public static void packColumns(Table table, boolean fit) {
table.setRedraw(false);
try {
int totalWidth = 0;
final TableColumn[] columns = table.getColumns();
for (TableColumn column : columns) {
column.pack();
totalWidth += column.getWidth();
}
final Rectangle clientArea = table.getClientArea();
if (clientArea.width > 0 && totalWidth > clientArea.width) {
for (TableColumn column : columns) {
int colWidth = column.getWidth();
if (colWidth > totalWidth / 3) {
// If some columns is too big (more than 33% of total width)
// Then shrink it to 30%
column.setWidth(totalWidth / 3);
totalWidth -= colWidth;
totalWidth += column.getWidth();
}
}
int extraSpace = totalWidth - clientArea.width;
for (TableColumn tc : columns) {
double ratio = (double) tc.getWidth() / totalWidth;
int newWidth = (int) (tc.getWidth() - extraSpace * ratio);
tc.setWidth(newWidth);
}
}
if (fit && totalWidth < clientArea.width) {
int sbWidth = 0;
if (table.getVerticalBar() != null) {
sbWidth = table.getVerticalBar().getSize().x;
}
if (columns.length > 0) {
float extraSpace = (clientArea.width - totalWidth - sbWidth) / columns.length;
for (TableColumn tc : columns) {
tc.setWidth((int) (tc.getWidth() + extraSpace));
}
}
}
} finally {
table.setRedraw(true);
}
}
public Shell open(Display display) {
shell = new Shell(display);
shell.setLayout(new FillLayout());
shell.addShellListener(
new ShellAdapter() {
@Override
public void shellClosed(ShellEvent e) {
e.doit = closeAddressBook();
}
});
createMenuBar();
searchDialog = new SearchDialog(shell);
searchDialog.setSearchAreaNames(columnNames);
searchDialog.setSearchAreaLabel(resAddressBook.getString("Column"));
searchDialog.addFindListener(
new FindListener() {
public boolean find() {
return findEntry();
}
});
table = new Table(shell, SWT.SINGLE | SWT.BORDER | SWT.FULL_SELECTION);
table.setHeaderVisible(true);
table.setMenu(createPopUpMenu());
table.addSelectionListener(
new SelectionAdapter() {
@Override
public void widgetDefaultSelected(SelectionEvent e) {
TableItem[] items = table.getSelection();
if (items.length > 0) editEntry(items[0]);
}
});
for (int i = 0; i < columnNames.length; i++) {
TableColumn column = new TableColumn(table, SWT.NONE);
column.setText(columnNames[i]);
column.setWidth(150);
final int columnIndex = i;
column.addSelectionListener(
new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
sort(columnIndex);
}
});
}
newAddressBook();
shell.setSize(table.computeSize(SWT.DEFAULT, SWT.DEFAULT).x, 300);
shell.open();
return shell;
}
public static void maxTableColumnsWidth(Table table) {
table.setRedraw(false);
try {
int columnCount = table.getColumnCount();
if (columnCount > 0) {
int totalWidth = 0;
final TableColumn[] columns = table.getColumns();
for (TableColumn tc : columns) {
tc.pack();
totalWidth += tc.getWidth();
}
final Rectangle clientArea = table.getClientArea();
if (totalWidth < clientArea.width) {
int extraSpace = clientArea.width - totalWidth;
extraSpace /= columnCount;
for (TableColumn tc : columns) {
tc.setWidth(tc.getWidth() + extraSpace);
}
}
}
} finally {
table.setRedraw(true);
}
}
private void createComp(Composite group) {
GridLayout layout = new GridLayout(1, false);
layout.verticalSpacing = 10;
group.setLayout(layout);
// TableViewer是通过Table来布局的
// 制作表格 MULTI可多选 H_SCROLL有水平 滚动条、V_SCROLL有垂直滚动条、BORDER有边框、FULL_SELECTION整行选择
table = new Table(group, SWT.SINGLE | SWT.FULL_SELECTION | SWT.BORDER | SWT.VIRTUAL); // 注意此处的设置
TableLayout tableLayout = new TableLayout();
table.setLayout(tableLayout);
// 指定Table单元格的宽度和高度
table.addListener(
SWT.MeasureItem,
new Listener() { // 向表格增加一个SWT.MeasureItem监听器，每当需要单元内容的大小的时候就会被调用。
public void handleEvent(Event event) {
event.width = table.getGridLineWidth(); // 设置宽度
event.height =
(int) Math.floor(event.gc.getFontMetrics().getHeight() * 1.5); // 设置高度为字体高度的1.5倍
}
});
// 表格的视图
tableViewer = new TableViewer(table);
// 标题和网格线可见
tableViewer.getTable().setLinesVisible(true);
tableViewer.getTable().setHeaderVisible(true);
// 设置填充
// GridData data = new GridData(SWT.LEFT,SWT.CENTER, true, false);//SWT.FILL, SWT.FILL, true,
// false xbm
GridData data = new GridData(GridData.FILL_BOTH);
data.widthHint = 350;
data.heightHint = 295;
data.grabExcessHorizontalSpace = true;
tableViewer.getTable().setLayoutData(data); // 表格的布局
// 创建表格列的标题
int width = 1;
for (int i = 0; i < stationData.getColumnCount(); i++) {
width = stationData.getColumnWidth(i);
TableColumn column = new TableColumn(table, SWT.NONE);
column.setWidth((int) (width * 8));
column.setText(stationData.getColumnHeads()[i]); // 设置表头
column.setAlignment(SWT.LEFT); // 对齐方式SWT.LEFT
if (i == 0) // 站名
{
// 列的选择事件 实现排序
column.addSelectionListener(
new SelectionAdapter() {
boolean sortType = true; // sortType记录上一次的排序方式，默认为升序
public void widgetSelected(SelectionEvent e) {
sortType = !sortType; // 取反。下一次排序方式要和这一次的相反
tableViewer.setSorter(new StationSorter(sortType, stationData.columnHeads[0]));
}
});
}
}
/*tableLayout.addColumnData(new ColumnWeightData(8, 8, false));//设置列宽为8像素
TableColumn column_one = new TableColumn(table, SWT.NONE);//SWT.LEFT
column_one.setText(stationData.COLUMN_HEADINGS[0]);//设置表头
column_one.setAlignment(SWT.LEFT);//对齐方式SWT.LEFT
column.setWidth(10);//宽度
*/
// 设置标题的提供者
tableViewer.setLabelProvider(new TableLabelProvider());
// 设置表格视图的内容提供者
tableViewer.setContentProvider(new TableContentProvider());
// 设置列的属性.
tableViewer.setColumnProperties(stationData.columnHeads);
// 定义每一列的别名
tableViewer.setColumnProperties(new String[] {"name", "down", "up", "map"});
// 设置每一列的单元格编辑组件CellEditor
CellEditor[] celleditors = new CellEditor[5];
// 文本编辑框
celleditors[0] = null;
celleditors[1] = new TextCellEditor(table);
celleditors[2] = new TextCellEditor(table);
// CheckboxCellEditor(table) 复选框
celleditors[3] = new ComboBoxCellEditor(table, StationData.MAPS, SWT.READ_ONLY); // 下拉框
Text text = (Text) celleditors[1].getControl(); // 设置第down列只能输入数值
text.addVerifyListener(
new VerifyListener() {
public void verifyText(VerifyEvent e) {
// 输入控制键，输入中文，输入字符，输入数字 正整数验证
Pattern pattern = Pattern.compile("[0-9]\\d*"); // 正则表达式
Matcher matcher = pattern.matcher(e.text);
if (matcher.matches()) // 处理数字
{
/*if(Integer.parseInt(e.text) != 0)//确保输入的数字不是0
e.doit = true;
else
e.doit = false;
*/
e.doit = true;
} else if (e.text.length() > 0) // 字符: 包含中文、空格
e.doit = false;
else // 控制键
e.doit = true;
}
});
Text text1 = (Text) celleditors[2].getControl(); // 设置第up列只能输入数值
text1.addVerifyListener(
new VerifyListener() {
public void verifyText(VerifyEvent e) {
String inStr = e.text;
if (inStr.length() > 0) {
e.doit = NumberUtils.isDigits(inStr);
}
}
});
table.addMouseMoveListener(
new MouseMoveListener() {
public void mouseMove(MouseEvent e) {
if (StationData.reloadFlag) {
getStationInfo();
openCurrentTable(row);
StationData.reloadFlag = false;
// System.out.println("entry");
}
}
});
/*table.addFocusListener(new FocusListener(){
public void focusGained(FocusEvent e) {
getStationInfo();
openCurrentTable(row);
}
@Override
public void focusLost(FocusEvent e) {
}
});
*/
tableViewer.setCellEditors(celleditors);
// 设置单元的更改器
tableViewer.setCellModifier(new TableCellModifier());
tableViewer.addFilter(new TableViewerFilter()); // 过滤器
// 构造工具条
Composite buttonComposite = new Composite(group, SWT.NONE);
buttonComposite.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false)); // 使工具条居中
Action actionModify =
new Action("更新") {
public void run() {
// 取得用户所选择的第一行, 若没有选择则为null
IStructuredSelection selection = (IStructuredSelection) tableViewer.getSelection();
// 获取选中的第一行数据
Station station = (Station) selection.getFirstElement();
if (station != null) {
if (updateStationInfo(
station.getStation_downnumber(),
station.getStation_upnumber(),
station.getStation_graph(),
station.getStation_name())) {
showMsg("成功更新!");
// 表格的刷新方法,界面会重新读取数据并显示
pushCommand();
tableViewer.refresh(); // false
} else {
showMsg("更新失败!");
// tableViewer.refresh();//false
}
} else {
showMsg("请选取进行更新的行！");
}
}
};
Action actionDelete =
new Action("删除") {
public void run() {
// 取得用户所选择的第一行, 若没有选择则为null
IStructuredSelection selection = (IStructuredSelection) tableViewer.getSelection();
// 获取选中的第一个数据
Station station = (Station) selection.getFirstElement();
if (station != null) {
// 先预先移动到下一行
Table table = tableViewer.getTable();
// int i = table.getSelectionIndex(); //取得当前所选行的序号，如没有则返回-1
// table.setSelection(i + 1); //当前选择行移下一行
// 确认删除
MessageBox messageBox =
new MessageBox(shell, SWT.YES | SWT.NO | SWT.ICON_INFORMATION);
messageBox.setText("提示信息");
messageBox.setMessage("确定要删除此记录吗?");
// SWT.YES 是 // SWT.NO 否 // SWT.CANCEL 取消 // SWT.RETRY 重试// SWT.ABORT 放弃// SWT.IGNORE
// 忽略
if (messageBox.open() == SWT.YES) {
if (deleteStationInfo(station.getStation_name())) // 从数据库中删除记录
{
// showMsg("成功删除!");
((List) tableViewer.getInput()).remove(station); // 数据模型的List容器中删除
stationData.remove(station.getStation_name());
openCurrentTable(row);
tableViewer.remove(station); // 从表格界面上删除
pushCommand();
} else showMsg("删除失败!");
}
} else {
showMsg("请选取要删除的纪录！");
}
}
};
Action actionClear = new Action("清空") { // 清除所显示内容，点击保存后更新库
public void run() {
if (clearStationInfo()) {
showMsg("清空操作成功!");
stationData.removeAll();
openCurrentTable(row);
pushCommand();
} else showMsg("清空操作失败!");
}
};
Action actionHelp =
new Action("帮助") {
public void run() {
String str = "更新：\n\r" + "先对某行内容进行修改,然后点击更新进行保存\n\r" + "清空：\n\r" + "从库中物理删除所有记录";
showMsg(str);
}
};
Action nextPage =
new Action("下一页") {
public void run() {
row++;
if (row > stationData.getTotalPageNum()) {
row--;
return;
}
openCurrentTable(row);
}
};
Action prevPage =
new Action("上一页") {
public void run() {
row--;
if (row < 1) {
row++;
return;
}
openCurrentTable(row);
}
};
Action refresh =
new Action("刷新") {
public void run() {
getStationInfo();
openCurrentTable(row);
}
};
// 工具条
ToolBar toolBar = new ToolBar(buttonComposite, SWT.FLAT | SWT.RIGHT); // |SWT.BORDER
// 工具条管理器
ToolBarManager manager = new ToolBarManager(toolBar);
// manager.add(refresh);
// manager.add(new Separator());
manager.add(nextPage);
manager.add(prevPage);
manager.add(new Separator());
manager.add(actionModify);
manager.add(actionDelete);
manager.add(actionClear);
manager.add(new Separator());
manager.add(actionHelp);
manager.update(true);
// 选中某行时，改变行的颜色
table.addListener(
SWT.EraseItem,
new Listener() {
public void handleEvent(Event event) {
event.detail &= ~SWT.HOT;
if ((event.detail & SWT.SELECTED) == 0) return;
int clientWidth = table.getClientArea().width;
GC gc = event.gc;
Color oldForeground = gc.getForeground();
Color oldBackground = gc.getBackground();
gc.setForeground(red);
// gc.setBackground(yellow);
gc.fillGradientRectangle(0, event.y, clientWidth, event.height, false);
gc.setForeground(oldForeground);
gc.setBackground(oldBackground);
event.detail &= ~SWT.SELECTED;
}
});
// 在tableviewer内部为数据记录和tableItem之间的映射创建一个hash表，这样可以加快tableItem的和记录间的查找速度
// 必须保证存在要显示的数据，否则程序出错。所以这里不能用下面的语句
// tableViewer.setUseHashlookup(true);//必须在setInput之前加入才有效
// 从服务器获取数据
getStationInfo();
// 通过setInput为table添加了一个list后，只要对这个list里的元素进行添加和删除，
// table中的数据就会自动添加和删除，当然每次操作后需要调用refresh方法对tableviewer进行刷新。
// 打开界面所显示的内容
tableViewer.setInput(stationData.getData()); // 自动输入数据 即将数据显示在表格中
tableViewer.setItemCount(stationData.PAGE_SIZE); // 设置显示的Item数
} //// createComp
public Shell open(Display display) {
// Window dressing - the icon
windowIcon =
new Image(display, getClass().getClassLoader().getResourceAsStream("icons/joanju.gif"));
shell = new Shell(display);
shell.setLayout(new FillLayout());
shell.addShellListener(
new ShellAdapter() {
public void shellClosed(ShellEvent e) {
e.doit = closeAddressBook();
}
});
shell.setImage(windowIcon);
createMenuBar();
searchDialog = new SearchDialog(shell);
searchDialog.setSearchAreaNames(columnNames);
searchDialog.setSearchAreaLabel(resMessages.getString("Column"));
searchDialog.addFindListener(
new FindListener() {
public boolean find() {
return findEntry();
}
});
table = new Table(shell, SWT.SINGLE | SWT.BORDER | SWT.FULL_SELECTION);
table.setHeaderVisible(true);
table.setMenu(createPopUpMenu());
table.addSelectionListener(
new SelectionAdapter() {
public void widgetDefaultSelected(SelectionEvent e) {
TableItem[] items = table.getSelection();
if (items.length > 0) launchEditor(items[0]);
}
});
int[] widths = {150, 50, 200, 200};
for (int i = 0; i < columnNames.length; i++) {
TableColumn column = new TableColumn(table, SWT.NONE);
column.setText(columnNames[i]);
column.setWidth(widths[i]);
final int columnIndex = i;
column.addSelectionListener(
new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
sort(columnIndex);
}
});
}
newAddressBook();
shell.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
windowIcon.dispose();
}
});
shell.setSize(table.computeSize(SWT.DEFAULT, SWT.DEFAULT).x, 300);
shell.open();
return shell;
}