Basic support for Type3 Fonts in Pdf + various refactorings

experimental/PdfViewer/autogen/SkPdfType3ShadingDictionary_autogen.h

Index: experimental/PdfViewer/autogen/SkPdfType3ShadingDictionary_autogen.h
===================================================================
--- experimental/PdfViewer/autogen/SkPdfType3ShadingDictionary_autogen.h	(revision 0)
+++ experimental/PdfViewer/autogen/SkPdfType3ShadingDictionary_autogen.h	(revision 0)
@@ -0,0 +1,115 @@
+#ifndef __DEFINED__SkPdfType3ShadingDictionary
+#define __DEFINED__SkPdfType3ShadingDictionary
+
+#include "SkPdfUtils.h"
+#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) {}
+
+  SkPdfType3ShadingDictionary(const SkPdfType3ShadingDictionary& from) : SkPdfShadingDictionary(from.fPodofoDoc, from.fPodofoObj) {}
+
+  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 NULL;
+  }
+
+/** (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 NULL;
+  }
+
+/** (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 NULL;
+  }
+
+};
+
+#endif  // __DEFINED__SkPdfType3ShadingDictionary