/* -*- 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): * * 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 nsRenderingContextWin_h___ #define nsRenderingContextWin_h___ #include "nsIRenderingContext.h" #include "nsUnitConversion.h" #include "nsFont.h" #include "nsFontMetricsWin.h" #include "nsPoint.h" #include "nsString.h" #include "nsCRT.h" #include "nsTransform2D.h" #include "nsIViewManager.h" #include "nsIWidget.h" #include "nsRect.h" #include "nsImageWin.h" #include "nsIDeviceContext.h" #include "nsVoidArray.h" #include "nsIRenderingContextWin.h" #include "nsDrawingSurfaceWin.h" #include "nsRenderingContextImpl.h" class GraphicsState; class nsDrawingSurfaceWin; class nsRenderingContextWin : public nsRenderingContextImpl, nsIRenderingContextWin { public: nsRenderingContextWin(); NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW NS_DECL_ISUPPORTS NS_IMETHOD Init(nsIDeviceContext* aContext, nsIWidget *aWindow); NS_IMETHOD Init(nsIDeviceContext* aContext, nsIDrawingSurface* 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(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 SetPenMode(nsPenMode aPenMode); NS_IMETHOD GetPenMode(nsPenMode &aPenMode); 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(const nsString& aString, nscoord &aWidth, PRInt32 *aFontID = nsnull) { return nsRenderingContextImpl::GetWidth(aString, aWidth, aFontID); } NS_IMETHOD GetWidth(const char* aString, nscoord& aWidth) { return nsRenderingContextImpl::GetWidth(aString, aWidth); } NS_IMETHOD GetWidth(const char* aString, PRUint32 aLength, nscoord& aWidth) { return nsRenderingContextImpl::GetWidth(aString, aLength, aWidth); } NS_IMETHOD GetWidth(const PRUnichar *aString, PRUint32 aLength, nscoord &aWidth, PRInt32 *aFontID = nsnull) { return nsRenderingContextImpl::GetWidth(aString, aLength, aWidth, aFontID); } NS_IMETHOD DrawString(const nsString& aString, nscoord aX, nscoord aY, PRInt32 aFontID = -1, const nscoord* aSpacing = nsnull) { return nsRenderingContextImpl::DrawString(aString, aX, aY, aFontID, aSpacing); } NS_IMETHOD GetWidth(char aC, nscoord &aWidth); NS_IMETHOD GetWidth(PRUnichar aC, nscoord &aWidth, PRInt32 *aFontID); NS_IMETHOD GetWidthInternal(const char *aString, PRUint32 aLength, nscoord &aWidth); NS_IMETHOD GetWidthInternal(const PRUnichar *aString, PRUint32 aLength, nscoord &aWidth, PRInt32 *aFontID); NS_IMETHOD DrawStringInternal(const char *aString, PRUint32 aLength, nscoord aX, nscoord aY, const nscoord* aSpacing); NS_IMETHOD DrawStringInternal(const PRUnichar *aString, PRUint32 aLength, nscoord aX, nscoord aY, PRInt32 aFontID, const nscoord* aSpacing); NS_IMETHOD GetTextDimensionsInternal(const char* aString, PRUint32 aLength, nsTextDimensions& aDimensions); NS_IMETHOD GetTextDimensionsInternal(const PRUnichar *aString, PRUint32 aLength, nsTextDimensions& aDimensions,PRInt32 *aFontID); NS_IMETHOD GetTextDimensionsInternal(const char* aString, PRInt32 aLength, PRInt32 aAvailWidth, PRInt32* aBreaks, PRInt32 aNumBreaks, nsTextDimensions& aDimensions, PRInt32& aNumCharsFit, nsTextDimensions& aLastWordDimensions, PRInt32* aFontID); NS_IMETHOD GetTextDimensionsInternal(const PRUnichar* aString, PRInt32 aLength, PRInt32 aAvailWidth, PRInt32* aBreaks, PRInt32 aNumBreaks, nsTextDimensions& aDimensions, PRInt32& aNumCharsFit, nsTextDimensions& aLastWordDimensions, PRInt32* aFontID); #ifdef MOZ_MATHML /** * Returns metrics (in app units) of an 8-bit character string */ NS_IMETHOD GetBoundingMetricsInternal(const char* aString, PRUint32 aLength, nsBoundingMetrics& aBoundingMetrics); /** * Returns metrics (in app units) of a Unicode character string */ NS_IMETHOD GetBoundingMetricsInternal(const PRUnichar* aString, PRUint32 aLength, nsBoundingMetrics& aBoundingMetrics, PRInt32* aFontID = nsnull); #endif /* MOZ_MATHML */ virtual PRInt32 GetMaxStringLength(); NS_IMETHOD CopyOffScreenBits(nsIDrawingSurface* aSrcSurf, PRInt32 aSrcX, PRInt32 aSrcY, const nsRect &aDestBounds, PRUint32 aCopyFlags); //~~~ NS_IMETHOD RetrieveCurrentNativeGraphicData(void** ngd); // nsIRenderingContextWin NS_IMETHOD CreateDrawingSurface(HDC aDC, nsIDrawingSurface* &aSurface); NS_IMETHOD GetBackbuffer(const nsRect &aRequestedSize, const nsRect &aMaxSize, PRBool aForBlending, nsIDrawingSurface* &aBackbuffer); NS_IMETHOD ReleaseBackbuffer(void); NS_IMETHOD SetRightToLeftText(PRBool aIsRTL); NS_IMETHOD GetRightToLeftText(PRBool* aIsRTL); protected: void SetupFontAndColor(void); ~nsRenderingContextWin(); private: // ConditionRect is used to fix a coordinate overflow problem under WIN95. void ConditionRect(nsRect& aSrcRect, RECT& aDestRect); nsresult CommonInit(void); nsresult SetupDC(HDC aOldDC, HDC aNewDC); HBRUSH SetupSolidBrush(void); HPEN SetupPen(void); HPEN SetupSolidPen(void); HPEN SetupDashedPen(void); HPEN SetupDottedPen(void); void PushClipState(void); void InitBidiInfo(void); friend class nsNativeThemeWin; protected: nscolor mCurrentColor; // current font-metrics set in this RC nsIFontMetrics *mFontMetrics; HDC mDC; HDC mMainDC; nsDrawingSurfaceWin *mSurface; nsDrawingSurfaceWin *mMainSurface; COLORREF mColor; nsIWidget *mDCOwner; // int mOldMapMode; nsIDeviceContext *mContext; float mP2T; HRGN mClipRegion; //default objects HBRUSH mOrigSolidBrush; HFONT mOrigFont; HPEN mOrigSolidPen; HPALETTE mOrigPalette; //state management GraphicsState *mStates; nsVoidArray *mStateCache; nscolor mCurrBrushColor; HBRUSH mCurrBrush; // mFontMetrics owns mCurrFontWin which is a thin wrapper // around mCurrFont (the actual GDI font handle). These variables // allow us to quickly tell the current selected font and to // avoid the extra cost of a redundant setup of the same font. nsFontWin *mCurrFontWin; HFONT mCurrFont; nscolor mCurrPenColor; HPEN mCurrPen; HPEN mNullPen; PRUint8 *mGammaTable; nscolor mCurrTextColor; nsLineStyle mCurrLineStyle; #ifdef NS_DEBUG PRPackedBool mInitialized; #endif PRPackedBool mRightToLeftText; }; #endif /* nsRenderingContextWin_h___ */