本文介绍了需要帮助计算java swing中拖放的x和y坐标的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
您好
请帮我解决拖放问题。如果我使用多个面板，我无法将组件从一个面板拖放到另一个面板。我想将组件拖动到面板中的指定位置，然后删除该组件能够在面板内拖动。但是相同的功能在LabelDrag_Designer.java中工作正常
（在此程序中使用Border布局添加北和中心面板，计算xy坐标精细）
LabelDrag_Designer.java - 为拖放操作完成的示例程序。
CardDesignerFrame1.java - 集成代码，计算x和坐标的问题。
点击新建菜单项，调用menuItemClick（String munuItemClicked）方法
并在mak_list（JLabel jlabel）和new_lab中拖放函数处理（JLabel co，int x，int y）方法。
谢谢&问候
Venkatram
Hi
Please help me to resolve the Problem in drag drop . I am not able to drop the component from one panel to other if i use multiple panels. I want to drag the component to specified location in panel,after dropped that component able to drag within panel.But same function working fine in LabelDrag_Designer.java
(In this program using Border layout added north and center panel,calculating x y coordinates fine)
LabelDrag_Designer.java - sample program done for the drag and drop.
CardDesignerFrame1.java - Integrated code, problem for calculating x and coordinates.
While clicking "New" menu item, calling the menuItemClick(String munuItemClicked) method
and drag and drop functions handling in mak_list(JLabel jlabel) and new_lab(JLabel co, int x, int y) methods.
Thanks & Regards
Venkatram
import java.awt.Color;
import javax.swing.UIManager;
import javax.swing.WindowConstants;
import com.secuera.ucms.common.utils.ImageUtils;
import com.secuera.ucms.common.utils.OSUtils;
public class CardDesignerMain {
static {
try {
// SystemPropertiesUtil.resolveSystemProperties();
if (OSUtils.isUnixOS()) {
UIManager.setLookAndFeel(UIManager
.getCrossPlatformLookAndFeelClassName());
} else {
UIManager.setLookAndFeel(UIManager
.getSystemLookAndFeelClassName());
}
// FontConstants.setFontUIDefaults();
} catch (Exception e) {
// TODO handle Runtime Exception
}
}
/**
* default constructor
*/
public CardDesignerMain() {
}
public static void main(String[] args) {
CardDesignerFrame1 frame = new CardDesignerFrame1();
frame.setTitle("SecuEra UCMS Card Layout Designer");
frame.setIconImage(ImageUtils.createImageIcon16X16(
ImageUtils.layout_center).getImage());
frame.setBackground(Color.white);
frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null); // Center window.
frame.setResizable(false);
frame.setVisible(true);
}
}
2）
2)
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Point;
import java.awt.dnd.DragSource;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.ArrayList;
import java.util.List;
import javax.swing.BorderFactory;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.border.MatteBorder;
import com.secuera.ucms.carddesigner.models.PalletComponent;
import com.secuera.ucms.common.utils.ImageUtils;
public class CardDesignerFrame1 extends JFrame {
protected Point anchorPoint;
private JMenuBar menuBar = null;
// JPanel toolBarPnl = new JPanel();
JPanel mainPanel = new JPanel(new BorderLayout());
JPanel cardPanel = new JPanel((new FlowLayout()));// added by venkatram
FrontCardPanel frontCardPnl = new FrontCardPanel();
BackCardPanel backCardPnl = new BackCardPanel();
JPanel palletPanel = new JPanel(new GridLayout(0, 1));
JPanel componentPanel = new JPanel();
JPanel propertiesPanle = new JPanel();
JPanel templatePanel = new JPanel();
Cursor dc = new Cursor(Cursor.DEFAULT_CURSOR);
Cursor yd = DragSource.DefaultMoveDrop;
// TODO get the standard size of te cards
public static int VERTICAL_CARD_WIDTH = 300;
public static int VERTICAL_CARD_HEIGHT = 400;
List<palletcomponent> componentList = new ArrayList<palletcomponent>();
public CardDesignerFrame1() {
generatePalletComponents();
createMenuBar();
// createContentBar();
mainPanel.setPreferredSize(new Dimension(1100, 600));
// JPanel palletPanel = new JPanel(new GridLayout(0, 1));
// JPanel componentPanel = new JPanel();
componentPanel.setPreferredSize(new Dimension(200, 200));
componentPanel.setBorder(BorderFactory
.createTitledBorder("Component Pallet"));
componentPanel.setLayout(new GridLayout(0, 3));
// JPanel propertiesPanle = new JPanel();
propertiesPanle.setBorder(BorderFactory
.createTitledBorder("Component Properties"));
for (PalletComponent comp : componentList) {
ImageIcon icon = ImageUtils
.createImageIcon(comp.getName() + ".png");
JLabel label1 = new JLabel(comp.getDisplayName(), icon,
JLabel.CENTER);
componentPanel.add(label1);
}
palletPanel.add(componentPanel);
palletPanel.add(propertiesPanle);
templatePanel.setBorder(BorderFactory.createTitledBorder("Tempaltes"));
templatePanel.setPreferredSize(new Dimension(200, 200));
mainPanel.add(palletPanel, BorderLayout.EAST);
mainPanel.add(templatePanel, BorderLayout.WEST);
mainPanel.add(cardPanel, BorderLayout.CENTER);
setJMenuBar(menuBar);
getContentPane().add(mainPanel);
}
private void createMenuBar() {
// Add a menu bar
menuBar = new JMenuBar();
JMenu fileMenu = new JMenu("File"); //$NON-NLS-1$
fileMenu.setMnemonic(KeyEvent.VK_F);
menuBar.add(fileMenu);
JMenuItem savePreferences_mi = new JMenuItem("Save", KeyEvent.VK_P); //$NON-NLS-1$
savePreferences_mi.setIcon((Icon) ImageUtils
.createImageIcon16X16(ImageUtils.save_edit));
savePreferences_mi.setToolTipText("Save Template"); //$NON-NLS-1$
JMenuItem createNew_mi = new JMenuItem("New Template", KeyEvent.VK_N);
createNew_mi.setIcon((Icon) ImageUtils
.createImageIcon16X16(ImageUtils.NEW));
createNew_mi.setToolTipText("Create New Template");
// ///////////added by venkatram for new template : starts////////////
createNew_mi.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
menuItemClick(evt.getActionCommand());
}
});
// //////////////////////added by venkatram for new template :
// end///////////////
JMenuItem openTemplate = new JMenuItem("Open Template", KeyEvent.VK_O);
openTemplate.setIcon((Icon) ImageUtils
.createImageIcon16X16(ImageUtils.FOLDER));
openTemplate.setToolTipText("Open Existing Template");
JMenuItem saveTemplateAs = new JMenuItem("Save As...", KeyEvent.VK_A);
saveTemplateAs.setIcon((Icon) ImageUtils
.createImageIcon16X16(ImageUtils.saveas_edit));
saveTemplateAs.setToolTipText("Save Template As");
JMenuItem close = new JMenuItem("Close Template", KeyEvent.VK_C);
close.setIcon(ImageUtils.createImageIcon16X16(ImageUtils.close));
close.setToolTipText("Close Template");
JMenuItem exit = new JMenuItem("Exit Editor", KeyEvent.VK_X);
exit.setIcon(ImageUtils.createImageIcon16X16(ImageUtils.exit));
exit.setToolTipText("Exit Editor");
fileMenu.add(createNew_mi);
fileMenu.add(openTemplate);
fileMenu.add(savePreferences_mi);
fileMenu.add(saveTemplateAs);
fileMenu.add(close);
fileMenu.add(exit);
JMenu editMenu = new JMenu("Edit"); //$NON-NLS-1$
menuBar.add(editMenu);
JMenu helpMenu = new JMenu("Help"); //$NON-NLS-1$
JMenuItem helpIndex = new JMenuItem("Help", KeyEvent.VK_H);
helpIndex.setIcon(ImageUtils.createImageIcon16X16(ImageUtils.help));
JMenuItem about = new JMenuItem("About", KeyEvent.VK_A);
about.setIcon(ImageUtils.createImageIcon16X16(ImageUtils.about));
helpMenu.add(helpIndex);
helpMenu.add(about);
menuBar.add(helpMenu);
}
// ////////Menu Item handlers new-- added by venkatram :
// starts///////////////////
private void menuItemClick(String munuItemClicked) {
System.out.println("new clicked-- " + munuItemClicked);
componentPanel.removeAll();
propertiesPanle.removeAll();
palletPanel.removeAll();
for (PalletComponent comp : componentList) {
ImageIcon icon = ImageUtils
.createImageIcon(comp.getName() + ".png");
JLabel label1 = new JLabel(comp.getDisplayName(), icon,
JLabel.CENTER);
componentPanel.add(label1);
if (label1.getText() != null
&& label1.getText().equalsIgnoreCase("Text Field")) {
System.out.println("in new cclick....text field");
mak_list_text(new JTextField(15));
} else
mak_list(label1);
}
palletPanel.add(componentPanel);
palletPanel.add(propertiesPanle);
frontCardPnl.setPreferredSize(new Dimension(VERTICAL_CARD_WIDTH,
VERTICAL_CARD_HEIGHT));
backCardPnl.setPreferredSize(new Dimension(VERTICAL_CARD_WIDTH,
VERTICAL_CARD_HEIGHT));
frontCardPnl.setBorder(BorderFactory.createTitledBorder("Card Front"));
backCardPnl.setBorder(BorderFactory.createTitledBorder("Card Back"));
// cardPanel.setPreferredSize(new Dimension(200,200));
cardPanel.setBorder(BorderFactory.createTitledBorder("Card Layout"));
cardPanel.add(frontCardPnl);
cardPanel.add(backCardPnl);
// mainPanel.add(cardPanel,BorderLayout.CENTER);
// getContentPane().add(mainPanel);
if (munuItemClicked != null && munuItemClicked.equalsIgnoreCase("Open")) {
System.out.println("....open template clicked.....");
}
}
// ///////////////////////////////added by venkatram
// :end///////////////////////////////////////////////
private void generatePalletComponents() {
if (componentList.size() == 0) {
// as of now panel is not a usable component
componentList.add(new PalletComponent(PalletComponent.PANEL_NAME,
PalletComponent.PANEL_DISPLAYNAME, null));
componentList.add(new PalletComponent(PalletComponent.FRAME_NAME,
PalletComponent.FRAME_DISPLAYNAME, null));
componentList.add(new PalletComponent(
PalletComponent.TEXTFIELD_NAME,
PalletComponent.TEXTFIELD_DISPLAYNAME, null));
componentList.add(new PalletComponent(PalletComponent.IMAGE_NAME,
PalletComponent.IMAGE_DISPLAYNAME, null));
componentList.add(new PalletComponent(PalletComponent.BARCODE_NAME,
PalletComponent.BARCODE_DISPLAYNAME, null));
componentList.add(new PalletComponent(PalletComponent.TAPE_NAME,
PalletComponent.TAPE_DISPLAYNAME, null));
componentList.add(new PalletComponent(
PalletComponent.RECTANGLE_NAME,
PalletComponent.RECTANGLE_DISPLAYNAME, null));
componentList.add(new PalletComponent(PalletComponent.LINE_NAME,
PalletComponent.LINE_DISPLAYNAME, null));
componentList.add(new PalletComponent(PalletComponent.CIRCLE_NAME,
PalletComponent.CIRCLE_DISPLAYNAME, null));
componentList.add(new PalletComponent(PalletComponent.CHIP_NAME,
PalletComponent.CHIP_DISPLAYNAME, null));
componentList.add(new PalletComponent(PalletComponent.LABEL_NAME,
PalletComponent.LABEL_DISPLAYNAME, null));
}
}
protected JButton makeNavigationButton(String imageName,
String actionCommand, String toolTipText, String altText) {
// Create and initialize the button.
JButton button = new JButton();
// button.setActionCommand(actionCommand);
button.setToolTipText(toolTipText);
// button.addActionListener(this);
button.setIcon(ImageUtils.createImageIcon16X16(imageName));
return button;
}
// ///////// added by venkatram for drag and drop : starts
// //////////////////////
private void mak_list(final JLabel l) {
System.out.println("mak_list>>> ");
l.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent m) {
setCursor(yd);
l.setBorder(new MatteBorder(1, 1, 1, 1, Color.black));
}
public void mouseReleased(MouseEvent m) {
l.setBorder(null);
setCursor(dc);
/*
* System.out.println("front card position...." +
* frontCardPnl.getX() + " --- " + frontCardPnl.getY());
* System.out.println("back card position...." +
* backCardPnl.getX() + " --- " + backCardPnl.getY());
* System.out.println("card panel position...." +
* cardPanel.getX() + " --- " + cardPanel.getY());
* System.out.println(" m.getx " + m.getX() + " m.getY " +
* m.getY()); System.out.println(" l.getx " + l.getX() +
* " l.getY " + l.getY());
*/
// int x = -(m.getX()l.getX()-frontCardPnl.getX());
// int y = m.getY()+l.getY()+frontCardPnl.getY();
// int x =
// -(m.getX()-l.getX()-(cardPanel.getX()+frontCardPnl.getX()));
// int x =
// (m.getX()+l.getX()+cardPanel.getWidth()+palletPanel.getWidth()+templatePanel.getWidth())-(frontCardPnl.getX()+cardPanel.getX());
// int x=410;
//anchorPoint = m.getPoint();
//int anchorX = anchorPoint.x;
//int anchorY = anchorPoint.y;
//Point parentOnScreen = componentPanel.getLocationOnScreen();
//Point mouseOnScreen = m.getLocationOnScreen();
//Point position = new Point(mouseOnScreen.x - parentOnScreen.x
// - anchorX, mouseOnScreen.y - parentOnScreen.y - anchorY);
int x = -(m.getX()) + l.getX();
int y = m.getY() + l.getY() - frontCardPnl.getY();
System.out.println("xxx " + x + "yyy " + y);
System.out.println("mak_lis Mouse mouseReleased" + "x " + x
+ "y " + y);
//if (y > 0 && x > 0 && y < frontCardPnl.getHeight()
// && x < frontCardPnl.getWidth()) {
frontCardPnl.add(new_lab(l, x, y));
frontCardPnl.repaint();
Component[] components1 = frontCardPnl.getComponents();
Component component = null;
System.out.println();
System.out.println("added no of components "
+ components1.length);
for (int i = 0; i < components1.length; i++) {
component = components1[i];
if (component instanceof JLabel) {
System.out.println("ram-- Label text..."
+ ((JLabel) component).getText()
+ "--coordinates-- X= "
+ ((JLabel) component).getX() + " Y= "
+ ((JLabel) component).getY());
}
}
}
//}
});
}
// for label
private Component new_lab(JLabel co, int x, int y) // function to draw label
// in new posn
{
JLabel label1 = null;
System.out.println("new_lab");
// label1 = new JLabel(co.getText());
System.out.println("co.getText() >>>>" + co.getText());
if (co.getText() != null) {
if (co.getText().equalsIgnoreCase("Panel")) {
ImageIcon icon = ImageUtils.createImageIcon(co.getText().trim()
+ ".png");
label1 = new JLabel(icon, JLabel.CENTER);
} else if (co.getText().equalsIgnoreCase("Frame")) {
ImageIcon icon = ImageUtils.createImageIcon(co.getText().trim()
+ ".png");
label1 = new JLabel(icon, JLabel.CENTER);
} else if (co.getText().equalsIgnoreCase("Image")) {
ImageIcon icon = ImageUtils.createImageIcon(co.getText().trim()
+ ".png");
label1 = new JLabel(icon, JLabel.CENTER);
} else if (co.getText().equalsIgnoreCase("BarCode")) {
ImageIcon icon = ImageUtils.createImageIcon(co.getText().trim()
+ ".png");
label1 = new JLabel(icon, JLabel.CENTER);
} else if (co.getText().equalsIgnoreCase("Maganatic Tape")) {
ImageIcon icon = ImageUtils.createImageIcon("tape.png");
label1 = new JLabel(icon, JLabel.CENTER);
} else if (co.getText().equalsIgnoreCase("Rectangle")) {
ImageIcon icon = ImageUtils.createImageIcon(co.getText().trim()
+ ".png");
label1 = new JLabel(icon, JLabel.CENTER);
} else if (co.getText().equalsIgnoreCase("Line")) {
ImageIcon icon = ImageUtils.createImageIcon(co.getText().trim()
+ ".png");
label1 = new JLabel(icon, JLabel.CENTER);
} else if (co.getText().equalsIgnoreCase("Circle")) {
ImageIcon icon = ImageUtils.createImageIcon(co.getText().trim()
+ ".png");
label1 = new JLabel(icon, JLabel.CENTER);
} else if (co.getText().equalsIgnoreCase("Chip")) {
ImageIcon icon = ImageUtils.createImageIcon(co.getText().trim()
+ ".png");
label1 = new JLabel(icon, JLabel.CENTER);
} else if (co.getText().equalsIgnoreCase("Label"))
label1 = new JLabel("Label");
}
final JLabel label = label1;
label.setOpaque(true);
label.setHorizontalAlignment(SwingConstants.CENTER);
label.setForeground(co.getForeground());
label.setBackground(co.getBackground());
label.setBounds(x, y, co.getWidth(), co.getHeight());
label.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent m) {
setCursor(yd);
label.setBorder(new MatteBorder(1, 1, 1, 1, Color.black));
if (m.getClickCount() == 2) {
final JTextField text = new JTextField();
text.setSize(100, 30);
label.add(text);
text.setVisible(true);
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
text.setVisible(false);
label.setText("" + text.getText() + "\n");
// label.setSize(text.getPreferredSize());
}
};
text.addActionListener(actionListener);
}
}
public void mouseReleased(MouseEvent m) {
label.setBorder(null);
setCursor(dc);
// int x = m.getX()+label.getX();
// int y = m.getY()+label.getY()-cardPanel.getY();
// int x =
// (m.getX()+label.getX()+cardPanel.getWidth()+palletPanel.getWidth()+templatePanel.getWidth())-(frontCardPnl.getX()+cardPanel.getX());
// int x = -(m.getX() + label.getX());
// int y = m.getY() + label.getY() - frontCardPnl.getY();
//anchorPoint = m.getPoint();
//int anchorX = anchorPoint.x;
//int anchorY = anchorPoint.y;
//Point parentOnScreen = componentPanel.getLocationOnScreen();
//Point mouseOnScreen = m.getLocationOnScreen();
//Point position = new Point(mouseOnScreen.x - parentOnScreen.x
// - anchorX, mouseOnScreen.y - parentOnScreen.y - anchorY);
int x = -(m.getX()) + label.getX();
int y = m.getY() + label.getY() - frontCardPnl.getY();
//int x = position.x;
//int y = position.y;
// frontCardPnl
//if (y > 0 && x > 0 && y < frontCardPnl.getHeight()
// && x < frontCardPnl.getWidth()) {
frontCardPnl.add(new_lab(label, x, y));
frontCardPnl.repaint();
//}
frontCardPnl.remove(label);
Component[] components1 = frontCardPnl.getComponents();
Component component = null;
System.out.println();
// System.out.println(" added no of components after dragged within panel -- "+components1.length);
for (int i = 0; i < components1.length; i++) {
component = components1[i];
if (component instanceof JLabel) {
// System.out.println("ram-- Label text..."+ ((JLabel)
// component).getText()+"--coordinates-- X= "+((JLabel)
// component).getX()+" Y= "+((JLabel)
// component).getY());
}
}
}
});
label.setSize(10, 30);
return (label);
}
// for text field
private void mak_list_text(final JTextField l) {
System.out.println("mak_list_text");
l.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent m) {
System.out.println(" <<<mousepressed>>> ");
setCursor(yd);
l.setBorder(new MatteBorder(1, 1, 1, 1, Color.black));
}
public void mouseReleased(MouseEvent m) {
// System.out.println(" <<<mousereleased>>> ");
// l.setBorder(null);
int x = -(m.getX() + l.getX());
int y = m.getY() + l.getY() - frontCardPnl.getY();
// if (y > 0 && x > 0 && y < frontCardPnl.getHeight() && x <<br mode="hold" /> // frontCardPnl.getWidth()){
frontCardPnl.add(new_labText(l, x, y));
frontCardPnl.repaint();
Component[] components1 = frontCardPnl.getComponents();
Component component = null;
System.out.println();
System.out.println("added no of components "
+ components1.length);
for (int i = 0; i < components1.length; i++) {
component = components1[i];
if (component instanceof JTextField) {
// System.out.println("ram-- Label text..."+ ((JLabel)
// component).getText()+"--coordinates-- X= "+((JLabel)
// component).getX()+" Y= "+((JLabel)
// component).getY());
}
}
}
// }
});
}
private Component new_labText(JTextField co, int x, int y) // function to
// draw label in
// new posn
{
final JTextField label = new JTextField();
// label.setOpaque(true);
// label.setHorizontalAlignment(SwingConstants.CENTER);
// label.setForeground(co.getForeground());
// label.setBackground(co.getBackground());
label.setBounds(x, y, co.getWidth(), co.getHeight());
label.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent m) {
setCursor(yd);
// label.setBorder(new MatteBorder(1,1,1,1,Color.black));
if (m.getClickCount() == 2) {
final JTextField text = new JTextField();
text.setSize(100, 30);
label.add(text);
text.setVisible(true);
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
text.setVisible(false);
label.setText("" + text.getText() + "\n");
label.setSize(text.getPreferredSize());
}
};
text.addActionListener(actionListener);
}
}
public void mouseReleased(MouseEvent m) {
label.setBorder(null);
setCursor(dc);
int x = -(m.getX() + label.getX());
int y = m.getY() + label.getY() - frontCardPnl.getY();
// frontCardPnl
// if (y > 0 && x > 0 && y < frontCardPnl.getHeight() && x <<br mode="hold" /> // frontCardPnl.getWidth()) {
frontCardPnl.add(new_labText(label, x, y));
frontCardPnl.repaint();
// }
frontCardPnl.remove(label);
Component[] components1 = frontCardPnl.getComponents();
Component component = null;
System.out.println();
System.out
.println(" added no of components after dragged within panel -- "
+ components1.length);
for (int i = 0; i < components1.length; i++) {
component = components1[i];
if (component instanceof JTextField) {
// System.out.println("ram-- Label text..."+ ((JLabel)
// component).getText()+"--coordinates-- X= "+((JLabel)
// component).getX()+" Y= "+((JLabel)
// component).getY());
}
}
}
});
label.setSize(20, 30);
return (label);
}
// ///////// added by venkatram for drag and drop : end
// //////////////////////
}
////////below working example///////////
package com.ucms.cardlayout;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.FlowLayout;
import java.awt.Point;
import java.awt.dnd.DragSource;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.ArrayList;
import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.border.MatteBorder;
public class LabelDrag_Designer extends JFrame
{
ArrayList al = new ArrayList();
JPanel tpan = new JPanel();
JPanel fpan = new JPanel();
CommonUtil util=new CommonUtil();
JLabel label1;
Cursor dc = new Cursor(Cursor.DEFAULT_CURSOR);
Cursor yd = DragSource.DefaultMoveDrop;
Point mp;
public LabelDrag_Designer()
{
super(" Drag And Drop ");
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent ev)
{
dispose();
System.exit(0);
}
});
setBounds(10,10,650,450);
//fpan.setPreferredSize(new Dimension(1,26));
fpan.setBorder(BorderFactory.createRaisedBevelBorder());
tpan.setLayout(null);
tpan.setBackground(Color.white);
getContentPane().setLayout(new BorderLayout(5,5));
getContentPane().add(fpan,BorderLayout.NORTH);
getContentPane().add(tpan,BorderLayout.CENTER);
add_comp(new JLabel(" Label1 "),null);
//add_comp(new JTextField(10));
//UCMSLabel labl = new UCMSLabel(util.createImageIcon("/images/controls/barcode.png","barcode"));
ImageIcon icon1 = new ImageIcon("/images/controls/barcode.png","barcode");
add_comp(new UCMSLabel(util.createImageIcon("/images/controls/barcode.png","barcode")),null);
add_comp(new UCMSLabel(util.createImageIcon("/images/controls/tape.png","tape")),null);
add_comp(new UCMSLabel(util.createImageIcon("/images/controls/chip.png","chip")),null);
add_compText(new JTextField(10),null);
// add_comp(new JLabel(" Label2 "),null);
setVisible(true);
}
private void add_comp(JLabel l, Color c){
// fpan.addSeparator();
l.setOpaque(true);
l.setHorizontalAlignment(SwingConstants.CENTER);
l.setForeground(Color.black);
l.setBackground(c);
fpan.add(l);
mak_list(l);
}
private void add_compText(JTextField l, Color c){
// fpan.addSeparator();
l.setOpaque(true);
l.setHorizontalAlignment(SwingConstants.CENTER);
l.setForeground(Color.black);
l.setBackground(c);
fpan.add(l);
mak_lisText(l);
//Component[] components = fpan.getComponents();
//for(int i=0;i<components.length;i++)>
//System.out.println("components iii"+ components[i]);
}
//for text field
private void add_comp(JTextField l, Color c){
// fpan.addSeparator();
l.setOpaque(true);
l.setHorizontalAlignment(SwingConstants.CENTER);
l.setForeground(Color.black);
l.setBackground(c);
fpan.add(l);
mak_lisText(l);
//Component[] components = fpan.getComponents();
//for(int i=0;i<components.length;i++)>
//System.out.println("components iii"+ components[i]);
}
private void mak_lisText(final JTextField l){
l.addMouseListener(new MouseAdapter(){
public void mousePressed(MouseEvent m) {
System.out.println(" <<<mousepressed>>> ");
setCursor(yd);
l.setBorder(new MatteBorder(1,1,1,1,Color.black));
}
public void mouseReleased(MouseEvent m){
System.out.println(" <<<mousereleased>>> ");
l.setBorder(null);
setCursor(dc);
int x = m.getX()+l.getX();
int y = m.getY()+l.getY()-tpan.getY();
if (y > 0 && x > 0 && y < tpan.getHeight() && x < tpan.getWidth()){
tpan.add(new_labText(l,x,y));
tpan.repaint();
Component[] components1= tpan.getComponents();
Component component = null;
System.out.println();
System.out.println("added no of components "+components1.length);
for(int i=0;i<components1.length;i++){>
component = components1[i] ;
if (component instanceof JLabel)
{
System.out.println("ram-- Label text..."+ ((JLabel) component).getText()+"--coordinates-- X= "+((JLabel) component).getX()+" Y= "+((JLabel) component).getY());
}
}
}
}
});
}
private void mak_list(final JLabel l){
System.out.println("mak_list... ");
l.addMouseListener(new MouseAdapter(){
public void mousePressed(MouseEvent m) {
setCursor(yd);
l.setBorder(new MatteBorder(1,1,1,1,Color.black));
}
public void mouseReleased(MouseEvent m){
l.setBorder(null);
setCursor(dc);
System.out.println("m.getX "+m.getX()+" m.gety "+m.getY());
System.out.println("l.getx "+l.getX()+" l.getY "+l.getY());
System.out.println("tpan.x "+tpan.getX()+" tpan.gety "+ tpan.getY());
int x = m.getX()+l.getX();
int y = m.getY()+l.getY()-tpan.getY();
if (y > 0 && x > 0 && y < tpan.getHeight() && x < tpan.getWidth()){
tpan.add(new_lab(l, x, y));
tpan.repaint();
Component[] components1= tpan.getComponents();
Component component = null;
System.out.println();
System.out.println("added no of components "+components1.length);
for(int i=0;i<components1.length;i++){>
component = components1[i] ;
if (component instanceof JLabel)
{
System.out.println("ram-- Label text..."+ ((JLabel) component).getText()+"--coordinates-- X= "+((JLabel) component).getX()+" Y= "+((JLabel) component).getY());
}
}
}
}
});
}
//for icon
private Component new_labelIcon(JLabel co, int x, int y) //function to draw label in new posn
{
System.out.println("new_labelIcon--"+co.getIcon().toString());
final JLabel label = new UCMSLabel(util.createImageIcon("/images/controls/barcode.png","barcode"));
label.setOpaque(true);
label.setHorizontalAlignment(SwingConstants.CENTER);
label.setForeground(co.getForeground());
label.setBackground(co.getBackground());
label.setBounds(x,y,co.getWidth(),co.getHeight());
if(co.getIcon().toString()!=null && !co.getIcon().toString().equalsIgnoreCase("chip"))
label.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent m){
setCursor(yd);
label.setBorder(new MatteBorder(1,1,1,1,Color.black));
if (m.getClickCount()==2){
final JTextField text=new JTextField();
text.setSize(100,30);
label.add(text);
text.setVisible(true);
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
text.setVisible(false);
label.setText(""+text.getText()+"\n");
label.setSize(text.getPreferredSize());
}
};
text.addActionListener(actionListener);
}
}
public void mouseReleased(MouseEvent m){
label.setBorder(null);
setCursor(dc);
int x = m.getX()+label.getX();
int y = m.getY()+label.getY()-tpan.getY();
if (y > 0 && x > 0 && y < tpan.getHeight() && x < tpan.getWidth()){
tpan.add(new_labelIcon(label,x,y));
tpan.repaint();
}
tpan.remove(label);
}
});
label.setSize(60,30);
return(label);
}
//for label
private Component new_lab(JLabel co, int x, int y) //function to draw label in new posn
{
System.out.println("new_lab.... ");
//JLabel label1 = new UCMSLabel(util.createImageIcon("/images/controls/barcode.png","barcode"));
//add_comp(new UCMSLabel(util.createImageIcon("/images/controls/barcode.png","barcode")),null);
//add_comp(new UCMSLabel(util.createImageIcon("/images/controls/tape.png","tape")),null);
// add_comp(new UCMSLabel(util.createImageIcon("/images/controls/chip.png","chip")),null);
//JLabel label1 = null;
if(co.getText() == null){
if(co.getIcon().toString().equalsIgnoreCase("barcode"))
label1 = new UCMSLabel(util.createImageIcon("/images/controls/barcode.png","barcode"));
else if(co.getIcon().toString().equalsIgnoreCase("tape"))
label1 = new UCMSLabel(util.createImageIcon("/images/controls/tape.png","tape"));
else if(co.getIcon().toString().equalsIgnoreCase("chip"))
label1 = new UCMSLabel(util.createImageIcon("/images/controls/chip.png","chip"));
}
else{
label1 = new JLabel(co.getText());
}
System.out.println("tpan... "+tpan.getY()+" .. "+tpan.getX());
final JLabel label = label1;
label.setOpaque(true);
label.setHorizontalAlignment(SwingConstants.CENTER);
label.setForeground(co.getForeground());
label.setBackground(co.getBackground());
label.setBounds(x,y,co.getWidth(),co.getHeight());
label.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent m){
setCursor(yd);
label.setBorder(new MatteBorder(1,1,1,1,Color.black));
if (m.getClickCount()==2){
final JTextField text=new JTextField();
text.setSize(100,30);
label.add(text);
text.setVisible(true);
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
text.setVisible(false);
label.setText(""+text.getText()+"\n");
label.setSize(text.getPreferredSize());
}
};
text.addActionListener(actionListener);
}
}
public void mouseReleased(MouseEvent m){
label.setBorder(null);
setCursor(dc);
System.out.println("tpan... "+tpan.getY()+" .. "+tpan.getX());
int x = m.getX()+label.getX();
int y = m.getY()+label.getY()-tpan.getY();
if (y > 0 && x > 0 && y < tpan.getHeight() && x < tpan.getWidth()){
tpan.add(new_lab(label,x,y));
tpan.repaint();
}
tpan.remove(label);
Component[] components1= tpan.getComponents();
Component component = null;
System.out.println();
System.out.println(" added no of components after dragged within panel -- "+components1.length);
for(int i=0;i<components1.length;i++){>
component = components1[i] ;
if (component instanceof JLabel)
{
System.out.println("ram-- Label text..."+ ((JLabel) component).getText()+"--coordinates-- X= "+((JLabel) component).getX()+" Y= "+((JLabel) component).getY());
}
}
}
});
label.setSize(60,30);
return(label);
}
//for text
private Component new_labText(JTextField co, int x, int y) //function to draw label in new posn
{
//JLabel label1 = new UCMSLabel(util.createImageIcon("/images/controls/barcode.png","barcode"));
//add_comp(new UCMSLabel(util.createImageIcon("/images/controls/barcode.png","barcode")),null);
//add_comp(new UCMSLabel(util.createImageIcon("/images/controls/tape.png","tape")),null);
// add_comp(new UCMSLabel(util.createImageIcon("/images/controls/chip.png","chip")),null);
//JLabel label1 = null;
final JTextField label= new JTextField();
label.setOpaque(true);
label.setHorizontalAlignment(SwingConstants.CENTER);
label.setForeground(co.getForeground());
label.setBackground(co.getBackground());
label.setBounds(x,y,co.getWidth(),co.getHeight());
label.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent m){
setCursor(yd);
label.setBorder(new MatteBorder(1,1,1,1,Color.black));
if (m.getClickCount()==2){
final JTextField text=new JTextField();
text.setSize(100,30);
label.add(text);
text.setVisible(true);
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
text.setVisible(false);
label.setText(""+text.getText()+"\n");
label.setSize(text.getPreferredSize());
}
};
text.addActionListener(actionListener);
}
}
public void mouseReleased(MouseEvent m){
label.setBorder(null);
setCursor(dc);
int x = m.getX()+label.getX();
int y = m.getY()+label.getY()-tpan.getY();
if (y > 0 && x > 0 && y < tpan.getHeight() && x < tpan.getWidth()){
tpan.add(new_labText(label,x,y));
tpan.repaint();
}
tpan.remove(label);
Component[] components1= tpan.getComponents();
Component component = null;
System.out.println();
System.out.println(" added no of components after dragged within panel -- "+components1.length);
for(int i=0;i<components1.length;i++){>
component = components1[i] ;
if (component instanceof JLabel)
{
System.out.println("ram-- Label text..."+ ((JLabel) component).getText()+"--coordinates-- X= "+((JLabel) component).getX()+" Y= "+((JLabel) component).getY());
}
}
}
});
label.setSize(60,30);
return(label);
}
public static void main (String[] args)
{
new LabelDrag_Designer();
}
}推荐答案
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