Move PlatformCanvas and PlatformDevice from base/gfx to webkit/port. I left h...

base/gfx/platform_device_win.cc

Index: base/gfx/platform_device_win.cc
===================================================================
--- base/gfx/platform_device_win.cc	(revision 5678)
+++ base/gfx/platform_device_win.cc	(working copy)
@@ -1,229 +0,0 @@
-// 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 "base/gfx/platform_device_win.h"
-
-#include "base/logging.h"
-#include "base/gfx/skia_utils.h"
-#include "SkMatrix.h"
-#include "SkPath.h"
-#include "SkRegion.h"
-#include "SkUtils.h"
-
-namespace gfx {
-
-PlatformDeviceWin::PlatformDeviceWin(const SkBitmap& bitmap)
-    : SkDevice(bitmap) {
-}
-
-// static
-void PlatformDeviceWin::InitializeDC(HDC context) {
-  // Enables world transformation.
-  // If the GM_ADVANCED graphics mode is set, GDI always draws arcs in the
-  // counterclockwise direction in logical space. This is equivalent to the
-  // statement that, in the GM_ADVANCED graphics mode, both arc control points
-  // and arcs themselves fully respect the device context's world-to-device
-  // transformation.
-  BOOL res = SetGraphicsMode(context, GM_ADVANCED);
-  DCHECK_NE(res, 0);
-
-  // Enables dithering.
-  res = SetStretchBltMode(context, HALFTONE);
-  DCHECK_NE(res, 0);
-  // As per SetStretchBltMode() documentation, SetBrushOrgEx() must be called
-  // right after.
-  res = SetBrushOrgEx(context, 0, 0, NULL);
-  DCHECK_NE(res, 0);
-
-  // Sets up default orientation.
-  res = SetArcDirection(context, AD_CLOCKWISE);
-  DCHECK_NE(res, 0);
-
-  // Sets up default colors.
-  res = SetBkColor(context, RGB(255, 255, 255));
-  DCHECK_NE(res, CLR_INVALID);
-  res = SetTextColor(context, RGB(0, 0, 0));
-  DCHECK_NE(res, CLR_INVALID);
-  res = SetDCBrushColor(context, RGB(255, 255, 255));
-  DCHECK_NE(res, CLR_INVALID);
-  res = SetDCPenColor(context, RGB(0, 0, 0));
-  DCHECK_NE(res, CLR_INVALID);
-
-  // Sets up default transparency.
-  res = SetBkMode(context, OPAQUE);
-  DCHECK_NE(res, 0);
-  res = SetROP2(context, R2_COPYPEN);
-  DCHECK_NE(res, 0);
-}
-
-// static
-void PlatformDeviceWin::LoadPathToDC(HDC context, const SkPath& path) {
-  switch (path.getFillType()) {
-    case SkPath::kWinding_FillType: {
-      int res = SetPolyFillMode(context, WINDING);
-      DCHECK(res != 0);
-      break;
-    }
-    case SkPath::kEvenOdd_FillType: {
-      int res = SetPolyFillMode(context, ALTERNATE);
-      DCHECK(res != 0);
-      break;
-    }
-    default: {
-      NOTREACHED();
-      break;
-    }
-  }
-  BOOL res = BeginPath(context);
-  DCHECK(res != 0);
-
-  CubicPaths paths;
-  if (!SkPathToCubicPaths(&paths, path))
-    return;
-
-  std::vector<POINT> points;
-  for (CubicPaths::const_iterator path(paths.begin()); path != paths.end();
-       ++path) {
-    if (!path->size())
-      continue;
-    // DCHECK_EQ(points.size() % 4, 0);
-    points.resize(0);
-    points.reserve(path->size() * 3 / 4 + 1);
-    points.push_back(SkPointToPOINT(path->front().p[0]));
-    for (CubicPath::const_iterator point(path->begin()); point != path->end();
-       ++point) {
-      // Never add point->p[0]
-      points.push_back(SkPointToPOINT(point->p[1]));
-      points.push_back(SkPointToPOINT(point->p[2]));
-      points.push_back(SkPointToPOINT(point->p[3]));
-    }
-    DCHECK_EQ((points.size() - 1) % 3, 0);
-    // This is slightly inefficient since all straight line and quadratic lines
-    // are "upgraded" to a cubic line.
-    // TODO(maruel):  http://b/1147346 We should use
-    // PolyDraw/PolyBezier/Polyline whenever possible.
-    res = PolyBezier(context, &points.front(),
-                     static_cast<DWORD>(points.size()));
-    DCHECK_NE(res, 0);
-    if (res == 0)
-      break;
-  }
-  if (res == 0) {
-    // Make sure the path is discarded.
-    AbortPath(context);
-  } else {
-    res = EndPath(context);
-    DCHECK(res != 0);
-  }
-}
-
-// static
-void PlatformDeviceWin::LoadTransformToDC(HDC dc, const SkMatrix& matrix) {
-  XFORM xf;
-  xf.eM11 = matrix[SkMatrix::kMScaleX];
-  xf.eM21 = matrix[SkMatrix::kMSkewX];
-  xf.eDx = matrix[SkMatrix::kMTransX];
-  xf.eM12 = matrix[SkMatrix::kMSkewY];
-  xf.eM22 = matrix[SkMatrix::kMScaleY];
-  xf.eDy = matrix[SkMatrix::kMTransY];
-  SetWorldTransform(dc, &xf);
-}
-
-// static
-bool PlatformDeviceWin::SkPathToCubicPaths(CubicPaths* paths,
-                                        const SkPath& skpath) {
-  paths->clear();
-  CubicPath* current_path = NULL;
-  SkPoint current_points[4];
-  CubicPoints points_to_add;
-  SkPath::Iter iter(skpath, false);
-  for (SkPath::Verb verb = iter.next(current_points);
-       verb != SkPath::kDone_Verb;
-       verb = iter.next(current_points)) {
-    switch (verb) {
-      case SkPath::kMove_Verb: {  // iter.next returns 1 point
-        // Ignores it since the point is copied in the next operation. See
-        // SkPath::Iter::next() for reference.
-        paths->push_back(CubicPath());
-        current_path = &paths->back();
-        // Skip point addition.
-        continue;
-      }
-      case SkPath::kLine_Verb: {  // iter.next returns 2 points
-        points_to_add.p[0] = current_points[0];
-        points_to_add.p[1] = current_points[0];
-        points_to_add.p[2] = current_points[1];
-        points_to_add.p[3] = current_points[1];
-        break;
-      }
-      case SkPath::kQuad_Verb: {  // iter.next returns 3 points
-        points_to_add.p[0] = current_points[0];
-        points_to_add.p[1] = current_points[1];
-        points_to_add.p[2] = current_points[2];
-        points_to_add.p[3] = current_points[2];
-        break;
-      }
-      case SkPath::kCubic_Verb: {  // iter.next returns 4 points
-        points_to_add.p[0] = current_points[0];
-        points_to_add.p[1] = current_points[1];
-        points_to_add.p[2] = current_points[2];
-        points_to_add.p[3] = current_points[3];
-        break;
-      }
-      case SkPath::kClose_Verb: {  // iter.next returns 1 point (the last point)
-        paths->push_back(CubicPath());
-        current_path = &paths->back();
-        continue;
-      }
-      case SkPath::kDone_Verb:  // iter.next returns 0 points
-      default: {
-        current_path = NULL;
-        // Will return false.
-        break;
-      }
-    }
-    DCHECK(current_path);
-    if (!current_path) {
-      paths->clear();
-      return false;
-    }
-    current_path->push_back(points_to_add);
-  }
-  return true;
-}
-
-// static
-void PlatformDeviceWin::LoadClippingRegionToDC(HDC context,
-                                            const SkRegion& region,
-                                            const SkMatrix& transformation) {
-  HRGN hrgn;
-  if (region.isEmpty()) {
-    // region can be empty, in which case everything will be clipped.
-    hrgn = CreateRectRgn(0, 0, 0, 0);
-  } else if (region.isRect()) {
-    // Do the transformation.
-    SkRect rect;
-    rect.set(region.getBounds());
-    transformation.mapRect(&rect);
-    SkIRect irect;
-    rect.round(&irect);
-    hrgn = CreateRectRgnIndirect(&SkIRectToRECT(irect));
-  } else {
-    // It is complex.
-    SkPath path;
-    region.getBoundaryPath(&path);
-    // Clip. Note that windows clipping regions are not affected by the
-    // transform so apply it manually.
-    path.transform(transformation);
-    LoadPathToDC(context, path);
-    hrgn = PathToRegion(context);
-  }
-  int result = SelectClipRgn(context, hrgn);
-  DCHECK_NE(result, ERROR);
-  result = DeleteObject(hrgn);
-  DCHECK_NE(result, 0);
-}
-
-}  // namespace gfx
-