README
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fonts
This is a bitmap font library for go. It can load a font definition and glyphs from a file, and then uses the image/draw functions to paint them onto images. It also implements a WrapText function which can be used to split a string into chunks which will fit into a given width for that font.
Font file format
A font consists of 2 files - a textual description and an image with the glyphs. The image should have all the of the glyphs in a single row, appropriately aligned to put the baseline in the desred position. The text file consists of a single line header followed by the glyph definitions.
The header looks like this:
[font name], [glyph image file], [number of glyphs]
Followed by [number of glyph] lines describing the glyphs:
[ascii code], [left-most pixel in image], [width of glyph in pixels]
Documentation
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Index ¶
- Constants
- type Font
- func (f *Font) Height() int
- func (f *Font) Letters() map[byte]image.Rectangle
- func (f *Font) MakeWord(word string) *image.Paletted
- func (f *Font) MakeWordColor(word string, bg, fg color.Color) *image.Paletted
- func (f *Font) Name() string
- func (f *Font) Width(word string) int
- func (f *Font) WrapText(sentence string, width int) []string
Constants ¶
const WRAP_THRESH = 10
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Font ¶
type Font struct {
// contains filtered or unexported fields
}
func NewFontFromFile ¶
func NewFontFromImage ¶
func (*Font) MakeWordColor ¶
MakeWordColor makes an image from a string (with colors)
Source Files