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[SWT]不用jface給表格的單元格增加編輯功能

Posted on 2007-07-20 21:14 kooyee 閱讀(842) 評論(0) 編輯收藏所屬分類: GUI骨衣

先建立table editor

//create table editor

final TableEditor editor = new TableEditor(tablePrice);

//The editor must have the same size as the cell and must

//not be any smaller than 50 pixels.

editor.horizontalAlignment = SWT.LEFT;

editor.grabHorizontal = true;

editor.minimumWidth = 50;

下面的Listener 用來確定表格中鼠標選定的單元格的序號

// listerner for the cell that mouse point to

tablePrice.addListener(SWT.MouseDown, new Listener() {

public void handleEvent(Event event) {

Point pt = new Point(event.x, event.y);

TableItem item = tablePrice.getItem(pt);

if (item == null)

return;

for (int i = 0; i < 5; i++) {

Rectangle rect = item.getBounds(i);

if (rect.contains(pt)) {

EDITABLECOLUMN = i;

}

});

加入這個Listener對選定的項進行編輯

tablePrice.addSelectionListener(new SelectionAdapter() {

public void widgetSelected(SelectionEvent e) {

// Clean up any previous editor control

Control oldEditor = editor.getEditor();

if (oldEditor != null) oldEditor.dispose();

// Identify the selected row

TableItem item = (TableItem)e.item;

if (item == null) return;

// The control that will be the editor must be a child of the Table

Text newEditor = new Text(tablePrice, SWT.NONE);

newEditor.setText(item.getText(EDITABLECOLUMN));//取得當前單元格里的值

newEditor.addModifyListener(new ModifyListener() { //text Modify 的Listener

public void modifyText(ModifyEvent me) {

Text text = (Text)editor.getEditor();

editor.getItem().setText(EDITABLECOLUMN, text.getText());

}

});

newEditor.selectAll();

newEditor.setFocus();

editor.setEditor(newEditor, item, EDITABLECOLUMN);

}

});

如果需要在table更新時text editor消失，可以加入以下code

item.addDisposeListener(new org.eclipse.swt.events.DisposeListener(){

public void widgetDisposed(org.eclipse.swt.events.DisposeEvent e) {

//editor.dispose();

newEditor.dispose();

}

});

或者當非激活時，除去text editor

newEditor.addFocusListener(new org.eclipse.swt.events.FocusAdapter() {

public void focusLost(org.eclipse.swt.events.FocusEvent e) {