1 /*
2 * Copyright (c) 2011, 2016, 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.beans.property.ReadOnlyObjectProperty;
34 import javafx.scene.Node;
35 import javafx.scene.control.Accordion;
36 import javafx.scene.control.Control;
37 import javafx.scene.control.IndexedCell;
38 import javafx.scene.control.TableColumnBase;
39 import javafx.scene.shape.Rectangle;
40
41 /**
42 * Base skin for table cell controls, for example:
43 * {@link javafx.scene.control.TableCell} and {@link javafx.scene.control.TreeTableCell}.
44 *
45 * @param <S> The type of the UI control (e.g. the type of the 'row').
46 * @param <T> The type of the content in the cell, based on its {@link TableColumnBase}.
47 * @see javafx.scene.control.TableCell
48 * @see javafx.scene.control.TreeTableCell
49 * @since 9
50 */
51 public abstract class TableCellSkinBase<S, T, C extends IndexedCell<T>> extends CellSkinBase<C> {
52
53 /***************************************************************************
54 * *
55 * Private Fields *
56 * *
57 **************************************************************************/
58
59 boolean isDeferToParentForPrefWidth = false;
60
61
62
63 /***************************************************************************
64 * *
65 * Constructors *
66 * *
67 **************************************************************************/
68
69 /**
70 * Creates a new TableCellSkinBase instance, installing the necessary child
71 * nodes into the Control {@link Control#getChildren() children} list, as
72 * well as the necessary input mappings for handling key, mouse, etc events.
73 *
74 * @param control The control that this skin should be installed onto.
75 */
76 public TableCellSkinBase(final C control) {
77 super(control);
78
79 // RT-22038
80 Rectangle clip = new Rectangle();
81 clip.widthProperty().bind(control.widthProperty());
82 clip.heightProperty().bind(control.heightProperty());
83 getSkinnable().setClip(clip);
84 // --- end of RT-22038
85
86 TableColumnBase<?,?> tableColumn = getTableColumn();
87 if (tableColumn != null) {
88 tableColumn.widthProperty().addListener(weakColumnWidthListener);
89 }
90
91 if (control.getProperties().containsKey(Properties.DEFER_TO_PARENT_PREF_WIDTH)) {
92 isDeferToParentForPrefWidth = true;
93 }
94 }
95
96
97
98 /***************************************************************************
99 * *
100 * Listeners *
101 * *
102 **************************************************************************/
103
104 private InvalidationListener columnWidthListener = valueModel -> getSkinnable().requestLayout();
105
106 private WeakInvalidationListener weakColumnWidthListener =
107 new WeakInvalidationListener(columnWidthListener);
108
109
110
111 /***************************************************************************
112 * *
113 * Abstract Methods *
114 * *
115 **************************************************************************/
116
117 /**
118 * The TableColumnBase instance that is responsible for this Cell.
119 * @return the TableColumnBase instance that is responsible for this Cell
120 */
121 public abstract ReadOnlyObjectProperty<? extends TableColumnBase<S,T>> tableColumnProperty();
122 public final TableColumnBase<S,T> getTableColumn() {
123 return tableColumnProperty().get();
124 }
125
126
127
128 /***************************************************************************
129 * *
130 * Public Methods *
131 * *
132 **************************************************************************/
133
134 /** {@inheritDoc} */
135 @Override public void dispose() {
136 TableColumnBase<?,T> tableColumn = getTableColumn();
137 if (tableColumn != null) {
138 tableColumn.widthProperty().removeListener(weakColumnWidthListener);
139 }
140
141 super.dispose();
142 }
143
144 /** {@inheritDoc} */
145 @Override protected void layoutChildren(final double x, final double y,
146 final double w, final double h) {
147 // fit the cell within this space
148 // FIXME the subtraction of bottom padding isn't right here - but it
149 // results in better visuals, so I'm leaving it in place for now.
150 layoutLabelInArea(x, y, w, h - getSkinnable().getPadding().getBottom());
151 }
152
153 /** {@inheritDoc} */
154 @Override protected double computePrefWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset) {
155 if (isDeferToParentForPrefWidth) {
156 return super.computePrefWidth(height, topInset, rightInset, bottomInset, leftInset);
157 }
158
159 TableColumnBase<?,?> tableColumn = getTableColumn();
160 return tableColumn == null ? 0 : snapSizeX(tableColumn.getWidth());
161 }
162 }