7fe809f8e0
A paint.Event now has an External field. Whenever a paint event is sent by the x/mobile/app package, it is marked as external so users with an active paint loop can ignore them. Implemented on OS X and Android, with examples updated. Change-Id: Ibee8d65625c8818ff954936be48257ad30daa147 Reviewed-on: https://go-review.googlesource.com/15480 Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
25 lines
946 B
Go
25 lines
946 B
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package paint defines an event for the app being ready to paint.
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//
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// See the golang.org/x/mobile/app package for details on the event model.
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package paint // import "golang.org/x/mobile/event/paint"
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// Event indicates that the app is ready to paint the next frame of the GUI.
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//
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//A frame is completed by calling the App's Publish method.
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type Event struct {
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// External is true for paint events sent by the screen driver.
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//
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// An external event may be sent at any time in response to an
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// operating system event, for example the window opened, was
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// resized, or the screen memory was lost.
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//
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// Programs actively drawing to the screen as fast as vsync allows
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// should ignore external paint events to avoid a backlog of paint
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// events building up.
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External bool
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}
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