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157 lines
5.3 KiB
C++
157 lines
5.3 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 nsSimplePageSequence_h___
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#define nsSimplePageSequence_h___
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#include "mozilla/Attributes.h"
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#include "nsIPageSequenceFrame.h"
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#include "nsContainerFrame.h"
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#include "nsIPrintSettings.h"
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#include "nsIPrintOptions.h"
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#include "nsIDateTimeFormat.h"
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#include "mozilla/dom/HTMLCanvasElement.h"
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//-----------------------------------------------
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// This class maintains all the data that
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// is used by all the page frame
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// It lives while the nsSimplePageSequenceFrame lives
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class nsSharedPageData {
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public:
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nsSharedPageData();
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~nsSharedPageData();
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PRUnichar * mDateTimeStr;
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nsFont * mHeadFootFont;
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PRUnichar * mPageNumFormat;
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PRUnichar * mPageNumAndTotalsFormat;
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PRUnichar * mDocTitle;
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PRUnichar * mDocURL;
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nsSize mReflowSize;
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nsMargin mReflowMargin;
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// Margin for headers and footers; it defaults to 4/100 of an inch on UNIX
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// and 0 elsewhere; I think it has to do with some inconsistency in page size
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// computations
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nsMargin mEdgePaperMargin;
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nsCOMPtr<nsIPrintSettings> mPrintSettings;
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nsCOMPtr<nsIPrintOptions> mPrintOptions;
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nscoord mPageContentXMost; // xmost size from Reflow(width)
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nscoord mPageContentSize; // constrained size (width)
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};
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// Simple page sequence frame class. Used when we're in paginated mode
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class nsSimplePageSequenceFrame : public nsContainerFrame,
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public nsIPageSequenceFrame {
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public:
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friend nsIFrame* NS_NewSimplePageSequenceFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS
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// nsIFrame
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NS_IMETHOD Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aMaxSize,
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nsReflowStatus& aStatus);
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists) MOZ_OVERRIDE;
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// nsIPageSequenceFrame
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NS_IMETHOD SetPageNo(int32_t aPageNo) { return NS_OK;}
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NS_IMETHOD SetSelectionHeight(nscoord aYOffset, nscoord aHeight) MOZ_OVERRIDE { mYSelOffset = aYOffset; mSelectionHeight = aHeight; return NS_OK; }
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NS_IMETHOD SetTotalNumPages(int32_t aTotal) MOZ_OVERRIDE { mTotalPages = aTotal; return NS_OK; }
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// For Shrink To Fit
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NS_IMETHOD GetSTFPercent(float& aSTFPercent) MOZ_OVERRIDE;
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// Async Printing
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NS_IMETHOD StartPrint(nsPresContext* aPresContext,
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nsIPrintSettings* aPrintSettings,
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PRUnichar* aDocTitle,
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PRUnichar* aDocURL);
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NS_IMETHOD PrePrintNextPage(nsITimerCallback* aCallback, bool* aDone) MOZ_OVERRIDE;
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NS_IMETHOD PrintNextPage() MOZ_OVERRIDE;
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NS_IMETHOD ResetPrintCanvasList() MOZ_OVERRIDE;
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NS_IMETHOD GetCurrentPageNum(int32_t* aPageNum) MOZ_OVERRIDE;
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NS_IMETHOD GetNumPages(int32_t* aNumPages) MOZ_OVERRIDE;
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NS_IMETHOD IsDoingPrintRange(bool* aDoing) MOZ_OVERRIDE;
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NS_IMETHOD GetPrintRange(int32_t* aFromPage, int32_t* aToPage) MOZ_OVERRIDE;
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NS_IMETHOD DoPageEnd() MOZ_OVERRIDE;
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// We must allow Print Preview UI to have a background, no matter what the
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// user's settings
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virtual bool HonorPrintBackgroundSettings() { return false; }
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virtual bool HasTransformGetter() const MOZ_OVERRIDE { return true; }
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/**
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* Get the "type" of the frame
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*
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* @see nsGkAtoms::sequenceFrame
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*/
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virtual nsIAtom* GetType() const;
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#ifdef DEBUG
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NS_IMETHOD GetFrameName(nsAString& aResult) const;
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#endif
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protected:
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nsSimplePageSequenceFrame(nsStyleContext* aContext);
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virtual ~nsSimplePageSequenceFrame();
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void SetPageNumberFormat(const char* aPropName, const char* aDefPropVal, bool aPageNumOnly);
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// SharedPageData Helper methods
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void SetDateTimeStr(PRUnichar * aDateTimeStr);
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void SetPageNumberFormat(PRUnichar * aFormatStr, bool aForPageNumOnly);
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// Sets the frame desired size to the size of the viewport, or the given
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// nscoords, whichever is larger. Print scaling is applied in this function.
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void SetDesiredSize(nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nscoord aWidth, nscoord aHeight);
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void DetermineWhetherToPrintPage();
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nsMargin mMargin;
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// I18N date formatter service which we'll want to cache locally.
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nsCOMPtr<nsIDateTimeFormat> mDateFormatter;
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nsSize mSize;
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nsSharedPageData* mPageData; // data shared by all the nsPageFrames
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// Asynch Printing
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nsIFrame * mCurrentPageFrame;
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int32_t mPageNum;
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int32_t mTotalPages;
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int32_t mPrintRangeType;
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int32_t mFromPageNum;
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int32_t mToPageNum;
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nsTArray<int32_t> mPageRanges;
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nsTArray<nsRefPtr<mozilla::dom::HTMLCanvasElement> > mCurrentCanvasList;
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// Selection Printing Info
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nscoord mSelectionHeight;
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nscoord mYSelOffset;
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// Asynch Printing
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bool mPrintThisPage;
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bool mDoingPageRange;
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bool mIsPrintingSelection;
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bool mCalledBeginPage;
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bool mCurrentCanvasListSetup;
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};
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#endif /* nsSimplePageSequence_h___ */
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