#5648 Fixed mouse drift by switching from int to float
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@ -118,7 +118,7 @@ private:
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void sendClipboardEvent(Event::Type type, ClipboardID id) const;
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// message handlers
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bool onMouseMove(SInt32 mx, SInt32 my);
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bool onMouseMove(CGFloat mx, CGFloat my);
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// mouse button handler. pressed is true if this is a mousedown
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// event, false if it is a mouseup event. macButton is the index
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// of the button pressed using the mac button mapping.
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@ -1080,20 +1080,20 @@ OSXScreen::handleSystemEvent(const Event& event, void*)
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}
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bool
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OSXScreen::onMouseMove(SInt32 mx, SInt32 my)
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OSXScreen::onMouseMove(CGFloat mx, CGFloat my)
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{
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LOG((CLOG_DEBUG2 "mouse move %+d,%+d", mx, my));
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LOG((CLOG_DEBUG2 "mouse move %+f,%+f", mx, my));
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SInt32 x = mx - m_xCursor;
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SInt32 y = my - m_yCursor;
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CGFloat x = mx - m_xCursor;
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CGFloat y = my - m_yCursor;
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if ((x == 0 && y == 0) || (mx == m_xCenter && mx == m_yCenter)) {
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return true;
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}
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// save position to compute delta of next motion
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m_xCursor = mx;
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m_yCursor = my;
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m_xCursor = (SInt32)mx;
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m_yCursor = (SInt32)my;
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if (m_isOnScreen) {
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// motion on primary screen
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@ -1122,7 +1122,21 @@ OSXScreen::onMouseMove(SInt32 mx, SInt32 my)
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}
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else {
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// send motion
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sendEvent(m_events->forIPrimaryScreen().motionOnSecondary(), MotionInfo::alloc(x, y));
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// Accumulate together the move into the running total
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static CGFloat m_xFractionalMove = 0;
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static CGFloat m_yFractionalMove = 0;
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m_xFractionalMove += x;
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m_yFractionalMove += y;
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// Return the integer part
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SInt32 intX = (SInt32)m_xFractionalMove;
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SInt32 intY = (SInt32)m_yFractionalMove;
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// And keep only the fractional part
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m_xFractionalMove -= intX;
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m_yFractionalMove -= intY;
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sendEvent(m_events->forIPrimaryScreen().motionOnSecondary(), MotionInfo::alloc(intX, intY));
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}
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}
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