Before this change, a radio button with the empty key ("") would be
displayed as hovering if no other button were.
It's still not possible to have no radio buttons selected when one of
them is the empty key. If that's becomes necessary, Enum.Value can be
converted to a *string.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
checkable.layout forces the label to take up at least constraints.min
space. However, for min == max, the total checkbox plus label would then
overflow. The minimum constraint doesn't seem necessary anymore, so drop
it.
Remove a superfluous layout.W layout as well.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
- Allow dragging to be on both horizontal and vertical axes at once.
- Split Editor.caret.pos into caret.start and caret.stop. caret.start is
the old caret.pos, and is both the position of the caret, and also the
start of selected text. caret.end is the end of the selected text.
Start can be after end, e.g. after after Shift-DownArrow.
- Update caret.end after a mouse drag, and various shifted keys
(Shift-UpArrow, Shift-DownArrow, etc).
- Change Shortcut-C to copy only the selected text, not the whole editor
text.
- Add Shortcut-X to copy and delete selected text, and Shortcut-A to
select all text.
- The various Insert/Delete/etc functions now overwrite or delete the
selection, as appropriate.
- Change MoveCaret to accept a distance for selection end, as well.
Change SetCaret to accept a selection end offset.
- Add SelectionLen to get the selection length, Selection to get
selection offsets, SelectedText to get the selected text, and
ClearSelection to clear the selection.
- Add a rudimentary selection unit test, and extend the deleteWord unit
test with some text selection cases.
- Add SelectionColor to material.EditorStyle, which defaults to
Theme.Palette.ContrastBg.
Signed-off-by: Larry Clapp <larry@theclapp.org>
Adding an axis to the Float widget, allows positioning the Slider one not only horizontally but also vertically.
Also update the fill ops while there.
Signed-off-by: pierre <pierre.curto@gmail.com>
The semantics were relaxed in a previous commit; this change renames
to operations accordingly.
API change. Use gofmt to adjust your code accordingly:
gofmt -r 'op.Push(a).Pop() -> op.Save(a).Load()'
gofmt -r 'op.Push(a) -> op.Save(a)'
gofmt -r 'v.Pop() -> v.Load()'
gofmt -r 'op.StackOp -> op.StateOp'
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Remove padding from the sides of the Slider to align them with
other components.
However, since sliders still need to be used with fingers try to
enforce a minimum finger height, if there is sufficient room.
The sides don't need similar treatment since after grabbing it's
possible to move the finger beyond the touch area, without losing
interaction.
To not enforce finger size, the theme can be adjusted:
theme.FingerSize = unit.Px(0)
Signed-off-by: Egon Elbre <egonelbre@gmail.com>
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>
This introduces a new material.Palette type that captures the color information
necessary to render a widget. This type is embedded in the material.Theme to
make it easier to swap to a different palette for part of the UI by reassinging
the Palette field.
Signed-off-by: Chris Waldon <christopher.waldon.dev@gmail.com>
color.RGBA has two problems with regards to using it.
First the color values need to be premultiplied, whereas most APIs
have non-premultiplied values. This is mainly to preserve color components
with low alpha values.
Second there are two ways to premultiply with sRGB. One is to premultiply
after sRGB conversion, the other is before. This makes using the API more
confusing.
Using color.NRGBA in sRGB makes it align with CSS.e
Signed-off-by: Egon Elbre <egonelbre@gmail.com>
PaintOp.Rect is the wrong abstraction; it implies a clip operation
better handled by package clip, and not all paints need it (colors).
Furthermore, it's awkward to specify a PaintOp that fills up the
current clip area, regardless of its size.
Redefine PathOp to mean "fill current clip area".
API change. Replace uses of PaintOp.Rect with a TransformOp applied
before the PaintOp.
Leave a TODO for the PathOp infinity area.
Fixes gio#167
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Package material's ad-hoc mulAlpha didn't take the sRGB color-space
into account, which meant that alpha-scaled colors were subtly wrong.
Introduce f32color.MulAlpha and convert all uses to it.
Thanks to René Post for finding and debugging the issue.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit changes the ink-drawing code so that IconButtons that
are not perfectly circular will still ink fully. Previously, an
elliptical icon would only animate a circular sub-region.
Signed-off-by: Chris Waldon <christopher.waldon.dev@gmail.com>
Use op.Offset instead, or create and manipulate a f32.Affine2D.
API change. Update your code with a gofmt rule:
gofmt -r 'op.TransformOp{}.Offset -> op.Offset'
Signed-off-by: Elias Naur <mail@eliasnaur.com>
A slice of FontFace pairs are simpler, and thread safe in case a client
wants to append or modify the font collection.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit configures all remaining widgets to draw themselves in a disabled state
when their layout.Context is disabled. A description of the
strategy employed by each follows:
- Checkbox and RadioButton: Draws the icon component in a lighter color. Currently the label text is left
in its default color.
- ProgressBar: The "progress" color is lightened, but not as much as the background color. This makes the current progress value still readable.
- Editor: The cursor is no longer drawn and the text is lightened.
- Switch: The track is unchanged, but the circular "thumb" component is lightened.
Signed-off-by: Chris Waldon <christopher.waldon.dev@gmail.com>
Then, make layout.Context.Now a field, copied from FrameEvent.Now.
API change:
gofmt -r 'gtx.Now() -> gtx.Now'
Signed-off-by: Elias Naur <mail@eliasnaur.com>
When a clickable is pressed and dragged any enclosing List will grab and
cancels the press. To minimize visual dicontinuity, smoothly fade in the
inkwell.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
This leverages the new semantics of a disabled layout.Context
to draw all of the button types in a disabled state.
Signed-off-by: Chris Waldon <christopher.waldon.dev@gmail.com>
Before this change, package font implemented a global font registry,
with the usual problems of package global state.
This change deletes the global registry and introduces the text.Collection
type for representing a list of fonts and their faces. Collection exports
Lookup that finds the closest match and its face.
The existing FontRegistry is renamed to Cache to reflect its new limited
functionality: a cache of shapes and measurements on top of a Collection.
Then, material.NewTheme is changed to take a Collection and initialize
a Cache.
Updates gio#19 because multiple windows require a separate (writable) Cache per
window, while (read-only) Collections may be shared.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Elias Naur