From c48d2f28916b5fdaf9c2e4434d7031c3eb4ded65 Mon Sep 17 00:00:00 2001 From: =?utf-8?q?I=C3=B1igo=20Mart=C3=ADnez?= Date: Sun, 30 Dec 2007 19:37:18 +0100 Subject: [PATCH] Improved AnnotLink support. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Signed-off-by: Iñigo Martínez --- poppler/Annot.cc | 116 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ poppler/Annot.h | 51 ++++++++++++++++++++++++ 2 files changed, 167 insertions(+), 0 deletions(-) diff --git a/poppler/Annot.cc b/poppler/Annot.cc index da6cca9..0cb7641 100644 --- a/poppler/Annot.cc +++ b/poppler/Annot.cc @@ -82,6 +82,22 @@ AnnotExternalDataType parseAnnotExternalData(Dict* dict) { } //------------------------------------------------------------------------ +// AnnotQuadPoints +//------------------------------------------------------------------------ + +AnnotQuadPoints::AnnotQuadPoints(double x1, double y1, double x2, double y2, + double x3, double y3, double x4, double y4) { + this->x1 = x1; + this->y1 = y1; + this->x2 = x2; + this->y2 = y2; + this->x3 = x3; + this->y3 = y3; + this->x4 = x4; + this->y4 = y4; +} + +//------------------------------------------------------------------------ // AnnotBorder //------------------------------------------------------------------------ AnnotBorder::AnnotBorder() { @@ -1975,6 +1991,106 @@ AnnotLink::AnnotLink(XRef *xrefA, Dict *acroForm, Dict *dict, Catalog *catalog, Annot(xrefA, acroForm, dict, catalog, obj) { type = typeLink; + initialize (xrefA, catalog, dict); +} + +AnnotLink::~AnnotLink() { + /* + if (actionDict) + delete actionDict; + + if (uriAction) + delete uriAction; + */ + if(quadrilaterals) { + for(int i = 0; i < quadrilateralsLength; i++) + delete quadrilaterals[i]; + + gfree (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(); + */ + 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(); + */ + /* + * TODO: + * QuadPoints should be ignored if any coordinate in the array lies outside + * the region specified by Rect. + */ + if(dict->lookup("QuadPoints", &obj1)->isArray()) { + quadrilateralsLength = obj1.arrayGetLength(); + if((quadrilateralsLength % 8) == 0) { + Object obj2; + + quadrilaterals = (AnnotQuadPoints **) gmallocn + ((quadrilateralsLength / 8), sizeof(AnnotQuadPoints *)); + for(int i = 0; i < quadrilateralsLength; i += 8) { + double x1, y1, x2, y2, x3, y3, x4, y4; + + (obj1.arrayGet(i, &obj2)->isNum() ? x1 = obj2.getNum() : x1 = 0); + obj2.free(); + (obj1.arrayGet((i + 1), &obj2)->isNum() ? y1 = obj2.getNum() : y1 = 0); + obj2.free(); + (obj1.arrayGet((i + 2), &obj2)->isNum() ? x2 = obj2.getNum() : x2 = 0); + obj2.free(); + (obj1.arrayGet((i + 3), &obj2)->isNum() ? y2 = obj2.getNum() : y2 = 0); + obj2.free(); + (obj1.arrayGet((i + 4), &obj2)->isNum() ? x3 = obj2.getNum() : x3 = 0); + obj2.free(); + (obj1.arrayGet((i + 5), &obj2)->isNum() ? y3 = obj2.getNum() : y3 = 0); + obj2.free(); + (obj1.arrayGet((i + 6), &obj2)->isNum() ? x4 = obj2.getNum() : x4 = 0); + obj2.free(); + (obj1.arrayGet((i + 7), &obj2)->isNum() ? y4 = obj2.getNum() : y4 = 0); + obj2.free(); + + quadrilaterals[i / 8] = + new AnnotQuadPoints(x1, y1, x2, y2, x3, y3, x4, y4); + } + quadrilateralsLength /= 8; + } else { + quadrilaterals = NULL; + quadrilateralsLength = 0; + } + } else { + quadrilaterals = NULL; + } + obj1.free(); } //------------------------------------------------------------------------ diff --git a/poppler/Annot.h b/poppler/Annot.h index 7456160..16a907d 100644 --- a/poppler/Annot.h +++ b/poppler/Annot.h @@ -28,6 +28,29 @@ enum AnnotExternalDataType { }; //------------------------------------------------------------------------ +// AnnotQuadPoints +//------------------------------------------------------------------------ + +class AnnotQuadPoints { +public: + + AnnotQuadPoints(double x1, double y1, double x2, double y2, double x3, + double y3, double x4, double y4); + + double getX1() const { return x1; } + double getY1() const { return y1; } + double getX2() const { return x2; } + double getY2() const { return y2; } + double getX3() const { return x3; } + double getY3() const { return y3; } + double getX4() const { return x4; } + double getY4() const { return y4; } + +protected: + double x1, y1, x2, y2, x3, y3, x4, y4; +}; + +//------------------------------------------------------------------------ // AnnotBorder //------------------------------------------------------------------------ @@ -410,7 +433,35 @@ private: class AnnotLink: public Annot { public: + enum AnnotLinkEffect { + effectNone, // N + effectInvert, // I + effectOutline, // O + effectPush // P + }; + AnnotLink(XRef *xrefA, Dict *acroForm, Dict *dict, Catalog *catalog, Object *obj); + virtual ~AnnotLink(); + + // getters + Dict *getActionDict() const { return actionDict; } + // getDest + AnnotLinkEffect getLinkEffect() const { return linkEffect; } + Dict *getUriAction() const { return uriAction; } + AnnotQuadPoints **getQuadrilaterals() const { return quadrilaterals; } + int getQuadrilateralsLength() const { return quadrilateralsLength; } + +protected: + + void initialize(XRef *xrefA, Catalog *catalog, Dict *dict); + + Dict *actionDict; // A + //Dest + AnnotLinkEffect linkEffect; // H (Default I) + Dict *uriAction; // PA + + AnnotQuadPoints **quadrilaterals; // QuadPoints + int quadrilateralsLength; }; //------------------------------------------------------------------------ -- 1.5.3.7