[591] in java-interest
Re: Invisible winodws
daemon@ATHENA.MIT.EDU (Francois BOUSSARD)
Wed Jul 5 13:28:29 1995
Date: Wed, 05 Jul 95 12:21:20 0200
From: Francois BOUSSARD <francois@coplanet.fr>
To: java-interest@java.Eng.Sun.COM
This is a multi-part message in MIME format.
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> Okay,
> By uing the Hotjava sourvce as a guide Iw as able to write code that
> creates and strats a WServer, creates a frame and then creates a
> window in the frame and it all runs without error .
>
> Problem is, I don't see ANYTHING. I've tried using map. It still
> displays ntohing. I've tried drawString, THEN map, and still
> nothing.
>
> Help???
>
> JK
Well, I'm working on windowing tools on java and I've begun to write this
code. It's creating new classes for window, frame, menu. And it's work for the
moment (it's just a draft). I hope it will be usefull for you.
--
__________________________________________________________________________
Francois BOUSSARD
Coplanet : Tel : 44.64.87.60
162 Bd Davout. 75020 PARIS
FRANCE fb@coplanet.fr
__________________________________________________________________________
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/*
import awt.Graphics;
import awt.Frame;
import awt.WServer;
import awt.Window;
import awt.Color;
import awt.MenuBar, awt.Menu, awt.MenuItem;
*/
import awt.*;
interface CallbackAble {
public int Callback(String msg,Object p);
}
class MyMenuDefaultCallback
implements CallbackAble {
public int Callback(String msg,Object p) {
return(0);
}
}
class DesMenu
implements CallbackAble {
static protected MyMenuDefaultCallback DummyCallback;
String Txt;
boolean Toggled;
boolean Enabled;
boolean IsTitle;
CallbackAble Handler;
String CallbackString;
Object CallbackParam;
private void clear() {
Handler=DummyCallback;
Txt="Elem";
Toggled=false;
Enabled=true;
IsTitle=false;
CallbackParam=null;
}
public int Callback(String msg,Object p) {
CallbackString=msg;
CallbackParam=p;
return(Callback());
}
public int Callback() {
return(Handler.Callback(CallbackString,CallbackParam));
}
public DesMenu(){
clear();
}
public DesMenu(String vTxt,boolean vIsTitle) {
clear();
Txt=vTxt;
IsTitle=vIsTitle;
Txt="Title";
}
public DesMenu(String vTxt,boolean vToggled,boolean vEnabled) {
clear();
Txt=vTxt;
Toggled=vToggled;
Enabled=vEnabled;
}
}
class MyMenuItem
extends MenuItem
implements CallbackAble {
DesMenu mydes;
public void setMark(boolean t) {super.setMark(t); mydes.Toggled=t; }
public void enable() {super.enable(); mydes.Enabled=true; }
public void disable() {super.disable(); mydes.Enabled=false; }
public int Callback(String msg,Object p) {
return(mydes.Callback(msg,p));
}
public int Callback() {
return(mydes.Callback());
}
public void selected() {
Callback();
}
public MyMenuItem(Menu m,DesMenu Des){
super(Des.Txt,m,Des.Toggled);
mydes=Des;
setMark(Des.Toggled);
if(Des.Enabled) enable();
else disable();
}
}
class MyMenu {
MenuBar mymenubar;
Menu mymenu[];
MyMenuItem myitems[][]=new MyMenuItem[40][];
public void map() {
int i;
for(i=0;i<mymenu.length;i++) mymenu[i].show();
}
public void unMap() {
int i;
for(i=0;i<mymenu.length;i++) mymenu[i].hide();
}
public MyMenu(Frame fr,DesMenu menu[]){
int i,j,n,m;
mymenubar=new MenuBar(fr);
n=0;
m=0;
for(i=0;i<menu.length && menu[i]!=null ;i++) {
if(menu[i].IsTitle ) {
if(n>0) myitems[n-1]=new MyMenuItem[m];
m=0;
n++;
}
else m++;
}
mymenu=new Menu[n];
if(n>0 && m>0) myitems[n-1]=new MyMenuItem[m];
n=0;
m=0;
for(i=0;i<menu.length && menu[i]!=null;i++) {
if(menu[i].IsTitle) {
mymenu[n]=new Menu(menu[i].Txt,mymenubar);
m=0;
n++;
}
else {
myitems[n-1][m]=new MyMenuItem(mymenu[n-1],menu[i]);
m++;
}
}
}
}
class MyWindow extends Window {
Graphics mygraphics;
public void map() {
super.map();
System.out.println("In MyWindows Map");
mygraphics=new Graphics(this);
}
public void unmap() {
mygraphics.dispose();
}
public void paint() {
System.out.println("In MyWindow Paint");
setForeground(Color.green);
setBackground(Color.gray);
drawString("Ha que c'est la windows la !",10,50);
mygraphics.setForeground(Color.black);
mygraphics.setBackground(Color.red);
mygraphics.drawString("Ha que COUCOU !",20,20);
}
public MyWindow(Frame myframe) {
super(myframe,"WindowMain",Color.white,200,200);
System.out.println("In MyWindows Const 1");
move(100,100);
}
}
class MyFrame {
WServer myserver;
Frame myframe;
MyWindow mywindow;
MyMenu mymenu;
DesMenu mydesmenu[];
public void map() {
if(mymenu==null) mymenu=new MyMenu(myframe,mydesmenu);
myframe.map();
mywindow.map();
mymenu.map();
}
public void unMap() {
mymenu.unMap();
mywindow.unMap();
myframe.unMap();
}
public MyFrame(WServer ws, boolean hasTitlebar, boolean isModal,
Frame parentFrame, int w, int h, Color bg,
String Title,DesMenu menu[]) {
myserver=ws;
mydesmenu=menu;
myframe=new Frame(myserver,hasTitlebar,isModal,parentFrame,w,h,bg);
myframe.setTitle(Title);
mywindow=new MyWindow(myframe);
}
}
class hello {
static DesMenu menu[]=new DesMenu[6];
public static void main (String args[]) {
menu[0]=new DesMenu("Titre1",true);
menu[1]=new DesMenu("Elem 1",false,true);
menu[2]=new DesMenu("Elem 2",false,true);
menu[3]=new DesMenu("Elem 3",false,true);
menu[4]=new DesMenu("Elem 4",false,true);
WServer myserver=new WServer();
myserver.start();
MyFrame myframe=new MyFrame(myserver,true,false,null,500,500,Color.blue,
"Essai de Frame",menu);
myframe.map();
}
}
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