changelog.pre-1-18

Pango is a library for layout and rendering of text, with an emphasis on internationalization. Pang

2007-05-15  Behdad Esfahbod  <[e-mail]>

	* modules/indic/indic-fc.c (indic_engine_shape), (create):
	Port to new OpenType APIs.

2007-05-15  Behdad Esfahbod  <[e-mail]>

	Bug 436699 – N'Ko support
	Patch by Eugeniy Meshcheryakov

	* modules/arabic/arabic-fc.c (create):
	* modules/arabic/arabic-ot.c (Get_Joining_Class):
	Add N'Ko support to the Arabic module.

2007-05-15  Richard Hult  <[e-mail]>

	Bug 433805 - [Atsui] Approximate char/digit width width often 0

	* pango/pangocairo-atsuifont.c:
	(pango_cairo_atsui_font_get_metrics): Improve the metrics so it really
	is average instead of max glyph width. Also keep the metrics per 
	language in the font so it's not constantly recreated.
	(pango_cairo_atsui_font_describe_absolute): Implement.

	* pango/pangocairo-atsuifontmap.c: Set default resolution.

2007-05-15  Behdad Esfahbod  <[e-mail]>

	* pango-view/Makefile.am: Add various test txt files recently
	added.

	* pango-view/test-mixed.markup: A language-tagged version of
	test-mixed.txt.

2007-05-14  Behdad Esfahbod  <[e-mail]>

	* === Released 1.17.0 ===

	* configure.in: Version 1.17.0

	* NEWS: Updated.

2007-05-14  Behdad Esfahbod  <[e-mail]>

	Bug 325714 – Pango should respect $LANGUAGE

	* pango/pango-language.c (pango_language_matches),
	(parse_default_languages), (_pango_script_get_default_language),
	(pango_script_get_sample_language):
	Make pango_script_get_sample_language() use the value of env var
	PANGO_LANGUAGE or LANGUAGE (checked in that order) to make better
	guesses.  The env var should be a list of language tags, like "en:fa"
	for example where makes Pango choose Persian (fa) fonts instead of
	Arabic (ar) fonts...

2007-05-14  Behdad Esfahbod  <[e-mail]>

	* pango/pango-language.c (pango_script_get_sample_language):
	* pango/pango-script.c: Move pango_script_get_sample_language()
	from pango-script.c to pango-language.c.  Fits better.

2007-05-14  Behdad Esfahbod  <[e-mail]>

	Part of Bug 325714 – Pango should respect $LANGUAGE
	Bug 414264 – Pango vertical writing support is different with real
	CJK usage.

	* modules/arabic/arabic-fc.c (arabic_engine_shape):
	* modules/basic/basic-fc.c (basic_engine_shape):
	* modules/syriac/syriac-fc.c (syriac_engine_shape):
	Remove fallback_shape() paths.  Remove get_ruleset().
	Use pango_ot_ruleset_get_for(), that correctly works for multiple
	languages.  Also makes basic shaper apply the 'vert' feature for
	vertical text.  Removes a net 500 lines.

	Other OpenType modules need to be ported over time, however some
	extensions may be needed.  For example, the Hebrew shaper uses
	fallback code if no GPOS tables are available.  Currently using
	pango_ot_ruleset_get_for() one cannot see which features were
	found.

2007-05-14  Behdad Esfahbod  <[e-mail]>

	Part of Bug 414264 – Pango vertical writing support is different with
	real CJK usage.

	* pango-view/test-mixed.txt: Add a line of Japanese text that
	has brackets that should be rotated in vertical text.

2007-05-14  Behdad Esfahbod  <[e-mail]>

	Part of Bug 325714 – Pango should respect $LANGUAGE

	* pango/pango-ot.h:
	* pango/pango-ot-ruleset.c (pango_ot_ruleset_get_for),
	(pango_ot_ruleset_description_hash),
	(pango_ot_ruleset_description_equal),
	(pango_ot_ruleset_description_copy),
	(pango_ot_ruleset_description_free):
	Add new engine API:

		PangoOTRulesetDescription
		pango_ot_ruleset_get_for()
		pango_ot_ruleset_description_hash()
		pango_ot_ruleset_description_equal()
		pango_ot_ruleset_description_copy()
		pango_ot_ruleset_description_free()
	
	The main addition is pango_ot_ruleset_get_for() that
	takes a ruleset description, ie. script/language and list
	of GSUB/GPOS features to apply, and returns a ruleset.
	It manages all the work to cache rulesets, so modules
	don't have to do that anymore.  Given that modules do not
	deal with just one ruleset anymore (because we want to
	respect language, and allow user-selected features), this
	makes their life way easier.

	* docs/pango-sections.txt:
	* docs/tmpl/opentype.sgml:
	Update.

2007-05-14  Behdad Esfahbod  <[e-mail]>

	* pango/pango-ot-buffer.c (pango_ot_buffer_get_glyphs),
	(pango_ot_buffer_output):
	* pango/pango-ot-ruleset.c (pango_ot_ruleset_substitute),
	(pango_ot_ruleset_position):
	* pango/pango-ot.h:
	Mark some arguments const.

2007-05-13  Behdad Esfahbod  <[e-mail]>

	Part of Bug 325714 – Pango should respect $LANGUAGE

	* pango/pango-ot.h:
	* pango/pango-ot-private.h:
	* pango/pango-ot-tag.c (pango_ot_tag_from_script),
	(pango_ot_tag_from_language):
	* pango/pango-ot-info.c (pango_ot_info_find_script),
	(pango_ot_info_find_language), (pango_ot_info_find_feature),
	(pango_ot_info_list_languages), (pango_ot_info_list_features):
	* pango/pango-ot-ruleset.c (pango_ot_ruleset_new),
	(pango_ot_ruleset_new_for), (pango_ot_ruleset_add_feature),
	(pango_ot_ruleset_maybe_add_feature),
	(pango_ot_ruleset_maybe_add_features):
	Add new engine API:

		PANGO_OT_NO_FEATURE
		PANGO_OT_NO_SCRIPT
		PANGO_OT_TAG_DEFAULT_SCRIPT
		PANGO_OT_TAG_DEFAULT_LANGUAGE
		pango_ot_ruleset_new_for()
		pango_ot_ruleset_maybe_add_feature()
		pango_ot_ruleset_maybe_add_features()
	
	Using pango_ot_ruleset_new_for() and
	pango_ot_ruleset_maybe_add_features() drastically simplifies ruleset
	building in modules, and does correct script and language selection
	too.  Modules need to be updated to use it though.

	* docs/pango-docs.sgml:
	* docs/pango-sections.txt:
	* docs/tmpl/opentype.sgml:
	Update.

2007-05-13  Behdad Esfahbod  <[e-mail]>

	* pango-view/viewer-render.c (do_output), (parse_options):
	Add --language.

2007-05-10  Behdad Esfahbod  <[e-mail]>

	* modules/arabic/arabic-fc.c (maybe_add_gsub_feature),
	(maybe_add_gpos_feature), (get_ruleset):
	* modules/basic/basic-fc.c (get_ruleset):
	* modules/hebrew/hebrew-fc.c (maybe_add_gsub_feature),
	(maybe_add_gpos_feature), (get_ruleset):
	* modules/indic/indic-fc.c (maybe_add_GSUB_feature),
	(maybe_add_GPOS_feature):
	* modules/khmer/khmer-fc.c (maybe_add_GSUB_feature),
	(maybe_add_GPOS_feature):
	* modules/syriac/syriac-fc.c (maybe_add_gsub_feature),
	(maybe_add_gpos_feature), (get_ruleset):
	* modules/thai/thai-ot.c (maybe_add_gsub_feature),
	(maybe_add_gpos_feature), (thai_ot_get_ruleset),
	(lao_ot_get_ruleset):
	* modules/tibetan/tibetan-fc.c (maybe_add_GSUB_feature),
	(maybe_add_GPOS_feature):
	Use PANGO_OT_DEFAULT_LANGUAGE and PANGO_OT_ALL_GLYPHS instead
	of hardcoded 0xFFFF.

2007-05-10  Behdad Esfahbod  <[e-mail]>

	* ChangeLog.pre-1-16: Split ChangeLog.

2007-05-10  Behdad Esfahbod  <[e-mail]>

	* pango/Makefile.am:
	* pango/pango-ot.h:
	* pango/pango-ot-tag.c (pango_ot_tag_from_script),
	(pango_ot_tag_to_script), (lang_compare_first_component),
	(pango_ot_tag_from_language), (pango_ot_tag_to_language):
	New public API:

		PANGO_OT_DEFAULT_SCRIPT
		pango_ot_tag_from_script()
		pango_ot_tag_to_script()
		pango_ot_tag_from_language()
		pango_ot_tag_to_language()

	* tests/Makefile.am:
	* tests/test-ot-tags.c:
	Test case for new functions.

	* pango/pangoft2.def:
	* docs/pango-docs.sgml:
	* docs/pango-sections.txt:
	* docs/tmpl/main.sgml:
	* docs/tmpl/opentype.sgml:
	Updated.

2007-05-10  Behdad Esfahbod  <[e-mail]>

	Bug 437534 – pango_language_includes_script is buggy

	* pango/pango-language.c (lang_compare_first_component),
	(lang_info_compare), (script_for_lang_compare),
	(pango_language_includes_script): Fix script_for_lang table lookup.

2007-05-10  Behdad Esfahbod  <[e-mail]>

	* pango/pangofc-fontmap.c (pango_fc_font_description_from_pattern),
	(pango_fc_face_describe): Don't set gravity in
	pango_fc_font_description_from_pattern() if it was not set on the
	pattern.  This is a bit different from other properties, but that
	really is how gravity works (unlike say weight that not having it said
	means normal weight).

2007-05-09  Behdad Esfahbod  <[e-mail]>

	* pango/pango-script-lang-table.h:  Update from latest fontconfig
	sources.

	* tools/gen-script-for-lang.c (scripts_for_line): Make it handle
	PANGO_SCRIPT_UNKNOWN.

2007-05-09  Behdad Esfahbod  <[e-mail]>

	* pango/pango-language.c (script_for_lang_compare),
	(pango_language_includes_script):
	* pango/pango-script.c: Move pango_language_includes_script() from
	pango-script.c to pango-language.c that it belongs.

2007-05-08  Behdad Esfahbod  <[e-mail]>

	* pango/pango-matrix.h: Minor include reordering.

2007-05-08  Behdad Esfahbod  <[e-mail]>

	* pango/Makefile.am:
	* pango/pango-script.h:
	* pango/pango-types.h:
	* pango/pango-utils.c:
	* pango/pango-language.c:
	* pango/pango-language.h:
	Move PangoLanguage stuff into pango-language.[ch]

2007-05-08  Behdad Esfahbod  <[e-mail]>

	Bug 436988 – Adding PangoScript to PangoAnalysis

	* pango/pango-item.h:
	* pango/pango-context.c (itemize_state_add_character):
	Add a 'script' member to PangoAnalysis.  It's added as a guint8
	in the padding available in that struct, though it's value is a
	PangoScript.

	* pango/pangox.c (itemize_string_foreach):
	Update.

2007-05-08  Behdad Esfahbod  <[e-mail]>

	Bug 416515 – Time is not aligned with date on vertical panel

	* pango/pango-context.c (itemize_state_init),
	(itemize_state_update_for_new_run): centered_baseline should only
	be set from context->resolved_gravity and never changed through
	markup.  This means that pango_context_set_base_gravity has no
	equivalent markup.  Doesn't sound limiting to me: you need to rotate
	the layout to get real vertical, so it's not just a matter of markup
	anyway.  At least not at this point.

2007-05-07  Behdad Esfahbod  <[e-mail]>

	Bug 436154 – Error building the pango.modules file while cross
	compiling

	* modules/Makefile.am: Make local pango.module generation work with
	cross-compilation.

2007-05-05  Richard Hult  <[e-mail]>

	Bug 434160 - [atsui] Italic versions of some faces can't be created

	* pango/pangoatsui-fontmap.c:
	* pango/pangoatsui-private.h:
	* pango/pangocairo-atsuifont.c: Follow the other backends and create
	italic faces when they are not available. Apply synthetic italic
	in two cases, when the font manager hands out italic faces that are
	not in fact italic, and for the ones we've created ourselves.

2007-05-04  Behdad Esfahbod  <[e-mail]>

	Bug 435709 – pango_cairo_context_[sg]et_shape_renderer()

	* pango/pangocairo.h:
	* pango/pangocairo-context.c:
	* pango/pangocairo-render.c:
	New API

		PangoCairoShapeRendererFunc and
		pango_cairo_context_[sg]et_shape_renderer() 

	* docs/pango-sections.txt, docs/tmpl/pangocairo.sgml: Document new API.

	* examples/Makefile.am, examples/cairoshape.c: New example to show off
	new API/feature.

2007-05-04  Behdad Esfahbod  <[e-mail]>

	* pango/Makefile.am:
	* pango/pangocairo-context.c:
	* pango/pangocairo-fontmap.c:
	Rip non-fontmap stuff from pangocairo-fontmap.c into
	pangocairo-context.c.

2007-05-03  Behdad Esfahbod  <[e-mail]>

	* pango/pango-context.c (pango_itemize): Improve docs about freeing
	returned items.

2007-05-03  Behdad Esfahbod  <[e-mail]>

	* pango-view/test-long-paragraph.txt: New test text that contains a
	Persian monologue by YarAli PourMoghaddam which is a single paragraph
	of more than 10,000 chars and 2,400 words.  Used for testing the
	effect of previous change.

2007-05-03  Behdad Esfahbod  <[e-mail]>

	* pango/pango-layout.c (process_item): When breaking item to fit it
	into current line, go from the beginning, adding char at a time until
	it doesn't fit anymore instead of removing chars from the end.  The
	difference is a O(n) as opposed to O(n^2) algorithm were n is the
	number of lines in the paragraph (assuming constant chars per line).

2007-05-03  Behdad Esfahbod  <[e-mail]>

	* pango-view/viewer-render.c (output_body), (do_output): Save
	one layout rendering per view.  Down to two from three now.

2007-05-02  Behdad Esfahbod  <[e-mail]>

	* pango-view/test-justify.txt: New test text with long Latin and
	Arabic lines, suitable for --justify testing.

2007-05-02  Behdad Esfahbod  <[e-mail]>

	Bug 64538 – pango_layout_set_justify() doesn't work

	* pango/pango-layout.c (process_item), (justify_clusters),
	(justify_words): If no space found, justify by inserting space
	between clusters.

2007-05-02  Behdad Esfahbod  <[e-mail]>