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/*
* Copyright 2015 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 "SkXPSDevice.h"
#include "SkStream.h"
class SkDocument_XPS : public SkDocument {
public:
SkDocument_XPS(SkWStream* stream,
void (*doneProc)(SkWStream*, bool),
SkScalar dpi)
: SkDocument(stream, doneProc) {
const SkScalar kPointsPerMeter = SkDoubleToScalar(360000.0 / 127.0);
fUnitsPerMeter.set(kPointsPerMeter, kPointsPerMeter);
SkScalar pixelsPerMeterScale = SkDoubleToScalar(dpi * 5000.0 / 127.0);
fPixelsPerMeter.set(pixelsPerMeterScale, pixelsPerMeterScale);
fDevice.beginPortfolio(stream);
}
virtual ~SkDocument_XPS() {
// subclasses must call close() in their destructors
this->close();
}
protected:
virtual SkCanvas* onBeginPage(SkScalar width,
SkScalar height,
const SkRect& trimBox) SK_OVERRIDE {
fDevice.beginSheet(fUnitsPerMeter, fPixelsPerMeter,
SkSize::Make(width, height));
fCanvas.reset(SkNEW_ARGS(SkCanvas, (&fDevice)));
fCanvas->clipRect(trimBox);
fCanvas->translate(trimBox.x(), trimBox.y());
return fCanvas.get();
}
void onEndPage() SK_OVERRIDE {
SkASSERT(fCanvas.get());
fCanvas->flush();
fCanvas.reset(NULL);
fDevice.endSheet();
}
bool onClose(SkWStream*) SK_OVERRIDE {
SkASSERT(!fCanvas.get());
return fDevice.endPortfolio();
}
void onAbort() SK_OVERRIDE {}
private:
SkXPSDevice fDevice;
SkAutoTUnref<SkCanvas> fCanvas;
SkVector fUnitsPerMeter;
SkVector fPixelsPerMeter;
};
///////////////////////////////////////////////////////////////////////////////
SkDocument* SkDocument::CreateXPS(SkWStream* stream, SkScalar dpi) {
return stream ? SkNEW_ARGS(SkDocument_XPS, (stream, NULL, dpi)) : NULL;
}
static void delete_wstream(SkWStream* stream, bool aborted) {
SkDELETE(stream);
}
SkDocument* SkDocument::CreateXPS(const char path[], SkScalar dpi) {
SkAutoTDelete<SkFILEWStream> stream(SkNEW_ARGS(SkFILEWStream, (path)));
if (!stream->isValid()) {
return NULL;
}
return SkNEW_ARGS(SkDocument_XPS, (stream.detach(), delete_wstream, dpi));
}
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