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support mouse wheel scrolling

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This commit is contained in:
Jesse Duffield 2021-04-02 14:34:12 +11:00
parent bcc4dcd991
commit 1238f910f0
1 changed files with 14 additions and 10 deletions
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24
tcell_driver.go
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@ -177,6 +177,8 @@ func pollEvent() GocuiEvent {
mouseKey = MouseWheelRight
}
wheeling := mouseKey == MouseWheelUp || mouseKey == MouseWheelDown || mouseKey == MouseWheelLeft || mouseKey == MouseWheelRight
// process button events (not wheel events)
button &= tcell.ButtonMask(0xff)
if button != tcell.ButtonNone && lastMouseKey == tcell.ButtonNone {
@ -210,17 +212,19 @@ func pollEvent() GocuiEvent {
}
}
switch dragState {
case NOT_DRAGGING:
return GocuiEvent{Type: eventNone}
// if we haven't released the left mouse button and we've moved the cursor then we're dragging
case MAYBE_DRAGGING:
if x != lastX || y != lastY {
dragState = DRAGGING
if !wheeling {
switch dragState {
case NOT_DRAGGING:
return GocuiEvent{Type: eventNone}
// if we haven't released the left mouse button and we've moved the cursor then we're dragging
case MAYBE_DRAGGING:
if x != lastX || y != lastY {
dragState = DRAGGING
}
case DRAGGING:
mouseMod = ModMotion
mouseKey = MouseLeft
}
case DRAGGING:
mouseMod = ModMotion
mouseKey = MouseLeft
}
return GocuiEvent{