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nsDeviceContextXlib.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   David Smith <david@igelaus.com.au>
00024  *   Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>
00025  *
00026  * Alternatively, the contents of this file may be used under the terms of
00027  * either of the GNU General Public License Version 2 or later (the "GPL"),
00028  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00029  * in which case the provisions of the GPL or the LGPL are applicable instead
00030  * of those above. If you wish to allow use of your version of this file only
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00033  * decision by deleting the provisions above and replace them with the notice
00034  * and other provisions required by the GPL or the LGPL. If you do not delete
00035  * the provisions above, a recipient may use your version of this file under
00036  * the terms of any one of the MPL, the GPL or the LGPL.
00037  *
00038  * ***** END LICENSE BLOCK ***** */
00039 
00040 #ifndef nsDeviceContextXlib_h__
00041 #define nsDeviceContextXlib_h__
00042 
00043 #include "nsDeviceContextX.h"
00044 #include "nsRenderingContextXlib.h"
00045 
00046 class nsDeviceContextXlib : public nsDeviceContextX
00047 {
00048 public:
00049   nsDeviceContextXlib();
00050 
00051   NS_IMETHOD  Init(nsNativeWidget aNativeWidget);
00052 
00053   NS_IMETHOD  CreateRenderingContext(nsIRenderingContext *&aContext);
00054   NS_IMETHOD  CreateRenderingContext(nsIView *aView, nsIRenderingContext *&aContext)
00055     {return (DeviceContextImpl::CreateRenderingContext(aView, aContext)); }
00056   NS_IMETHOD  CreateRenderingContext(nsIWidget *aWidget, nsIRenderingContext *&aContext)
00057     {return (DeviceContextImpl::CreateRenderingContext(aWidget, aContext)); }
00058   NS_IMETHOD  CreateRenderingContext(nsIDrawingSurface* aSurface, nsIRenderingContext *&aContext) 
00059     {return (DeviceContextImpl::CreateRenderingContext(aSurface, aContext));}
00060   NS_IMETHOD  CreateRenderingContextInstance(nsIRenderingContext *&aContext);
00061 
00062   NS_IMETHOD  SupportsNativeWidgets(PRBool &aSupportsWidgets);
00063 
00064   NS_IMETHOD  GetScrollBarDimensions(float &aWidth, float &aHeight) const;
00065   NS_IMETHOD  GetSystemFont(nsSystemFontID anID, nsFont *aFont) const;
00066 
00067   NS_IMETHOD CheckFontExistence(const nsString& aFontName);
00068 
00069   NS_IMETHOD GetDeviceSurfaceDimensions(PRInt32 &aWidth, PRInt32 &aHeight);
00070   NS_IMETHOD GetRect(nsRect &aRect);
00071   NS_IMETHOD GetClientRect(nsRect &aRect);
00072 
00073   NS_IMETHOD GetDeviceContextFor(nsIDeviceContextSpec *aDevice,
00074                                  nsIDeviceContext *&aContext);
00075 
00076   NS_IMETHOD BeginDocument(PRUnichar * aTitle, PRUnichar* aPrintToFileName, PRInt32 aStartPage, PRInt32 aEndPage);
00077   NS_IMETHOD EndDocument(void);
00078   NS_IMETHOD AbortDocument(void);
00079 
00080   NS_IMETHOD BeginPage(void);
00081   NS_IMETHOD EndPage(void);
00082 
00083   NS_IMETHOD CreateFontCache();
00084 
00085   NS_IMETHOD GetXlibRgbHandle(XlibRgbHandle *&aHandle) 
00086              { aHandle =  mXlibRgbHandle; return NS_OK; }
00087   XlibRgbHandle *GetXlibRgbHandle() { return mXlibRgbHandle; }
00088   NS_IMETHOD GetDepth( PRUint32 &depth ) { depth = (PRUint32)mDepth; return NS_OK; }
00089   virtual void GetFontMetricsContext(nsFontMetricsXlibContext *&aContext) { aContext = mFontMetricsContext; };
00090   virtual void GetRCContext(nsRenderingContextXlibContext *&aContext) { aContext = mRCContext; };
00091 
00092 protected:
00093   virtual ~nsDeviceContextXlib();
00094 
00095 private:
00096   nsresult             CommonInit(void);
00097   PRBool               mWriteable;
00098   PRUint32             mNumCells;
00099   nsIDrawingSurface*     mSurface;
00100   XlibRgbHandle       *mXlibRgbHandle;
00101   Display *            mDisplay;
00102   Screen *             mScreen;
00103   Visual *             mVisual;
00104   int                  mDepth;
00105   static nsFontMetricsXlibContext      *mFontMetricsContext;
00106   static nsRenderingContextXlibContext *mRCContext;
00107   static int                            mContextCounter;
00108 
00109   float                mWidthFloat;
00110   float                mHeightFloat;
00111   PRInt32              mWidth;
00112   PRInt32              mHeight;
00113 };
00114 
00115 #endif /* !nsDeviceContextXlib_h__ */
00116