Commit Graph

8 Commits

Author SHA1 Message Date
Ethan Burns
7a320489ae plan9font: use image.Alpha for subface images.
image.Alpha is fast-pathed in draw.Draw, plan9Image is not.

Change-Id: I5ed8fc4d310bb5c6ec2cffdd0ba4295dae2274cf
Reviewed-on: https://go-review.googlesource.com/21453
Reviewed-by: Nigel Tao <nigeltao@golang.org>
2016-04-07 03:46:29 +00:00
Nigel Tao
f1e9747265 font: add Metrics.Descent.
Change-Id: Id38e7e54264e0e77a28afd8e10cf574610b47336
Reviewed-on: https://go-review.googlesource.com/21019
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-03-23 23:23:04 +00:00
Ethan Burns
7b1c29e1d6 font: add Face.Metrics.
Fixes golang/go#14885

Change-Id: I3aa2d323c97c76cc78d981d4bf6ea9e95c9bf9d2
Reviewed-on: https://go-review.googlesource.com/21035
Reviewed-by: Nigel Tao <nigeltao@golang.org>
2016-03-23 23:05:57 +00:00
Nigel Tao
b3d8467d91 font: fix up some old x/exp/shiny references.
Also add canonical import paths for the newly merged packages.

Change-Id: I96fe3a964ba08e718fc9163c980ef7ea9da551fe
Reviewed-on: https://go-review.googlesource.com/14148
Reviewed-by: David Symonds <dsymonds@golang.org>
2015-09-01 05:21:00 +00:00
Nigel Tao
5ae59125bf shiny/font: have Face.Glyph return an advance width, not a new dot.
This is consistent with Face.GlyphBounds and Face.GlyphAdvance.

Change-Id: I9da6b4f2fdb8f093fc9567c717e8fbbecc624e30
Reviewed-on: https://go-review.googlesource.com/14090
Reviewed-by: David Symonds <dsymonds@golang.org>
2015-08-31 01:31:05 +00:00
Nigel Tao
627898392a shiny/font: add per-glyph metrics.
Change-Id: Ie5c7e29b4eb7bd87b8e99de941f2f94b042e268f
Reviewed-on: https://go-review.googlesource.com/13827
Reviewed-by: Rob Pike <r@golang.org>
2015-08-24 05:53:06 +00:00
Nigel Tao
e87ffe258c shiny/font/plan9font: implement ParseFont.
Also delete font.MultiFace. We can resurrect a font.MultiFace type if we
need it in the future, but for now, it's simpler if it lives in the
plan9font package.

Change-Id: I1493b47696c323424e7d91cb7fac15505bfdd023
Reviewed-on: https://go-review.googlesource.com/13520
Reviewed-by: Rob Pike <r@golang.org>
2015-08-19 04:10:22 +00:00
Nigel Tao
eecb4e626f shiny/font: new package for drawing text on an image.
Package font defines an interface for font faces.

Other packages provide font face implementations. For example, a
truetype package (not part of this CL) would provide one based on .ttf
font files.

This CL also introduces the golang.org/x/exp/shiny/font/plan9font
package, a concrete implementation of the font.Face interface for the
Plan 9 bitmap font format.

Change-Id: Iead8914caaa58c7562b18a86b45002ae47486903
Reviewed-on: https://go-review.googlesource.com/13463
Reviewed-by: Rob Pike <r@golang.org>
2015-08-11 05:46:15 +00:00