/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef nsIDeviceContextSpec_h___ #define nsIDeviceContextSpec_h___ #include "nsISupports.h" class nsIWidget; class nsIPrintSettings; namespace mozilla { namespace gfx{ class DrawEventRecorder; class PrintTarget; } } #define NS_IDEVICE_CONTEXT_SPEC_IID \ { 0xf407cfba, 0xbe28, 0x46c9, \ { 0x8a, 0xba, 0x04, 0x2d, 0xae, 0xbb, 0x4f, 0x23 } } class nsIDeviceContextSpec : public nsISupports { public: typedef mozilla::gfx::PrintTarget PrintTarget; NS_DECLARE_STATIC_IID_ACCESSOR(NS_IDEVICE_CONTEXT_SPEC_IID) /** * Initialize the device context spec. * @param aWidget A widget a dialog can be hosted in * @param aPrintSettings Print settings for the print operation * @param aIsPrintPreview True if creating Spec for PrintPreview * @return NS_OK or a suitable error code. */ NS_IMETHOD Init(nsIWidget *aWidget, nsIPrintSettings* aPrintSettings, bool aIsPrintPreview) = 0; virtual already_AddRefed<PrintTarget> MakePrintTarget() = 0; /** * If required override to return a recorder to record the print. * * @param aDrawEventRecorder out param for the recorder to use * @return NS_OK or a suitable error code */ NS_IMETHOD GetDrawEventRecorder(mozilla::gfx::DrawEventRecorder** aDrawEventRecorder) { MOZ_ASSERT(aDrawEventRecorder); *aDrawEventRecorder = nullptr; return NS_OK; } /** * Override to return something other than the default. * * @return DPI for printing. */ virtual float GetDPI() { return 72.0f; } /** * Override to return something other than the default. * * @return the printing scale to be applied to the context for printing. */ virtual float GetPrintingScale() { return 1.0f; } NS_IMETHOD BeginDocument(const nsAString& aTitle, const nsAString& aPrintToFileName, int32_t aStartPage, int32_t aEndPage) = 0; NS_IMETHOD EndDocument() = 0; NS_IMETHOD AbortDocument() { return EndDocument(); } NS_IMETHOD BeginPage() = 0; NS_IMETHOD EndPage() = 0; }; NS_DEFINE_STATIC_IID_ACCESSOR(nsIDeviceContextSpec, NS_IDEVICE_CONTEXT_SPEC_IID) #endif