+++ /dev/null
-//========================================================================
-//
-// Annot.cc
-//
-// Copyright 2000-2003 Glyph & Cog, LLC
-//
-//========================================================================
-
-#include <aconf.h>
-
-#ifdef USE_GCC_PRAGMAS
-#pragma implementation
-#endif
-
-#include <stdlib.h>
-#include "gmem.h"
-#include "Object.h"
-#include "Catalog.h"
-#include "Gfx.h"
-#include "Lexer.h"
-#include "Annot.h"
-
-//------------------------------------------------------------------------
-// Annot
-//------------------------------------------------------------------------
-
-Annot::Annot(XRef *xrefA, Dict *acroForm, Dict *dict) {
- Object apObj, asObj, obj1, obj2;
- GBool regen, isTextField;
- double t;
-
- ok = gFalse;
- xref = xrefA;
- appearBuf = NULL;
-
- if (dict->lookup("Rect", &obj1)->isArray() &&
- obj1.arrayGetLength() == 4) {
- //~ should check object types here
- obj1.arrayGet(0, &obj2);
- xMin = obj2.getNum();
- obj2.free();
- obj1.arrayGet(1, &obj2);
- yMin = obj2.getNum();
- obj2.free();
- obj1.arrayGet(2, &obj2);
- xMax = obj2.getNum();
- obj2.free();
- obj1.arrayGet(3, &obj2);
- yMax = obj2.getNum();
- obj2.free();
- if (xMin > xMax) {
- t = xMin; xMin = xMax; xMax = t;
- }
- if (yMin > yMax) {
- t = yMin; yMin = yMax; yMax = t;
- }
- } else {
- //~ this should return an error
- xMin = yMin = 0;
- xMax = yMax = 1;
- }
- obj1.free();
-
- // check if field apperances need to be regenerated
- regen = gFalse;
- if (acroForm) {
- acroForm->lookup("NeedAppearances", &obj1);
- if (obj1.isBool() && obj1.getBool()) {
- regen = gTrue;
- }
- obj1.free();
- }
-
- // check for a text-type field
- isTextField = dict->lookup("FT", &obj1)->isName("Tx");
- obj1.free();
-
-#if 0 //~ appearance stream generation is not finished yet
- if (regen && isTextField) {
- generateAppearance(acroForm, dict);
- } else {
-#endif
- if (dict->lookup("AP", &apObj)->isDict()) {
- if (dict->lookup("AS", &asObj)->isName()) {
- if (apObj.dictLookup("N", &obj1)->isDict()) {
- if (obj1.dictLookupNF(asObj.getName(), &obj2)->isRef()) {
- obj2.copy(&appearance);
- ok = gTrue;
- } else {
- obj2.free();
- if (obj1.dictLookupNF("Off", &obj2)->isRef()) {
- obj2.copy(&appearance);
- ok = gTrue;
- }
- }
- obj2.free();
- }
- obj1.free();
- } else {
- if (apObj.dictLookupNF("N", &obj1)->isRef()) {
- obj1.copy(&appearance);
- ok = gTrue;
- }
- obj1.free();
- }
- asObj.free();
- }
- apObj.free();
-#if 0 //~ appearance stream generation is not finished yet
- }
-#endif
-}
-
-Annot::~Annot() {
- appearance.free();
- if (appearBuf) {
- delete appearBuf;
- }
-}
-
-void Annot::generateAppearance(Dict *acroForm, Dict *dict) {
- MemStream *appearStream;
- Object daObj, vObj, drObj, appearDict, obj1, obj2;
- GString *daStr, *daStr1, *vStr, *s;
- char buf[256];
- double fontSize;
- int c;
- int i0, i1;
-
- //~ DA can be inherited
- if (dict->lookup("DA", &daObj)->isString()) {
- daStr = daObj.getString();
-
- // look for a font size
- //~ may want to parse the DS entry in place of this (if it exists)
- daStr1 = NULL;
- fontSize = 10;
- for (i1 = daStr->getLength() - 2; i1 >= 0; --i1) {
- if (daStr->getChar(i1) == 'T' && daStr->getChar(i1+1) == 'f') {
- for (--i1; i1 >= 0 && Lexer::isSpace(daStr->getChar(i1)); --i1) ;
- for (i0 = i1; i0 >= 0 && !Lexer::isSpace(daStr->getChar(i0)); --i0) ;
- if (i0 >= 0) {
- ++i0;
- ++i1;
- s = new GString(daStr, i0, i1 - i0);
- fontSize = atof(s->getCString());
- delete s;
-
- // autosize the font
- if (fontSize == 0) {
- fontSize = 0.67 * (yMax - yMin);
- daStr1 = new GString(daStr, 0, i0);
- sprintf(buf, "%.2f", fontSize);
- daStr1->append(buf);
- daStr1->append(daStr->getCString() + i1,
- daStr->getLength() - i1);
- }
- }
- break;
- }
- }
-
- // build the appearance stream contents
- appearBuf = new GString();
- appearBuf->append("/Tx BMC\n");
- appearBuf->append("q BT\n");
- appearBuf->append(daStr1 ? daStr1 : daStr)->append("\n");
- if (dict->lookup("V", &vObj)->isString()) {
- //~ handle quadding -- this requires finding the font and using
- //~ the encoding and char widths
- sprintf(buf, "1 0 0 1 %.2f %.2f Tm\n", 2.0, yMax - yMin - fontSize);
- appearBuf->append(buf);
- sprintf(buf, "%g TL\n", fontSize);
- appearBuf->append(buf);
- vStr = vObj.getString();
- i0 = 0;
- while (i0 < vStr->getLength()) {
- for (i1 = i0;
- i1 < vStr->getLength() &&
- vStr->getChar(i1) != '\n' && vStr->getChar(i1) != '\r';
- ++i1) ;
- if (i0 > 0) {
- appearBuf->append("T*\n");
- }
- appearBuf->append('(');
- for (; i0 < i1; ++i0) {
- c = vStr->getChar(i0);
- if (c == '(' || c == ')' || c == '\\') {
- appearBuf->append('\\');
- appearBuf->append(c);
- } else if (c < 0x20 || c >= 0x80) {
- sprintf(buf, "\\%03o", c);
- appearBuf->append(buf);
- } else {
- appearBuf->append(c);
- }
- }
- appearBuf->append(") Tj\n");
- if (i1 + 1 < vStr->getLength() &&
- vStr->getChar(i1) == '\r' && vStr->getChar(i1 + 1) == '\n') {
- i0 = i1 + 2;
- } else {
- i0 = i1 + 1;
- }
- }
- }
- vObj.free();
- appearBuf->append("ET Q\n");
- appearBuf->append("EMC\n");
-
- // build the appearance stream dictionary
- appearDict.initDict(xref);
- appearDict.dictAdd(copyString("Length"),
- obj1.initInt(appearBuf->getLength()));
- appearDict.dictAdd(copyString("Subtype"), obj1.initName("Form"));
- obj1.initArray(xref);
- obj1.arrayAdd(obj2.initReal(0));
- obj1.arrayAdd(obj2.initReal(0));
- obj1.arrayAdd(obj2.initReal(xMax - xMin));
- obj1.arrayAdd(obj2.initReal(yMax - yMin));
- appearDict.dictAdd(copyString("BBox"), &obj1);
-
- // find the resource dictionary
- dict->lookup("DR", &drObj);
- if (!drObj.isDict()) {
- dict->lookup("Parent", &obj1);
- while (obj1.isDict()) {
- drObj.free();
- obj1.dictLookup("DR", &drObj);
- if (drObj.isDict()) {
- break;
- }
- obj1.dictLookup("Parent", &obj2);
- obj1.free();
- obj1 = obj2;
- }
- obj1.free();
- if (!drObj.isDict()) {
- if (acroForm) {
- drObj.free();
- acroForm->lookup("DR", &drObj);
- }
- }
- }
- if (drObj.isDict()) {
- appearDict.dictAdd(copyString("Resources"), drObj.copy(&obj1));
- }
- drObj.free();
-
- // build the appearance stream
- appearStream = new MemStream(appearBuf->getCString(), 0,
- appearBuf->getLength(), &appearDict);
- appearance.initStream(appearStream);
- ok = gTrue;
-
- if (daStr1) {
- delete daStr1;
- }
- }
- daObj.free();
-}
-
-void Annot::draw(Gfx *gfx) {
- Object obj;
-
- if (appearance.fetch(xref, &obj)->isStream()) {
- gfx->doAnnot(&obj, xMin, yMin, xMax, yMax);
- }
- obj.free();
-}
-
-//------------------------------------------------------------------------
-// Annots
-//------------------------------------------------------------------------
-
-Annots::Annots(XRef *xref, Catalog *catalog, Object *annotsObj) {
- Dict *acroForm;
- Annot *annot;
- Object obj1;
- int size;
- int i;
-
- annots = NULL;
- size = 0;
- nAnnots = 0;
-
- acroForm = catalog->getAcroForm()->isDict() ?
- catalog->getAcroForm()->getDict() : NULL;
- if (annotsObj->isArray()) {
- for (i = 0; i < annotsObj->arrayGetLength(); ++i) {
- if (annotsObj->arrayGet(i, &obj1)->isDict()) {
- annot = new Annot(xref, acroForm, obj1.getDict());
- if (annot->isOk()) {
- if (nAnnots >= size) {
- size += 16;
- annots = (Annot **)greallocn(annots, size, sizeof(Annot *));
- }
- annots[nAnnots++] = annot;
- } else {
- delete annot;
- }
- }
- obj1.free();
- }
- }
-}
-
-Annots::~Annots() {
- int i;
-
- for (i = 0; i < nAnnots; ++i) {
- delete annots[i];
- }
- gfree(annots);
-}
git.asbjorn.biz / swftools.git / blobdiff