/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: NPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Netscape 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/NPL/ * * 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): * Peter Hartshorn * Tim Copperfield * Roland Mainz * * * Alternatively, the contents of this file may be used under the terms of * either 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 NPL, 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 NPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #ifndef nsRenderingContextXlib_h___ #define nsRenderingContextXlib_h___ #include "nsRenderingContextImpl.h" #include "nsUnitConversion.h" #include "nsFont.h" #include "nsIFontMetrics.h" #include "nsPoint.h" #include "nsString.h" #include "nsCRT.h" #include "nsTransform2D.h" #include "nsIViewManager.h" #include "nsIWidget.h" #include "nsRect.h" #include "nsDeviceContextX.h" #include "nsImageXlib.h" #include "nsVoidArray.h" #include "nsDrawingSurfaceXlib.h" #include "nsRegionXlib.h" #include "nsCOMPtr.h" #include "nsGCCache.h" #include #include class GraphicsState; class nsFontXlib; /* Note |nsRenderingContextXp| may override some of these methods here */ class nsRenderingContextXlib : public nsRenderingContextImpl { public: nsRenderingContextXlib(); virtual ~nsRenderingContextXlib(); static nsresult Shutdown(); // release statics NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW NS_DECL_ISUPPORTS NS_IMETHOD Init(nsIDeviceContext* aContext, nsIWidget *aWindow); NS_IMETHOD Init(nsIDeviceContext* aContext, nsDrawingSurface aSurface); 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(nsDrawingSurface aSurface); NS_IMETHOD GetDrawingSurface(nsDrawingSurface *aSurface); NS_IMETHOD GetHints(PRUint32& aResult); NS_IMETHOD PushState(void); NS_IMETHOD PopState(PRBool &aClipState); NS_IMETHOD IsVisibleRect(const nsRect& aRect, PRBool &aVisible); NS_IMETHOD SetClipRect(const nsRect& aRect, nsClipCombine aCombine, PRBool &aCilpState); NS_IMETHOD GetClipRect(nsRect &aRect, PRBool &aClipState); NS_IMETHOD SetClipRegion(const nsIRegion& aRegion, nsClipCombine aCombine, PRBool &aClipState); 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); 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(nsRect *aBounds, PRUint32 aSurfFlags, nsDrawingSurface &aSurface); NS_IMETHOD DestroyDrawingSurface(nsDrawingSurface 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 DrawStdLine(nscoord aX0, nscoord aY0, nscoord aX1, nscoord aY1); #if 0 // in nsRenderingContextImpl NS_IMETHOD DrawPath(nsPathPoint aPointArray[], PRInt32 aNumPts); NS_IMETHOD FillPath(nsPathPoint aPointArray[], PRInt32 aNumPts); #endif 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); #if 0 // in nsRenderingContextImpl NS_IMETHOD FillStdPolygon(const nsPoint aPoints[], PRInt32 aNumPoints); NS_IMETHOD RasterPolygon(const nsPoint aPoints[], PRInt32 aNumPoints); #endif 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); NS_IMETHOD GetTextDimensions(const char* aString, PRUint32 aLength, nsTextDimensions& aDimensions); NS_IMETHOD GetTextDimensions(const PRUnichar *aString, PRUint32 aLength, nsTextDimensions& aDimensions, PRInt32 *aFontID); NS_IMETHOD DrawImage(nsIImage *aImage, nscoord aX, nscoord aY); NS_IMETHOD DrawImage(nsIImage *aImage, nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight); NS_IMETHOD DrawImage(nsIImage *aImage, const nsRect& aRect); NS_IMETHOD DrawImage(nsIImage *aImage, const nsRect& aSRect, const nsRect& aDRect); NS_IMETHOD GetBackbuffer(const nsRect &aRequestedSize, const nsRect &aMaxSize, nsDrawingSurface &aBackbuffer); NS_IMETHOD ReleaseBackbuffer(void); NS_IMETHOD CopyOffScreenBits(nsDrawingSurface aSrcSurf, PRInt32 aSrcX, PRInt32 aSrcY, const nsRect &aDestBounds, PRUint32 aCopyFlags); NS_IMETHOD RetrieveCurrentNativeGraphicData(PRUint32 * ngd); #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 */ // this is a common init function for both of the init functions. nsresult CommonInit(void); xGC *GetGC() { mGC->AddRef(); return mGC; } void UpdateGC(); void UpdateGC(Drawable drawable); /* use UpdateGC() to update GC-cache !! */ void SetCurrentFont(nsFontXlib *cf){ mCurrentFont = cf; }; nsFontXlib *GetCurrentFont() { return mCurrentFont; }; protected: nsCOMPtr mContext; nsCOMPtr mOffscreenSurface; /* not supported for printers */ nsCOMPtr mRenderingSurface; nsIFontMetrics *mFontMetrics; nsCOMPtr mClipRegion; float mP2T; nscolor mCurrentColor; XlibRgbHandle *mXlibRgbHandle; Display * mDisplay; Screen * mScreen; Visual * mVisual; int mDepth; // graphics state stuff nsVoidArray *mStateCache; nsFontXlib *mCurrentFont; nsLineStyle mCurrentLineStyle; xGC *mGC; int mFunction; int mLineStyle; char *mDashList; int mDashes; // ConditionRect is used to fix coordinate overflow problems for // rectangles after they are transformed to screen coordinates void ConditionRect(nscoord &x, nscoord &y, nscoord &w, nscoord &h) { if ( y < -32766 ) { y = -32766; } if ( y + h > 32766 ) { h = 32766 - y; } if ( x < -32766 ) { x = -32766; } if ( x + w > 32766 ) { w = 32766 - x; } } static nsGCCacheXlib *gcCache; }; #endif /* !nsRenderingContextXlib_h___ */