finddialog.java

textviewer 一个手机上的文本浏览器实现

package textViewer;

import javax.microedition.lcdui.*;
import midletLib.PromptDialog;

public class FindDialog extends PromptDialog {
    
    //   private int max;
   protected Paginator paginator;
    protected PageCounter pageCounter;
    protected String text;
    protected String lcText;

    public FindDialog(Form callingForm, Display disp, String text, Paginator paginator, PageCounter pageCounter) 
    {
	super("Search", "Search for what?", "", 1000, TextField.ANY, callingForm, disp);
//TODO: constant

	this.paginator = paginator;
	this.pageCounter = pageCounter;

    }

    public void setMaxPage(int max) 
    {
	//	this.max = max;
	entry.setLabel("Goto page # (max " + Integer.toString(max) + "):");
    }

    protected void setText(String text) 
    {
	this.text = text;
	lcText = null;
    }

    protected void doOkay(String response)
    {
	if (lcText == null)
	    {lcText = text.toLowerCase();}
	    
	// find
	int index = lcText.indexOf(response.toLowerCase());
	int page = paginator.indexToPage(index);
	pageCounter.setValue(page);
	//TODO: "not found" message
    }

}