More attribute work. Getting a clearer idea.
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Pietro Gagliardi
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TODO.md
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TODO.md
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@ -127,3 +127,46 @@ label shortcut keys
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[02:15:00] <vrishab> 1.40.3
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[02:20:46] <andlabs> I'll ahve to keep this in mind then, thanks
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[02:20:59] <andlabs> if only there was a cairo-specific attribute for alpha...
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FONT LOADING
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[00:10:08] <hergertme> andlabs: is there API yet to load from memory? last i checked i only found from file (which we use in builder). https://git.gnome.org/browse/gnome-builder/tree/libide/editor/ide-editor-map-bin.c#n115
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[00:15:19] <andlabs> hergertme: no, which is why I was asking =P
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[00:15:30] <andlabs> I would have dug down if I could ensure at least something about the backends a GTK+ 3 program uses
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[00:15:39] <andlabs> on all platforms except windows and os x
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[00:16:11] <hergertme> to the best of my (partially outdated, given pace of foss) knowledge there isn't an api to load from memory
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[00:16:28] <hergertme> you can possibly make a tmpdir and put a temp file in there
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[00:16:52] <hergertme> and load that as your font dir in your FcConfig, so any PangoFontDescription would point to that one font, no matter what
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[00:17:18] <hergertme> (using the API layed out in that link)
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[00:40:38] <andlabs> hergertme: not necessarily fontconfig
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[00:40:45] <andlabs> it can be with ft2 or xft I guess
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[00:40:55] <andlabs> especially since I want the API NOT to make the font part of the font panel
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[00:42:07] <hergertme> what sort of deprecated code are you trying to support?
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[00:42:35] <hergertme> both of those are deprecated in pango fwiw
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[00:43:06] <hergertme> on Linux im pretty sure we use FC everywhere these days
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[00:44:46] <hergertme> (and gtk_widget_set_font_map() is how you get your custom font into a widget without affecting the global font lists, as layed out in that link)
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[01:07:51] <andlabs> hergertme: hm
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[01:07:54] <andlabs> all right, thanks
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[01:08:05] <andlabs> hergertme: fwiw right now my requirement is 3.10
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[01:10:47] <hergertme> ah, well you'll probably be missing the neccesary font API on gtk_widget
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[01:11:04] <hergertme> but pango should be fine even back as far as https://developer.gnome.org/pango/1.28/PangoFcFontMap.html
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[01:11:56] <andlabs> good
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[01:12:04] <andlabs> because this is for custom drawing into a DrawingArea
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[01:14:12] <hergertme> presumably just create your PangoContext as normal, but call pango_context_set_font_map() with the map you've setup. now, the load a font from a file i dont think was added to FontConfig until later though (not sure what release)
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[01:15:53] <hergertme> FcConfigAppFontAddFile() <-- that API
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[01:16:30] <hergertme> great, and they don't say what version the API was added in teh docs
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function: ide_editor_map_bin_add()
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@ -60,7 +60,6 @@ void specToOpenType(uiAttributeSpec *spec, specToOpenTypeEnumFunc f, void *data)
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break;
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}
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return;
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// TODO is this correct or should we explicitly switch the rest off too?
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case uiAttributeSuperscripts:
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switch (spec->Value) {
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case uiAttributeSuperscriptSuperscript:
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@ -150,6 +149,9 @@ void specToOpenType(uiAttributeSpec *spec, specToOpenTypeEnumFunc f, void *data)
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case uiAttributeGlyphAnnotations:
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(*f)("nalt", (uint32_t) (spec->Value), data);
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return;
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case uiAttributeRubyKanaForms:
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boolspec(spec, "ruby", data);
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return;
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case uiAttributeCJKRomanToitalics:
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boolspec(spec, "ital", data);
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return;
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@ -261,12 +263,9 @@ void specToOpenType(uiAttributeSpec *spec, specToOpenTypeEnumFunc f, void *data)
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// TODO missing that AAT uses directly:
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// - pkna, pwid, fwid, hwid, twid, qwid, palt, valt, vpal, halt, vhal, kern, vkrn (CJK width control)
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// - ruby
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// missing that AAT knows about:
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// - ccmp (compositions)
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// - curs (cursive positioning)
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// - Core Text uses this in language-specific stuff
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// - dnom, numr (fraction parts)
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// - dnom, numr (fraction parts) — no AAT equivalent...
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// - falt, jalt (Arabic support)
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// - rclt (required contextual alternates)
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// - lfbd, opbd, rtbd (optical bounds support)
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@ -288,6 +287,7 @@ void specToOpenType(uiAttributeSpec *spec, specToOpenTypeEnumFunc f, void *data)
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// blwm yes yes
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// blws yes TODO
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// cjct yes yes
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// curs yes yes
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// dist yes yes
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// falt TODO TODO
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// fin2 yes yes
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13
ui_attrstr.h
13
ui_attrstr.h
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@ -24,8 +24,6 @@ _UI_ENUM(uiAttribute) {
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// Windows: requires Platform Update, SetLetterSpacing()
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// parameter meaning unspecified
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// TODO kCTLigatureAttributeName vs below
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uiAttributeUnderline, // enum uiDrawUnderlineStyle
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// TODO what is the color in the case we don't specify it, black or the text color?
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uiAttributeUnderlineColor, // enum uiDrawUnderlineColor
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@ -35,13 +33,14 @@ _UI_ENUM(uiAttribute) {
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// TODO kCTBaselineClassAttributeName, kCTBaselineInfoAttributeName, kCTBaselineReferenceInfoAttributeName
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// TODO kCTRubyAnnotationAttributeName vs below
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// TODO strikethroughs? (pango yes, directwrite yes, os x no)
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// TODO baseline offsets? (pango yes)
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// TODO size scales? (pango yes)
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// TODO fallbacks (pango: enable or disable)
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// TODO document that this will also enable language-specific font features (TODO on DirectWrite too?)
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uiAttributeLanguage, // BCP 47 string
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#if 0
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// These attributes represent typographic features. Each feature
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@ -79,7 +78,7 @@ _UI_ENUM(uiAttribute) {
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// TODO rename this
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uiAttributeNumberSpacings, // enum uiAttributeNumberSpacing
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// TODO kSmartSwashType
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// TODO kSmartSwashType, falt and jalt
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// TODO kDiacriticsType
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@ -146,7 +145,7 @@ _UI_ENUM(uiAttribute) {
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// TODO kUnicodeDecompositionType
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// TODO kRubyKanaType
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uiAttributeRubyKanaForms, // 0 = off, 1 = on
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// TODO kCJKVerticalRomanPlacementType
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// this is 'valt' in OpenType but I don't know if I want to make it selectable or not
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@ -190,8 +189,6 @@ _UI_ENUM(uiAttribute) {
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uiAttributeLowercaseCapForms, // enum uiAttributeCapForm
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uiAttributeUppercaseCapForms, // enum uiAttributeCapForm
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// TODO kLanguageTagType?
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// TODO kCJKRomanSpacingType
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#endif
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