Bug 226600 - Add a print preview flag to *nix print device context specs.

r=blizzard, sr=roc

widget/src/gtk2/nsDeviceContextSpecFactoryG.cpp

@@ -82,7 +82,7 @@ NS_IMETHODIMP nsDeviceContextSpecFactoryGTK :: CreateDeviceContextSpec(nsIWidget
   nsCOMPtr<nsIDeviceContextSpec> devSpec = do_CreateInstance(kDeviceContextSpecCID, &rv);
   if (NS_SUCCEEDED(rv))
   {
-    rv = ((nsDeviceContextSpecGTK *)devSpec.get())->Init(aPrintSettings);
+    rv = ((nsDeviceContextSpecGTK *)devSpec.get())->Init(aPrintSettings, aIsPrintPreview);
     if (NS_SUCCEEDED(rv))
     {
       aNewSpec = devSpec;

widget/src/gtk2/nsDeviceContextSpecG.cpp

@@ -319,13 +319,11 @@ NS_IMPL_ISUPPORTS1(nsDeviceContextSpecGTK,
  * - Xlib-toolkit: 
  *   file:     mozilla/gfx/src/xlib/nsDeviceContextSpecXlib.cpp 
  *   function: NS_IMETHODIMP nsDeviceContextSpecXlib::Init()
- * - Qt-toolkit:
- *   file:     mozilla/gfx/src/qt/nsDeviceContextSpecQT.cpp
- *   function: NS_IMETHODIMP nsDeviceContextSpecQT::Init()
  * 
  * ** Please update the other toolkits when changing this function.
  */
-NS_IMETHODIMP nsDeviceContextSpecGTK::Init(nsIPrintSettings *aPS)
+NS_IMETHODIMP nsDeviceContextSpecGTK::Init(nsIPrintSettings *aPS,
+        PRBool aIsPrintPreview)
 {
   DO_PR_DEBUG_LOG(("nsDeviceContextSpecGTK::Init(aPS=%p)\n", aPS));
   nsresult rv = NS_ERROR_FAILURE;
@@ -408,6 +406,7 @@ NS_IMETHODIMP nsDeviceContextSpecGTK::Init(nsIPrintSettings *aPS)
     mOrientation = orientation;
     mToPrinter   = !tofile;
     mCopies      = copies;
+    mIsPPreview  = aIsPrintPreview;
   }
 
   return rv;
@@ -419,6 +418,12 @@ NS_IMETHODIMP nsDeviceContextSpecGTK::GetToPrinter(PRBool &aToPrinter)
   return NS_OK;
 }
 
+NS_IMETHODIMP nsDeviceContextSpecGTK::GetIsPrintPreview(PRBool &aIsPPreview)
+{
+  aIsPPreview = mIsPPreview;
+  return NS_OK;
+}
+
 NS_IMETHODIMP nsDeviceContextSpecGTK::GetPrinterName ( const char **aPrinter )
 {
    *aPrinter = mPrinter;

widget/src/gtk2/nsDeviceContextSpecG.h

@@ -75,10 +75,11 @@ public:
 
   NS_DECL_ISUPPORTS
 
-  NS_IMETHOD Init(nsIPrintSettings* aPS);
+  NS_IMETHOD Init(nsIPrintSettings* aPS, PRBool aIsPrintPreview);
   NS_IMETHOD ClosePrintManager(); 
 
   NS_IMETHOD GetToPrinter(PRBool &aToPrinter); 
+  NS_IMETHOD GetIsPrintPreview(PRBool &aIsPPreview);
   NS_IMETHOD GetPrinterName ( const char **aPrinter );
   NS_IMETHOD GetCopies ( int &aCopies );
   NS_IMETHOD GetFirstPageFirst(PRBool &aFpf);     
@@ -100,9 +101,11 @@ public:
   
 protected:
   nsCOMPtr<nsIPrintSettings> mPrintSettings;
-  PRBool mToPrinter;          /* If PR_TRUE, print to printer */
-  PRBool mFpf;                /* If PR_TRUE, first page first */
-  PRBool mGrayscale;          /* If PR_TRUE, print grayscale */
+  PRBool mToPrinter : 1;      /* If PR_TRUE, print to printer */
+  PRBool mIsPPreview : 1;     /* If PR_TRUE, is print preview */
+  PRBool mFpf : 1;            /* If PR_TRUE, first page first */
+  PRBool mGrayscale : 1;      /* If PR_TRUE, print grayscale */
+  PRBool mCancel : 1;         /* If PR_TRUE, user cancelled */
   int    mOrientation;        /* Orientation e.g. Portrait */
   char   mCommand[PATH_MAX];  /* Print command e.g., lpr */
   char   mPath[PATH_MAX];     /* If toPrinter = PR_FALSE, dest file */
@@ -110,7 +113,6 @@ protected:
   char   mPaperName[256];     /* Printer name */
   char   mPlexName[256];      /* Plex mode name */
   int    mCopies;             /* number of copies */
-  PRBool mCancel;             /* If PR_TRUE, user cancelled */
   float  mLeft;               /* left margin */
   float  mRight;              /* right margin */
   float  mTop;                /* top margin */