135 /** {@inheritDoc} */
136 @Override protected void layoutChildren(final double x, final double y,
137 final double w, final double h) {
138
139 final ScrollBar s = getSkinnable();
140
141 /**
142 * Compute the percentage length of thumb as (visibleAmount/range)
143 * if max isn't greater than min then there is nothing to do here
144 */
145 double visiblePortion;
146 if (s.getMax() > s.getMin()) {
147 visiblePortion = s.getVisibleAmount()/(s.getMax() - s.getMin());
148 }
149 else {
150 visiblePortion = 1.0;
151 }
152
153 if (s.getOrientation() == Orientation.VERTICAL) {
154 if (!Properties.IS_TOUCH_SUPPORTED) {
155 double decHeight = snapSize(decButton.prefHeight(-1));
156 double incHeight = snapSize(incButton.prefHeight(-1));
157
158 decButton.resize(w, decHeight);
159 incButton.resize(w, incHeight);
160
161 trackLength = snapSize(h - (decHeight + incHeight));
162 thumbLength = snapSize(Utils.clamp(minThumbLength(), (trackLength * visiblePortion), trackLength));
163
164 trackBackground.resizeRelocate(snapPosition(x), snapPosition(y), w, trackLength+decHeight+incHeight);
165 decButton.relocate(snapPosition(x), snapPosition(y));
166 incButton.relocate(snapPosition(x), snapPosition(y + h - incHeight));
167 track.resizeRelocate(snapPosition(x), snapPosition(y + decHeight), w, trackLength);
168 thumb.resize(snapSize(x >= 0 ? w : w + x), thumbLength); // Account for negative padding (see also RT-10719)
169 positionThumb();
170 }
171 else {
172 trackLength = snapSize(h);
173 thumbLength = snapSize(Utils.clamp(minThumbLength(), (trackLength * visiblePortion), trackLength));
174
175 track.resizeRelocate(snapPosition(x), snapPosition(y), w, trackLength);
176 thumb.resize(snapSize(x >= 0 ? w : w + x), thumbLength); // Account for negative padding (see also RT-10719)
177 positionThumb();
178 }
179 } else {
180 if (!Properties.IS_TOUCH_SUPPORTED) {
181 double decWidth = snapSize(decButton.prefWidth(-1));
182 double incWidth = snapSize(incButton.prefWidth(-1));
183
184 decButton.resize(decWidth, h);
185 incButton.resize(incWidth, h);
186
187 trackLength = snapSize(w - (decWidth + incWidth));
188 thumbLength = snapSize(Utils.clamp(minThumbLength(), (trackLength * visiblePortion), trackLength));
189
190 trackBackground.resizeRelocate(snapPosition(x), snapPosition(y), trackLength+decWidth+incWidth, h);
191 decButton.relocate(snapPosition(x), snapPosition(y));
192 incButton.relocate(snapPosition(x + w - incWidth), snapPosition(y));
193 track.resizeRelocate(snapPosition(x + decWidth), snapPosition(y), trackLength, h);
194 thumb.resize(thumbLength, snapSize(y >= 0 ? h : h + y)); // Account for negative padding (see also RT-10719)
195 positionThumb();
196 }
197 else {
198 trackLength = snapSize(w);
199 thumbLength = snapSize(Utils.clamp(minThumbLength(), (trackLength * visiblePortion), trackLength));
200
201 track.resizeRelocate(snapPosition(x), snapPosition(y), trackLength, h);
202 thumb.resize(thumbLength, snapSize(y >= 0 ? h : h + y)); // Account for negative padding (see also RT-10719)
203 positionThumb();
204 }
205
206 s.resize(snapSize(s.getWidth()), snapSize(s.getHeight()));
207 }
208
209 // things should be invisible only when well below minimum length
210 if (s.getOrientation() == Orientation.VERTICAL && h >= (computeMinHeight(-1, (int)y , snappedRightInset(), snappedBottomInset(), (int)x) - (y+snappedBottomInset())) ||
211 s.getOrientation() == Orientation.HORIZONTAL && w >= (computeMinWidth(-1, (int)y , snappedRightInset(), snappedBottomInset(), (int)x) - (x+snappedRightInset()))) {
212 trackBackground.setVisible(true);
213 track.setVisible(true);
214 thumb.setVisible(true);
215 if (!Properties.IS_TOUCH_SUPPORTED) {
216 incButton.setVisible(true);
217 decButton.setVisible(true);
218 }
219 }
220 else {
221 trackBackground.setVisible(false);
222 track.setVisible(false);
223 thumb.setVisible(false);
224
225 if (!Properties.IS_TOUCH_SUPPORTED) {
226 /*
599 double minTrackLength() {
600 return 2.0f * getBreadth();
601 }
602
603 /**
604 * Called when ever either min, max or value changes, so thumb's layoutX, Y is recomputed.
605 */
606 void positionThumb() {
607 ScrollBar s = getSkinnable();
608 double clampedValue = Utils.clamp(s.getMin(), s.getValue(), s.getMax());
609 trackPos = (s.getMax() - s.getMin() > 0) ? ((trackLength - thumbLength) * (clampedValue - s.getMin()) / (s.getMax() - s.getMin())) : (0.0F);
610
611 if (!Properties.IS_TOUCH_SUPPORTED) {
612 if (s.getOrientation() == Orientation.VERTICAL) {
613 trackPos += decButton.prefHeight(-1);
614 } else {
615 trackPos += decButton.prefWidth(-1);
616 }
617 }
618
619 thumb.setTranslateX( snapPosition(s.getOrientation() == Orientation.VERTICAL ? snappedLeftInset() : trackPos + snappedLeftInset()));
620 thumb.setTranslateY( snapPosition(s.getOrientation() == Orientation.VERTICAL ? trackPos + snappedTopInset() : snappedTopInset()));
621 }
622
623 private Node getThumb() {
624 return thumb;
625 }
626
627 private Node getTrack() {
628 return track;
629 }
630
631 private Node getIncrementButton() {
632 return incButton;
633 }
634
635 private Node getDecrementButton() {
636 return decButton;
637 }
638
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135 /** {@inheritDoc} */
136 @Override protected void layoutChildren(final double x, final double y,
137 final double w, final double h) {
138
139 final ScrollBar s = getSkinnable();
140
141 /**
142 * Compute the percentage length of thumb as (visibleAmount/range)
143 * if max isn't greater than min then there is nothing to do here
144 */
145 double visiblePortion;
146 if (s.getMax() > s.getMin()) {
147 visiblePortion = s.getVisibleAmount()/(s.getMax() - s.getMin());
148 }
149 else {
150 visiblePortion = 1.0;
151 }
152
153 if (s.getOrientation() == Orientation.VERTICAL) {
154 if (!Properties.IS_TOUCH_SUPPORTED) {
155 double decHeight = snapSizeY(decButton.prefHeight(-1));
156 double incHeight = snapSizeY(incButton.prefHeight(-1));
157
158 decButton.resize(w, decHeight);
159 incButton.resize(w, incHeight);
160
161 trackLength = snapSizeY(h - (decHeight + incHeight));
162 thumbLength = snapSizeY(Utils.clamp(minThumbLength(), (trackLength * visiblePortion), trackLength));
163
164 trackBackground.resizeRelocate(snapPositionX(x), snapPositionY(y), w, trackLength+decHeight+incHeight);
165 decButton.relocate(snapPositionX(x), snapPositionY(y));
166 incButton.relocate(snapPositionX(x), snapPositionY(y + h - incHeight));
167 track.resizeRelocate(snapPositionX(x), snapPositionY(y + decHeight), w, trackLength);
168 thumb.resize(snapSizeX(x >= 0 ? w : w + x), thumbLength); // Account for negative padding (see also RT-10719)
169 positionThumb();
170 }
171 else {
172 trackLength = snapSizeY(h);
173 thumbLength = snapSizeY(Utils.clamp(minThumbLength(), (trackLength * visiblePortion), trackLength));
174
175 track.resizeRelocate(snapPositionX(x), snapPositionY(y), w, trackLength);
176 thumb.resize(snapSizeX(x >= 0 ? w : w + x), thumbLength); // Account for negative padding (see also RT-10719)
177 positionThumb();
178 }
179 } else {
180 if (!Properties.IS_TOUCH_SUPPORTED) {
181 double decWidth = snapSizeX(decButton.prefWidth(-1));
182 double incWidth = snapSizeX(incButton.prefWidth(-1));
183
184 decButton.resize(decWidth, h);
185 incButton.resize(incWidth, h);
186
187 trackLength = snapSizeX(w - (decWidth + incWidth));
188 thumbLength = snapSizeX(Utils.clamp(minThumbLength(), (trackLength * visiblePortion), trackLength));
189
190 trackBackground.resizeRelocate(snapPositionX(x), snapPositionY(y), trackLength+decWidth+incWidth, h);
191 decButton.relocate(snapPositionX(x), snapPositionY(y));
192 incButton.relocate(snapPositionX(x + w - incWidth), snapPositionY(y));
193 track.resizeRelocate(snapPositionX(x + decWidth), snapPositionY(y), trackLength, h);
194 thumb.resize(thumbLength, snapSizeY(y >= 0 ? h : h + y)); // Account for negative padding (see also RT-10719)
195 positionThumb();
196 }
197 else {
198 trackLength = snapSizeX(w);
199 thumbLength = snapSizeX(Utils.clamp(minThumbLength(), (trackLength * visiblePortion), trackLength));
200
201 track.resizeRelocate(snapPositionX(x), snapPositionY(y), trackLength, h);
202 thumb.resize(thumbLength, snapSizeY(y >= 0 ? h : h + y)); // Account for negative padding (see also RT-10719)
203 positionThumb();
204 }
205
206 s.resize(snapSizeX(s.getWidth()), snapSizeY(s.getHeight()));
207 }
208
209 // things should be invisible only when well below minimum length
210 if (s.getOrientation() == Orientation.VERTICAL && h >= (computeMinHeight(-1, (int)y , snappedRightInset(), snappedBottomInset(), (int)x) - (y+snappedBottomInset())) ||
211 s.getOrientation() == Orientation.HORIZONTAL && w >= (computeMinWidth(-1, (int)y , snappedRightInset(), snappedBottomInset(), (int)x) - (x+snappedRightInset()))) {
212 trackBackground.setVisible(true);
213 track.setVisible(true);
214 thumb.setVisible(true);
215 if (!Properties.IS_TOUCH_SUPPORTED) {
216 incButton.setVisible(true);
217 decButton.setVisible(true);
218 }
219 }
220 else {
221 trackBackground.setVisible(false);
222 track.setVisible(false);
223 thumb.setVisible(false);
224
225 if (!Properties.IS_TOUCH_SUPPORTED) {
226 /*
599 double minTrackLength() {
600 return 2.0f * getBreadth();
601 }
602
603 /**
604 * Called when ever either min, max or value changes, so thumb's layoutX, Y is recomputed.
605 */
606 void positionThumb() {
607 ScrollBar s = getSkinnable();
608 double clampedValue = Utils.clamp(s.getMin(), s.getValue(), s.getMax());
609 trackPos = (s.getMax() - s.getMin() > 0) ? ((trackLength - thumbLength) * (clampedValue - s.getMin()) / (s.getMax() - s.getMin())) : (0.0F);
610
611 if (!Properties.IS_TOUCH_SUPPORTED) {
612 if (s.getOrientation() == Orientation.VERTICAL) {
613 trackPos += decButton.prefHeight(-1);
614 } else {
615 trackPos += decButton.prefWidth(-1);
616 }
617 }
618
619 thumb.setTranslateX( snapPositionX(s.getOrientation() == Orientation.VERTICAL ? snappedLeftInset() : trackPos + snappedLeftInset()));
620 thumb.setTranslateY( snapPositionY(s.getOrientation() == Orientation.VERTICAL ? trackPos + snappedTopInset() : snappedTopInset()));
621 }
622
623 private Node getThumb() {
624 return thumb;
625 }
626
627 private Node getTrack() {
628 return track;
629 }
630
631 private Node getIncrementButton() {
632 return incButton;
633 }
634
635 private Node getDecrementButton() {
636 return decButton;
637 }
638
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