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allegro

This document pertains to font related methods found in the Allegro egg.

Please see the main [allegro] wiki page for more information.

Enums

font-align

font-align->int font-alignprocedure

font-align may be one of the following symbols:

• left
• center
• right

int->font-align integerprocedure

Records

font

fontrecord

font-data fontprocedure

font-height fontprocedure

utf-string

utf-stringrecord

Functions

Fonts

(register-font-loader (string extension) (function font (string integer integer)))procedure

Implements al_register_font_loader.

load-bitmap-font* stringprocedure

Implements al_load_bitmap_font.

load-bitmap-font stringprocedure

Implements al_load_bitmap_font, with (free-font!) declared as a finalizer.

(load-font* string (integer size) (integer flags))procedure

Implements al_load_font.

(load-font string (integer size) (integer flags))procedure

Implements al_load_font, with (free-font!) declared as a finalizer.

(make-font-from-bitmap* bitmap (integer n) (s32vector ranges))procedure

Implements al_grab_font_from_bitmap.

(make-font-from-bitmap bitmap (integer n) (s32vector ranges))procedure

Implements al_grab_font_from_bitmap, with (free-font!) declared as a finalizer.

free-font! fontprocedure

Implements al_destroy_font.

(font-draw-utf (font f) (color c) (float x) (float y) (font-align flags) (utf-string ustr))procedure

Implements al_draw_ustr.

(font-draw-string (font f) (color c) (float x) (float y) (font-align flags) (string text))procedure

Implements al_draw_text.

(font-draw-justified-string (font f) (color c) (float x1) (float x2) (float y) (float diff) (font-align flags) (c-string text))procedure

Implements al_draw_justified_text.

(font-draw-justified-utf-string (font f) (color c) (float x1) (float x2) (float y) (float diff) (font-align flags) (utf-string text))procedure

Implements al_draw_justified_ustr.

font-width font stringprocedure

Implements al_get_text_width.

font-utf-width font utf-stringprocedure

Implements al_get_ustr_width.

font-line-height fontprocedure

Implements al_get_font_line_height.

font-ascent fontprocedure

Implements al_get_font_ascent.

font-descent fontprocedure

Implements al_get_font_descent.

(font-utf-dimensions (font f) (utf-string text))procedure

Returns a 4-element list consisting of the bounding box elements: x, y, width and height.

(font-dimensions (font f) (string text))procedure

Returns a 4-element list consisting of the bounding box elements: x, y, width and height.

font-addon-installprocedure

Implements al_init_font_addon.

font-addon-uninstallprocedure

Implements al_shutdown_font_addon.

font-addon-versionprocedure

Implements al_get_allegro_font_version.

True Type Font Support

(load-ttf* (string filename) (integer size) (integer flags))procedure

Implements al_load_ttf_font.

(load-ttf (string filename) (integer size) (integer flags))procedure

Implements al_load_ttf_font, with (free-font!) declared as a finalizer.

(load-ttf-from-file* (file f) (string filename) (integer size) (integer flags))procedure

Implements al_load_ttf_font_f.

(load-ttf-from-file (file f) (string filename) (integer size) (integer flags))procedure

Implements al_load_ttf_font_f, with (free-font!) declared as a finalizer.

ttf-addon-installprocedure

Implements al_init_ttf_addon.

ttf-addon-uninstallprocedure

Implements al_shutdown_ttf_addon.

ttf-addon-versionprocedure

Implements al_get_allegro_ttf_version.

UTF Strings

make-utf-string* stringprocedure

Implements al_ustr_new.

make-utf-string stringprocedure

Implements al_ustr_new, with (free-utf-string!) declared as a finalizer.

make-utf-string-from-buffer* blobprocedure

Given a blob, produces a new utf-string.

make-utf-string-from-buffer blobprocedure

Given a blob, produces a new utf-string, with (free-utf-string!) declared as a finalizer.

free-utf-string! utf-stringprocedure

Implements al_ustr_free.

utf->string utf-stringprocedure

Implements al_cstr.

utf->buffer! utf-string blobprocedure

Implements al_ustr_to_buffer.

utf->string-copy utf-stringprocedure

Implements al_cstr_dup.

utf-copy* utf-stringprocedure

Implements al_ustr_dup.

utf-copy utf-stringprocedure

Implements al_ustr_dup, with (free-utf-string!) declared as a finalizer.

(utf-substring* utf-string (integer start) (integer end))procedure

Implements al_ustr_dup_substr.

(utf-substring utf-string (integer start) (integer end))procedure

Implements al_ustr_dup_substr, with (free-utf-string!) declared as a finalizer.

utf-empty-stringprocedure

Implements al_ustr_empty_string.

make-utf-null-string*procedure

Makes an empty utf-string struct, where the string pointer is unset.

make-utf-null-stringprocedure

Makes an empty utf-string struct, where the string pointer is unset, with (free-utf-string!) declared as a finalizer.

utf-reference-cstr* stringprocedure

Implements al_ref_cstr.

utf-reference-cstr stringprocedure

Implements al_ref_cstr, with (free-utf-string!) declared as a finalizer.

utf-reference-buffer* blobprocedure

Implements al_ref_buffer.

utf-reference-buffer blobprocedure

Implements al_ref_buffer, with (free-utf-string!) declared as a finalizer.

(utf-reference-utf-string* utf-string (integer start) (integer end))procedure

Implements al_ref_ustr.

(utf-reference-utf-string utf-string (integer start) (integer end))procedure

Implements al_ref_ustr, with (free-utf-string!) declared as a finalizer.

utf-size utf-stringprocedure

Implements al_ustr_size.

utf-length utf-stringprocedure

Implements al_ustr_length.

utf-offset utf-string integerprocedure

Implements al_ustr_offset.

utf-next utf-string integerprocedure

Implements al_ustr_next, modified to return #f at the end of the string.

utf-previous utf-string integerprocedure

Implements al_ustr_prev, modified to return #f at the end of the string.

utf-get utf-string integerprocedure

Implements al_ustr_get.

utf-get-next utf-string integerprocedure

Returns a 2-element list consisting of the next code and its position, or #f if at the end of the string.

utf-get-prev utf-string integerprocedure

Returns a 2-element list consisting of the previous code and its position, or #f if at the start of the string.

utf-remove-char! utf-string integerprocedure

Implements al_ustr_remove_chr.

(utf-remove-range! utf-string (integer start) (integer end))procedure

Implements al_ustr_remove_range.

utf-truncate! utf-string integerprocedure

Implements al_ustr_truncate.

utf-ltrim! utf-stringprocedure

Implements al_ustr_ltrim_ws.

utf-rtrim! utf-stringprocedure

Implements al_ustr_rtrim_ws.

utf-trim! utf-stringprocedure

Implements al_ustr_trim_ws.

utf-assign! utf-string utf-stringprocedure

Implements al_ustr_assign.

(utf-assign-substring! utf-string utf-string (integer start) (integer end))procedure

Implements al_ustr_assign_substr.

utf-assign-string! utf-string stringprocedure

Implements al_ustr_assign_cstr.

(utf-set-char! utf-string (integer pos) (integer char))procedure

Implements al_ustr_set_chr.

(utf-replace-range! utf-string (integer start) (integer end) utf-string)procedure

Implements al_ustr_replace_range.

(utf-find utf-string (integer start) utf-string)procedure

Implements al_ustr_find_str.

(utf-find-string utf-string (integer start) string)procedure

Implements al_ustr_find_cstr.

(utf-find-char utf-string (integer start) (integer char))procedure

Implements al_ustr_find_chr.

(utf-find-set utf-string (integer start) utf-string)procedure

Implements al_ustr_find_set.

utf-find-set-string utf-string integer stringprocedure

Implements al_ustr_find_set_cstr.

utf-find-cset utf-string integer utf-stringprocedure

Implements al_ustr_find_cset.

utf-find-cset-string utf-string integer stringprocedure

Implements al_ustr_find_set_cstr.

utf-rfind utf-string integer utf-stringprocedure

Implements al_ustr_rfind_str.

(utf-rfind-char utf-string integer (integer char))procedure

Implements al_ustr_rfind_char.

utf-rfind-string utf-string integer stringprocedure

Implements al_ustr_rfind_cstr.

utf-find&replace! utf-string integer utf-string utf-stringprocedure

Implements al_ustr_find_replace.

utf-find&replace-string! utf-string integer string stringprocedure

Implements al_ustr_find_replace_cstr.

utf-equal? utf-string utf-stringprocedure

Implements al_ustr_equal.

utf-compare utf-string utf-stringprocedure

Implements al_ustr_compare.

utf-ncompare utf-string utf-string integerprocedure

Implements al_ustr_ncompare.

utf-prefix? utf-string utf-stringprocedure

Implements al_ustr_has_prefix.

utf-prefix-string? utf-string stringprocedure

Implements al_ustr_has_prefix_cstr.

utf-suffix? utf-string utf-stringprocedure

Implements al_ustr_has_prefix.

utf-suffix-string? utf-string stringprocedure

Implements al_ustr_has_suffix_cstr.

utf8-width integer32procedure

Implements al_utf8_width.

utf8-encode! blob integer32procedure

Implements al_utf8_encode.

utf-string-utf16-size utf-stringprocedure

Implements al_ustr_size_utf16.

utf-string-utf16-encode utf-string blob integerprocedure

Implements al_ustr_encode_utf16.

utf16-width integerprocedure

Implements al_utf16_width.

utf16-encode u16vector integer32procedure

Implements al_utf16_encode.