毕业设计之文本编辑器

//毕业设计之文本编辑器

package cn.hncu.gui6;

import java.awt.BorderLayout;
import java.awt.CheckboxMenuItem;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsEnvironment;
import java.awt.HeadlessException;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;


import javax.print.DocFlavor.INPUT_STREAM;
import javax.swing.ButtonGroup;
import javax.swing.GroupLayout.Group;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPopupMenu;
import javax.swing.JRadioButton;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JToolBar;
import javax.swing.KeyStroke;
import javax.swing.plaf.basic.BasicComboBoxUI.ComboBoxLayoutManager;


public class EditorJFrame extends JFrame implements ActionListener, MouseListener {
private JTextArea text;// 文本内容
private JComboBox comboxName, comboxSize;// 字体名称，字体大小
private JCheckBox chkBold, chkItalic;// 粗体，斜体
private JRadioButton radioColor[]; // 颜色单选按钮数组
private String colorStr[]={"黑","红","绿","蓝"};
private JButton btncolor;
private JCheckBoxMenuItem[] chkMenuItems;
private Font font=null;
private JRadioButtonMenuItem[] radiobtnColor;
JPopupMenu popMenu;
public EditorJFrame()  {
super("文本编辑器");
Dimension dim=getToolkit().getScreenSize();
this.setBounds(dim.width/4, dim.height/4, dim.width/2, dim.height/2);
text=new JTextArea("Welcome 欢迎");
this.getContentPane().add(new JScrollPane(text));
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
JToolBar toolbar=new JToolBar();//工具栏
this.getContentPane().add(toolbar,BorderLayout.NORTH);

GraphicsEnvironment ge=GraphicsEnvironment.getLocalGraphicsEnvironment();//添加本地的字体
String[] fontsName=ge.getAvailableFontFamilyNames();
comboxName=new JComboBox(fontsName);
comboxName.addActionListener(this);//事件监听1
toolbar.add(comboxName);
String sizeStr[]={"20", "30", "40", "50", "60", "70","80"};
comboxSize=new JComboBox(sizeStr);
comboxSize.addActionListener(this);//事件监听2
comboxSize.setEditable(true);
toolbar.add(comboxSize);
//Icon ic=new ImageIcon("F:\\myEclipse\\qq.jpg");
//chkBold=new JCheckBox("粗体",ic);
chkBold=new JCheckBox("粗体");
chkBold.setActionCommand("bold");
chkBold.addActionListener(this);//事件监听3
toolbar.add(chkBold);
chkItalic = new JCheckBox("斜体");
chkItalic.setActionCommand("italic");
chkItalic.addActionListener(this);//事件监听4
toolbar.add(chkItalic);
ButtonGroup group=new ButtonGroup();

radioColor=new JRadioButton[colorStr.length];
for(int i=0;i<colorStr.length;i++){
radioColor[i]=new JRadioButton(colorStr[i]);
group.add(radioColor[i]);
toolbar.add(radioColor[i]);
radioColor[i].setActionCommand(colorStr[i]);
radioColor[i].addActionListener(this);//事件监听
}
radioColor[0].setSelected(true);
//设置菜单栏
addMyMenu();
//右击快捷菜单2 
popMenu=new JPopupMenu();
String menuitemsStr[]={"复制","剪切","粘贴"};
JMenuItem menupopitem[]=new JMenuItem[menuitemsStr.length];
for(int i=0;i<menuitemsStr.length;i++){
menupopitem[i]=new JMenuItem(menuitemsStr[i]);
popMenu.add(menupopitem[i]);
menupopitem[i].addActionListener(this);
}
text.add(popMenu);
text.addMouseListener(this);
//快捷菜单7 ----为菜单项设置快捷键
menupopitem[0].setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C, InputEvent.CTRL_MASK));
menupopitem[1].setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X, InputEvent.CTRL_MASK));
menupopitem[2].setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V, InputEvent.CTRL_MASK));
this.setVisible(true);
}


private void addMyMenu() {
//菜单栏
JMenuBar menubar=new JMenuBar();
this.setJMenuBar(menubar);
String menuStr[]={"文件", "编辑", "帮助"};
JMenu menu[]=new JMenu[menuStr.length];
for(int i=0;i<menuStr.length;i++){
menu[i]=new JMenu(menuStr[i]);
menubar.add(menu[i]);
}

//菜单1
JMenuItem menuFileOpen=new JMenuItem("打开");
menu[0].add(menuFileOpen);
menu[0].addSeparator();
JMenuItem menuFileSave=new JMenuItem("保存");
menu[0].add(menuFileSave);
menu[0].addSeparator();
JMenuItem menuFileClose=new JMenuItem("关闭");
menuFileClose.addActionListener(this);//事件监听
menuFileClose.setActionCommand("close");
menu[0].add(menuFileClose);
menuFileClose.setAccelerator(KeyStroke.getKeyStroke( KeyEvent.VK_F4,InputEvent.CTRL_MASK));
//menuFileClose.setAccelerator(KeyStroke.getKeyStroke('T'));
//菜单2：编辑
JMenu menuStyle=new JMenu("字形");
menu[1].add(menuStyle);
String styleStr[] = {"粗体","斜体"};
chkMenuItems=new JCheckBoxMenuItem[styleStr.length];
for(int i=0;i<styleStr.length;i++){
chkMenuItems[i]=new JCheckBoxMenuItem(styleStr[i]);
menuStyle.add(chkMenuItems[i]);
}
chkMenuItems[0].setActionCommand("bold");
chkMenuItems[0].addActionListener(this);
chkMenuItems[1].setActionCommand("italic");
chkMenuItems[1].addActionListener(this);
JMenu menuColor=new JMenu("颜色");
menu[1].add(menuColor);
radiobtnColor =new JRadioButtonMenuItem[colorStr.length];
ButtonGroup group=new ButtonGroup();
for(int i=0;i<colorStr.length;i++){
radiobtnColor[i]=new JRadioButtonMenuItem(colorStr[i]);
group.add(radiobtnColor[i]);
menuColor.add(radiobtnColor[i]);
radiobtnColor[i].setActionCommand(colorStr[i]);
radiobtnColor[i].addActionListener(this);
}
radiobtnColor[0].setSelected(true);







}
private boolean boo=false,state1,state2;
String str="";
public void actionPerformed(ActionEvent e) {
if(boo&&e.getSource()==comboxSize){
boo=false;
return;
}
if(e.getSource() instanceof JComboBox ||
   e.getSource() instanceof JCheckBox ){
String fontName = (String) comboxName.getSelectedItem();
int fontSize=0;
String strSize=(String)comboxSize.getSelectedItem();
try {
fontSize=Integer.parseInt(strSize);
} catch (NumberFormatException e1) {
String message="\""+strSize+"不能换成整数";
JOptionPane.showMessageDialog(this, message);
if(!strSize.equals(str)){
str=strSize;
boo=true;

}
return;

}

int style=changeStyle(e);
font=text.getFont();
/*int style = font.getStyle();
 if(chkBold.isSelected()){
style=Font.BOLD;
state1=true;
chkMenuItems[0].setSelected(state1);
}else{
state1=false;
chkMenuItems[0].setSelected(state1);
}
if(chkItalic.isSelected()){
style=font.ITALIC;
System.out.println("dasd");
}else{
style=style^2;
}*/
font =new Font(fontName, style, fontSize);
text.setFont(font);
}
if (e.getSource() instanceof JMenuItem ||e.getSource() instanceof JRadioButton){
Color c=setcolor(e);
text.setForeground(c);
if(e.getActionCommand().equalsIgnoreCase("bold") ||
   e.getActionCommand().equalsIgnoreCase("italic") ){
int style = changeStyle(e); //调用所抽取的方法
font = new Font(text.getFont().getName(), style, text.getFont().getSize());
text.setFont(font);
}
if(e.getActionCommand().equalsIgnoreCase("close")){
int i=JOptionPane.showConfirmDialog(this,"真的要退出吗？");
if(i==JOptionPane.NO_OPTION){
System.out.println("s ");
System.exit(0);
}
if(i==JOptionPane.CANCEL_OPTION){
return;
}
if(i==JOptionPane.OK_OPTION){
System.exit(0);
}
}
//快捷菜单6  ----菜单项的响应动作
if(e.getActionCommand().equals("剪切")){
text.cut();
}
if(e.getActionCommand().equals("复制")){
text.copy();
}
if(e.getActionCommand().equals("粘贴")){
text.paste();
}
}
if (e.getSource()==comboxSize){
String strSize = (String) comboxSize.getSelectedItem();
int size = Integer.parseInt(strSize);
int i = 0, n = comboxSize.getItemCount();
while(i<n){
int iSize=Integer.parseInt((String)comboxSize.getItemAt(i));
if(size>iSize){
i++;
}else if(size==iSize){
return;
}else{
break;
}
}
comboxSize.insertItemAt(strSize, i);


}


/*if(chkMenuItems[0].isSelected()){
int fontSize=0;
String strSize=(String)comboxSize.getSelectedItem();
fontSize=Integer.parseInt(strSize);
text.setFont(new Font(text.getName(),Font.BOLD,fontSize));
System.out.println(fontSize);
state1=true;
chkBold.setSelected(state1);
}else{
int fontSize=0;
String strSize=(String)comboxSize.getSelectedItem();
fontSize=Integer.parseInt(strSize);
text.setFont(new Font(text.getName(),Font.PLAIN,fontSize));
state1=false;
chkBold.setSelected(state1);
}*/



}


private Color setcolor(ActionEvent e) {
Color color=null;
if(e.getActionCommand().equalsIgnoreCase("黑")){
color=Color.black;
}
if(e.getActionCommand().equalsIgnoreCase("红")){
color=Color.red;
}
if(e.getActionCommand().equalsIgnoreCase("绿")){
color=new Color(0, 255, 0);
}
if(e.getActionCommand().equalsIgnoreCase("蓝")){
color=new Color(0,0,255);
}
// if (e.getSource() == radioColor[0]) {
// color = new Color(0, 0, 0);
// }
// if (e.getSource() == radioColor[1]) {
// color = new Color(255, 0, 0);
// }
// if (e.getSource() == radioColor[2]) {
// color = new Color(0, 255, 0);
// }
// if (e.getSource() == radioColor[3]) {
// color = new Color(0, 0, 255);
// }
common2(e);
return color;
}


private void common2(ActionEvent e) {
if(e.getSource() instanceof JRadioButton||e.getSource() instanceof JRadioButtonMenuItem){
for(int i=0;i<radioColor.length;i++){
   if(e.getActionCommand().equalsIgnoreCase(colorStr[i])){
    radioColor[i].setSelected(true);
    radiobtnColor[i].setSelected(true);
   }
}
}
// for(int i=0;i<radioColor.length;i++){
//   if(radioColor[i].isSelected()){
//  radiobtnColor[i].setSelected(true);
//   }else if(!radioColor[i].isSelected()){
//   radiobtnColor[i].setSelected(false);
//   }else if(radiobtnColor[i].isSelected()){
//   radioColor[i].setSelected(true);
//   }else if(!radiobtnColor[i].isSelected()){
//   radioColor[i].setSelected(false);
//   }
// }



}


private int changeStyle(ActionEvent e) {
int style=text.getFont().getStyle();
if(e.getActionCommand().equalsIgnoreCase("bold")){
style^=1;
}
        if(e.getActionCommand().equalsIgnoreCase("italic")){
        style^=2;
}
        common(style);
return style;
}


private void common(int style) {
state1 = ( (style & 1) ==1 );  // 1 0  ** 00
state2 = ( (style & 2) ==2 ); // 2 0
chkMenuItems[0].setSelected(state1);
chkBold.setSelected(state1);
chkMenuItems[1].setSelected(state2);
chkItalic.setSelected(state2);
// //点击图标按钮时，用按钮的状态去 同步 菜单项
// chkMenuItems[0].setSelected( chkBold.isSelected() );
// //点击菜单项时，用菜单项状态去 同步 按钮的状态
// chkBold.setSelected( chkMenuItems[0].isSelected() );
}


       


@Override
public void mouseClicked(MouseEvent e) {
if(e.getModifiers()==MouseEvent.BUTTON3_MASK){
popMenu.show(text, e.getX(), e.getY());
}

}


@Override
public void mousePressed(MouseEvent e) {
// TODO Auto-generated method stub

}


@Override
public void mouseReleased(MouseEvent e) {
// TODO Auto-generated method stub

}


@Override
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub

}


@Override
public void mouseExited(MouseEvent e) {
// TODO Auto-generated method stub

}
public static void main(String[] args) {
new EditorJFrame();


}



}