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add support for "pixel-perfect" scrolling

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This commit is contained in:
Unrud 2018-07-31 20:19:10 +02:00
parent 209eaf960d
commit c1509ac8fa
6 changed files with 57 additions and 19 deletions
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26
plugin_x11.go
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@ -35,11 +35,15 @@ import (
"unsafe"
)
const typingDelay time.Duration = 100 * time.Millisecond
const (
typingDelay time.Duration = 100 * time.Millisecond
scrollDiv int = 20
)
type x11Plugin struct {
display *C.Display
lock sync.Mutex
display *C.Display
lock sync.Mutex
scrollHorizontal, scrollVertical int
}
func InitX11Plugin() (Plugin, error) {
@ -157,7 +161,13 @@ func (p *x11Plugin) PointerMove(deltaX, deltaY int) error {
return nil
}
func (p *x11Plugin) PointerScroll(stepsHorizontal, stepsVertical int) error {
func (p *x11Plugin) PointerScroll(deltaHorizontal, deltaVertical int) error {
p.lock.Lock()
stepsHorizontal := (p.scrollHorizontal + deltaHorizontal) / scrollDiv
stepsVertical := (p.scrollVertical + deltaVertical) / scrollDiv
p.scrollHorizontal = (p.scrollHorizontal + deltaHorizontal) % scrollDiv
p.scrollVertical = (p.scrollVertical + deltaVertical) % scrollDiv
p.lock.Unlock()
var buttonHorizontal uint = 7
if stepsHorizontal < 0 {
buttonHorizontal = 6
@ -186,3 +196,11 @@ func (p *x11Plugin) PointerScroll(stepsHorizontal, stepsVertical int) error {
}
return nil
}
func (p *x11Plugin) PointerScrollFinish() error {
p.lock.Lock()
defer p.lock.Unlock()
p.scrollHorizontal = 0
p.scrollVertical = 0
return nil
}