Include Graphics2D in JComponent
Hi,
I have created a class extends JComponent.
how can i set the component graphics?
Help needed. Thanks
Hello,
a small example to illustrate how to drawImage
PS: You dont need the MediTracker for one image,
but if you load many images or you must know exactly when an images is loaded use it.class MainPanel extends JPanel
private Toolkit tool = Toolkit.getDefaultToolkit();
private MediaTracker media = new MediaTracker(this);
private Image background = tool.getImage(imagePathAsString);
MainPanel()
super();
media.addImage(background, 0);
try
{ //wait to calcute sizes correctly
media.waitForID(0);
}catch (InterruptedException e){}
public void paintComponent(Graphics g)
super.paintComponent(g);
g.drawImage(background, 0, 0, this);
public Dimension getPreferredSize()
return new Dimension(background.getWidth(this), background.getHeight(this));
}regards,
Tim
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import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
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import javax.swing.Scrollable;
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private String mapPixels;
private String mapAltura;
private String mapLargura;
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// TODO Auto-generated method stub
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import java.awt.event.ActionListener;
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import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.filechooser.FileNameExtensionFilter;
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import java.awt.Color;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
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import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.KeyStroke;
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private JMenu []menus = new JMenu[menuNames.length];
private String []arquivoMenuItemNames = {"Novo","Abrir", "Salvar","Salvar Como...","Sair" };
private KeyStroke []arquivoMenuItemHotkeys = {KeyStroke.getKeyStroke(KeyEvent.VK_N,ActionEvent.CTRL_MASK),
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private static MenuBar instance = null;
public JMenuItem lastAction;
private MenuBar()
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instance = new MenuBar();
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menus[0].add(arquivoMenuItens[i]);
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arquivoMenuItens[i].addActionListener(this);
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for(int i=0; i < editarMenuItemNames.length ; i++)
editarMenuItens[i] = new JMenuItem(editarMenuItemNames[i]);
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menus[1].add(editarMenuItens[i]);
editarMenuItens[i].setBackground(color);
editarMenuItens[i].addActionListener(this);
menuBar.setBackground(color);
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lastAction = (JMenuItem) e.getSource();
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action.newMap();
else if(lastAction.getText().equals("Abrir"))
action.openMap();
else if(lastAction.getText().equals("Salvar"))
action.save();
else if(lastAction.getText().equals("Salvar Como..."))
action.saveAs();
else if(lastAction.getText().equals("Sair"))
action.exit();
else if(lastAction.getText().equals("Copiar"))
action.copy();
else if(lastAction.getText().equals("Colar"))
action.paste();
package main;
import java.awt.geom.Rectangle2D;
import javax.swing.JComponent;
public class Cell extends JComponent{
public float presSub = 0;
public double errPressInfer = 0.02;
public double errPressSup = 0.02;
public float profundidade = 1;
public Rectangle2D r ;
public Cell(double x, double y, double pixel)
r = new Rectangle2D.Double(x,y,pixel,pixel);
Edited by: xnunes on May 3, 2008 6:26 AM -
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backbuffer = (BufferedImage) createImage (appWidth, appHeight);
Graphics2D g2 = backbuffer.createGraphics();
g2.setRenderingHint (RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2.drawImage (myImg, sliderX, sliderY, getWidth() / 2 * direction, getHeight() / 2, this);
g2.dispose();
repaint();
public void paintComponent (Graphics g)
super.paintComponent(g);
if (backbuffer == null)
displayGUI();
g.drawImage(backbuffer, 0, 0, this);
public void run ()
while(true)
sliderX = -(getWidth() - getWidth()/2);
sliderY = getHeight()/3;
int x = 0;
int increment = 1;
do
sliderX += increment;
if (sliderX % 30 == 0)
myImg = fetchImage(x);
direction = -1;
x++;
if (x == 4)
x = 0;
displayGUI();
} while (sliderX <= getWidth() + (getWidth() - getWidth()/2));
do
sliderX -= increment;
if (sliderX % 30 == 0)
myImg = fetchImage(x);
direction = 1;
x++;
if (x == 4)
x = 0;
displayGUI();
} while (sliderX >= -(getWidth() - getWidth()/2));
import java.awt.*;
import java.awt.image.BufferedImage;
import javax.swing.*;
public class Clock extends JComponent
BufferedImage backbuffer;
Image myImg = Toolkit.getDefaultToolkit().getImage("/home/climatewarrior/Sprites_gabriel/score_board.png");
public void paintComponent (Graphics g)
g.drawImage(myImg, 250, 100, getWidth()/2, getHeight()/3, null);
super.paintComponent (g);
repaint();
}Here's a file I had hanging around. It's about as simple as they come, hopefully not too simple!
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;
class SimpleAnimationPanel extends JPanel
private static final int DELAY = 20;
public static final int X_TRANSLATION = 2;
public static final int Y_TRANSLATION = 2;
private static final String DUKE_FILE = "http://java.sun.com/" +
"products/plugin/images/duke.wave.med.gif";
private Point point = new Point(5, 32);
private BufferedImage duke = null;
private Timer timer = new Timer(DELAY, new TimerAction());
public SimpleAnimationPanel()
try
// borrow an image from sun.com
duke = ImageIO.read(new URL(DUKE_FILE));
catch (MalformedURLException e)
e.printStackTrace();
catch (IOException e)
e.printStackTrace();
setPreferredSize(new Dimension(600, 400));
timer.start();
// do our drawing here in the paintComponent override
@Override
protected void paintComponent(Graphics g)
super.paintComponent(g);
if (duke != null)
g.drawImage(duke, point.x, point.y, this);
private class TimerAction implements ActionListener
public void actionPerformed(ActionEvent e)
int x = point.x;
int y = point.y;
Dimension size = SimpleAnimationPanel.this.getSize();
if (x > size.width)
x = 0;
else
x += X_TRANSLATION;
if (y > size.height)
y = 0;
else
y += Y_TRANSLATION;
point.setLocation(new Point(x, y)); // update the point
SimpleAnimationPanel.this.repaint();
private static void createAndShowUI()
JFrame frame = new JFrame("SimpleAnimationPanel");
frame.getContentPane().add(new SimpleAnimationPanel());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
public static void main(String[] args)
java.awt.EventQueue.invokeLater(new Runnable()
public void run()
createAndShowUI();
} -
Printing problem with Graphics2D
Hi, Ive got a problem with printing.
I have a JPanel and it has among other things a button to print the component which is an instance of the class its in. This is a drawing in Graphics2D. here is the following code that is meant to do the printing:-
if(e.getActionCommand().equals("print")){
System.out.println("print pressed " + title);
PrinterJob printJob = PrinterJob.getPrinterJob();
printJob.setPrintable(this);
if(printJob.printDialog()){
try { printJob.print(); }
catch (Exception PrinterExeption) { PrinterExeption.printStackTrace();}
public int print(Graphics g, PageFormat pf, int pi) throws PrinterException {
if (pi >= 1) {
System.out.println("print failed");
return Printable.NO_SUCH_PAGE;
Graphics2D g2 = (Graphics2D) g;
g2.translate(pf.getImageableX(), pf.getImageableY());
g2.setColor(Color.black);
this.paintAll(g2);
System.out.println("print successful");
return Printable.PAGE_EXISTS;
However it doesnt print and comes up with the following long message..
java.awt.image.ImagingOpException: Unable to transform src image
at java.awt.image.AffineTransformOp.filter(AffineTransformOp.java:263)
at sun.java2d.pipe.DrawImage.transformImage(DrawImage.java:304)
at sun.java2d.pipe.DrawImage.scaleBufferedImage(DrawImage.java:453)
at sun.java2d.pipe.DrawImage.scaleImage(DrawImage.java:531)
at sun.java2d.pipe.DrawImage.scaleImage(DrawImage.java:801)
at sun.java2d.pipe.ValidatePipe.scaleImage(ValidatePipe.java:171)
at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:2875)
at sun.print.PSPathGraphics.drawImageToPS(PSPathGraphics.java:998)
at sun.print.PSPathGraphics.drawImage(PSPathGraphics.java:495)
at sun.print.PSPathGraphics.drawImage(PSPathGraphics.java:406)
at sun.print.PSPathGraphics.drawImage(PSPathGraphics.java:345)
at sun.print.PSPathGraphics.drawImage(PSPathGraphics.java:288)
at sun.print.PSPathGraphics.drawImage(PSPathGraphics.java:197)
at javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4781)
at javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4724)
at javax.swing.JComponent.paint(JComponent.java:798)
at java.awt.Component.lightweightPaint(Component.java:2382)
at java.awt.Container.lightweightPaint(Container.java:1390)
at java.awt.GraphicsCallback$PeerPaintCallback.run(GraphicsCallback.java:67)
at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:60)
at java.awt.Component.paintAll(Component.java:2367)
at DrawingMethods.print(DrawingMethods.java:833)
at sun.print.RasterPrinterJob.printPage(RasterPrinterJob.java:1506)
at sun.print.RasterPrinterJob.print(RasterPrinterJob.java:1078)
at sun.print.RasterPrinterJob.print(RasterPrinterJob.java:979)
at DrawingMethods.actionPerformed(DrawingMethods.java:817)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1764)
at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1817)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:419)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:257)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:245)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:227)
at java.awt.Component.processMouseEvent(Component.java:5093)
at java.awt.Component.processEvent(Component.java:4890)
at java.awt.Container.processEvent(Container.java:1566)
at java.awt.Component.dispatchEventImpl(Component.java:3598)
at java.awt.Container.dispatchEventImpl(Container.java:1623)
at java.awt.Component.dispatchEvent(Component.java:3439)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3450)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3165)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3095)
at java.awt.Container.dispatchEventImpl(Container.java:1609)
at java.awt.Window.dispatchEventImpl(Window.java:1585)
at java.awt.Component.dispatchEvent(Component.java:3439)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:450)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:197)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)
I dont know how to get it to work and either does a PHD mate of mine.
Please help
All I need is a guarenteed way to get a Graphics2D component to print
cheers
pmiggyUm I dont know if im doing something daft but I tried this like you said
PrinterJob printJob = PrinterJob.getPrinterJob();
printJob.setPrintable(this);
if(printJob.printDialog()){
try {
PageFormat pageFormat = printJob.defaultPage();
if (pageFormat.getOrientation() == PageFormat.PORTRAIT) {
landscape = 0;} else {
landscape = 1;}
System.out.println("THE ORIENTATION IS "+ landscape);
printJob.print(); }
catch (Exception PrinterExeption) { PrinterExeption.printStackTrace();}
and it doesnt seem to work as I tried it both as landscape and portrait in the print dialog but landscape is always 0.
cheers
pmiggy -
JTable display cell previous/last selected/edited/clicked value/JComponent
I have a problem with the minesweeper I made,
The game board is a JTable containing custom gadgets in the cells,
The first game goes without problem, but I press the JButton starting a new game,
I randomly refill the JTable with new custom gadgets,
My problem is that the last cell I clicked in the JTable is still in the clicked state with the previous value and I cannot click or see the new custom gadget that ought to be there ...
The custom gadgets extends JLabel and use custom AbstractCellEditor and custom TableCellRenderer, but I think it is not related to my custom gadgets,
I work on OSX,
Any hint to my problem's origin?
Any solutions?My code included not related classes I eliminated to use only standard java classes,
here is is the minimal code for my mine sweeper reproducing the problem on the third launch
any hint? :
import java.awt.Container;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.MouseEvent;
import java.util.Random;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.event.TableModelListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
public class MyMineSweeper
private class JTableCellRenderer implements javax.swing.table.TableCellRenderer
private javax.swing.table.TableCellRenderer defaultRenderer;
public JTableCellRenderer(javax.swing.table.TableCellRenderer aRenderer)
defaultRenderer = aRenderer;
public java.awt.Component getTableCellRendererComponent(javax.swing.JTable aTable, Object anElement, boolean isSelected, boolean hasFocus, int aRow, int aColumn)
if(anElement instanceof javax.swing.JComponent)
return (javax.swing.JComponent)anElement;
return defaultRenderer.getTableCellRendererComponent(aTable, anElement, isSelected, hasFocus, aRow, aColumn);
private class JTableCellEditor extends javax.swing.AbstractCellEditor implements javax.swing.table.TableCellEditor
private javax.swing.JComponent component;
private int theClickCountToStart = 0;
public java.awt.Component getTableCellEditorComponent(javax.swing.JTable aTable, Object anElement, boolean isSelected, int aRow, int aColumn)
component = (javax.swing.JComponent) anElement;
return component;
public Object getCellEditorValue()
return component;
public boolean isCellEditable(java.util.EventObject anEvent)
if(anEvent instanceof java.awt.event.MouseEvent)
return ((java.awt.event.MouseEvent)anEvent).getClickCount() >= theClickCountToStart;
return true;
public int getClickCountToStart()
return theClickCountToStart;
public void setClickCountToStart(int aClickCountToStart)
theClickCountToStart = aClickCountToStart;
private class Tile extends javax.swing.JLabel
public class JTileMouseListener implements java.awt.event.MouseListener
public void mouseClicked(MouseEvent e)
if(isRevealed()==false)
reveal();
public void mousePressed(MouseEvent e)
public void mouseReleased(MouseEvent e)
public void mouseEntered(MouseEvent e)
public void mouseExited(MouseEvent e)
public void reveal(int aY, int anX)
Tile tile = ((Tile)theMapModel.getValueAt(aY, anX));
if(tile.isRevealed()==false)
tile.reveal();
public void changed()
if(theNeighbourCount==0)
if(theX>0)
if(theY>0)
reveal(theY-1, theX-1);
reveal(theY, theX-1);
if(theY<theMapModel.getRowCount()-1)
reveal(theY+1, theX-1);
if(theY>0)
reveal(theY-1, theX);
if(theY<theMapModel.getRowCount()-1)
reveal(theY+1, theX);
if(theX<theMapModel.getColumnCount()-1)
if(theY>0)
reveal(theY-1, theX+1);
reveal(theY, theX+1);
if(theY<theMapModel.getRowCount()-1)
reveal(theY+1, theX+1);
setBackground(java.awt.Color.WHITE);
else if(theNeighbourCount==9)
setText("*");
setBackground(java.awt.Color.RED);
System.out.println("no!");
theMap.setEnabled(false);
else
setText(String.valueOf(theNeighbourCount));
setBackground(java.awt.Color.WHITE);
setBorder(javax.swing.BorderFactory.createEmptyBorder());
if(isFinished()==true)
System.out.println("victory!");
theMap.setEnabled(false);
theMapModel.fireTableCellUpdated(theY,theX);
private DefaultTableModel theMapModel;
private int theX;
private int theY;
private short theNeighbourCount;
protected boolean revealed = false;
public Tile(int aYIndex, int anXIndex, short aNeighbourCount)
theMapModel = (DefaultTableModel)theMap.getModel();
theX = anXIndex;
theY = aYIndex;
theNeighbourCount = aNeighbourCount;
addMouseListener(new JTileMouseListener());
setOpaque(true);
setHorizontalAlignment(CENTER);
setBackground(java.awt.Color.LIGHT_GRAY);
setBorder(javax.swing.BorderFactory.createRaisedBevelBorder());
setSize(getHeight(), getHeight());
public void reveal()
revealed = true;
theRevealedTileCount +=1;
changed();
public boolean isRevealed()
return revealed;
private JFrame theFrame;
private JTable theMap;
private int theMapSize = 10;
private int theTrapCount = 5;
private int theRevealedTileCount = 0;
private void startGame()
Point[] traps = new Point[theTrapCount];
Random generator = new Random();
for(int trapIndex = 0; trapIndex<theTrapCount; trapIndex+=1)
Point newPoint = null;
boolean alreadyTrapped = true;
while(alreadyTrapped==true)
newPoint = new Point(generator.nextInt(theMapSize-1), generator.nextInt(theMapSize-1));
alreadyTrapped = false;
for(int existingTrapIndex= 0; existingTrapIndex<trapIndex;existingTrapIndex++)
if(newPoint.equals(traps[existingTrapIndex])) alreadyTrapped = true;
traps[trapIndex] = newPoint;
TableModel mapModel = theMap.getModel();
for(int yIndex = 0; yIndex<theMapSize; yIndex+=1)
for(int xIndex = 0; xIndex<theMapSize; xIndex+=1)
short neighbours = 0;
int x = 0;
int y = 0;
for(int trapIndex = 0; trapIndex<theTrapCount; trapIndex+=1)
x = traps[trapIndex].x - xIndex;
y = traps[trapIndex].y - yIndex;
if(x==0 && y==0)
trapIndex = theTrapCount;
else if((x==1 || x==-1) && (y==1 || y==-1))
neighbours += 1;
else if((x==0) && (y==1 || y==-1))
neighbours += 1;
else if((x==1 || x==-1) && (y==0))
neighbours += 1;
if(x==0 && y==0)
mapModel.setValueAt(new Tile(yIndex, xIndex, (short) 9), yIndex, xIndex);
else
mapModel.setValueAt(new Tile(yIndex, xIndex, neighbours), yIndex, xIndex);
theRevealedTileCount = 0;
theMap.setEnabled(true);
private boolean isFinished()
return ((theMapSize*theMapSize)-theRevealedTileCount)==theTrapCount;
public MyMineSweeper()
theFrame = new javax.swing.JFrame("mine sweeper");
JPanel cp = new JPanel();
theMap = new JTable(new DefaultTableModel(10,10)
public Class getColumnClass(int column)
return getValueAt(0, column).getClass();
theMap.setDefaultRenderer(JComponent.class, new JTableCellRenderer(theMap.getDefaultRenderer(JComponent.class)));
JTableCellEditor editor = new JTableCellEditor();
theMap.setDefaultEditor(JComponent.class, editor);
editor.setClickCountToStart(0);
theMap.putClientProperty("terminateEditOnFocusLost", Boolean.TRUE);
startGame();
cp.add(theMap);
Action newGameAction = new AbstractAction("new game")
public void actionPerformed(ActionEvent e)
startGame();
JButton newGameTrigger = new JButton(newGameAction);
cp.add(newGameTrigger);
theFrame.getContentPane().add(cp);
theFrame.pack();
theFrame.show();
public JFrame getFrame()
return theFrame;
} -
How painting behind a JComponent ?
Hi all,
I'm trying to paint stuff like shadows, frames (not borders), etc. behind JComponents.
So every shape only intersects with the relative JComponent's one.
Cannot paint these stuff in the container's paintComponent() method since more widgets can have one or more of them, so I guess It should be better do the job in every child's paintComponent() method.
What follows was the code I tested but doesn't work.
Any hints ? Thanks in advance.
Lucio
import java.awt.*;
import javax.swing.*;
public class UpButton extends JButton {
Dimension dimension = new Dimension(100, 100);
Point point = new Point(100, 100);
public UpButton(String text) {
setSize(dimension);
setLocation(point);
setBackground(new Color(255,186,26));
setText(text);
public void paintComponent(Graphics g) {
Component c = (Component) getParent();
Graphics2D g2 = (Graphics2D)
c.getGraphics().create(0,0,dimension.width,dimension.height);
g2.translate(-(point.x + 10), -(point.y + 5));
g2.setPaint(Color.gray);
g2.fill(new Rectangle(dimension));
g2.dispose();
super.paintComponent(g);
public static void main(String[] args) {
JFrame jFrame = new JFrame();
jFrame.getContentPane().setLayout(null);
jFrame.add(new UpButton("Test"));
jFrame.setSize(300,300);
jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jFrame.setVisible(true);
}I'm very grateful to you, weebib
I was missing the setClip method, now perfectly works.
It doesn't seems to me too difficult (now ;-)
Here my modified version :
import java.awt.*;
import javax.swing.*;
public class UpButton extends JButton {
Dimension dimension = new Dimension(100, 100);
Point point = new Point(100, 100);
public UpButton(String text) {
setSize(dimension);
setLocation(point);
setBackground(new Color(255,186,26));
setText(text);
public void paintComponent(Graphics g) {
Graphics2D g2 = (Graphics2D) g.create();
g2.translate(10, 5);
g2.setClip(0, 0, 100, 100);
g2.setPaint(Color.gray);
g2.fill(new Rectangle(dimension));
g2.dispose();
super.paintComponent(g);
public static void main(String[] args) {
JFrame jFrame = new JFrame();
jFrame.getContentPane().setLayout(null);
jFrame.add(new UpButton("Test"));
jFrame.setSize(300,300);
jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jFrame.setVisible(true);
} -
Flush parameter of jsp:include has no effect on servlet code
I am running 9.0.3 and my jsp code looks like:
<jsp:include page =".." flush="false"/>
but the resulting servlet code is:
pageContext.include( __url);
Which defaults to flushing the buffer!
Does anyone know a work around or if Oracle is going to fix this?
Thanks,
MikeTry:
public class ... extends ...
private static final boolean antialias = Boolean.getBoolean ("swing.aatext");
private static Map hintsMap = null;
@SuppressWarnings("unchecked")
static final Map getHints() {
if (hintsMap == null) {
hintsMap = (Map)(Toolkit.getDefaultToolkit().getDesktopProperty("awt.font.desktophints")); //NOI18N
if (hintsMap == null) {
hintsMap = new HashMap();
if (antialias) {
hintsMap.put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
return hintsMap;
... later in class ...
@Override
protected void paintComponent(Graphics g) {
Graphics2D g2d = (Graphics2D) g;
g2d.addRenderingHints(getHints());
super.paintComponent(g);
...needed this so custom paint would use AA. In my app I wrote text in my component and it was not AA, this turned it on.
I don't think I had the same problem you, as my jlabels were always aa.
Edited by: 805835 on Oct 27, 2010 5:06 PM
Edited by: 805835 on Oct 27, 2010 5:07 PM -
Inserting any JComponent in a JEditorPane
Hi, I'm having some trouble using JEditorPane and JTextPane. I would like to include some JComponent of my own into them.
With JTextPane, no problem, let's create a style with
StyleConstants.setComponent(myStyle, myComponent);
then insert a space char in the Document using this style. Good.
Problem comes when I want to insert my components into an HTML document, using JEditorPane. This method raises no runtime problem but does nothing visible. Why ? Even more surprising, if I force the JEditorPane to a simple DefaultStyledDocument
JEditorPane editorPane = new JTextPane();
editorPane.setDocument(new DefaultStyledDocument());
it doesn't work better. In such a case, ain't we in exactly the same configuration than with JTextPane ? BTW, why is JTextPane derived from JEditorPane if we cannot retreive parent's behaviour (HTML or RTF rendering) in the child class ?
Yes, I'm confused...
If your mind is clearer than mine on those topic, could you give me a piece of advice, or a link to a solution or an exemple on all of this ? Thanks,
MatthieuNo idea anybody on how I could insert JComponents of my own in a JEditorPane ?
Why the simple Document.insertString () don't work in a JEditorPane if the style is not HTML ?
Is it possible to tweak JTextPane to make it render HTML (using a Kit) then insert my own styles in it ?
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Problem change Graphics2D into jpg
this is part of the code i have
private void drawPawn(Graphics2D gr, Integer pawn, Color c) {
Coordinate coord = parent.getGameCore().currentBoard().getCoordinate(
pawn);
int y = coord.getLine();
int x = coord.getRow();
// Image Image1; <-------------------------this is first try
// Toolkit toolkit = Toolkit.getDefaultToolkit();
// Image1 = toolkit.getImage("kangaroo.jpg");
// BufferedImage Image1 = null ; <--------------------------this is second try
// try {
// Image1 = ImageIO.read(new File("kangaroo.jpg"));
// } catch (IOException e) {
ImageIcon Image1 = new ImageIcon("kangaroo.jpg"); <--------------------------and last try but it doesnt work(cant view the jpg)
gr.setColor(borderPawnsColor);
gr.fillOval(horizontalBorder + x * slotWidth, verticalBorder + y
* slotHeight, pawnDiameter + pawnBorderSize, pawnDiameter
+ pawnBorderSize);
gr.setColor(c);
gr.fillOval(horizontalBorder + x * slotWidth, verticalBorder + y
* slotHeight, pawnDiameter, pawnDiameter);
gr.drawImage(Image1.getImage(), horizontalBorder + x * slotWidth, verticalBorder + y
* slotHeight, this); <--------------------------this is where the problem place
ive try different ways to view "kangaroo.jpg".but it doesnt work.anyone could help me?
i get this code from googling.forent wrote:
sorry..when i change the root into "E:/My Documents/NetBeansProjects/Bordeaux/src/gui/kangaroo.jpg".but why this happen?
it solve my problem.
yeah it called from paintcomponent().
thanks.. :-DThat is not the root of your project, it is a direct path to your JPG. IT happened bacause your code was correct, but your JPG is in the wrong place. Your project is in "E:/MY Documents/NetBeansProjects/Bordeaux", put your JPG in there and you can access it then by just the name "kangaroo.jpg", but if you JAR your file, then you'll have to loadresource and include the JPG in your JAR to get it to work that way. In any case a direct path to your JPG will work, but you lose the ability to move your JAR freely from machine to machine as a self contained unit able to run on any appropriate JVM--you will always be requred to have that hard path "E:/My Documents/NetBeansProjects/Bordeaux/src/gui/kangaroo.jpg" to your JPG and if your friends don't have an E drive, they are just out of luck.
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