-  printing::PrintSettings settings;
-
-  // My test case is a HP Color LaserJet 4550 PCL.
-  settings.set_device_name(L"UnitTest Printer");
-
-  // Initialize it.
-  printing::PrintingContext context;
-  EXPECT_EQ(context.InitWithSettings(settings), printing::PrintingContext::OK);
-
-  std::wstring test_file;
-  PathService::Get(chrome::DIR_TEST_DATA, &test_file);
-
-  // Load any EMF with an image.
-  gfx::Emf emf;
-  file_util::AppendToPath(&test_file, L"printing");
-  file_util::AppendToPath(&test_file, L"test4.emf");
-  std::string emf_data;
-  file_util::ReadFileToString(test_file, &emf_data);
-  ASSERT_TRUE(emf_data.size());
-  EXPECT_TRUE(emf.CreateFromData(&emf_data[0], emf_data.size()));
-
-  // This will print to file. The reason is that when running inside a
-  // unit_test, printing::PrintingContext automatically dumps its files to the
-  // current directory.
-  // TODO(maruel):  Clean the .PRN file generated in current directory.
-  context.NewDocument(L"EmfTest.Enumerate");
-  context.NewPage();
-  // Process one at a time.
-  gfx::Emf::Enumerator emf_enum(emf, context.context(),
-                                &emf.GetBounds().ToRECT());
-  for (gfx::Emf::Enumerator::const_iterator itr = emf_enum.begin();
-       itr != emf_enum.end();
-       ++itr) {
-    // To help debugging.
-    ptrdiff_t index = itr - emf_enum.begin();
-    // If you get this assert, you need to lookup iType in wingdi.h. It starts
-    // with EMR_HEADER.
-    EMR_HEADER;
-    EXPECT_TRUE(itr->SafePlayback(NULL)) <<
-        " index: " << index << " type: " << itr->record()->iType;
-  }
-  context.PageDone();
-  context.DocumentDone();
-}