summaryrefslogtreecommitdiff
path: root/source/pdf/pdf-form.c
AgeCommit message (Collapse)Author
2017-04-27Include required system headers.Tor Andersson
2016-11-14pdf: Don't pass form UI events to link annotations.Tor Andersson
Don't try handling them both as links and form widgets.
2016-11-03Fix signed/unsigned and size_t/int/fz_off_t warnings.Robin Watts
All seen in MSVC, mostly in 64bit builds.
2016-10-07pdf: Separate functions to read text strings and text streams as UTF-8.Tor Andersson
The stream loading is used only by the JS code loading.
2016-10-07pdf: Remove unneccessary document argument to pdf_to_utf8 etc.Tor Andersson
2016-10-07Remove separate tmp/deleted/changed annotation lists.Tor Andersson
Use a flag in the pdf_annot struct instead. Don't pass pdf_document to annotation edit functions.
2016-09-23Clean up annotation enum names.Tor Andersson
Put them in the PDF name space and separate words with underscores. Remove redundant namespace prefixes in java constants. Device.FLAG_MASK rather than Device.FZ_DEVFLAG_MASK. Use namespace for PDF annotation flag enum.
2016-09-14Add scripts to remove/replace 'static' from functions.Robin Watts
Getting a backtrace out with missing functions makes the backtrace much less useful. Some backtrace routines (such as that used by Memento on Android) are incapable of resolving static functions. We therefore provide 2 scripts (scripts/destatic.sh and scripts/restatic.sh) that respectively remove and replace the 'static' from function definitions. The scripts do not affect "static inline" or "static const" definitions, and they are are restricted to working in the source directory (excluding source/tools), thirdparty/mujs and the platform/{java,android} directories. The transformed source should NOT be checked in. To avoid problems with clashing symbols, some functions are renamed or tweaked slightly in this patch.
2016-07-08Slim pdf_annot struct: remove cached page_ctm field.Tor Andersson
2016-07-08Slim pdf_annot struct: remove cached annot_type and widget_type fields.Tor Andersson
2016-07-08Slim pdf_annot struct: remove cached pagerect field.Tor Andersson
2016-07-06pdf: Drop generation number from public interfaces.Tor Andersson
The generation number is only needed for decryption, and is assumed to be zero or irrelevant for all other uses. Store the original object number and generation in the xref slot, so that we can decrypt them even when the objects have been renumbered, without needing to pass the original object number around through the stream loading APIs.
2016-06-17Use 'size_t' instead of int as appropriate.Robin Watts
This silences the many warnings we get when building for x64 in windows. This does not address any of the warnings we get in thirdparty libraries - in particular harfbuzz. These look (at a quick glance) harmless though.
2016-06-14Fix typos in various parts of the code.Sebastian Rasmussen
2016-03-23Remove internal do/while braces in fz_try macros.Tor Andersson
This has caught a couple of oddities...
2016-02-29Add mutool create tool, and PDF font and image resource creation.Michael Vrhel
Initial framework for creating pdfs This adds a create option to mutool for us to use in working on the API for creating content as well as adding content to existing documents. mutool create: Get page sizes and add them Start the parsing of the contents.txt file which may have multiple page information. Add the pages at the proper sizes. Further work on mutool create_pdf Remove the calls that were being made to the pdf-write device. Clean up several issues with the reading of the page contents. Get the content streams for each page associated with the page->contents Temp. created a pdf_create_page_contents procedure. I will merge this with pdf_create_page as there is significant overlap. Next is to add in the font and image resources and indirect references. Include pdfcreate in build Merge pdf_create_page_contents and pdf_create_page Add support for images in pdfcreate This adds images to the pdf document using a function stolen from pdf-device (send_image). This was renamed pdf_add_image_res and added to pdf-image. Down the road, send-image will be removed. Prior to that, I need to work on making sure that multiple copies of the same image do not end up in the document. Code was also added to create the page resources to point to the proper image in the document. Next fonts will be added in a similar manner, then I will work on computing the md5 sums of image and fonts to ensure only one copy ends up in the document. Then pdf-write will be reworked to use the same code as opposed to its current list of md5 sums that are stored in a device structure. mutool pdfcreate: support for WinAnsiEncoded fonts Added support for very simple fonts (WinAnsiEncoding). Methods added in pdf-font.c. Added first_width and last_width to fz_font_s and stem_v to pdf_font_desc_s. Ran code through memento with simple test of 4 page document creation including an image and a font. Fixed several leaks as well as buffer corruption issues (main changes in pdfcreate). Thanks to Robin for the help with Memento in finding leaks. Added StemV to pdf names as it was needed for the font descriptor creation. Fix for pdf_write_document rename to pdf_save_document Add resource_ids to pdf document structure The purpose of this structure will be to allow the search and reuse of resources when we attempt to add new ones to the document. Fix name changes from recent updates pdf_create branch updated to work with recent changes in master Initial use of hash table for resources To avoid adding in the same resource this adds a resource_tables member to pdf_document. The resource_tables structure consists of multiple fz_hash_table entries, one for each resource type. When an attempt is made to search for an existing resource, the table will be initialized in a brute force search for existing resources. Currently this is only set up for the image resources and accessed through pdf_add_image_res. If a match is found, the reference object is returned. If no match is found NULL is returned and the ref object created in pdf_add_image_res is added into the hash table. In this case, a command line such as create -o output.pdf -f F0:font.ttf -i Im0:image.jpg -i Im1:image1.jpg \\ -i Im2:image.jpg contents.txt will avoid the insertion of two copies of image.jpg into the output PDF document. CID Identity-H Font added for handing ttf This adds a method for adding a ttf to a PDF as a CID font with Identity-H mapping and a ToUnicode entry that is created using FT_Get_Char_Index This takes much care in the creation of the ToUnicode CMap to ensure that the minimum number of entries are created in that we try to use beginbfrange as much as possible before using beginbfchar. The code makes sure to limit the number of entries in a group to 100 and to not cross first-byte boundaries for the CID values as described in the Adobe Technical note 5411. Add missing file pdf-resources.c pdf-resources.c was missing and should have been committed earlier. Added to windows project file. Not sure where else it needs to be added for the other platforms. Clean up names and spacing Make sure that the visible functions have the proper namespace (e.g. pdf_xxxx) Also make sure we have a blank line prior to comment. Be consistent with static function naming in pdf_resources.c pdfwrite make use of image resource fz_hash_table The pdfwrite device now shares the structure that stores the resource images for pdfcreate. With this fix, pdfwrite now avoids duplicating the writing of the same images that are shared across multiple pages. Add missing file pdf-resources.c Initial work toward having pdfwrite use Identity-H Type0 encoding for fonts Finish of CID type0 Identity-H font for pdfwrite This adds in the proper widths which may have been stored in the source font in the width table (parsed from the W entry in the pdf file) or if the free type structure has its own cmap then we can get the width from free type. Widths are restructured into format described in 5.6.3 of PDF spec. Fix issue from conflict merging and multiple define of structure Clean up warnings and make mutool create use simple font
2016-01-20Various formatting cleanups.Tor Andersson
2016-01-05Separate pdf_drop_annots (that drops lists) and fz_drop_annot.Tor Andersson
2016-01-05Clean up trailing whitespace.Tor Andersson
2015-12-28Drop 'jsimp' abstraction and use mujs directly.Tor Andersson
2015-10-14Add proper support for when a combobox widget has options that are 2-element ↵Michael Vrhel
arrays The list box and combo box can have values that are 2-element arrays. The first element is the "export" value and the second element is the value that should be shown in the list box UI. This fix ensures that we get the proper value to show in the UI. Also, it adds the option to get the export values. These are needed if you wish to update the field dictionary's V (value) entry, which is the currently selected values(s). This fix works well with gsview. The other viewers will now display the proper content in their UI, (unlike before this fix) but may need a bit more work to ensure that the proper V (value) is updated with changes in the selections. In addition, we add selection rectangles to the selected list box items.
2015-08-27Support several levels of incremental xrefPaul Gardiner
This fixes bug #696123 by allowing multiple signatures each to be written to the document in a separate incemental update. Add count num_incremental_sections to keep track of the number of incremental sections. Add xref_base, which can be set between 0 and num_incremental_sections inclusive to access different versions of the document. Add disallow_new_increments flag that stops new incremental sections being provoked by the creation of an xref stream. Move the unsaved_sigs list from the document structure to the xref structure. With this commit in place, the lists will never grow beyond length one, but we've maintained the list structure in case other cases need supporting in the future. Add an end offset field to the xref structure, so that during completion of signatures the document length of the various incremental versions of the document are available. Factor out functions for storing unsaved signatures and for checking if an object is an unsaved signature. Do deep copy of objects that require the holding of several versions.
2015-08-27Ensure the unsaved signatures list is held in ascending orderPaul Gardiner
This is work towards bug #696123. It does not fix the bug because, in fact, saving multiple signatures in one go is not permitted (they need to use several incremental saves), but we may as well have the order correctly held.
2015-03-25Fix reference counting mistake in forms support.Robin Watts
I broke this as part of the PDF Name refactoring.
2015-03-24Rework handling of PDF names for speed and memory.Robin Watts
Currently, every PDF name is allocated in a pdf_obj structure, and comparisons are done using strcmp. Given that we can predict most of the PDF names we'll use in a given file, this seems wasteful. The pdf_obj type is opaque outside the pdf-object.c file, so we can abuse it slightly without anyone outside knowing. We collect a sorted list of names used in PDF (resources/pdf/names.txt), and we add a utility (namedump) that preprocesses this into 2 header files. The first (include/mupdf/pdf/pdf-names-table.h, included as part of include/mupdf/pdf/object.h), defines a set of "PDF_NAME_xxxx" entries. These are pdf_obj *'s that callers can use to mean "A PDF object that means literal name 'xxxx'" The second (source/pdf/pdf-name-impl.h) is a C array of names. We therefore update the code so that rather than passing "xxxx" to functions (such as pdf_dict_gets(...)) we now pass PDF_NAME_xxxx (to pdf_dict_get(...)). This is a fairly natural (if widespread) change. The pdf_dict_getp (and sibling) functions that take a path (e.g. "foo/bar/baz") are therefore supplemented with equivalents that take a list (pdf_dict_getl(... , PDF_NAME_foo, PDF_NAME_bar, PDF_NAME_baz, NULL)). The actual implementation of this relies on the fact that small pointer values are never valid values. For a given pdf_obj *p, if NULL < (intptr_t)p < PDF_NAME__LIMIT then p is a literal entry in the name table. This enables us to do fast pointer compares and to skip expensive strcmps. Also, bring "null", "true" and "false" into the same style as PDF names. Rather than using full pdf_obj structures for null/true/false, use special pointer values just above the PDF_NAME_ table. This saves memory and makes comparisons easier.
2015-02-17Add ctx parameter and remove embedded contexts for API regularity.Tor Andersson
Purge several embedded contexts: Remove embedded context in fz_output. Remove embedded context in fz_stream. Remove embedded context in fz_device. Remove fz_rebind_stream (since it is no longer necessary). Remove embedded context in svg_device. Remove embedded context in XML parser. Add ctx argument to fz_document functions. Remove embedded context in fz_document. Remove embedded context in pdf_document. Remove embedded context in pdf_obj. Make fz_page independent of fz_document in the interface. We shouldn't need to pass the document to all functions handling a page. If a page is tied to the source document, it's redundant; otherwise it's just pointless. Fix reference counting oddity in fz_new_image_from_pixmap.
2015-02-17Rename fz_close_* and fz_free_* to fz_drop_*.Tor Andersson
Rename fz_close to fz_drop_stream. Rename fz_close_archive to fz_drop_archive. Rename fz_close_output to fz_drop_output. Rename fz_free_* to fz_drop_*. Rename pdf_free_* to pdf_drop_*. Rename xps_free_* to xps_drop_*.
2014-04-11Add all form field flags. Check flags before marking fields dirty.Tor Andersson
NoExport (and ReadOnly) fields shouldn't mark the document for saving.
2014-03-25Break dependencies on pdf-form.c and pdf-js.cTor Andersson
Split functions out of pdf-form.c that shouldn't be there, and make javascript initialization explicit.
2014-02-25Support text (aka sticky note) annotationsPaul Gardiner
2014-02-14Add function for creating form fields (widgets)Paul Gardiner
This feature is being implemented mostly for the purpose of permitting the addition to a page of invisible signatures. Also change pdf_create_annot to make freshly created annotations printable by default.
2014-01-06fix various MSVC warningsSimon Bünzli
Some warnings we'd like to enable for MuPDF and still be able to compile it with warnings as errors using MSVC (2008 to 2013): * C4115: 'timeval' : named type definition in parentheses * C4204: nonstandard extension used : non-constant aggregate initializer * C4295: 'hex' : array is too small to include a terminating null character * C4389: '==' : signed/unsigned mismatch * C4702: unreachable code * C4706: assignment within conditional expression Also, globally disable C4701 which is frequently caused by MSVC not being able to correctly figure out fz_try/fz_catch code flow. And don't define isnan for VS2013 and later where that's no longer needed.
2013-12-17Bug 694810: Fix crash when clicking on mupdf window after failed page load.Robin Watts
If we have a NULL page, don't attempt to pass events to it.
2013-08-13Signature creationPaul Gardiner
2013-08-02Improve naming consistencyPaul Gardiner
2013-07-29Add support for freetext annotationsPaul Gardiner
This initial commit doesn't entirely complete the task: 1) There are a couple of ucs<->winansi conversions left out, 2) The text displayed by the appearance string can slightly overflow the annotation rectangle.
2013-07-24Fix leak of pdf_field_value.Robin Watts
pdf_js_setup_event strdups the field value, then nothing ever uses it again.
2013-07-22Collect together all code to do with appearance-stream creationPaul Gardiner
2013-07-11Silence a few warnings.Tor Andersson
2013-06-27Move to using a flags bit rather than "Dirty" dict entries.Robin Watts
Correct the naming scheme for pdf_obj_xxx functions.
2013-06-25Update pdf_obj's to have a pdf_document field.Robin Watts
Remove the fz_context field to avoid the structure growing.
2013-06-24Update annotation handling in preparation for incremental updatePaul Gardiner
When incremental update is in place, functions that alter one structure may have the side-effect of altering another: i.e., updating an annotation may require the Annots array or even the page to be cloned. This commit makes the existing annotation code hardy to this eventuallity. It also cleans up a slight mess of the past where not all annotation-altering functions had access to the pdf_annot struture, instead having to work with just the pdf object.
2013-06-20Rearrange source files.Tor Andersson