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使用DecoratedField装饰SWT Control

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DecoratedField用来实现对Control的装饰，可以为button,combo,text等控件做出效果。

作者：moneyice 来源：CSDN 2008年2月10日

关键字： SWT Control 装饰 DecoratedField

DecoratedField用来实现对Control的装饰，可以为button,combo,text等控件做出如下效果。

控件边上提示的种类有4种，分别是Proposal, Required, error, warning.

代码很简单：

package jface;

import org.eclipse.jface.fieldassist.DecoratedField;

import org.eclipse.jface.fieldassist.FieldDecoration;

import org.eclipse.jface.fieldassist.FieldDecorationRegistry;

import org.eclipse.jface.fieldassist.IControlCreator;

import org.eclipse.jface.layout.GridDataFactory;

import org.eclipse.swt.SWT;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.Button;

import org.eclipse.swt.widgets.Combo;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Control;

import org.eclipse.swt.widgets.Display;

import org.eclipse.swt.widgets.Shell;

import org.eclipse.swt.widgets.Text;

/**

* This class demonstrates TableViewers

public class FieldDecorationDemo {

public void run() {

Display display = new Display();

Shell shell = new Shell(display);

shell.setSize(200, 200);

shell.setText("Button Example");

shell.setLayout(new GridLayout());

createFieldDecoration(shell);

shell.open();

while (!shell.isDisposed()) {

if (!display.readAndDispatch())

display.sleep();

}

display.dispose();

}

private void createFieldDecoration(Shell shell) {

createCombo(shell);

createButton(shell);

createText(shell);

}

private void createText(Shell shell) {

IControlCreator cbCtrl = new IControlCreator() {

public Control createControl(final Composite parent, final int style) {

Text text = new Text(parent, style);

text.setText("text");

return text;

}

};

DecoratedField dField = new DecoratedField(shell, SWT.BORDER, cbCtrl);

FieldDecoration decoration = FieldDecorationRegistry.getDefault().getFieldDecoration(FieldDecorationRegistry.DEC_ERROR);

dField.addFieldDecoration(decoration, SWT.LEFT | SWT.TOP, false);

}

private void createButton(Shell shell) {

IControlCreator cbCtrl = new IControlCreator() {

public Control createControl(final Composite parent, final int style) {

Button button = new Button(parent, style);

button.setText("button");

return button;

}

};

DecoratedField dField = new DecoratedField(shell, SWT.BORDER, cbCtrl);

FieldDecoration decoration = FieldDecorationRegistry.getDefault().getFieldDecoration(

FieldDecorationRegistry.DEC_CONTENT_PROPOSAL);

dField.addFieldDecoration(decoration, SWT.LEFT | SWT.TOP, false);

}

private void createCombo(Shell shell) {

IControlCreator cbCtrl = new IControlCreator() {

public Control createControl(final Composite parent, final int style) {

Combo cb = new Combo(parent, style);

cb.setText("combo");

return cb;

}

};

DecoratedField dField = new DecoratedField(shell, SWT.BORDER, cbCtrl);

FieldDecoration decoration = FieldDecorationRegistry.getDefault()

.getFieldDecoration(FieldDecorationRegistry.DEC_REQUIRED);

dField.addFieldDecoration(decoration, SWT.RIGHT | SWT.TOP, false);

}

public static void main(String[] args) {

new FieldDecorationDemo().run();

}

查看本文来源

使用DecoratedField装饰SWT Control

使用DecoratedField装饰SWT Control

使用DecoratedField装饰SWT Control

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