cn.mapway.ui.client.widget.common.NumberTextBox Maven / Gradle / Ivy

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package cn.mapway.ui.client.widget.common;

import com.google.gwt.event.dom.client.KeyUpEvent;
import com.google.gwt.event.dom.client.KeyUpHandler;

/**
 * The type Number text box.
 */
public class NumberTextBox extends TextBoxEx implements KeyUpHandler {


    @Override
    public String getValue() {
        String v = super.getValue();
        if (v == null || v.length() == 0) {
            return "0";
        }
        return v;
    }

    ;


    /**
     * Instantiates a new Number text box.
     */
    public NumberTextBox() {
        setStyleName("gwtEx-TextBox");
        init();
    }

    private void init() {
        this.addKeyUpHandler(this);
        setPattern("^(-?\\d+)(\\.\\d+){0,1}$");
    }

    @Override
    public boolean isValidate() {
        String v = getValue();
        if (regex.test(v)) {
            Double d = Double.valueOf(v);
            if (this.min != null) {
                if (d < this.min) {
                    return false;
                }
            }
            if (this.max != null) {
                if (d > this.max) {
                    return false;
                }
            }
            return true;
        }
        return false;
    }

    @Override
    public void onKeyUp(KeyUpEvent event) {
        String value = this.getValue();
        value = value.replaceAll("[^\\d\\.\\-]", "");
        this.setValue(value);
    }

    /**
     * Check num boolean.
     *
     * @return the boolean
     */
    public boolean checkNum() {
        String value = this.getValue();
        String reg = "^(\\-|\\+)?\\d+(\\.\\d+)?$";
        return value.matches(reg);
    }

    /**
     * The Min.
     */
    Double min = null;
    /**
     * The Max.
     */
    Double max = null;

    /**
     * 设置最小值
     *
     * @param min the min
     */
    public void setMin(double min) {
        this.min = min;
    }

    /**
     * 设置最大值
     *
     * @param max the max
     */
    public void setMax(double max) {
        this.max = max;
    }


}