javax.swing.JTable#getRowSelectionAllowed ( )源码实例Demo

/**
 * Checks whether at least one selected cell is editable.
 */
protected boolean isSelectionEditable( JTable table ) {
	if( table.getRowSelectionAllowed() ) {
		int columnCount = table.getColumnCount();
		int[] selectedRows = table.getSelectedRows();
		for( int selectedRow : selectedRows ) {
			for( int column = 0; column < columnCount; column++ ) {
				if( table.isCellEditable( selectedRow, column ) )
					return true;
			}
		}
	}

	if( table.getColumnSelectionAllowed() ) {
		int rowCount = table.getRowCount();
		int[] selectedColumns = table.getSelectedColumns();
		for( int selectedColumn : selectedColumns ) {
			for( int row = 0; row < rowCount; row++ ) {
				if( table.isCellEditable( row, selectedColumn ) )
					return true;
			}
		}
	}

	return false;
}
 

private String getSelection() {
    JTable table = (JTable) component;
    boolean rowSelectionAllowed = table.getRowSelectionAllowed();
    boolean columnSelectionAllowed = table.getColumnSelectionAllowed();

    if (!rowSelectionAllowed && !columnSelectionAllowed) {
        return null;
    }

    int[] rows = table.getSelectedRows();
    int[] columns = table.getSelectedColumns();
    int rowCount = table.getRowCount();
    int columnCount = table.getColumnCount();

    if (rows.length == rowCount && columns.length == columnCount) {
        return "all";
    }

    if (rows.length == 0 && columns.length == 0) {
        return "";
    }

    StringBuffer text = new StringBuffer();

    text.append("rows:[");
    for (int i = 0; i < rows.length; i++) {
        text.append(rows[i]);
        if (i != rows.length - 1) {
            text.append(",");
        }
    }
    text.append("],");
    text.append("columns:[");
    for (int i = 0; i < columns.length; i++) {
        String columnName = getColumnName(columns[i]);
        text.append(escape(columnName));
        if (i != columns.length - 1) {
            text.append(",");
        }
    }
    text.append("]");
    return text.toString();
}
 

private void selectClickedCell(final MouseEvent e) {
	Object source = e.getSource();
	if (source instanceof JTable) {
		JTable jSelectTable = (JTable) source;

		Point point = e.getPoint();
		if (!jSelectTable.getVisibleRect().contains(point)) { //Ignore clickes outside table
			return;
		}

		int clickedRow = jSelectTable.rowAtPoint(point);
		int clickedColumn = jSelectTable.columnAtPoint(point);

		//Rows
		boolean clickInRowsSelection;
		if (jSelectTable.getRowSelectionAllowed()) { //clicked in selected rows?
			clickInRowsSelection = false;
			int[] selectedRows = jSelectTable.getSelectedRows();
			for (int i = 0; i < selectedRows.length; i++) {
				if (selectedRows[i] == clickedRow) {
					clickInRowsSelection = true;
					break;
				}
			}
		} else { //Row selection not allowed - all rows selected
			clickInRowsSelection = true;
		}

		//Column
		boolean clickInColumnsSelection;
		if (jSelectTable.getColumnSelectionAllowed()) { //clicked in selected columns?
			clickInColumnsSelection = false;
			int[] selectedColumns = jSelectTable.getSelectedColumns();
			for (int i = 0; i < selectedColumns.length; i++) {
				if (selectedColumns[i] == clickedColumn) {
					clickInColumnsSelection = true;
					break;
				}
			}
		} else { //Column selection not allowed - all columns selected
			clickInColumnsSelection = true;
		}

		//Clicked outside selection, select clicked cell
		if ( (!clickInRowsSelection || !clickInColumnsSelection) && clickedRow >= 0 && clickedColumn >= 0) {
			jSelectTable.setRowSelectionInterval(clickedRow, clickedRow);
			jSelectTable.setColumnSelectionInterval(clickedColumn, clickedColumn);
		}
	}
}
 

private static void copy(JTable jTable) {
	//Rows
	int[] rows;
	if (jTable.getRowSelectionAllowed()) { //Selected rows
		rows = jTable.getSelectedRows();
	} else { //All rows (if row selection is not allowed)
		rows = new int[jTable.getRowCount()];
		for (int i = 0; i < jTable.getRowCount(); i++) {
			rows[i] = i;
		}
	}

	//Columns
	int[] columns;
	if (jTable.getColumnSelectionAllowed()) { //Selected columns
		columns = jTable.getSelectedColumns();
	} else { //All columns (if column selection is not allowed)
		columns = new int[jTable.getColumnCount()];
		for (int i = 0; i < jTable.getColumnCount(); i++) {
			columns[i] = i;
		}
	}
	StringBuilder tableText = new StringBuilder(); //Table text buffer
	String separatorText = ""; //Separator text buffer (is never added to, only set for each separator)
	int rowCount = 0; //used to find last row

	for (int row : rows) {
		rowCount++; //count rows
		StringBuilder rowText = new StringBuilder(); //Row text buffer
		boolean firstColumn = true; //used to find first column
		for (int column : columns) {
			//Get value
			Object value = jTable.getValueAt(row, column);

			//Handle Separator
			if (value instanceof SeparatorList.Separator) {
				SeparatorList.Separator<?> separator = (SeparatorList.Separator) value;
				Object object = separator.first();
				if (object instanceof CopySeparator) {
					CopySeparator copySeparator = (CopySeparator) object;
					separatorText = copySeparator.getCopyString();
				}
				break;
			}

			//Add tab separator (except for first column)
			if (firstColumn) {
				firstColumn = false;
			} else {
				rowText.append("\t");
			}

			//Add value
			if (value != null) { //Ignore null
				//Format value to displayed value
				if (value instanceof Float) {
					rowText.append(Formater.floatFormat(value));
				} else if (value instanceof Double) {
					rowText.append(Formater.doubleFormat(value));
				} else if (value instanceof Integer) {
					rowText.append(Formater.integerFormat(value));
				} else if (value instanceof Long) {
					rowText.append(Formater.longFormat(value));
				} else if (value instanceof Date) {
					rowText.append(Formater.columnDate(value));
				} else if (value instanceof HierarchyColumn) {
					HierarchyColumn hierarchyColumn = (HierarchyColumn) value;
					rowText.append(hierarchyColumn.getExport());
				} else {
					rowText.append(value.toString()); //Default
				}
			}
		}

		//Add
		if (rowText.length() > 0 || (!separatorText.isEmpty() && rowCount == rows.length)) {
			tableText.append(separatorText); //Add separator text (will be empty for normal tables)
			if (rowText.length() > 0 && !separatorText.isEmpty()) { //Add tab separator (if needed)
				tableText.append("\t");
			}
			tableText.append(rowText.toString()); //Add row text (will be empty if only copying sinlge separator)
			if (rowCount != rows.length) {
				tableText.append("\r\n");
			} //Add end line
		}
	}
	toClipboard(tableText.toString()); //Send it all to the clipboard
}