Basic support for Type3 Fonts in Pdf + various refactorings

experimental/PdfViewer/SkPdfType1FontDictionary_autogen.h

Index: experimental/PdfViewer/SkPdfType1FontDictionary_autogen.h
===================================================================
--- experimental/PdfViewer/SkPdfType1FontDictionary_autogen.h	(revision 9734)
+++ experimental/PdfViewer/SkPdfType1FontDictionary_autogen.h	(working copy)
@@ -1,219 +0,0 @@
-#ifndef __DEFINED__SkPdfType1FontDictionary
-#define __DEFINED__SkPdfType1FontDictionary
-
-#include "SkPdfEnums_autogen.h"
-#include "SkPdfArray_autogen.h"
-#include "SkPdfFontDictionary_autogen.h"
-
-// Entries in a Type 1 font dictionary
-class SkPdfType1FontDictionary : public SkPdfFontDictionary {
-public:
-  virtual SkPdfObjectType getType() const { return kType1FontDictionary_SkPdfObjectType;}
-  virtual SkPdfObjectType getTypeEnd() const { return kType1FontDictionary__End_SkPdfObjectType;}
-public:
-  virtual SkPdfType1FontDictionary* asType1FontDictionary() {return this;}
-  virtual const SkPdfType1FontDictionary* asType1FontDictionary() const {return this;}
-
-private:
-  virtual SkPdfCIDFontDictionary* asCIDFontDictionary() {return NULL;}
-  virtual const SkPdfCIDFontDictionary* asCIDFontDictionary() const {return NULL;}
-
-  virtual SkPdfType0FontDictionary* asType0FontDictionary() {return NULL;}
-  virtual const SkPdfType0FontDictionary* asType0FontDictionary() const {return NULL;}
-
-  virtual SkPdfType3FontDictionary* asType3FontDictionary() {return NULL;}
-  virtual const SkPdfType3FontDictionary* asType3FontDictionary() const {return NULL;}
-
-public:
-private:
-public:
-  SkPdfType1FontDictionary(const PdfMemDocument* podofoDoc = NULL, const PdfObject* podofoObj = NULL) : SkPdfFontDictionary(podofoDoc, podofoObj) {}
-
-  virtual bool valid() const {return true;}
-
-  SkPdfType1FontDictionary& operator=(const SkPdfType1FontDictionary& from) {this->fPodofoDoc = from.fPodofoDoc; this->fPodofoObj = from.fPodofoObj; return *this;}
-
-/** (Required) The type of PDF object that this dictionary describes; must be
- *  Font for a font dictionary.
-**/
-  bool has_Type() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Type", "", NULL));
-  }
-
-  std::string Type() const {
-    std::string ret;
-    if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Type", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return "";
-  }
-
-/** (Required) The type of font; must be Type1 for a Type 1 font.
-**/
-  bool has_Subtype() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Subtype", "", NULL));
-  }
-
-  std::string Subtype() const {
-    std::string ret;
-    if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Subtype", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return "";
-  }
-
-/** (Required in PDF 1.0; optional otherwise) The name by which this font is ref-
- *  erenced in the Font subdictionary of the current resource dictionary.
- *  Note: This entry is obsolescent and its use is no longer recommended. (See
- *  implementation note 42 in Appendix H.)
-**/
-  bool has_Name() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Name", "", NULL));
-  }
-
-  std::string Name() const {
-    std::string ret;
-    if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Name", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return "";
-  }
-
-/** (Required) The PostScript name of the font. For Type 1 fonts, this is usually
- *  the value of the FontName entry in the font program; for more information,
- *  see Section 5.2 of the PostScript Language Reference, Third Edition. The Post-
- *  Script name of the font can be used to find the font's definition in the viewer
- *  application or its environment. It is also the name that will be used when
- *  printing to a PostScript output device.
-**/
-  bool has_BaseFont() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "BaseFont", "", NULL));
-  }
-
-  std::string BaseFont() const {
-    std::string ret;
-    if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "BaseFont", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return "";
-  }
-
-/** (Required except for the standard 14 fonts) The first character code defined in
- *  the font's Widths array.
-**/
-  bool has_FirstChar() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "FirstChar", "", NULL));
-  }
-
-  long FirstChar() const {
-    long ret;
-    if (LongFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "FirstChar", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return 0;
-  }
-
-/** (Required except for the standard 14 fonts) The last character code defined in
- *  the font's Widths array.
-**/
-  bool has_LastChar() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "LastChar", "", NULL));
-  }
-
-  long LastChar() const {
-    long ret;
-    if (LongFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "LastChar", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return 0;
-  }
-
-/** (Required except for the standard 14 fonts; indirect reference preferred) An array
- *  of (LastChar - FirstChar + 1) widths, each element being the glyph width for
- *  the character whose code is FirstChar plus the array index. For character
- *  codes outside the range FirstChar to LastChar, the value of MissingWidth from
- *  the FontDescriptor entry for this font is used. The glyph widths are measured
- *  in units in which 1000 units corresponds to 1 unit in text space. These widths
- *  must be consistent with the actual widths given in the font program itself.
- *  (See implementation note 43 in Appendix H.) For more information on
- *  glyph widths and other glyph metrics, see Section 5.1.3, "Glyph Positioning
- *  and Metrics."
-**/
-  bool has_Widths() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Widths", "", NULL));
-  }
-
-  SkPdfArray Widths() const {
-    SkPdfArray ret;
-    if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Widths", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return SkPdfArray();
-  }
-
-/** (Required except for the standard 14 fonts; must be an indirect reference) A font
- *  descriptor describing the font's metrics other than its glyph widths (see Sec-
- *  tion 5.7, "Font Descriptors").
- *     Note: For the standard 14 fonts, the entries FirstChar, LastChar, Widths, and
- *     FontDescriptor must either all be present or all absent. Ordinarily, they are ab-
- *     sent; specifying them enables a standard font to be overridden (see "Standard
- *     Type 1 Fonts," below).
-**/
-  bool has_FontDescriptor() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "FontDescriptor", "", NULL));
-  }
-
-  SkPdfDictionary* FontDescriptor() const {
-    SkPdfDictionary* ret;
-    if (DictionaryFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "FontDescriptor", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return NULL;
-  }
-
-/** (Optional) A specification of the font's character encoding, if different from
- *  its built-in encoding. The value of Encoding may be either the name of a pre-
- *  defined encoding (MacRomanEncoding, MacExpertEncoding, or WinAnsi-
- *  Encoding, as described in Appendix D) or an encoding dictionary that
- *  specifies differences from the font's built-in encoding or from a specified pre-
- *  defined encoding (see Section 5.5.5, "Character Encoding").
-**/
-  bool has_Encoding() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Encoding", "", NULL));
-  }
-
-  bool isEncodingAName() const {
-    SkPdfObject* ret = NULL;
-    if (!ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Encoding", "", &ret)) return false;
-    return ret->podofo()->GetDataType() == ePdfDataType_Name;
-  }
-
-  std::string getEncodingAsName() const {
-    std::string ret = "";
-    if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Encoding", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return "";
-  }
-
-  bool isEncodingADictionary() const {
-    SkPdfObject* ret = NULL;
-    if (!ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Encoding", "", &ret)) return false;
-    return ret->podofo()->GetDataType() == ePdfDataType_Dictionary;
-  }
-
-  SkPdfDictionary* getEncodingAsDictionary() const {
-    SkPdfDictionary* ret = NULL;
-    if (DictionaryFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Encoding", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return NULL;
-  }
-
-/** (Optional; PDF 1.2) A stream containing a CMap file that maps character
- *  codes to Unicode values (see Section 5.9, "ToUnicode CMaps").
-**/
-  bool has_ToUnicode() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "ToUnicode", "", NULL));
-  }
-
-  SkPdfStream* ToUnicode() const {
-    SkPdfStream* ret;
-    if (StreamFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "ToUnicode", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return NULL;
-  }
-
-};
-
-#endif  // __DEFINED__SkPdfType1FontDictionary