X-Git-Url: http://git.asbjorn.it/?a=blobdiff_plain;f=pdf2swf%2Fxpdf%2FLink.cc;h=2d146b5736056d1c80864ca562e02561a68a167a;hb=c7432833fe3a6469d63fad135151a92e12877b94;hp=af64c8bef5d713977649ad9e2e0909ee4fbee81f;hpb=b9ddd4a2ed601bc01ddacc69d2522687a93a94ce;p=swftools.git diff --git a/pdf2swf/xpdf/Link.cc b/pdf2swf/xpdf/Link.cc index af64c8b..2d146b5 100644 --- a/pdf2swf/xpdf/Link.cc +++ b/pdf2swf/xpdf/Link.cc @@ -2,15 +2,16 @@ // // Link.cc // -// Copyright 1996-2002 Glyph & Cog, LLC +// Copyright 1996-2003 Glyph & Cog, LLC // //======================================================================== -#ifdef __GNUC__ +#include + +#ifdef USE_GCC_PRAGMAS #pragma implementation #endif -#include #include #include #include "gmem.h" @@ -22,8 +23,117 @@ #include "Link.h" //------------------------------------------------------------------------ +// LinkAction +//------------------------------------------------------------------------ + +LinkAction *LinkAction::parseDest(Object *obj) { + LinkAction *action; + + action = new LinkGoTo(obj); + if (!action->isOk()) { + delete action; + return NULL; + } + return action; +} + +LinkAction *LinkAction::parseAction(Object *obj, GString *baseURI) { + LinkAction *action; + Object obj2, obj3, obj4; + + if (!obj->isDict()) { + error(-1, "Bad annotation action"); + return NULL; + } + + obj->dictLookup("S", &obj2); + + // GoTo action + if (obj2.isName("GoTo")) { + obj->dictLookup("D", &obj3); + action = new LinkGoTo(&obj3); + obj3.free(); + + // GoToR action + } else if (obj2.isName("GoToR")) { + obj->dictLookup("F", &obj3); + obj->dictLookup("D", &obj4); + action = new LinkGoToR(&obj3, &obj4); + obj3.free(); + obj4.free(); + + // Launch action + } else if (obj2.isName("Launch")) { + action = new LinkLaunch(obj); + + // URI action + } else if (obj2.isName("URI")) { + obj->dictLookup("URI", &obj3); + action = new LinkURI(&obj3, baseURI); + obj3.free(); + + // Named action + } else if (obj2.isName("Named")) { + obj->dictLookup("N", &obj3); + action = new LinkNamed(&obj3); + obj3.free(); + + // Movie action + } else if (obj2.isName("Movie")) { + obj->dictLookupNF("Annot", &obj3); + obj->dictLookup("T", &obj4); + action = new LinkMovie(&obj3, &obj4); + obj3.free(); + obj4.free(); + + // unknown action + } else if (obj2.isName()) { + action = new LinkUnknown(obj2.getName()); + + // action is missing or wrong type + } else { + error(-1, "Bad annotation action"); + action = NULL; + } + + obj2.free(); + + if (action && !action->isOk()) { + delete action; + return NULL; + } + return action; +} + +GString *LinkAction::getFileSpecName(Object *fileSpecObj) { + GString *name; + Object obj1; + + name = NULL; + + // string + if (fileSpecObj->isString()) { + name = fileSpecObj->getString()->copy(); + + // dictionary + } else if (fileSpecObj->isDict()) { + if (!fileSpecObj->dictLookup("Unix", &obj1)->isString()) { + obj1.free(); + fileSpecObj->dictLookup("F", &obj1); + } + if (obj1.isString()) + name = obj1.getString()->copy(); + else + error(-1, "Illegal file spec in link"); + obj1.free(); + + // error + } else { + error(-1, "Illegal file spec in link"); + } -static GString *getFileSpecName(Object *fileSpecObj); + return name; +} //------------------------------------------------------------------------ // LinkDest @@ -37,6 +147,10 @@ LinkDest::LinkDest(Array *a) { ok = gFalse; // get page + if (a->getLength() < 2) { + error(-1, "Annotation destination array is too short"); + return; + } a->getNF(0, &obj1); if (obj1.isInt()) { pageNum = obj1.getInt() + 1; @@ -57,46 +171,66 @@ LinkDest::LinkDest(Array *a) { // XYZ link if (obj1.isName("XYZ")) { kind = destXYZ; - a->get(2, &obj2); - if (obj2.isNull()) { + if (a->getLength() < 3) { changeLeft = gFalse; - } else if (obj2.isNum()) { - changeLeft = gTrue; - left = obj2.getNum(); } else { - error(-1, "Bad annotation destination position"); - goto err1; + a->get(2, &obj2); + if (obj2.isNull()) { + changeLeft = gFalse; + } else if (obj2.isNum()) { + changeLeft = gTrue; + left = obj2.getNum(); + } else { + error(-1, "Bad annotation destination position"); + goto err1; + } + obj2.free(); } - obj2.free(); - a->get(3, &obj2); - if (obj2.isNull()) { + if (a->getLength() < 4) { changeTop = gFalse; - } else if (obj2.isNum()) { - changeTop = gTrue; - top = obj2.getNum(); } else { - error(-1, "Bad annotation destination position"); - goto err1; + a->get(3, &obj2); + if (obj2.isNull()) { + changeTop = gFalse; + } else if (obj2.isNum()) { + changeTop = gTrue; + top = obj2.getNum(); + } else { + error(-1, "Bad annotation destination position"); + goto err1; + } + obj2.free(); } - obj2.free(); - a->get(4, &obj2); - if (obj2.isNull()) { + if (a->getLength() < 5) { changeZoom = gFalse; - } else if (obj2.isNum()) { - changeZoom = gTrue; - zoom = obj2.getNum(); } else { - error(-1, "Bad annotation destination position"); - goto err1; + a->get(4, &obj2); + if (obj2.isNull()) { + changeZoom = gFalse; + } else if (obj2.isNum()) { + changeZoom = gTrue; + zoom = obj2.getNum(); + } else { + error(-1, "Bad annotation destination position"); + goto err1; + } + obj2.free(); } - obj2.free(); // Fit link } else if (obj1.isName("Fit")) { + if (a->getLength() < 2) { + error(-1, "Annotation destination array is too short"); + goto err2; + } kind = destFit; // FitH link } else if (obj1.isName("FitH")) { + if (a->getLength() < 3) { + error(-1, "Annotation destination array is too short"); + goto err2; + } kind = destFitH; if (!a->get(2, &obj2)->isNum()) { error(-1, "Bad annotation destination position"); @@ -107,6 +241,10 @@ LinkDest::LinkDest(Array *a) { // FitV link } else if (obj1.isName("FitV")) { + if (a->getLength() < 3) { + error(-1, "Annotation destination array is too short"); + goto err2; + } kind = destFitV; if (!a->get(2, &obj2)->isNum()) { error(-1, "Bad annotation destination position"); @@ -117,6 +255,10 @@ LinkDest::LinkDest(Array *a) { // FitR link } else if (obj1.isName("FitR")) { + if (a->getLength() < 6) { + error(-1, "Annotation destination array is too short"); + goto err2; + } kind = destFitR; if (!a->get(2, &obj2)->isNum()) { error(-1, "Bad annotation destination position"); @@ -145,10 +287,18 @@ LinkDest::LinkDest(Array *a) { // FitB link } else if (obj1.isName("FitB")) { + if (a->getLength() < 2) { + error(-1, "Annotation destination array is too short"); + goto err2; + } kind = destFitB; // FitBH link } else if (obj1.isName("FitBH")) { + if (a->getLength() < 3) { + error(-1, "Annotation destination array is too short"); + goto err2; + } kind = destFitBH; if (!a->get(2, &obj2)->isNum()) { error(-1, "Bad annotation destination position"); @@ -159,6 +309,10 @@ LinkDest::LinkDest(Array *a) { // FitBV link } else if (obj1.isName("FitBV")) { + if (a->getLength() < 3) { + error(-1, "Annotation destination array is too short"); + goto err2; + } kind = destFitBV; if (!a->get(2, &obj2)->isNum()) { error(-1, "Bad annotation destination position"); @@ -292,18 +446,33 @@ LinkLaunch::LinkLaunch(Object *actionObj) { fileName = getFileSpecName(&obj1); } else { obj1.free(); +#ifdef WIN32 + if (actionObj->dictLookup("Win", &obj1)->isDict()) { + obj1.dictLookup("F", &obj2); + fileName = getFileSpecName(&obj2); + obj2.free(); + if (obj1.dictLookup("P", &obj2)->isString()) { + params = obj2.getString()->copy(); + } + obj2.free(); + } else { + error(-1, "Bad launch-type link action"); + } +#else //~ This hasn't been defined by Adobe yet, so assume it looks //~ just like the Win dictionary until they say otherwise. if (actionObj->dictLookup("Unix", &obj1)->isDict()) { obj1.dictLookup("F", &obj2); fileName = getFileSpecName(&obj2); obj2.free(); - if (obj1.dictLookup("P", &obj2)->isString()) + if (obj1.dictLookup("P", &obj2)->isString()) { params = obj2.getString()->copy(); + } obj2.free(); } else { error(-1, "Bad launch-type link action"); } +#endif } obj1.free(); } @@ -378,6 +547,28 @@ LinkNamed::~LinkNamed() { } //------------------------------------------------------------------------ +// LinkMovie +//------------------------------------------------------------------------ + +LinkMovie::LinkMovie(Object *annotObj, Object *titleObj) { + annotRef.num = -1; + title = NULL; + if (annotObj->isRef()) { + annotRef = annotObj->getRef(); + } else if (titleObj->isString()) { + title = titleObj->getString()->copy(); + } else { + error(-1, "Movie action is missing both the Annot and T keys"); + } +} + +LinkMovie::~LinkMovie() { + if (title) { + delete title; + } +} + +//------------------------------------------------------------------------ // LinkUnknown //------------------------------------------------------------------------ @@ -390,13 +581,42 @@ LinkUnknown::~LinkUnknown() { } //------------------------------------------------------------------------ +// LinkBorderStyle +//------------------------------------------------------------------------ + +LinkBorderStyle::LinkBorderStyle(LinkBorderType 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; +} + +LinkBorderStyle::~LinkBorderStyle() { + if (dash) { + gfree(dash); + } +} + +//------------------------------------------------------------------------ // Link //------------------------------------------------------------------------ Link::Link(Dict *dict, GString *baseURI) { - Object obj1, obj2, obj3, obj4; + Object obj1, obj2, obj3; + LinkBorderType borderType; + double borderWidth; + double *borderDash; + int borderDashLength; + double borderR, borderG, borderB; double t; + int i; + borderStyle = NULL; action = NULL; ok = gFalse; @@ -441,82 +661,110 @@ Link::Link(Dict *dict, GString *baseURI) { y2 = t; } - // get border - borderW = 1; - if (!dict->lookup("Border", &obj1)->isNull()) { - if (obj1.isArray() && obj1.arrayGetLength() >= 3) { - if (obj1.arrayGet(2, &obj2)->isNum()) { - borderW = obj2.getNum(); - } else { - error(-1, "Bad annotation border"); + // get the border style info + borderType = linkBorderSolid; + borderWidth = 1; + borderDash = NULL; + borderDashLength = 0; + borderR = 0; + borderG = 0; + borderB = 1; + if (dict->lookup("BS", &obj1)->isDict()) { + if (obj1.dictLookup("S", &obj2)->isName()) { + if (obj2.isName("S")) { + borderType = linkBorderSolid; + } else if (obj2.isName("D")) { + borderType = linkBorderDashed; + } else if (obj2.isName("B")) { + borderType = linkBorderEmbossed; + } else if (obj2.isName("I")) { + borderType = linkBorderEngraved; + } else if (obj2.isName("U")) { + borderType = linkBorderUnderlined; + } + } + obj2.free(); + if (obj1.dictLookup("W", &obj2)->isNum()) { + borderWidth = obj2.getNum(); + } + obj2.free(); + if (obj1.dictLookup("D", &obj2)->isArray()) { + borderDashLength = obj2.arrayGetLength(); + borderDash = (double *)gmalloc(borderDashLength * sizeof(double)); + for (i = 0; i < borderDashLength; ++i) { + if (obj2.arrayGet(i, &obj3)->isNum()) { + borderDash[i] = obj3.getNum(); + } else { + borderDash[i] = 1; + } + obj3.free(); + } + } + obj2.free(); + } else { + obj1.free(); + if (dict->lookup("Border", &obj1)->isArray()) { + if (obj1.arrayGetLength() >= 3) { + if (obj1.arrayGet(2, &obj2)->isNum()) { + borderWidth = obj2.getNum(); + } + obj2.free(); + if (obj1.arrayGetLength() >= 4) { + if (obj1.arrayGet(3, &obj2)->isArray()) { + borderType = linkBorderDashed; + borderDashLength = obj2.arrayGetLength(); + borderDash = (double *)gmalloc(borderDashLength * sizeof(double)); + for (i = 0; i < borderDashLength; ++i) { + if (obj2.arrayGet(i, &obj3)->isNum()) { + borderDash[i] = obj3.getNum(); + } else { + borderDash[i] = 1; + } + obj3.free(); + } + } + obj2.free(); + } } - obj2.free(); } } obj1.free(); + if (dict->lookup("C", &obj1)->isArray() && obj1.arrayGetLength() == 3) { + if (obj1.arrayGet(0, &obj2)->isNum()) { + borderR = obj2.getNum(); + } + obj1.free(); + if (obj1.arrayGet(1, &obj2)->isNum()) { + borderG = obj2.getNum(); + } + obj1.free(); + if (obj1.arrayGet(2, &obj2)->isNum()) { + borderB = obj2.getNum(); + } + obj1.free(); + } + obj1.free(); + borderStyle = new LinkBorderStyle(borderType, borderWidth, + borderDash, borderDashLength, + borderR, borderG, borderB); // look for destination if (!dict->lookup("Dest", &obj1)->isNull()) { - action = new LinkGoTo(&obj1); + action = LinkAction::parseDest(&obj1); // look for action } else { obj1.free(); if (dict->lookup("A", &obj1)->isDict()) { - obj1.dictLookup("S", &obj2); - - // GoTo action - if (obj2.isName("GoTo")) { - obj1.dictLookup("D", &obj3); - action = new LinkGoTo(&obj3); - obj3.free(); - - // GoToR action - } else if (obj2.isName("GoToR")) { - obj1.dictLookup("F", &obj3); - obj1.dictLookup("D", &obj4); - action = new LinkGoToR(&obj3, &obj4); - obj3.free(); - obj4.free(); - - // Launch action - } else if (obj2.isName("Launch")) { - action = new LinkLaunch(&obj1); - - // URI action - } else if (obj2.isName("URI")) { - obj1.dictLookup("URI", &obj3); - action = new LinkURI(&obj3, baseURI); - obj3.free(); - - // Named action - } else if (obj2.isName("Named")) { - obj1.dictLookup("N", &obj3); - action = new LinkNamed(&obj3); - obj3.free(); - - // unknown action - } else if (obj2.isName()) { - action = new LinkUnknown(obj2.getName()); - - // action is missing or wrong type - } else { - error(-1, "Bad annotation action"); - action = NULL; - } - - obj2.free(); - - } else { - error(-1, "Missing annotation destination/action"); - action = NULL; + action = LinkAction::parseAction(&obj1, baseURI); } } obj1.free(); // check for bad action - if (action && action->isOk()) + if (action) { ok = gTrue; + } return; @@ -527,8 +775,12 @@ Link::Link(Dict *dict, GString *baseURI) { } Link::~Link() { - if (action) + if (borderStyle) { + delete borderStyle; + } + if (action) { delete action; + } } //------------------------------------------------------------------------ @@ -595,36 +847,3 @@ GBool Links::onLink(double x, double y) { } return gFalse; } - -//------------------------------------------------------------------------ - -// Extract a file name from a file specification (string or dictionary). -static GString *getFileSpecName(Object *fileSpecObj) { - GString *name; - Object obj1; - - name = NULL; - - // string - if (fileSpecObj->isString()) { - name = fileSpecObj->getString()->copy(); - - // dictionary - } else if (fileSpecObj->isDict()) { - if (!fileSpecObj->dictLookup("Unix", &obj1)->isString()) { - obj1.free(); - fileSpecObj->dictLookup("F", &obj1); - } - if (obj1.isString()) - name = obj1.getString()->copy(); - else - error(-1, "Illegal file spec in link"); - obj1.free(); - - // error - } else { - error(-1, "Illegal file spec in link"); - } - - return name; -}