/*
Position the contentView (presumed to be a subview of the frameView) by
asking the content view for its metrics and positioning it appropriately.
*/
OSStatus PositionContentViewWithMetrics(HIViewRef frameView, HIViewRef contentView)
{
HIViewFrameMetrics metrics = { 0, 0, 0, 0 };
EventRef getMetricsEvent = NULL;
// First we check the frame metrics of the content view by asking it (politely) for the
// metrics it wants
verify_noerr(CreateEvent(NULL, kEventClassControl, kEventControlGetFrameMetrics, GetCurrentEventTime(), 0, &getMetricsEvent));
if(NULL != getMetricsEvent) {
SetEventParameter(getMetricsEvent, kEventParamDirectObject, typeControlRef, sizeof(contentView), &contentView);
SetEventParameter(getMetricsEvent, kEventParamControlFrameMetrics, typeControlFrameMetrics, sizeof(metrics), &metrics);
OSStatus result = SendEventToEventTarget(getMetricsEvent, HIObjectGetEventTarget((HIObjectRef)contentView));
if(result == noErr) {
verify_noerr(GetEventParameter(getMetricsEvent, kEventParamControlFrameMetrics, typeControlFrameMetrics, NULL, sizeof(metrics), NULL, &metrics));
}
ReleaseEvent(getMetricsEvent);
getMetricsEvent = NULL;
}
// Now we reposition the content view based on the metrics we got from it.
HIRect bounds, contentRect;
HIViewGetBounds(frameView, &bounds);
contentRect.origin.x = metrics.left;
contentRect.origin.y = metrics.top;
contentRect.size.width = bounds.size.width - (metrics.left + metrics.right);
contentRect.size.height = bounds.size.height - (metrics.top + metrics.bottom);
HIViewSetFrame(contentView, &contentRect);
return noErr;
}
QSize FilterWidget::sizeHint (void) const
{
HIRect optimalBounds;
EventRef event;
CreateEvent(0, kEventClassControl, kEventControlGetOptimalBounds,
GetCurrentEventTime(), kEventAttributeUserEvent, &event);
SendEventToEventTargetWithOptions(event,
HIObjectGetEventTarget(HIObjectRef(winId())),
kEventTargetDontPropagate);
GetEventParameter(event, kEventParamControlOptimalBounds, typeHIRect,
0, sizeof(HIRect), 0, &optimalBounds);
ReleaseEvent(event);
return QSize(optimalBounds.size.width + 200, optimalBounds.size.height - 4);
}
