package myprojects.FrmXMFL;

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


/*本類用于顯示輸入文本框，
*來源于SWT幫助文檔Listing 7-7: ShowInputDialog.java ，作了少量調(diào)整。
*/
public class FrmXMFLInput extends Dialog {
  private String message;
  private String input;

 
   public FrmXMFLInput(Shell parent) {
    this(parent, SWT.BORDER|SWT.TITLE);
  }

 
  public FrmXMFLInput(Shell parent, int style) {
    super(parent, style);
    setText("Input Dialog");
    setMessage("Please enter a value:");
  }


  public String getMessage() {
    return message;
  }


  public void setMessage(String message) {
    this.message = message;
  }


  public String getInput() {
    return input;
  }


  public void setInput(String input) {
    this.input = input;
  }


  public String open() {
    Shell shell = new Shell(getParent(), getStyle());
    shell.setText(getText());
    createContents(shell);
    shell.pack();
    shell.setLocation(shell.getParent().getLocation().x+20,
    				shell.getParent().getLocation().y+20);
    shell.open();
    Display display = getParent().getDisplay();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
        display.sleep();
      }
    }

    return input;
  }

  /**
   * 設(shè)置輸入框內(nèi)容
   *
   * 
   */
  private void createContents(final Shell shell) {
    shell.setLayout(new GridLayout(2, true));

    Label label = new Label(shell, SWT.NONE);
    label.setText(message);
    GridData data = new GridData();
    data.horizontalSpan = 2;
    label.setLayoutData(data);

    final Text text = new Text(shell, SWT.BORDER);
    data = new GridData(GridData.FILL_HORIZONTAL);
    data.horizontalSpan = 2;
    text.setLayoutData(data);
    text.setText(input);
    text.selectAll();

    Button ok = new Button(shell, SWT.PUSH);
    ok.setText("確認(rèn)");
    data = new GridData(GridData.FILL_HORIZONTAL);
    ok.setLayoutData(data);
    ok.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        input = text.getText().trim();
        shell.close();
      }
    });

    Button cancel = new Button(shell, SWT.PUSH);
    cancel.setText("取消");
    data = new GridData(GridData.FILL_HORIZONTAL);
    cancel.setLayoutData(data);
    cancel.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        input = null;
        shell.close();
      }
    });
    
   shell.setDefaultButton(ok);
  }
}