Revert 78859 - Unfork VectorPlatformCanvas.

Unfork VectorPlatformCanvas by making NativeMetafile know how to create an appropriate VectorPlatformDevice. This will also be useful when we have multiple NativeMetafile implemenations (each requiring a different VectorPlatformDevices).

BUG=NONE
TEST=NONE

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=78662
Reverted: http://src.chromium.org/viewvc/chrome?view=rev&revision=78663

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=78812
Reverted: http://src.chromium.org/viewvc/chrome?view=rev&revision=78815

Review URL: http://codereview.chromium.org/6665046

TBR=vandebo@chromium.org
Review URL: http://codereview.chromium.org/6711067

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@78860 0039d316-1c4b-4281-b951-d872f2087c98

19 files changed, 153 insertions, 92 deletions

diff --git a/chrome/renderer/print_web_view_helper_linux.cc b/chrome/renderer/print_web_view_helper_linux.cc
index 555f419..970b47c 100644
--- a/chrome/renderer/print_web_view_helper_linux.cc
+++ b/chrome/renderer/print_web_view_helper_linux.cc
@@ -220,14 +220,15 @@ void PrintWebViewHelper::PrintPage(const ViewMsg_PrintPage_Params& params,
           margin_left_in_points,
       content_height_in_points + margin_top_in_points +
           margin_bottom_in_points);
-  gfx::Point content_origin(margin_left_in_points, margin_top_in_points);
 
-  skia::PlatformDevice* device = metafile->StartPageForVectorCanvas(
-      page_size, content_origin, 1.0f);
-  if (!device)
+  gfx::Point content_origin(margin_top_in_points, margin_left_in_points);
+
+  if (!metafile->StartPage(page_size, content_origin, 1))
     return;
 
-  canvas->reset(new skia::VectorCanvas(device));
+  canvas->reset(new skia::VectorCanvas(metafile->context(),
+                                       canvas_size.width(),
+                                       canvas_size.height()));
   frame->printPage(params.page_number, canvas->get());
 
   // TODO(myhuang): We should handle transformation for paper margins.
diff --git a/chrome/renderer/print_web_view_helper_win.cc b/chrome/renderer/print_web_view_helper_win.cc
index 2e87939..d4b37db 100644
--- a/chrome/renderer/print_web_view_helper_win.cc
+++ b/chrome/renderer/print_web_view_helper_win.cc
@@ -197,7 +197,8 @@ void PrintWebViewHelper::CreatePreviewDocument(
 void PrintWebViewHelper::RenderPage(
     const ViewMsg_Print_Params& params, float* scale_factor, int page_number,
     WebFrame* frame, scoped_ptr<printing::NativeMetafile>* metafile) {
-  DCHECK(metafile->get()->context());
+  HDC hdc = (*metafile)->context();
+  DCHECK(hdc);
 
   double content_width_in_points;
   double content_height_in_points;
@@ -215,14 +216,49 @@ void PrintWebViewHelper::RenderPage(
   int width = static_cast<int>(content_width_in_points * params.max_shrink);
   int height = static_cast<int>(content_height_in_points * params.max_shrink);
 
-  gfx::Size page_size(width, height);
-  gfx::Point content_origin(static_cast<int>(margin_left_in_points),
-                            static_cast<int>(margin_top_in_points));
-  skia::PlatformDevice* device = (*metafile)->StartPageForVectorCanvas(
-      page_size, content_origin, 1.0f);
-  DCHECK(device);
-  skia::VectorCanvas canvas(device);
+  bool result = (*metafile)->StartPage(
+      gfx::Size(width, height),
+      gfx::Point(static_cast<int>(margin_top_in_points),
+                 static_cast<int>(margin_left_in_points)),
+      *scale_factor);
+  DCHECK(result);
+
+#if 0
+  // TODO(maruel): This code is kept for testing until the 100% GDI drawing
+  // code is stable. maruels use this code's output as a reference when the
+  // GDI drawing code fails.
+
+  // Mix of Skia and GDI based.
+  skia::PlatformCanvas canvas(width, height, true);
+  canvas.drawARGB(255, 255, 255, 255, SkXfermode::kSrc_Mode);
+  float webkit_scale_factor = frame->printPage(page_number, &canvas);
+  if (*scale_factor <= 0 || webkit_scale_factor <= 0) {
+    NOTREACHED() << "Printing page " << page_number << " failed.";
+  } else {
+    // Update the dpi adjustment with the "page |scale_factor|" calculated in
+    // webkit.
+    *scale_factor /= webkit_scale_factor;
+  }
 
+  // Create a BMP v4 header that we can serialize.
+  BITMAPV4HEADER bitmap_header;
+  gfx::CreateBitmapV4Header(width, height, &bitmap_header);
+  const SkBitmap& src_bmp = canvas.getDevice()->accessBitmap(true);
+  SkAutoLockPixels src_lock(src_bmp);
+  int retval = StretchDIBits(hdc,
+                             0,
+                             0,
+                             width, height,
+                             0, 0,
+                             width, height,
+                             src_bmp.getPixels(),
+                             reinterpret_cast<BITMAPINFO*>(&bitmap_header),
+                             DIB_RGB_COLORS,
+                             SRCCOPY);
+  DCHECK(retval != GDI_ERROR);
+#else
+  // 100% GDI based.
+  skia::VectorCanvas canvas(hdc, width, height);
   float webkit_scale_factor = frame->printPage(page_number, &canvas);
   if (*scale_factor <= 0 || webkit_scale_factor <= 0) {
     NOTREACHED() << "Printing page " << page_number << " failed.";
@@ -231,12 +267,13 @@ void PrintWebViewHelper::RenderPage(
     // webkit.
     *scale_factor /= webkit_scale_factor;
   }
+#endif
 
-  bool result = (*metafile)->FinishPage();
+  result = (*metafile)->FinishPage();
   DCHECK(result);
 
   skia::VectorPlatformDevice* platform_device =
-      static_cast<skia::VectorPlatformDevice*>(device);
+      static_cast<skia::VectorPlatformDevice*>(canvas.getDevice());
   if (platform_device->alpha_blend_used() && !params.supports_alpha_blend) {
     // Close the device context to retrieve the compiled metafile.
     if (!(*metafile)->FinishDocument())
diff --git a/printing/emf_win.cc b/printing/emf_win.cc
index 8609c34..de652f1 100644
--- a/printing/emf_win.cc
+++ b/printing/emf_win.cc
@@ -9,7 +9,6 @@
 #include "base/metrics/histogram.h"
 #include "base/scoped_ptr.h"
 #include "base/time.h"
-#include "skia/ext/vector_platform_device_win.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/codec/jpeg_codec.h"
 #include "ui/gfx/codec/png_codec.h"
@@ -413,21 +412,10 @@ bool Emf::Record::SafePlayback(const XFORM* base_matrix) const {
   return res;
 }
 
-skia::PlatformDevice* Emf::StartPageForVectorCanvas(
-    const gfx::Size& page_size, const gfx::Point& content_origin,
-    const float& scale_factor) {
-  if (!StartPage(page_size, content_origin, scale_factor))
-    return NULL;
-
-  return skia::VectorPlatformDeviceFactory::CreateDevice(page_size.width(),
-                                                         page_size.height(),
-                                                         true, hdc_);
-}
-
 bool Emf::StartPage(const gfx::Size& /*page_size*/,
                     const gfx::Point& /*content_origin*/,
                     const float& scale_factor) {
-  DCHECK_EQ(1.0f, scale_factor);  // We don't support scaling here.
+  DCHECK_EQ(scale_factor, 1);
   DCHECK(hdc_);
   if (!hdc_)
     return false;
diff --git a/printing/emf_win.h b/printing/emf_win.h
index f2ccffd..e3a0a8e 100644
--- a/printing/emf_win.h
+++ b/printing/emf_win.h
@@ -35,9 +35,6 @@ class Emf : public NativeMetafile {
   virtual bool Init() { return true; }
   virtual bool InitFromData(const void* src_buffer, uint32 src_buffer_size);
 
-  virtual skia::PlatformDevice* StartPageForVectorCanvas(
-      const gfx::Size& page_size, const gfx::Point& content_origin,
-      const float& scale_factor);
   // Inserts a custom GDICOMMENT records indicating StartPage/EndPage calls
   // (since StartPage and EndPage do not work in a metafile DC). Only valid
   // when hdc_ is non-NULL. |page_size| and |content_origin| are ignored.
diff --git a/printing/native_metafile.h b/printing/native_metafile.h
index 742ee27..ef1e546 100644
--- a/printing/native_metafile.h
+++ b/printing/native_metafile.h
@@ -26,10 +26,6 @@ class Rect;
 class Size;
 }
 
-namespace skia {
-class PlatformDevice;
-}
-
 #if defined(OS_CHROMEOS)
 namespace base {
 class  FileDescriptor;
@@ -54,13 +50,6 @@ class NativeMetafile {
   // Note: It should only be called from within the browser process.
   virtual bool InitFromData(const void* src_buffer, uint32 src_buffer_size) = 0;
 
-  // This method calls StartPage and then returns an appropriate
-  // VectorPlatformDevice implementation bound to the context created by
-  // StartPage or NULL on error.
-  virtual skia::PlatformDevice* StartPageForVectorCanvas(
-      const gfx::Size& page_size, const gfx::Point& content_origin,
-      const float& scale_factor) = 0;
-
   // Prepares a context for rendering a new page at the specified
   // |content_origin| with the given |page_size| and a |scale_factor| to use for
   // the drawing. The units are in points (=1/72 in). Returns true on success.
diff --git a/printing/pdf_metafile_mac.cc b/printing/pdf_metafile_mac.cc
index 913f6aa..f5a36f8 100644
--- a/printing/pdf_metafile_mac.cc
+++ b/printing/pdf_metafile_mac.cc
@@ -62,13 +62,6 @@ bool PdfMetafile::InitFromData(const void* src_buffer, uint32 src_buffer_size) {
   return true;
 }
 
-skia::PlatformDevice* PdfMetafile::StartPageForVectorCanvas(
-    const gfx::Size& page_size, const gfx::Point& content_origin,
-    const float& scale_factor) {
-  NOTIMPLEMENTED();
-  return NULL;
-}
-
 bool PdfMetafile::StartPage(const gfx::Size& page_size,
                             const gfx::Point& content_origin,
                             const float& scale_factor) {
diff --git a/printing/pdf_metafile_mac.h b/printing/pdf_metafile_mac.h
index 496b275..c5a2a4a 100644
--- a/printing/pdf_metafile_mac.h
+++ b/printing/pdf_metafile_mac.h
@@ -33,10 +33,6 @@ class PdfMetafile : public NativeMetafile {
   virtual bool Init();
   virtual bool InitFromData(const void* src_buffer, uint32 src_buffer_size);
 
-  // Not implemented on mac.
-  virtual skia::PlatformDevice* StartPageForVectorCanvas(
-      const gfx::Size& page_size, const gfx::Point& content_origin,
-      const float& scale_factor);
   virtual bool StartPage(const gfx::Size& page_size,
                          const gfx::Point& content_origin,
                          const float& scale_factor);
diff --git a/printing/pdf_ps_metafile_cairo.cc b/printing/pdf_ps_metafile_cairo.cc
index 4a8a1ff..6c42bd4 100644
--- a/printing/pdf_ps_metafile_cairo.cc
+++ b/printing/pdf_ps_metafile_cairo.cc
@@ -145,18 +145,6 @@ bool PdfPsMetafile::SetRawData(const void* src_buffer,
   return true;
 }
 
-skia::PlatformDevice* PdfPsMetafile::StartPageForVectorCanvas(
-    const gfx::Size& page_size, const gfx::Point& content_origin,
-    const float& scale_factor) {
-  if (!StartPage(page_size, content_origin, scale_factor))
-    return NULL;
-
-  return skia::VectorPlatformDeviceFactory::CreateDevice(context_,
-                                                         page_size.width(),
-                                                         page_size.height(),
-                                                         true);
-}
-
 bool PdfPsMetafile::StartPage(const gfx::Size& page_size,
                               const gfx::Point& content_origin,
                               const float& scale_factor) {
diff --git a/printing/pdf_ps_metafile_cairo.h b/printing/pdf_ps_metafile_cairo.h
index 3e1e811..5ff59db 100644
--- a/printing/pdf_ps_metafile_cairo.h
+++ b/printing/pdf_ps_metafile_cairo.h
@@ -31,9 +31,6 @@ class PdfPsMetafile : public NativeMetafile {
   virtual bool Init();
   virtual bool InitFromData(const void* src_buffer, uint32 src_buffer_size);
 
-  virtual skia::PlatformDevice* StartPageForVectorCanvas(
-      const gfx::Size& page_size, const gfx::Point& content_origin,
-      const float& scale_factor);
   virtual bool StartPage(const gfx::Size& page_size,
                          const gfx::Point& content_origin,
                          const float& scale_factor);
diff --git a/skia/ext/vector_canvas.cc b/skia/ext/vector_canvas.cc
index 216a2ee..851da79 100644
--- a/skia/ext/vector_canvas.cc
+++ b/skia/ext/vector_canvas.cc
@@ -4,13 +4,13 @@
 
 #include "skia/ext/vector_canvas.h"
 
-#include "skia/ext/vector_platform_device.h"
-
 namespace skia {
 
-VectorCanvas::VectorCanvas(PlatformDevice* device)
-    : PlatformCanvas(device->getDeviceFactory()) {
-  setDevice(device)->unref(); // Created with refcount 1, and setDevice refs.
+VectorCanvas::VectorCanvas()
+    : PlatformCanvas(SkNEW(VectorPlatformDeviceFactory)) {
+}
+
+VectorCanvas::VectorCanvas(SkDeviceFactory* factory) : PlatformCanvas(factory) {
 }
 
 VectorCanvas::~VectorCanvas() {
diff --git a/skia/ext/vector_canvas.h b/skia/ext/vector_canvas.h
index 4b4419d..4f8bc7a 100644
--- a/skia/ext/vector_canvas.h
+++ b/skia/ext/vector_canvas.h
@@ -7,10 +7,13 @@
 #pragma once
 
 #include "skia/ext/platform_canvas.h"
+#include "skia/ext/vector_platform_device.h"
 
-namespace skia {
+#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__)
+typedef struct _cairo cairo_t;
+#endif
 
-class PlatformDevice;
+namespace skia {
 
 // This class is a specialization of the regular PlatformCanvas. It is designed
 // to work with a VectorDevice to manage platform-specific drawing. It allows
@@ -18,10 +21,24 @@ class PlatformDevice;
 // support reading back from the bitmap backstore since it is not used.
 class SK_API VectorCanvas : public PlatformCanvas {
  public:
-  // Ownership of |device| is transfered to VectorCanvas.
-  explicit VectorCanvas(PlatformDevice* device);
+  VectorCanvas();
+  explicit VectorCanvas(SkDeviceFactory* factory);
+#if defined(WIN32)
+  VectorCanvas(HDC dc, int width, int height);
+#elif defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__)
+  // Caller owns |context|. Ownership is not transferred.
+  VectorCanvas(cairo_t* context, int width, int height);
+#endif
   virtual ~VectorCanvas();
 
+  // For two-part init, call if you use the no-argument constructor above
+#if defined(WIN32)
+  bool initialize(HDC context, int width, int height);
+#elif defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__)
+  // Ownership of |context| is not transferred.
+  bool initialize(cairo_t* context, int width, int height);
+#endif
+
   virtual SkBounder* setBounder(SkBounder* bounder);
   virtual SkDrawFilter* setDrawFilter(SkDrawFilter* filter);
 
diff --git a/skia/ext/vector_canvas_linux.cc b/skia/ext/vector_canvas_linux.cc
new file mode 100644
index 0000000..aff4fbe
--- /dev/null
+++ b/skia/ext/vector_canvas_linux.cc
@@ -0,0 +1,28 @@
+// Copyright (c) 2009 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 "skia/ext/vector_canvas.h"
+
+#include "skia/ext/vector_platform_device.h"
+
+namespace skia {
+
+VectorCanvas::VectorCanvas(cairo_t* context, int width, int height) {
+  bool initialized = initialize(context, width, height);
+
+  SkASSERT(initialized);
+}
+
+bool VectorCanvas::initialize(cairo_t* context, int width, int height) {
+  SkDevice* device = VectorPlatformDeviceFactory::CreateDevice(context, width,
+                                                               height, true);
+  if (!device)
+    return false;
+
+  setDevice(device);
+  device->unref();  // was created with refcount 1, and setDevice also refs
+  return true;
+}
+
+}  // namespace skia
diff --git a/skia/ext/vector_canvas_unittest.cc b/skia/ext/vector_canvas_unittest.cc
index 1066c0c..0266c81 100644
--- a/skia/ext/vector_canvas_unittest.cc
+++ b/skia/ext/vector_canvas_unittest.cc
@@ -14,7 +14,6 @@
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "skia/ext/vector_canvas.h"
-#include "skia/ext/vector_platform_device.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/effects/SkDashPathEffect.h"
 #include "ui/gfx/codec/png_codec.h"
@@ -387,8 +386,7 @@ class VectorCanvasTest : public ImageTest {
     size_ = size;
     context_ = new Context();
     bitmap_ = new Bitmap(*context_, size_, size_);
-    vcanvas_ = new VectorCanvas(VectorPlatformDeviceFactory::CreateDevice(
-        size_, size_, true, context_->context()));
+    vcanvas_ = new VectorCanvas(context_->context(), size_, size_);
     pcanvas_ = new PlatformCanvas(size_, size_, false);
 
     // Clear white.
@@ -454,8 +452,7 @@ TEST_F(VectorCanvasTest, Uninitialized) {
 
   context_ = new Context();
   bitmap_ = new Bitmap(*context_, size_, size_);
-  vcanvas_ = new VectorCanvas(VectorPlatformDeviceFactory::CreateDevice(
-      size_, size_, true, context_->context()));
+  vcanvas_ = new VectorCanvas(context_->context(), size_, size_);
   pcanvas_ = new PlatformCanvas(size_, size_, false);
 
   // VectorCanvas default initialization is black.
diff --git a/skia/ext/vector_canvas_win.cc b/skia/ext/vector_canvas_win.cc
new file mode 100644
index 0000000..400b2a4
--- /dev/null
+++ b/skia/ext/vector_canvas_win.cc
@@ -0,0 +1,30 @@
+// Copyright (c) 2006-2009 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 "skia/ext/vector_canvas.h"
+
+#include "skia/ext/bitmap_platform_device.h"
+#include "skia/ext/vector_platform_device.h"
+
+namespace skia {
+
+VectorCanvas::VectorCanvas(HDC dc, int width, int height) {
+  bool initialized = initialize(dc, width, height);
+  if (!initialized)
+    __debugbreak();
+}
+
+bool VectorCanvas::initialize(HDC context, int width, int height) {
+  SkDevice* device = VectorPlatformDeviceFactory::CreateDevice(width, height,
+                                                               true, context);
+  if (!device)
+    return false;
+
+  setDevice(device);
+  device->unref();  // was created with refcount 1, and setDevice also refs
+  return true;
+}
+
+}  // namespace skia
+
diff --git a/skia/ext/vector_platform_device_linux.cc b/skia/ext/vector_platform_device_linux.cc
index bc6a41e..068ae89 100644
--- a/skia/ext/vector_platform_device_linux.cc
+++ b/skia/ext/vector_platform_device_linux.cc
@@ -78,9 +78,9 @@ SkDevice* VectorPlatformDeviceFactory::newDevice(SkCanvas* ignored,
 }
 
 // static
-PlatformDevice* VectorPlatformDeviceFactory::CreateDevice(cairo_t* context,
-                                                          int width, int height,
-                                                          bool isOpaque) {
+SkDevice* VectorPlatformDeviceFactory::CreateDevice(cairo_t* context,
+                                                    int width, int height,
+                                                    bool isOpaque) {
   // TODO(myhuang): Here we might also have similar issues as those on Windows
   // (vector_canvas_win.cc, http://crbug.com/18382 & http://crbug.com/18383).
   // Please note that is_opaque is true when we use this class for printing.
diff --git a/skia/ext/vector_platform_device_linux.h b/skia/ext/vector_platform_device_linux.h
index ae2bafb..222f68f 100644
--- a/skia/ext/vector_platform_device_linux.h
+++ b/skia/ext/vector_platform_device_linux.h
@@ -15,8 +15,8 @@ namespace skia {
 
 class VectorPlatformDeviceFactory : public SkDeviceFactory {
  public:
-  static PlatformDevice* CreateDevice(cairo_t* context, int width, int height,
-                                      bool isOpaque);
+  static SkDevice* CreateDevice(cairo_t* context, int width, int height,
+                                bool isOpaque);
 
   // Overridden from SkDeviceFactory:
   virtual SkDevice* newDevice(SkCanvas* ignored, SkBitmap::Config config,
diff --git a/skia/ext/vector_platform_device_win.cc b/skia/ext/vector_platform_device_win.cc
index 90f824e..2476152 100644
--- a/skia/ext/vector_platform_device_win.cc
+++ b/skia/ext/vector_platform_device_win.cc
@@ -22,8 +22,9 @@ SkDevice* VectorPlatformDeviceFactory::newDevice(SkCanvas* unused,
 }
 
 //static
-PlatformDevice* VectorPlatformDeviceFactory::CreateDevice(
-        int width, int height, bool is_opaque, HANDLE shared_section) {
+SkDevice* VectorPlatformDeviceFactory::CreateDevice(int width, int height,
+                                                    bool is_opaque,
+                                                    HANDLE shared_section) {
   if (!is_opaque) {
     // TODO(maruel):  http://crbug.com/18382 When restoring a semi-transparent
     // layer, i.e. merging it, we need to rasterize it because GDI doesn't
diff --git a/skia/ext/vector_platform_device_win.h b/skia/ext/vector_platform_device_win.h
index 83d51f7..6045f24 100644
--- a/skia/ext/vector_platform_device_win.h
+++ b/skia/ext/vector_platform_device_win.h
@@ -13,13 +13,13 @@
 
 namespace skia {
 
-class SK_API VectorPlatformDeviceFactory : public SkDeviceFactory {
+class VectorPlatformDeviceFactory : public SkDeviceFactory {
  public:
   virtual SkDevice* newDevice(SkCanvas* ignored, SkBitmap::Config config,
                               int width, int height,
                               bool isOpaque, bool isForLayer) OVERRIDE;
-  static PlatformDevice* CreateDevice(int width, int height, bool isOpaque,
-                                      HANDLE shared_section);
+  static SkDevice* CreateDevice(int width, int height, bool isOpaque,
+                                HANDLE shared_section);
 };
 
 // A device is basically a wrapper around SkBitmap that provides a surface for
diff --git a/skia/skia.gyp b/skia/skia.gyp
index 628bf9b..f28ffd2 100644
--- a/skia/skia.gyp
+++ b/skia/skia.gyp
@@ -642,6 +642,8 @@
         'ext/skia_utils_win.h',
         'ext/vector_canvas.cc',
         'ext/vector_canvas.h',
+        'ext/vector_canvas_linux.cc',
+        'ext/vector_canvas_win.cc',
         'ext/vector_platform_device.h',
         'ext/vector_platform_device_linux.cc',
         'ext/vector_platform_device_linux.h',