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//========================================================================
//
// Annot.cc
//
// Copyright 2000-2003 Glyph & Cog, LLC
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2006 Scott Turner <scotty1024@mac.com>
// Copyright (C) 2007, 2008 Julien Rebetez <julienr@svn.gnome.org>
// Copyright (C) 2007-2009 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2007-2009 Carlos Garcia Campos <carlosgc@gnome.org>
// Copyright (C) 2007, 2008 Iñigo Martínez <inigomartinez@gmail.com>
// Copyright (C) 2007 Jeff Muizelaar <jeff@infidigm.net>
// Copyright (C) 2008 Pino Toscano <pino@kde.org>
// Copyright (C) 2008 Michael Vrable <mvrable@cs.ucsd.edu>
// Copyright (C) 2008 Hugo Mercier <hmercier31@gmail.com>
// Copyright (C) 2009 Ilya Gorenbein <igorenbein@finjan.com>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#include <config.h>
#ifdef USE_GCC_PRAGMAS
#pragma implementation
#endif
#include <stdlib.h>
#include <math.h>
#include <assert.h>
#include "goo/gmem.h"
#include "goo/gstrtod.h"
#include "GooList.h"
#include "Error.h"
#include "Object.h"
#include "Catalog.h"
#include "Gfx.h"
#include "Lexer.h"
#include "Annot.h"
#include "GfxFont.h"
#include "CharCodeToUnicode.h"
#include "PDFDocEncoding.h"
#include "Form.h"
#include "Error.h"
#include "Page.h"
#include "XRef.h"
#include "Movie.h"
#include "OptionalContent.h"
#include "Sound.h"
#include "FileSpec.h"
#include "DateInfo.h"
#include <string.h>
#define annotFlagHidden 0x0002
#define annotFlagPrint 0x0004
#define annotFlagNoView 0x0020
#define fieldFlagReadOnly 0x00000001
#define fieldFlagRequired 0x00000002
#define fieldFlagNoExport 0x00000004
#define fieldFlagMultiline 0x00001000
#define fieldFlagPassword 0x00002000
#define fieldFlagNoToggleToOff 0x00004000
#define fieldFlagRadio 0x00008000
#define fieldFlagPushbutton 0x00010000
#define fieldFlagCombo 0x00020000
#define fieldFlagEdit 0x00040000
#define fieldFlagSort 0x00080000
#define fieldFlagFileSelect 0x00100000
#define fieldFlagMultiSelect 0x00200000
#define fieldFlagDoNotSpellCheck 0x00400000
#define fieldFlagDoNotScroll 0x00800000
#define fieldFlagComb 0x01000000
#define fieldFlagRichText 0x02000000
#define fieldFlagRadiosInUnison 0x02000000
#define fieldFlagCommitOnSelChange 0x04000000
#define fieldQuadLeft 0
#define fieldQuadCenter 1
#define fieldQuadRight 2
// distance of Bezier control point from center for circle approximation
// = (4 * (sqrt(2) - 1) / 3) * r
#define bezierCircle 0.55228475
AnnotLineEndingStyle parseAnnotLineEndingStyle(GooString *string) {
if (string != NULL) {
if (!string->cmp("Square")) {
return annotLineEndingSquare;
} else if (!string->cmp("Circle")) {
return annotLineEndingCircle;
} else if (!string->cmp("Diamond")) {
return annotLineEndingDiamond;
} else if (!string->cmp("OpenArrow")) {
return annotLineEndingOpenArrow;
} else if (!string->cmp("ClosedArrow")) {
return annotLineEndingClosedArrow;
} else if (!string->cmp("Butt")) {
return annotLineEndingButt;
} else if (!string->cmp("ROpenArrow")) {
return annotLineEndingROpenArrow;
} else if (!string->cmp("RClosedArrow")) {
return annotLineEndingRClosedArrow;
} else if (!string->cmp("Slash")) {
return annotLineEndingSlash;
} else {
return annotLineEndingNone;
}
} else {
return annotLineEndingNone;
}
}
static AnnotExternalDataType parseAnnotExternalData(Dict* dict) {
Object obj1;
AnnotExternalDataType type;
if (dict->lookup("Subtype", &obj1)->isName()) {
GooString *typeName = new GooString(obj1.getName());
if (!typeName->cmp("Markup3D")) {
type = annotExternalDataMarkup3D;
} else {
type = annotExternalDataMarkupUnknown;
}
delete typeName;
} else {
type = annotExternalDataMarkupUnknown;
}
obj1.free();
return type;
}
PDFRectangle *parseDiffRectangle(Array *array, PDFRectangle *rect) {
PDFRectangle *newRect = NULL;
if (array->getLength() == 4) {
// deltas
Object obj1;
double dx1 = (array->get(0, &obj1)->isNum() ? obj1.getNum() : 0);
obj1.free();
double dy1 = (array->get(1, &obj1)->isNum() ? obj1.getNum() : 0);
obj1.free();
double dx2 = (array->get(2, &obj1)->isNum() ? obj1.getNum() : 0);
obj1.free();
double dy2 = (array->get(3, &obj1)->isNum() ? obj1.getNum() : 0);
obj1.free();
// checking that the numbers are valid (i.e. >= 0),
// and that applying the differences still give us a valid rect
if (dx1 >= 0 && dy1 >= 0 && dx2 >= 0 && dy2
&& (rect->x2 - rect->x1 - dx1 - dx2) >= 0
&& (rect->y2 - rect->y1 - dy1 - dy2) >= 0) {
newRect = new PDFRectangle();
newRect->x1 = rect->x1 + dx1;
newRect->y1 = rect->y1 + dy1;
newRect->x2 = rect->x2 - dx2;
newRect->y2 = rect->y2 - dy2;
}
}
return newRect;
}
//------------------------------------------------------------------------
// AnnotBorderEffect
//------------------------------------------------------------------------
AnnotBorderEffect::AnnotBorderEffect(Dict *dict) {
Object obj1;
if (dict->lookup("S", &obj1)->isName()) {
GooString *effectName = new GooString(obj1.getName());
if (!effectName->cmp("C"))
effectType = borderEffectCloudy;
else
effectType = borderEffectNoEffect;
delete effectName;
} else {
effectType = borderEffectNoEffect;
}
obj1.free();
if ((dict->lookup("I", &obj1)->isNum()) && effectType == borderEffectCloudy) {
intensity = obj1.getNum();
} else {
intensity = 0;
}
obj1.free();
}
//------------------------------------------------------------------------
// AnnotPath
//------------------------------------------------------------------------
AnnotPath::AnnotPath() {
coords = NULL;
coordsLength = 0;
}
AnnotPath::AnnotPath(Array *array) {
coords = NULL;
coordsLength = 0;
parsePathArray(array);
}
AnnotPath::AnnotPath(AnnotCoord **coords, int coordsLength) {
this->coords = coords;
this->coordsLength = coordsLength;
}
AnnotPath::~AnnotPath() {
if (coords) {
for (int i = 0; i < coordsLength; ++i)
delete coords[i];
gfree(coords);
}
}
double AnnotPath::getX(int coord) const {
if (coord >= 0 && coord < coordsLength)
return coords[coord]->getX();
return 0;
}
double AnnotPath::getY(int coord) const {
if (coord >= 0 && coord < coordsLength)
return coords[coord]->getY();
return 0;
}
AnnotCoord *AnnotPath::getCoord(int coord) const {
if (coord >= 0 && coord < coordsLength)
return coords[coord];
return NULL;
}
void AnnotPath::parsePathArray(Array *array) {
int tempLength;
AnnotCoord **tempCoords;
GBool correct = gTrue;
if (array->getLength() % 2) {
error(-1, "Bad Annot Path");
return;
}
tempLength = array->getLength() / 2;
tempCoords = (AnnotCoord **) gmallocn (tempLength, sizeof(AnnotCoord *));
memset(tempCoords, 0, tempLength * sizeof(AnnotCoord *));
for (int i = 0; i < tempLength && correct; i++) {
Object obj1;
double x = 0, y = 0;
if (array->get(i * 2, &obj1)->isNum()) {
x = obj1.getNum();
} else {
correct = gFalse;
}
obj1.free();
if (array->get((i * 2) + 1, &obj1)->isNum()) {
y = obj1.getNum();
} else {
correct = gFalse;
}
obj1.free();
if (!correct) {
for (int j = i - 1; j >= 0; j--)
delete tempCoords[j];
gfree (tempCoords);
return;
}
tempCoords[i] = new AnnotCoord(x, y);
}
coords = tempCoords;
coordsLength = tempLength;
}
//------------------------------------------------------------------------
// AnnotCalloutLine
//------------------------------------------------------------------------
AnnotCalloutLine::AnnotCalloutLine(double x1, double y1, double x2, double y2)
: coord1(x1, y1), coord2(x2, y2) {
}
//------------------------------------------------------------------------
// AnnotCalloutMultiLine
//------------------------------------------------------------------------
AnnotCalloutMultiLine::AnnotCalloutMultiLine(double x1, double y1, double x2,
double y2, double x3, double y3)
: AnnotCalloutLine(x1, y1, x2, y2), coord3(x3, y3) {
}
//------------------------------------------------------------------------
// AnnotQuadrilateral
//------------------------------------------------------------------------
AnnotQuadrilaterals::AnnotQuadrilaterals(Array *array, PDFRectangle *rect) {
int arrayLength = array->getLength();
GBool correct = gTrue;
int quadsLength = 0;
AnnotQuadrilateral **quads;
double quadArray[8];
// default values
quadrilaterals = NULL;
quadrilateralsLength = 0;
if ((arrayLength % 8) == 0) {
int i = 0;
quadsLength = arrayLength / 8;
quads = (AnnotQuadrilateral **) gmallocn
((quadsLength), sizeof(AnnotQuadrilateral *));
memset(quads, 0, quadsLength * sizeof(AnnotQuadrilateral *));
while (i < (quadsLength) && correct) {
for (int j = 0; j < 8 && correct; j++) {
Object obj;
if (array->get(i * 8 + j, &obj)->isNum()) {
quadArray[j] = obj.getNum();
if (j % 2 == 1) {
if (quadArray[j] < rect->y1 || quadArray[j] > rect->y2)
correct = gFalse;
} else {
if (quadArray[j] < rect->x1 || quadArray[j] > rect->x2)
correct = gFalse;
}
} else {
correct = gFalse;
}
obj.free();
}
if (correct)
quads[i] = new AnnotQuadrilateral(quadArray[0], quadArray[1],
quadArray[2], quadArray[3],
quadArray[4], quadArray[5],
quadArray[6], quadArray[7]);
i++;
}
if (correct) {
quadrilateralsLength = quadsLength;
quadrilaterals = quads;
} else {
for (int j = 0; j < i; j++)
delete quads[j];
gfree (quads);
}
}
}
AnnotQuadrilaterals::~AnnotQuadrilaterals() {
if (quadrilaterals) {
for(int i = 0; i < quadrilateralsLength; i++)
delete quadrilaterals[i];
gfree (quadrilaterals);
}
}
double AnnotQuadrilaterals::getX1(int quadrilateral) {
if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength)
return quadrilaterals[quadrilateral]->coord1.getX();
return 0;
}
double AnnotQuadrilaterals::getY1(int quadrilateral) {
if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength)
return quadrilaterals[quadrilateral]->coord1.getY();
return 0;
}
double AnnotQuadrilaterals::getX2(int quadrilateral) {
if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength)
return quadrilaterals[quadrilateral]->coord2.getX();
return 0;
}
double AnnotQuadrilaterals::getY2(int quadrilateral) {
if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength)
return quadrilaterals[quadrilateral]->coord2.getY();
return 0;
}
double AnnotQuadrilaterals::getX3(int quadrilateral) {
if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength)
return quadrilaterals[quadrilateral]->coord3.getX();
return 0;
}
double AnnotQuadrilaterals::getY3(int quadrilateral) {
if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength)
return quadrilaterals[quadrilateral]->coord3.getY();
return 0;
}
double AnnotQuadrilaterals::getX4(int quadrilateral) {
if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength)
return quadrilaterals[quadrilateral]->coord4.getX();
return 0;
}
double AnnotQuadrilaterals::getY4(int quadrilateral) {
if (quadrilateral >= 0 && quadrilateral < quadrilateralsLength)
return quadrilaterals[quadrilateral]->coord4.getY();
return 0;
}
AnnotQuadrilaterals::AnnotQuadrilateral::AnnotQuadrilateral(double x1, double y1,
double x2, double y2, double x3, double y3, double x4, double y4)
: coord1(x1, y1), coord2(x2, y2), coord3(x3, y3), coord4(x4, y4) {
}
//------------------------------------------------------------------------
// AnnotBorder
//------------------------------------------------------------------------
AnnotBorder::AnnotBorder() {
type = typeUnknown;
width = 1;
dashLength = 0;
dash = NULL;
style = borderSolid;
}
AnnotBorder::~AnnotBorder() {
if (dash)
gfree (dash);
}
//------------------------------------------------------------------------
// AnnotBorderArray
//------------------------------------------------------------------------
AnnotBorderArray::AnnotBorderArray() {
type = typeArray;
horizontalCorner = 0;
verticalCorner = 0;
}
AnnotBorderArray::AnnotBorderArray(Array *array) {
Object obj1;
int arrayLength = array->getLength();
GBool correct = gTrue;
if (arrayLength == 3 || arrayLength == 4) {
// implementation note 81 in Appendix H.
if (array->get(0, &obj1)->isNum())
horizontalCorner = obj1.getNum();
else
correct = gFalse;
obj1.free();
if (array->get(1, &obj1)->isNum())
verticalCorner = obj1.getNum();
else
correct = gFalse;
obj1.free();
if (array->get(2, &obj1)->isNum())
width = obj1.getNum();
else
correct = gFalse;
obj1.free();
// TODO: check not all zero ? (Line Dash Pattern Page 217 PDF 8.1)
if (arrayLength == 4) {
if (array->get(3, &obj1)->isArray()) {
Array *dashPattern = obj1.getArray();
int tempLength = dashPattern->getLength();
double *tempDash = (double *) gmallocn (tempLength, sizeof (double));
for(int i = 0; i < tempLength && i < DASH_LIMIT && correct; i++) {
if (dashPattern->get(i, &obj1)->isNum()) {
tempDash[i] = obj1.getNum();
if (tempDash[i] < 0)
correct = gFalse;
} else {
correct = gFalse;
}
obj1.free();
}
if (correct) {
dashLength = tempLength;
dash = tempDash;
style = borderDashed;
} else {
gfree (tempDash);
}
} else {
correct = gFalse;
}
obj1.free();
}
} else {
correct = gFalse;
}
if (!correct) {
width = 0;
}
}
//------------------------------------------------------------------------
// AnnotBorderBS
//------------------------------------------------------------------------
AnnotBorderBS::AnnotBorderBS() {
type = typeBS;
}
AnnotBorderBS::AnnotBorderBS(Dict *dict) {
Object obj1, obj2;
// acroread 8 seems to need both W and S entries for
// any border to be drawn, even though the spec
// doesn't claim anything of that sort. We follow
// that behaviour by veryifying both entries exist
// otherwise we set the borderWidth to 0
// --jrmuizel
dict->lookup("W", &obj1);
dict->lookup("S", &obj2);
if (obj1.isNum() && obj2.isName()) {
GooString *styleName = new GooString(obj2.getName());
width = obj1.getNum();
if (!styleName->cmp("S")) {
style = borderSolid;
} else if (!styleName->cmp("D")) {
style = borderDashed;
} else if (!styleName->cmp("B")) {
style = borderBeveled;
} else if (!styleName->cmp("I")) {
style = borderInset;
} else if (!styleName->cmp("U")) {
style = borderUnderlined;
} else {
style = borderSolid;
}
delete styleName;
} else {
width = 0;
}
obj2.free();
obj1.free();
// TODO: check not all zero (Line Dash Pattern Page 217 PDF 8.1)
if (dict->lookup("D", &obj1)->isArray()) {
GBool correct = gTrue;
int tempLength = obj1.arrayGetLength();
double *tempDash = (double *) gmallocn (tempLength, sizeof (double));
for(int i = 0; i < tempLength && correct; i++) {
Object obj2;
if (obj1.arrayGet(i, &obj2)->isNum()) {
tempDash[i] = obj2.getNum();
if (tempDash[i] < 0)
correct = gFalse;
} else {
correct = gFalse;
}
obj2.free();
}
if (correct) {
dashLength = tempLength;
dash = tempDash;
style = borderDashed;
} else {
gfree (tempDash);
}
}
if (!dash) {
dashLength = 1;
dash = (double *) gmallocn (dashLength, sizeof (double));
dash[0] = 3;
}
obj1.free();
}
//------------------------------------------------------------------------
// AnnotColor
//------------------------------------------------------------------------
AnnotColor::AnnotColor() {
length = 0;
values = NULL;
}
AnnotColor::AnnotColor(double gray) {
length = 1;
values = (double *) gmallocn (length, sizeof(double));
values[0] = gray;
}
AnnotColor::AnnotColor(double r, double g, double b) {
length = 3;
values = (double *) gmallocn (length, sizeof(double));
values[0] = r;
values[1] = g;
values[2] = b;
}
AnnotColor::AnnotColor(double c, double m, double y, double k) {
length = 4;
values = (double *) gmallocn (length, sizeof(double));
values[0] = c;
values[1] = m;
values[2] = y;
values[3] = k;
}
AnnotColor::AnnotColor(Array *array) {
// TODO: check what Acrobat does in the case of having more than 5 numbers.
if (array->getLength() < 5) {
length = array->getLength();
values = (double *) gmallocn (length, sizeof(double));
for(int i = 0; i < length; i++) {
Object obj1;
if (array->get(i, &obj1)->isNum()) {
values[i] = obj1.getNum();
if (values[i] < 0 || values[i] > 1)
values[i] = 0;
} else {
values[i] = 0;
}
obj1.free();
}
} else {
values = NULL;
length = 0;
}
}
AnnotColor::~AnnotColor() {
if (values)
gfree (values);
}
//------------------------------------------------------------------------
// AnnotBorderStyle
//------------------------------------------------------------------------
AnnotBorderStyle::AnnotBorderStyle(AnnotBorderType typeA, double widthA,
double *dashA, int dashLengthA,
double rA, double gA, double bA) {
type = typeA;
width = widthA;
dash = dashA;
dashLength = dashLengthA;
r = rA;
g = gA;
b = bA;
}
AnnotBorderStyle::~AnnotBorderStyle() {
if (dash) {
gfree(dash);
}
}
//------------------------------------------------------------------------
// AnnotIconFit
//------------------------------------------------------------------------
AnnotIconFit::AnnotIconFit(Dict* dict) {
Object obj1;
if (dict->lookup("SW", &obj1)->isName()) {
GooString *scaleName = new GooString(obj1.getName());
if(!scaleName->cmp("B")) {
scaleWhen = scaleBigger;
} else if(!scaleName->cmp("S")) {
scaleWhen = scaleSmaller;
} else if(!scaleName->cmp("N")) {
scaleWhen = scaleNever;
} else {
scaleWhen = scaleAlways;
}
delete scaleName;
} else {
scaleWhen = scaleAlways;
}
obj1.free();
if (dict->lookup("S", &obj1)->isName()) {
GooString *scaleName = new GooString(obj1.getName());
if(!scaleName->cmp("A")) {
scale = scaleAnamorphic;
} else {
scale = scaleProportional;
}
delete scaleName;
} else {
scale = scaleProportional;
}
obj1.free();
if (dict->lookup("A", &obj1)->isArray() && obj1.arrayGetLength() == 2) {
Object obj2;
(obj1.arrayGet(0, &obj2)->isNum() ? left = obj2.getNum() : left = 0);
obj2.free();
(obj1.arrayGet(1, &obj2)->isNum() ? bottom = obj2.getNum() : bottom = 0);
obj2.free();
if (left < 0 || left > 1)
left = 0.5;
if (bottom < 0 || bottom > 1)
bottom = 0.5;
} else {
left = bottom = 0.5;
}
obj1.free();
if (dict->lookup("FB", &obj1)->isBool()) {
fullyBounds = obj1.getBool();
} else {
fullyBounds = gFalse;
}
obj1.free();
}
//------------------------------------------------------------------------
// AnnotAppearanceCharacs
//------------------------------------------------------------------------
AnnotAppearanceCharacs::AnnotAppearanceCharacs(Dict *dict) {
Object obj1;
if (dict->lookup("R", &obj1)->isInt()) {
rotation = obj1.getInt();
} else {
rotation = 0;
}
obj1.free();
if (dict->lookup("BC", &obj1)->isArray()) {
borderColor = new AnnotColor(obj1.getArray());
} else {
borderColor = NULL;
}
obj1.free();
if (dict->lookup("BG", &obj1)->isArray()) {
backColor = new AnnotColor(obj1.getArray());
} else {
backColor = NULL;
}
obj1.free();
if (dict->lookup("CA", &obj1)->isName()) {
normalCaption = new GooString(obj1.getName());
} else {
normalCaption = NULL;
}
obj1.free();
if (dict->lookup("RC", &obj1)->isName()) {
rolloverCaption = new GooString(obj1.getName());
} else {
rolloverCaption = NULL;
}
obj1.free();
if (dict->lookup("AC", &obj1)->isName()) {
alternateCaption = new GooString(obj1.getName());
} else {
alternateCaption = NULL;
}
obj1.free();
if (dict->lookup("IF", &obj1)->isDict()) {
iconFit = new AnnotIconFit(obj1.getDict());
} else {
iconFit = NULL;
}
obj1.free();
if (dict->lookup("TP", &obj1)->isInt()) {
position = (AnnotAppearanceCharacsTextPos) obj1.getInt();
} else {
position = captionNoIcon;
}
obj1.free();
}
AnnotAppearanceCharacs::~AnnotAppearanceCharacs() {
if (borderColor)
delete borderColor;
if (backColor)
delete backColor;
if (normalCaption)
delete normalCaption;
if (rolloverCaption)
delete rolloverCaption;
if (alternateCaption)
delete alternateCaption;
if (iconFit)
delete iconFit;
}
//------------------------------------------------------------------------
// Annot
//------------------------------------------------------------------------
Annot::Annot(XRef *xrefA, PDFRectangle *rectA, Catalog *catalog) {
Object obj1;
flags = flagUnknown;
type = typeUnknown;
obj1.initArray (xrefA);
Object obj2;
obj1.arrayAdd (obj2.initReal (rectA->x1));
obj1.arrayAdd (obj2.initReal (rectA->y1));
obj1.arrayAdd (obj2.initReal (rectA->x2));
obj1.arrayAdd (obj2.initReal (rectA->y2));
obj2.free ();
annotObj.initDict (xrefA);
annotObj.dictSet ("Type", obj2.initName ("Annot"));
annotObj.dictSet ("Rect", &obj1);
// obj1 is owned by the dict
ref = xrefA->addIndirectObject (&annotObj);
initialize (xrefA, annotObj.getDict(), catalog);
}
Annot::Annot(XRef *xrefA, Dict *dict, Catalog* catalog) {
hasRef = false;
flags = flagUnknown;
type = typeUnknown;
annotObj.initDict (dict);
initialize (xrefA, dict, catalog);
}
Annot::Annot(XRef *xrefA, Dict *dict, Catalog* catalog, Object *obj) {
if (obj->isRef()) {
hasRef = gTrue;
ref = obj->getRef();
} else {
hasRef = gFalse;
}
flags = flagUnknown;
type = typeUnknown;
annotObj.initDict (dict);
initialize (xrefA, dict, catalog);
}
void Annot::initialize(XRef *xrefA, Dict *dict, Catalog *catalog) {
Object asObj, obj1, obj2, obj3;
appRef.num = 0;
appRef.gen = 65535;
ok = gTrue;
xref = xrefA;
appearBuf = NULL;
fontSize = 0;
//----- parse the rectangle
rect = new PDFRectangle();
if (dict->lookup("Rect", &obj1)->isArray() && obj1.arrayGetLength() == 4) {
Object obj2;
(obj1.arrayGet(0, &obj2)->isNum() ? rect->x1 = obj2.getNum() : rect->x1 = 0);
obj2.free();
(obj1.arrayGet(1, &obj2)->isNum() ? rect->y1 = obj2.getNum() : rect->y1 = 0);
obj2.free();
(obj1.arrayGet(2, &obj2)->isNum() ? rect->x2 = obj2.getNum() : rect->x2 = 1);
obj2.free();
(obj1.arrayGet(3, &obj2)->isNum() ? rect->y2 = obj2.getNum() : rect->y2 = 1);
obj2.free();
if (rect->x1 > rect->x2) {
double t = rect->x1;
rect->x1 = rect->x2;
rect->x2 = t;
}
if (rect->y1 > rect->y2) {
double t = rect->y1;
rect->y1 = rect->y2;
rect->y2 = t;
}
} else {
rect->x1 = rect->y1 = 0;
rect->x2 = rect->y2 = 1;
error(-1, "Bad bounding box for annotation");
ok = gFalse;
}
obj1.free();
if (dict->lookup("Contents", &obj1)->isString()) {
contents = obj1.getString()->copy();
} else {
contents = NULL;
}
obj1.free();
/* TODO: Page Object indirect reference (should be parsed ?) */
pageDict = NULL;
/*if (dict->lookup("P", &obj1)->isDict()) {
pageDict = NULL;
} else {
pageDict = NULL;
}
obj1.free();
*/
if (dict->lookup("NM", &obj1)->isString()) {
name = obj1.getString()->copy();
} else {
name = NULL;
}
obj1.free();
if (dict->lookup("M", &obj1)->isString()) {
modified = obj1.getString()->copy();
} else {
modified = NULL;
}
obj1.free();
//----- get the flags
if (dict->lookup("F", &obj1)->isInt()) {
flags |= obj1.getInt();
} else {
flags = flagUnknown;
}
obj1.free();
if (dict->lookup("AP", &obj1)->isDict()) {
Object obj2;
if (dict->lookup("AS", &obj2)->isName()) {
Object obj3;
appearState = new GooString(obj2.getName());
if (obj1.dictLookup("N", &obj3)->isDict()) {
Object obj4;
if (obj3.dictLookupNF(appearState->getCString(), &obj4)->isRef()) {
obj4.copy(&appearance);
} else {
obj4.free();
if (obj3.dictLookupNF("Off", &obj4)->isRef()) {
obj4.copy(&appearance);
}
}
obj4.free();
}
obj3.free();
} else {
obj2.free();
appearState = NULL;
if (obj1.dictLookupNF("N", &obj2)->isRef()) {
obj2.copy(&appearance);
}
}
obj2.free();
} else {
appearState = NULL;
}
obj1.free();
//----- parse the border style
if (dict->lookup("BS", &obj1)->isDict()) {
border = new AnnotBorderBS(obj1.getDict());
} else {
obj1.free();
if (dict->lookup("Border", &obj1)->isArray())
border = new AnnotBorderArray(obj1.getArray());
else
// Adobe draws no border at all if the last element is of
// the wrong type.
border = NULL;
}
obj1.free();
if (dict->lookup("C", &obj1)->isArray()) {
color = new AnnotColor(obj1.getArray());
} else {
color = NULL;
}
obj1.free();
if (dict->lookup("StructParent", &obj1)->isInt()) {
treeKey = obj1.getInt();
} else {
treeKey = 0;
}
obj1.free();
optContentConfig = catalog ? catalog->getOptContentConfig() : NULL;
dict->lookupNF("OC", &oc);
if (!oc.isRef() && !oc.isNull()) {
error (-1, "Annotation OC value not null or dict: %i", oc.getType());
}
}
void Annot::update(const char *key, Object *value) {
/* Set M to current time */
delete modified;
modified = timeToDateString(NULL);
Object obj1;
obj1.initString (modified->copy());
annotObj.dictSet("M", &obj1);
annotObj.dictSet(const_cast<char*>(key), value);
xref->setModifiedObject(&annotObj, ref);
}
void Annot::setContents(GooString *new_content) {
delete contents;
if (new_content) {
contents = new GooString(new_content);
//append the unicode marker <FE FF> if needed
if (!contents->hasUnicodeMarker()) {
contents->insert(0, 0xff);
contents->insert(0, 0xfe);
}
} else {
contents = new GooString();
}
Object obj1;
obj1.initString(contents->copy());
update ("Contents", &obj1);
}
void Annot::setColor(AnnotColor *new_color) {
delete color;
if (new_color) {
Object obj1, obj2;
double *values = new_color->getValues();
obj1.initArray(xref);
for (int i = 0; i < (int)new_color->getSpace(); i++)
obj1.arrayAdd(obj2.initReal (values[i]));
update ("C", &obj1);
color = new_color;
} else {
color = NULL;
}
}
double Annot::getXMin() {
return rect->x1;
}
double Annot::getYMin() {
return rect->y1;
}
void Annot::readArrayNum(Object *pdfArray, int key, double *value) {
Object valueObject;
pdfArray->arrayGet(key, &valueObject);
if (valueObject.isNum()) {
*value = valueObject.getNum();
} else {
*value = 0;
ok = gFalse;
}
valueObject.free();
}
Annot::~Annot() {
annotObj.free();
delete rect;
if (contents)
delete contents;
if (pageDict)
delete pageDict;
if (name)
delete name;
if (modified)
delete modified;
appearance.free();
if (appearState)
delete appearState;
if (border)
delete border;
if (color)
delete color;
oc.free();
}
// Set the current fill or stroke color, based on <a> (which should
// have 1, 3, or 4 elements). If <adjust> is +1, color is brightened;
// if <adjust> is -1, color is darkened; otherwise color is not
// modified.
void Annot::setColor(Array *a, GBool fill, int adjust) {
Object obj1;
double color[4];
int nComps, i;
nComps = a->getLength();
if (nComps > 4) {
nComps = 4;
}
for (i = 0; i < nComps && i < 4; ++i) {
if (a->get(i, &obj1)->isNum()) {
color[i] = obj1.getNum();
} else {
color[i] = 0;
}
obj1.free();
}
if (nComps == 4) {
adjust = -adjust;
}
if (adjust > 0) {
for (i = 0; i < nComps; ++i) {
color[i] = 0.5 * color[i] + 0.5;
}
} else if (adjust < 0) {
for (i = 0; i < nComps; ++i) {
color[i] = 0.5 * color[i];
}
}
if (nComps == 4) {
appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:c}\n",
color[0], color[1], color[2], color[3],
fill ? 'k' : 'K');
} else if (nComps == 3) {
appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:s}\n",
color[0], color[1], color[2],
fill ? "rg" : "RG");
} else {
appearBuf->appendf("{0:.2f} {1:c}\n",
color[0],
fill ? 'g' : 'G');
}
}
// Draw an (approximate) circle of radius <r> centered at (<cx>, <cy>).
// If <fill> is true, the circle is filled; otherwise it is stroked.
void Annot::drawCircle(double cx, double cy, double r, GBool fill) {
appearBuf->appendf("{0:.2f} {1:.2f} m\n",
cx + r, cy);
appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n",
cx + r, cy + bezierCircle * r,
cx + bezierCircle * r, cy + r,
cx, cy + r);
appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n",
cx - bezierCircle * r, cy + r,
cx - r, cy + bezierCircle * r,
cx - r, cy);
appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n",
cx - r, cy - bezierCircle * r,
cx - bezierCircle * r, cy - r,
cx, cy - r);
appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n",
cx + bezierCircle * r, cy - r,
cx + r, cy - bezierCircle * r,
cx + r, cy);
appearBuf->append(fill ? "f\n" : "s\n");
}
// Draw the top-left half of an (approximate) circle of radius <r>
// centered at (<cx>, <cy>).
void Annot::drawCircleTopLeft(double cx, double cy, double r) {
double r2;
r2 = r / sqrt(2.0);
appearBuf->appendf("{0:.2f} {1:.2f} m\n",
cx + r2, cy + r2);
appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n",
cx + (1 - bezierCircle) * r2,
cy + (1 + bezierCircle) * r2,
cx - (1 - bezierCircle) * r2,
cy + (1 + bezierCircle) * r2,
cx - r2,
cy + r2);
appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n",
cx - (1 + bezierCircle) * r2,
cy + (1 - bezierCircle) * r2,
cx - (1 + bezierCircle) * r2,
cy - (1 - bezierCircle) * r2,
cx - r2,
cy - r2);
appearBuf->append("S\n");
}
// Draw the bottom-right half of an (approximate) circle of radius <r>
// centered at (<cx>, <cy>).
void Annot::drawCircleBottomRight(double cx, double cy, double r) {
double r2;
r2 = r / sqrt(2.0);
appearBuf->appendf("{0:.2f} {1:.2f} m\n",
cx - r2, cy - r2);
appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n",
cx - (1 - bezierCircle) * r2,
cy - (1 + bezierCircle) * r2,
cx + (1 - bezierCircle) * r2,
cy - (1 + bezierCircle) * r2,
cx + r2,
cy - r2);
appearBuf->appendf("{0:.2f} {1:.2f} {2:.2f} {3:.2f} {4:.2f} {5:.2f} c\n",
cx + (1 + bezierCircle) * r2,
cy - (1 - bezierCircle) * r2,
cx + (1 + bezierCircle) * r2,
cy + (1 - bezierCircle) * r2,
cx + r2,
cy + r2);
appearBuf->append("S\n");
}
void Annot::draw(Gfx *gfx, GBool printing) {
Object obj;
// check the flags
if ((flags & annotFlagHidden) ||
(printing && !(flags & annotFlagPrint)) ||
(!printing && (flags & annotFlagNoView))) {
return;
}
// check the OC
if (optContentConfig && oc.isRef()) {
if (! optContentConfig->optContentIsVisible(&oc))
return;
}
// draw the appearance stream
appearance.fetch(xref, &obj);
gfx->drawAnnot(&obj, (type == typeLink) ? border : (AnnotBorder *)NULL, color,
rect->x1, rect->y1, rect->x2, rect->y2);
obj.free();
}
//------------------------------------------------------------------------
// AnnotPopup
//------------------------------------------------------------------------
AnnotPopup::AnnotPopup(XRef *xrefA, PDFRectangle *rect, Catalog *catalog) :
Annot(xrefA, rect, catalog) {
Object obj1;
type = typePopup;
annotObj.dictSet ("Subtype", obj1.initName ("Popup"));
initialize (xrefA, annotObj.getDict(), catalog);
}
AnnotPopup::AnnotPopup(XRef *xrefA, Dict *dict, Catalog *catalog, Object *obj) :
Annot(xrefA, dict, catalog, obj) {
type = typePopup;
initialize(xrefA, dict, catalog);
}
AnnotPopup::~AnnotPopup() {
parent.free();
}
void AnnotPopup::initialize(XRef *xrefA, Dict *dict, Catalog *catalog) {
Object obj1;
if (!dict->lookupNF("Parent", &parent)->isRef()) {
parent.initNull();
}
if (dict->lookup("Open", &obj1)->isBool()) {
open = obj1.getBool();
} else {
open = gFalse;
}
obj1.free();
}
void AnnotPopup::setParent(Object *parentA) {
parentA->copy(&parent);
update ("Parent", &parent);
}
void AnnotPopup::setParent(Annot *parentA) {
Ref parentRef = parentA->getRef();
parent.initRef(parentRef.num, parentRef.gen);
update ("Parent", &parent);
}
void AnnotPopup::setOpen(GBool openA) {
Object obj1;
open = openA;
obj1.initBool(open);
update ("Open", &obj1);
}
//------------------------------------------------------------------------
// AnnotMarkup
//------------------------------------------------------------------------
AnnotMarkup::AnnotMarkup(XRef *xrefA, PDFRectangle *rect, Catalog *catalog) :
Annot(xrefA, rect, catalog) {
initialize(xrefA, annotObj.getDict(), catalog, &annotObj);
}
AnnotMarkup::AnnotMarkup(XRef *xrefA, Dict *dict, Catalog *catalog, Object *obj) :
Annot(xrefA, dict, catalog, obj) {
initialize(xrefA, dict, catalog, obj);
}
AnnotMarkup::~AnnotMarkup() {
if (label)
delete label;
if (popup)
delete popup;
if (date)
delete date;
if (subject)
delete subject;
}
void AnnotMarkup::initialize(XRef *xrefA, Dict *dict, Catalog *catalog, Object *obj) {
Object obj1;
if (dict->lookup("T", &obj1)->isString()) {
label = obj1.getString()->copy();
} else {
label = NULL;
}
obj1.free();
if (dict->lookup("Popup", &obj1)->isDict()) {
popup = new AnnotPopup(xrefA, obj1.getDict(), catalog, obj);
} else {
popup = NULL;
}
obj1.free();
if (dict->lookup("CA", &obj1)->isNum()) {
opacity = obj1.getNum();
} else {
opacity = 1.0;
}
obj1.free();
if (dict->lookup("CreationDate", &obj1)->isString()) {
date = obj1.getString()->copy();
} else {
date = NULL;
}
obj1.free();
if (dict->lookupNF("IRT", &obj1)->isRef()) {
inReplyTo = obj1.getRef();
} else {
inReplyTo.num = 0;
inReplyTo.gen = 0;
}
obj1.free();
if (dict->lookup("Subj", &obj1)->isString()) {
subject = obj1.getString()->copy();
} else {
subject = NULL;
}
obj1.free();
if (dict->lookup("RT", &obj1)->isName()) {
GooString *replyName = new GooString(obj1.getName());
if (!replyName->cmp("R")) {
replyTo = replyTypeR;
} else if (!replyName->cmp("Group")) {
replyTo = replyTypeGroup;
} else {
replyTo = replyTypeR;
}
delete replyName;
} else {
replyTo = replyTypeR;
}
obj1.free();
if (dict->lookup("ExData", &obj1)->isDict()) {
exData = parseAnnotExternalData(obj1.getDict());
} else {
exData = annotExternalDataMarkupUnknown;
}
obj1.free();
}
void AnnotMarkup::setLabel(GooString *new_label) {
delete label;
if (new_label) {
label = new GooString(new_label);
//append the unicode marker <FE FF> if needed
if (!label->hasUnicodeMarker()) {
label->insert(0, 0xff);
label->insert(0, 0xfe);
}
} else {
label = new GooString();
}
Object obj1;
obj1.initString(label->copy());
update ("T", &obj1);
}
void AnnotMarkup::setPopup(AnnotPopup *new_popup) {
delete popup;
if (new_popup) {
Object obj1;
Ref popupRef = new_popup->getRef();
obj1.initRef (popupRef.num, popupRef.gen);
update ("Popup", &obj1);
new_popup->setParent(this);
popup = new_popup;
} else {
popup = NULL;
}
}
//------------------------------------------------------------------------
// AnnotText
//------------------------------------------------------------------------
AnnotText::AnnotText(XRef *xrefA, PDFRectangle *rect, Catalog *catalog) :
AnnotMarkup(xrefA, rect, catalog) {
Object obj1;
type = typeText;
flags |= flagNoZoom | flagNoRotate;
annotObj.dictSet ("Subtype", obj1.initName ("Text"));
initialize (xrefA, catalog, annotObj.getDict());
}
AnnotText::AnnotText(XRef *xrefA, Dict *dict, Catalog *catalog, Object *obj) :
AnnotMarkup(xrefA, dict, catalog, obj) {
type = typeText;
flags |= flagNoZoom | flagNoRotate;
initialize (xrefA, catalog, dict);
}
AnnotText::~AnnotText() {
delete icon;
}
void AnnotText::initialize(XRef *xrefA, Catalog *catalog, Dict *dict) {
Object obj1;
if (dict->lookup("Open", &obj1)->isBool())
open = obj1.getBool();
else
open = gFalse;
obj1.free();
if (dict->lookup("Name", &obj1)->isName()) {
icon = new GooString(obj1.getName());
} else {
icon = new GooString("Note");
}
obj1.free();
if (dict->lookup("StateModel", &obj1)->isString()) {
Object obj2;
GooString *modelName = obj1.getString();
if (dict->lookup("State", &obj2)->isString()) {
GooString *stateName = obj2.getString();
if (!stateName->cmp("Marked")) {
state = stateMarked;
} else if (!stateName->cmp("Unmarked")) {
state = stateUnmarked;
} else if (!stateName->cmp("Accepted")) {
state = stateAccepted;
} else if (!stateName->cmp("Rejected")) {
state = stateRejected;
} else if (!stateName->cmp("Cancelled")) {
state = stateCancelled;
} else if (!stateName->cmp("Completed")) {
state = stateCompleted;
} else if (!stateName->cmp("None")) {
state = stateNone;
} else {
state = stateUnknown;
}
} else {
state = stateUnknown;
}
obj2.free();
if (!modelName->cmp("Marked")) {
switch (state) {
case stateUnknown:
state = stateMarked;
break;
case stateAccepted:
case stateRejected:
case stateCancelled:
case stateCompleted:
case stateNone:
state = stateUnknown;
break;
default:
break;
}
} else if (!modelName->cmp("Review")) {
switch (state) {
case stateUnknown:
state = stateNone;
break;
case stateMarked:
case stateUnmarked:
state = stateUnknown;
break;
default:
break;
}
} else {
state = stateUnknown;
}
} else {
state = stateUnknown;
}
obj1.free();
}
void AnnotText::setOpen(GBool openA) {
Object obj1;
open = openA;
obj1.initBool(open);
update ("Open", &obj1);
}
void AnnotText::setIcon(GooString *new_icon) {
if (new_icon && icon->cmp(new_icon) == 0)
return;
delete icon;
if (new_icon) {
icon = new GooString (new_icon);
} else {
icon = new GooString("Note");
}
Object obj1;
obj1.initName (icon->getCString());
update("Name", &obj1);
}
//------------------------------------------------------------------------
// AnnotLink
//------------------------------------------------------------------------
AnnotLink::AnnotLink(XRef *xrefA, PDFRectangle *rect, Catalog *catalog) :
Annot(xrefA, rect, catalog) {
Object obj1;
type = typeLink;
annotObj.dictSet ("Subtype", obj1.initName ("Link"));
initialize (xrefA, catalog, annotObj.getDict());
}
AnnotLink::AnnotLink(XRef *xrefA, Dict *dict, Catalog *catalog, Object *obj) :
Annot(xrefA, dict, catalog, obj) {
type = typeLink;
initialize (xrefA, catalog, dict);
}
AnnotLink::~AnnotLink() {
/*
if (actionDict)
delete actionDict;
*/
dest.free();
/*
if (uriAction)
delete uriAction;
*/
if (quadrilaterals)
delete quadrilaterals;
}
void AnnotLink::initialize(XRef *xrefA, Catalog *catalog, Dict *dict) {
Object obj1;
/*
if (dict->lookup("A", &obj1)->isDict()) {
actionDict = NULL;
} else {
actionDict = NULL;
}
obj1.free();
*/
dict->lookup("Dest", &dest);
if (dict->lookup("H", &obj1)->isName()) {
GooString *effect = new GooString(obj1.getName());
if (!effect->cmp("N")) {
linkEffect = effectNone;
} else if (!effect->cmp("I")) {
linkEffect = effectInvert;
} else if (!effect->cmp("O")) {
linkEffect = effectOutline;
} else if (!effect->cmp("P")) {
linkEffect = effectPush;
} else {
linkEffect = effectInvert;
}
delete effect;
} else {
linkEffect = effectInvert;
}
obj1.free();
/*
if (dict->lookup("PA", &obj1)->isDict()) {
uriAction = NULL;
} else {
uriAction = NULL;
}
obj1.free();
*/
if (dict->lookup("QuadPoints", &obj1)->isArray()) {
quadrilaterals = new AnnotQuadrilaterals(obj1.getArray(), rect);
} else {
quadrilaterals = NULL;
}
obj1.free();
}
void AnnotLink::draw(Gfx *gfx, GBool printing) {
Object obj;
// check the flags
if ((flags & annotFlagHidden) ||
(printing && !(flags & annotFlagPrint)) ||
(!printing && (flags & annotFlagNoView))) {
return;
}
// draw the appearance stream
appearance.fetch(xref, &obj);
gfx->drawAnnot(&obj, border, color,
rect->x1, rect->y1, rect->x2, rect->y2);
obj.free();
}
//------------------------------------------------------------------------
// AnnotFreeText
//------------------------------------------------------------------------
AnnotFreeText::AnnotFreeText(XRef *xrefA, PDFRectangle *rect, GooString *da, Catalog *catalog) :
AnnotMarkup(xrefA, rect, catalog) {
Object obj1;
type = typeFreeText;
annotObj.dictSet ("Subtype", obj1.initName ("FreeText"));
Object obj2;
obj2.initString (da->copy());
annotObj.dictSet("DA", &obj2);
initialize (xrefA, catalog, annotObj.getDict());
}
AnnotFreeText::AnnotFreeText(XRef *xrefA, Dict *dict, Catalog *catalog, Object *obj) :
AnnotMarkup(xrefA, dict, catalog, obj) {
type = typeFreeText;
initialize(xrefA, catalog, dict);
}
AnnotFreeText::~AnnotFreeText() {
delete appearanceString;
if (styleString)
delete styleString;
if (calloutLine)
delete calloutLine;
if (borderEffect)
delete borderEffect;
if (rectangle)
delete rectangle;
}
void AnnotFreeText::initialize(XRef *xrefA, Catalog *catalog, Dict *dict) {
Object obj1;
if (dict->lookup("DA", &obj1)->isString()) {
appearanceString = obj1.getString()->copy();
} else {
appearanceString = new GooString();
error(-1, "Bad appearance for annotation");
ok = gFalse;
}
obj1.free();
if (dict->lookup("Q", &obj1)->isInt()) {
quadding = (AnnotFreeTextQuadding) obj1.getInt();
} else {
quadding = quaddingLeftJustified;
}
obj1.free();
if (dict->lookup("DS", &obj1)->isString()) {
styleString = obj1.getString()->copy();
} else {
styleString = NULL;
}
obj1.free();
if (dict->lookup("CL", &obj1)->isArray() && obj1.arrayGetLength() >= 4) {
double x1, y1, x2, y2;
Object obj2;
(obj1.arrayGet(0, &obj2)->isNum() ? x1 = obj2.getNum() : x1 = 0);
obj2.free();
(obj1.arrayGet(1, &obj2)->isNum() ? y1 = obj2.getNum() : y1 = 0);
obj2.free();
(obj1.arrayGet(2, &obj2)->isNum() ? x2 = obj2.getNum() : x2 = 0);
obj2.free();
(obj1.arrayGet(3, &obj2)->isNum() ? y2 = obj2.getNum() : y2 = 0);
obj2.free();
if (obj1.arrayGetLength() == 6) {
double x3, y3;
(obj1.arrayGet(4, &obj2)->isNum() ? x3 = obj2.getNum() : x3 = 0);
obj2.free();
(obj1.arrayGet(5, &obj2)->isNum() ? y3 = obj2.getNum() : y3 = 0);
obj2.free();
calloutLine = new AnnotCalloutMultiLine(x1, y1, x2, y2, x3, y3);
} else {
calloutLine = new AnnotCalloutLine(x1, y1, x2, y2);
}
} else {
calloutLine = NULL;
}
obj1.free();
if (dict->lookup("IT", &obj1)->isName()) {
GooString *intentName = new GooString(obj1.getName());
if (!intentName->cmp("FreeText")) {
intent = intentFreeText;
} else if (!intentName->cmp("FreeTextCallout")) {
intent = intentFreeTextCallout;
} else if (!intentName->cmp("FreeTextTypeWriter")) {
intent = intentFreeTextTypeWriter;
} else {
intent = intentFreeText;
}
delete intentName;
} else {
intent = intentFreeText;
}
obj1.free();
if (dict->lookup("BE", &obj1)->isDict()) {
borderEffect = new AnnotBorderEffect(obj1.getDict());
} else {
borderEffect = NULL;
}
obj1.free();
if (dict->lookup("RD", &obj1)->isArray()) {
rectangle = parseDiffRectangle(obj1.getArray(), rect);
} else {
rectangle = NULL;
}
obj1.free();
if (dict->lookup("LE", &obj1)->isName()) {
GooString *styleName = new GooString(obj1.getName());
endStyle = parseAnnotLineEndingStyle(styleName);
delete styleName;
} else {
endStyle = annotLineEndingNone;
}
obj1.free();
}
//------------------------------------------------------------------------
// AnnotLine
//------------------------------------------------------------------------
AnnotLine::AnnotLine(XRef *xrefA, PDFRectangle *rect, PDFRectangle *lRect, Catalog *catalog) :
AnnotMarkup(xrefA, rect, catalog) {
Object obj1;
type = typeLine;
annotObj.dictSet ("Subtype", obj1.initName ("Line"));
Object obj2, obj3;
obj2.initArray (xrefA);
obj2.arrayAdd (obj3.initReal (lRect->x1));
obj2.arrayAdd (obj3.initReal (lRect->y1));
obj2.arrayAdd (obj3.initReal (lRect->x2));
obj2.arrayAdd (obj3.initReal (lRect->y2));
annotObj.dictSet ("L", &obj2);
initialize (xrefA, catalog, annotObj.getDict());
}
AnnotLine::AnnotLine(XRef *xrefA, Dict *dict, Catalog *catalog, Object *obj) :
AnnotMarkup(xrefA, dict, catalog, obj) {
type = typeLine;
initialize(xrefA, catalog, dict);
}
AnnotLine::~AnnotLine() {
delete coord1;
delete coord2;
if (interiorColor)
delete interiorColor;
if (measure)
delete measure;
}
void AnnotLine::initialize(XRef *xrefA, Catalog *catalog, Dict *dict) {
Object obj1;
if (dict->lookup("L", &obj1)->isArray() && obj1.arrayGetLength() == 4) {
Object obj2;
double x1, y1, x2, y2;
(obj1.arrayGet(0, &obj2)->isNum() ? x1 = obj2.getNum() : x1 = 0);
obj2.free();
(obj1.arrayGet(1, &obj2)->isNum() ? y1 = obj2.getNum() : y1 = 0);
obj2.free();
(obj1.arrayGet(2, &obj2)->isNum() ? x2 = obj2.getNum() : x2 = 0);
obj2.free();
(obj1.arrayGet(3, &obj2)->isNum() ? y2 = obj2.getNum() : y2 = 0);
obj2.free();
coord1 = new AnnotCoord(x1, y1);
coord2 = new AnnotCoord(x2, y2);
} else {
coord1 = new AnnotCoord();
coord2 = new AnnotCoord();
}
obj1.free();
if (dict->lookup("LE", &obj1)->isArray() && obj1.arrayGetLength() == 2) {
Object obj2;
if(obj1.arrayGet(0, &obj2)->isString())
startStyle = parseAnnotLineEndingStyle(obj2.getString());
else
startStyle = annotLineEndingNone;
obj2.free();
if(obj1.arrayGet(1, &obj2)->isString())
endStyle = parseAnnotLineEndingStyle(obj2.getString());
else
endStyle = annotLineEndingNone;
obj2.free();
} else {
startStyle = endStyle = annotLineEndingNone;
}
obj1.free();
if (dict->lookup("IC", &obj1)->isArray()) {
interiorColor = new AnnotColor(obj1.getArray());
} else {
interiorColor = NULL;
}
obj1.free();
if (dict->lookup("LL", &obj1)->isNum()) {
leaderLineLength = obj1.getNum();
} else {
leaderLineLength = 0;
}
obj1.free();
if (dict->lookup("LLE", &obj1)->isNum()) {
leaderLineExtension = obj1.getNum();
if (leaderLineExtension < 0)
leaderLineExtension = 0;
} else {
leaderLineExtension = 0;
}
obj1.free();
if (dict->lookup("Cap", &obj1)->isBool()) {
caption = obj1.getBool();
} else {
caption = gFalse;
}
obj1.free();
if (dict->lookup("IT", &obj1)->isName()) {
GooString *intentName = new GooString(obj1.getName());
if(!intentName->cmp("LineArrow")) {
intent = intentLineArrow;
} else if(!intentName->cmp("LineDimension")) {
intent = intentLineDimension;
} else {
intent = intentLineArrow;
}
delete intentName;
} else {
intent = intentLineArrow;
}
obj1.free();
if (dict->lookup("LLO", &obj1)->isNum()) {
leaderLineOffset = obj1.getNum();
if (leaderLineOffset < 0)
leaderLineOffset = 0;
} else {
leaderLineOffset = 0;
}
obj1.free();
if (dict->lookup("CP", &obj1)->isName()) {
GooString *captionName = new GooString(obj1.getName());
if(!captionName->cmp("Inline")) {
captionPos = captionPosInline;
} else if(!captionName->cmp("Top")) {
captionPos = captionPosTop;
} else {
captionPos = captionPosInline;
}
delete captionName;
} else {
captionPos = captionPosInline;
}
obj1.free();
if (dict->lookup("Measure", &obj1)->isDict()) {
measure = NULL;
} else {
measure = NULL;
}
obj1.free();
if ((dict->lookup("CO", &obj1)->isArray()) && (obj1.arrayGetLength() == 2)) {
Object obj2;
(obj1.arrayGet(0, &obj2)->isNum() ? captionTextHorizontal = obj2.getNum() :
captionTextHorizontal = 0);
obj2.free();
(obj1.arrayGet(1, &obj2)->isNum() ? captionTextVertical = obj2.getNum() :
captionTextVertical = 0);
obj2.free();
} else {
captionTextHorizontal = captionTextVertical = 0;
}
obj1.free();
}
//------------------------------------------------------------------------
// AnnotTextMarkup
//------------------------------------------------------------------------
AnnotTextMarkup::AnnotTextMarkup(XRef *xrefA, PDFRectangle *rect, AnnotSubtype subType,
AnnotQuadrilaterals *quadPoints, Catalog *catalog) :
AnnotMarkup(xrefA, rect, catalog) {
Object obj1;
switch (subType) {
case typeHighlight:
annotObj.dictSet ("Subtype", obj1.initName ("Highlight"));
break;
case typeUnderline:
annotObj.dictSet ("Subtype", obj1.initName ("Underline"));
break;
case typeSquiggly:
annotObj.dictSet ("Subtype", obj1.initName ("Squiggly"));
break;
case typeStrikeOut:
annotObj.dictSet ("Subtype", obj1.initName ("StrikeOut"));
break;
default:
assert (0 && "Invalid subtype for AnnotTextMarkup\n");
}
Object obj2;
obj2.initArray (xrefA);
for (int i = 0; i < quadPoints->getQuadrilateralsLength(); ++i) {
Object obj3;
obj2.arrayAdd (obj3.initReal (quadPoints->getX1(i)));
obj2.arrayAdd (obj3.initReal (quadPoints->getY1(i)));
obj2.arrayAdd (obj3.initReal (quadPoints->getX2(i)));
obj2.arrayAdd (obj3.initReal (quadPoints->getY2(i)));
obj2.arrayAdd (obj3.initReal (quadPoints->getX3(i)));
obj2.arrayAdd (obj3.initReal (quadPoints->getY3(i)));
obj2.arrayAdd (obj3.initReal (quadPoints->getX4(i)));
obj2.arrayAdd (obj3.initReal (quadPoints->getY4(i)));
}
annotObj.dictSet ("QuadPoints", &obj2);
initialize(xrefA, catalog, annotObj.getDict());
}
AnnotTextMarkup::AnnotTextMarkup(XRef *xrefA, Dict *dict, Catalog *catalog, Object *obj) :
AnnotMarkup(xrefA, dict, catalog, obj) {
// the real type will be read in initialize()
type = typeHighlight;
initialize(xrefA, catalog, dict);
}
void AnnotTextMarkup::initialize(XRef *xrefA, Catalog *catalog, Dict *dict) {
Object obj1;
if (dict->lookup("Subtype", &obj1)->isName()) {
GooString typeName(obj1.getName());
if (!typeName.cmp("Highlight")) {
type = typeHighlight;
} else if (!typeName.cmp("Underline")) {
type = typeUnderline;
} else if (!typeName.cmp("Squiggly")) {
type = typeSquiggly;
} else if (!typeName.cmp("StrikeOut")) {
type = typeStrikeOut;
}
}
obj1.free();
if(dict->lookup("QuadPoints", &obj1)->isArray()) {
quadrilaterals = new AnnotQuadrilaterals(obj1.getArray(), rect);
} else {
quadrilaterals = NULL;
}
obj1.free();
}
AnnotTextMarkup::~AnnotTextMarkup() {
if(quadrilaterals) {
delete quadrilaterals;
}
}
//------------------------------------------------------------------------
// AnnotWidget
//------------------------------------------------------------------------
AnnotWidget::AnnotWidget(XRef *xrefA, Dict *dict, Catalog *catalog, Object *obj) :
Annot(xrefA, dict, catalog, obj) {
type = typeWidget;
widget = NULL;
initialize(xrefA, catalog, dict);
}
AnnotWidget::~AnnotWidget() {
if (appearCharacs)
delete appearCharacs;
if (action)
delete action;
if (additionActions)
delete additionActions;
if (parent)
delete parent;
}
void AnnotWidget::initialize(XRef *xrefA, Catalog *catalog, Dict *dict) {
Object obj1;
if ((form = catalog->getForm ())) {
widget = form->findWidgetByRef (ref);
// check if field apperances need to be regenerated
// Only text or choice fields needs to have appearance regenerated
// see section 8.6.2 "Variable Text" of PDFReference
regen = gFalse;
if (widget != NULL && (widget->getType () == formText || widget->getType () == formChoice)) {
regen = form->getNeedAppearances ();
}
}
// If field doesn't have an AP we'll have to generate it
if (appearance.isNone () || appearance.isNull ())
regen = gTrue;
if(dict->lookup("H", &obj1)->isName()) {
GooString *modeName = new GooString(obj1.getName());
if(!modeName->cmp("N")) {
mode = highlightModeNone;
} else if(!modeName->cmp("O")) {
mode = highlightModeOutline;
} else if(!modeName->cmp("P") || !modeName->cmp("T")) {
mode = highlightModePush;
} else {
mode = highlightModeInvert;
}
delete modeName;
} else {
mode = highlightModeInvert;
}
obj1.free();
if(dict->lookup("MK", &obj1)->isDict()) {
appearCharacs = new AnnotAppearanceCharacs(obj1.getDict());
} else {
appearCharacs = NULL;
}
obj1.free();
if(dict->lookup("A", &obj1)->isDict()) {
action = NULL;
} else {
action = NULL;
}
obj1.free();
if(dict->lookup("AA", &obj1)->isDict()) {
additionActions = NULL;
} else {
additionActions = NULL;
}
obj1.free();
if(dict->lookup("Parent", &obj1)->isDict()) {
parent = NULL;
} else {
parent = NULL;
}
obj1.free();
}
// Grand unified handler for preparing text strings to be drawn into form
// fields. Takes as input a text string (in PDFDocEncoding or UTF-16).
// Converts some or all of this string to the appropriate encoding for the
// specified font, and computes the width of the text. Can optionally stop
// converting when a specified width has been reached, to perform line-breaking
// for multi-line fields.
//
// Parameters:
// text: input text string to convert
// outBuf: buffer for writing re-encoded string
// i: index at which to start converting; will be updated to point just after
// last character processed
// font: the font which will be used for display
// width: computed width (unscaled by font size) will be stored here
// widthLimit: if non-zero, stop converting to keep width under this value
// (should be scaled down by font size)
// charCount: count of number of characters will be stored here
// noReencode: if set, do not try to translate the character encoding
// (useful for Zapf Dingbats or other unusual encodings)
// can only be used with simple fonts, not CID-keyed fonts
//
// TODO: Handle surrogate pairs in UTF-16.
// Should be able to generate output for any CID-keyed font.
// Doesn't handle vertical fonts--should it?
void AnnotWidget::layoutText(GooString *text, GooString *outBuf, int *i,
GfxFont *font, double *width, double widthLimit,
int *charCount, GBool noReencode)
{
CharCode c;
Unicode uChar, *uAux;
double w = 0.0;
int uLen, n;
double dx, dy, ox, oy;
GBool unicode = text->hasUnicodeMarker();
GBool spacePrev; // previous character was a space
// State for backtracking when more text has been processed than fits within
// widthLimit. We track for both input (text) and output (outBuf) the offset
// to the first character to discard.
//
// We keep track of several points:
// 1 - end of previous completed word which fits
// 2 - previous character which fit
int last_i1, last_i2, last_o1, last_o2;
if (unicode && text->getLength() % 2 != 0) {
error(-1, "AnnotWidget::layoutText, bad unicode string");
return;
}
// skip Unicode marker on string if needed
if (unicode && *i == 0)
*i = 2;
// Start decoding and copying characters, until either:
// we reach the end of the string
// we reach the maximum width
// we reach a newline character
// As we copy characters, keep track of the last full word to fit, so that we
// can backtrack if we exceed the maximum width.
last_i1 = last_i2 = *i;
last_o1 = last_o2 = 0;
spacePrev = gFalse;
outBuf->clear();
while (*i < text->getLength()) {
last_i2 = *i;
last_o2 = outBuf->getLength();
if (unicode) {
uChar = (unsigned char)(text->getChar(*i)) << 8;
uChar += (unsigned char)(text->getChar(*i + 1));
*i += 2;
} else {
if (noReencode)
uChar = text->getChar(*i) & 0xff;
else
uChar = pdfDocEncoding[text->getChar(*i) & 0xff];
*i += 1;
}
// Explicit line break?
if (uChar == '\r' || uChar == '\n') {
// Treat a <CR><LF> sequence as a single line break
if (uChar == '\r' && *i < text->getLength()) {
if (unicode && text->getChar(*i) == '\0'
&& text->getChar(*i + 1) == '\n')
*i += 2;
else if (!unicode && text->getChar(*i) == '\n')
*i += 1;
}
break;
}
if (noReencode) {
outBuf->append(uChar);
} else {
CharCodeToUnicode *ccToUnicode = font->getToUnicode();
if (!ccToUnicode) {
// This assumes an identity CMap.
outBuf->append((uChar >> 8) & 0xff);
outBuf->append(uChar & 0xff);
} else if (ccToUnicode->mapToCharCode(&uChar, &c, 1)) {
ccToUnicode->decRefCnt();
if (font->isCIDFont()) {
// TODO: This assumes an identity CMap. It should be extended to
// handle the general case.
outBuf->append((c >> 8) & 0xff);
outBuf->append(c & 0xff);
} else {
// 8-bit font
outBuf->append(c);
}
} else {
ccToUnicode->decRefCnt();
fprintf(stderr,
"warning: layoutText: cannot convert U+%04X\n", uChar);
}
}
// If we see a space, then we have a linebreak opportunity.
if (uChar == ' ') {
last_i1 = *i;
if (!spacePrev)
last_o1 = last_o2;
spacePrev = gTrue;
} else {
spacePrev = gFalse;
}
// Compute width of character just output
if (outBuf->getLength() > last_o2) {
dx = 0.0;
font->getNextChar(outBuf->getCString() + last_o2,
outBuf->getLength() - last_o2,
&c, &uAux, &uLen, &dx, &dy, &ox, &oy);
w += dx;
}
// Current line over-full now?
if (widthLimit > 0.0 && w > widthLimit) {
if (last_o1 > 0) {
// Back up to the previous word which fit, if there was a previous
// word.
*i = last_i1;
outBuf->del(last_o1, outBuf->getLength() - last_o1);
} else if (last_o2 > 0) {
// Otherwise, back up to the previous character (in the only word on
// this line)
*i = last_i2;
outBuf->del(last_o2, outBuf->getLength() - last_o2);
} else {
// Otherwise, we were trying to fit the first character; include it
// anyway even if it overflows the space--no updates to make.
}
break;
}
}
// If splitting input into lines because we reached the width limit, then
// consume any remaining trailing spaces that would go on this line from the
// input. If in doing so we reach a newline, consume that also. This code
// won't run if we stopped at a newline above, since in that case w <=
// widthLimit still.
if (widthLimit > 0.0 && w > widthLimit) {
if (unicode) {
while (*i < text->getLength()
&& text->getChar(*i) == '\0' && text->getChar(*i + 1) == ' ')
*i += 2;
if (*i < text->getLength()
&& text->getChar(*i) == '\0' && text->getChar(*i + 1) == '\r')
*i += 2;
if (*i < text->getLength()
&& text->getChar(*i) == '\0' && text->getChar(*i + 1) == '\n')
*i += 2;
} else {
while (*i < text->getLength() && text->getChar(*i) == ' ')
*i += 1;
if (*i < text->getLength() && text->getChar(*i) == '\r')
*i += 1;
if (*i < text->getLength() && text->getChar(*i) == '\n')
*i += 1;
}
}
// Compute the actual width and character count of the final string, based on
// breakpoint, if this information is requested by the caller.
if (width != NULL || charCount != NULL) {
char *s = outBuf->getCString();
int len = outBuf->getLength();
if (width != NULL)
*width = 0.0;
if (charCount != NULL)
*charCount = 0;
while (len > 0) {
dx = 0.0;
n = font->getNextChar(s, len, &c, &uAux, &uLen, &dx, &dy, &ox, &oy);
if (n == 0) {
break;
}
if (width != NULL)
*width += dx;
if (charCount != NULL)
*charCount += 1;
s += n;
len -= n;
}
}
}
// Copy the given string to appearBuf, adding parentheses around it and
// escaping characters as appropriate.
void AnnotWidget::writeString(GooString *str, GooString *appearBuf)
{
char c;
int i;
appearBuf->append('(');
for (i = 0; i < str->getLength(); ++i) {
c = str->getChar(i);
if (c == '(' || c == ')' || c == '\\') {
appearBuf->append('\\');
appearBuf->append(c);
} else if (c < 0x20) {
appearBuf->appendf("\\{0:03o}", (unsigned char)c);
} else {
appearBuf->append(c);
}
}
appearBuf->append(')');
}
// Draw the variable text or caption for a field.
void AnnotWidget::drawText(GooString *text, GooString *da, GfxFontDict *fontDict,
GBool multiline, int comb, int quadding,
GBool txField, GBool forceZapfDingbats,
GBool password) {
GooList *daToks;
GooString *tok, *convertedText;
GfxFont *font;
double fontSize, fontSize2, borderWidth, x, xPrev, y, w, wMax;
int tfPos, tmPos, i, j;
GBool freeText = gFalse; // true if text should be freed before return
GBool freeFont = gFalse;
//~ if there is no MK entry, this should use the existing content stream,
//~ and only replace the marked content portion of it
//~ (this is only relevant for Tx fields)
// parse the default appearance string
tfPos = tmPos = -1;
if (da) {
daToks = new GooList();
i = 0;
while (i < da->getLength()) {
while (i < da->getLength() && Lexer::isSpace(da->getChar(i))) {
++i;
}
if (i < da->getLength()) {
for (j = i + 1;
j < da->getLength() && !Lexer::isSpace(da->getChar(j));
++j) ;
daToks->append(new GooString(da, i, j - i));
i = j;
}
}
for (i = 2; i < daToks->getLength(); ++i) {
if (i >= 2 && !((GooString *)daToks->get(i))->cmp("Tf")) {
tfPos = i - 2;
} else if (i >= 6 && !((GooString *)daToks->get(i))->cmp("Tm")) {
tmPos = i - 6;
}
}
} else {
daToks = NULL;
}
// force ZapfDingbats
if (forceZapfDingbats) {
if (tfPos >= 0) {
tok = (GooString *)daToks->get(tfPos);
if (tok->cmp("/ZaDb")) {
tok->clear();
tok->append("/ZaDb");
}
}
}
// get the font and font size
font = NULL;
fontSize = 0;
if (tfPos >= 0) {
tok = (GooString *)daToks->get(tfPos);
if (tok->getLength() >= 1 && tok->getChar(0) == '/') {
if (!fontDict || !(font = fontDict->lookup(tok->getCString() + 1))) {
if (forceZapfDingbats) {
// We are forcing ZaDb but the font does not exist
// so create a fake one
Ref r; // dummy Ref, it's not used at all in this codepath
r.num = 0;
r.gen = 0;
Dict *d = new Dict(xref);
font = new Gfx8BitFont(xref, "ZaDb", r, new GooString("ZapfDingbats"), fontType1, d);
delete d;
freeFont = gTrue;
addDingbatsResource = gTrue;
} else {
error(-1, "Unknown font in field's DA string");
}
}
} else {
error(-1, "Invalid font name in 'Tf' operator in field's DA string");
}
tok = (GooString *)daToks->get(tfPos + 1);
fontSize = gatof(tok->getCString());
} else {
error(-1, "Missing 'Tf' operator in field's DA string");
}
if (!font) {
if (daToks) {
deleteGooList(daToks, GooString);
}
return;
}
// get the border width
borderWidth = border ? border->getWidth() : 0;
// for a password field, replace all characters with asterisks
if (password) {
int len;
if (text->hasUnicodeMarker())
len = (text->getLength() - 2) / 2;
else
len = text->getLength();
text = new GooString;
for (i = 0; i < len; ++i)
text->append('*');
freeText = gTrue;
}
convertedText = new GooString;
// setup
if (txField) {
appearBuf->append("/Tx BMC\n");
}
appearBuf->append("q\n");
appearBuf->append("BT\n");
// multi-line text
if (multiline) {
// note: the comb flag is ignored in multiline mode
wMax = rect->x2 - rect->x1 - 2 * borderWidth - 4;
// compute font autosize
if (fontSize == 0) {
for (fontSize = 20; fontSize > 1; --fontSize) {
y = rect->y2 - rect->y1;
i = 0;
while (i < text->getLength()) {
layoutText(text, convertedText, &i, font, &w, wMax / fontSize, NULL,
forceZapfDingbats);
y -= fontSize;
}
// approximate the descender for the last line
if (y >= 0.33 * fontSize) {
break;
}
}
if (tfPos >= 0) {
tok = (GooString *)daToks->get(tfPos + 1);
tok->clear();