1 /*
2 * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
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 javafx.scene.control.skin;
27
28 import com.sun.javafx.scene.control.Properties;
29 import javafx.beans.InvalidationListener;
30 import javafx.beans.WeakInvalidationListener;
31 import javafx.beans.property.BooleanProperty;
32 import javafx.beans.property.ReadOnlyDoubleProperty;
33 import javafx.scene.Node;
34 import javafx.scene.control.Accordion;
35 import javafx.scene.control.Control;
36 import javafx.scene.control.IndexedCell;
37 import javafx.scene.shape.Rectangle;
38
39 /**
40 * Base skin for table cell controls, for example:
41 * {@link javafx.scene.control.TableCell} and {@link javafx.scene.control.TreeTableCell}.
42 *
43 * @see javafx.scene.control.TableCell
44 * @see javafx.scene.control.TreeTableCell
45 * @since 9
46 */
47 public abstract class TableCellSkinBase<C extends IndexedCell> extends CellSkinBase<C> {
48
49 /***************************************************************************
50 * *
51 * Private Fields *
52 * *
53 **************************************************************************/
54
55 boolean isDeferToParentForPrefWidth = false;
56
57
58
59 /***************************************************************************
60 * *
61 * Constructors *
62 * *
63 **************************************************************************/
64
65 /**
66 * Creates a new TableCellSkinBase instance, installing the necessary child
67 * nodes into the Control {@link Control#getChildren() children} list, as
68 * well as the necessary {@link Node#getInputMap() input mappings} for
69 * handling key, mouse, etc events.
70 *
71 * @param control The control that this skin should be installed onto.
72 */
73 public TableCellSkinBase(final C control) {
74 super(control);
75
76 // RT-22038
77 Rectangle clip = new Rectangle();
78 clip.widthProperty().bind(control.widthProperty());
79 clip.heightProperty().bind(control.heightProperty());
80 getSkinnable().setClip(clip);
81 // --- end of RT-22038
82
83 ReadOnlyDoubleProperty columnWidthProperty = columnWidthProperty();
84 if (columnWidthProperty != null) {
85 columnWidthProperty.addListener(weakColumnWidthListener);
86 }
87
88 registerChangeListener(control.visibleProperty(), e -> getSkinnable().setVisible(columnVisibleProperty().get()));
89
90 if (control.getProperties().containsKey(Properties.DEFER_TO_PARENT_PREF_WIDTH)) {
91 isDeferToParentForPrefWidth = true;
92 }
93 }
94
95
96
97 /***************************************************************************
98 * *
99 * Listeners *
100 * *
101 **************************************************************************/
102
103 private InvalidationListener columnWidthListener = valueModel -> getSkinnable().requestLayout();
104
105 private WeakInvalidationListener weakColumnWidthListener =
106 new WeakInvalidationListener(columnWidthListener);
107
108
109
110 /***************************************************************************
111 * *
112 * Abstract Methods *
113 * *
114 **************************************************************************/
115
116 // Equivalent to tableColumn.widthProperty()
117 abstract ReadOnlyDoubleProperty columnWidthProperty();
118
119 // Equivalent to tableColumn.visibleProperty()
120 abstract BooleanProperty columnVisibleProperty();
121
122
123
124 /***************************************************************************
125 * *
126 * Public Methods *
127 * *
128 **************************************************************************/
129
130 /** {@inheritDoc} */
131 @Override public void dispose() {
132 ReadOnlyDoubleProperty columnWidthProperty = columnWidthProperty();
133 if (columnWidthProperty != null) {
134 columnWidthProperty.removeListener(weakColumnWidthListener);
135 }
136
137 super.dispose();
138 }
139
140 /** {@inheritDoc} */
141 @Override protected void layoutChildren(final double x, final double y,
142 final double w, final double h) {
143 // fit the cell within this space
144 // FIXME the subtraction of bottom padding isn't right here - but it
145 // results in better visuals, so I'm leaving it in place for now.
146 layoutLabelInArea(x, y, w, h - getSkinnable().getPadding().getBottom());
147 }
148
149 /** {@inheritDoc} */
150 @Override protected double computePrefWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset) {
151 if (isDeferToParentForPrefWidth) {
152 return super.computePrefWidth(height, topInset, rightInset, bottomInset, leftInset);
153 }
154 return columnWidthProperty().get();
155 }
156 }