Documentation
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Overview ¶
Package font is for typeface and font handling.
There is a certain confusion in the nomenclature of typesetting. We will stick to the following definitions:
* A "typeface" is a family of fonts. An example is "Helvetica". This corresponds to a TrueType "collection" (*.ttc).
* A "scalable font" is a font, i.e. a variant of a typeface with a certain weight, slant, etc. An example is "Helvetica regular".
* A "typecase" is a scaled font, i.e. a font in a certain size for a certain script and language. The name is reminiscend on the wooden boxes of typesetters in the aera of metal type. An example is "Helvetica regular 11pt, Latin, en_US".
Please not that Go (Golang) does use the terms "font" and "face" differently–actually more or less in an opposite manner.
TODO: font collections (*.ttc), e.g., /System/Library/Fonts/Helvetica.ttc
Eigenen Text-Processor schreiben, nur für Latin Script, in pur Go? Alternative zu Harfbuzz; also Latin-Harfbuzz für Arme in Go? Siehe https://docs.microsoft.com/en-us/typography/opentype/spec/ttochap1#text-processing-with-opentype-layout-fonts
Utility to view a character map of a font: http://torinak.com/font/lsfont.html
Website for fonts: https://www.fontsquirrel.com/fonts/list/popular
OpenType explained: https://docs.microsoft.com/en-us/typography/opentype/
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BSD License ¶
Copyright (c) 2017-20, Norbert Pillmayer ¶
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of this software nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type ScalableFont ¶
type ScalableFont struct {
Fontname string
Filepath string // file path
Binary []byte // raw data
SFNT *sfnt.Font // the font's container // TODO: not threadsafe???
}
func LoadOpenTypeFont ¶
func LoadOpenTypeFont(fontfile string) (*ScalableFont, error)
func (*ScalableFont) PrepareCase ¶
func (sf *ScalableFont) PrepareCase(fontsize float64) (*TypeCase, error)
TODO: check if language fits to script TODO: check if font suports script
type TypeCase ¶
type TypeCase struct {
// contains filtered or unexported fields
}
func (*TypeCase) ScalableFontParent ¶
func (tc *TypeCase) ScalableFontParent() *ScalableFont
Source Files