DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Header

Mercurial (72ee4800d415)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "PrintTargetThebes.h"

#include "gfxASurface.h"
#include "gfxPlatform.h"
#include "mozilla/gfx/Logging.h"

namespace mozilla {
namespace gfx {

/* static */ already_AddRefed<PrintTargetThebes>
PrintTargetThebes::CreateOrNull(gfxASurface* aSurface)
{
  MOZ_ASSERT(aSurface);

  if (!aSurface || aSurface->CairoStatus()) {
    return nullptr;
  }

  RefPtr<PrintTargetThebes> target = new PrintTargetThebes(aSurface);

  return target.forget();
}

PrintTargetThebes::PrintTargetThebes(gfxASurface* aSurface)
  : PrintTarget(nullptr, aSurface->GetSize())
  , mGfxSurface(aSurface)
{
}

already_AddRefed<DrawTarget>
PrintTargetThebes::MakeDrawTarget(const IntSize& aSize,
                                  DrawEventRecorder* aRecorder)
{
  // This should not be called outside of BeginPage()/EndPage() calls since
  // some backends can only provide a valid DrawTarget at that time.
  MOZ_ASSERT(mHasActivePage, "We can't guarantee a valid DrawTarget");

  RefPtr<gfx::DrawTarget> dt =
    gfxPlatform::GetPlatform()->CreateDrawTargetForSurface(mGfxSurface, aSize);
  if (!dt || !dt->IsValid()) {
    return nullptr;
  }

  if (aRecorder) {
    dt = CreateWrapAndRecordDrawTarget(aRecorder, dt);
    if (!dt || !dt->IsValid()) {
      return nullptr;
    }
  }

  return dt.forget();
}

already_AddRefed<DrawTarget>
PrintTargetThebes::GetReferenceDrawTarget(DrawEventRecorder* aRecorder)
{
  if (!mRefDT) {
    RefPtr<gfx::DrawTarget> dt =
      gfxPlatform::GetPlatform()->CreateDrawTargetForSurface(mGfxSurface, mSize);
    if (!dt || !dt->IsValid()) {
      return nullptr;
    }
    mRefDT = dt->CreateSimilarDrawTarget(IntSize(1,1), dt->GetFormat());
  }

  if (aRecorder) {
    if (!mRecordingRefDT) {
      RefPtr<DrawTarget> dt = CreateWrapAndRecordDrawTarget(aRecorder, mRefDT);
      if (!dt || !dt->IsValid()) {
        return nullptr;
      }
      mRecordingRefDT = dt.forget();
#ifdef DEBUG
      mRecorder = aRecorder;
#endif
    }
#ifdef DEBUG
    else {
      MOZ_ASSERT(aRecorder == mRecorder,
                 "Caching mRecordingRefDT assumes the aRecorder is an invariant");
    }
#endif

    return do_AddRef(mRecordingRefDT);
  }

  return do_AddRef(mRefDT);
}

nsresult
PrintTargetThebes::BeginPrinting(const nsAString& aTitle,
                                 const nsAString& aPrintToFileName,
                                 int32_t aStartPage,
                                 int32_t aEndPage)
{
  return mGfxSurface->BeginPrinting(aTitle, aPrintToFileName);
}

nsresult
PrintTargetThebes::EndPrinting()
{
  return mGfxSurface->EndPrinting();
}

nsresult
PrintTargetThebes::AbortPrinting()
{
#ifdef DEBUG
  mHasActivePage = false;
#endif
  return mGfxSurface->AbortPrinting();
}

nsresult
PrintTargetThebes::BeginPage()
{
#ifdef DEBUG
  mHasActivePage = true;
#endif
  return mGfxSurface->BeginPage();
}

nsresult
PrintTargetThebes::EndPage()
{
#ifdef DEBUG
  mHasActivePage = false;
#endif
  return mGfxSurface->EndPage();
}

void
PrintTargetThebes::Finish()
{
  return mGfxSurface->Finish();
}

} // namespace gfx
} // namespace mozilla