зеркало из https://github.com/mozilla/gecko-dev.git
112 строки
3.6 KiB
C++
112 строки
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsIDeviceContextSpec_h___
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#define nsIDeviceContextSpec_h___
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#include "gfxPoint.h"
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#include "nsISupports.h"
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#include "mozilla/StaticPrefs_print.h"
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#include "mozilla/gfx/Point.h"
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#include "mozilla/gfx/PrintPromise.h"
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#include "mozilla/MoveOnlyFunction.h"
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class nsIWidget;
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class nsIPrintSettings;
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namespace mozilla {
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namespace gfx {
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class DrawEventRecorder;
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class PrintTarget;
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} // namespace gfx
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} // namespace mozilla
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#define NS_IDEVICE_CONTEXT_SPEC_IID \
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{ \
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0xf407cfba, 0xbe28, 0x46c9, { \
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0x8a, 0xba, 0x04, 0x2d, 0xae, 0xbb, 0x4f, 0x23 \
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} \
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}
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class nsIDeviceContextSpec : public nsISupports {
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public:
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typedef mozilla::gfx::PrintTarget PrintTarget;
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using IntSize = mozilla::gfx::IntSize;
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_IDEVICE_CONTEXT_SPEC_IID)
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/**
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* Initialize the device context spec.
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* @param aWidget A widget a dialog can be hosted in
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* @param aPrintSettings Print settings for the print operation
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* @param aIsPrintPreview True if creating Spec for PrintPreview
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* @return NS_OK or a suitable error code.
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*/
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NS_IMETHOD Init(nsIPrintSettings* aPrintSettings, bool aIsPrintPreview) = 0;
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virtual already_AddRefed<PrintTarget> MakePrintTarget() = 0;
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/**
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* If required override to return a recorder to record the print.
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*
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* @param aDrawEventRecorder out param for the recorder to use
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* @return NS_OK or a suitable error code
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*/
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NS_IMETHOD GetDrawEventRecorder(
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mozilla::gfx::DrawEventRecorder** aDrawEventRecorder) {
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MOZ_ASSERT(aDrawEventRecorder);
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*aDrawEventRecorder = nullptr;
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return NS_OK;
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}
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/**
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* @return DPI for printing.
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*/
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float GetDPI() { return mozilla::StaticPrefs::print_default_dpi(); }
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/**
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* @return the printing scale to be applied to the context for printing.
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*/
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float GetPrintingScale();
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/**
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* @return the point to translate the context to for printing.
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*/
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gfxPoint GetPrintingTranslate();
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NS_IMETHOD BeginDocument(const nsAString& aTitle,
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const nsAString& aPrintToFileName,
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int32_t aStartPage, int32_t aEndPage) = 0;
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virtual RefPtr<mozilla::gfx::PrintEndDocumentPromise> EndDocument() = 0;
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/**
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* Note: not all print devices implement mixed page sizing. Internally,
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* aSizeInPoints gets handed off to a PrintTarget, and most PrintTarget
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* subclasses will ignore `aSizeInPoints`.
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*/
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NS_IMETHOD BeginPage(const IntSize& aSizeInPoints) = 0;
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NS_IMETHOD EndPage() = 0;
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protected:
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using AsyncEndDocumentFunction = mozilla::MoveOnlyFunction<nsresult()>;
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static RefPtr<mozilla::gfx::PrintEndDocumentPromise> EndDocumentAsync(
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const char* aCallSite, AsyncEndDocumentFunction aFunction);
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static RefPtr<mozilla::gfx::PrintEndDocumentPromise>
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EndDocumentPromiseFromResult(nsresult aResult, mozilla::StaticString aSite);
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nsCOMPtr<nsIPrintSettings> mPrintSettings;
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#ifdef MOZ_ENABLE_SKIA_PDF
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// This variable is independant of nsIPrintSettings::kOutputFormatPDF (i.e.
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// save-to-PDF). If set to true, then even when we print to a printer we
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// output and send it PDF.
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bool mPrintViaSkPDF = false;
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#endif
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsIDeviceContextSpec, NS_IDEVICE_CONTEXT_SPEC_IID)
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#endif
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