Add ButtonEventHandler::getLastMotionPosition(), fix whitespace

dgl/EventHandlers.hpp

@@ -52,16 +52,18 @@ public:
     bool isCheckable() const noexcept;
     void setCheckable(bool checkable) noexcept;
 
+    Point<double> getLastMotionPosition() const noexcept;
+
     void setCallback(Callback* callback) noexcept;
 
     bool mouseEvent(const Widget::MouseEvent& ev);
     bool motionEvent(const Widget::MotionEvent& ev);
 
 protected:
-     State getState() const noexcept;
-     void clearState() noexcept;
+    State getState() const noexcept;
+    void clearState() noexcept;
 
-     virtual void stateChanged(State state, State oldState);
+    virtual void stateChanged(State state, State oldState);
 
     void setInternalCallback(Callback* callback) noexcept;
     void triggerUserCallback(SubWidget* widget, int button);

dgl/src/EventHandlers.cpp

@@ -59,18 +59,14 @@ struct ButtonEventHandler::PrivateData {
             const int state2 = state;
             state &= ~kButtonStateActive;
 
+            self->stateChanged(static_cast<State>(state), static_cast<State>(state2));
+            widget->repaint();
+
             // cursor was moved outside the button bounds, ignore click
             if (! widget->contains(ev.pos))
-            {
-                self->stateChanged(static_cast<State>(state), static_cast<State>(state2));
-                widget->repaint();
                 return true;
-            }
 
             // still on bounds, register click
-            self->stateChanged(static_cast<State>(state), static_cast<State>(state2));
-            widget->repaint();
-
             if (checkable)
                 checked = !checked;
 
@@ -217,6 +213,11 @@ void ButtonEventHandler::setCheckable(const bool checkable) noexcept
     pData->checkable = checkable;
 }
 
+Point<double> ButtonEventHandler::getLastMotionPosition() const noexcept
+{
+    return pData->oldMotionPos;
+}
+
 void ButtonEventHandler::setCallback(Callback* const callback) noexcept
 {
     pData->userCallback = callback;