зеркало из https://github.com/mozilla/gecko-dev.git
88 строки
2.3 KiB
C++
88 строки
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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 "PrintTranslator.h"
|
|
|
|
#include "gfxContext.h"
|
|
#include "nsDeviceContext.h"
|
|
#include "mozilla/gfx/RecordedEvent.h"
|
|
#include "mozilla/gfx/RecordingTypes.h"
|
|
#include "mozilla/UniquePtr.h"
|
|
|
|
using namespace mozilla::gfx;
|
|
|
|
namespace mozilla {
|
|
namespace layout {
|
|
|
|
PrintTranslator::PrintTranslator(nsDeviceContext* aDeviceContext)
|
|
: mDeviceContext(aDeviceContext)
|
|
{
|
|
RefPtr<gfxContext> context = mDeviceContext->CreateReferenceRenderingContext();
|
|
mBaseDT = context->GetDrawTarget();
|
|
}
|
|
|
|
bool
|
|
PrintTranslator::TranslateRecording(PRFileDescStream& aRecording)
|
|
{
|
|
uint32_t magicInt;
|
|
ReadElement(aRecording, magicInt);
|
|
if (magicInt != mozilla::gfx::kMagicInt) {
|
|
return false;
|
|
}
|
|
|
|
uint16_t majorRevision;
|
|
ReadElement(aRecording, majorRevision);
|
|
if (majorRevision != kMajorRevision) {
|
|
return false;
|
|
}
|
|
|
|
uint16_t minorRevision;
|
|
ReadElement(aRecording, minorRevision);
|
|
if (minorRevision > kMinorRevision) {
|
|
return false;
|
|
}
|
|
|
|
int32_t eventType;
|
|
ReadElement(aRecording, eventType);
|
|
while (aRecording.good()) {
|
|
UniquePtr<RecordedEvent> recordedEvent(
|
|
RecordedEvent::LoadEventFromStream(aRecording,
|
|
static_cast<RecordedEvent::EventType>(eventType)));
|
|
|
|
// Make sure that the whole event was read from the stream successfully.
|
|
if (!aRecording.good() || !recordedEvent) {
|
|
return false;
|
|
}
|
|
|
|
if (!recordedEvent->PlayEvent(this)) {
|
|
return false;
|
|
}
|
|
|
|
ReadElement(aRecording, eventType);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
already_AddRefed<DrawTarget>
|
|
PrintTranslator::CreateDrawTarget(ReferencePtr aRefPtr,
|
|
const gfx::IntSize &aSize,
|
|
gfx::SurfaceFormat aFormat)
|
|
{
|
|
RefPtr<gfxContext> context = mDeviceContext->CreateRenderingContext();
|
|
if (!context) {
|
|
NS_WARNING("Failed to create rendering context for print.");
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<DrawTarget> drawTarget = context->GetDrawTarget();
|
|
AddDrawTarget(aRefPtr, drawTarget);
|
|
return drawTarget.forget();
|
|
}
|
|
|
|
} // namespace layout
|
|
} // namespace mozilla
|