Como eu faço para colocar um JFrame transparente?
Tem jeito?
[quote=arm.jr]Como eu faço para colocar um JFrame transparente?
Tem jeito?
[/quote]
Cara , pior que tem …achei um cara aqui que fez …
Dá uma sacada lá …não testei …mas tem um caps lá no site.
[color=red]Janela Tranparente[/color]
:arrow: Link Direto do arquivo
Transparent Window Class - Default branch
Depois coloca aqui se funcionou legal…
T+, espero ter ajudado !
Ou será que vc não teria esse código ai tentei baixar mais o arquivo esta corrompido…
Aguardo a resposta Obrigado.
[quote=rodrigo.java]Ou será que vc não teria esse código ai tentei baixar mais o arquivo esta corrompido…
Aguardo a resposta Obrigado.[/quote]
Segue abaixo o código do JFrame Transparente
/*
* JTransFrame.java
*
* Created on August 21, 2004, 10:27 PM
* A borderless, backgroundless Swing root pane.
* Known issue -- the background change detector can't always intercept requests in the
* underlying UI to update the background when windows move upwards past the JTransFrame
* in the z-order. This sometimes leaves artifacts in the background buffer.
*
* This code was revised and edited by Josh Turner, Thank you very
* much for your contribution.
*
* Original code:
* James Neufeld
* neufeld@cs.ualberta.ca
* www.ugweb.cs.ualberta.ca/~neufeld/transframe.tar.gz
*
*/
package com.readytoware.ui;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.image.*;
public class JTransFrame extends JFrame {
Robot robot;
BufferedImage bi = null;
int redM, greenM, blueM;
boolean trans;
boolean dirty = false;
DirtFlagger dirtFlagger = new DirtFlagger();
Thread thread;
PrimeRun p;
/**
* This constructer takes in the alpha blending
* Values for transparent windows.
*
* @param int r
* @param int g
* @param int b
*/
public JTransFrame(int r, int g, int b) {
setUndecorated(true);
setContentPane(new TransRootPane());
trans = false;
redM = r;
greenM = g;
blueM = b;
}
public JTransFrame() {
this(0,0,0);
}
/**
* This method is true if the window is in transparent mode.
*
* @return boolean trans
*/
public boolean isTransparent() {
return trans;
}
/**
* This method sets the window in or out of transparent mode
*
* @param boolean b
*/
public void setTransparent(boolean b) {
trans = b;
maketrans();
}
/**
* Initializes all the components for the frame.
* Should always be called when a new instance is
* created.
*/
public void initTransComponents() throws Exception {
//label = new JLabel();
//getContentPane().setLayout(null);
//getContentPane().add(label);
robot = new Robot();
p = new PrimeRun(this);
thread = new Thread(p);
thread.start();
}
/**
* This method stops the resize/move listener threads.
*/
public void stopThreads() {
p.running = false;
}
/**
* This method makes the window transparent when called.
*
*/
public void maketrans() {
if (trans) {
removeWindowListener(dirtFlagger);
bi = robot.createScreenCapture(new Rectangle(getLocation().x,
getLocation().y,
getSize().width,
getSize().height));
for (int i=0; i < bi.getHeight(); i++) {
for (int j=0; j < bi.getWidth(); j++) {
int rgba = bi.getRGB(j, i);
int red = (rgba >> 16) & 0xff;
int green = (rgba >> 8) & 0xff;
int blue = rgba & 0xff;
int alpha = (rgba >> 24) & 0xff;
if (red < redM)
red = 0;
else
red -= redM;
if (green < greenM)
green = 0;
else
green -= greenM;
if (blue < blueM)
blue = 0;
else
blue -= blueM;
rgba = (alpha << 24) | (red << 16) | (green << 8) | blue;
bi.setRGB(j, i, rgba);
}
}
getContentPane().repaint();
getRootPane().repaint();
setVisible(true);
dirty = false;
addWindowListener(dirtFlagger);
} else {
validate();
repaint();
}
}
class DirtFlagger implements java.awt.event.WindowListener
{
public void windowStateChanged(WindowEvent e) {
}
public void windowActivated(WindowEvent e) {
dirty = true;
}
public void windowClosed(WindowEvent e) {
}
public void windowClosing(WindowEvent e) {
}
public void windowDeactivated(WindowEvent e) {
//dirty = true;
}
public void windowDeiconified(WindowEvent e) {
dirty = true;
}
public void windowIconified(WindowEvent e) {
}
public void windowOpened(WindowEvent e) {
dirty = true;
}
}
class TransRootPane extends javax.swing.JComponent {
public void paint(java.awt.Graphics g) {
if(trans) {
if(bi != null) {
g.drawImage(bi, 0, 0, null);
}
}
super.paint(g);
}
}
/**
* This Class is basically a resize/move listener.
*
* @author James Neufeld
*
*/
class PrimeRun implements Runnable {
JTransFrame tf;
int x, y, w, h;
public boolean running = true;
/**
* The constructer takes in the frame to listen too.
*
*/
PrimeRun(JTransFrame t) {
tf = t;
y = tf.getLocation().y;
x = tf.getLocation().x;
h = tf.getSize().height;
w = tf.getSize().width;
}
/**
* This method tells the class how to listen to resize/move
* events. It is automatically called when it is used in a
* thread.
*/
public void run() {
while (running) {
while((x == tf.getLocation().x)
&& (y == tf.getLocation().y)
&& (w == tf.getSize().width)
&& (h == tf.getSize().height)
&& (!dirty)
&& (running)) { }
x = tf.getLocation().x;
y = tf.getLocation().y;
h = tf.getSize().height;
w = tf.getSize().width;
if (tf.isTransparent()) {
tf.setVisible(false);
tf.maketrans();
}
}
}
}
}[quote]
TransFrame.java
to use:
class someFrame extends TransFrame {
public someFrame() {
super(50, 50, 50);
try {
super.initComponents();
}
catch (Exception e) { /* Handle it */}
}
}
This software is free for non-commercial use, of course.
go ahead and edit it to suit your needs.
problems:
For large windows this can be quite slow!
blame the JVM 
James Neufeld
neufeld@cs.ualberta.ca[/quote]
Um abraço.
eu uso
mas so vai funcionar com java 6 update 10 em diante
Como é que se usa essa classe?
Eu fiz assim:
public class NewClass {
public static void main(String args[]){
JTransFrame frameTrans = new JTransFrame(15, 5, 4);
frameTrans.setSize(500, 500);
frameTrans.setLocationRelativeTo(null);
frameTrans.setVisible(true);
frameTrans.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}e apareceu uma tela cinza sem barra de titulo nem nada.
Eu fiz certo?