From 835e373b3eeaabcd0621ed6798ab500f37982fae Mon Sep 17 00:00:00 2001
From: Calvin Morrison <calvin@pobox.com>
Date: Wed, 5 Apr 2023 14:13:39 -0400
Subject: xpdf-no-select-disable

---
 xpdf/Annot.h | 185 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 185 insertions(+)
 create mode 100644 xpdf/Annot.h

(limited to 'xpdf/Annot.h')

diff --git a/xpdf/Annot.h b/xpdf/Annot.h
new file mode 100644
index 0000000..6ba5ff4
--- /dev/null
+++ b/xpdf/Annot.h
@@ -0,0 +1,185 @@
+//========================================================================
+//
+// Annot.h
+//
+// Copyright 2000-2003 Glyph & Cog, LLC
+//
+//========================================================================
+
+#ifndef ANNOT_H
+#define ANNOT_H
+
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
+#pragma interface
+#endif
+
+class XRef;
+class Catalog;
+class Gfx;
+class GfxFontDict;
+class PDFDoc;
+
+//------------------------------------------------------------------------
+// AnnotBorderStyle
+//------------------------------------------------------------------------
+
+enum AnnotBorderType {
+  annotBorderSolid,
+  annotBorderDashed,
+  annotBorderBeveled,
+  annotBorderInset,
+  annotBorderUnderlined
+};
+
+class AnnotBorderStyle {
+public:
+
+  AnnotBorderStyle(AnnotBorderType typeA, double widthA,
+		   double *dashA, int dashLengthA,
+		   double *colorA, int nColorCompsA);
+  ~AnnotBorderStyle();
+
+  AnnotBorderType getType() { return type; }
+  double getWidth() { return width; }
+  void getDash(double **dashA, int *dashLengthA)
+    { *dashA = dash; *dashLengthA = dashLength; }
+  int getNumColorComps() { return nColorComps; }
+  double *getColor() { return color; }
+
+private:
+
+  AnnotBorderType type;
+  double width;
+  double *dash;
+  int dashLength;
+  double color[4];
+  int nColorComps;
+};
+
+//------------------------------------------------------------------------
+
+enum AnnotLineEndType {
+  annotLineEndNone,
+  annotLineEndSquare,
+  annotLineEndCircle,
+  annotLineEndDiamond,
+  annotLineEndOpenArrow,
+  annotLineEndClosedArrow,
+  annotLineEndButt,
+  annotLineEndROpenArrow,
+  annotLineEndRClosedArrow,
+  annotLineEndSlash
+};
+
+//------------------------------------------------------------------------
+// Annot
+//------------------------------------------------------------------------
+
+class Annot {
+public:
+
+  Annot(PDFDoc *docA, Dict *dict, Ref *refA);
+  ~Annot();
+  GBool isOk() { return ok; }
+
+  void draw(Gfx *gfx, GBool printing);
+
+  GString *getType() { return type; }
+  double getXMin() { return xMin; }
+  double getYMin() { return yMin; }
+  double getXMax() { return xMax; }
+  double getYMax() { return yMax; }
+  Object *getObject(Object *obj);
+
+  // Check if point is inside the annotation rectangle.
+  GBool inRect(double x, double y)
+    { return xMin <= x && x <= xMax && yMin <= y && y <= yMax; }
+
+  // Get appearance object.
+  Object *getAppearance(Object *obj) { return appearance.fetch(xref, obj); }
+
+  AnnotBorderStyle *getBorderStyle() { return borderStyle; }
+
+  GBool match(Ref *refA)
+    { return ref.num == refA->num && ref.gen == refA->gen; }
+
+  void generateAnnotAppearance();
+
+private:
+ 
+  void generateLineAppearance();
+  void generatePolyLineAppearance();
+  void generatePolygonAppearance();
+  void generateFreeTextAppearance();
+  void setLineStyle(AnnotBorderStyle *bs, double *lineWidth);
+  void setStrokeColor(double *color, int nComps);
+  GBool setFillColor(Object *colorObj);
+  AnnotLineEndType parseLineEndType(Object *obj);
+  void adjustLineEndpoint(AnnotLineEndType lineEnd,
+			  double x, double y, double dx, double dy,
+			  double w, double *tx, double *ty);
+  void drawLineArrow(AnnotLineEndType lineEnd,
+		     double x, double y, double dx, double dy,
+		     double w, GBool fill);
+  void drawCircle(double cx, double cy, double r, const char *cmd);
+  void drawCircleTopLeft(double cx, double cy, double r);
+  void drawCircleBottomRight(double cx, double cy, double r);
+  void drawText(GString *text, GString *da, int quadding, double margin,
+		int rot);
+
+  PDFDoc *doc;
+  XRef *xref;			// the xref table for this PDF file
+  Ref ref;			// object ref identifying this annotation
+  GString *type;		// annotation type
+  GString *appearanceState;	// appearance state name
+  Object appearance;		// a reference to the Form XObject stream
+				//   for the normal appearance
+  GString *appearBuf;
+  double xMin, yMin,		// annotation rectangle
+         xMax, yMax;
+  Guint flags;
+  AnnotBorderStyle *borderStyle;
+  Object ocObj;			// optional content entry
+  GBool ok;
+};
+
+//------------------------------------------------------------------------
+// Annots
+//------------------------------------------------------------------------
+
+class Annots {
+public:
+
+  // Build a list of Annot objects.
+  Annots(PDFDoc *docA, Object *annotsObj);
+
+  ~Annots();
+
+  // Iterate through list of annotations.
+  int getNumAnnots() { return nAnnots; }
+  Annot *getAnnot(int i) { return annots[i]; }
+
+  // If point <x>,<y> is in an annotation, return the associated
+  // annotation; else return NULL.
+  Annot *find(double x, double y);
+  int findIdx(double x, double y);
+
+  // Generate an appearance stream for any non-form-field annotation
+  // that is missing it.
+  void generateAnnotAppearances();
+
+private:
+
+  void scanFieldAppearances(Dict *node, Ref *ref, Dict *parent,
+			    Dict *acroForm);
+
+  Annot *findAnnot(Ref *ref);
+
+  PDFDoc *doc;
+  Annot **annots;
+  int nAnnots;
+};
+
+#endif
-- 
cgit v1.2.3