/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Roland Mainz * * Alternatively, the contents of this file may be used under the terms of * either of the GNU General Public License Version 2 or later (the "GPL"), * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #ifndef nsRenderingContextPS_h___ #define nsRenderingContextPS_h___ #include "nsIRenderingContext.h" #include "nsRenderingContextImpl.h" #include "nsUnitConversion.h" #include "nsFont.h" #include "nsFontMetricsPS.h" #include "nsPoint.h" #include "nsString.h" #include "nsCRT.h" #include "nsTransform2D.h" #include "nsIViewManager.h" #include "nsIWidget.h" #include "nsRect.h" #include "nsDeviceContextPS.h" #include "nsVoidArray.h" class nsPostScriptObj; class PS_State; class nsRenderingContextPS : public nsRenderingContextImpl { public: nsRenderingContextPS(); virtual ~nsRenderingContextPS(); NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW NS_DECL_ISUPPORTS public: // nsIRenderingContext NS_IMETHOD Init(nsIDeviceContext* aContext); NS_IMETHOD Init(nsIDeviceContext* aContext, nsIWidget *aWidget) {return NS_ERROR_NOT_IMPLEMENTED;} NS_IMETHOD Init(nsIDeviceContext* aContext, nsIDrawingSurface* aSurface) {return NS_ERROR_NOT_IMPLEMENTED;} NS_IMETHOD Reset(void); NS_IMETHOD GetDeviceContext(nsIDeviceContext *&aContext); NS_IMETHOD LockDrawingSurface(PRInt32 aX, PRInt32 aY, PRUint32 aWidth, PRUint32 aHeight, void **aBits, PRInt32 *aStride, PRInt32 *aWidthBytes, PRUint32 aFlags); NS_IMETHOD UnlockDrawingSurface(void); NS_IMETHOD SelectOffScreenDrawingSurface(nsIDrawingSurface* aSurface); NS_IMETHOD GetDrawingSurface(nsIDrawingSurface* *aSurface); NS_IMETHOD GetHints(PRUint32& aResult); NS_IMETHOD PushState(void); NS_IMETHOD PopState(void); NS_IMETHOD IsVisibleRect(const nsRect& aRect, PRBool &aClipState); NS_IMETHOD SetClipRect(const nsRect& aRect, nsClipCombine aCombine); NS_IMETHOD GetClipRect(nsRect &aRect, PRBool &aClipState); NS_IMETHOD SetClipRegion(const nsIRegion& aRegion, nsClipCombine aCombine); NS_IMETHOD CopyClipRegion(nsIRegion &aRegion); NS_IMETHOD GetClipRegion(nsIRegion **aRegion); NS_IMETHOD SetLineStyle(nsLineStyle aLineStyle); NS_IMETHOD GetLineStyle(nsLineStyle &aLineStyle); NS_IMETHOD SetColor(nscolor aColor); NS_IMETHOD GetColor(nscolor &aColor) const; NS_IMETHOD SetFont(const nsFont& aFont, nsIAtom* aLangGroup); NS_IMETHOD SetFont(nsIFontMetrics *aFontMetrics); NS_IMETHOD GetFontMetrics(nsIFontMetrics *&aFontMetrics); NS_IMETHOD Translate(nscoord aX, nscoord aY); NS_IMETHOD Scale(float aSx, float aSy); NS_IMETHOD GetCurrentTransform(nsTransform2D *&aTransform); NS_IMETHOD CreateDrawingSurface(const nsRect& aBounds, PRUint32 aSurfFlags, nsIDrawingSurface* &aSurface); NS_IMETHOD DestroyDrawingSurface(nsIDrawingSurface* aDS); NS_IMETHOD DrawLine(nscoord aX0, nscoord aY0, nscoord aX1, nscoord aY1); NS_IMETHOD DrawPolyline(const nsPoint aPoints[], PRInt32 aNumPoints); NS_IMETHOD DrawRect(const nsRect& aRect); NS_IMETHOD DrawRect(nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight); NS_IMETHOD FillRect(const nsRect& aRect); NS_IMETHOD FillRect(nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight); NS_IMETHOD InvertRect(const nsRect& aRect); NS_IMETHOD InvertRect(nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight); NS_IMETHOD DrawPolygon(const nsPoint aPoints[], PRInt32 aNumPoints); NS_IMETHOD FillPolygon(const nsPoint aPoints[], PRInt32 aNumPoints); NS_IMETHOD DrawEllipse(const nsRect& aRect); NS_IMETHOD DrawEllipse(nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight); NS_IMETHOD FillEllipse(const nsRect& aRect); NS_IMETHOD FillEllipse(nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight); NS_IMETHOD DrawArc(const nsRect& aRect, float aStartAngle, float aEndAngle); NS_IMETHOD DrawArc(nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight, float aStartAngle, float aEndAngle); NS_IMETHOD FillArc(const nsRect& aRect, float aStartAngle, float aEndAngle); NS_IMETHOD FillArc(nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight, float aStartAngle, float aEndAngle); NS_IMETHOD GetWidth(char aC, nscoord& aWidth); NS_IMETHOD GetWidth(PRUnichar aC, nscoord& aWidth, PRInt32 *aFontID); NS_IMETHOD GetWidth(const nsString& aString, nscoord& aWidth, PRInt32 *aFontID); NS_IMETHOD GetWidth(const char* aString, nscoord& aWidth); NS_IMETHOD GetWidth(const char* aString, PRUint32 aLength, nscoord& aWidth); NS_IMETHOD GetWidth(const PRUnichar* aString, PRUint32 aLength, nscoord& aWidth, PRInt32 *aFontID); NS_IMETHOD DrawString(const char *aString, PRUint32 aLength, nscoord aX, nscoord aY, const nscoord* aSpacing); NS_IMETHOD DrawString(const PRUnichar *aString, PRUint32 aLength, nscoord aX, nscoord aY, PRInt32 aFontID, const nscoord* aSpacing); NS_IMETHOD DrawString(const nsString& aString, nscoord aX, nscoord aY, PRInt32 aFontID, const nscoord* aSpacing); protected: PRInt32 DrawString(const PRUnichar *aString, PRUint32 aLength, nscoord aX, nscoord aY, nsFontPS* aFontPS, const nscoord* aSpacing); PRInt32 DrawString(const char *aString, PRUint32 aLength, nscoord &aX, nscoord &aY, nsFontPS* aFontPS, const nscoord* aSpacing); public: NS_IMETHOD GetTextDimensions(const char* aString, PRUint32 aLength, nsTextDimensions& aDimensions); NS_IMETHOD GetTextDimensions(const PRUnichar *aString, PRUint32 aLength, nsTextDimensions& aDimensions, PRInt32 *aFontID); NS_IMETHOD GetTextDimensions(const char* aString, PRInt32 aLength, PRInt32 aAvailWidth, PRInt32* aBreaks, PRInt32 aNumBreaks, nsTextDimensions& aDimensions, PRInt32& aNumCharsFit, nsTextDimensions& aLastWordDimensions, PRInt32* aFontID = nsnull); NS_IMETHOD GetTextDimensions(const PRUnichar* aString, PRInt32 aLength, PRInt32 aAvailWidth, PRInt32* aBreaks, PRInt32 aNumBreaks, nsTextDimensions& aDimensions, PRInt32& aNumCharsFit, nsTextDimensions& aLastWordDimensions, PRInt32* aFontID = nsnull); /** * Draw a portion of an image, scaling it to fit a specified rect. * @param aImage The image to draw * @param aSrcRect The rect (in twips) of the image to draw. * [x,y] denotes the top left corner of the region. * @param aDestRect The device context rect (in twips) that the image * portion should occupy. [x,y] denotes the top left corner. * [height,width] denotes the desired image size. */ NS_IMETHOD DrawImage(imgIContainer *aImage, const nsRect & aSrcRect, const nsRect & aDestRect); /* * Tiles an image over an area * @param aImage Image to tile * @param aXImageStart x location where the origin (0,0) of the image starts * @param aYImageStart y location where the origin (0,0) of the image starts * @param aTargetRect area to draw to * */ NS_IMETHOD DrawTile(imgIContainer *aImage, nscoord aXImageStart, nscoord aYImageStart, const nsRect *aTargetRect); NS_IMETHOD CopyOffScreenBits(nsIDrawingSurface* aSrcSurf, PRInt32 aSrcX, PRInt32 aSrcY, const nsRect &aDestBounds, PRUint32 aCopyFlags); NS_IMETHOD RetrieveCurrentNativeGraphicData(void** ngd); // Postscript utilities /** --------------------------------------------------- * Set the current postscript font * @update 12/21/98 dwc */ void PostscriptFont(nscoord aHeight, PRUint8 aStyle, PRUint8 aVariant, PRUint16 aWeight, PRUint8 decorations); inline nsPostScriptObj* GetPostScriptObj() { return mPSObj; }; #ifdef XP_WIN // this define is here only so the postscript can be compiled // and tested on the windows platform. NS_IMETHOD GetWidth(const char *aString, PRInt32 aLength, PRInt32 aAvailWidth, PRInt32* aBreaks, PRInt32 aNumBreaks, nscoord& aWidth, PRInt32& aNumCharsFit, PRInt32* aFontID = nsnull) {return NS_OK;} NS_IMETHOD GetWidth(const PRUnichar *aString, PRInt32 aLength, PRInt32 aAvailWidth, PRInt32* aBreaks, PRInt32 aNumBreaks, nscoord& aWidth, PRInt32& aNumCharsFit, PRInt32* aFontID = nsnull) {return NS_OK;} #endif #ifdef MOZ_MATHML /** * Returns metrics (in app units) of an 8-bit character string */ NS_IMETHOD GetBoundingMetrics(const char* aString, PRUint32 aLength, nsBoundingMetrics& aBoundingMetrics); /** * Returns metrics (in app units) of a Unicode character string */ NS_IMETHOD GetBoundingMetrics(const PRUnichar* aString, PRUint32 aLength, nsBoundingMetrics& aBoundingMetrics, PRInt32* aFontID = nsnull); #endif /* MOZ_MATHML */ /** --------------------------------------------------- * Output an encapsulated postscript file to the print job. See * documentation in gfx/public/nsIRenderingContext.h. * @update 3/6/2004 kherron * @param aRect Rectangle in which to render the EPS * @param aDataFile - data stored in a file * @return NS_OK or a suitable error code. */ NS_IMETHOD RenderEPS(const nsRect& aRect, FILE *aDataFile); private: nsresult CommonInit(void); void PushClipState(void); protected: nsCOMPtr mContext; nsCOMPtr mFontMetrics; nsLineStyle mCurrLineStyle; PS_State *mStates; nsVoidArray *mStateCache; float mP2T; nscolor mCurrentColor; //state management PRUint8 *mGammaTable; nsPostScriptObj *mPSObj; }; #endif /* !nsRenderingContextPS_h___ */