/版权所有helj
import java.awt.*;
import java.io.*;
import java.util.*;
//W_color;C_str;C_file;C_back;W_find;W_fond
interface I_Method
{
public void setQuit();
public void setfont(Font f);
public void setcolor(Color c);
public void Find(String find,int dire);
}
class D_color extends Dialog
{
private Button OK,Cancel;
private I_Method mp;
private Rectangle test;
private Color current= Color.black;
private Color []colors;
private Color []colors1;
private Color []colors2;
private int strlen= 250;
public D_color(Frame fr,I_Method mp,int x,int y)
{
super(fr,"调色板",true);
this.mp= mp;
colors= new Color[strlen];
colors1= new Color[strlen];
colors2= new Color[strlen];
for (int i = 0; i < strlen; i++)
{
float h = ((float)i)/((float)strlen);
colors[i] = new Color(Color.HSBtoRGB(h,1.0f,1.0f));
}
for (int i = 0; i < strlen; i++)
{
float h = ((float)i)/((float)strlen);
colors1[i] = new Color(Color.HSBtoRGB(1.0f,h,1.0f));
}
for (int i = 0; i < strlen; i++)
{
float h = ((float)i)/((float)strlen);
colors2[i] = new Color(Color.HSBtoRGB(1.0f,1.0f,h));
}
setLayout(null);
OK= new Button("确定");
Cancel= new Button("取消");
OK.reshape(320,100,80,30);
add(OK);
Cancel.reshape(320,150,80,30);
add(Cancel);
test= new Rectangle(0,0,300,250);
reshape(x/2-210,y/2-140,420,280);
show();
}
public void update(Graphics g)
{
int y= 0;
for (int i = 0; i < strlen; i++)
{
g.setColor(colors[i]);
g.fillRect(0,y,100,1);
y+=1;
}
y= 0;
for (int i = 0; i < strlen; i++)
{
g.setColor(colors1[i]);
g.fillRect(100,y,100,1);
y+=1;
}
y= 0;
for (int i = 0; i < strlen; i++)
{
g.setColor(colors2[i]);
g.fillRect(200,y,100,1);
y+=1;
}
g.setColor(current);
g.fillRect(330,30,60,60);
}
public void paint(Graphics g)
{
update(g);
}
public boolean mouseMove(Event evt,int x,int y)
{
if(test.inside(x,y))
{
Graphics g1= getGraphics();
//g1.drawImage(back,oldx,oldy);
//g1.clipRect(x-3,y-3,6,6);
g1.setColor(Color.white);
g1.drawArc(x-3,y-3,6,6,60,360);
g1.drawLine(x-3,y,x+3,y);
g1.drawLine(x,y-3,x,y+3);
repaint();
//oldx= x-3;
//oldy= y-3;
return true;
}
return false;
}
public boolean mouseDown(Event evt,int x,int y)
{
if((x>=0)&&(x<=100))
{
current= colors[y];
System.out.println(y);
getGraphics().setColor(current);
getGraphics().fillRect(330,30,60,60);
return true;
}
if((x>100)&&(x<=200))
{
current= colors1[y];
getGraphics().setColor(current);
getGraphics().fillRect(330,30,60,60);
return true;
}
if((x>200)&&(x<=300))
{
current= colors2[y];
getGraphics().setColor(current);
getGraphics().fillRect(330,30,60,60);
return true;
}
return false;
}
public boolean action(Event evt,Object arg)
{
if(evt.target instanceof Button)
{
if(evt.target== OK)
{
mp.setcolor(current);
dispose();
return true;
}
if(evt.target== Cancel)
{
dispose();
return true;
}
}
return super.action(evt,arg);
}
}
class W_quick extends Window
{
MainF fr;
private Dimension sz;
private int w,h;
private int fw,fh;
private FontMetrics fm;
private int index=0;
public W_quick(MainF fr,I_Method qm,int x,int y)
{
super(fr);
this.fr= fr;
setBackground(Color.lightGray);
}
public void show(int x,int y)
{
repaint();
reshape(x,y,100,160);
show();
}
private void draw_uplines(Graphics g,int x,int y,int w1,int h1)
{
g.setColor(Color.white);
g.drawLine(x,y,x+w1-1,x);
g.drawLine(x,y,x,y+h1-1);
g.setColor(Color.black);
g.drawLine(x+w1-1,y-1,x+w1-1,y+h1-1);
g.drawLine(x+w1-2,y+1,x+w1-2,y+h1-2);
g.drawLine(x+1,y+h-2,x+w1-2,y+h1-2);
// g.drawLine(x,y+h1-1,x+w1-1,y+h1-1);
// g.setColor(Color.black);
// g.drawLine(x,y+h1-1,x+w1-1,y+h1-1);
}
public void paint(Graphics g)
{
sz= size();
w= sz.width;
h= sz.height;
// g.setFont(Ffont);
fm= g.getFontMetrics();
fh=fm.getHeight();
fw= fm.charWidth('C');
g.setColor(Color.gray);
g.drawRect(10,(index-1)*fh+6,w-20,fh);
// g.setColor(Color.lightGray);
// g.drawRect(0,0,w,h);
draw_uplines(g,1,1,w-1,h-1);
g.setColor(Color.black);
g.drawString("Cut",13,fh);
g.drawString("Copy",13,2*fh);
g.drawString("Paste",13,3*fh);
g.drawString("Delete",13,4*fh);
}
public boolean mouseMove(Event evt,int x,int y)
{
for(int i=1;i<=4;i++)
if((y>(i-1)*fh)&&(y<(i*fh)))
{
index= i;
repaint();
}
return super.mouseMove(evt,x,y);
}
public boolean mouseDown(Event evt,int x,int y)
{
if(y>0&&y
fh&&(y<(2*fh)))
{
fr.eitem.enable(false);
fr.eitem1.enable(false);
fr.eitem3.enable(false);
fr.eitem2.enable(true);
hide();
return true;
}
if((y>(2*fh))&&(y<(3*fh)))
{
fr.current_t.adds();
fr.eitem2.enable(false);
fr.eitem.enable(false);
fr.eitem1.enable(false);
fr.eitem3.enable(false);
hide();
return true;
}
if((y>(3*fh))&&(y<(4*fh)))
{
fr.current_t.dels();
fr.eitem3.enable(false);
fr.eitem.enable(false);
fr.eitem1.enable(false);
fr.eitem2.enable(false);
hide();
return true;
}
return super.mouseDown(evt,x,y);
}
}
class ptest extends Panel
{
String test= "ABCDabcd";
D_font ff;
public ptest(D_font ff)
{
this.ff= ff;
repaint();
}
private void draw_downlines(Graphics g,int x,int y,int w,int h)
{
g.setColor(Color.white);
g.drawLine(x+1,y+h-1,x+w-1,y+h-1);
g.drawLine(x+w-1,y+h-1,x+w-1,y+1);
g.setColor(Color.black);
g.drawLine(x,y,x,y+h);
g.drawLine(x+1,y+1,x+1,y+h-1);
g.drawLine(x,y,x+w,y);
g.drawLine(x+1,y+1,x+w-1,y+1);
}
public void rep()
{
repaint();
}
public void paint(Graphics g)
{
Dimension sz= size();
Point pt= location();
g.setColor(Color.darkGray);
g.drawRect(0,0,sz.width-2,sz.height-2);
g.setColor(Color.white);
g.drawLine(1,1,1,sz.height-3);
g.drawLine(1,1,sz.width-3,1);
g.drawLine(0,sz.height-1,sz.width-1,sz.height-1);
g.drawLine(sz.width-1,0,sz.width-1,sz.height-1);
draw_downlines(g,15,10,sz.width-30,sz.height-20);
g.clipRect(16,11,sz.width-31,sz.height-21);
g.setColor(Color.black);
g.setFont(ff.bf);
g.drawString(test,20,sz.height-21);
}
}
class D_font extends Dialog
{
public Font bf;
private Button OK,Cancel;
private Label l1,l2,l3;
private String items1[]={"Helvetica","Courier","TimesRoman","Dialog"};
private String items2[]={"PLAIN","BOLD","PLAIN+BOLD","ITALIC","BOLD+ITALIC"};
private int[] style= new int[5];
private String items3[]={"8","9","10","11","12","14","16","18","20","22","24","26","28","36","48","72"};
private TextField f1,f2,f3;
private List ll1,ll2,ll3;
private ptest test;
private I_Method im;
public void init()
{
style[0]= Font.PLAIN;
style[1]= Font.BOLD;
style[2]= Font.PLAIN+Font.BOLD;
style[3]= Font.ITALIC;
style[4]= Font.BOLD+Font.ITALIC;
}
public D_font(Frame fr,I_Method qm,int x,int y)
{
super(fr,"字体",true);
init();
setFont(new Font("TimesRoman",Font.PLAIN,14));
im= qm;
GridBagLayout gridBag= new GridBagLayout();
GridBagConstraints c= new GridBagConstraints();
setLayout(gridBag);
c.insets.left= 4;
c.insets.right= 4;
c.insets.bottom= 1;
c.insets.top= 1;
l1= new Label("字体:",Label.LEFT);
c.gridwidth= GridBagConstraints.REMAINDER;
c.fill= GridBagConstraints.BOTH;
c.weightx= 0.0;
c.weighty= 0.0;
c.gridx=0;
c.gridy=0;
c.gridwidth=2;
c.gridheight =1;
gridBag.setConstraints(l1,c);
add(l1);
l2= new Label("字体样式:",Label.LEFT);
c.gridwidth= GridBagConstraints.REMAINDER;
c.fill= GridBagConstraints.BOTH;
c.weightx= 0.0;
c.weighty= 0.0;
c.gridx=2;
c.gridy=0;
c.gridwidth=1;
c.gridheight =1;
gridBag.setConstraints(l2,c);
add(l2);
l3= new Label("大小:",Label.LEFT);
c.gridwidth= GridBagConstraints.REMAINDER;
c.fill= GridBagConstraints.BOTH;
c.weightx= 0.0;
c.weighty= 0.0;
c.gridx=3;
c.gridy=0;
c.gridwidth=1;
c.gridheight =1;
gridBag.setConstraints(l3,c);
add(l3);
OK= new Button("确定");
c.gridwidth= GridBagConstraints.REMAINDER;
c.fill= GridBagConstraints.BOTH;
c.weightx= 0.0;
c.weighty= 0.0;
c.gridx=4;
c.gridy=1;
c.gridwidth=1;
c.gridheight =1;
gridBag.setConstraints(OK,c);
add(OK);
f1= new TextField();
c.gridwidth= GridBagConstraints.REMAINDER;
c.fill= GridBagConstraints.BOTH;
c.weightx= 0.0;
c.weighty= 0.0;
c.gridx=0;
c.gridy=1;
c.gridwidth=2;
c.gridheight =1;
gridBag.setConstraints(f1,c);
add(f1);
f2= new TextField();
c.gridwidth= GridBagConstraints.REMAINDER;
c.fill= GridBagConstraints.BOTH;
c.weightx= 0.0;
c.weighty= 0.0;
c.gridx=2;
c.gridy=1;
c.gridwidth=1;
c.gridheight =1;
gridBag.setConstraints(f2,c);
add(f2);
f3= new TextField();
c.gridwidth= GridBagConstraints.REMAINDER;
c.fill= GridBagConstraints.BOTH;
c.weightx= 0.0;
c.weighty= 0.0;
c.gridx=3;
c.gridy=1;
c.gridwidth=1;
c.gridheight =1;
gridBag.setConstraints(f3,c);
add(f3);
Cancel= new Button("取消");
c.gridwidth= GridBagConstraints.REMAINDER;
c.fill= GridBagConstraints.BOTH;
c.weightx= 0.0;
c.weighty= 0.0;
c.gridx=4;
c.gridy=2;
c.gridwidth=1;
c.gridheight =1;
gridBag.setConstraints(Cancel,c);
add(Cancel);
ll1= new List();
for(int i=0;i=cus.index;i--)
text[i]= text[i-1];
text[cus.index]= ch;
totle++;
sc.length[cus.liney]+= 1;
repaint();
if(ch=='\n')
{
cus.linex= 1;
cus.liney+= 1;
cus.cusorx= 3;
cus.cusory= cus.liney*cus.h;
cus.index++;
}else
keycusor(1,0);
}
public void adds()
{
totle+= sel.count;
int i;
for(i= totle-1;i>(cus.index+sel.count);i--)
text[i]= text[i-sel.count];
for(int j= sel.count;j>0;j--,i--)
text[i]= sel.sels[j-1];
sel.count= 0;
repaint();
}
public void del(int de)
{
if(de<0)
{
for(int i= cus.index-1;i0)
for(int i= cus.index;i0)
{
int end= sel.index+1;
for(int i= end;icus.index)
{
if((i< totle)&&(i<=sel.index)&&(i>=cus.index))
{
sel.sels[ji]= text[i];
ji++;
g.setColor(Color.blue);
g.fillRect(paint_x,paint_y-fh,fw+1,fh);
g.setColor(Color.white);
g.drawChars(text,i,1,paint_x,paint_y);
}
}else
if((i< totle)&&(i>=sel.index)&&(i<=cus.index))
{
sel.sels[ji]= text[i];
ji++;
g.setColor(Color.blue);
g.fillRect(paint_x,paint_y-fh,fw+1,fh);
g.setColor(Color.white);
g.drawChars(text,i,1,paint_x,paint_y);
}
paint_x+= fw;
}
}
public void home()
{
cus.linex= 1;
int i=0;
cus.index=0;
for(;i< cus.liney+sc.offsety-1;i++)
cus.index+= sc.length[i];
cus.index+=cus.linex-1+sc.offsetx;
cus.cusorx= 3;
cus.paint(getGraphics());
}
public void end()
{
cus.linex= sc.length[cus.liney-1]-1;
int i=0;
cus.index=0;
for(;i< cus.liney+sc.offsety-1;i++)
cus.index+= sc.length[i];
cus.index+=cus.linex-1+sc.offsetx;
cus.cusorx= (cus.linex-1)*cus.w+3;
cus.paint(getGraphics());
}
public void pagedown()
{
if(sc.maxline>2*sc.h)
{
sc.offsety+= sc.h;
fr.vert.setValue(sc.offsety);
draw(getGraphics());
fr.vert.setValue(sc.offsety);
}
}
public void pageup()
{
if((sc.offsety-sc.h)>=0)
{
sc.offsety-=sc.h;
draw(getGraphics());
fr.vert.setValue(sc.offsety);
}
}
public void scrollpaint(int x1,int x2)
{
sc.offsetx= x1;
sc.offsety= x2;
// getGraphics().translate(-x1,-x2);
draw(getGraphics());
}
public void setFont(Font cuf)
{
Ffont= cuf;
//paint= true;
repaint();
}
public void setColor(Color col)
{
Bcolor= col;
// paint= true;
repaint();
}
public void rep()
{
repaint();
}
private void draw(Graphics g)
{
findtext= new String(text,0,totle);
int findi= findcount;
int aa= 0;//用于记录starti
int c1= 0;//记录行的数目
int c2= 0;//记录每行的字节数
int c3= 0; //最大列数
g.setFont(Ffont);
g.setColor(Color.white);
g.fillRect(3,2,sz.width,sz.height);
g.setColor(Bcolor);
paint_x= 3-(int)(sc.offsetx*cus.w);
paint_y= fh-(int)(sc.offsety*fh);
for(int i=0;i< totle;i++)
{
if(text[i]=='\n')
{
paint_x = 3-(int)(sc.offsetx*cus.w);
paint_y+=cus.h;
//i++;
sc.length[c1]= c2+1;
c1++;
if(c2>c3)
c3= c2;
c2= 0;
}else
if(i< totle)
{
fw= fm.charWidth(text[i]);
g.setColor(Bcolor);
g.drawChars(text,i,1,paint_x,paint_y);
if(i== findindex[findi]&&bfind)
{
if(findi>0)
findi--;
g.setColor(Color.blue);
g.fillRect(paint_x,paint_y-fh+2,fw+1,fh);
g.setColor(Color.white);
g.drawChars(text,i,1,paint_x,paint_y);
}
paint_x+= fw;
c2++;
}
}
c1+= 1;
sc.maxline= c1;
cus.paint(g);
if(c3> sc.w)
fr.horz.setValues(0,sc.w,0,c3-sc.w);
if(c1> sc.h)
fr.vert.setValues(0,sc.h,0,c1-sc.h);
}
public void update(Graphics g)
{
sz= size();
g.setColor(Bcolor);
g.setFont(Ffont);
fm= g.getFontMetrics();
cus.h= fh= fm.getHeight();
cus.w= fw= fm.charWidth('A');
sc.h= (int)((sz.height-3)/fh)+1;
sc.w= (int)((sz.width-3)/fw)+1;
draw_downlines(g,0,0,sz.width,sz.height);
//g.clipRect(3,2,sz.width,sz.height);
if(select)
{
drawselect(g);
select= false;
}else
draw(g);
}
public void paint(Graphics g)
{
update(g);
}
public boolean mouseEnter(Event evt,int x,int y)
{
fr.setCursor(2);
return true;
}
public boolean mouseExit(Event evt,int x,int y)
{
fr.setCursor(0);
return true;
}
public void find(String find,int dire)
{
bfind= true;
findcount =0;
String sss= findtext;
for(int i=0;i<100;i++)
findindex[i]= 0;
int j=0;
while(true)
{
if(sss.indexOf(find)==-1)
break;
findindex[j]= sss.lastIndexOf(find);
sss= sss.substring(0,findindex[j]);
j++;
findcount++;
}
repaint();
selold= true;
}
}
public class MainF extends Frame implements I_Method
{
private W_quick Lshow;
private FileDialog openDialog;
private FileDialog saveDialog;
public Scrollbar horz,vert;
private MenuBar menuBar;
private Panel File_panel,Back_p;
private Panel Back_panels[];
private int screenw,screenh;
private Color Fcolor= Color.black;
private Font Ffont= new Font("TimesRoman",Font.PLAIN,14);
private int Fwidth,Fheight;
private int[] bookmarks= new int[20];
//**************
public P_area current_t;
private int i1;
private int iii=0;
private boolean insert= false;
boolean begin= false;//用于标志是否开始选中
boolean end= false;
private int sel1= 0;
private int sel2= 0;
MenuItem eitem;
MenuItem eitem1;
MenuItem eitem2;
public MenuItem eitem3;
MainF(String title)
{
super(title);
Font font= new Font("TimesRoman",Font.BOLD,20);
setFont(font);
setBackground(Color.lightGray);
horz= new Scrollbar(Scrollbar.HORIZONTAL,0,0,0,0);
vert= new Scrollbar(Scrollbar.VERTICAL,0,0,0,0);
// show();
addMenu();
init();
Lshow= new W_quick(this,this,0,0);
openDialog= new FileDialog(this,"Open File...",FileDialog.LOAD);
saveDialog= new FileDialog(this,"Save File...",FileDialog.SAVE);
}
private void init()
{
setLayout(new BorderLayout());
File_panel= new Panel();
File_panel.setBackground(Color.lightGray);
Panel pp= new Panel();
pp.setLayout(new BorderLayout(2,2));
current_t= new P_area(this,Ffont,Fcolor,"aa","aa");
pp.add("Center",current_t);
pp.add("South",horz);
pp.add("East",vert);
add("South",File_panel);
add("Center",pp);
Dimension screen_size= Toolkit.getDefaultToolkit().getScreenSize();
screenw=screen_size.width;
screenh= screen_size.height-16;
reshape(16,16,screen_size.width-32,screen_size.height-32);
show();
}
private void addMenu()
{
menuBar= new MenuBar();
setMenuBar(menuBar);
Menu menu= new Menu("File");
Menu menu1= new Menu("Edit");
Menu menu2= new Menu("Option");
menuBar.add(menu);
menuBar.add(menu1);
menuBar.add(menu2);
MenuItem fitem= new MenuItem("New");
menu.add(fitem);
MenuItem fitem1= new MenuItem("Open");
menu.add(fitem1);
MenuItem fitem2= new MenuItem("Close");
menu.add(fitem2);
menu.addSeparator();
MenuItem fitem3= new MenuItem("Save");
menu.add(fitem3);
MenuItem fitem4= new MenuItem("Save As");
menu.add(fitem4);
menu.addSeparator();
MenuItem fitem5= new MenuItem("Quit");
menu.add(fitem5);
menu1.add(new MenuItem("Undo"));
menu1.add(new MenuItem("Redo"));
menu1.addSeparator();
eitem= new MenuItem("Cut");
menu1.add(eitem);
eitem.enable(false);
eitem1= new MenuItem("Copy");
eitem1.enable(false);
menu1.add(eitem1);
eitem2= new MenuItem("Paste");
menu1.add(eitem2);
eitem2.enable(false);
menu1.addSeparator();
eitem3= new MenuItem("Delete");
menu1.add(eitem3);
eitem3.enable(false);
MenuItem eitem6= new MenuItem("Bookmark");
menu1.add(eitem6);
menu1.addSeparator();
MenuItem eitem4= new MenuItem("Find");
menu1.add(eitem4);
MenuItem eitem5= new MenuItem("Repace");
menu1.add(eitem5);
MenuItem oitem= new MenuItem("Color");
menu2.add(oitem);
MenuItem oitem1= new MenuItem("Font");
menu2.add(oitem1);
}
public void setQuit()
{
this.dispose();
System.exit(0);
}
public void setfont(Font f)
{
Ffont= f;
current_t.setFont(f);
repaint();
}
public void setcolor(Color c)
{
Fcolor= c;
current_t.setColor(c);
repaint();
}
public void paint(Graphics g)
{
if(Ffont!= null)
g.setFont(Ffont);
}
public void read(String fn,String fd)
{
current_t.setname(fn,fd);
String line= null;
String input= null;
File s= new File(fd,fn);
FileInputStream in= null;
DataInputStream datain= null;
try
{
in= new FileInputStream(s);
datain = new DataInputStream(in);
}catch(Exception e)
{
System.out.println("Unable to open file");
return;
}
try{
while((line=datain.readLine())!= null)
{
line+= "\n";
if(input== null)
input= line;
else
input+= line;
}
}catch(IOException e){
System.out.println("Error in reading file");
}
current_t.open(input);
try{
in.close();
}catch(IOException e){
System.out.println("e");
}
}
public void write(String fn,String fd)
{
FileOutputStream out= null;
File s= new File(fd,fn);
try{
out= new FileOutputStream(s);
}catch(Exception e)
{
System.out.println("Unable to open file");
return;
}
PrintStream psOut=new PrintStream(out);
psOut.print(current_t.getText());///
try{
out.close();
}catch(IOException e){
System.out.println("e");
}
}
public boolean keyDown(Event evt,int key)
{
System.out.println(key);
switch(key)
{
case 1004://up
current_t.keycusor(0,-1);
return true;
case 1005://down
current_t.keycusor(0,1);
return true;
case 1006:
current_t.keycusor(-1,0);
return true;
case 1007:
current_t.keycusor(1,0);
return true;
case 8:
current_t.del(-1);
return true;
case 127:
current_t.del(1);
return true;
case 1001://end
current_t.end();
return true;
case 1000://home
current_t.home();
return true;
case 1002:
current_t.pageup();
return true;
case 1003:
current_t.pagedown();
return true;
}
// if(!current_t.border)
// current_t.addchar((char)evt.key);
// else
current_t.add((char)evt.key);
return true;
}
public boolean mouseDown(Event evt,int x,int y)
{
//****单击右键*******************不完整
eitem.enable(false);
eitem1.enable(false);
eitem3.enable(false);
current_t.bfind= false;
if((evt.modifiers&Event.META_MASK)>0)
{
Lshow.show(evt.x,evt.y);
return false;
}else
{
Lshow.hide();
begin= true;
current_t.movecusor(evt.x,evt.y);
if(current_t.selold)
{
current_t.selold= false;
current_t.selrep();
}
}
if(end)
{
// current_t.rep();
// current_t.paint =true;
end= false;
}
return false;
}
public boolean mouseDrag(Event evt,int x,int y)
{
eitem.enable(true);
eitem1.enable(true);
eitem3.enable(true);
current_t.drag(evt.x,evt.y);
//}
return true;
}
public boolean handleEvent(Event evt)
{
if(evt.id== Event.WINDOW_DESTROY)
{
W_quit aa= new W_quit(this,this);
aa.show();
return true;
}
switch(evt.id)
{
case 601:
case 602:
case 603:
case 604:
case 605:
//current_t.offsety= (vert.getValue());
// current_t.offsetx= (horz.getValue());
// current_t.paint= true;
// current_t.rep();
current_t.scrollpaint(horz.getValue(),vert.getValue());
vert.setValue(current_t.sc.offsety);
horz.setValue(current_t.sc.offsetx);
return true;
}
return super.handleEvent(evt);
}
public boolean action(Event evt,Object arg)
{
String filename;
if(evt.target instanceof MenuItem)
{
if(evt.arg.equals("New"))
{
return true;
}
if(evt.arg.equals("Open"))
{
openDialog.show();
String fn= openDialog.getFile();
String filedir= openDialog.getDirectory();
read(fn,filedir);
return true;
}
if(evt.arg.equals("Save"))
{
write(current_t.filename,current_t.filedir);
return true;
}
if(evt.arg.equals("Save As"))
{
saveDialog.show();
filename= saveDialog.getFile();
String filedir= openDialog.getDirectory();
write(filename,filedir);
return true;
}
if(evt.arg.equals("Quit"))
{
System.exit(0);
}
if(evt.arg.equals("Cut"))
{
current_t.dels();
eitem.enable(false);
eitem1.enable(false);
eitem3.enable(false);
eitem2.enable(true);
return true;
}
if(evt.arg.equals("Paste"))
{
current_t.adds();
eitem2.enable(false);
eitem.enable(false);
eitem1.enable(false);
eitem3.enable(false);
return true;
}
if(evt.arg.equals("Copy"))
{
eitem.enable(false);
eitem1.enable(false);
eitem3.enable(false);
eitem2.enable(true);
return true;
}
if(evt.arg.equals("Delete"))
{
current_t.dels();
eitem3.enable(false);
eitem.enable(false);
eitem1.enable(false);
eitem2.enable(false);
return true;
}
if(evt.arg.equals("Close"))
{
current_t.totle= 0;
current_t.rep();
return true;
}
if(evt.arg.equals("Find"))
{
new outPanel(this);
return true;
}
if(evt.arg.equals("Font"))
{
new D_font(this,this,screenw,screenh);
return true;
}
if(evt.arg.equals("Color"))
{
new D_color(this,this,screenw,screenh);
return true;
}
}
/*else if(evt.target instanceof Button)
{
} */
return false;
}
public void Find(String find,int dire)
{
current_t.find(find,dire);
System.out.println(find);
}
public static void main(String[] args)
{
MainF ff= new MainF("文本编译器");
}
}
class outPanel extends Dialog
{
MainF fr;
Label lbname; //name label
TextField tfname; //entry field
outlinePanel psex; //two outlined panels]
CheckboxGroup cbsex;
Checkbox up,down,boxc; //2 radios
Button OK, Cancel; //two pushbuttons
GridBagConstraints gbc;
GridBagLayout gbl;
int dire= 1;
public outPanel(MainF fr)
{
super(fr,"查找",true);
this.fr= fr;
setFont(new Font("Helvetica", Font.PLAIN, 12));
setBackground(Color.lightGray);
gbl =new GridBagLayout();
gbc = new GridBagConstraints();
setLayout(gbl);
gbc.ipadx = 5; //make buttons wider
gbc.ipady = 3; //make buttons higher
gbc.insets.left =6;
gbc.insets.right =6;
gbc.insets.bottom =4;
gbc.insets.top =4;
gbc.weightx =1;
gbc.weighty =1;
lbname = new Label("查找目标:"); //label
add_component(lbname, 0,0,1,1);
tfname = new TextField(20); //text entry field
add_component(tfname, 1,0,3,1);
//panel with two buttons for sex
boxc= new Checkbox("区分大小写");
add_component(boxc, 0,2,1,1);
psex = new outlinePanel(); //first panel
add_component(psex, 1,1,3,2); //insert in layout
//put two radio buttons in panel
up = psex.addCheckbox("向上", false);
down = psex.addCheckbox("向下", true);
psex.resize(148,53);
//add two command buttons to bottom
OK = new Button("找下一个"); //buttons at bottom
Cancel = new Button("取消");
add_component(OK,4,0,1,1);
add_component(Cancel,4,2,1,1);
reshape(100,100, 380,146);
show();
}
//--------------------------------------
private void add_component(Component c, int x, int y, int w, int h)
{
gbc.gridx = x;
gbc.gridy = y;
gbc.gridwidth = w;
gbc.gridheight =h;
add(c);
gbl.setConstraints(c, gbc);
}
//--------------------------------------
public boolean action(Event evt, Object arg)
{
if(evt.target== OK)
{
String ss= tfname.getText();
if(boxc.getState())
{
ss.toLowerCase();
fr.Find(ss,dire);
}else
fr.Find(ss,dire);
}
if (evt.target == Cancel)
{
dispose();
return true;
}
if(evt.target== up)
{
dire=-1;
}
if(evt.target== down)
{
dire= 1;
}
if(evt.target== boxc)
{
}
return super.action(evt, arg);
}
}
//*///=======================================
class outlinePanel extends Panel
{
CheckboxGroup cbg;
int yposn;
Vector cblist;
//--------------------------------------
public outlinePanel()
{
super();
cbg = new CheckboxGroup(); //for radio buttons
setLayout(null);
yposn = 3;
cblist = new Vector();
}
//--------------------------------------
public void reshape(int x, int y, int w, int h)
{
super.reshape(x,y,w,h);
for (int i=0; i< cblist.size(); i++)
{
Component c = (Component)cblist.elementAt(i);
c.reshape(c.location().x, c.location().y, w-6, c.size().height);
}
}
//--------------------------------------
public Component add(Component c)
{
super.add(c);
return c;
}
//--------------------------------------
public Checkbox addCheckbox(String s, boolean checked)
{
Checkbox cb = new Checkbox(s, cbg, checked);
add(cb);
cblist.addElement(cb);
cb.reshape(3, yposn, 50, 12);
yposn += 15;
return cb;
}
//--------------------------------------
public void paint(Graphics g)
{
Dimension sz = size();
Point pt = location();
g.setColor(Color.darkGray); // graw rectangle
g.drawRect(0, 0, sz.width-2, sz.height-2);
//outline gray rectangle with 2 white inner lines
g.setColor(Color.white);
g.drawLine(1, 1, sz.width-3, 1);
g.drawLine(1, 1, 1, sz.height-3);
//and two white outer lines
g.drawLine(0,sz.height-1,sz.width-1,sz.height-1);
g.drawLine(sz.width-1, 0, sz.width-1, sz.height-1);
}
//--------------------------------------
}
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图 1. Mode X中的显示内存组织。
一个DirectDraw表面可以包含多个内存缓冲区，允许构建可以切换的表面。切换表面使程序可以利用双缓冲技术的优点。在双缓冲方法中，程序在后台缓冲区中绘制一些内容，画完后，快速地将后台缓冲区切换或者复制到前台缓冲区，使该画面显示出来。双缓冲方法速度非常快，尤其是当前台和后台缓冲区都在显示内存中时。此时，切换操作甚至不消耗任何CPU时间。
基于DirectDraw程序的用户看到的总是原始表面（Primary surface）。为了改变用户看到的内容，可以简单地改变原始表面的内容。通常，需要创建一个或多个后台表面，这些表面中包含不同时间显示的画面。图2说明了一个复杂的双缓冲原始表面。该原始表面由一个后台缓冲区、一个前台缓冲区和四个后台表面组成。每个后台表面包含一个不同旋转阶段的位图。要使圆柱体动起来，程序将每个位图从后台表面中复制到原始表面的后台缓冲区中的一个位置。每当每个圆柱体的复制完成时，程序将后台缓冲区切换到前台缓冲区。
图2. 双缓冲表面之间的关系
DirectDraw在Java中的实现包括两个为表面工作而特别设计的类。DDSurfaceDesc类用来描述所创建表面的属性。DirectDrawSurface类包含为DirectDraw表面工作所做的定义、方法和变量。
要创建DirectDraw表面，不管是原始表面还是后台表面，必须先创建DDSurfaceDesc对象，设置表面属性，并且把表面描述结构传递给DirectDraw对象的CreateSurface()方法。下面的语句创建了一个由一个缓冲区组成的原始表面：
// Create a primary surface containing a single buffer.
ddsd = new DDSurfaceDesc();
ddsd.flags = DDSD_CAPS ;
ddsd.ddsCaps = DDSCAPS_PRIMARYSURFACE;
pdds = dd.createSurface( ddsd );
下面的语句创建了一个双缓冲原始表面：
//Create a primary surface containing a back //buffer for double buffering.
ddsd = new DDSurfaceDesc();
ddsd.flags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
ddsd.ddsCaps = DDSCAPS_PRIMARYSURFACE | DDSCPAS_FLIP | DDSCAPS_COMPLEX;
ddsd. BackBufferCount = 1;
pdds = dd.createSurface( ddsd );
下面的语句说明了如何创建一个320象素宽200行高的后台表面：
Ddsd = new DDSurfaceDesc();
ddsd.flags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;
ddsd.ddsCaps = DDSCAPS_OFFSCREENPLAIN;
ddsd.width = 320;
ddsd.height = 200;
pdds = dd.createSurface( ddsd );
将位图装入到DirectDraw表面中
位图是程序可以用来显示图形内容的图片。图2中的四个圆柱体每一个都是一张位图。Java中的DirectDraw为操作位图文件提供了DirectDrawBitmap类。DirectDrawBitmap对象创建后，可以复制到DirectDraw表面。下面的语句将一个叫作Frntback.bmp的位图文件读入到DirectDraw表面：
//Read the bitmap file.
Bm = new DirectDrawBitmap();
bm.filename(“Frntback.bmp”);
bm.initWidth(dx);
bm.initHeight(dy);
if( bm.loaded() != 0 )
{
// Create a DirectDrawSurface for
// this bitmap.
ddsd = new DDSurfaceDesc();
ddsd.flags = DDSD_CAPS |
DDSD_HEIGHT | DDSD_WIDTH;
ddsd.ddsCaps = DDSCAPS_OFFSCREENPLAIN;
ddsd.width = bm.width();
ddsd.height = bm.height();
pdds = dd.createSurface( ddsd );
pdds.copyBitmap(bm, 0, 0, 0, 0);
}
//Off-screen surface pdds now contains the
//bitmap data.
显示表面
当所有表面都创建并初始化（例如将位图复制到表面中）以后，程序需要显示它们时就可以将它们复制到原始表面。这种表面复制通过DirectDrawSurface对象的blt方法完成。在缺省的操作模式下，如果切换程序忙（正在进行切换），DDS.blt()方法立即返回一个错误码。因此，应该以某种循环的形式使用DDS.blt()方法，或者指定DDS.blt()方法的DDBLT_WAIT标志。第二个选项改变了DDS.blt()的行为，使得此方法等待，直到切换可以进行或者出现另一个错误。
下面的代码说明了如何使用DirectDrawSurface的blt方法。首先，有两点需要阐明。如果显示卡的模式改变或者程序使用对显示卡的独占访问而释放了当前在显卡上分配的所有表面内存，DirectDrawSurface就会丢失。当表面丢失时，需要恢复。恢复可以通过两个步骤完成。首先调用DirectDrawSurface对象的Restore方法重新分配表面内存以及重新添加DirectDrawSurface对象。然后，重建相关表面的内容。
rc.Left = 0;
rc.Top = 0;
rc.Right = bm.width();
rc.Bottom = bm.height();
// Show the off-screen surface on the
//primary surface.
done = 0;
do
{
int retval;
retval = ddsPrimary.blt( rc, ddsOne, rc, 0);
if( retval == DD_OK )
{
//If the bitmap has been successfully
//copied, exit loop.
done = 1;
}
else if ( retval == DDERR_SURFACELOST )
{
while( ddsPrimary.Restore() != DD_OK &&
ddsOne.Restore() != DD_OK )
{
ReloadBitmap(ddsOne, szBitmap);
}
}
else if( retval != DDERR_WASSTILLDRAWING)
{
// Undetermined error; quit the loop.
done = 1;
}
} while( done == 0);
其他信息
本文提供了初始化和使用Java中DirectDraw SDK的背景和基本步骤。要获得Java的DirectX SDK以及相关文档，可以从http://www.microsoft.com/java/下载Microsoft SDK for Java 2.0（其中包含DirectX SDK）。其中还包括几个示例程序，对于使用DirectX for Java创建动画非常有用。这些例子列举如下：
示例
目录
示例内容
Ddex3
DDraw\ddex3\ddraw.html
DirectDraw的基本使用
Flipcube
d3d\flipcube\D3D.html
3D立即模式的基本使用
Viewer
d3drm\Viewer\direct3dRM.html
Direct3D保持模式的完整使用
Castle
d3drm\Castle\Castle.html
Direct3D保持模式的高性能
DirectInput
dInput\ddex3\dinput.html
操纵杆、鼠标、键盘和游戏键盘的使用
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图为BEA系统公司主席比尔·卡尔曼近影
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