tableviewerimplbyswt.java

用SWT实现的一个tableviewer,tableviewer的各种功能都体现出来.

package net.advanced.eclipse.sample.views;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CCombo;
import org.eclipse.swt.custom.TableEditor;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.ProgressBar;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.forms.widgets.Hyperlink;
import org.eclipse.ui.part.ViewPart;

/**
 * @Title: TableViewerImplBySWT.java
 * @Copyright: 
 * @Company: 
 * @Created on 2005-11-25 14:34:40
 * @author sunqh
 * @version $Revision: 1.11 $
 * @since 1.0
 */

public class TableViewerImplBySWT extends ViewPart{
    private Table table;
    private TableEditor editor;
    private Text text;
    private CCombo combo;
    private Hyperlink link;

    public void createPartControl(Composite parent){
        GridLayout layout=new GridLayout();
        GridData gd=new GridData(GridData.FILL_BOTH);
        gd.grabExcessHorizontalSpace=true;
        gd.grabExcessVerticalSpace=true;
        gd.heightHint=0;
        gd.horizontalIndent=0;
        gd.widthHint=0;

        parent.setLayout(layout);
        parent.setLayoutData(gd);

        table=new Table(parent,SWT.BORDER|SWT.MULTI);
        table.setHeaderVisible(true);
        table.setLinesVisible(true);
        gd=new GridData(GridData.FILL_BOTH);
        table.setLayoutData(gd);

        addColumns();
        addItems();

        editor=new TableEditor(table);
        editor.horizontalAlignment=SWT.LEFT;
        editor.grabHorizontal=true;

        table.addListener(SWT.MouseDown,new Listener(){
            public void handleEvent(Event event){
                Rectangle clientArea=table.getClientArea();
                Point pt=new Point(event.x,event.y);
                int index=table.getTopIndex();
                while(index<table.getItemCount()){
                    boolean visible=false;
                    final TableItem item=table.getItem(index);
                    for(int i=0;i<table.getColumnCount();i++){
                        Rectangle rect=item.getBounds(i);
                        if(rect.contains(pt)){
                            final int column=i;
                            
                            if(link != null && !link.isDisposed())
                                link.dispose();
                            if(text != null && !text.isDisposed())
                                text.dispose();
                            if(combo!=null&&!combo.isDisposed())
                                combo.dispose();

                            Listener textListener=new Listener(){
                                public void handleEvent(final Event e){
                                    switch(e.type){
                                    case SWT.FocusOut:
                                        if(column==1){
                                            item.setText(column,combo.getText());
                                            combo.dispose(); 
                                        }else{
                                            item.setText(column,text.getText());
                                            text.dispose(); 
                                        }
                                        break;
                                    }
                                }
                            };

                            if(column==1){
                                combo=new CCombo(table,SWT.FLAT);
                                combo.addListener(SWT.FocusOut,textListener);
                                combo.add("Male",0);
                                combo.add("Female",1);
                                combo.select(0);
                                editor.setEditor(combo,item,column);
                                combo.setFocus();
                            }else{
                                text=new Text(table,SWT.NONE);
                                text.addListener(SWT.FocusOut,textListener);
                                editor.setEditor(text,item,i);
                                text.setText(item.getText(i));
                                text.selectAll();
                                text.setFocus();
                            }

                            return;
                        }
                        if(!visible&&rect.intersects(clientArea)){
                            visible=true;
                        }
                    }
                    if(!visible)
                        return;
                    index++;
                }
            }
        });
        
        table.addListener (SWT.MouseMove, new Listener () {
            public void handleEvent (Event event) {
                Rectangle clientArea = table.getClientArea ();
                Point pt = new Point (event.x, event.y);
                int index = table.getTopIndex ();
                while (index < table.getItemCount ()) {
                    boolean visible = false;
                    final TableItem item = table.getItem (index);
                    for (int i=0; i<=table.getColumnCount (); i++) {
                        Rectangle rect = item.getBounds (i);
                        if (rect.contains (pt)) {
                            if(i==4){
                                if(link != null && !link.isDisposed())
                                    link.dispose();
                                if(text != null && !text.isDisposed())
                                    text.dispose();
                                if(combo!=null&&!combo.isDisposed())
                                    combo.dispose();
                                
                                link = new Hyperlink(table,SWT.COLOR_WHITE);
                                link.setText("View");
                                link.setUnderlined(true);
                                link.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
                                link.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_BLUE));
                                editor.setEditor (link, item, i);
                            }
                            return;
                        }
                        if (!visible && rect.intersects (clientArea)) {
                            visible = true;
                        }
                    }
                    if (!visible) return;
                    index++;
                }
            }
        });
    }

    public void addItems(){
        TableItem item1=new TableItem(table,SWT.NONE);
        item1.setText(new String[] { "Richard Sun", "Male", "5000","Xiaoxitian torii,Haidian District,Beijing.","View" });
        
        TableItem item2=new TableItem(table,SWT.NONE);
        item2.setText(new String[] { "Jacky Root", "Female", "6000","Xiaoxitian torii,Haidian District,Beijing.","View" });

        ProgressBar bar=new ProgressBar(table,SWT.HORIZONTAL);
        bar.setMaximum(10);
        bar.setSelection(7);
        
        editor=new TableEditor(table);
        editor.grabHorizontal=editor.grabVertical=true;
        editor.setEditor(bar,item1,5);
        
        bar=new ProgressBar(table,SWT.HORIZONTAL);
        bar.setMaximum(10);
        bar.setSelection(5);
        
        editor=new TableEditor(table);
        editor.grabHorizontal=editor.grabVertical=true;
        editor.setEditor(bar,item2,5);
    }

    public void addColumns(){
        TableColumn employeeName=new TableColumn(table,SWT.LEFT);
        employeeName.setResizable(true);
        employeeName.setText("雇员名称");
        employeeName.setWidth(150);

        TableColumn employeeGender=new TableColumn(table,SWT.CENTER);
        employeeGender.setResizable(true);
        employeeGender.setText("雇员性别");
        employeeGender.setWidth(70);

        TableColumn employeeSalary=new TableColumn(table,SWT.LEFT);
        employeeSalary.setResizable(true);
        employeeSalary.setText("雇员薪资");
        employeeSalary.setWidth(100);

        TableColumn employeeAddress=new TableColumn(table,SWT.LEFT);
        employeeAddress.setResizable(true);
        employeeAddress.setText("雇员联系方式");
        employeeAddress.setWidth(250);
        
        TableColumn employeeDetail=new TableColumn(table,SWT.LEFT);
        employeeDetail.setResizable(true);
        employeeDetail.setText("雇员照片");
        employeeDetail.setWidth(70);
        
        TableColumn employeeAuth=new TableColumn(table,SWT.LEFT);
        employeeAuth.setResizable(true);
        employeeAuth.setText("雇员信息校验");
        employeeAuth.setWidth(100);
    }

    public void setFocus(){
        table.setFocus();
    }
}