//
// Link.cc
//
-// Copyright 1996 Derek B. Noonburg
+// Copyright 1996-2003 Glyph & Cog, LLC
//
//========================================================================
-#ifdef __GNUC__
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
#pragma implementation
#endif
#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()) {
+#ifdef WIN32
+ if (!fileSpecObj->dictLookup("DOS", &obj1)->isString()) {
+#else
+ if (!fileSpecObj->dictLookup("Unix", &obj1)->isString()) {
+#endif
+ 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");
+ }
+
+ // system-dependent path manipulation
+ if (name) {
+#ifdef WIN32
+ int i, j;
+
+ // "//...." --> "\...."
+ // "/x/...." --> "x:\...."
+ // "/server/share/...." --> "\\server\share\...."
+ // convert escaped slashes to slashes and unescaped slashes to backslashes
+ i = 0;
+ if (name->getChar(0) == '/') {
+ if (name->getLength() >= 2 && name->getChar(1) == '/') {
+ name->del(0);
+ i = 0;
+ } else if (name->getLength() >= 2 &&
+ ((name->getChar(1) >= 'a' && name->getChar(1) <= 'z') ||
+ (name->getChar(1) >= 'A' && name->getChar(1) <= 'Z')) &&
+ (name->getLength() == 2 || name->getChar(2) == '/')) {
+ name->setChar(0, name->getChar(1));
+ name->setChar(1, ':');
+ i = 2;
+ } else {
+ for (j = 2; j < name->getLength(); ++j) {
+ if (name->getChar(j-1) != '\\' &&
+ name->getChar(j) == '/') {
+ break;
+ }
+ }
+ if (j < name->getLength()) {
+ name->setChar(0, '\\');
+ name->insert(0, '\\');
+ i = 2;
+ }
+ }
+ }
+ for (; i < name->getLength(); ++i) {
+ if (name->getChar(i) == '/') {
+ name->setChar(i, '\\');
+ } else if (name->getChar(i) == '\\' &&
+ i+1 < name->getLength() &&
+ name->getChar(i+1) == '/') {
+ name->del(i);
+ }
+ }
+#else
+ // no manipulation needed for Unix
+#endif
+ }
-static GString *getFileSpecName(Object *fileSpecObj);
+ return name;
+}
//------------------------------------------------------------------------
// LinkDest
//------------------------------------------------------------------------
-LinkDest::LinkDest(Array *a, GBool pageIsRef1) {
+LinkDest::LinkDest(Array *a) {
Object obj1, obj2;
// initialize fields
- pageIsRef = pageIsRef1;
left = bottom = right = top = zoom = 0;
ok = gFalse;
// get page
- if (pageIsRef) {
- if (!a->getNF(0, &obj1)->isRef()) {
- if(obj1.getType()!=objInt)
- error(-1, "Bad annotation destination (1) type=%d", obj1.getType());
- goto err2;
- }
+ if (a->getLength() < 2) {
+ error(-1, "Annotation destination array is too short");
+ return;
+ }
+ a->getNF(0, &obj1);
+ if (obj1.isInt()) {
+ pageNum = obj1.getInt() + 1;
+ pageIsRef = gFalse;
+ } else if (obj1.isRef()) {
pageRef.num = obj1.getRefNum();
pageRef.gen = obj1.getRefGen();
- obj1.free();
+ pageIsRef = gTrue;
} else {
- if (!a->get(0, &obj1)->isInt()) {
- error(-1, "Bad annotation destination (2)");
- goto err2;
- }
- pageNum = obj1.getInt() + 1;
- obj1.free();
+ error(-1, "Bad annotation destination");
+ goto err2;
}
+ obj1.free();
// get destination type
a->get(1, &obj1);
// 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");
// 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");
// 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");
// 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");
// 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");
// destination dictionary
} else if (destObj->isArray()) {
- dest = new LinkDest(destObj->getArray(), gTrue);
+ dest = new LinkDest(destObj->getArray());
if (!dest->isOk()) {
delete dest;
dest = NULL;
// destination dictionary
} else if (destObj->isArray()) {
- dest = new LinkDest(destObj->getArray(), gFalse);
+ dest = new LinkDest(destObj->getArray());
if (!dest->isOk()) {
delete dest;
dest = NULL;
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();
}
uri = NULL;
if (uriObj->isString()) {
uri2 = uriObj->getString()->copy();
- if (baseURI) {
+ if (baseURI && baseURI->getLength() > 0) {
n = strcspn(uri2->getCString(), "/:");
if (n == uri2->getLength() || uri2->getChar(n) == '/') {
uri = baseURI->copy();
}
//------------------------------------------------------------------------
+// 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
//------------------------------------------------------------------------
-LinkUnknown::LinkUnknown(char *action1) {
- action = new GString(action1);
+LinkUnknown::LinkUnknown(char *actionA) {
+ action = new GString(actionA);
}
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;
y2 = t;
}
- // get border
- borderW = 0;
- if (!dict->lookup("Border", &obj1)->isNull()) {
- if (obj1.isArray() && 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 *)gmallocn(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 *)gmallocn(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();
+ }
+ } else {
+ // Adobe draws no border at all if the last element is of
+ // the wrong type.
+ borderWidth = 0;
+ }
+ 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;
}
Link::~Link() {
- if (action)
+ if (borderStyle) {
+ delete borderStyle;
+ }
+ if (action) {
delete action;
+ }
}
//------------------------------------------------------------------------
if (link->isOk()) {
if (numLinks >= size) {
size += 16;
- links = (Link **)grealloc(links, size * sizeof(Link *));
+ links = (Link **)greallocn(links, size, sizeof(Link *));
}
links[numLinks++] = link;
} else {
LinkAction *Links::find(double x, double y) {
int i;
- for (i = 0; i < numLinks; ++i) {
+ for (i = numLinks - 1; i >= 0; --i) {
if (links[i]->inRect(x, y)) {
return links[i]->getAction();
}
}
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;
-}
git.asbjorn.biz / swftools.git / blobdiff