-! 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: cairo.pango
-
-<< "pangocairo" {
-! { [ os winnt? ] [ "libpangocairo-1.dll" ] }
-! { [ os macosx? ] [ "libpangocairo.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 ) ;
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-! Higher level words and combinators
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
-USING: destructors accessors namespaces kernel cairo ;
-
-TUPLE: pango-layout alien ;
-C: <pango-layout> pango-layout
-M: pango-layout dispose ( alien -- ) alien>> g_object_unref ;
-
-: layout ( -- pango-layout ) pango-layout get ;
-
-: (with-pango) ( layout quot -- )
- >r alien>> pango-layout r> with-variable ; inline
-
-: with-pango ( quot -- )
- cr pango_cairo_create_layout <pango-layout> swap
- [ (with-pango) ] curry with-disposal ; inline
-
-: pango-layout-get-pixel-size ( layout -- width height )
- 0 <int> 0 <int> [ pango_layout_get_pixel_size ] 2keep
- [ *int ] bi@ ;
-
-: dummy-pango ( quot -- )
- >r CAIRO_FORMAT_ARGB32 0 0 cairo_image_surface_create
- r> [ with-pango ] curry with-cairo-from-surface ; inline
-
-: layout-size ( quot -- dim )
- [ layout pango-layout-get-pixel-size 2array ] compose dummy-pango ; inline
-
-: layout-font ( str -- )
- pango_font_description_from_string
- dup zero? [ "pango: not a valid font." throw ] when
- layout over pango_layout_set_font_description
- pango_font_description_free ;
-
-: layout-text ( str -- )
- layout swap -1 pango_layout_set_text ;
-
-: families ( -- families )
- pango_cairo_font_map_get_default list-families ;