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/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkDocument.h"
#include "SkPDFDocument.h"
#include "SkPDFDeviceFlattener.h"
class SkDocument_PDF : public SkDocument {
public:
SkDocument_PDF(SkWStream* stream, void (*doneProc)(SkWStream*,bool),
SkPicture::EncodeBitmap encoder,
SkScalar rasterDpi)
: SkDocument(stream, doneProc)
, fEncoder(encoder)
, fRasterDpi(rasterDpi) {
fDoc = SkNEW(SkPDFDocument);
fCanvas = NULL;
fDevice = NULL;
}
virtual ~SkDocument_PDF() {
// subclasses must call close() in their destructors
this->close();
}
protected:
virtual SkCanvas* onBeginPage(SkScalar width, SkScalar height,
const SkRect& trimBox) SK_OVERRIDE {
SkASSERT(NULL == fCanvas);
SkASSERT(NULL == fDevice);
SkSize mediaBoxSize;
mediaBoxSize.set(width, height);
fDevice = SkNEW_ARGS(SkPDFDeviceFlattener, (mediaBoxSize, &trimBox));
if (fEncoder) {
fDevice->setDCTEncoder(fEncoder);
}
if (fRasterDpi != 0) {
fDevice->setRasterDpi(fRasterDpi);
}
fCanvas = SkNEW_ARGS(SkCanvas, (fDevice));
return fCanvas;
}
virtual void onEndPage() SK_OVERRIDE {
SkASSERT(fCanvas);
SkASSERT(fDevice);
fCanvas->flush();
fDoc->appendPage(fDevice);
fCanvas->unref();
fDevice->unref();
fCanvas = NULL;
fDevice = NULL;
}
virtual bool onClose(SkWStream* stream) SK_OVERRIDE {
SkASSERT(NULL == fCanvas);
SkASSERT(NULL == fDevice);
bool success = fDoc->emitPDF(stream);
SkDELETE(fDoc);
fDoc = NULL;
return success;
}
virtual void onAbort() SK_OVERRIDE {
SkDELETE(fDoc);
fDoc = NULL;
}
private:
SkPDFDocument* fDoc;
SkPDFDeviceFlattener* fDevice;
SkCanvas* fCanvas;
SkPicture::EncodeBitmap fEncoder;
SkScalar fRasterDpi;
};
///////////////////////////////////////////////////////////////////////////////
SkDocument* SkDocument::CreatePDF(SkWStream* stream, void (*done)(SkWStream*,bool),
SkPicture::EncodeBitmap enc,
SkScalar dpi) {
return stream ? SkNEW_ARGS(SkDocument_PDF, (stream, done, enc, dpi)) : NULL;
}
static void delete_wstream(SkWStream* stream, bool aborted) {
SkDELETE(stream);
}
SkDocument* SkDocument::CreatePDF(const char path[],
SkPicture::EncodeBitmap enc,
SkScalar dpi) {
SkFILEWStream* stream = SkNEW_ARGS(SkFILEWStream, (path));
if (!stream->isValid()) {
SkDELETE(stream);
return NULL;
}
return SkNEW_ARGS(SkDocument_PDF, (stream, delete_wstream, enc, dpi));
}
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