Java开发网 - 请教一个关于SashFORM的问题！请各位帮忙！

Topic: 请教一个关于SashFORM的问题！请各位帮忙！

1.请教一个关于SashFORM的问题！请各位帮忙！

Posted by: liankun
Posted on: 2004-10-28 14:00

开发中遇到如下问题，我在SASHFORM中添加的控件如果嵌套的层次比较多，则会出现刷新的问题。
如下的代码，我加了一个表格到SASHFORM中去，该表格在双击SHELL最大化的时候，刷新异常。表格添加是在方法PPP中！

请高手指点：


/*
 * Created on 2004-10-25
 */
package org.jeff.swt;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.SashForm;
import org.eclipse.swt.custom.StackLayout;
import org.eclipse.swt.events.*;
import org.eclipse.swt.events.ControlAdapter;
import org.eclipse.swt.events.ControlEvent;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

/**
 * @author JeffLian.
 */
public class T08 {

    public static void main(String[] args) {

        final Display display = new Display();
        Shell shell = new Shell(display);
        shell.setLayout(new FillLayout());

        JComposite parent1 = new JComposite(shell, SWT.NONE);
        parent1.setLayout(new FillLayout());

        JComposite parent = new JComposite(parent1, SWT.BORDER);

        GridLayout layout = new GridLayout();
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        layout.verticalSpacing = 0;
        parent.setLayout(layout);

        JComposite pane = new JComposite(parent, SWT.BORDER);
        pane.setLayoutData(new GridData(GridData.FILL_BOTH));        
        pane.setLayout(new FillLayout());
        
        JComposite aa = new JComposite(pane, SWT.NONE);                
        createPartControl(aa);

        shell.setBounds(20, 30, 500, 500);
        shell.open();
        while (!shell.isDisposed()){
            if (!display.readAndDispatch()) display.sleep();
        }
        display.dispose();

    }

    public static void createPartControl(JComposite parent) {
        GridLayout layout = new GridLayout();
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        layout.verticalSpacing = 0;
        parent.setLayout(layout);

        JComposite control = new JComposite(parent, SWT.BORDER);
        control.setLayoutData(new GridData(GridData.FILL_BOTH));

        GridLayout controlLayout = new GridLayout();
        controlLayout.horizontalSpacing = 0;
        controlLayout.verticalSpacing = 0;
        controlLayout.marginHeight = 0;
        controlLayout.marginWidth = 0;

        control.setLayout(controlLayout);

        JComposite contentArea = new JComposite(control, SWT.NONE);
        GridData clientData = new GridData(GridData.FILL_BOTH);
        contentArea.setLayoutData(clientData);

        //StackLayout contentLayout = new StackLayout();
        //contentArea.setLayout(contentLayout);
        contentArea.setLayout(new FillLayout());

        JComposite ppp = new JComposite(contentArea, SWT.NONE);
        PPP(ppp);

        //contentLayout.topControl = ppp;
        if (parent != null) return;
    }

    public static void PPP(JComposite parent) {
        GridLayout layout = new GridLayout();
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        layout.verticalSpacing = 0;
        parent.setLayout(layout);

        JComposite pane1 = new JComposite(parent, SWT.BORDER);
        pane1.setLayoutData(new GridData(GridData.FILL_BOTH));

        pane1.setLayout(new GridLayout());

        Label label = new Label(pane1, SWT.PUSH);
        label.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        label.setText("sdfsdf");

        //SashForm form = new SashForm(pane1, SWT.VERTICAL);
       
        //sashform在此处添加。

        final SashForm form = new SashForm(pane1, SWT.VERTICAL);
        form.setLayoutData(new GridData(GridData.FILL_BOTH));
        form.setLayout(new GridLayout());

        JComposite child1 = new JComposite(form, SWT.NONE);
        child1.setLayoutData(new GridData(GridData.FILL_BOTH));
        child1.setLayout(new FillLayout());
        //table = new CTable(child1, new CellDisplay(), new Renderer());
        new Label(child1, SWT.NONE).setText("Label in pane 1");

        JComposite child2 = new JComposite(form, SWT.NONE);
        child2.setLayoutData(new GridData(GridData.FILL_BOTH));
        child2.setLayout(new FillLayout());
        new Button(child2, SWT.PUSH).setText("Button in pane2");

        final JComposite child3 = new JComposite(form, SWT.NONE);
        child3.setLayoutData(new GridData(GridData.FILL_BOTH));
        child3.setLayout(new GridLayout());

        final JComposite ccc = new JComposite(child3, SWT.BORDER);
        ccc.setLayoutData(new GridData(GridData.FILL_BOTH));
        ccc.setLayout(new GridLayout());

        final JComposite ddd = new JComposite(ccc, SWT.BORDER);
        ddd.setLayoutData(new GridData(GridData.FILL_BOTH));
        ddd.setLayout(new GridLayout());
        
        //此处的表格多嵌套了几个COMPOSITE,

        final Table table = new Table(ddd, SWT.FULL_SELECTION);
        table.setLayoutData(new GridData(GridData.FILL_BOTH));

        table.setItemCount(10);
        table.setHeaderVisible(true);
        table.setLinesVisible(true);

        TableColumn col1 = new TableColumn(table, SWT.CENTER);
        col1.setText(" col1");
        col1.setWidth(90);
        TableColumn col2 = new TableColumn(table, SWT.CENTER);
        col2.setText(" col2");
        col2.setWidth(90);

        for (int i = 0; i < 10; i++){
            TableItem item = new TableItem(table, SWT.NONE);
            item.setText(new String[] { "row", "row" + i });
            item.setImage(0, null);
        }
        
        table.addControlListener(new ControlAdapter(){
            /* (non-Javadoc)
             * @see org.eclipse.swt.events.ControlAdapter#controlMoved(org.eclipse.swt.events.ControlEvent)
             */
            public void controlMoved(ControlEvent e) {
                System.out.println("table moved: "+ table.getBounds() );
            }
            
            /* (non-Javadoc)
             * @see org.eclipse.swt.events.ControlAdapter#controlResized(org.eclipse.swt.events.ControlEvent)
             */
            public void controlResized(ControlEvent e) {
                System.out.println("table resized: "+ table.getBounds() );
            }
        });
        
        table.getShell().addControlListener(new ControlListener() {
            public void controlMoved(ControlEvent e) {
                System.out.println("shell moved, ");
                form.layout(true);

            }

            public void controlResized(ControlEvent e) {
                System.out.println("shell resized, table bound: " + table.getBounds());
                form.layout(true);
                table.redraw();
            }            
        });
        
        child3.addControlListener(new ControlListener() {
            public void controlMoved(ControlEvent e) {
                System.out.println("child3 moved, ");
            }

            public void controlResized(ControlEvent e) {
                System.out.println("child3 resized,  " + child3.getBounds());
            }            
        });
        
        ccc.addControlListener(new ControlListener() {
            public void controlMoved(ControlEvent e) {
                System.out.println("ccc moved, ");
            }

            public void controlResized(ControlEvent e) {
                System.out.println("ccc resized,  " + ccc.getBounds());
            }            
        });
        
        ddd.addControlListener(new ControlListener() {
            public void controlMoved(ControlEvent e) {
                System.out.println("ddd moved, ");
            }

            public void controlResized(ControlEvent e) {
                System.out.println("ddd resized,  " + ddd.getBounds());
                table.setBounds(ddd.getBounds());
                table.redraw();
            }            
        });
        
        
        form.setWeights(new int[] { 30, 40, 30 });

        if (form != null) return;

    }
    
    
    public static class JComposite extends Composite{

        /**
         * 
         */
        JComposite(Composite parent, int style) {
            super(parent, style);
        }
        
        
        /* (non-Javadoc)
         * @see org.eclipse.swt.widgets.JComposite#layout()
         */
        public void layout() {
            System.out.println("layout");
            super.layout();            
        }
        
        
        /* (non-Javadoc)
         * @see org.eclipse.swt.widgets.Composite#layout(boolean)
         */
        public void layout(boolean changed) {
            System.out.println("layout");
            super.layout(changed);
        }
    }
}

2.Re:请教一个关于SashFORM的问题！请各位帮忙！ [Re: liankun]	Copy to clipboard
Posted by: liankun Posted on: 2004-10-28 19:31 PLS HELP ME !

3.Re:请教一个关于SashFORM的问题！请各位帮忙！ [Re: liankun]	Copy to clipboard
Posted by: kavinwang Posted on: 2004-10-29 09:04 我倒是想帮你，可是我对swt不熟悉，唉！

4.Re:请教一个关于SashFORM的问题！请各位帮忙！ [Re: liankun]	Copy to clipboard
Posted by: liankun Posted on: 2004-10-29 16:43 难道此处没有高人！！

5.Re:请教一个关于SashFORM的问题！请各位帮忙！ [Re: liankun]	Copy to clipboard
Posted by: kavinwang Posted on: 2004-10-29 16:50 liankun wrote: 难道此处没有高人！！看起来没有！

6.Re:请教一个关于SashFORM的问题！请各位帮忙！ [Re: liankun]

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Posted by: xiaomage234
Posted on: 2004-10-30 15:03

liankun:

我试了一下，没有异常啊

这是打出来的信息：

shell moved,
shell resized, table bound: Rectangle {0, 0, 0, 0}
child3 moved,
child3 resized, Rectangle {0, 301, 466, 128}
ccc moved,
ccc resized, Rectangle {5, 5, 456, 118}
ddd moved,
ddd resized, Rectangle {5, 5, 442, 104}
table moved: Rectangle {5, 5, 442, 104}
table resized: Rectangle {5, 5, 442, 104}
table resized: Rectangle {5, 5, 428, 90}
shell resized, table bound: Rectangle {5, 5, 428, 90}
shell moved,
shell moved,
shell moved,
shell moved,
shell resized, table bound: Rectangle {5, 5, 428, 90}
child3 moved,
child3 resized, Rectangle {0, 475, 998, 202}
ccc resized, Rectangle {5, 5, 988, 192}
ddd resized, Rectangle {5, 5, 974, 178}
table resized: Rectangle {5, 5, 974, 178}
table resized: Rectangle {5, 5, 960, 164}
shell moved,
shell resized, table bound: Rectangle {5, 5, 960, 164}
shell moved,
shell resized, table bound: Rectangle {5, 5, 960, 164}
shell moved,
shell resized, table bound: Rectangle {5, 5, 960, 164}
child3 moved,
child3 resized, Rectangle {0, 301, 466, 128}
ccc resized, Rectangle {5, 5, 456, 118}
ddd resized, Rectangle {5, 5, 442, 104}
table resized: Rectangle {5, 5, 442, 104}
table resized: Rectangle {5, 5, 428, 90}

7.Re:请教一个关于SashFORM的问题！请各位帮忙！ [Re: liankun]

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Posted by: liankun
Posted on: 2004-11-01 15:28

TO:xiaomage234

该表格在双击SHELL最大化的时候或拖动SHELL的时候，刷新异常：
异常表现为：表格没有撑满父Composite,而拖动SASHFORM中的风格条表格则可以撑满父Composite，

或者你可以试一下把表格的父COMPOSITE少套一层，就可以看到SHELL Resize的时候表格可以正常撑满，而多了一层COMPOSITE,表格就无法在SHELL RESIZE的时候正常撑满，即表现为刷新异常！！

8.Re:请教一个关于SashFORM的问题！请各位帮忙！ [Re: liankun]	Copy to clipboard
Posted by: liankun Posted on: 2004-11-01 15:29 程序本身没有抛出异常，，呵呵，，误导大家了，应该是刷新出异常！

9.Re:请教一个关于SashFORM的问题！请各位帮忙！ [Re: liankun]	Copy to clipboard
Posted by: xiaomage234 Posted on: 2004-11-01 17:50 我这刷新也没出异常啊~ 运行正常

10.Re:请教一个关于SashFORM的问题！请各位帮忙！ [Re: liankun]

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Posted by: liankun
Posted on: 2004-11-02 10:51

你是在WIN2000下跑的么？我在WIN2000下面确实出现这个TABLE没有填满COMPOSITE .

另外，请看这个测试程序，


/*
 * Created on 2004-11-2
 *
 */
package org.jeff.swt;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

/**
 * @author JeffLian.
 *
 */
public class T10 {

    public static void main(String[] args) {
        //create shell
        final Display display = new Display();
        Shell shell = new Shell(display);
        shell.setLayout(new FillLayout());
        
        //create content 
        Composite content = new Composite(shell, SWT.NONE);
        content.setLayout(new FillLayout());
        
        /**---------------------------------------------
         * add child composite 
         * When the variable "len" less than 11, the Button will show normal 
         * 
         * Can anyone tell me that whether or not the nested composite have the number limit ?
         * and how to avoid this problem ?
         *  
         ---------------------------------------------*/
        int len = 11;
        Composite kk = new Composite(content, SWT.BORDER);
        kk.setLayout(new FillLayout());
        for(int i=0; i< len ;i++ ){
            kk = new Composite(kk, SWT.BORDER);
            kk.setLayout(new FillLayout());
        }
        
        new Button(kk,SWT.PUSH).setText("BUTTON");
        
        
        shell.setBounds(20, 30, 500, 500);
        shell.open();
        while (!shell.isDisposed()){
            if (!display.readAndDispatch()) display.sleep();
        }
        display.dispose();
    
    }
}

11.Re:请教一个关于SashFORM的问题！请各位帮忙！ [Re: liankun]	Copy to clipboard
Posted by: liankun Posted on: 2004-11-02 10:52 len = 11的时候 BUTTON根本就无法显示出来，而只有LEN <11的时候，BUTTON才可以正常的显示出来！

12.Re:请教一个关于SashFORM的问题！请各位帮忙！ [Re: liankun]	Copy to clipboard
Posted by: xiaomage234 Posted on: 2004-11-02 16:28 呵呵，挺过瘾的~ 我的到len=21都没事，不过到22的时候就不行了，终于看到你说的效果了！！！可能跟IDE 有关系吧我用的是eclipse3.0 os也是win2k 不过这种现象是像你说的刷新有问题，如果你拖到最大化的话，还是没问题的~

13.Re:请教一个关于SashFORM的问题！请各位帮忙！ [Re: liankun]	Copy to clipboard
Posted by: liankun Posted on: 2004-11-04 10:21 你的SWT DLL是什么版本？我在使用LEN = 11 的时候，按钮无法出来了，最大化窗口也没有作用的！

14.Re:请教一个关于SashFORM的问题！请各位帮忙！ [Re: liankun]	Copy to clipboard
Posted by: xiaomage234 Posted on: 2004-11-08 17:24 swt-win32-3062.dll eclipse3.0.0里带的