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[patch] Simple workaround for cocoa relative mouse jump

cocoa-relativemouse.patch (text/plain), 1.17 KB, created by Kevin Shanahan on 2013-05-03 01:07:34 UTC

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Filename:

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Creator: Kevin Shanahan

Created: 2013-05-03 01:07:34 UTC

Size: 1.17 KB

patch

obsolete

>diff -r 398073b195bb src/video/cocoa/SDL_cocoamouse.m
>--- a/src/video/cocoa/SDL_cocoamouse.m	Fri Dec 14 23:05:34 2012 -0800
>+++ b/src/video/cocoa/SDL_cocoamouse.m	Sat Dec 15 20:18:07 2012 +1030
>@@ -179,6 +179,14 @@
>     CGWarpMouseCursorPosition(point);
> }
> 
>+/*
>+ * It seems that after calling CGAssociateMouseAndMouseCursorPosition(false),
>+ * the first relative event will report the jump from current position back to
>+ * whatever fixed point it is going to report from then onwards. Simplest
>+ * thing to do seems to be just ignore the first relative event.
>+ */
>+static SDL_bool ignore_one_relative_event = SDL_FALSE;
>+
> static int
> Cocoa_SetRelativeMouseMode(SDL_bool enabled)
> {
>@@ -193,6 +201,9 @@
>         SDL_SetError("CGAssociateMouseAndMouseCursorPosition() failed");
>         return -1;
>     }
>+
>+    ignore_one_relative_event = enabled;
>+
>     return 0;
> }
> 
>@@ -216,6 +227,11 @@
> {
>     SDL_Mouse *mouse = SDL_GetMouse();
> 
>+    if (mouse->relative_mode && ignore_one_relative_event) {
>+        ignore_one_relative_event = SDL_FALSE;
>+        return;
>+    }
>+
>     if (mouse->relative_mode &&
>         ([event type] == NSMouseMoved ||
>          [event type] == NSLeftMouseDragged ||

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We are currently migrating Bugzilla to GitHub issues.Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.

We are currently migrating Bugzilla to GitHub issues.
Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.
When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.