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

//

// XFAScanner.h

//

// Copyright 2020 Glyph & Cog, LLC

//

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

#ifndef XFASCANNER_H

#define XFASCANNER_H

#include <aconf.h>

class GHash;

class ZxElement;

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

enum XFAFieldLayoutHAlign {

  xfaFieldLayoutHAlignLeft,

  xfaFieldLayoutHAlignCenter,

  xfaFieldLayoutHAlignRight

};

enum XFAFieldLayoutVAlign {

  xfaFieldLayoutVAlignTop,

  xfaFieldLayoutVAlignMiddle,

  xfaFieldLayoutVAlignBottom

};

class XFAFieldLayoutInfo {

public:

  XFAFieldLayoutInfo(XFAFieldLayoutHAlign hAlignA,

         XFAFieldLayoutVAlign vAlignA);

  XFAFieldLayoutHAlign hAlign;

  XFAFieldLayoutVAlign vAlign;

};

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

enum XFAFieldPictureSubtype {

  xfaFieldPictureDateTime,

  xfaFieldPictureNumeric,

  xfaFieldPictureText

};

class XFAFieldPictureInfo {

public:

  XFAFieldPictureInfo(XFAFieldPictureSubtype subtypeA, GString *formatA);

  ~XFAFieldPictureInfo();

  XFAFieldPictureSubtype subtype;

  GString *format;    // picture format string

};

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

class XFAFieldBarcodeInfo {

public:

  XFAFieldBarcodeInfo(GString *barcodeTypeA, double wideNarrowRatioA,

          double moduleWidthA, double moduleHeightA,

          int dataLengthA, int errorCorrectionLevelA,

          GString *textLocationA);

  ~XFAFieldBarcodeInfo();

  GString *barcodeType;

  double wideNarrowRatio;

  double moduleWidth;

  double moduleHeight;

  int dataLength;

  int errorCorrectionLevel;

  GString *textLocation;

};

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

class XFAField {

public:

  XFAField(GString *nameA, GString *fullNameA, GString *valueA,

     XFAFieldLayoutInfo *layoutInfoA,

     XFAFieldPictureInfo *pictureInfoA,

     XFAFieldBarcodeInfo *barcodeInfoA);

  ~XFAField();

  // Get the field's value, or NULL if it doesn't have a value.  Sets

  // *[length] to the length of the Unicode string.

  GString *getValue() { return value; }

  // Return a pointer to the field's picture formatting info object,

  // or NULL if the field doesn't have picture formatting.

  XFAFieldPictureInfo *getPictureInfo() { return pictureInfo; }

  // Return a pointer to the field's layout info object, or NULL if

  // the field doesn't have layout info.

  XFAFieldLayoutInfo *getLayoutInfo() { return layoutInfo; }

  // Return a pointer to the field's barcode info object, or NULL if

  // the field isn't a barcode.

  XFAFieldBarcodeInfo *getBarcodeInfo() { return barcodeInfo; }

private:

  friend class XFAScanner;

  GString *name;    // UTF-8

  GString *fullName;    // UTF-8

  GString *value;   // UTF-8

  XFAFieldLayoutInfo *layoutInfo;

  XFAFieldPictureInfo *pictureInfo;

  XFAFieldBarcodeInfo *barcodeInfo;

};

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

class XFAScanner {

public:

  static XFAScanner *load(Object *xfaObj);

  virtual ~XFAScanner();

  // Find an XFA field matchined the specified AcroForm field name.

  // Returns NULL if there is no matching field.

  XFAField *findField(GString *acroFormFieldName);

private:

  XFAScanner();

  static GString *readXFAStreams(Object *xfaObj);

  GHash *scanFormValues(ZxElement *xmlRoot);

  void scanFormNode(ZxElement *elem, GString *fullName,

        GHash *formValues);

  void scanNode(ZxElement *elem,

    GString *parentName, GString *parentFullName,

    GHash *nameIdx, GHash *fullNameIdx,

    GString *exclGroupName, ZxElement *xmlRoot,

    GHash *formValues);

  void scanField(ZxElement *elem, GString *name, GString *fullName,

     GString *exclGroupName, ZxElement *xmlRoot,

     GHash *formValues);

  GString *getFieldValue(ZxElement *elem, GString *name,

       GString *fullName, GString *exclGroupName,

       ZxElement *xmlRoot, GHash *formValues);

  GString *getDatasetsValue(char *partName, ZxElement *elem);

  XFAFieldLayoutInfo *getFieldLayoutInfo(ZxElement *elem);

  XFAFieldPictureInfo *getFieldPictureInfo(ZxElement *elem);

  XFAFieldBarcodeInfo *getFieldBarcodeInfo(ZxElement *elem);

  double getMeasurement(GString *s);

  GString *getNodeName(ZxElement *elem);

  GString *getNodeFullName(ZxElement *elem);

  GBool nodeIsBindGlobal(ZxElement *elem);

  GBool nodeIsBindNone(ZxElement *elem);

  GHash *fields;    // [XFAField]

};

#endif