Dust off Pango binding

basis/glib/glib.factor

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+! Copyright (C) 2008 Matthew Willis.
+! See http://factorcode.org/license.txt for BSD license
+USING: alien.syntax alien.destructors ;
+IN: glib
+
+TYPEDEF: void* gpointer
+
+FUNCTION: void
+g_object_unref ( gpointer object ) ;
+
+DESTRUCTOR: g_object_unref
+
+FUNCTION: void
+g_free ( gpointer mem ) ;

basis/pango/cairo/cairo.factor

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+! Copyright (C) 2008 Matthew Willis.
+! See http://factorcode.org/license.txt for BSD license.
+!
+! pangocairo bindings, from pango/pangocairo.h
+USING: cairo.ffi alien.c-types math alien.syntax system
+combinators alien arrays pango pango.fonts ;
+IN: pango.cairo
+
+<< "pangocairo" {
+    { [ os winnt? ] [ "libpangocairo-1.0-0.dll" ] }
+    { [ os macosx? ] [ "libpangocairo-1.0.0.dylib" ] }
+    { [ os unix? ] [ "libpangocairo-1.0.so" ] }
+} cond "cdecl" add-library >>
+
+LIBRARY: pangocairo
+
+FUNCTION: PangoFontMap*
+pango_cairo_font_map_new  ( ) ;
+
+FUNCTION: PangoFontMap*
+pango_cairo_font_map_new_for_font_type ( cairo_font_type_t fonttype ) ;
+
+FUNCTION: PangoFontMap*
+pango_cairo_font_map_get_default ( ) ;
+
+FUNCTION: cairo_font_type_t
+pango_cairo_font_map_get_font_type ( PangoCairoFontMap* fontmap ) ;
+
+FUNCTION: void
+pango_cairo_font_map_set_resolution ( PangoCairoFontMap* fontmap, double dpi ) ;
+
+FUNCTION: double
+pango_cairo_font_map_get_resolution ( PangoCairoFontMap* fontmap ) ;
+
+FUNCTION: PangoContext*
+pango_cairo_font_map_create_context ( PangoCairoFontMap* fontmap ) ;
+
+FUNCTION: cairo_scaled_font_t*
+pango_cairo_font_get_scaled_font ( PangoCairoFont* font ) ;
+
+! Update a Pango context for the current state of a cairo context
+FUNCTION: void
+pango_cairo_update_context ( cairo_t* cr, PangoContext* context ) ;
+
+FUNCTION: void
+pango_cairo_context_set_font_options ( PangoContext* context, cairo_font_options_t* options ) ;
+
+FUNCTION: cairo_font_options_t*
+pango_cairo_context_get_font_options ( PangoContext* context ) ;
+
+FUNCTION: void
+pango_cairo_context_set_resolution ( PangoContext* context, double dpi ) ;
+
+FUNCTION: double
+pango_cairo_context_get_resolution ( PangoContext* context ) ;
+
+! Convenience
+FUNCTION: PangoLayout*
+pango_cairo_create_layout ( cairo_t* cr ) ;
+
+FUNCTION: void
+pango_cairo_update_layout ( cairo_t* cr, PangoLayout* layout ) ;
+
+! Rendering
+FUNCTION: void
+pango_cairo_show_glyph_string ( cairo_t* cr, PangoFont* font, PangoGlyphString* glyphs ) ;
+
+FUNCTION: void
+pango_cairo_show_layout_line ( cairo_t* cr, PangoLayoutLine* line ) ;
+
+FUNCTION: void
+pango_cairo_show_layout ( cairo_t* cr, PangoLayout* layout ) ;
+
+FUNCTION: void
+pango_cairo_show_error_underline ( cairo_t* cr, double x, double y, double width, double height ) ;
+
+! Rendering to a path
+FUNCTION: void
+pango_cairo_glyph_string_path ( cairo_t* cr, PangoFont* font, PangoGlyphString* glyphs ) ;
+
+FUNCTION: void
+pango_cairo_layout_line_path  ( cairo_t* cr, PangoLayoutLine* line ) ;
+
+FUNCTION: void
+pango_cairo_layout_path ( cairo_t* cr, PangoLayout* layout ) ;
+
+FUNCTION: void
+pango_cairo_error_underline_path ( cairo_t* cr, double x, double y, double width, double height ) ;

basis/pango/fonts/fonts.factor

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+! Copyright (C) 2008 Matthew Willis.
+! See http://factorcode.org/license.txt for BSD license
+USING: pango alien.syntax alien.c-types kernel ;
+IN: pango.fonts
+
+LIBRARY: pango
+
+FUNCTION: void
+pango_font_map_list_families ( PangoFontMap* fontmap, PangoFontFamily*** families, int* n_families ) ;
+
+FUNCTION: char*
+pango_font_family_get_name ( PangoFontFamily* family ) ;
+
+FUNCTION: int
+pango_font_family_is_monospace ( PangoFontFamily* family ) ;
+
+FUNCTION: void
+pango_font_family_list_faces ( PangoFontFamily* family, PangoFontFace*** faces, int* n_faces ) ;
+
+FUNCTION: char*
+pango_font_face_get_face_name ( PangoFontFace* face ) ;
+
+FUNCTION: void
+pango_font_face_list_sizes ( PangoFontFace* face, int** sizes, int* n_sizes ) ;

basis/pango/layouts/layouts.factor

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+! Copyright (C) 2008 Matthew Willis.
+! See http://factorcode.org/license.txt for BSD license.
+USING: arrays alien alien.c-types math destructors accessors
+namespaces kernel pango pango.cairo cairo.ffi glib ;
+IN: pango.layouts
+
+: layout-dim ( layout -- dim )
+    0 <int> 0 <int> [ pango_layout_get_pixel_size ] 2keep
+    [ *int ] bi@ 2array ;
+
+ERROR: bad-font name ;
+
+: set-layout-font ( str layout -- )
+    swap dup pango_font_description_from_string
+    [ ] [ bad-font ] ?if
+    &pango_font_description_free
+    pango_layout_set_font_description ;
+
+: set-layout-text ( str layout -- )
+    -1 pango_layout_set_text ;
+
+: <layout> ( text font cairo -- layout )
+    [
+        pango_cairo_create_layout |g_object_unref
+        [ set-layout-font ] keep
+        [ set-layout-text ] keep
+    ] with-destructors ;
+
+: dummy-cairo ( -- cr )
+    [
+        CAIRO_FORMAT_ARGB32 0 0 cairo_image_surface_create
+        cairo_create
+    ] initialize-alien ;

basis/pango/pango.factor

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+! Copyright (C) 2008 Matthew Willis.
+! See http://factorcode.org/license.txt for BSD license
+USING: system alien.destructors alien.c-types alien.syntax alien
+combinators ;
+IN: pango
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! Helpful functions from other parts of pango
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+<< "pango" {
+    { [ os winnt? ] [ "libpango-1.0-0.dll" ] }
+    { [ os macosx? ] [ "libpango-1.0.0.dylib" ] }
+    { [ os unix? ] [ "libpango-1.0.so" ] }
+} cond "cdecl" add-library >>
+
+LIBRARY: pango
+
+CONSTANT: PANGO_SCALE 1024
+
+FUNCTION: PangoLayout*
+pango_layout_new ( PangoContext* context ) ;
+
+FUNCTION: void
+pango_layout_set_text ( PangoLayout* layout, char* text, int length ) ;
+
+FUNCTION: char*
+pango_layout_get_text ( PangoLayout* layout ) ;
+
+FUNCTION: void
+pango_layout_get_size ( PangoLayout* layout, int* width, int* height ) ;
+
+FUNCTION: PangoFontDescription*
+pango_font_description_from_string ( char* str ) ;
+
+FUNCTION: char*
+pango_font_description_to_string ( PangoFontDescription* desc ) ;
+
+FUNCTION: char*
+pango_font_description_to_filename ( PangoFontDescription* desc ) ;
+
+FUNCTION: void
+pango_layout_set_font_description ( PangoLayout* layout, PangoFontDescription* desc ) ;
+
+FUNCTION: PangoFontDescription*
+pango_layout_get_font_description ( PangoLayout* layout ) ;
+
+FUNCTION: void
+pango_layout_get_pixel_size ( PangoLayout* layout, int* width, int* height ) ;
+
+FUNCTION: void
+pango_font_description_free ( PangoFontDescription* desc ) ;
+
+DESTRUCTOR: pango_font_description_free