@Override
public void valueChanged(String key, Object oldValue, Object newValue) {
super.valueChanged(key, oldValue, newValue);
// if(isComputeField){//如果是表达式字段，需要重新计算
presentValue();
// }
}
@Override
protected void createControl(Composite parent) {
isComputeField = field.isComputeField();
String fieldType = field.getType();
// 类型检查 并且根据数据类型设置文本的对齐方式
int style;
if (isComputeField) {
style = SWT.NONE;
} else {
style = SWT.BORDER;
}
if (field.isPassword()) {
style = style | SWT.PASSWORD;
}
if ((IFieldTypeConstants.FIELD_INTEGER.equals(fieldType))
|| (IFieldTypeConstants.FIELD_DOUBLE.equals(fieldType))) {
style = style | SWT.RIGHT;
} else if (IFieldTypeConstants.FIELD_STRING.equals(fieldType)) {
} else {
Assert.isLegal(false, TYPE_MISMATCH + field.getId());
}
control = new Text(parent, style);
GridData td = getControlLayoutData();
control.setLayoutData(td);
if (!isComputeField) {
// 设置字数限制
int textLimit = field.getTextLimit();
if (textLimit != 0) {
control.setTextLimit(textLimit);
}
// 设置如何设置值
control.addFocusListener(
new FocusListener() {
@Override
public void focusLost(FocusEvent event) {
// 如果只读，不做任何变化
if (isEditable) {
updateDataValueAndPresent();
}
}
@Override
public void focusGained(FocusEvent event) {
if (isEditable && isValuePresented()) {
String editableValue = getValue() == null ? "" : getValue().toString();
control.setText(editableValue);
}
}
});
// 设置字数控制提示
if ((textLimit != 0)
&& (field.isEditable())
&& (!isValuePresented())
&& (field.getType().equals(IFieldTypeConstants.FIELD_STRING))) {
new TextLimitToolTipsControl(this);
}
// 设置编辑提示
String textMessage = field.getTextMessage();
if (!Util.isNullOrEmptyString(textMessage)) {
control.setMessage(textMessage);
}
}
super.createControl(parent);
}