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nsDeviceContextMac.h
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00015  * The Original Code is mozilla.org code.
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00017  * The Initial Developer of the Original Code is
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00024  * Alternatively, the contents of this file may be used under the terms of
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00037 
00038 #ifndef nsDeviceContextMac_h___
00039 #define nsDeviceContextMac_h___
00040 
00041 #include "nsDeviceContext.h"
00042 #include "nsUnitConversion.h"
00043 #include "nsIWidget.h"
00044 #include "nsIView.h"
00045 #include "nsIRenderingContext.h"
00046 #include "nsIFontEnumerator.h"
00047 #include <Types.h>
00048 #include <Quickdraw.h>
00049 
00050 #include "nsIScreen.h"
00051 #include "nsIScreenManager.h"
00052 
00053 
00054 class nsDeviceContextMac : public DeviceContextImpl
00055 {
00056 public:
00057   nsDeviceContextMac();
00058 
00059   NS_IMETHOD  Init(nsNativeWidget aNativeWidget);  
00060 
00061   /* The following line tells the compiler that we are using the parent class'
00062      functions, unless explicitly overridden.  Avoids an ugly warning */
00063   using DeviceContextImpl::CreateRenderingContext;
00064   NS_IMETHOD  CreateRenderingContext(nsIRenderingContext *&aContext);
00065   NS_IMETHOD  SupportsNativeWidgets(PRBool &aSupportsWidgets);
00066 
00067   NS_IMETHOD  GetScrollBarDimensions(float &aWidth, float &aHeight) const;
00068   NS_IMETHOD  GetSystemFont(nsSystemFontID anID, nsFont *aFont) const;
00069 
00070   NS_IMETHOD  CheckFontExistence(const nsString& aFontName);
00071   NS_IMETHOD  GetDepth(PRUint32& aDepth);
00072 
00073   NS_IMETHOD  GetDeviceSurfaceDimensions(PRInt32 &aWidth, PRInt32 &aHeight);
00074   NS_IMETHOD  GetRect(nsRect &aRect);
00075   NS_IMETHOD  GetClientRect(nsRect &aRect);
00076 
00077   NS_IMETHOD  GetDeviceContextFor(nsIDeviceContextSpec *aDevice,
00078                                  nsIDeviceContext *&aContext);
00079 
00080   NS_IMETHOD  BeginDocument(PRUnichar * aTitle, 
00081                               PRUnichar*  aPrintToFileName,
00082                               PRInt32     aStartPage, 
00083                               PRInt32     aEndPage);
00084   NS_IMETHOD  EndDocument(void);
00085   NS_IMETHOD  AbortDocument(void);
00086 
00087   NS_IMETHOD  BeginPage(void);
00088   NS_IMETHOD  EndPage(void);
00089   PRBool      IsPrinter()   {if (nsnull != mSpec){return (PR_TRUE);}else{return (PR_FALSE);} };
00090 
00091 
00092 
00093 protected:
00094   virtual     ~nsDeviceContextMac();
00095   
00096        virtual nsresult CreateFontAliasTable();
00097 
00098   void FindScreenForSurface ( nsIScreen** outScreen ) ;
00099 
00100   Rect                                                         mPageRect;
00101   nsCOMPtr<nsIDeviceContextSpec> mSpec;
00102   GrafPtr                                                      mOldPort;
00103   nsCOMPtr<nsIScreenManager> mScreenManager;
00104   nsCOMPtr<nsIScreen> mPrimaryScreen;         // cache the screen for single-monitor systems
00105   
00106 public:
00107   // InitFontInfoList and nsHashTable are static because GetMacFontNumber is static
00108   static void InitFontInfoList();
00109   static nsHashtable* gFontInfoList;
00110 public:
00111   static bool GetMacFontNumber(const nsString& aFontName, short &fontNum);
00112 
00113 private:
00114        static PRUint32             mPixelsPerInch;
00115        static PRUint32   sNumberOfScreens;       // how many screens we have.
00116 public:
00117        static PRUint32             GetScreenResolution();
00118 };
00119 
00120 
00121 class nsFontEnumeratorMac : public nsIFontEnumerator
00122 {
00123 public:
00124   nsFontEnumeratorMac();
00125   NS_DECL_ISUPPORTS
00126   NS_DECL_NSIFONTENUMERATOR
00127 };
00128 
00129 #endif /* nsDeviceContextMac_h___ */