8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.javafx.scene.layout;
27
28 import com.sun.javafx.scene.ParentHelper;
29 import com.sun.javafx.sg.prism.NGNode;
30 import com.sun.javafx.util.Utils;
31 import javafx.scene.Node;
32 import javafx.scene.layout.Region;
33
34 /**
35 * Used to access internal methods of Region.
36 */
37 public class RegionHelper extends ParentHelper {
38
39 private static final RegionHelper theInstance;
40 private static RegionAccessor regionAccessor;
41
42 static {
43 theInstance = new RegionHelper();
44 Utils.forceInit(Region.class);
45 }
46
47 private static RegionHelper getInstance() {
48 return theInstance;
49 }
50
51 public static void initHelper(Region region) {
52 setHelper(region, getInstance());
53 }
54
55 @Override
56 protected NGNode createPeerImpl(Node node) {
57 return regionAccessor.doCreatePeer(node);
58 }
59
60 @Override
61 protected void updatePeerImpl(Node node) {
62 super.updatePeerImpl(node);
63 regionAccessor.doUpdatePeer(node);
64 }
65
66 public static void setRegionAccessor(final RegionAccessor newAccessor) {
67 if (regionAccessor != null) {
68 throw new IllegalStateException();
69 }
70
71 regionAccessor = newAccessor;
72 }
73
74 public interface RegionAccessor {
75 void doUpdatePeer(Node node);
76 NGNode doCreatePeer(Node node);
77 }
78
79 }
|
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.javafx.scene.layout;
27
28 import com.sun.javafx.geom.BaseBounds;
29 import com.sun.javafx.geom.PickRay;
30 import com.sun.javafx.geom.transform.BaseTransform;
31 import com.sun.javafx.scene.ParentHelper;
32 import com.sun.javafx.scene.input.PickResultChooser;
33 import com.sun.javafx.sg.prism.NGNode;
34 import com.sun.javafx.util.Utils;
35 import javafx.geometry.Bounds;
36 import javafx.scene.Node;
37 import javafx.scene.layout.Region;
38
39 /**
40 * Used to access internal methods of Region.
41 */
42 public class RegionHelper extends ParentHelper {
43
44 private static final RegionHelper theInstance;
45 private static RegionAccessor regionAccessor;
46
47 static {
48 theInstance = new RegionHelper();
49 Utils.forceInit(Region.class);
50 }
51
52 private static RegionHelper getInstance() {
53 return theInstance;
54 }
55
56 public static void initHelper(Region region) {
57 setHelper(region, getInstance());
58 }
59
60 @Override
61 protected NGNode createPeerImpl(Node node) {
62 return regionAccessor.doCreatePeer(node);
63 }
64
65 @Override
66 protected void updatePeerImpl(Node node) {
67 super.updatePeerImpl(node);
68 regionAccessor.doUpdatePeer(node);
69 }
70
71 @Override
72 protected Bounds computeLayoutBoundsImpl(Node node) {
73 return regionAccessor.doComputeLayoutBounds(node);
74 }
75
76 @Override
77 protected BaseBounds computeGeomBoundsImpl(Node node, BaseBounds bounds,
78 BaseTransform tx) {
79 regionAccessor.doComputeGeomBounds(node, bounds, tx);
80 // NOTE: Okay to call computeGeomBoundsImpl with tx even in the 3D case
81 // since Parent's computeGeomBoundsImpl does handle 3D correctly.
82 BaseBounds cb = super.computeGeomBoundsImpl(node, bounds, tx);
83 return regionAccessor.doComputeGeomBounds2(cb, node, bounds, tx);
84 }
85
86 @Override
87 protected boolean computeContainsImpl(Node node, double localX, double localY) {
88 return regionAccessor.doComputeContains(node, localX, localY);
89 }
90
91 @Override
92 protected void notifyLayoutBoundsChangedImpl(Node node) {
93 regionAccessor.doNotifyLayoutBoundsChanged(node);
94 }
95 @Override
96 protected void pickNodeLocalImpl(Node node, PickRay localPickRay,
97 PickResultChooser result) {
98 regionAccessor.doPickNodeLocal(node, localPickRay, result);
99 }
100
101 public static void setRegionAccessor(final RegionAccessor newAccessor) {
102 if (regionAccessor != null) {
103 throw new IllegalStateException();
104 }
105
106 regionAccessor = newAccessor;
107 }
108
109 public interface RegionAccessor {
110 void doUpdatePeer(Node node);
111 NGNode doCreatePeer(Node node);
112 Bounds doComputeLayoutBounds(Node node);
113 BaseBounds doComputeGeomBounds(Node node, BaseBounds bounds, BaseTransform tx);
114 BaseBounds doComputeGeomBounds2(BaseBounds cb, Node node, BaseBounds bounds, BaseTransform tx);
115 boolean doComputeContains(Node node, double localX, double localY);
116 void doNotifyLayoutBoundsChanged(Node node);
117 void doPickNodeLocal(Node node, PickRay localPickRay,
118 PickResultChooser result);
119 }
120
121 }
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