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I tend to think that users might be confused or startled by full error messages resulting from GUI actions. So, if there's a good chance of an error (say, by somebody dragging the wrong kind of object in), I prefer to wrap the action in a try block and, if needed, present a user friendly warning rather than a panic inducing error. sliderView.receiveDragHandler = { arg slider; try { slider.valueAction = controlSpec.unmap(SCView.currentDrag) } { |error| if(error.notNil) { "Cannot drag \"%\" into EZSlider." .format(SCView.currentDrag).warn }; }; }; Also, maybe I missed something, but if you start dragging when the mouse is inside a slider view, isn't it supposed to invoke the slider's action? Which is... sliderView.action = ""> value = controlSpec.map(sliderView.value); numberView.value = value.round(round); action.value(this); }; What functionality does the slider drag action add? hjh On Dec 3, 2007, at 1:01 AM, blackrain wrote:
: H. James Harkins : jamshark70@xxxxxxxxxxxxxxxxx : http://www.dewdrop-world.net .::!:.:.......:.::........:..!.::.::...:..:...:.:.:.:..: "Come said the Muse, Sing me a song no poet has yet chanted, Sing me the universal." -- Whitman |