KarlPichler
Mitglied
Hallo liebes Forum:
Wieder mal ne Frage:
Hab mir von "The Code Project" http://www.codeproject.com/KB/tabs/JTabbedPane.aspx
den code geholt und habe dazu eine Frage:
Hier folgt mal der code für die Tabbearbeitung:
Und hier der Aufruf:
So meine Frage: Wie kann ich nun auf das Jpanel mehrere Objekte hinlegen. Ich habe ja keinen Namen des Jpanels, und wenn ich nur die add() Mehtode aufrufe wirds ja nur auf den frame angezeigt! ... Ich hoffe ich drüce mich halbigs verstndlich aus!
Danke schon mal wieder an euch!
lg
Wieder mal ne Frage:
Hab mir von "The Code Project" http://www.codeproject.com/KB/tabs/JTabbedPane.aspx
den code geholt und habe dazu eine Frage:
Hier folgt mal der code für die Tabbearbeitung:
Code:
package test5;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import javax.swing.*;
public class TabControl extends JTabbedPane{
private TabCloseUI closeUI = new TabCloseUI(this);
public void paint(Graphics g){
super.paint(g);
closeUI.paint(g);
}
public void addTab(String title, Component component) {
super.addTab(title+" ", component);
}
public String getTabTitleAt(int index) {
return super.getTitleAt(index).trim();
}
private class TabCloseUI implements MouseListener, MouseMotionListener {
private TabControl tabbedPane;
private int closeX = 0 ,closeY = 0, meX = 0, meY = 0;
private int selectedTab;
private final int width = 8, height = 8;
private Rectangle rectangle = new Rectangle(0,0,width, height);
private TabCloseUI(){}
public TabCloseUI(TabControl pane) {
tabbedPane = pane;
tabbedPane.addMouseMotionListener(this);
tabbedPane.addMouseListener(this);
}
public void mouseEntered(MouseEvent me) {}
public void mouseExited(MouseEvent me) {}
public void mousePressed(MouseEvent me) {}
public void mouseClicked(MouseEvent me) {}
public void mouseDragged(MouseEvent me) {}
public void mouseReleased(MouseEvent me) {
if(closeUnderMouse(me.getX(), me.getY())){
boolean isToCloseTab = tabAboutToClose(selectedTab);
if (isToCloseTab && selectedTab > -1){
tabbedPane.removeTabAt(selectedTab);
}
selectedTab = tabbedPane.getSelectedIndex();
}
}
public void mouseMoved(MouseEvent me) {
meX = me.getX();
meY = me.getY();
if(mouseOverTab(meX, meY)){
controlCursor();
tabbedPane.repaint();
}
}
private void controlCursor() {
if(tabbedPane.getTabCount()>0)
if(closeUnderMouse(meX, meY)){
tabbedPane.setCursor(new Cursor(Cursor.HAND_CURSOR));
if(selectedTab > -1)
tabbedPane.setToolTipTextAt(selectedTab, "Close " +tabbedPane.getTitleAt(selectedTab));
}
else{
tabbedPane.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
if(selectedTab > -1)
tabbedPane.setToolTipTextAt(selectedTab,"");
}
}
private boolean closeUnderMouse(int x, int y) {
rectangle.x = closeX;
rectangle.y = closeY;
return rectangle.contains(x,y);
}
public void paint(Graphics g) {
int tabCount = tabbedPane.getTabCount();
for(int j = 0; j < tabCount; j++)
if(tabbedPane.getComponent(j).isShowing()){
int x = tabbedPane.getBoundsAt(j).x + tabbedPane.getBoundsAt(j).width -width-5;
int y = tabbedPane.getBoundsAt(j).y +5;
drawClose(g,x,y);
break;
}
if(mouseOverTab(meX, meY)){
drawClose(g,closeX,closeY);
}
}
private void drawClose(Graphics g, int x, int y) {
if(tabbedPane != null && tabbedPane.getTabCount() > 0){
Graphics2D g2 = (Graphics2D)g;
drawColored(g2, isUnderMouse(x,y)? Color.RED : Color.WHITE, x, y);
}
}
private void drawColored(Graphics2D g2, Color color, int x, int y) {
g2.setStroke(new BasicStroke(5,BasicStroke.JOIN_ROUND,BasicStroke.CAP_ROUND));
g2.setColor(Color.BLACK);
g2.drawLine(x, y, x + width, y + height);
g2.drawLine(x + width, y, x, y + height);
g2.setColor(color);
g2.setStroke(new BasicStroke(3, BasicStroke.JOIN_ROUND, BasicStroke.CAP_ROUND));
g2.drawLine(x, y, x + width, y + height);
g2.drawLine(x + width, y, x, y + height);
}
private boolean isUnderMouse(int x, int y) {
if(Math.abs(x-meX)<width && Math.abs(y-meY)<height )
return true;
return false;
}
private boolean mouseOverTab(int x, int y) {
int tabCount = tabbedPane.getTabCount();
for(int j = 0; j < tabCount; j++)
if(tabbedPane.getBoundsAt(j).contains(meX, meY)){
selectedTab = j;
closeX = tabbedPane.getBoundsAt(j).x + tabbedPane.getBoundsAt(j).width -width-5;
closeY = tabbedPane.getBoundsAt(j).y +5;
return true;
}
return false;
}
}
public boolean tabAboutToClose(int tabIndex) {
return true;
}
}Und hier der Aufruf:
Code:
package test5;
import java.awt.BorderLayout;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import test5.TabControl;
public class Test5 extends JFrame {
private Save tabbedPane;
public Test5() {
addTabbedPane();
addMenu();
setSize(500, 400);
setVisible(true);
setLocationRelativeTo(null);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
private void addMenu() {
// Create menu for adding tabs
JMenuBar menuBar = new JMenuBar();
JMenu menu = new JMenu("File");
JMenuItem menuItem = new JMenuItem("Add Tab");
menuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
tabbedPane.addTab("TAB " + (tabbedPane.getTabCount() + 1),
new JPanel(new BorderLayout())
//********************frage************************************************
//Hier sollen diverse object eingepflanzt werden.
);
JLabel l = new JLabel("This is NORTH", JLabel.CENTER);
add(l, BorderLayout.NORTH);
}
});
menu.add(menuItem);
menuBar.add(menu);
setJMenuBar(menuBar);
}
private void addTabbedPane() {
// Create ClosableTabbedPane and override the tabAboutToClose
// to be notified when certain tab is going to close.
tabbedPane = new TabControl() {
public boolean tabAboutToClose(int tabIndex) {
String tab = tabbedPane.getTabTitleAt(tabIndex);
int choice = JOptionPane.showConfirmDialog(null,
"You are about to close '" + tab
+ "'\nDo you want to proceed ?",
"Confirmation Dialog", JOptionPane.INFORMATION_MESSAGE);
return choice == 0; // if returned false tab closing will be
// canceled
}
};
getContentPane().add(tabbedPane);
}
public static void main(String[] args) {
new Test5();
}
}So meine Frage: Wie kann ich nun auf das Jpanel mehrere Objekte hinlegen. Ich habe ja keinen Namen des Jpanels, und wenn ich nur die add() Mehtode aufrufe wirds ja nur auf den frame angezeigt! ... Ich hoffe ich drüce mich halbigs verstndlich aus!
Danke schon mal wieder an euch!
lg
