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yjp:
效果丢失了,也好不了多少
SWT中使用JFreeChart(无需SWT_AWT) -
vfbrhvfbgd:
LZ,您好,
在网上找到了很多类似你这样的代码,请问您这 ...
一个使用SWT Ribbon代替Eclipse-RCP上面Coolbar的例子~ -
sdyjmc:
我也在看,发现Search不起作用。msn:sdyjmc@16 ...
读jlibrary代码的部分疑问,希望有人解答~ -
alaham:
jlibray研究得如何了呢?权限问题解决了吗?
我目前也正 ...
读jlibrary代码的部分疑问,希望有人解答~ -
bbiao:
你把代码抄错了,范型是不可以这么定义的....
这种模式我也 ...
从Hibernate范型DAO设计打造的自用DAO
打造仿淘宝注册的Text(二)
上次贴了几张图片出来显摆,这次彻底公布代码~大家看看原理就好,有兴趣的朋友可以和我联系,把SWT里面的控件都封装一下,做一套验证框架出来~
大家可以看到整个类中没有布局的出现,其实真的是“无布局才是最好的布局!”,没有布局反倒更加的灵活了,方便谈不上,但是灵活性大大提高;
Demo下载
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package com.glnpu.dmp.controls;
2![](/Images/OutliningIndicators/None.gif)
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.events.ControlEvent;
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import org.eclipse.swt.events.ControlListener;
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import org.eclipse.swt.events.ModifyEvent;
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import org.eclipse.swt.events.ModifyListener;
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import org.eclipse.swt.events.PaintEvent;
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import org.eclipse.swt.events.PaintListener;
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import org.eclipse.swt.graphics.GC;
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import org.eclipse.swt.graphics.Image;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Display;
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import org.eclipse.swt.widgets.Text;
15![](/Images/OutliningIndicators/None.gif)
16![](/Images/OutliningIndicators/ExpandedBlockStart.gif)
public class SuperText extends Composite implements PaintListener, ControlListener
{
17![](/Images/OutliningIndicators/InBlock.gif)
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private Text text;
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private Image tempCorner;
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private Image tempMsg;
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private Image warning_corner;
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private Image ok_corner;
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private Image error_corner;
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private Image msg_warning;
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private Image msg_ok;
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private Image msg_error;
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/** *//**
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* Create the composite
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* @param parent
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* @param style
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*/
41![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public SuperText(Composite parent, int style)
{
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super(parent, SWT.NONE);
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initResource();
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initControls(style);
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this.addPaintListener(this);
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this.addControlListener(this);
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}
48![](/Images/OutliningIndicators/InBlock.gif)
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private void initResource()
{
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warning_corner = new Image(Display.getDefault(), "icons/input_warning_corner.gif");
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ok_corner = new Image(Display.getDefault(), "icons/input_ok_corner.gif");
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error_corner = new Image(Display.getDefault(), "icons/input_error_corner.gif");
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msg_warning = new Image(Display.getDefault(), "icons/standard_msg_warning.gif");
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msg_ok = new Image(Display.getDefault(), "icons/standard_msg_ok.gif");
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msg_error = new Image(Display.getDefault(), "icons/standard_msg_error.gif");
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tempCorner = warning_corner;
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tempMsg = msg_warning;
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}
61![](/Images/OutliningIndicators/InBlock.gif)
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private void initControls(int style)
{
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text = new Text(this, SWT.FLAT|style);
64![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
text.addModifyListener(new ModifyListener()
{
65![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public void modifyText(ModifyEvent e)
{
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if(SuperText.this.text.getText()!=null && !SuperText.this.text.getText().equals(""))
{
67![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
if(SuperText.this.text.getText().length()>10)
{
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tempMsg = msg_ok;
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tempCorner = ok_corner;
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SuperText.this.redraw();
71![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
}else
{
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tempCorner = error_corner;
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tempMsg = msg_error;
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SuperText.this.redraw();
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}
76![](/Images/OutliningIndicators/InBlock.gif)
77![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
}else
{
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System.out.println("do here");
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tempCorner = warning_corner;
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tempMsg = msg_warning;
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SuperText.this.redraw();
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}
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}
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});
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}
86![](/Images/OutliningIndicators/InBlock.gif)
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@Override
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public void dispose()
{
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super.dispose();
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}
91![](/Images/OutliningIndicators/InBlock.gif)
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@Override
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protected void checkSubclass()
{}
94![](/Images/OutliningIndicators/InBlock.gif)
95![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public void paintControl(PaintEvent e)
{
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System.out.println("paintControl");
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GC gc = e.gc;
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gc.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_WHITE));
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gc.fillGradientRectangle(1, 1, this.getSize().x-11-tempMsg.getBounds().width, this.getSize().y-2, false);
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gc.drawRectangle(1, 1, this.getSize().x-11-tempMsg.getBounds().width, this.getSize().y-2);
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//set warning corner
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gc.drawImage(tempCorner, this.getSize().x-11-tempMsg.getBounds().width-tempCorner.getBounds().width, this.getSize().y-2-tempCorner.getBounds().height);
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//set msg warning
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gc.drawImage(tempMsg, this.getSize().x-tempMsg.getBounds().width-5, 1);
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gc.dispose();
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}
109![](/Images/OutliningIndicators/InBlock.gif)
110![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public void controlMoved(ControlEvent e)
{}
111![](/Images/OutliningIndicators/InBlock.gif)
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public void controlResized(ControlEvent e)
{
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text.setBounds(2, 2, this.getSize().x-12-tempMsg.getBounds().width-tempCorner.getBounds().width, this.getSize().y-3);
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}
115![](/Images/OutliningIndicators/InBlock.gif)
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}
117![](/Images/OutliningIndicators/None.gif)
实现原理其实就是绘制!所谓自定义控件其实就是两种,一种就是用C写,然后JAVA调用,用SWT封装;第二种就是绘制;第一种的做法其实并不好,会让SWT的控件失去跨平台性~一般的做法都是第二种。![](/Images/OutliningIndicators/None.gif)
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大家可以看到整个类中没有布局的出现,其实真的是“无布局才是最好的布局!”,没有布局反倒更加的灵活了,方便谈不上,但是灵活性大大提高;
Demo下载
发表评论
-
来自网络上的经典文章收藏帖(不断增加中... ...)
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2007-05-15 14:02 1275交口称赞在BLOG中提到了一种让RCP最大化的方法: 在App ... -
如何在ViewPart上添加ViewToolBar
2007-05-15 17:58 3754ViewToolBar其实就是Actions。在ViewPar ... -
郁闷的Perspective
2007-05-15 18:11 894下午正式开始RCP开发,于是乎轻车熟路的开始打基础框架。 ... -
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2007-05-18 10:30 1283昨天在Bolg中贴出来一个很不错的RCP项目http://jl ... -
简单应用Maven2
2007-05-18 13:54 843Maven2对项目的管理确实可以说是无微不至的,而且给出了大量 ... -
介绍一个好站
2007-05-20 10:42 759http://www.krugle.com/代码搜索工具,使用 ... -
Eclipse3.3m7 VS Eclipse3.2.2
2007-05-22 08:37 1020Eclipse3.3m7 VS Eclipse3.2.2没有深 ... -
西安java用户群成立~_~
2007-05-23 15:58 762西安java用户群,感谢dudu,为我们开通团队,所有西安ja ... -
RCP的异常
2007-05-25 12:53 802上次的一篇文章问到为什么TreeViewer没有刷新, ... -
正在规划一个Eclipse上看RSS的Plugin
2007-06-04 08:50 920目前正在规划阶段,初步想法是,实现一个周博通的EclipseP ... -
初识DB4O
2007-06-10 11:15 722DB4O? 新出的OODBMS~取谐音DB fo ... -
如何用WebStart部署RCP应用程序?
2007-06-11 17:19 842上传一份同事写的预研文档:WebStartToRCP.doc ... -
RCP开发者的好去处之ICON系列(持续更新中... ...)
2007-06-11 20:49 842为了找个合适的图片是不是头大的不像样子了?OK,我现在 ... -
庆祝一下~RCP开发者的福音到了!
2007-06-14 22:04 797今天在Eclipse站上学习如何使用Maven2管理Eclip ... -
再次理解Eclipse的类加载机制
2007-06-18 15:13 1034今天在写RCP的基础运行插件的时候,发现一个非常有意思的问题: ... -
插件开发依赖其他插件时一定要注意!
2007-06-19 14:18 2130插件开发依赖其他插件时,我们要在plugin.xml的depe ... -
RCP实践之软件架构
2007-06-19 21:22 651RCP还是新兴的东西,大家都是用它做做小东东,所以在网 ... -
RCP实践之第三方JAR包
2007-06-20 21:43 3153感谢大家对上一篇文章的拍砖,引起的反响不小,目的达到了 ... -
RCP实践之安全模型
2007-06-21 21:52 1023感谢大家最近对本 ...
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此项目是仿淘宝做的一个Demo应用,只作为技术学习使用,不做任何商业用途,请勿使用此项目进行任何形式的商业活动。 下面是本项目中主要实现的功能: 1:商品的基本展示 2:二维码扫描 3:刮刮乐功能 4:购物车...
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