在Javas抽象表模型中显示某些列
我试图使用JRadioButtons来显示抽象表中的特定列。 因此，我的表中有两列“已雇用的视频”和“未雇用的视频”。如果单击“显示所有雇用人员”单选按钮，我只想显示其中一列，如果用户单击“显示所有雇用人员”JRadioButton，它将显示这两列 非常感谢您的帮助。接下来，在Javas抽象表模型中显示某些列,java,swing,Java,Swing,我试图使用JRadioButtons来显示抽象表中的特定列。 因此，我的表中有两列“已雇用的视频”和“未雇用的视频”。如果单击“显示所有雇用人员”单选按钮，我只想显示其中一列，如果用户单击“显示所有雇用人员”JRadioButton，它将显示这两列 非常感谢您的帮助。接下来，AbstractTableModel是一个存储数据的模型，JTable为您的模型提供了视图组件 因此，由于您对更改数据的显示方式感兴趣，因此可以调整视图组件（JTable）： 接下来，AbstractTableModel是一
AbstractTableModelJTableJTableAbstractTableModelJTableJTable作为替代方法，您可以创建一个
TableColumnModelimport java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import javax.swing.table.DefaultTableColumnModel;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
import javax.swing.table.TableModel;
/**
* A simple column model to provide
* easy visibility functionality, allowing columns to be easily hidden and shown
*/
public class MutableTableColumnModel extends DefaultTableColumnModel {
private List<TableColumn> allTableColumns;
public MutableTableColumnModel() {
allTableColumns = new ArrayList<TableColumn>(10);
}
/**
* Sets the visibility of the specified TableColumn. The call is ignored if
* the TableColumn is not found in this column model or its visibility status
* did not change.
* <p>
* @param column
* @param visible its new visibility status
*/
public void setColumnVisible(TableColumn column, boolean visible) {
if (!visible) {
super.removeColumn(column);
} else {
// find the visible index of the column:
// iterate through both collections of visible and all columns, counting
// visible columns up to the one that's about to be shown again
int noVisibleColumns = tableColumns.size();
int noInvisibleColumns = allTableColumns.size();
int visibleIndex = 0;
for (int invisibleIndex = 0; invisibleIndex < noInvisibleColumns; ++invisibleIndex) {
TableColumn visibleColumn = (visibleIndex < noVisibleColumns ? (TableColumn) tableColumns.get(visibleIndex) : null);
TableColumn testColumn = (TableColumn) allTableColumns.get(invisibleIndex);
if (testColumn == column) {
if (visibleColumn != column) {
super.addColumn(column);
super.moveColumn(tableColumns.size() - 1, visibleIndex);
}
break;
} else if (testColumn == visibleColumn) {
++visibleIndex;
}
}
}
}
/**
* Makes all columns in this model visible
*/
public void showAllColumns() {
int noColumns = allTableColumns.size();
for (int columnIndex = 0; columnIndex < noColumns; ++columnIndex) {
TableColumn visibleColumn = (columnIndex < tableColumns.size() ? (TableColumn) tableColumns.get(columnIndex) : null);
TableColumn invisibleColumn = (TableColumn) allTableColumns.get(columnIndex);
if (visibleColumn != invisibleColumn) {
super.addColumn(invisibleColumn);
super.moveColumn(tableColumns.size() - 1, columnIndex);
}
}
}
/**
* Maps the index of the column in the table model at
* <code>modelColumnIndex</code> to the TableColumn object. There may me
* multiple TableColumn objects showing the same model column, though this is
* uncommon. This method will always return the first visible or else the
* first invisible column with the specified index.
*
* @param modelColumnIndex index of column in table model
* @return table column object or null if no such column in this column model
*/
public TableColumn getColumnByModelIndex(int modelColumnIndex) {
for (int columnIndex = 0; columnIndex < allTableColumns.size(); ++columnIndex) {
TableColumn column = (TableColumn) allTableColumns.get(columnIndex);
if (column.getModelIndex() == modelColumnIndex) {
return column;
}
}
return null;
}
/**
* Checks wether the specified column is currently visible.
*
* @param aColumn column to check
* @return visibility of specified column (false if there is no such column at
* all. [It's not visible, right?])
*/
public boolean isColumnVisible(TableColumn aColumn) {
return (tableColumns.indexOf(aColumn) >= 0);
}
/**
* Append <code>column</code> to the right of exisiting columns. Posts
* <code>columnAdded</code> event.
*
* @param column The column to be added
* @see #removeColumn
* @exception IllegalArgumentException if <code>column</code> is
* <code>null</code>
*/
public void addColumn(TableColumn column) {
allTableColumns.add(column);
super.addColumn(column);
}
/**
* Removes <code>column</code> from this column model. Posts
* <code>columnRemoved</code> event. Will do nothing if the column is not in
* this model.
*
* @param column the column to be added
* @see #addColumn
*/
public void removeColumn(TableColumn column) {
int allColumnsIndex = allTableColumns.indexOf(column);
if (allColumnsIndex != -1) {
allTableColumns.remove(allColumnsIndex);
}
super.removeColumn(column);
}
/**
* Moves the column from <code>oldIndex</code> to <code>newIndex</code>. Posts
* <code>columnMoved</code> event. Will not move any columns if
* <code>oldIndex</code> equals <code>newIndex</code>.
*
* @param oldIndex index of column to be moved
* @param newIndex new index of the column
* @exception IllegalArgumentException if either <code>oldIndex</code> or
* <code>newIndex</code> are not in [0, getColumnCount() - 1]
*/
public void moveColumn(int oldIndex, int newIndex) {
if ((oldIndex < 0) || (oldIndex >= getColumnCount())
|| (newIndex < 0) || (newIndex >= getColumnCount())) {
throw new IllegalArgumentException("moveColumn() - Index out of range");
}
TableColumn fromColumn = (TableColumn) tableColumns.get(oldIndex);
TableColumn toColumn = (TableColumn) tableColumns.get(newIndex);
int allColumnsOldIndex = allTableColumns.indexOf(fromColumn);
int allColumnsNewIndex = allTableColumns.indexOf(toColumn);
if (oldIndex != newIndex) {
allTableColumns.remove(allColumnsOldIndex);
allTableColumns.add(allColumnsNewIndex, fromColumn);
}
super.moveColumn(oldIndex, newIndex);
}
/**
* Returns the total number of columns in this model.
*
* @param onlyVisible if set only visible columns will be counted
* @return the number of columns in the <code>tableColumns</code> array
* @see #getColumns
*/
public int getColumnCount(boolean onlyVisible) {
List<TableColumn> columns = (onlyVisible ? tableColumns : allTableColumns);
return columns.size();
}
/**
* Returns an <code>Enumeration</code> of all the columns in the model.
*
* @param onlyVisible if set all invisible columns will be missing from the
* enumeration.
* @return an <code>Enumeration</code> of the columns in the model
*/
public Iterator<TableColumn> getColumns(boolean onlyVisible) {
List<TableColumn> columns = (onlyVisible ? tableColumns : allTableColumns);
return Collections.unmodifiableList(columns).iterator();
}
/**
* Returns the position of the first column whose identifier equals
* <code>identifier</code>. Position is the the index in all visible columns
* if <code>onlyVisible</code> is true or else the index in all columns.
*
* @param identifier the identifier object to search for
* @param onlyVisible if set searches only visible columns
*
* @return the index of the first column whose identifier equals
* <code>identifier</code>
*
* @exception IllegalArgumentException if <code>identifier</code> is
* <code>null</code>, or if no <code>TableColumn</code> has this
* <code>identifier</code>
* @see #getColumn
*/
public int getColumnIndex(Object identifier, boolean onlyVisible) {
if (identifier == null) {
throw new IllegalArgumentException("Identifier is null");
}
List<TableColumn> columns = (onlyVisible ? tableColumns : allTableColumns);
int noColumns = columns.size();
TableColumn column;
for (int columnIndex = 0; columnIndex < noColumns; ++columnIndex) {
column = (TableColumn) columns.get(columnIndex);
if (identifier.equals(column.getIdentifier())) {
return columnIndex;
}
}
throw new IllegalArgumentException("Identifier not found");
}
/**
* Returns the <code>TableColumn</code> object for the column at
* <code>columnIndex</code>.
*
* @param columnIndex the index of the column desired
* @param onlyVisible if set columnIndex is meant to be relative to all
* visible columns only else it is the index in all columns
*
* @return the <code>TableColumn</code> object for the column at
* <code>columnIndex</code>
*/
public TableColumn getColumn(int columnIndex, boolean onlyVisible) {
return (onlyVisible ? tableColumns : allTableColumns).get(columnIndex);
}
/**
* Returns all the columns
*
* @return
*/
public TableColumn[] getAllColumns() {
return allTableColumns.toArray(new TableColumn[allTableColumns.size()]);
}
public TableColumn[] getHiddenColumns() {
List<TableColumn> lstColumns = new ArrayList<TableColumn>(10);
for (TableColumn column : getAllColumns()) {
if (!isColumnVisible(column)) {
lstColumns.add(column);
}
}
return lstColumns.toArray(new TableColumn[lstColumns.size()]);
}
public static MutableTableColumnModel createFromTableModel(TableModel model) {
MutableTableColumnModel columnModel = new MutableTableColumnModel();
if (model != null) {
for (int i = 0; i < model.getColumnCount(); i++) {
TableColumn newColumn = new TableColumn(i);
columnModel.addColumn(newColumn);
}
}
return columnModel;
}
}
JTableJTable table = new JTable();
table.setAutoCreateColumnsFromModel(false);
TableModel tm = ...;
table.setModel(tm);
table.setColumnModel(MutableTableColumnModel.createFromTableModel(tm));
MutableColumnModel cm = (MutableColumnModel)table.getColumnnModel();
cm.setColumnVisible(column, false);
JTable table = new JTable();
table.setAutoCreateColumnsFromModel(false);
TableModel tm = ...;
table.setModel(tm);
table.setColumnModel(MutableTableColumnModel.createFromTableModel(tm));
MutableColumnModel cm = (MutableColumnModel)table.getColumnnModel();
cm.setColumnVisible(column, false);
例如…作为一种替代方法，您可以创建一个
TableColumnModelimport java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import javax.swing.table.DefaultTableColumnModel;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
import javax.swing.table.TableModel;
/**
* A simple column model to provide
* easy visibility functionality, allowing columns to be easily hidden and shown
*/
public class MutableTableColumnModel extends DefaultTableColumnModel {
private List<TableColumn> allTableColumns;
public MutableTableColumnModel() {
allTableColumns = new ArrayList<TableColumn>(10);
}
/**
* Sets the visibility of the specified TableColumn. The call is ignored if
* the TableColumn is not found in this column model or its visibility status
* did not change.
* <p>
* @param column
* @param visible its new visibility status
*/
public void setColumnVisible(TableColumn column, boolean visible) {
if (!visible) {
super.removeColumn(column);
} else {
// find the visible index of the column:
// iterate through both collections of visible and all columns, counting
// visible columns up to the one that's about to be shown again
int noVisibleColumns = tableColumns.size();
int noInvisibleColumns = allTableColumns.size();
int visibleIndex = 0;
for (int invisibleIndex = 0; invisibleIndex < noInvisibleColumns; ++invisibleIndex) {
TableColumn visibleColumn = (visibleIndex < noVisibleColumns ? (TableColumn) tableColumns.get(visibleIndex) : null);
TableColumn testColumn = (TableColumn) allTableColumns.get(invisibleIndex);
if (testColumn == column) {
if (visibleColumn != column) {
super.addColumn(column);
super.moveColumn(tableColumns.size() - 1, visibleIndex);
}
break;
} else if (testColumn == visibleColumn) {
++visibleIndex;
}
}
}
}
/**
* Makes all columns in this model visible
*/
public void showAllColumns() {
int noColumns = allTableColumns.size();
for (int columnIndex = 0; columnIndex < noColumns; ++columnIndex) {
TableColumn visibleColumn = (columnIndex < tableColumns.size() ? (TableColumn) tableColumns.get(columnIndex) : null);
TableColumn invisibleColumn = (TableColumn) allTableColumns.get(columnIndex);
if (visibleColumn != invisibleColumn) {
super.addColumn(invisibleColumn);
super.moveColumn(tableColumns.size() - 1, columnIndex);
}
}
}
/**
* Maps the index of the column in the table model at
* <code>modelColumnIndex</code> to the TableColumn object. There may me
* multiple TableColumn objects showing the same model column, though this is
* uncommon. This method will always return the first visible or else the
* first invisible column with the specified index.
*
* @param modelColumnIndex index of column in table model
* @return table column object or null if no such column in this column model
*/
public TableColumn getColumnByModelIndex(int modelColumnIndex) {
for (int columnIndex = 0; columnIndex < allTableColumns.size(); ++columnIndex) {
TableColumn column = (TableColumn) allTableColumns.get(columnIndex);
if (column.getModelIndex() == modelColumnIndex) {
return column;
}
}
return null;
}
/**
* Checks wether the specified column is currently visible.
*
* @param aColumn column to check
* @return visibility of specified column (false if there is no such column at
* all. [It's not visible, right?])
*/
public boolean isColumnVisible(TableColumn aColumn) {
return (tableColumns.indexOf(aColumn) >= 0);
}
/**
* Append <code>column</code> to the right of exisiting columns. Posts
* <code>columnAdded</code> event.
*
* @param column The column to be added
* @see #removeColumn
* @exception IllegalArgumentException if <code>column</code> is
* <code>null</code>
*/
public void addColumn(TableColumn column) {
allTableColumns.add(column);
super.addColumn(column);
}
/**
* Removes <code>column</code> from this column model. Posts
* <code>columnRemoved</code> event. Will do nothing if the column is not in
* this model.
*
* @param column the column to be added
* @see #addColumn
*/
public void removeColumn(TableColumn column) {
int allColumnsIndex = allTableColumns.indexOf(column);
if (allColumnsIndex != -1) {
allTableColumns.remove(allColumnsIndex);
}
super.removeColumn(column);
}
/**
* Moves the column from <code>oldIndex</code> to <code>newIndex</code>. Posts
* <code>columnMoved</code> event. Will not move any columns if
* <code>oldIndex</code> equals <code>newIndex</code>.
*
* @param oldIndex index of column to be moved
* @param newIndex new index of the column
* @exception IllegalArgumentException if either <code>oldIndex</code> or
* <code>newIndex</code> are not in [0, getColumnCount() - 1]
*/
public void moveColumn(int oldIndex, int newIndex) {
if ((oldIndex < 0) || (oldIndex >= getColumnCount())
|| (newIndex < 0) || (newIndex >= getColumnCount())) {
throw new IllegalArgumentException("moveColumn() - Index out of range");
}
TableColumn fromColumn = (TableColumn) tableColumns.get(oldIndex);
TableColumn toColumn = (TableColumn) tableColumns.get(newIndex);
int allColumnsOldIndex = allTableColumns.indexOf(fromColumn);
int allColumnsNewIndex = allTableColumns.indexOf(toColumn);
if (oldIndex != newIndex) {
allTableColumns.remove(allColumnsOldIndex);
allTableColumns.add(allColumnsNewIndex, fromColumn);
}
super.moveColumn(oldIndex, newIndex);
}
/**
* Returns the total number of columns in this model.
*
* @param onlyVisible if set only visible columns will be counted
* @return the number of columns in the <code>tableColumns</code> array
* @see #getColumns
*/
public int getColumnCount(boolean onlyVisible) {
List<TableColumn> columns = (onlyVisible ? tableColumns : allTableColumns);
return columns.size();
}
/**
* Returns an <code>Enumeration</code> of all the columns in the model.
*
* @param onlyVisible if set all invisible columns will be missing from the
* enumeration.
* @return an <code>Enumeration</code> of the columns in the model
*/
public Iterator<TableColumn> getColumns(boolean onlyVisible) {
List<TableColumn> columns = (onlyVisible ? tableColumns : allTableColumns);
return Collections.unmodifiableList(columns).iterator();
}
/**
* Returns the position of the first column whose identifier equals
* <code>identifier</code>. Position is the the index in all visible columns
* if <code>onlyVisible</code> is true or else the index in all columns.
*
* @param identifier the identifier object to search for
* @param onlyVisible if set searches only visible columns
*
* @return the index of the first column whose identifier equals
* <code>identifier</code>
*
* @exception IllegalArgumentException if <code>identifier</code> is
* <code>null</code>, or if no <code>TableColumn</code> has this
* <code>identifier</code>
* @see #getColumn
*/
public int getColumnIndex(Object identifier, boolean onlyVisible) {
if (identifier == null) {
throw new IllegalArgumentException("Identifier is null");
}
List<TableColumn> columns = (onlyVisible ? tableColumns : allTableColumns);
int noColumns = columns.size();
TableColumn column;
for (int columnIndex = 0; columnIndex < noColumns; ++columnIndex) {
column = (TableColumn) columns.get(columnIndex);
if (identifier.equals(column.getIdentifier())) {
return columnIndex;
}
}
throw new IllegalArgumentException("Identifier not found");
}
/**
* Returns the <code>TableColumn</code> object for the column at
* <code>columnIndex</code>.
*
* @param columnIndex the index of the column desired
* @param onlyVisible if set columnIndex is meant to be relative to all
* visible columns only else it is the index in all columns
*
* @return the <code>TableColumn</code> object for the column at
* <code>columnIndex</code>
*/
public TableColumn getColumn(int columnIndex, boolean onlyVisible) {
return (onlyVisible ? tableColumns : allTableColumns).get(columnIndex);
}
/**
* Returns all the columns
*
* @return
*/
public TableColumn[] getAllColumns() {
return allTableColumns.toArray(new TableColumn[allTableColumns.size()]);
}
public TableColumn[] getHiddenColumns() {
List<TableColumn> lstColumns = new ArrayList<TableColumn>(10);
for (TableColumn column : getAllColumns()) {
if (!isColumnVisible(column)) {
lstColumns.add(column);
}
}
return lstColumns.toArray(new TableColumn[lstColumns.size()]);
}
public static MutableTableColumnModel createFromTableModel(TableModel model) {
MutableTableColumnModel columnModel = new MutableTableColumnModel();
if (model != null) {
for (int i = 0; i < model.getColumnCount(); i++) {
TableColumn newColumn = new TableColumn(i);
columnModel.addColumn(newColumn);
}
}
return columnModel;
}
}
JTableJTable table = new JTable();
table.setAutoCreateColumnsFromModel(false);
TableModel tm = ...;
table.setModel(tm);
table.setColumnModel(MutableTableColumnModel.createFromTableModel(tm));
MutableColumnModel cm = (MutableColumnModel)table.getColumnnModel();
cm.setColumnVisible(column, false);
JTable table = new JTable();
table.setAutoCreateColumnsFromModel(false);
TableModel tm = ...;
table.setModel(tm);
table.setColumnModel(MutableTableColumnModel.createFromTableModel(tm));
MutableColumnModel cm = (MutableColumnModel)table.getColumnnModel();
cm.setColumnVisible(column, false);
例如…另一种方法是创建一个类来管理列的可见性 看看这本书。您可以在任何
JTableTableColumnManagerTableColumnManagerTableColumnsJTableTableColumnManagerTableColumnManagerTableColumnsTableColumnModelTableColumnModelcreateFromTableModel（…）newColumn.setHeaderValue（model.getColumnName（i））JTablecreateDefaultColumnsFromModelcreateFromTableModel（…）newColumn.setHeaderValue（model.getColumnName（I））JTablecreateDefaultColumnsFromModel唯一的问题是如果你有几十个专栏的话唯一的问题是如果你有几十个专栏的话