Added PrintContext class and changed document viewer impl to use it instead

of a galley mode context

layout/base/nsPresContext.h

@@ -252,4 +252,9 @@ extern NS_LAYOUT nsresult
 extern NS_LAYOUT nsresult
   NS_NewPrintPreviewContext(nsIPresContext** aInstancePtrResult);
 
+// Factory method to create a "paginated" presentation context for
+// printing
+extern NS_LAYOUT nsresult
+  NS_NewPrintContext(nsIPresContext** aInstancePtrResult);
+
 #endif /* nsIPresContext_h___ */

layout/base/public/nsIPresContext.h

@@ -252,4 +252,9 @@ extern NS_LAYOUT nsresult
 extern NS_LAYOUT nsresult
   NS_NewPrintPreviewContext(nsIPresContext** aInstancePtrResult);
 
+// Factory method to create a "paginated" presentation context for
+// printing
+extern NS_LAYOUT nsresult
+  NS_NewPrintContext(nsIPresContext** aInstancePtrResult);
+
 #endif /* nsIPresContext_h___ */

layout/base/public/nsPresContext.h

@@ -252,4 +252,9 @@ extern NS_LAYOUT nsresult
 extern NS_LAYOUT nsresult
   NS_NewPrintPreviewContext(nsIPresContext** aInstancePtrResult);
 
+// Factory method to create a "paginated" presentation context for
+// printing
+extern NS_LAYOUT nsresult
+  NS_NewPrintContext(nsIPresContext** aInstancePtrResult);
+
 #endif /* nsIPresContext_h___ */

layout/base/src/Makefile.in

@@ -35,6 +35,7 @@ CPPSRCS =				\
 	nsFrameImageLoader.cpp		\
 	nsGalleyContext.cpp		\
 	nsPresContext.cpp		\
+	nsPrintContext.cpp	\
 	nsPrintPreviewContext.cpp	\
 	nsSelection.cpp			\
 	nsSelectionPoint.cpp		\

layout/base/src/makefile.win

@@ -28,6 +28,7 @@ CPPSRCS =				\
 	nsFrameImageLoader.cpp		\
 	nsGalleyContext.cpp		\
 	nsPresContext.cpp		\
+	nsPrintContext.cpp	\
 	nsPrintPreviewContext.cpp	\
 	nsSelection.cpp			\
 	nsSelectionPoint.cpp		\
@@ -54,6 +55,7 @@ CPP_OBJS=					\
 	.\$(OBJDIR)\nsFrameImageLoader.obj	\
 	.\$(OBJDIR)\nsGalleyContext.obj		\
 	.\$(OBJDIR)\nsPresContext.obj		\
+	.\$(OBJDIR)\nsPrintContext.obj	\
 	.\$(OBJDIR)\nsPrintPreviewContext.obj	\
 	.\$(OBJDIR)\nsSelection.obj		\
 	.\$(OBJDIR)\nsSelectionPoint.obj	\

layout/base/src/nsPrintContext.cpp

@@ -0,0 +1,86 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+#include "nsPresContext.h"
+#include "nsIDeviceContext.h"
+#include "nsUnitConversion.h"
+#include "nsIView.h"
+#include "nsIWidget.h"
+#include "nsGfxCIID.h"
+#include "nsLayoutAtoms.h"
+
+static NS_DEFINE_IID(kIPresContextIID, NS_IPRESCONTEXT_IID);
+
+class PrintContext : public nsPresContext {
+public:
+  PrintContext();
+  ~PrintContext();
+
+  NS_IMETHOD GetMedium(nsIAtom*& aMedium);
+  virtual PRBool IsPaginated();
+  virtual nscoord GetPageWidth();
+  virtual nscoord GetPageHeight();
+};
+
+PrintContext::PrintContext()
+{
+}
+
+PrintContext::~PrintContext()
+{
+}
+
+NS_IMETHODIMP
+PrintContext::GetMedium(nsIAtom*& aMedium)
+{
+  aMedium = nsLayoutAtoms::print;
+  NS_ADDREF(aMedium);
+  return NS_OK;
+}
+
+PRBool PrintContext::IsPaginated()
+{
+  return PR_TRUE;
+}
+
+nscoord PrintContext::GetPageWidth()
+{
+  // XXX assumes a 1/2 margin around all sides
+  return (nscoord) NS_INCHES_TO_TWIPS(7.5);
+}
+
+nscoord PrintContext::GetPageHeight()
+{
+  // XXX assumes a 1/2 margin around all sides
+  return (nscoord) NS_INCHES_TO_TWIPS(10);
+}
+
+NS_LAYOUT nsresult
+NS_NewPrintContext(nsIPresContext** aInstancePtrResult)
+{
+  if (aInstancePtrResult == nsnull) {
+    return NS_ERROR_NULL_POINTER;
+  }
+
+  PrintContext *it = new PrintContext;
+
+  if (it == nsnull) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  return it->QueryInterface(kIPresContextIID, (void **) aInstancePtrResult);
+}

layout/build/dlldeps.cpp

@@ -29,6 +29,7 @@ void XXXNeverCalled()
   nsIPresContext* cx;
   NS_NewGalleyContext(&cx);
   NS_NewPrintPreviewContext(&cx);
+  NS_NewPrintContext(&cx);
   nsIStyleSet* ss;
   NS_NewStyleSet(&ss);
   nsIDocument* doc;