1 files changed, 57 insertions, 0 deletions
diff --git a/platform/windows/mupdf_cpp/PrintPage.h b/platform/windows/mupdf_cpp/PrintPage.h
new file mode 100644
index 00000000..725a5a43
--- /dev/null
+++ b/platform/windows/mupdf_cpp/PrintPage.h
@@ -0,0 +1,57 @@
+#pragma once
+#include <windows.graphics.printing.h>
+#include <printpreview.h>
+#include <documentsource.h>
+#include "MainPage.xaml.h"
+
+using namespace Microsoft::WRL;
+using namespace mupdf_cpp;
+
+/* This is the interface to the print thread calls */
+class PrintPages : public Microsoft::WRL::RuntimeClass<Microsoft::WRL::RuntimeClassFlags<Microsoft::WRL::WinRtClassicComMix>,
+															ABI::Windows::Graphics::Printing::IPrintDocumentSource,
+															IPrintDocumentPageSource,
+															IPrintPreviewPageCollection>
+{
+private:
+	InspectableClass(L"Windows.Graphics.Printing.IPrintDocumentSource", BaseTrust);
+
+public:
+	HRESULT RuntimeClassInitialize(IUnknown* pageRenderer)
+	{
+		HRESULT hr = (pageRenderer != nullptr) ? S_OK : E_INVALIDARG;
+
+		if (SUCCEEDED(hr))
+		{
+			m_paginate_called = false;
+			m_totalpages = 1;
+			m_height = 0.f;
+			m_width = 0.f;
+			m_renderer = reinterpret_cast<MainPage^>(pageRenderer);
+		}
+		return hr;
+	}
+	IFACEMETHODIMP GetPreviewPageCollection(IPrintDocumentPackageTarget*  doc_target,
+											IPrintPreviewPageCollection** doc_collection);
+	IFACEMETHODIMP MakeDocument(IInspectable* doc_options, 
+								IPrintDocumentPackageTarget* doc_target);
+	IFACEMETHODIMP Paginate(uint32 current_jobpage, IInspectable* doc_options);
+	IFACEMETHODIMP MakePage(uint32 desired_jobpage, float  width, float  height);
+	void ResetPreview();
+
+private:
+	float TransformedPageSize(float desired_width, float desired_height, 
+								Windows::Foundation::Size* preview_size);
+	uint32 m_totalpages;
+	bool m_paginate_called;
+	float m_height;
+	float m_width;
+	D2D1_RECT_F m_imageable_rect;
+	MainPage^ m_renderer;
+
+	Microsoft::WRL::ComPtr<IPrintPreviewDxgiPackageTarget> m_dxgi_previewtarget;
+
+	void DrawPreviewSurface(float width, float height, float scale_in, 
+								  D2D1_RECT_F contentBox, uint32 page_num, 
+								  IPrintPreviewDxgiPackageTarget* previewTarget);
+};