发布一篇java swing菜单例子 - 仓酷云

//:Menus.java
//Amenu-buildingsystem;alsodemonstrates
//iconsinlabelsandmenuitems.
packagec13.swing;
importjava.awt.*;
importjava.awt.event.*;
importjavax.swing.*;
publicclassMenusextendsJPanel{
staticfinalBoolean
bT=newBoolean(true),
bF=newBoolean(false);
//Dummyclasstocreatetypeidentifiers:
staticclassMType{MType(inti){}};
staticfinalMType
mi=newMType(1),//Normalmenuitem
cb=newMType(2),//Checkboxmenuitem
rb=newMType(3);//Radiobuttonmenuitem
JTextFieldt=newJTextField(10);
JLabell=newJLabel("IconSelected",
Faces.faces[0],JLabel.CENTER);
ActionListenera1=newActionListener(){
publicvoidactionPerformed(ActionEvente){
t.setText(
((JMenuItem)e.getSource()).getText());
}
};
ActionListenera2=newActionListener(){
publicvoidactionPerformed(ActionEvente){
JMenuItemmi=(JMenuItem)e.getSource();
l.setText(mi.getText());
l.setIcon(mi.getIcon());
}
};
//Storemenudataas"resources":
publicObject[][]fileMenu={
//Menunameandaccelerator:
{"File",newCharacter(F)},
//Nametypeaccellistenerenabled
{"New",mi,newCharacter(N),a1,bT},
{"Open",mi,newCharacter(O),a1,bT},
{"Save",mi,newCharacter(S),a1,bF},
{"SaveAs",mi,newCharacter(A),a1,bF},
{null},//Separator
{"Exit",mi,newCharacter(x),a1,bT},
};
publicObject[][]editMenu={
//Menuname:
{"Edit",newCharacter(E)},
//Nametypeaccellistenerenabled
{"Cut",mi,newCharacter(t),a1,bT},
{"Copy",mi,newCharacter(C),a1,bT},
{"Paste",mi,newCharacter(P),a1,bT},
{null},//Separator
{"SelectAll",mi,newCharacter(l),a1,bT},
};
publicObject[][]helpMenu={
//Menuname:
{"Help",newCharacter(H)},
//Nametypeaccellistenerenabled
{"Index",mi,newCharacter(I),a1,bT},
{"Usinghelp",mi,newCharacter(U),a1,bT},
{null},//Separator
{"About",mi,newCharacter(t),a1,bT},
};
publicObject[][]optionMenu={
//Menuname:
{"Options",newCharacter(O)},
//Nametypeaccellistenerenabled
{"Option1",cb,newCharacter(1),a1,bT},
{"Option2",cb,newCharacter(2),a1,bT},
};
publicObject[][]faceMenu={
//Menuname:
{"Faces",newCharacter(a)},
//Optinallastelementisicon
{"Face0",rb,newCharacter(0),a2,bT,
Faces.faces[0]},
{"Face1",rb,newCharacter(1),a2,bT,
Faces.faces[1]},
{"Face2",rb,newCharacter(2),a2,bT,
Faces.faces[2]},
{"Face3",rb,newCharacter(3),a2,bT,
Faces.faces[3]},
{"Face4",rb,newCharacter(4),a2,bT,
Faces.faces[4]},
};
publicObject[]menuBar={
fileMenu,editMenu,faceMenu,
optionMenu,helpMenu,
};
staticpublicJMenuBar
createMenuBar(Object[]menuBarData){
JMenuBarmenuBar=newJMenuBar();
for(inti=0;i<menuBarData.length;i++)
menuBar.add(
createMenu((Object[][])menuBarData[i]));
returnmenuBar;
}
staticButtonGroupbgroup;
staticpublicJMenu
createMenu(Object[][]menuData){
JMenumenu=newJMenu();
menu.setText((String)menuData[0][0]);
menu.setMnemonic(
((Character)menuData[0][1]).charValue());
//Createredundantly,incasethereare
//anyradiobuttons:
bgroup=newButtonGroup();
for(inti=1;i<menuData.length;i++){
if(menuData[i][0]==null)
menu.add(newJSeparator());
else
menu.add(createMenuItem(menuData[i]));
}
returnmenu;
}
staticpublicJMenuItem
createMenuItem(Object[]data){
JMenuItemm=null;
MTypetype=(MType)data[1];
if(type==mi)
m=newJMenuItem();
elseif(type==cb)
m=newJCheckBoxMenuItem();
elseif(type==rb){
m=newJRadioButtonMenuItem();
bgroup.add(m);
}
m.setText((String)data[0]);
m.setMnemonic(
((Character)data[2]).charValue());
m.addActionListener(
(ActionListener)data[3]);
m.setEnabled(
((Boolean)data[4]).booleanValue());
if(data.length==6)
m.setIcon((Icon)data[5]);
returnm;
}
Menus(){
setLayout(newBorderLayout());
add(createMenuBar(menuBar),
BorderLayout.NORTH);
JPanelp=newJPanel();
p.setLayout(newBorderLayout());
p.add(t,BorderLayout.NORTH);
p.add(l,BorderLayout.CENTER);
add(p,BorderLayout.CENTER);
}
publicstaticvoidmain(Stringargs[]){
Show.inFrame(newMenus(),300,200);
}
}///:~
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