@Override
public void verifyText(VerifyEvent e) {
// If the edit mask is already full, don't let the user type
// any new characters
if (editMaskParser.isComplete()
&& // should eventually be .isFull() to account for optional characters
e.start == e.end
&& e.text.length() > 0) {
e.doit = false;
return;
}
oldSelection = selection;
Point selectionRange = text.getSelection();
selection = selectionRange.x;
if (!updating) {
replacedSelectedText = false;
if (selectionRange.y - selectionRange.x > 0 && e.text.length() > 0) {
replacedSelectedText = true;
}
// If the machine is loaded down (ie: spyware, malware), we might
// get another keystroke before asyncExec can process, so we use
// greedyExec instead.
SWTUtil.greedyExec(Display.getCurrent(), updateTextField);
// Display.getCurrent().asyncExec(updateTextField);
}
}
@Test
public void testSelectionAfterInsertText() {
text.setText("foobar");
text.setSelection(3);
text.insert("xxx");
assertEquals(new Point(6, 6), text.getSelection());
}
@Test
public void testInitialValuesForSingleText() {
assertEquals("", text.getText());
assertEquals("", text.getMessage());
assertEquals(Text.LIMIT, text.getTextLimit());
assertEquals(0, text.getSelectionCount());
assertEquals(new Point(0, 0), text.getSelection());
assertEquals((char) 0, text.getEchoChar());
}
@Test
public void testSelection() {
// test select all
text.setText("abc");
text.selectAll();
assertEquals(new Point(0, 3), text.getSelection());
assertEquals("abc", text.getSelectionText());
// test clearSelection
text.setText("abc");
text.clearSelection();
assertEquals(new Point(0, 0), text.getSelection());
assertEquals("", text.getSelectionText());
// test setSelection
text.setText("abc");
text.setSelection(1);
assertEquals(new Point(1, 1), text.getSelection());
assertEquals(0, text.getSelectionCount());
assertEquals("", text.getSelectionText());
text.setSelection(1000);
assertEquals(new Point(3, 3), text.getSelection());
assertEquals(0, text.getSelectionCount());
assertEquals("", text.getSelectionText());
Point saveSelection = text.getSelection();
text.setSelection(-1);
assertEquals(saveSelection, text.getSelection());
assertEquals(0, text.getSelectionCount());
assertEquals("", text.getSelectionText());
text.setText("abcdefg");
text.setSelection(new Point(5, 2));
assertEquals(new Point(2, 5), text.getSelection());
// test selection when changing text
text.setText("abcefg");
text.setSelection(1, 2);
text.setText("gfecba");
assertEquals(new Point(0, 0), text.getSelection());
// ... even setting the same text again will clear the selection
text.setText("abcefg");
text.setSelection(1, 2);
text.setText(text.getText());
assertEquals(new Point(0, 0), text.getSelection());
}
@Test
public void testGetCaretPosition() {
Text text = new Text(shell, SWT.SINGLE);
text.setText("Sample text");
assertEquals(0, text.getCaretPosition());
text.setSelection(5);
assertEquals(5, text.getCaretPosition());
text.setSelection(3, 8);
assertEquals(3, text.getCaretPosition());
text.setSelection(8, 5);
assertEquals(5, text.getCaretPosition());
text.setText("New text");
assertEquals(0, text.getCaretPosition());
text.setSelection(3, 8);
text.clearSelection();
assertEquals(new Point(8, 8), text.getSelection());
assertEquals(8, text.getCaretPosition());
}
// Separating out the call to append text to a widget so we can work on its
// behavior.
// We'd like this to not scroll if the cursor is not at the bottom of the
// window
// and SWT's append method always scrolls.
private void appendTextToWidget(Text widget, String text) {
// If set this to true we just use standard append
// and always scroll.
boolean kUseAppend = false;
if (kUseAppend) {
widget.append(text);
} else {
// A more sophisticated routine for inserting text
// at the end of the widget without scrolling unless
// current selection is already at the end.
Point currentSelection = widget.getSelection();
int length = widget.getCharCount();
if (currentSelection.x == length) widget.append(text);
else {
// The calls to setRedraw are needed because there's a bug
// on SWT in Windows where setSelection() calls scroll caret
// always
// which it really shouldn't. So we need to suppress that
// behavior by
// turning redraw on and off. However that incurs the cost of
// redrawing the
// entire widget in the setRedraw(true) call which shouldn't be
// needed.
// Because of this we only use this code if the selection isn't
// at the end
// of the widget.
widget.setRedraw(false);
widget.setSelection(length, length);
widget.insert(text);
widget.setSelection(currentSelection);
widget.setRedraw(true);
if (currentSelection.x == length) widget.showSelection();
}
}
}
public Point getSelection() {
checkWidget();
return text.getSelection();
}
public Point getSelection() {
return fText.getSelection();
}
public boolean isScrolledToBottom() {
Point currentSelection = m_Text.getSelection();
int length = m_Text.getCharCount();
return (currentSelection.x == length);
}