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authorDimitri Sokolyuk <demon@dim13.org>2018-09-27 20:03:23 +0200
committerDimitri Sokolyuk <demon@dim13.org>2018-09-27 20:03:23 +0200
commit14bb08c1df8db9ec6c8a05520d4eee67971235d9 (patch)
treefc820e59c26ed4c5e87e65737909b47959f0faa5 /vendor/golang.org/x/image/font/basicfont/basicfont.go
parent54eb169e8fc9bc0357139e7c259e977b184f8fbb (diff)
mod tidy
Diffstat (limited to 'vendor/golang.org/x/image/font/basicfont/basicfont.go')
-rw-r--r--vendor/golang.org/x/image/font/basicfont/basicfont.go126
1 files changed, 0 insertions, 126 deletions
diff --git a/vendor/golang.org/x/image/font/basicfont/basicfont.go b/vendor/golang.org/x/image/font/basicfont/basicfont.go
deleted file mode 100644
index 1acc79f..0000000
--- a/vendor/golang.org/x/image/font/basicfont/basicfont.go
+++ /dev/null
@@ -1,126 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:generate go run gen.go
-
-// Package basicfont provides fixed-size font faces.
-package basicfont // import "golang.org/x/image/font/basicfont"
-
-import (
- "image"
-
- "golang.org/x/image/font"
- "golang.org/x/image/math/fixed"
-)
-
-// Range maps a contiguous range of runes to vertically adjacent sub-images of
-// a Face's Mask image. The rune range is inclusive on the low end and
-// exclusive on the high end.
-//
-// If Low <= r && r < High, then the rune r is mapped to the sub-image of
-// Face.Mask whose bounds are image.Rect(0, y*h, Face.Width, (y+1)*h),
-// where y = (int(r-Low) + Offset) and h = (Face.Ascent + Face.Descent).
-type Range struct {
- Low, High rune
- Offset int
-}
-
-// Face7x13 is a Face derived from the public domain X11 misc-fixed font files.
-//
-// At the moment, it holds the printable characters in ASCII starting with
-// space, and the Unicode replacement character U+FFFD.
-//
-// Its data is entirely self-contained and does not require loading from
-// separate files.
-var Face7x13 = &Face{
- Advance: 7,
- Width: 6,
- Height: 13,
- Ascent: 11,
- Descent: 2,
- Mask: mask7x13,
- Ranges: []Range{
- {'\u0020', '\u007f', 0},
- {'\ufffd', '\ufffe', 95},
- },
-}
-
-// Face is a basic font face whose glyphs all have the same metrics.
-//
-// It is safe to use concurrently.
-type Face struct {
- // Advance is the glyph advance, in pixels.
- Advance int
- // Width is the glyph width, in pixels.
- Width int
- // Height is the inter-line height, in pixels.
- Height int
- // Ascent is the glyph ascent, in pixels.
- Ascent int
- // Descent is the glyph descent, in pixels.
- Descent int
- // Left is the left side bearing, in pixels. A positive value means that
- // all of a glyph is to the right of the dot.
- Left int
-
- // Mask contains all of the glyph masks. Its width is typically the Face's
- // Width, and its height a multiple of the Face's Height.
- Mask image.Image
- // Ranges map runes to sub-images of Mask. The rune ranges must not
- // overlap, and must be in increasing rune order.
- Ranges []Range
-}
-
-func (f *Face) Close() error { return nil }
-func (f *Face) Kern(r0, r1 rune) fixed.Int26_6 { return 0 }
-
-func (f *Face) Metrics() font.Metrics {
- return font.Metrics{
- Height: fixed.I(f.Height),
- Ascent: fixed.I(f.Ascent),
- Descent: fixed.I(f.Descent),
- }
-}
-
-func (f *Face) Glyph(dot fixed.Point26_6, r rune) (
- dr image.Rectangle, mask image.Image, maskp image.Point, advance fixed.Int26_6, ok bool) {
-
-loop:
- for _, rr := range [2]rune{r, '\ufffd'} {
- for _, rng := range f.Ranges {
- if rr < rng.Low || rng.High <= rr {
- continue
- }
- maskp.Y = (int(rr-rng.Low) + rng.Offset) * (f.Ascent + f.Descent)
- ok = true
- break loop
- }
- }
- if !ok {
- return image.Rectangle{}, nil, image.Point{}, 0, false
- }
-
- x := int(dot.X+32)>>6 + f.Left
- y := int(dot.Y+32) >> 6
- dr = image.Rectangle{
- Min: image.Point{
- X: x,
- Y: y - f.Ascent,
- },
- Max: image.Point{
- X: x + f.Width,
- Y: y + f.Descent,
- },
- }
-
- return dr, f.Mask, maskp, fixed.I(f.Advance), true
-}
-
-func (f *Face) GlyphBounds(r rune) (bounds fixed.Rectangle26_6, advance fixed.Int26_6, ok bool) {
- return fixed.R(0, -f.Ascent, f.Width, +f.Descent), fixed.I(f.Advance), true
-}
-
-func (f *Face) GlyphAdvance(r rune) (advance fixed.Int26_6, ok bool) {
- return fixed.I(f.Advance), true
-}