1 files changed, 104 insertions, 0 deletions
diff --git a/src/xps/SkXPSDocument.cpp b/src/xps/SkXPSDocument.cpp
new file mode 100644
index 0000000000..68672271e8
--- /dev/null
+++ b/src/xps/SkXPSDocument.cpp
@@ -0,0 +1,104 @@
+/*
+ * 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 "SkTypes.h"
+#if defined(SK_BUILD_FOR_WIN32)
+
+#include "SkXPSDocument.h"
+#include "SkStream.h"
+#include "SkHRESULT.h"
+
+SkXPSDocument::SkXPSDocument(SkWStream* stream,
+                   void (*doneProc)(SkWStream*, bool),
+                   SkScalar dpi,
+                   SkTScopedComPtr<IXpsOMObjectFactory> xpsFactory)
+        : SkDocument(stream, doneProc)
+        , fXpsFactory(std::move(xpsFactory))
+        , fDevice(SkISize{10000, 10000})
+{
+    const SkScalar kPointsPerMeter = SkDoubleToScalar(360000.0 / 127.0);
+    fUnitsPerMeter.set(kPointsPerMeter, kPointsPerMeter);
+    SkScalar pixelsPerMeterScale = SkDoubleToScalar(dpi * 5000.0 / 127.0);
+    fPixelsPerMeter.set(pixelsPerMeterScale, pixelsPerMeterScale);
+    SkASSERT(fXpsFactory);
+    fDevice.beginPortfolio(stream, fXpsFactory.get());
+}
+
+SkXPSDocument::~SkXPSDocument() {
+    // subclasses must call close() in their destructors
+    this->close();
+}
+
+SkCanvas* SkXPSDocument::onBeginPage(SkScalar width,
+                                     SkScalar height,
+                                     const SkRect& trimBox) {
+    fDevice.beginSheet(fUnitsPerMeter, fPixelsPerMeter,
+                       SkSize::Make(width, height));
+    fCanvas.reset(new SkCanvas(&fDevice));
+    fCanvas->clipRect(trimBox);
+    fCanvas->translate(trimBox.x(), trimBox.y());
+    return fCanvas.get();
+}
+
+void SkXPSDocument::onEndPage() {
+    SkASSERT(fCanvas.get());
+    fCanvas->flush();
+    fCanvas.reset(nullptr);
+    fDevice.endSheet();
+}
+
+void SkXPSDocument::onClose(SkWStream*) {
+    SkASSERT(!fCanvas.get());
+    (void)fDevice.endPortfolio();
+}
+
+void SkXPSDocument::onAbort() {}
+
+
+static SkTScopedComPtr<IXpsOMObjectFactory> make_xps_factory() {
+    IXpsOMObjectFactory* factory;
+    HRN(CoCreateInstance(CLSID_XpsOMObjectFactory,
+                         nullptr,
+                         CLSCTX_INPROC_SERVER,
+                         IID_PPV_ARGS(&factory)));
+    return SkTScopedComPtr<IXpsOMObjectFactory>(factory);
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+
+// TODO(halcanary, reed): modify the SkDocument API to take a IXpsOMObjectFactory* pointer.
+/*
+sk_sp<SkDocument> SkDocument::MakeXPS(SkWStream* stream,
+                                      IXpsOMObjectFactory* factoryPtr,
+                                      SkScalar dpi) {
+    SkTScopedComPtr<IXpsOMObjectFactory> factory(SkSafeRefComPtr(factoryPtr));
+    return stream && factory
+           ? sk_make_sp<SkXPSDocument>(stream, nullptr, dpi, std::move(factory))
+           : nullptr;
+}
+*/
+
+sk_sp<SkDocument> SkDocument::MakeXPS(SkWStream* stream, SkScalar dpi) {
+    auto factory = make_xps_factory();
+    return stream && factory
+           ? sk_make_sp<SkXPSDocument>(stream, nullptr, dpi, std::move(factory))
+           : nullptr;
+}
+
+sk_sp<SkDocument> SkDocument::MakeXPS(const char path[], SkScalar dpi) {
+    std::unique_ptr<SkFILEWStream> stream(new SkFILEWStream(path));
+    auto factory = make_xps_factory();
+    return stream->isValid() && factory
+           ? sk_make_sp<SkXPSDocument>(stream.release(),
+                                       [](SkWStream* s, bool) { delete s; },
+                                       dpi, std::move(factory))
+           : nullptr;
+}
+
+#endif//defined(SK_BUILD_FOR_WIN32)