定制的JTable外观

必要的对象... private JTable table1;private DefaultTableModel table1Model;private JScrollPane scrollPane1;String[] columnName = {"Button", "Boolean", "Int" };并在创建表的代码下... { JToggleButton[] jTableButton = new JToggleButton[] { new JToggleButton("one"), new JToggleButton("two"), new JToggleButton("three"), new JToggleButton("four")}; table1Model = new DefaultTableModel( new Object[][] { { jTableButton[0], false, 1 }, { jTableButton[1], false, 1 }, { jTableButton[2], false, 1 }, { jTableButton[3], false, 1 }}, columnName); table1 = new JTable(table1Model){ /** * */ private static final long serialVersionUID = 1L; @Override public boolean isCellEditable(int rowIndex, int colIndex) { int value = (Integer) table1Model.getValueAt(rowIndex, 2); String blueColor = Color.BLUE; String redColor = Color.RED; String selectedColor = Color.GREEN; String colorValue = selectedColor; if ( value > 0) { colorValue = blueColor; //blue } else { colorValue = redColor; //red } return !colorValue.equals(redColor); // Disallow the editing of red cell } @Override public Class<?> getColumnClass(int c) { return getValueAt(0, c).getClass(); } @Override public Component prepareRenderer(TableCellRenderer renderer,int rowIndex, int vColIndex) { int value = (Integer) table1Model.getValueAt(rowIndex, 2); String blueColor = Color.BLUE; String redColor = Color.RED; String selectedColor = Color.GREEN; String colorValue = selectedColor; if ( value > 0) { colorValue = blueColor; //blue } else { colorValue = redColor; //red } Component c = super.prepareRenderer(renderer, rowIndex, vColIndex); if (!isCellSelected(rowIndex, vColIndex)) { if (vColIndex != 0 ) { c.setEnabled(!colorValue.equals(redColor)); } else { c.setEnabled(!colorValue.equals(redColor)); if (colorValue.equals(redColor)) c.setBackground(Color.decode(colorValue)); } if (c instanceof JToggleButton && vColIndex == 0){ JToggleButton button = (JToggleButton) c; button.setToolTipText(((JToggleButton) c).getText()); } if ( Color.decode(colorValue).getRed() >= 224 && Color.decode(colorValue).getGreen() >= 224 && Color.decode(colorValue).getBlue() >= 224){ c.setForeground(Color.gray); } else { c.setForeground(Color.white); } } return c; } }; scrollPane1.setViewportView(table1); table1.setPreferredSize(new java.awt.Dimension(187,290)); table1.setFont(new java.awt.Font("Segoe UI",0,14)); table1.getColumnModel().getColumn(0).setCellRenderer(new JToggleButtonRenderer()); } JToggleButtonRenderer.java class JToggleButtonRenderer extends JToggleButton implements TableCellRenderer { /** * */ private static final long serialVersionUID = 1L; public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { if (value == null) return null; if (isSelected) { // cell (and perhaps other cells) are selected } if (hasFocus) { // this cell is the anchor and the table has the focus } return (Component) value; } // The following methods override the defaults for performance reasons @Override public void validate() {} @Override public void revalidate() {} @Override protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) {} @Override public void firePropertyChange(String propertyName, boolean oldValue, boolean newValue) {}}如您所见，重要的部分是表模型table1Model要添加新行... //id is something you want put on the button texttable1Model.addRow(new Object[] { new JToggleButton(id), false, 1} ); 已添加了丢失的JToggleButton单元格渲染器I want to create a JTable with few columns which has JButtons on it. I can create JCheckBoxes and also JComboBoxes in the JTable cells but not the JButtons. How do i do this ? 解决方案 In my project, this is how I did it for a 4-row table with 3 columns where the first column has JToggleButton in every row:The necessary objects...private JTable table1;private DefaultTableModel table1Model;private JScrollPane scrollPane1;String[] columnName = {"Button", "Boolean", "Int" };and under the code where we create the table... { JToggleButton[] jTableButton = new JToggleButton[] { new JToggleButton("one"), new JToggleButton("two"), new JToggleButton("three"), new JToggleButton("four")}; table1Model = new DefaultTableModel( new Object[][] { { jTableButton[0], false, 1 }, { jTableButton[1], false, 1 }, { jTableButton[2], false, 1 }, { jTableButton[3], false, 1 }}, columnName); table1 = new JTable(table1Model){ /** * */ private static final long serialVersionUID = 1L; @Override public boolean isCellEditable(int rowIndex, int colIndex) { int value = (Integer) table1Model.getValueAt(rowIndex, 2); String blueColor = Color.BLUE; String redColor = Color.RED; String selectedColor = Color.GREEN; String colorValue = selectedColor; if ( value > 0) { colorValue = blueColor; //blue } else { colorValue = redColor; //red } return !colorValue.equals(redColor); // Disallow the editing of red cell } @Override public Class<?> getColumnClass(int c) { return getValueAt(0, c).getClass(); } @Override public Component prepareRenderer(TableCellRenderer renderer,int rowIndex, int vColIndex) { int value = (Integer) table1Model.getValueAt(rowIndex, 2); String blueColor = Color.BLUE; String redColor = Color.RED; String selectedColor = Color.GREEN; String colorValue = selectedColor; if ( value > 0) { colorValue = blueColor; //blue } else { colorValue = redColor; //red } Component c = super.prepareRenderer(renderer, rowIndex, vColIndex); if (!isCellSelected(rowIndex, vColIndex)) { if (vColIndex != 0 ) { c.setEnabled(!colorValue.equals(redColor)); } else { c.setEnabled(!colorValue.equals(redColor)); if (colorValue.equals(redColor)) c.setBackground(Color.decode(colorValue)); } if (c instanceof JToggleButton && vColIndex == 0){ JToggleButton button = (JToggleButton) c; button.setToolTipText(((JToggleButton) c).getText()); } if ( Color.decode(colorValue).getRed() >= 224 && Color.decode(colorValue).getGreen() >= 224 && Color.decode(colorValue).getBlue() >= 224){ c.setForeground(Color.gray); } else { c.setForeground(Color.white); } } return c; } }; scrollPane1.setViewportView(table1); table1.setPreferredSize(new java.awt.Dimension(187,290)); table1.setFont(new java.awt.Font("Segoe UI",0,14)); table1.getColumnModel().getColumn(0).setCellRenderer(new JToggleButtonRenderer()); }JToggleButtonRenderer.javaclass JToggleButtonRenderer extends JToggleButton implements TableCellRenderer { /** * */ private static final long serialVersionUID = 1L; public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { if (value == null) return null; if (isSelected) { // cell (and perhaps other cells) are selected } if (hasFocus) { // this cell is the anchor and the table has the focus } return (Component) value; } // The following methods override the defaults for performance reasons @Override public void validate() {} @Override public void revalidate() {} @Override protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) {} @Override public void firePropertyChange(String propertyName, boolean oldValue, boolean newValue) {}}As you can see, the important part is the table model, table1ModelTo add a new row...//id is something you want put on the button texttable1Model.addRow(new Object[] { new JToggleButton(id), false, 1} );edited:Added missing JToggleButton cell renderer 这篇关于定制的JTable外观的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！