1 /*
2 * Copyright 2015 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "include/core/SkTypes.h"
9 #if defined(SK_BUILD_FOR_WIN)
10
11 #include "include/docs/SkXPSDocument.h"
12
13 #include "include/core/SkStream.h"
14 #include "src/utils/win/SkHRESULT.h"
15 #include "src/utils/win/SkTScopedComPtr.h"
16 #include "src/xps/SkXPSDevice.h"
17
18 // #include <XpsObjectModel.h>
19 #include <xpsobjectmodel.h>
20
21 namespace {
22 struct SkXPSDocument final : public SkDocument {
23 SkTScopedComPtr<IXpsOMObjectFactory> fXpsFactory;
24 SkXPSDevice fDevice;
25 std::unique_ptr<SkCanvas> fCanvas;
26 SkVector fUnitsPerMeter;
27 SkVector fPixelsPerMeter;
28
29 SkXPSDocument(SkWStream*, SkScalar dpi, SkTScopedComPtr<IXpsOMObjectFactory>);
30 ~SkXPSDocument() override;
31 SkCanvas* onBeginPage(SkScalar w, SkScalar h) override;
32 void onEndPage() override;
33 void onClose(SkWStream*) override;
34 void onAbort() override;
35 };
36 }
37
SkXPSDocument(SkWStream * stream,SkScalar dpi,SkTScopedComPtr<IXpsOMObjectFactory> xpsFactory)38 SkXPSDocument::SkXPSDocument(SkWStream* stream,
39 SkScalar dpi,
40 SkTScopedComPtr<IXpsOMObjectFactory> xpsFactory)
41 : SkDocument(stream)
42 , fXpsFactory(std::move(xpsFactory))
43 , fDevice(SkISize{10000, 10000})
44 {
45 const SkScalar kPointsPerMeter = SkDoubleToScalar(360000.0 / 127.0);
46 fUnitsPerMeter.set(kPointsPerMeter, kPointsPerMeter);
47 SkScalar pixelsPerMeterScale = SkDoubleToScalar(dpi * 5000.0 / 127.0);
48 fPixelsPerMeter.set(pixelsPerMeterScale, pixelsPerMeterScale);
49 SkASSERT(fXpsFactory);
50 fDevice.beginPortfolio(stream, fXpsFactory.get());
51 }
52
~SkXPSDocument()53 SkXPSDocument::~SkXPSDocument() {
54 // subclasses must call close() in their destructors
55 this->close();
56 }
57
onBeginPage(SkScalar width,SkScalar height)58 SkCanvas* SkXPSDocument::onBeginPage(SkScalar width, SkScalar height) {
59 fDevice.beginSheet(fUnitsPerMeter, fPixelsPerMeter, {width, height});
60 fCanvas.reset(new SkCanvas(sk_ref_sp(&fDevice)));
61 return fCanvas.get();
62 }
63
onEndPage()64 void SkXPSDocument::onEndPage() {
65 SkASSERT(fCanvas.get());
66 fCanvas.reset(nullptr);
67 fDevice.endSheet();
68 }
69
onClose(SkWStream *)70 void SkXPSDocument::onClose(SkWStream*) {
71 SkASSERT(!fCanvas.get());
72 (void)fDevice.endPortfolio();
73 }
74
onAbort()75 void SkXPSDocument::onAbort() {}
76
77 ///////////////////////////////////////////////////////////////////////////////
78
MakeDocument(SkWStream * stream,IXpsOMObjectFactory * factoryPtr,SkScalar dpi)79 sk_sp<SkDocument> SkXPS::MakeDocument(SkWStream* stream,
80 IXpsOMObjectFactory* factoryPtr,
81 SkScalar dpi) {
82 SkTScopedComPtr<IXpsOMObjectFactory> factory(SkSafeRefComPtr(factoryPtr));
83 return stream && factory
84 ? sk_make_sp<SkXPSDocument>(stream, dpi, std::move(factory))
85 : nullptr;
86 }
87 #endif // defined(SK_BUILD_FOR_WIN)
88