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NEWS
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Overview of changes between 1.24.0 and 1.24.1
=============================================
- Fix a couple of crashers
- Fix minor pangofc API semantics breakage
- Better handle SFNT fonts in dfont containers
- Improved docs
- Improved Indic shaper for new Unicode 5.1 characters
- Misc bug fixes
- Bugs fixed in this release:
Bug 577952 – Error loading {GDEF,GSUB,GPOS} table 0x6EAD
Bug 578336 – ABI breakage from 1.22 to 1.24 in fontmap field
of PangoFcFont
Bug 556132 – gnome-panel crashed with SIGSEGV in
g_cclosure_marshal_VOID__BOXED()
Bug 571291 – Unicode 5.1 support in pango - Indic Lanuages
Bug 576298 – Fails to link pango-view if --without-x is specified
but cairo has X11 support
Overview of changes between 1.23.0 and 1.24.0
=============================================
- pango-view improvements:
* pango-view -q now works without a X server.
* Ability to save to PS, EPS, PDF, and SVG files. Filetype is
detected from output file extension.
* New options --foreground, --background, and --annotate.
* Now installs a manual page, thanks to help2man.
- PangoFc API changes:
* PangoFcFont now has a "fontmap" property that subclasses can use
at construction time to setup the font->fontmap link.
* New backend-public API:
pango_fc_font_map_find_decoder()
- Misc optimizations
- Build fixes
- Misc bug fixes
- Bugs fixed in this release:
Bug 547963 – man page for pango-view
Bug 502804 – pango-view or pangocairo-view option to annotate
Bug 502801 – per-backend pango-view options
Bug 502805 – pango-view option for foreground/background color
Red Hat Bug 490331 - Crash of galeon in libpango
Bug 523166 – pango-view opens display even when invoked with -q
Bug 567160 – Share cmap cache between PangoFcFont's of the same face
Red Hat Bug 487593 - crash changing language in gdm
Bug 572662 – Remove deprecated GTK+ symbols
Bug 572529 – Poor -I ordering can break build
Overview of changes between 1.22.4 and 1.23.0
=============================================
- Change the PangoFc font loading API to allow for lazy loading of fonts.
- Add private PangoFcFontset that loads fallback fonts as needed.
- Call FcFontMatch() and only if fallback fonts are needed call FcFontSort().
- Optimize HarfBuzz number of malloc calls
- Don't malloc megs of unused memory in HarfBuzz
- Print-out, and parse, numeric styles correctly. Things like
"DejaVu Sans weight=100" parse as font description now.
- New public API:
Add two new public macros:
PANGO_ATTRIBUTE_INDEX_FROM_TEXT_BEGINNING
PANGO_ATTRIBUTE_INDEX_TO_TEXT_END
Add new public enum values:
PANGO_WEIGHT_BOOK
PANGO_WEIGHT_ULTRAHEAVY
PANGO_WEIGHT_THIN
PANGO_WEIGHT_MEDIUM
- Misc bug fixes
- Bugs fixed in this release:
Bug 569763 – pango doesn't like font descriptions without family!
Bug 560792 – Make PangoLayoutLine with line->layout==NULL renderable
Bug 567392 – Abiword crashes in pango when opening document with
certain locales
Bug 566727 – PangoFontsetLazy
Bug 567165 – Apply all pattern matrices
Bug 567934 – Add introspection support inside pango
Bug 549532 – Correction to the sample string for Hindi in
pango-language-sample-table.h
Bug 566726 – Minor optimization
Bug 566941 – Add PANGO_ATTRIBUTE_INDEX_FROM_TEXT_BEGINNING and
PANGO_ATTRIBUTE_INDEX_TO_TEXT_END
Bug 551469 – Fold '@' to '-' when parsing PangoLanguages
Bug 328206 – Update/remove some old files
Bug 166709 – Handle font variants more consistently
Bug 166676 – pango_fc_font_map_finalize
Bug 164001 - pango-querymodules doesn't work uninstalled on win32
Bug 384362 – pango can't select some font styles
Bug 168085 – numeric styles in pango_font_description_to_string()
Bug 529591 – Code related to malayalam is misplaced.
Patch from Rahul Bhalerao
Bug 515807 – Don't bind modules lazily
Bug 512662 – Update check.docs for pango-undeclared.txt
Bug 565644 – Maybe pango_font_descriptions_free is deprecated
Bug 469049 – Fix all compiler warnings
Bug 565379 – pango_font_description_better_match some style attributes
of old_match are not checked
Bug 564877 – pango-engine.h: PANGO_MODULE_PREFIX and G_MODULE_EXPORT
Overview of changes between 1.22.3 and 1.22.4
=============================================
- Misc bug fixes
- Improved docs
- Bugs fixed in this release:
Bug 564644 – Not complete description of the
pango_font_description_better_match function
Bug 563898 – Generated output is not deterministic
Bug 563803 – pango_renderer_finalize fails to call parent finalize
Bug 499626 – Space should be optional after comma in
PangoFontDescription input string
Bug 499624 – Spaces around commas in PangoFontDescription family name
should be trimmed
Bug 563557 – set g_get_prgname() in fc pattern
Bug 563356 – The input area of firefox and the blank width after text
in gnome-menu was stretched too wide, under pango-1.22.3
Bug 562574 – Pangocariowin32 is leaking every cairo font it ever
creates
Overview of changes between 1.22.2 and 1.22.3
=============================================
- Minor bug fix with matrix operations
- Fix build with older compilers
- Bugs fixed in this release:
Bug 561779 – incorrect calculations in pango_matrix_concat
implementation
Bug 560730 – pango 1.22.2 build failure on Solaris 10, too many array
initializers in pango-language.c
Bug 561740 – Use stack allocation for thai_engine_break
Overview of changes between 1.22.1 and 1.22.2
=============================================
- Fix crasher when a PangoFcFontMap was freed before its fonts.
- Mark monospace fonts as monospace in the pangoatsui backend.
- Fix font description parsing to better handle "normal".
- Bugs fixed in this release:
Bug 558254 – Internal reference handling messed up
Bug 558107 – is_monospace always returns FALSE in pangoatsui
Bug 557620 – pango_font_description_from_string not correct
Overview of changes between 1.22.0 and 1.22.1
=============================================
- Fix crasher when freeing PangoLayoutIter's
- Fix loading of bogus OpenType anchor tables
- Fix OpenType CursiveChain positioning
- Misc bug fixes
- Bugs fixed in this release:
Bug 528272 – "Error loading GPOS table 5503" when using katakana
characters
Bug 552107 – Small libtool fixes
Patch by Patryk Zawadzki
Bug 539623 – document that pango_color_parse accepts NULL
Bug 555219 – Memory leak when using pango_layout_iter_copy
Patch from Falk Rohsiepe
Bug 553345 – Japanese pangram.
Patch from Takeshi AIHANA
Overview of changes between 1.21.6 and 1.22.0
=============================================
- Require cairo >= 1.7.6.
- Improved Romanian sample text
- Don't use deprecated glib win32 API
- Misc bug fixes
- Bugs fixed in this release:
Bug 552993 – Romanian pangram
Bug 551865 – Can't change justification of a PangoLayout after first
draw
Bug 551416 - pangowin32-fontcache.c: argument is different type
Overview of changes between 1.21.5 and 1.21.6
=============================================
- Win32 cross-compiling build system fix
- Improve language sample strings.
- Bugs fixed in this release:
Bug 550659 – configure.in ignores a win32 backend only scenario
Bug 549758 – Swedish font sample text could use punctuation
Bug 549522 – New pt_BR pangram for pango
Bug 549520 – fr sample string
Overview of changes between 1.21.4 and 1.21.5
=============================================
- Make the reference the font->fontmap reference weak. Previously all
fontmaps had circular references to their fonts and back, making them
leak instead of being freed upon finalization. Now they all clean after
themselves. There's a slight semantic change though, that a PangoFont does
not keep its fontmap alive anymore, so that's up to the user. But then
again, finalizing fontmaps is not a good idea to begin with.
- Improve pango_language_get_sample_string() to add language sample texts that
are actually usable. Compiled from a variety of sources.
See pango-language-sample-table.h.
- In pango_language_get_sample_string() use default language if provided
language is NULL.
- Update OpenType language-system tags to OpenType 1.5 draft intersected with
ISO639-3 of 2008/08/04.
- New API additions:
Add a minor new public API:
pango_language_get_scripts()
This is what pango_language_includes_script() has been using
internally. Previously one had to call that function over all
possible script values to determine which scripts a language
uses. The new API makes that much easier.
- Bugs fixed in this release:
Bug 549003 – pango_layout_set_height(): layout should not be cleared
unless required
Bug 143542 – PangoFT2Fontmap leak
Bug 314094 – Get rid of poutpourri default sample string
Bug 473806 – Improve pango_language_get_sample_string()
Bug 473805 – Add API enumerating scripts for a language
Bug 470895 – Improve OpenType language tag list
Bug 547432 – Deprecation of pango_(backend)_font_map_create_context()
not clean
Overview of changes between 1.21.3 and 1.21.4
=============================================
- Use cairo_show_text_glyphs() if target cairo surface supports that.
This is done by adding a new PangoRenderer method, draw_glyph_item().
Custom PangoRenderer implementations that delegate to pango_cairo
may want to implement this method if they target PDF files.
- Requires cairo >= 1.7.4 now
- Win32 build improvements
- Justify lines broken by U+2028 LINE SEPARATOR
- Various small fixes and improvements
- New API additions:
New public API:
PangoRenderer::draw_glyph_item()
pango_renderer_draw_glyph_item()
Make layout and layout-line default renderers go through
draw_glyph_item(), which then by default falls back to
draw_glyphs(). The advantage in draw_glyph_item() is that it
has access to the text and cluster information.
New public API, for iterating a PangoGlyphItem:
PangoGlyphItemIter
PANGO_TYPE_GLYPH_ITEM_ITER
pango_glyph_item_iter_copy()
pango_glyph_item_iter_free()
pango_glyph_item_iter_init_start()
pango_glyph_item_iter_init_end()
pango_glyph_item_iter_next_cluster()
pango_glyph_item_iter_prev_cluster()
Make the following previously backend-only API public:
pango_context_new()
pango_context_set_font_map()
This also means that bindings are recommended to allow
instantiation of pango.Context. This was discouraged before.
New public API:
pango_font_map_create_context()
This is equivalent to pango_context_new() followed by an
immediate pango_context_set_font_map(). This change also
deprecates various per-fontmap-type context constructors:
Deprecate pango_cairo_font_map_create_context().
Deprecate pango_fc_font_map_create_context().
Deprecate pango_ft2_font_map_create_context().
Deprecate pango_win32_get_context().
Deprecate pango_xft_get_context().
Deprecate pango_x_get_context().
Language bindings are encouraged to bind
pango.Fontmap.create_context() and remove the create_context()
method from subclass implementations.
- Bugs fixed in this release:
Bug 547303 – pango_layout_get_cursor_pos crashes on certain text
buffers
Fedora Bug 457883 - Sindhi Characters are not supported in
pango [U+097B-U+097F]
Patch from Pravin Satpute
Bug 441654 – prefix fails when more than one base characters (as
conjuncts) present after a half form the next prefix renders
incorrectly
Patch from Rahul Bhalerao
Bug 546534 – pango_cairo_font_map_set_default(NULL) errs
Bug 431394 – Use pango_glyph_item_iter in more places
Bug 377948 – Make pango_glyph_item_iter public
Bug 472625 – Add draw_glyph_item() to PangoRenderer
Bug 540592 – Crash in HB_GSUB_Apply_String with Linux-Libertine font
Bug 540036 – Doesn't link to fontconfig
Bug 380094 – Fix split matra rendering bug for Kannada language
Bug 536017 – Remove SF_MPRE_FIXUP from Sinhala script flags
Patch by Harshula
Overview of changes between 1.21.2 and 1.21.3
==============================================
- Various small fixes and improvements
- Bugs fixed in this release:
Bug 538661 – Improve pango_cairo_context_update_context()
Bug 536190 – Make pango_fc_font_map_clear_cache() public?
Bug 537258 – Add a pango_language_to_string() function
Bug 537257 – pango_language_from_string(NULL) not happy
Bug 537186 – Make PangoFcFont pattern property readable
Overview of changes between 1.21.1 and 1.21.2
==============================================
- Various win32 font handling improvements
- Bugs fixed in this release:
Bug 510299 – OpenType font variants are broken with ATSUI/Cairo
Bug 436363 - Bold and Bold Italic style of MS-Mincho font are not
listed in GtkFontSelection
Bug 523193 – Vista Hebrew, CJK fonts to builtin win32 pango aliases
Patch by Daniel Atallah.
Overview of changes between 1.21.0 and 1.21.1
==============================================
- Partial work to make pango_break() exactly follow Unicode TR#14 and TR#29.
The Grapheme Boundaries and Word Boundaries now work. For word boundaries,
a new member was added to PangoLogAttr. Sentence Boundaries and Line Breaks
to follow in the next release.
- Err if no cairo font backends found
- Misc bug fixes
- New public API:
Add new PangoLogAttr member is_word_boundary, that implements UAX#29's
Word Boundaries semantics. The is_word_start and is_word_end members
will change implementation later on to be consitent with the word
boundaries.
- Bugs fixed in this release:
Bug 531242 – Leak when calculating win32 font coverage
Patch from Daniel Atallah
Bug 530757 – Docs build breaks because of hash sign in URL in <ulink...>
Bug 530685 – Pango no longer using cairo as a backend as of pango 1.19.4
Part of Bug 97545 – Make pango_default_break follow Unicode TR #29
Overview of changes between 1.20.2 and 1.21.0
==============================================
- Require cairo >= 1.6.4.
- Write out HarfBuzz errors as hex.
- Add a section in the docs for bidirectional text.
- Improved hex-box rendering in the cairo backend.
- Add some aliases for <span> tag attributes.
- Preserve current-point around pango_cairo_* functions.
- New public API:
pango_attr_type_get_name()
enum PangoBidiType;
pango_bidi_type_get_type()
pango_bidi_type_for_unichar()
pango_layout_get_baseline()
pango_cairo_create_context()
pango_cairo_font_map_set_default()
- Bugs fixed in this release:
Bug 515432 – Add function to get bidirectional character type of a
unicode character
Patch from Jürg Billeter
Bug 517119 – Add pango_cairo_create_context()
Bug 404416 – pango_layout_get_baseline or something
Bug 474706 – cairo hexbox looks ugly
Bug 490669 – add some <span> attribute aliases
Bug 501334 – Make pango_cairo_[show_]*[_path]() functions preserve
current point
Bug 514617 – Add pango_cairo_font_map_set_default()
Bug 511183 – Add pango_attr_type_get_name()
Overview of changes between 1.20.1 and 1.20.2
==============================================
- Really fix build on OS X.
Overview of changes between 1.20.0 and 1.20.1
==============================================
- Update to Unicode Character Databse 5.1.0. This adds new entries to
the PangoScript enum. Requires glib >= 2.16.3 for the update Unicode
data there, but not bumping the requirement in a stable point release.
- Try making our OS X stuff compile with latest cairo 1.5.x snapshots
that renamed cairo-atsui to cairo-quartz-font, as well as older versions.
- Minor bug fixes.
Overview of changes between 1.19.4 and 1.20.0
==============================================
- New stable release!
- Bugs fixed in this release:
Bug 518084 – Thai is not Virama language
Patch from Theppitak Karoonboonyanan
Overview of changes between 1.19.3 and 1.19.4
==============================================
- Make Win32 backend be able to use Type1 fonts
- Fixed blocker bug with pango_layout_set_height() and positive height.
- Fixed small leak in ATSUI backend.
- Improved docs.
- Bugs fixed in this release:
Bug 511172 – pango_layout_set_height() with positive height always
shows at least two lines
Bug 515484 – Uniscribe interface handles surrogate
pairs incorrectly
Bug 515484 – Pango on Windows is missing Type 1
font support
Patch from Adrian Johnson.
Bug 517083 – pango modules: wrong fallback adding code?
Bug 515484 – Variable is initialized twice
Bug 504810 – Samvruthokaram (combination of U+0D41 and U+0D4D) is not
rendered correctly
Patch from Praveen A
Bug 496244 – Don't use freetype-config, use pkg-config
Bug 512566 – dont' use deprecated macro
Patch from Christian Persch
Bug 512473 – [patch] gtk-doc warnings
Overview of changes between 1.19.2 and 1.19.3
==============================================
- pango_layout_get_pixel_extents() and pango_layout_line_get_pixel_extents()
now round extents to pixels inclusively. That is, pass both ink_rect and
logical_rect as first argument to pango_extents_to_pixels().
- Rename pango_extents_to_pixels() function arguments from @ink_rect and
@logical_rect to @inclusive and @nearest. Given that this API is a
fairly new addition and not commonly used, language bindings are
encouraged to update their argument names accordingly. Moreover, they
are encouraged to wrap this function as two different calls:
extents_to_pixels_inclusive() and extents_to_pixels_nearest(), or
similar conventions that best reflect their native language.
- HarfBuzz was relicensed to a more generous and simpler license.
Adapt. See pango/opentype/COPYING for the new license which is
LGPL-compatible.
- New public API:
pango_layout_set_height()
This sets the height to which the #PangoLayout should be ellipsized at.
There are two different behaviors, based on whether @height is positive or
negative.
If @height is positive, it will be the maximum height of the layout. Only
lines would be shown that would fit, and if there is any text ommitted, an
ellipsis added. At least one line is included in each paragraph regardless
of how small the height value is. A value of zero will render exactly one
line for the entire layout.
If @height is negative, it will be the (negative of) maximum number of lines
per paragraph. That is, the total number of lines shown may well be more
than this value if the layout contains multiple paragraphs of text. The
default value of -1 means that first line of each paragraph is ellipsized.
Height setting only has effect if a positive width is set on @layout and
ellipsization mode of @layout is not %PANGO_ELLIPSIZE_NONE.
The behavior is undefined if a height other than -1 is set and ellipsization
mode is set to %PANGO_ELLIPSIZE_NONE, and may change in the future.
There are still bugs remaining to be fixed, notably bug 511172 (which will
be fixed before 1.20), and bug 511171 (which will be fixed in a future
version).
- New command-line arguments to pango-view: --height and --single-par.
- Make the following symbols available to engines:
PANGO_IS_OT_INFO
PANGO_IS_OT_RULESET
PANGO_OT_INFO
PANGO_OT_RULESET
PANGO_TYPE_OT_INFO
PANGO_TYPE_OT_RULESET
pango_ot_info_get_type
pango_ot_ruleset_get_type
- Bugs fixed in this release:
Bug 508002 – change pango_layout_pixel_extents() to round logical rect
to be inclusive
Bug 469313 – Add pango_layout_set_height()
Bug 508179 – PangoGlyphUnit confusion
Bug 508381 – indent and center alignment don't mix
Bug 508007 – Add option for single-paragraph mode to pango-view
Bug 506284 – docs typo for pango_coverage_unref
Patch from Christian Persch
Bug 504802 – build failure: No rule to make target
`pango-querymodules.1', needed by `all-am'. Stop.
Bug 504585 – pango-querymodules.1 syntax error
Red Hat Bug 426178: gtkdoc-scan fails on pango
Overview of changes between 1.19.1 and 1.19.2
==============================================
- Render a crossed box for each invalid input byte to pango_layout_set_text().
Previously we rendered an ASCII question mark instead. The crossed box has
a glyph of value of PANGO_GLYPH_INVALID_INPUT.
- Use pkg-config to detect cairo features [Benjamin Otte]
- Improved docs. Particularly, examples/cairo*.c have inline docs now.
- New public macro:
PANGO_GLYPH_INVALID_INPUT
- Bugs fixed in this release:
Bug 502926 – pango-1.16.4 configure bug: can fail to accept cairo
Bug 399573 – replace strtoul in pango-markup.c with pango_scan_int()
Bug 478914 – Use something invalid instead of '?' when validating
input text
Bug 501938 – Arabic shaping broken with vertical layout with
vertical-hint=line
Bug 501575 – Compile errors
Patch from Jens Granseuer
Overview of changes between 1.19.0 and 1.19.1
==============================================
- Various cleanup in the HarfBuzz code and merging with upstream/Qt changes.
- Built-in pango.aliases file for Win32 default aliases.
- Document cairo examples and misc documentation improvements.
- Bugs fixed in this release:
Bug 485536 – underline_position can be zero
Bug 500549 – pangocairo.h should include pango.h and cairo.h
Bug 492517 – Built-in default aliases file
Bug 495091 – pango-utils.c:variable is declared at middle of block
Overview of changes between 1.18.3 and 1.19.0
==============================================
- Update list of languages to that of fontconfig-2.4.91.
- Various optimizations, making rendering the same Pango layout using
changing cairo matrices much faster.
- Make sure all boxed type copy/free functions accept NULL as legitimate
input. Previously most were g_return_[val_]if_fail()ing it. This is
mostly for convenience when writing code in C.
- Apply 'vkrn' GPOS feature in vertical writing.
- In pangofc, set "pangoversion" in pattern passed to fontconfig,
such that font configuration can condition on being driven by Pango
or not.
- Various optimizations and cleanups in the OpenType Layout engine,
aka HarfBuzz.
- Changed APIs:
* All PangoAttribute constructors are changed to initialize the
attribute to the range [0..MAXUINT]. The range was undefined
previously. All custom attribute constructors are recommended
to call the new pango_attribute_init() to do the same.
* Public API chance: Mark the following types as abstract:
PangoFont
PangoFontFace
PangoFontFamily
PangoFontMap
PangoFcFont
PangoFcFontMap
PangoContext may be marked so in the future too.
* Make following macros public. Previously they were only
defined for backend/engine implementations.
PANGO_GLYPH_EMPTY
PANGO_GLYPH_UNKNOWN_FLAG
PANGO_GET_UNKNOWN_GLYPH()
- New public API:
* Convenience for initializing custom attributes:
pango_attribute_init()
* Adding boxed type for PangoGlyphItem:
PANGO_TYPE_GLYPH_ITEM
pango_glyph_item_copy()
pango_glyph_item_get_type()
* Add missing copy function for a boxed type in C:
pango_layout_iter_copy()
* Add missing getter:
pango_layout_iter_get_layout()
* Convenience for writing custom PangoRenderer's:
pango_renderer_get_layout()
pango_renderer_get_layout_line()
* PangoFc extensions to fontconfig's pattern syntax:
PANGO_FC_GRAVITY
PANGO_FC_VERSION
- Bugs fixed in this release:
Bug 490661 – Pango Markup: Link to font_desc syntax explanation
Based on patch from Chris Toshok
Bug 489909 – pango_cairo_update_context() should ignore matrix
translation
Bug 488840 – harfbuzz: protect against ligid overflow
Bug 486932 – Apply vkrn GPOS feature in vertical writing
Bug 486951 – ChangeLog.pre-1-18
Bug 485621 – Get rid of freetype memory allocator in harfbuzz
Bug 485566 – Cache one OpenType Buffer
Bug 485559 – Boston Summit HarfBuzz optimizations
Bug 481537 – compiler warning fixes
Patch from Kjartan Maraas
Bug 478865 – Drastically reduce number of PangoFont objects created
for rotating text
Bug 472924 – Mark some classes abstract
Bug 472629 – Add pango_renderer_get_layout(_line)
Bug 472303 – Make PANGO_GLYPH_EMPTY and PANGO_GLYPH_UNKNOWN_FLAG public
Bug 471601 – Pass pango version information to fontconfig
Bug 471577 – GBoxed GType for PangoGlyphItem
Bug 471571 – Add pango_layout_iter_get_layout()
Bug 471568 – Optimizations in _pango_cairo_update_context()
Bug 469641 – Initialize attribute start/end to [0..MAXUINT]
Overview of changes between 1.18.2 and 1.18.3
==============================================
- Two OpenType engine fixes. Makes Nafees Nastaliq font
work great, and avoids warnings with some other fonts.
- Fix minor leak in win32 backend.
- Bugs fixed in this release:
Bug 483600 – Leak of font family name in
pango_win32_font_description_from_logfont(w)
Patch from Daniel Atallah
Overview of changes between 1.18.1 and 1.18.2
==============================================
- Require libthai >= 0.1.9 for enabling thai-lang module
- Misc bug fixes
- Bugs fixed in this release:
Bug 474708 – pangocairo leaks memory
Bug 472891 – Bad consistency check in pango_get_log_attrs
Patch from Mathias Hasselmann
Bug 302952 – The placement of a diacritic marks for an arabic ligature
is not correct
Bug 410152 – testboundaries test fails
Overview of changes between 1.18.0 and 1.18.1
==============================================
- Misc bug fixes, including fix for an infinite-loop bug.
- Bugs fixed in this release:
Bug 470042 – missing Macedonian OT tag
Patch from Denis Jacquerye
Bug 468953 – pango-renderer.c: using function without prototype
Bug 463430 – Gets stuck while "formatting message"
Overview of changes between 1.17.5 and 1.18.0
==============================================
- Make pango_script_for_unichar() just call g_unichar_get_script(),
and document that PangoScript and GUnicodeScript are interchangeable
enumerations.
- Misc bug fixes
- Bugs fixed in this release:
Bug 348348 – Add a way to get the script name of a gunichar
Bug 451682 – Cursor positioning for Sinhala is broken
Based on patch from Harshula
Bug 462137 – memory corruption in pango_default_break
Bug 462420 – Clicking on pixbuf should move the cursor to the position
nearest to the click point
Bug 462630 – pango_cairo_context_set_font_options() and some others
don't have a Since: tag
Bug 464183 – Minimum tab width enforcement in pango-layout breaks
TabArray positions
Patch by David Trowbridge
Bug 464270 – ellipsize doesn't work consistent
Bug 465174 – TextView is ignoring multiple consecutive \t's
Bug 466755 – pango hangul is crashing in gnome-about because it is
failing to retrieve a font.
Bug 467056 – Shape attribute handling is not consistent
Bug 467077 – Remove special-case for shape attribute in
pango_layout_line_index_to_x()
Overview of changes between 1.17.4 and 1.17.5
==============================================
- Export PangoCairoFont and cleanup various standard macros.
- Bugs fixed in this release:
Bug 150883 – Unicode LRO defect
Bug 449482 – Build error when xft not present
Part of Bug 347236 – provide pango_cairo_font_get_scaled_font
Overview of changes between 1.17.3 and 1.17.4
==============================================
- Refactored the ATSUI font backend and install pangoatsui.h
that has a single function pango_atsui_font_get_atsu_font_id() and
a couple of types.
- Bugs fixed in this release:
Bug 451547 – FAIL: runtests.sh
Bug 449543 - Ship pangoatsui.h
Overview of changes between 1.17.2 and 1.17.3
==============================================
- Extensive pangocairo internal code refactoring and cleanup
- New public API:
pango_font_face_is_synthesized()
pango_cairo_font_get_scaled_font()
pango_cairo_font_map_new_for_font_type()
pango_cairo_font_map_get_font_type()
- New engine macros:
PANGO_OT_TAG_MAKE()
PANGO_OT_TAG_MAKE_FROM_STRING()
- New PangoFontFace method is_synthesized.
- Misc bug fixes
- Bugs fixed in this release:
Bug 337593 – move glyph extents code (and cache) from
pangocairo-*font.c into pangocairo-font.c
Bug 347235 – Add pango_cairo_font_map_get_font_type
Bug 347236 – provide pango_cairo_font_get_scaled_font
Bug 353291 – Provide pango_cairo_font_map_new_for_font_type
Bug 438801 – underline should add "error" type.
Bug 440588 – Add pango_font_face_is_synthesized()
Bug 445832 – pango_cairo_update_layout() always invalidates layout
Bug 446018 – Bus error in the pango_ot_tag_from_language()
Bug 446355 – the parsing with pango_parse_markup is not coherent
Bug 447189 – fonts.c: pango_font_face_is_synthesized returns NULL
Bug 447568 – improve docs on what absolute size means
Bug 448342 – pango_layout_index_to_line_x() counts lines from 1
Overview of changes between 1.17.1 and 1.17.2
==============================================
- Rename recently added pango_ot_ruleset_get_for() to
pango_ot_ruleset_get_for_description().
- New engine API: pango_ot_ruleset_new_from_description().
- Treat Unknown script like Common and other non-"real" scripts.
[Martin Hosken]
- Misc typo fixes [Peter Moulder]
- Bugs fixed in this release:
Bug 443206 – PANGO_SCRIPT_UNKNOWN should not cause a run break
Patch from Martin Hosken
Overview of changes between 1.17.0 and 1.17.1
==============================================
- Ported the rest of OpenType shapers to the new OpenType APIs and
added standard features to them: Hebrew, Indic, Khmer, Thai, and Tibetan.
- Added N'Ko support to the Arabic module. [Eugeniy Meshcheryakov]
- Small Indic module fix for Malayalam.
- Fixed font metrics returned by the ATSUI backend. [Richard Hult]
- Make itemization use pango_language_get_default() if context has no
language set on it. Ditto for pango_context_get_metrics() if both
input language and context language are NULL.
- Improved documentation on vertical text, also added stability note
to those parts of Pango API that are not indefinitely stable (shaper
and language engine APIs).
- Misc bug fixes.
- New OpenType engine API:
pango_ot_ruleset_get_feature_count()
- Bugs fixed in this release:
Bug 357790 – Rendering problem for malayalam consonant RA (U+0D30)
Bug 385168 – indic, khmer, and tibetan modules don't apply ccmp
Bug 385477 – kern feature is not supported in OpenType layout for Tibetan.
Bug 433805 - [Atsui] Approximate char/digit width width often 0
Bug 436699 – N'Ko support
Bug 438705 – Test runs non-existent "/bin/bash" on HP-UX 11.11
Bug 438814 – synaptic crash with pango 1.17.0
Bug 440603 – Minor ABI change
Overview of changes between 1.16.4 and 1.17.0
==============================================
General:
- Text justification. A simple justification algorithm is implemented
that tries to justify by expanding spaces in the line, and if none
found, by adjust letter spacing. [Based on patch by Mathias
Hasselmann]
- The pango_script_get_sample_language() function is modified to use
the value of environment variables PANGO_LANGUAGE or LANGUAGE
(checked in that order) to make guess better languages for scripts.
The env var should be a list of language tags, like "en:fa" for
example where in effect makes Pango choose Persian (fa) fonts
instead of Arabic (ar) fonts when a run of text in the Arabic script
is found in an otherwise non-Arabic layout.
This trick is also useful for East Asian languages. For example a
Japanese user that cannot set her primary language to Japanese can
still set PANGO_LANGUAGE="ja" and Pango will map CJK characters to
Japanese.
The LANGUAGE env var is a standard gettext variable listing
languages the user wants to receive UI translated messages in.
However, since most packages don't provide separate English
translations, setting LANGUAGE="en:ja" doesn't have the intended
effect and UI messages will be shown in Japanese. For these
situations one can use LANGUAGE="en:C:ja". Pango skips the special
language tag 'C'.
- Simplified embedded-shape rendering with pangocairo backends do.
[Richard Hult]
- New header file: Moved PangoLanguage APIs into its own header
pango-language.h, which is included from pango-types.h.
- ATSUI backend now lists synthesized italic faces like other
- Misc optimizations and fixes.
OpenType Layout Engine Improvements:
- Vertical glyph variants are not selected in vertical text if the
font supports them.
- Instead of hardcoded OpenType script tag in each module, and using
Default Language System unconditionally, Pango will now find and use
the script/lang-sys pair that best matches the detected script and
language of a run of text. Moreover, it also applies the OpenType
'locl' feature.
These, plus the PANGO_LANGUAGE env var, give font designers and
users lots of options to provide/choose language-specific glyph
variants.
Only basic, arabic, and syriac modules updated to take advantage of
the new support so far.
New pango-view command line options:
--align
--justify
--language
Public API Changes:
- New public pangocairo API:
PangoCairoShapeRendererFunc
pango_cairo_context_set_shape_renderer()
pango_cairo_context_get_shape_renderer()
These are used by the default pangocairo renderer to render shape
attributes (see examples/cairoshape.c). Cairo-based PangoRenderer
implementations outside Pango may want to implement the draw_shape()
method similarly to provide compatibility with these new APIs. (See
bug #437533 for GdkPangoRenderer for example.)
- Other public API changes:
New is_expandable_space member in PangoLogAttr
New macro PANGO_UNITS_ROUND()
- New OpenType engine API. These are engine API, for use by Pango
modules, and typically need not to be bound by language bindings:
PANGO_OT_NO_FEATURE
PANGO_OT_NO_SCRIPT
PANGO_OT_TAG_DEFAULT_SCRIPT
PANGO_OT_TAG_DEFAULT_LANGUAGE
PangoOTFeatureMap
PangoOTRulesetDescription
pango_ot_ruleset_get_for()
pango_ot_ruleset_new_for()
pango_ot_ruleset_maybe_add_feature()
pango_ot_ruleset_maybe_add_features()
pango_ot_ruleset_description_hash()
pango_ot_ruleset_description_equal()
pango_ot_ruleset_description_copy()
pango_ot_ruleset_description_free()
pango_ot_tag_from_script()
pango_ot_tag_to_script()
pango_ot_tag_from_language()
pango_ot_tag_to_language()
- Bugs fixed in this release:
Bug 64538 – pango_layout_set_justify() doesn't work
Bug 325714 – Pango should respect $LANGUAGE
Bug 414264 – Pango vertical writing support is different with real
CJK usage.
Bug 416515 – Time is not aligned with date on vertical panel
Bug 429397 – Updated MS Mincho/Gothic are not listed in font dialog
properly on Vista/
Bug 433805 – [Atsui] Approximate char/digit width width often 0
(worked around)
Bug 434160 - [atsui] Italic versions of some faces can't be created
Bug 435709 – pango_cairo_context_[sg]et_shape_renderer()
Bug 355789 – Pango misaligns word-wrapped text due to trailing
whitespace
Bug 436154 – Error building the pango.modules file while cross
compiling
Bug 436988 – Adding PangoScript to PangoAnalysis
Bug 437534 – pango_language_includes_script is buggy
Overview of changes between 1.16.3 and 1.16.4
==============================================
- Add new configure option --disable-doc-cross-references and make
sure releases are made using it. Distributions are encouraged to
build with --enable-gtk-doc such that their Pango docs correctly
cross reference glib and cairo docs.
- Bugs fixed in this release:
Bug 432991 – developer docs for libpango are broken
Overview of changes between 1.16.2 and 1.16.3
==============================================
- Quantize kerning value if metrics hinting is on. This greatly improves
screen text rendering with certain fonts like DejaVu Sans.
See: http://behdad.org/blog/mces/image/metricshinting-kerning.png
- Improved hex-box positioning in the cairo backend
Overview of changes between 1.16.1 and 1.16.2
==============================================
- Fixed various bug in the OpenType Layout code (HarfBuzz)
- Improved documentation
- Improved ATSUI backend
- Misc build system fixes
- Bugs fixed in this release:
Bug 417946 – pangowin32-fontmap.c:using function without prototype
Bug 419262 - Don't create coverage every time it's asked for
Overview of changes between 1.16.0 and 1.16.1
==============================================
- Improved Win32 backend: The Win32 backend has been
updated to always require Uniscribe at compile-time (it still
is optional at run-time), and to use the wide-character variants
of Windows APIs which improves the backend in many ways. The
1.16.0 release is obsolete as far as the Win32 backend is
concerned, and official DLLs were not built for it.
- Misc build system fixes
- Bugs fixed in this release:
Bug 110521 – can't find bold and/or italic fonts on win32
Bug 120195 – there are some functions in pangowin32-fontmap.c that
might maybe should be static
Bug 407315 – Use wide character Win32 API in the pangowin32 code
Bug 412654 – SED variable undefined in the `libtool --config' output
used by configure
Bug 414297 – Fails to build with --enable-static
--with-included-modules in thai lang module
Patch from Loïc Minier
Overview of changes between 1.15.6 and 1.16.0
==============================================
- Improved docs, with an object hierarchy and cross references to glib and
cairo docs now (may require rebuilding the docs to correctly detect glib
and cairo prefixes).
- Improved font selection for space characters
- Misc build system fixes
- Bugs fixed in this release:
Bug 407087 – autogen.sh wants automake-1.7
Bug 409212 – Missing link flag prevents build with "-z defs" ld flags
Patch from Loïc Minier
Bug 355987 – choosing font/shaper for spaces breaks Arabic runs on
spaces
Overview of changes between 1.15.5 and 1.15.6
==============================================
- Fix possible crasher in win32 font selection [Owen Taylor]
- Misc build fixes.
- Bugs fixed in this release:
Bug 399738 – pango 1.15.5 won't compile on Mac OS X: 'FC_HINT_STYLE'
undeclared (first use in this function)
Bug 404295 – Crash initializing pango-win32 fontmap
Overview of changes between 1.15.4 and 1.15.5
==============================================
- Fix the "menu accels are two chars wide" bug that was introduced in 1.15.4
- Respect FC_HINT_STYLE in the ft2 backend. Patch has been in Fedora for ages.
- Require automake 1.9