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Make scroll wheel must less janky on cocoa

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UnknownShadow200 2019-09-30 21:07:14 +10:00
parent 7431825e5f
commit e5ed98c5ce
1 changed files with 10 additions and 3 deletions
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13
src/Window.c
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@ -3845,7 +3845,7 @@ static void Window_ProcessKeyChars(id ev) {
void Window_ProcessEvents(void) {
id ev;
int key, type, x, y;
int key, type, steps, x, y;
CGFloat dx, dy;
CGPoint loc;
float aaa;
@ -3898,8 +3898,15 @@ void Window_ProcessEvents(void) {
break;
case 22: /* NSScrollWheel */
// TODO: Why is this janky
Mouse_ScrollWheel(Send_CGFloat(ev, sel_registerName("deltaY")));
dy = Send_CGFloat(ev, sel_registerName("deltaY"));
/* https://bugs.eclipse.org/bugs/show_bug.cgi?id=220175 */
/* delta is in 'line height' units, but I don't know how to map that to actual units. */
/* All I know is that scrolling by '1 wheel notch' produces a delta of around 0.1, and that */
/* sometimes I'll see it go all the way up to 5-6 with a larger wheel scroll. */
/* So mulitplying by 10 doesn't really seem a good idea, instead I just round outwards. */
/* TODO: Figure out if there's a better way than this. */
steps = dy > 0.0f ? Math_Ceil(dy) : Math_Floor(dy);
Mouse_ScrollWheel(steps);
break;
case 5: /* NSMouseMoved */