blob: a5cc9487f7faf079d2eca7a5e6272804aaddf3a4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/*
* Copyright 2000-2022 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.v7.client.widget.grid;
import com.google.gwt.dom.client.TableCellElement;
import com.vaadin.v7.client.widgets.Grid;
/**
* A data class which contains information which identifies a cell in a
* {@link Grid}.
* <p>
* Since this class follows the <code>Flyweight</code>-pattern any instance of
* this object is subject to change without the user knowing it and so should
* not be stored anywhere outside of the method providing these instances.
*
* @author Vaadin Ltd
* @param <T>
* the type of the row object containing this cell
* @since 7.4
*/
public class CellReference<T> {
private int columnIndexDOM;
private int columnIndex;
private Grid.Column<?, T> column;
private final RowReference<T> rowReference;
public CellReference(RowReference<T> rowReference) {
this.rowReference = rowReference;
}
/**
* Sets the identifying information for this cell.
* <p>
* The difference between {@link #columnIndexDOM} and {@link #columnIndex}
* comes from hidden columns.
*
* @param columnIndexDOM
* the index of the column in the DOM
* @param columnIndex
* the index of the column
* @param column
* the column object
*/
public void set(int columnIndexDOM, int columnIndex,
Grid.Column<?, T> column) {
this.columnIndexDOM = columnIndexDOM;
this.columnIndex = columnIndex;
this.column = column;
}
/**
* Gets the grid that contains the referenced cell.
*
* @return the grid that contains referenced cell
*/
public Grid<T> getGrid() {
return rowReference.getGrid();
}
/**
* Gets the row index of the row.
*
* @return the index of the row
*/
public int getRowIndex() {
return rowReference.getRowIndex();
}
/**
* Gets the row data object.
*
* @return the row object
*/
public T getRow() {
return rowReference.getRow();
}
/**
* Gets the index of the column.
* <p>
* <em>NOTE:</em> The index includes hidden columns in the count, unlike
* {@link #getColumnIndexDOM()}.
*
* @return the index of the column
*/
public int getColumnIndex() {
return columnIndex;
}
/**
* Gets the index of the cell in the DOM. The difference to
* {@link #getColumnIndex()} is caused by hidden columns.
*
* @since 7.5.0
* @return the index of the column in the DOM
*/
public int getColumnIndexDOM() {
return columnIndexDOM;
}
/**
* Gets the column objects.
*
* @return the column object
*/
public Grid.Column<?, T> getColumn() {
return column;
}
/**
* Gets the value of the cell.
*
* @return the value of the cell
*/
public Object getValue() {
return getColumn().getValue(getRow());
}
/**
* Get the element of the cell.
*
* @return the element of the cell
*/
public TableCellElement getElement() {
return rowReference.getElement().getCells().getItem(columnIndexDOM);
}
/**
* Gets the RowReference for this CellReference.
*
* @return the row reference
*/
protected RowReference<T> getRowReference() {
return rowReference;
}
}
|
