//========================================================================

//

// AcroForm.h

//

// Copyright 2012 Glyph & Cog, LLC

//

//========================================================================

#ifndef ACROFORM_H

#define ACROFORM_H

#include <aconf.h>

class TextString;

class Gfx;

class GfxFont;

class GfxFontDict;

class AcroFormField;

class XFAScanner;

class XFAField;

class XFAFieldBarcodeInfo;

//------------------------------------------------------------------------

class AcroForm {

public:

  static AcroForm *load(PDFDoc *docA, Catalog *catalog, Object *acroFormObjA);

  ~AcroForm();

  const char *getType();

  void draw(int pageNum, Gfx *gfx, GBool printing);

  int getNumFields();

  AcroFormField *getField(int idx);

  AcroFormField *findField(int pg, double x, double y);

  int findFieldIdx(int pg, double x, double y);

private:

  AcroForm(PDFDoc *docA, Object *acroFormObjA);

  void buildAnnotPageList(Catalog *catalog);

  int lookupAnnotPage(Object *annotRef);

  void scanField(Object *fieldRef, char *touchedObjs);

  PDFDoc *doc;

  Object acroFormObj;

  GBool needAppearances;

  GList *annotPages;    // [AcroFormAnnotPage]

  GList *fields;    // [AcroFormField]

  XFAScanner *xfaScanner;

  GBool isStaticXFA;

  friend class AcroFormField;

};

//------------------------------------------------------------------------

enum AcroFormFieldType {

  acroFormFieldPushbutton,

  acroFormFieldRadioButton,

  acroFormFieldCheckbox,

  acroFormFieldFileSelect,

  acroFormFieldMultilineText,

  acroFormFieldText,

  acroFormFieldBarcode,

  acroFormFieldComboBox,

  acroFormFieldListBox,

  acroFormFieldSignature

};

class AcroFormField {

public:

  static AcroFormField *load(AcroForm *acroFormA, Object *fieldRefA);

  ~AcroFormField();

  int getPageNum();

  const char *getType();

  Unicode *getName(int *length);

  Unicode *getValue(int *length);

  void getBBox(double *llx, double *lly, double *urx, double *ury);

  void getFont(Ref *fontID, double *fontSize);

  void getColor(double *red, double *green, double *blue);

  int getMaxLen();

  Object *getResources(Object *res);

  AcroFormFieldType getAcroFormFieldType() { return type; }

  Object *getFieldRef(Object *ref);

  Object *getValueObj(Object *val);

  Object *getParentRef(Object *parent);

  GBool getTypeFromParent() { return typeFromParent; }

private:

  AcroFormField(AcroForm *acroFormA, Object *fieldRefA, Object *fieldObjA,

    AcroFormFieldType typeA, TextString *nameA,

    Guint flagsA, GBool typeFromParentA, XFAField *xfaFieldA);

  Ref findFontName(char *fontTag);

  void draw(int pageNum, Gfx *gfx, GBool printing);

  void drawAnnot(int pageNum, Gfx *gfx, GBool printing,

     Object *annotRef, Object *annotObj);

  void drawExistingAppearance(Gfx *gfx, Dict *annot,

            double xMin, double yMin,

            double xMax, double yMax);

  void drawNewAppearance(Gfx *gfx, Dict *annot,

       double xMin, double yMin,

       double xMax, double yMax);

  void setColor(Array *a, GBool fill, int adjust, GString *appearBuf);

  void drawText(GString *text, GString *da, GfxFontDict *fontDict,

    GBool multiline, int comb, int quadding, int vAlign,

    GBool txField, GBool forceZapfDingbats, int rot,

    double x, double y, double width, double height,

    double border, GBool whiteBackground, GString *appearBuf);

  void drawListBox(GString **text, GBool *selection,

       int nOptions, int topIdx,

       GString *da, GfxFontDict *fontDict,

       GBool quadding, double xMin, double yMin,

       double xMax, double yMax, double border,

       GString *appearBuf);

  void getNextLine(GString *text, int start,

       GfxFont *font, double fontSize, double wMax,

       int *end, double *width, int *next);

  void drawCircle(double cx, double cy, double r, const char *cmd,

      GString *appearBuf);

  void drawCircleTopLeft(double cx, double cy, double r,

       GString *appearBuf);

  void drawCircleBottomRight(double cx, double cy, double r,

           GString *appearBuf);

  void drawBarcode(GString *value, GString *da, GfxFontDict *fontDict, int rot,

       double xMin, double yMin, double xMax, double yMax,

       XFAFieldBarcodeInfo *barcodeInfo, GString *appearBuf);

  GList *tokenize(GString *s);

  Object *getAnnotObj(Object *annotObj);

  Object *getAnnotResources(Dict *annot, Object *res);

  void buildDefaultResourceDict(Object *dr);

  Object *fieldLookup(const char *key, Object *obj);

  Object *fieldLookup(Dict *dict, const char *key, Object *obj);

  Unicode *utf8ToUnicode(GString *s, int *unicodeLength);

  GString *unicodeToLatin1(Unicode *u, int unicodeLength);

  GBool unicodeStringEqual(Unicode *u, int unicodeLength, GString *s);

  GBool unicodeStringEqual(Unicode *u, int unicodeLength, const char *s);

  GString *pictureFormatDateTime(GString *value, GString *picture);

  GString *pictureFormatNumber(GString *value, GString *picture);

  GString *pictureFormatText(GString *value, GString *picture);

  GBool isValidInt(GString *s, int start, int len);

  int convertInt(GString *s, int start, int len);

  AcroForm *acroForm;

  Object fieldRef;

  Object fieldObj;

  AcroFormFieldType type;

  TextString *name;

  Guint flags;

  GBool typeFromParent;

  XFAField *xfaField;

  friend class AcroForm;

};

#endif