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Fix for mac mousewheel.

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(cherry picked from commit 87a4a8484e65ab591ef815ed0700ab0c90994a77)
(cherry picked from commit c0ecee9d69533095bfdb3dbaf9e76747e5e3a7ab)
This commit is contained in:
Keith Johnston 2020-10-06 16:11:36 -07:00 committed by akallabeth
parent e4b30a5cb6
commit 04d2db2730
1 changed files with 15 additions and 12 deletions
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27
client/Mac/MRDPView.m
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@ -416,7 +416,7 @@ DWORD WINAPI mac_client_thread(void *param)
if (fabsf(dy) > FLT_EPSILON)
{
flags = PTR_FLAGS_HWHEEL;
flags = PTR_FLAGS_WHEEL;
units = fabsf(dy) * 120;
if (dy < 0)
@ -424,7 +424,7 @@ DWORD WINAPI mac_client_thread(void *param)
}
else if (fabsf(dx) > FLT_EPSILON)
{
flags = PTR_FLAGS_WHEEL;
flags = PTR_FLAGS_HWHEEL;
units = fabsf(dx) * 120;
if (dx > 0)
@ -433,17 +433,20 @@ DWORD WINAPI mac_client_thread(void *param)
else
return;
/* send out all accumulated rotations */
if (units > WheelRotationMask)
units = WheelRotationMask;
/* Wheel rotation steps:
*
* positive: 0 ... 0xFF -> slow ... fast
* negative: 0 ... 0xFF -> fast ... slow
*/
UINT16 step = units;
if (step > 0xFF)
step = 0xFF;
while (units != 0)
{
/* limit to maximum value in WheelRotationMask (9bit signed value) */
const UINT16 step = units & WheelRotationMask;
mf_scale_mouse_event(context, instance->input, flags | step, 0, 0);
units -= step;
}
/* Negative rotation, so count down steps from top */
if (flags & PTR_FLAGS_WHEEL_NEGATIVE)
step = 0xFF - step;
mf_scale_mouse_event(context, instance->input, flags | step, 0, 0);
}
- (void)mouseDragged:(NSEvent *)event