layout.FRect, layout.FPt for converting from integer to floating point,
useful for drawing operations.
f32.Pt is a shorthand that mirrors image.Pt.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Instead of
type Contraints struct {
Width, Height Constraint
}
use
type Constraints struct {
Min, Max image.Point
}
which leads to simpler use. For example, the Min method is trivally replaced by
the field, and the RigidConstraints constructor is no longer a net win.
API Change. Rewrites:
gofmt -r 'gtx.Constraints.Min() -> gtx.Constraints.Min'
gofmt -r 'gtx.Constraints.Width.Min -> gtx.Constraints.Min.X'
gofmt -r 'gtx.Constraints.Height.Min -> gtx.Constraints.Min.Y'
gofmt -r 'gtx.Constraints.Height.Max -> gtx.Constraints.Max.Y'
gofmt -r 'gtx.Constraints.Width.Max -> gtx.Constraints.Max.X'
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Key had an unfortunate association with keyboard input.
This is an API change. The following rewrites were run to fixup
Gio code:
$ gofmt -r 'pointer.InputOp{Key:a} -> pointer.InputOp{Tag:a}' -w .
$ gofmt -r 'pointer.InputOp{Key:a, Grab:b} -> pointer.InputOp{Tag:a, Grab:b}' -w .
$ gofmt -r 'key.InputOp{Key:a} -> key.InputOp{Tag:a}' -w .
$ gofmt -r 'key.InputOp{Key:a, Focus:b} -> key.InputOp{Tag:a, Focus:b}' -w .
$ gofmt -r 'event.Key -> event.Tag' -w .
Signed-off-by: Elias Naur <mail@eliasnaur.com>
The app.ReadClipboard and app.WriteClipboard can be used to interact
with the system clipboard. The clipboard may be asynchronous, so
system.ClipboardEvent is introduced to deliver the result of a read.
Updates gio#31
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Before this change, we had a viewDo that serialized a function on a view
on a single goroutine. For better or worse, most callbacks in Cocoa
happen on the main thread, so we might as well use that.
The only exception is the frame callback from the CADisplayLink.
We could force that through the main thread as well, but for
efficiency settle with making the view-to-window map synchronized.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Asynchronous drawing happens only in onFrameCallback, where we have to
check for disappearing views. onDraw however, is synchronous and should
always have a valid view.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Before, the wakeup pipe both woke the event loop and implied a redraw.
We're going to use the notication for more, so deduce the need for redraw
from window state instead.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
The implementation was too optimistic: some platforms require a
window context for accessing the clipboard.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Before, notifying the event loop implied a redraw. Derive the need
for redrawing expliticly and use the notification pipe for wakeups
only.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Elias Naur