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#3992 macOS: Dragging broken in Unity

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OSXScreen was not adding mouse movement deltas to mouse events while
dragging. Some 3D applications rely on these deltas to implement
dragging. Adding the mouse deltas to the mouse event fixes dragging in
these applications. Ex: Unity3d
This commit is contained in:
James McMullan 2014-12-03 16:47:05 -05:00 committed by Andrew Nelless
parent ba55369d42
commit 0eff5a95be
1 changed files with 17 additions and 1 deletions
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18
src/lib/platform/OSXScreen.mm
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@ -496,7 +496,23 @@ OSXScreen::postMouseEvent(CGPoint& pos) const
// Fix for sticky keys
CGEventFlags modifiers = m_keyState->getModifierStateAsOSXFlags();
CGEventSetFlags(event, modifiers);
// Set movement deltas to fix issues with certain 3D programs
SInt64 deltaX = pos.x;
deltaX -= m_xCursor;
SInt64 deltaY = pos.y;
deltaY -= m_yCursor;
CGEventSetIntegerValueField(event, kCGMouseEventDeltaX, deltaX);
CGEventSetIntegerValueField(event, kCGMouseEventDeltaY, deltaY);
double deltaFX = deltaX;
double deltaFY = deltaY;
CGEventSetDoubleValueField(event, kCGMouseEventDeltaX, deltaFX);
CGEventSetDoubleValueField(event, kCGMouseEventDeltaY, deltaFY);
CGEventPost(kCGHIDEventTap, event);
CFRelease(event);