Basic support for Type3 Fonts in Pdf + various refactorings

experimental/PdfViewer/SkPdfType3ShadingDictionary_autogen.h

-#ifndef __DEFINED__SkPdfType3ShadingDictionary
-#define __DEFINED__SkPdfType3ShadingDictionary
-
-#include "SkPdfEnums_autogen.h"
-#include "SkPdfArray_autogen.h"
-#include "SkPdfShadingDictionary_autogen.h"
-
-// Additional entries specific to a type 3 shading dictionary
-class SkPdfType3ShadingDictionary : public SkPdfShadingDictionary {
-public:
-  virtual SkPdfObjectType getType() const { return kType3ShadingDictionary_SkPdfObjectType;}
-  virtual SkPdfObjectType getTypeEnd() const { return (SkPdfObjectType)(kType3ShadingDictionary_SkPdfObjectType + 1);}
-public:
-  virtual SkPdfType3ShadingDictionary* asType3ShadingDictionary() {return this;}
-  virtual const SkPdfType3ShadingDictionary* asType3ShadingDictionary() const {return this;}
-
-private:
-  virtual SkPdfType1ShadingDictionary* asType1ShadingDictionary() {return NULL;}
-  virtual const SkPdfType1ShadingDictionary* asType1ShadingDictionary() const {return NULL;}
-
-  virtual SkPdfType2ShadingDictionary* asType2ShadingDictionary() {return NULL;}
-  virtual const SkPdfType2ShadingDictionary* asType2ShadingDictionary() const {return NULL;}
-
-  virtual SkPdfType4ShadingDictionary* asType4ShadingDictionary() {return NULL;}
-  virtual const SkPdfType4ShadingDictionary* asType4ShadingDictionary() const {return NULL;}
-
-  virtual SkPdfType5ShadingDictionary* asType5ShadingDictionary() {return NULL;}
-  virtual const SkPdfType5ShadingDictionary* asType5ShadingDictionary() const {return NULL;}
-
-  virtual SkPdfType6ShadingDictionary* asType6ShadingDictionary() {return NULL;}
-  virtual const SkPdfType6ShadingDictionary* asType6ShadingDictionary() const {return NULL;}
-
-public:
-private:
-public:
-  SkPdfType3ShadingDictionary(const PdfMemDocument* podofoDoc = NULL, const PdfObject* podofoObj = NULL) : SkPdfShadingDictionary(podofoDoc, podofoObj) {}
-
-  virtual bool valid() const {return true;}
-
-  SkPdfType3ShadingDictionary& operator=(const SkPdfType3ShadingDictionary& from) {this->fPodofoDoc = from.fPodofoDoc; this->fPodofoObj = from.fPodofoObj; return *this;}
-
-/** (Required) An array of six numbers [ x0 y0 r0 x1 y1 r1 ] specifying the centers and
- *  radii of the starting and ending circles, expressed in the shading's target coor-
- *  dinate space. The radii r0 and r1 must both be greater than or equal to 0. If one
- *  radius is 0, the corresponding circle is treated as a point; if both are 0, nothing is
- *  painted.
-**/
-  bool has_Coords() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Coords", "", NULL));
-  }
-
-  SkPdfArray Coords() const {
-    SkPdfArray ret;
-    if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Coords", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return SkPdfArray();
-  }
-
-/** (Optional) An array of two numbers [ t0 t1 ] specifying the limiting values of a
- *  parametric variable t. The variable is considered to vary linearly between these
- *  two values as the color gradient varies between the starting and ending circles.
- *  The variable t becomes the input argument to the color function(s). Default
- *  value: [0.0 1.0].
-**/
-  bool has_Domain() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Domain", "", NULL));
-  }
-
-  SkPdfArray Domain() const {
-    SkPdfArray ret;
-    if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Domain", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return SkPdfArray();
-  }
-
-/** (Required) A 1-in, n-out function or an array of n 1-in, 1-out functions (where n
- *  is the number of color components in the shading dictionary's color space). The
- *  function(s) are called with values of the parametric variable t in the domain de-
- *  fined by the shading dictionary's Domain entry. Each function's domain must be
- *  a superset of that of the shading dictionary. If the value returned by the function
- *  for a given color component is out of range, it will be adjusted to the nearest
- *  valid value.
-**/
-  bool has_Function() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Function", "", NULL));
-  }
-
-  SkPdfFunction Function() const {
-    SkPdfFunction ret;
-    if (FunctionFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Function", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return SkPdfFunction();
-  }
-
-/** (Optional) An array of two boolean values specifying whether to extend the
- *  shading beyond the starting and ending circles, respectively. Default value:
- *  [false false].
-**/
-  bool has_Extend() const {
-    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Extend", "", NULL));
-  }
-
-  SkPdfArray Extend() const {
-    SkPdfArray ret;
-    if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Extend", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return SkPdfArray();
-  }
-
-};
-
-#endif  // __DEFINED__SkPdfType3ShadingDictionary