Module rstk::font

Font - support for defining and customising fonts.

• also see the Tk manual

Tk provides a lot of control over font objects.

Fonts are created using the struct, specifying those properties we want to set, and relying on its defaults for the remaining fields. For example, creating a bold Helvetica font with size 12:

let font = rstk::TkFont { family: "Helvetica".to_string(),
                            size: 12,
                            weight: rstk::Weight::Bold,
                            ..Default::default() // completes the remaining values
};

Fonts can be provided to many widgets which display text, e.g. a label:

let label = rstk::make_label(&root);
label.font(&font);
label.text("Label text");

Structs

• ParseFontErr
  Error returned if expected font definition is incorrectly formatted.
• ParseFontMetricsErr
  Error returned if expected font-metrics are incorrectly formatted.
• TkFont
  A font definition.
• TkFontMetrics
  Information on a font’s metrics.

Enums

• Slant
  Defines possible slants for font: roman and italic. See Tk manual
• Weight
  Defines possible weights for font: normal and bold. See Tk manual

Functions

• font_families
  Return list of font families available on current platform.
• tk_caption_font
  Retrieves copy of standard caption font: see tk manual.
• tk_default_font
  Retrieves copy of standard default font: see tk manual.
• tk_fixed_font
  Retrieves copy of standard fixed font: see tk manual.
• tk_heading_font
  Retrieves copy of standard heading font: see tk manual.
• tk_icon_font
  Retrieves copy of standard icon font: see tk manual.
• tk_menu_font
  Retrieves copy of standard menu font: see tk manual.
• tk_small_caption_font
  Retrieves copy of standard small-caption font: see tk manual.
• tk_text_font
  Retrieves copy of standard text font: see tk manual.
• tk_tooltip_font
  Retrieves copy of standard tooltip font: see tk manual.