adding Thebes printing APIs

git-svn-id: svn://10.0.0.236/trunk@188644 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/gfx/thebes/public/gfxASurface.h

@@ -42,6 +42,7 @@
 
 #include "gfxTypes.h"
 #include "gfxRect.h"
+#include "nsStringFwd.h"
 
 /**
  * A surface is something you can draw on. Instantiate a subclass of this
@@ -78,6 +79,13 @@ public:
                                            (int) r.size.width, (int) r.size.height);
     }
 
+    /* Printing backend functions */
+    virtual nsresult BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName) { return NS_ERROR_NOT_IMPLEMENTED; }
+    virtual nsresult EndPrinting() { return NS_ERROR_NOT_IMPLEMENTED; }
+    virtual nsresult AbortPrinting() { return NS_ERROR_NOT_IMPLEMENTED; }
+    virtual nsresult BeginPage() { return NS_ERROR_NOT_IMPLEMENTED; }
+    virtual nsresult EndPage() { return NS_ERROR_NOT_IMPLEMENTED; }
+
 protected:
     void Init(cairo_surface_t* surface) {
         mDestroyed = PR_FALSE;

mozilla/gfx/thebes/public/gfxContext.h

@@ -504,12 +504,15 @@ public:
      */
     void PopFilter();
 
-
     /**
-     * ...
-     *
+     * Printing functions
      */
-    void ShowPage();
+    // XXX look and see if the arguments here should be a seperate object
+    void BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName);
+    void EndPrinting();
+    void AbortPrinting();
+    void BeginPage();
+    void EndPage();
 
 private:
     cairo_t *mCairo;

mozilla/gfx/thebes/public/gfxWindowsSurface.h

@@ -52,6 +52,13 @@ public:
     virtual ~gfxWindowsSurface();
 
     HDC GetDC() { return mDC; }
+
+    nsresult BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName);
+    nsresult EndPrinting();
+    nsresult AbortPrinting();
+    nsresult BeginPage();
+    nsresult EndPage();
+
 private:
     PRBool mOwnsDC;
     HDC mDC;

mozilla/gfx/thebes/src/gfxContext.cpp

@@ -526,7 +526,26 @@ void gfxContext::PopFilter()
 
 }
 
-void gfxContext::ShowPage()
+void gfxContext::BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName)
 {
-    cairo_show_page(mCairo);
+    mSurface->BeginPrinting(aTitle, aPrintToFileName);
+}
+
+void gfxContext::EndPrinting()
+{
+    mSurface->EndPrinting();
+}
+void gfxContext::AbortPrinting()
+{
+    mSurface->AbortPrinting();
+}
+void gfxContext::BeginPage()
+{
+    mSurface->BeginPage();
+}
+
+void gfxContext::EndPage()
+{
+    if (NS_FAILED(mSurface->EndPage()))
+        cairo_show_page(mCairo);
 }

mozilla/gfx/thebes/src/gfxWindowsSurface.cpp

@@ -36,6 +36,7 @@
  * ***** END LICENSE BLOCK ***** */
 
 #include "gfxWindowsSurface.h"
+#include "nsString.h"
 
 THEBES_IMPL_REFCOUNTING(gfxWindowsSurface)
 
@@ -116,3 +117,77 @@ gfxWindowsSurface::~gfxWindowsSurface()
             ::DeleteDC(mDC);
     }
 }
+
+
+static char*
+GetACPString(const nsAString& aStr)
+{
+    int acplen = aStr.Length() * 2 + 1;
+    char * acp = new char[acplen];
+    if(acp) {
+        int outlen = ::WideCharToMultiByte(CP_ACP, 0, 
+                                           PromiseFlatString(aStr).get(),
+                                           aStr.Length(),
+                                           acp, acplen, NULL, NULL);
+        if (outlen > 0)
+            acp[outlen] = '\0';  // null terminate
+    }
+    return acp;
+}
+
+nsresult gfxWindowsSurface::BeginPrinting(const nsAString& aTitle,
+                                          const nsAString& aPrintToFileName)
+{
+#define DOC_TITLE_LENGTH 30
+    DOCINFO docinfo;
+
+    nsString titleStr;
+    titleStr = aTitle;
+    if (titleStr.Length() > DOC_TITLE_LENGTH) {
+        titleStr.SetLength(DOC_TITLE_LENGTH-3);
+        titleStr.AppendLiteral("...");
+    }
+    char *title = GetACPString(titleStr);
+
+    char *docName = nsnull;
+    if (!aPrintToFileName.IsEmpty()) {
+        docName = ToNewCString(aPrintToFileName);
+    }
+
+    docinfo.cbSize = sizeof(docinfo);
+    docinfo.lpszDocName = title ? title : "Mozilla Document";
+    docinfo.lpszOutput = docName;
+    docinfo.lpszDatatype = NULL;
+    docinfo.fwType = 0;
+
+    ::StartDoc(mDC, &docinfo);
+        
+    delete [] title;
+    if (docName != nsnull) nsMemory::Free(docName);
+
+    return NS_OK;
+}
+
+nsresult gfxWindowsSurface::EndPrinting()
+{
+    ::EndDoc(mDC);
+    return NS_OK;
+}
+
+nsresult gfxWindowsSurface::AbortPrinting()
+{
+    ::AbortDoc(mDC);
+    return NS_OK;
+}
+
+nsresult gfxWindowsSurface::BeginPage()
+{
+    ::StartPage(mDC);
+    return NS_OK;
+}
+
+nsresult gfxWindowsSurface::EndPage()
+{
+    ::EndPage(mDC);
+    return NS_OK;
+}