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nsDeviceContextXP.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  *   Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either of the GNU General Public License Version 2 or later (the "GPL"),
00027  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
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00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #ifndef nsDeviceContextXp_h___
00040 #define nsDeviceContextXp_h___
00041 
00042 #include "nsDeviceContextX.h"
00043 #include "nsRenderingContextXp.h"
00044 #include "nsIDeviceContextXPrint.h"
00045 #include "nsXPrintContext.h"
00046 
00047 class nsDeviceContextXp : public nsDeviceContextX,
00048                           public nsIDeviceContextXp
00049 {
00050 public:
00051   nsDeviceContextXp();
00052 
00053   NS_DECL_ISUPPORTS_INHERITED
00054 
00060   NS_IMETHOD  InitDeviceContextXP(nsIDeviceContext *aCreatingDeviceContext,nsIDeviceContext *aPrinterContext); 
00061 
00062   NS_IMETHOD  CreateRenderingContext(nsIRenderingContext *&aContext);
00063   NS_IMETHOD  CreateRenderingContext(nsIView *aView, nsIRenderingContext *&aContext) {return (DeviceContextImpl::CreateRenderingContext(aView,aContext));}
00064   NS_IMETHOD  CreateRenderingContext(nsIWidget *aWidget, nsIRenderingContext *&aContext) {return (DeviceContextImpl::CreateRenderingContext(aWidget,aContext));}
00065 #ifdef NOT_NOW
00066   /* Xprint API supports offscreen surfaces but Mozilla does not make use of
00067    * them, see bug 124761 ("RFE: Make use of "offpaper" drawing surfaces in
00068    * some printing APIs"))
00069    */
00070   NS_IMETHOD  CreateRenderingContext(nsIDrawingSurface* aSurface, nsIRenderingContext *&aContext) {return (DeviceContextImpl::CreateRenderingContext(aSurface, aContext));}
00071 #else
00072   NS_IMETHOD  CreateRenderingContext(nsIDrawingSurface* aSurface, nsIRenderingContext *&aContext) {return NS_ERROR_NOT_IMPLEMENTED;}
00073 #endif /* NOT_NOW */
00074   NS_IMETHOD  CreateRenderingContextInstance(nsIRenderingContext *&aContext);
00075   NS_IMETHOD  SupportsNativeWidgets(PRBool &aSupportsWidgets);
00076 
00077   NS_IMETHOD  GetScrollBarDimensions(float &aWidth, float &aHeight) const;
00078 
00079   NS_IMETHOD         CheckFontExistence(const nsString& aFontName);
00080 
00081   NS_IMETHOD         GetDeviceSurfaceDimensions(PRInt32 &aWidth, PRInt32 &aHeight);
00082   NS_IMETHOD         GetRect(nsRect &aRect);
00083   NS_IMETHOD         GetClientRect(nsRect &aRect);
00084 
00085   NS_IMETHOD         GetDeviceContextFor(nsIDeviceContextSpec *aDevice,nsIDeviceContext *&aContext);
00086   NS_IMETHOD         GetSystemFont(nsSystemFontID anID, nsFont *aFont) const;
00087   NS_IMETHOD         BeginDocument(PRUnichar * aTitle, PRUnichar* aPrintToFileName, PRInt32 aStartPage, PRInt32 aEndPage);
00088   NS_IMETHOD         EndDocument(void);
00089   NS_IMETHOD         AbortDocument(void);
00090   NS_IMETHOD         BeginPage(void);
00091   NS_IMETHOD         EndPage(void);
00092 
00093   NS_IMETHOD         SetSpec(nsIDeviceContextSpec *aSpec);
00094   NS_IMETHOD         GetXlibRgbHandle(XlibRgbHandle *&aHandle)
00095                      { return mPrintContext->GetXlibRgbHandle(aHandle); }
00096   XlibRgbHandle *GetXlibRgbHandle() { XlibRgbHandle *h; mPrintContext->GetXlibRgbHandle(h); return h; } 
00097   NS_IMETHOD         GetDepth(PRUint32 &depth) 
00098                      { depth = xxlib_rgb_get_depth(GetXlibRgbHandle()); return NS_OK; }
00099   NS_IMETHOD         GetPrintContext(nsXPrintContext*& aContext);
00100 
00101   NS_IMETHOD         CreateFontCache();
00102 
00103   virtual void GetFontMetricsContext(nsFontMetricsXlibContext *&aContext) { aContext = mFontMetricsContext; };
00104   virtual void GetRCContext(nsRenderingContextXlibContext *&aContext) { aContext = mRCContext; };
00105  
00106 protected:
00107   virtual         ~nsDeviceContextXp();
00108   void             DestroyXPContext();
00109 
00110   nsCOMPtr<nsXPrintContext>      mPrintContext;  
00111   nsCOMPtr<nsIDeviceContextSpec> mSpec;
00112   nsCOMPtr<nsIDeviceContext>     mParentDeviceContext;
00113   nsFontMetricsXlibContext      *mFontMetricsContext;
00114   nsRenderingContextXlibContext *mRCContext;
00115 };
00116 
00117 #endif /* !nsDeviceContextXp_h___ */