Commit Graph

8 Commits

Author SHA1 Message Date
Sebastien Binet e71bf13c9a gpu,op/clip: implement dashed stroked paths
Signed-off-by: Sebastien Binet <s@sbinet.org>
2020-12-09 11:23:13 +01:00
Sebastien Binet be89f8b945 all: introduce Outline and Stroke builders
This CL introduces 2 new path builders:
- Outline which takes a PathSpec to be outlined
- Stroke which takes a PathSpec and a stroke style, to stroke a path.

typically, code like this:

  var p clip.Path
  ...
  p.Outline().Add(o)

should be replaced with:

  var p clip.Path
  ...
  clip.Outline{Path: p.End()}.Op().Add(o)

similarly, stroking should be modified from:

  var p clip.Path
  ...
  p.Stroke(width, clip.StrokeStyle{...}).Add(o)

to:

  var p clip.Path
  ...
  clip.Stroke{Path: p.End(), Style: clip.StrokeStyle{Width:...}}.Op().Add(o)

here are tentative 'rf' scripts (see rsc.io/rf for more details):

  ```
  ex {
  	import "gioui.org/op";
  	import "gioui.org/op/clip";

  	var p clip.Path;
  	var o *op.Ops;

  	p.Outline().Add(o) -> clip.Outline{Path:p.End()}.Op().Add(o);
  }

  ex {
  	import "gioui.org/op";
  	import "gioui.org/op/clip";

  	var o *op.Ops;
  	var p clip.Path;
  	var sty clip.StrokeStyle;
  	var width float32;

  	p.Stroke(width, sty).Add(o) ->   \
	    clip.Stroke{                 \
		Path:p.End(),            \
		Style: clip.StrokeStyle{ \
		    Width: width,        \
	    }}.Op().Add(o);
  }
  ```

Signed-off-by: Sebastien Binet <s@sbinet.org>
2020-12-09 09:44:15 +01:00
Sebastien Binet ae256b5be8 op/clip: use stroked path to draw Border
Signed-off-by: Sebastien Binet <s@sbinet.org>
2020-11-10 16:41:14 +01:00
Sebastien Binet 936eb52b7e all: rename clip.Path.End into clip.Path.Outline
Signed-off-by: Sebastien Binet <s@sbinet.org>
2020-11-10 15:58:07 +01:00
Chris Waldon 685e0772a3 op/clip: add UniformRRect to create rects with uniform corner radii
Signed-off-by: Chris Waldon <christopher.waldon.dev@gmail.com>
2020-10-22 18:57:43 +02:00
Chris Waldon 8bdca84c56 op/clip: export Op method of clip shapes
This allows passing the resulting clip.Op types into functions that
draw shapes.

Signed-off-by: Chris Waldon <christopher.waldon.dev@gmail.com>
2020-10-22 18:57:40 +02:00
Elias Naur c76b42e486 op/clip,widget: add clip.Border and widget.Border
Signed-off-by: Elias Naur <mail@eliasnaur.com>
2020-07-09 19:55:37 +02:00
Elias Naur d572aa23ac op/clip: split Rect into pixel-aligned Rect and rounded RRect
The pixel-aligned Rect is more efficient and easier to use in the common case
of layout clipping.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
2020-07-09 18:33:00 +02:00