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/* -*- 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(std::istream& 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();
}
FontType
PrintTranslator::GetDesiredFontType()
{
switch (mBaseDT->GetBackendType()) {
case BackendType::DIRECT2D:
return FontType::DWRITE;
case BackendType::CAIRO:
return FontType::CAIRO;
case BackendType::SKIA:
return FontType::SKIA;
default:
return FontType::CAIRO;
}
}
} // namespace layout
} // namespace mozilla
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