RowSorter未在渲染器中设置
我在jTable中实现了对列进行排序的图标。 我有一个查找结果的按钮，我启动工作时实现默认排序。 像这样：
public void refreshStripedViewTable(final List<FlightBox> boxList,
final List<FlightBoxModel> boxesModels, final String sortBy) {
if (boxList != null && !boxList.isEmpty()) {
stripedViewTableModel.setContent(boxesModels);
tableRenderer.setStripedViewModelList(boxesModels);
final RowSorter<? extends TableModel> sorter = tableFacade
.getTooltipsTable().getRowSorter();
if (sorter != null) {
List<SortKey> sortKeys = new ArrayList<SortKey>();
javax.swing.RowSorter.SortKey sk = new SortKey(getColumnIndex(
sortBy, tableFacade.getTooltipsTable()),
SortOrder.ASCENDING);
sortKeys.add(sk);
sorter.setSortKeys(sortKeys);
tableFacade.getTooltipsTable().setRowSorter(sorter);
tableFacade.getTooltipsTable().validate();
tableFacade.getTooltipsTable().getModelTable()
.fireTableDataChanged();
}
}
}
当用户点击我的JTable上的标题时，我为setIcon添加了一个渲染器。
public Component getTableCellRendererComponent(final JTable table,
final Object value, final boolean isSelected, final boolean hasFocus,
final int row, final int column) {
setIcon(null);
super.getTableCellRendererComponent(table, value, isSelected, hasFocus,
row, column);
setOpaque(false);
setForeground(Color.white);
final RowSorter<?> sorter = table.getRowSorter();
if (sorter != null) {
java.util.List<? extends javax.swing.RowSorter.SortKey> sortKeys = sorter
.getSortKeys();
if (sortKeys.size() > 0) {
javax.swing.RowSorter.SortKey sk = sortKeys.get(0);
// take in account if the user moves the column
if (column == table.convertColumnIndexToView(sk.getColumn())) {
Icon icon = null;
if (sk.getSortOrder() == SortOrder.ASCENDING) {
icon = iconService
.getRessourceIcon(MediaHmiService.TABLE_SORT_ORDER_ASCENDING);
} else if (sk.getSortOrder() == SortOrder.DESCENDING) {
icon = iconService
.getRessourceIcon(MediaHmiService.TABLE_SORT_ORDER_DESCENDING);
}
setIcon(icon);
}
}
}
setHorizontalTextPosition(SwingConstants.LEFT);
return this;
}
我这样做时遇到问题： - 找到结果 - ＆gt;图标在默认列排序上设置好 - 单击标题以设置图标确定 - 重新启动搜索 - ＆gt;没有图标可见.KO 我的渲染器没有sortKeys，但我在我的方法中设置了rowSorter refreshStripedViewTable（）。我不明白为什么......
谢谢你们的帮助。 问候。
2 个答案:
答案 0 :(得分：1)
-
请注意
SortOrder有三种类型
-
ASCENDING
-
DESCENDING
-
UNSORTED
f.i。
import java.awt.Component;
import java.util.ArrayList;
import java.util.List;
import javax.swing.Icon;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.RowSorter;
import javax.swing.SortOrder;
import javax.swing.UIManager;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
public class RowSorterDefaults {
private static final long serialVersionUID = 1L;
private JFrame frame = new JFrame();
private JScrollPane pane = new javax.swing.JScrollPane();
private JTable table = new javax.swing.JTable();
public RowSorterDefaults() {
table.setModel(new javax.swing.table.DefaultTableModel(
new Object[][]{
{"a", "q", "h", "v"}, {"b", "m", "l", "h"},
{"d", "c", "a", "d"}, {"j", "o", "y", "e"}
},
new String[]{
"Col 1", "Col 2", "Col 3", "Col 4"
}) {
private static final long serialVersionUID = 1L;
Class[] types = new Class[]{
String.class, String.class, String.class, String.class
};
@Override
public Class getColumnClass(int columnIndex) {
return types[columnIndex];
}
});
TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(table.getModel()) {
@Override
public void toggleSortOrder(int column) {
if (column >= 0 && column < getModelWrapper().getColumnCount() && isSortable(column)) {
List<SortKey> keys = new ArrayList<SortKey>(getSortKeys());
if (!keys.isEmpty()) {
SortKey sortKey = keys.get(0);
if (sortKey.getColumn()
== column && sortKey.getSortOrder()
== SortOrder.DESCENDING) {//UNSORTED, ASCENDING
setSortKeys(null);
return;
}
}
}
super.toggleSortOrder(column);
}
};
table.setRowSorter(sorter);
table.setPreferredScrollableViewportSize(table.getPreferredSize());
table.setDefaultRenderer(RowSorterDefaults.class, new HeaderRenderer(table));
pane.setViewportView(table);
frame.setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
frame.add(pane);
frame.pack();
frame.setVisible(true);
}
class HeaderRenderer implements TableCellRenderer {
final TableCellRenderer renderer;
public HeaderRenderer(JTable table) {
renderer = table.getTableHeader().getDefaultRenderer();
}
@Override
public Component getTableCellRendererComponent(
JTable table, Object value, boolean isSelected,
boolean hasFocus, int row, int col) {
return renderer.getTableCellRendererComponent(
table, value, isSelected, hasFocus, row, col);
}
public Icon getIcon(JTable table, int column) {
for (RowSorter.SortKey sortKey : table.getRowSorter().getSortKeys()) {
if (sortKey.getColumn() == column) {
switch (sortKey.getSortOrder()) {
case ASCENDING:
return (UIManager.getIcon("Table.ascendingSortIcon"));
case DESCENDING:
return (UIManager.getIcon("Table.descendingSortIcon"));
}
}
}
return null;
}
}
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new RowSorterDefaults();
}
});
}
}
答案 1 :(得分：1)
我这样做时遇到问题： - 找到结果 - ＆gt;图标设置为 默认列排序确定 - 单击标题以设置图标确定 - 重新启动 搜索 - ＆gt;没有图标可见.KO我的渲染器没有sortKeys但是 我在我的方法refreshStripedViewTable（）中设置了rowSorter。我没有 明白为什么......
图标作为默认值添加到UIManager，然后当前JVM中的所有JTable都具有相同的图标
-
ASCENDING
-
DESCENDING
-
UNSORTED
f.i。
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.util.ArrayList;
import java.util.List;
import javax.swing.Icon;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SortOrder;
import javax.swing.UIManager;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
public class RowSorterCustom {
private static final long serialVersionUID = 1L;
private JFrame frame = new JFrame();
private JScrollPane pane = new javax.swing.JScrollPane();
private JTable table = new javax.swing.JTable();
public RowSorterCustom() {
table.setModel(new javax.swing.table.DefaultTableModel(
new Object[][]{
{"a", "q", "h", "v"}, {"b", "m", "l", "h"},
{"d", "c", "a", "d"}, {"j", "o", "y", "e"}
},
new String[]{
"Col 1", "Col 2", "Col 3", "Col 4"
}) {
private static final long serialVersionUID = 1L;
Class[] types = new Class[]{
String.class, String.class, String.class, String.class
};
@Override
public Class getColumnClass(int columnIndex) {
return types[columnIndex];
}
});
TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(table.getModel()) {
@Override
public void toggleSortOrder(int column) {
if (column >= 0 && column < getModelWrapper().getColumnCount() && isSortable(column)) {
List<SortKey> keys = new ArrayList<SortKey>(getSortKeys());
if (!keys.isEmpty()) {
SortKey sortKey = keys.get(0);
if (sortKey.getColumn()
== column && sortKey.getSortOrder()
== SortOrder.DESCENDING) {//UNSORTED, ASCENDING
setSortKeys(null);
return;
}
}
}
super.toggleSortOrder(column);
}
};
table.setRowSorter(sorter);
table.setPreferredScrollableViewportSize(table.getPreferredSize());
pane.setViewportView(table);
frame.setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
frame.add(pane);
frame.pack();
frame.setVisible(true);
}
static class BevelArrowIcon implements Icon {
public static final int UP = 0; // direction
public static final int DOWN = 1;
private static final int DEFAULT_SIZE = 11;
private Color edge1;
private Color edge2;
private Color fill;
private int size;
private int direction;
public BevelArrowIcon(int direction, boolean isRaisedView, boolean isPressedView) {
if (isRaisedView) {
if (isPressedView) {
init(UIManager.getColor("controlLtHighlight"),
UIManager.getColor("controlDkShadow"),
UIManager.getColor("controlShadow"),
DEFAULT_SIZE, direction);
} else {
init(UIManager.getColor("controlHighlight"),
UIManager.getColor("controlShadow"),
UIManager.getColor("control"),
DEFAULT_SIZE, direction);
}
} else {
if (isPressedView) {
init(UIManager.getColor("controlDkShadow"),
UIManager.getColor("controlLtHighlight"),
UIManager.getColor("controlShadow"),
DEFAULT_SIZE, direction);
} else {
init(UIManager.getColor("controlShadow"),
UIManager.getColor("controlHighlight"),
UIManager.getColor("control"),
DEFAULT_SIZE, direction);
}
}
}
public BevelArrowIcon(Color edge1, Color edge2, Color fill, int size, int direction) {
init(edge1, edge2, fill, size, direction);
}
@Override
public void paintIcon(Component c, Graphics g, int x, int y) {
switch (direction) {
case DOWN:
drawDownArrow(g, x, y);
break;
case UP:
drawUpArrow(g, x, y);
break;
}
}
@Override
public int getIconWidth() {
return size;
}
@Override
public int getIconHeight() {
return size;
}
private void init(Color edge1, Color edge2, Color fill, int size, int direction) {
edge1 = Color.red;
edge2 = Color.blue;
this.edge1 = edge1;
this.edge2 = edge2;
this.fill = fill;
this.size = size;
this.direction = direction;
}
private void drawDownArrow(Graphics g, int xo, int yo) {
g.setColor(edge1);
g.drawLine(xo, yo, xo + size - 1, yo);
g.drawLine(xo, yo + 1, xo + size - 3, yo + 1);
g.setColor(edge2);
g.drawLine(xo + size - 2, yo + 1, xo + size - 1, yo + 1);
int x = xo + 1;
int y = yo + 2;
int dx = size - 6;
while (y + 1 < yo + size) {
g.setColor(edge1);
g.drawLine(x, y, x + 1, y);
g.drawLine(x, y + 1, x + 1, y + 1);
if (0 < dx) {
g.setColor(fill);
g.drawLine(x + 2, y, x + 1 + dx, y);
g.drawLine(x + 2, y + 1, x + 1 + dx, y + 1);
}
g.setColor(edge2);
g.drawLine(x + dx + 2, y, x + dx + 3, y);
g.drawLine(x + dx + 2, y + 1, x + dx + 3, y + 1);
x += 1;
y += 2;
dx -= 2;
}
g.setColor(edge1);
g.drawLine(xo + (size / 2), yo + size - 1, xo + (size / 2), yo + size - 1);
}
private void drawUpArrow(Graphics g, int xo, int yo) {
g.setColor(edge1);
int x = xo + (size / 2);
g.drawLine(x, yo, x, yo);
x--;
int y = yo + 1;
int dx = 0;
while (y + 3 < yo + size) {
g.setColor(edge1);
g.drawLine(x, y, x + 1, y);
g.drawLine(x, y + 1, x + 1, y + 1);
if (0 < dx) {
g.setColor(fill);
g.drawLine(x + 2, y, x + 1 + dx, y);
g.drawLine(x + 2, y + 1, x + 1 + dx, y + 1);
}
g.setColor(edge2);
g.drawLine(x + dx + 2, y, x + dx + 3, y);
g.drawLine(x + dx + 2, y + 1, x + dx + 3, y + 1);
x -= 1;
y += 2;
dx += 2;
}
g.setColor(edge1);
g.drawLine(xo, yo + size - 3, xo + 1, yo + size - 3);
g.setColor(edge2);
g.drawLine(xo + 2, yo + size - 2, xo + size - 1, yo + size - 2);
g.drawLine(xo, yo + size - 1, xo + size, yo + size - 1);
}
}
public static void main(String args[]) {
UIManager.getLookAndFeelDefaults().put("Table.ascendingSortIcon", new BevelArrowIcon(BevelArrowIcon.UP, false, false));
UIManager.getLookAndFeelDefaults().put("Table.descendingSortIcon", new BevelArrowIcon(BevelArrowIcon.DOWN, false, false));
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new RowSorterCustom();
}
});
}
}
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