292 * {@inheritDoc}
293 */
294 @Override
295 protected void interpolate(double frac) {
296 final Color newColor = start.interpolate(end, frac);
297 cachedShape.setStroke(newColor);
298 }
299
300 private Shape getTargetShape() {
301 Shape shape = getShape();
302 if (shape == null) {
303 final Node node = getParentTargetNode();
304 if (node instanceof Shape) {
305 shape = (Shape) node;
306 }
307 }
308 return shape;
309 }
310
311 @Override
312 boolean impl_startable(boolean forceSync) {
313 if (!super.impl_startable(forceSync)) {
314 return false;
315 }
316 // check if synchronization is not forced and cached values are valid
317 if (!forceSync && (cachedShape != null)) {
318 return true;
319 }
320
321 // we have to synchronize
322 final Shape shape = getTargetShape();
323 return ((shape != null) // shape is defined?
324 && ((getFromValue() != null) || (shape.getStroke() instanceof Color)) // fromValue
325 // defined
326 // or
327 // current
328 // stroke
329 // paint
330 // is
331 // Color?
332 && (getToValue() != null)); // toValue defined?
333 }
334
335 @Override
336 void impl_sync(boolean forceSync) {
337 super.impl_sync(forceSync);
338 if (forceSync || (cachedShape == null)) {
339 cachedShape = getTargetShape();
340 final Color _fromValue = getFromValue();
341 start = (_fromValue != null) ? _fromValue : (Color) cachedShape
342 .getStroke();
343 end = getToValue();
344 }
345 }
346 }
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292 * {@inheritDoc}
293 */
294 @Override
295 protected void interpolate(double frac) {
296 final Color newColor = start.interpolate(end, frac);
297 cachedShape.setStroke(newColor);
298 }
299
300 private Shape getTargetShape() {
301 Shape shape = getShape();
302 if (shape == null) {
303 final Node node = getParentTargetNode();
304 if (node instanceof Shape) {
305 shape = (Shape) node;
306 }
307 }
308 return shape;
309 }
310
311 @Override
312 boolean startable(boolean forceSync) {
313 if (!super.startable(forceSync)) {
314 return false;
315 }
316 // check if synchronization is not forced and cached values are valid
317 if (!forceSync && (cachedShape != null)) {
318 return true;
319 }
320
321 // we have to synchronize
322 final Shape shape = getTargetShape();
323 return ((shape != null) // shape is defined?
324 && ((getFromValue() != null) || (shape.getStroke() instanceof Color)) // fromValue
325 // defined
326 // or
327 // current
328 // stroke
329 // paint
330 // is
331 // Color?
332 && (getToValue() != null)); // toValue defined?
333 }
334
335 @Override
336 void sync(boolean forceSync) {
337 super.sync(forceSync);
338 if (forceSync || (cachedShape == null)) {
339 cachedShape = getTargetShape();
340 final Color _fromValue = getFromValue();
341 start = (_fromValue != null) ? _fromValue : (Color) cachedShape
342 .getStroke();
343 end = getToValue();
344 }
345 }
346 }
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