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+//========================================================================
+//
+// Page.h
+//
+// Copyright 1996-2003 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) 2005 Kristian Høgsberg <krh@redhat.com>
+// Copyright (C) 2005 Jeff Muizelaar <jeff@infidigm.net>
+// Copyright (C) 2006 Pino Toscano <pino@kde.org>
+// Copyright (C) 2006 Carlos Garcia Campos <carlosgc@gnome.org>
+// Copyright (C) 2007 Julien Rebetez <julienr@svn.gnome.org>
+// Copyright (C) 2008 Iñigo Martínez <inigomartinez@gmail.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
+//
+//========================================================================
+
+#ifndef PAGE_H
+#define PAGE_H
+
+#ifdef USE_GCC_PRAGMAS
+#pragma interface
+#endif
+
+#include "Object.h"
+
+class Dict;
+class XRef;
+class OutputDev;
+class Links;
+class Catalog;
+class Annots;
+class Annot;
+class Gfx;
+class FormPageWidgets;
+class Form;
+
+//------------------------------------------------------------------------
+
+class PDFRectangle {
+public:
+ double x1, y1, x2, y2;
+
+ PDFRectangle() { x1 = y1 = x2 = y2 = 0; }
+ PDFRectangle(double x1A, double y1A, double x2A, double y2A)
+ { x1 = x1A; y1 = y1A; x2 = x2A; y2 = y2A; }
+ GBool isValid() { return x1 != 0 || y1 != 0 || x2 != 0 || y2 != 0; }
+ void clipTo(PDFRectangle *rect);
+};
+
+//------------------------------------------------------------------------
+// PageAttrs
+//------------------------------------------------------------------------
+
+class PageAttrs {
+public:
+
+ // Construct a new PageAttrs object by merging a dictionary
+ // (of type Pages or Page) into another PageAttrs object. If
+ // <attrs> is NULL, uses defaults.
+ PageAttrs(PageAttrs *attrs, Dict *dict);
+
+ // Destructor.
+ ~PageAttrs();
+
+ // Accessors.
+ PDFRectangle *getMediaBox() { return &mediaBox; }
+ PDFRectangle *getCropBox() { return &cropBox; }
+ GBool isCropped() { return haveCropBox; }
+ PDFRectangle *getBleedBox() { return &bleedBox; }
+ PDFRectangle *getTrimBox() { return &trimBox; }
+ PDFRectangle *getArtBox() { return &artBox; }
+ int getRotate() { return rotate; }
+ GooString *getLastModified()
+ { return lastModified.isString()
+ ? lastModified.getString() : (GooString *)NULL; }
+ Dict *getBoxColorInfo()
+ { return boxColorInfo.isDict() ? boxColorInfo.getDict() : (Dict *)NULL; }
+ Dict *getGroup()
+ { return group.isDict() ? group.getDict() : (Dict *)NULL; }
+ Stream *getMetadata()
+ { return metadata.isStream() ? metadata.getStream() : (Stream *)NULL; }
+ Dict *getPieceInfo()
+ { return pieceInfo.isDict() ? pieceInfo.getDict() : (Dict *)NULL; }
+ Dict *getSeparationInfo()
+ { return separationInfo.isDict()
+ ? separationInfo.getDict() : (Dict *)NULL; }
+ Dict *getResourceDict()
+ { return resources.isDict() ? resources.getDict() : (Dict *)NULL; }
+
+private:
+
+ GBool readBox(Dict *dict, char *key, PDFRectangle *box);
+
+ PDFRectangle mediaBox;
+ PDFRectangle cropBox;
+ GBool haveCropBox;
+ PDFRectangle bleedBox;
+ PDFRectangle trimBox;
+ PDFRectangle artBox;
+ int rotate;
+ Object lastModified;
+ Object boxColorInfo;
+ Object group;
+ Object metadata;
+ Object pieceInfo;
+ Object separationInfo;
+ Object resources;
+};
+
+//------------------------------------------------------------------------
+// Page
+//------------------------------------------------------------------------
+
+class Page {
+public:
+
+ // Constructor.
+ Page(XRef *xrefA, int numA, Dict *pageDict, Ref pageRefA, PageAttrs *attrsA, Form *form);
+
+ // Destructor.
+ ~Page();
+
+ // Is page valid?
+ GBool isOk() { return ok; }
+
+ // Get page parameters.
+ int getNum() { return num; }
+ PDFRectangle *getMediaBox() { return attrs->getMediaBox(); }
+ PDFRectangle *getCropBox() { return attrs->getCropBox(); }
+ GBool isCropped() { return attrs->isCropped(); }
+ double getMediaWidth()
+ { return attrs->getMediaBox()->x2 - attrs->getMediaBox()->x1; }
+ double getMediaHeight()
+ { return attrs->getMediaBox()->y2 - attrs->getMediaBox()->y1; }
+ double getCropWidth()
+ { return attrs->getCropBox()->x2 - attrs->getCropBox()->x1; }
+ double getCropHeight()
+ { return attrs->getCropBox()->y2 - attrs->getCropBox()->y1; }
+ PDFRectangle *getBleedBox() { return attrs->getBleedBox(); }
+ PDFRectangle *getTrimBox() { return attrs->getTrimBox(); }
+ PDFRectangle *getArtBox() { return attrs->getArtBox(); }
+ int getRotate() { return attrs->getRotate(); }
+ GooString *getLastModified() { return attrs->getLastModified(); }
+ Dict *getBoxColorInfo() { return attrs->getBoxColorInfo(); }
+ Dict *getGroup() { return attrs->getGroup(); }
+ Stream *getMetadata() { return attrs->getMetadata(); }
+ Dict *getPieceInfo() { return attrs->getPieceInfo(); }
+ Dict *getSeparationInfo() { return attrs->getSeparationInfo(); }
+
+ // Get resource dictionary.
+ Dict *getResourceDict() { return attrs->getResourceDict(); }
+
+ // Get annotations array.
+ Object *getAnnots(Object *obj) { return annots.fetch(xref, obj); }
+ // Add a new annotation to the page
+ void addAnnot(Annot *annot);
+
+ // Return a list of links.
+ Links *getLinks(Catalog *catalog);
+
+ // Return a list of annots. Ownership is transferred to the caller.
+ Annots *getAnnots(Catalog *catalog);
+
+ // Get contents.
+ Object *getContents(Object *obj) { return contents.fetch(xref, obj); }
+
+ // Get thumb.
+ Object *getThumb(Object *obj) { return thumb.fetch(xref, obj); }
+ GBool loadThumb(unsigned char **data, int *width, int *height, int *rowstride);
+
+ // Get transition.
+ Object *getTrans(Object *obj) { return trans.fetch(xref, obj); }
+
+ // Get form.
+ FormPageWidgets *getPageWidgets() { return pageWidgets; }
+
+ // Get duration, the maximum length of time, in seconds,
+ // that the page is displayed before the presentation automatically
+ // advances to the next page
+ double getDuration() { return duration; }
+
+ // Get actions
+ Object *getActions(Object *obj) { return actions.fetch(xref, obj); }
+
+ Gfx *createGfx(OutputDev *out, double hDPI, double vDPI,
+ int rotate, GBool useMediaBox, GBool crop,
+ int sliceX, int sliceY, int sliceW, int sliceH,
+ GBool printing, Catalog *catalog,
+ GBool (*abortCheckCbk)(void *data),
+ void *abortCheckCbkData,
+ GBool (*annotDisplayDecideCbk)(Annot *annot, void *user_data),
+ void *annotDisplayDecideCbkData);
+
+ // Display a page.
+ void display(OutputDev *out, double hDPI, double vDPI,
+ int rotate, GBool useMediaBox, GBool crop,
+ GBool printing, Catalog *catalog,
+ GBool (*abortCheckCbk)(void *data) = NULL,
+ void *abortCheckCbkData = NULL,
+ GBool (*annotDisplayDecideCbk)(Annot *annot, void *user_data) = NULL,
+ void *annotDisplayDecideCbkData = NULL);
+
+ // Display part of a page.
+ void displaySlice(OutputDev *out, double hDPI, double vDPI,
+ int rotate, GBool useMediaBox, GBool crop,
+ int sliceX, int sliceY, int sliceW, int sliceH,
+ GBool printing, Catalog *catalog,
+ GBool (*abortCheckCbk)(void *data) = NULL,
+ void *abortCheckCbkData = NULL,
+ GBool (*annotDisplayDecideCbk)(Annot *annot, void *user_data) = NULL,
+ void *annotDisplayDecideCbkData = NULL);
+
+ void display(Gfx *gfx);
+
+ void makeBox(double hDPI, double vDPI, int rotate,
+ GBool useMediaBox, GBool upsideDown,
+ double sliceX, double sliceY, double sliceW, double sliceH,
+ PDFRectangle *box, GBool *crop);
+
+ void processLinks(OutputDev *out, Catalog *catalog);
+
+ // Get the page's default CTM.
+ void getDefaultCTM(double *ctm, double hDPI, double vDPI,
+ int rotate, GBool useMediaBox, GBool upsideDown);
+
+private:
+
+ XRef *xref; // the xref table for this PDF file
+ Object pageObj; // page dictionary
+ Ref pageRef; // page reference
+ int num; // page number
+ PageAttrs *attrs; // page attributes
+ Object annots; // annotations array
+ Object contents; // page contents
+ FormPageWidgets *pageWidgets; // the form for that page
+ Object thumb; // page thumbnail
+ Object trans; // page transition
+ Object actions; // page addiction actions
+ double duration; // page duration
+ GBool ok; // true if page is valid
+};
+
+#endif