Java TableCellRenderer.getTableCellRendererComponent方法代碼示例

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
private static void packColumn(JTable table, int vColIndex, int margin) {
    DefaultTableColumnModel colModel = (DefaultTableColumnModel) table.
            getColumnModel();
    TableColumn col = colModel.getColumn(vColIndex);
    int width;            // Obtém a largura do cabeçalho da coluna
    TableCellRenderer renderer = col.getHeaderRenderer();
    if (renderer == null) {
        renderer = table.getTableHeader().getDefaultRenderer();
    }
    Component comp = renderer.getTableCellRendererComponent(
            table, col.getHeaderValue(), false, false, 0, 0);
    width = comp.getPreferredSize().width;            // Obtém a largura maxima da coluna de dados
    for (int r = 0; r < table.getRowCount(); r++) {
        renderer = table.getCellRenderer(r, vColIndex);
        comp = renderer.getTableCellRendererComponent(
                table, table.getValueAt(r, vColIndex), false, false, r,
                vColIndex);
        width = Math.max(width, comp.getPreferredSize().width);
    }
    width += 2 * margin;            // Configura a largura
    col.setPreferredWidth(width);
}
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
/**
 * Initializes preferred (and eventually maximum) width of a table column
 * based on the size of its header and the estimated longest value.
 *
 * @param table Table to adjust the column width for.
 * @param index Index of the column.
 * @param longValue Estimated long value for the column.
 * @param padding Number of pixes for padding.
 */
public static void initColumnWidth(JTable table, int index, Object longValue, int padding) {
    TableColumn column = table.getColumnModel().getColumn(index);

    // get preferred size of the header
    TableCellRenderer headerRenderer = column.getHeaderRenderer();
    if (headerRenderer == null) {
        headerRenderer = table.getTableHeader().getDefaultRenderer();
    }
    Component comp = headerRenderer.getTableCellRendererComponent(
            table, column.getHeaderValue(), false, false, 0, 0);
    int width = comp.getPreferredSize().width;

    // get preferred size of the long value (remeber max of the pref. size for header and long value)
    comp = table.getDefaultRenderer(table.getModel().getColumnClass(index)).getTableCellRendererComponent(
            table, longValue, false, false, 0, index);
    width = Math.max(width, comp.getPreferredSize().width) + 2 * padding;

    // set preferred width of the column
    column.setPreferredWidth(width);
    // if the column contains boolean values, the preferred width
    // should also be its max width
    if (longValue instanceof Boolean) {
        column.setMaxWidth(width);
    }
}
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
/**
 * Returns true if the given point is outside the preferredSize of the
 * item at the given row of the table.  (Column must be 0).
 * Does not check the "Table.isFileList" property. That should be checked
 * before calling this method.
 * This is used to make Windows {@literal L&F} JFileChooser act
 * like native dialogs.
 */
public static boolean pointOutsidePrefSize(JTable table, int row, int column, Point p) {
    if (table.convertColumnIndexToModel(column) != 0 || row == -1) {
        return true;
    }
    TableCellRenderer tcr = table.getCellRenderer(row, column);
    Object value = table.getValueAt(row, column);
    Component cell = tcr.getTableCellRendererComponent(table, value, false,
            false, row, column);
    Dimension itemSize = cell.getPreferredSize();
    Rectangle cellBounds = table.getCellRect(row, column, false);
    cellBounds.width = itemSize.width;
    cellBounds.height = itemSize.height;

    // See if coords are inside
    // ASSUME: mouse x,y will never be < cell's x,y
    assert (p.x >= cellBounds.x && p.y >= cellBounds.y);
    return p.x > cellBounds.x + cellBounds.width ||
            p.y > cellBounds.y + cellBounds.height;
}
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
/** Returns true if source root is used for debugging and false otherwise.
 * @param source source root
 * @return true if source root is used for debugging; false otherwise
 */
public boolean isUsed(String source) {
    int row = treeTable().findCellRow(source);
    // gets component used to render a value
    TableCellRenderer renderer = treeTable().getCellRenderer(row, 1);
    Component comp = renderer.getTableCellRendererComponent(
                                        (JTable)treeTable().getSource(),
                                        treeTable().getValueAt(row, 1),
                                        false, 
                                        false, 
                                        row, 
                                        1
    );
    String tooltip = new JComponentOperator((JComponent)comp).getToolTipText();
    return "true".equalsIgnoreCase(tooltip);
}
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
/**
 * Renvoie le texte à la position demandée.
 * @return String
 * @param row int
 * @param column int
 */
private String getTextAt(int row, int column) {
	final Object value = getModel().getValueAt(row, column);

	String text = "";
	if (value != null) {
		final int columnIndex = convertColumnIndexToView(column);
		final TableCellRenderer renderer = getCellRenderer(row, columnIndex);
		final java.awt.Component rendererComponent = renderer
				.getTableCellRendererComponent(this, value, false, false, row, columnIndex);
		text = getTextFrom(value, rendererComponent);
		if (text == null) {
			text = "";
		}
	}
	return text;
}
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row,
                                               int column) {
    TableCellRenderer tableCellRenderer = table.getTableHeader().getDefaultRenderer();
    Component c = tableCellRenderer.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);

    if (c instanceof JLabel) {
        JLabel l = (JLabel) c;

        if (column == sortingColumn) { // only for sorting column the icon is displayed
            l.setIcon((sortOrder == SortableTableModel.SORT_ORDER_ASC) ? ascIcon : descIcon);
            l.setFont(l.getFont().deriveFont(Font.BOLD));
        } else {
            l.setIcon(null);
        }

        l.setHorizontalTextPosition(JLabel.LEFT);
    }

    return c;
}
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
@Override
public Component getTableCellRendererComponent(JTable table,
                                               Object value, boolean isSelected, boolean hasFocus, int row,
                                               int column) {
    Component component = super.getTableCellRendererComponent(table,
            value, isSelected, hasFocus, row, column);
    if (value != null) {
        if (component instanceof JLabel)
            ((JLabel) component)
                    .setText(DateAttributePlugin.DATE_INSTANCE
                            .format(value));
        else {
            TableCellRenderer renderer = table
                    .getDefaultRenderer(Date.class);
            return renderer.getTableCellRendererComponent(table, value,
                    isSelected, hasFocus, row, column);
        }
    }
    return component;
}
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
public static void autoSizeTableColumns(JTable table) {

        TableModel  model        = table.getModel();
        TableColumn column       = null;
        Component   comp         = null;
        int         headerWidth  = 0;
        int         maxCellWidth = Integer.MIN_VALUE;
        int         cellWidth    = 0;
        TableCellRenderer headerRenderer =
            table.getTableHeader().getDefaultRenderer();

        for (int i = 0; i < table.getColumnCount(); i++) {
            column = table.getColumnModel().getColumn(i);
            comp = headerRenderer.getTableCellRendererComponent(table,
                    column.getHeaderValue(), false, false, 0, 0);
            headerWidth  = comp.getPreferredSize().width + 10;
            maxCellWidth = Integer.MIN_VALUE;

            for (int j = 0; j < Math.min(model.getRowCount(), 30); j++) {
                TableCellRenderer r = table.getCellRenderer(j, i);

                comp = r.getTableCellRendererComponent(table,
                                                       model.getValueAt(j, i),
                                                       false, false, j, i);
                cellWidth = comp.getPreferredSize().width;

                if (cellWidth >= maxCellWidth) {
                    maxCellWidth = cellWidth;
                }
            }

            column.setPreferredWidth(Math.max(headerWidth, maxCellWidth)
                                     + 10);
        }
    }
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
/**
 * This method picks good column sizes. If all column headers are wider than
 * the column's cells' contents, then just use column.sizeWidthToFit().
    * @param table JTable
    */
public void initColumnSizes(JTable table) {

	TableColumn column;
	Component comp;
	int headerWidth;
	int cellWidth;

	TableCellRenderer headerRenderer = table.getTableHeader()
			.getDefaultRenderer();

	// TODO: move to tableModel. AK
	for (int i = 0; i < this.pdfDefinitionTableModel.getColumnCount(); i++) {
		column = table.getColumnModel().getColumn(i);

		comp = headerRenderer.getTableCellRendererComponent(null, column
				.getHeaderValue(), false, false, 0, 0);
		headerWidth = comp.getPreferredSize().width;

		// TODO: move to tableModel. AK
		comp = table.getDefaultRenderer(this.pdfDefinitionTableModel.getColumnClass(i))
				.getTableCellRendererComponent(table, this.pdfDefinitionTableModel.longValues[i], false,
						false, 0, i);
		cellWidth = comp.getPreferredSize().width;

		// XXX: Before Swing 1.1 Beta 2, use setMinWidth instead.
		column.setPreferredWidth(Math.max(headerWidth, cellWidth));
	}
}
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
    TableCellRenderer rend = value == null || !table.getModel().isCellEditable(row, column)
            ? label : checkbox;
    // reset value in case the cell is not editable
    value = value != null && rend == label ? null : value;
    Component comp = rend.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
    return comp;
}
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
private void initColumnSizes(JTable table) {
    MyTableModel model = (MyTableModel) table.getModel();
    TableColumn column = null;
    Component comp = null;
    int headerWidth = 0;
    int cellWidth = 0;
    Object[] longValues = model.longValues;
    TableCellRenderer headerRenderer = table.getTableHeader().getDefaultRenderer();

    for (int i = 0; i < 5; i++) {
        column = table.getColumnModel().getColumn(i);

        comp = headerRenderer.getTableCellRendererComponent(null, column.getHeaderValue(), false, false, 0, 0);
        headerWidth = comp.getPreferredSize().width;

        comp = table.getDefaultRenderer(model.getColumnClass(i)).getTableCellRendererComponent(table, longValues[i], false,
                false, 0, i);
        cellWidth = comp.getPreferredSize().width;

        if (DEBUG) {
            System.out.println(
                    "Initializing width of column " + i + ". " + "headerWidth = " + headerWidth + "; cellWidth = " + cellWidth);
        }

        column.setPreferredWidth(Math.max(headerWidth, cellWidth));
    }
}
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
    TableCellRenderer def = table.getDefaultRenderer(table.getColumnClass(column));
    if (!table.isEnabled()) {
        isSelected = hasFocus = false;
    }
    JComponent c = (JComponent)def.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
    c.setEnabled(table.isEnabled());
    
    return c;
}
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
@Override
public Object getValueAt(Object node, int index) {
    TreeTableNode tableRow = (TreeTableNode) node;
    if (tableRow instanceof GroupNode) {
        if (index == 0) {
            GroupNode groupNode = (GroupNode) tableRow;
            if (table != null) {
                Attribute attribute = groupNode.getAttribute();
                if (attribute != null) {
                    AttributePlugin plugin = framework
                            .findAttributePlugin(attribute);
                    TableCellRenderer renderer = plugin
                            .getTableCellRenderer(rowSet.getEngine(),
                                    framework.getAccessRules(), attribute);
                    if (renderer != null) {
                        try {
                            Component c = renderer
                                    .getTableCellRendererComponent(table,
                                            groupNode.getValue(), false,
                                            false, -1, -1);
                            if (c instanceof JLabel)
                                return ((JLabel) c).getText();
                        } catch (Exception e) {
                            // e.printStackTrace();
                        }
                    }
                }
            }
            return groupNode.getValue();
        }
        return null;
    }
    return localizers[index].getValue(valueGetters[index].getValue(
            tableRow, index));
}
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
public static Component getRendererComponent(JTableHeader jTableHeader, int item) {
    int columnCount = jTableHeader.getColumnModel().getColumnCount();
    if (item < 0 || item >= columnCount) {
        throw new NoSuchElementException("Index out of bounds error on JTableHeader: " + item, null);
    }
    Object headerValue = jTableHeader.getColumnModel().getColumn(item).getHeaderValue();
    TableCellRenderer headerRenderer = jTableHeader.getColumnModel().getColumn(item).getHeaderRenderer();
    if (headerRenderer == null) {
        headerRenderer = jTableHeader.getDefaultRenderer();
    }
    Component rendererComponent = headerRenderer.getTableCellRendererComponent(jTableHeader.getTable(), headerValue, false,
            false, 0, item);
    return rendererComponent;
}
 

import javax.swing.table.TableCellRenderer; //導入方法依賴的package包/類
/**
 * Calculate and return the height of the header.
 *
 * @return Header Height
 */
@SuppressWarnings("unchecked")
private int getHeaderHeight() {
    int height = 0;
    GroupableTableColumnModel columnModel = (GroupableTableColumnModel) header
            .getColumnModel();
    for (int column = 0; column < columnModel.getColumnCount(); column++) {
        TableColumn aColumn = columnModel.getColumn(column);
        TableCellRenderer renderer = aColumn.getHeaderRenderer();
        if (renderer == null) {
            renderer = header.getDefaultRenderer();
        }
        Component comp = renderer.getTableCellRendererComponent(header
                        .getTable(), aColumn.getHeaderValue(), false, false, -1,
                column);
        int cHeight = comp.getPreferredSize().height;
        Iterator iter = columnModel.getColumnGroups(aColumn);
        if (iter != null) {
            while (iter.hasNext()) {
                ColumnGroup cGroup = (ColumnGroup) iter.next();
                cHeight += cGroup.getSize(header.getTable()).height;
            }
        }
        height = Math.max(height, cHeight);
    }
    return height;
}