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FILEOPTS.PAS
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FILEOPTS.PAS
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Unit Fileopts;
Interface
Uses
Dos,Crt,Graph,Majkvars,Mousedrv,Redrawop;
procedure Filemenu;
Implementation
var
counter1,counter2,
oldx1,oldy1,oldx2,oldy2 : integer;
onefile : SEARCHREC; {STORES RESULT OF FINDFIRST AND FINDNEXT}
paray : array[0..7] of integer; {POLYGON ARRAY}
rows : array[0..NUMOFROWS] of integer; {HOLDS COORDS OF FILENAMES}
cols : array[0..NUMOFCOLS] of integer;
files : array[1..NUMOFCOLS,1..NUMOFROWS] of string[12]; {HOLDS FILENAMES}
procedure Fixstring;
{
CONVERTS CURRENT FILE PATTERN TO UPERCASE & WORKS OUT THE CURRENT PATH FROM IT
}
begin
Upstring(curpattern);
for counter1:=Length(curpattern) downto 1 do
if curpattern[counter1]='\' then
begin
curpath:=Copy(curpattern,1,counter1);
counter1:=1;
end;
end;
procedure Movename(newx1,newy1,newx2,newy2 : integer);
{
HIGHLIGHTS ANYTHING ON THE SCREEN BY INVERTING IT
ALSO REMOVES HIGHLIGHT FROM OLD POSITION
PARAMS : newx1,newy1,newx2,newy2 = COORDS OF BOX TO BE HIGHLIGHTED
LOCALS : buffer,size = FOR GET AND PUT IMAGE
}
var
buffer : pointer;
size : word;
begin
if (oldx1<>newx1) or (oldy1<>newy1) then {ONLY IF POSITION HAS CHANGED}
begin
Mshow(FALSE);
size :=Imagesize(newx1,newy1,newx2,newy2);
Getmem(buffer,size);
Getimage(newx1,newy1,newx2,newy2,buffer^);
Putimage(newx1,newy1,buffer^,NOTPUT);
Freemem(buffer,size);
size :=Imagesize(oldx1,oldy1,oldx2,oldy2);
Getmem(buffer,size); {INVERTS NEW BOX AND THEN FREES MEMORY}
Getimage(oldx1,oldy1,oldx2,oldy2,buffer^);
Putimage(oldx1,oldy1,buffer^,NOTPUT);
Freemem(buffer,size); {RETURN OLD BOX TO NORMAL}
oldx1:=newx1; oldy1:=newy1;
oldx2:=newx2; oldy2:=newy2;
Mshow(TRUE);
end;
end;
procedure Displaywind;
{
PUTS FILE WINDOW ON SCREEN
LOCALS : polyparts = ARRAY FOR FILLPOLY
}
var
polyparts : array[0..7] of integer;
begin
Mshow(FALSE);
oldx1:=0; oldy1:=0;
oldx2:=0; oldy2:=0;
polyparts[0]:=WINL+1; polyparts[1]:=WINB-1;
polyparts[2]:=WINL+1; polyparts[3]:=WINT+1;
polyparts[4]:=WINR-1; polyparts[5]:=WINT+1;
polyparts[6]:=WINR-1; polyparts[7]:=WINB-1;
Setcolor(1);
Rectangle(WINL-1,WINT-1,WINR+1,WINB);
Setcolor(0);
Setfillstyle(SOLIDFILL,MAXC);
Fillpoly(4,polyparts);
Mshow(TRUE);
end;
procedure Searchfiles;
{
USES FINDFIRST AND FINDNEXT TO SEARCH FOR ALL FILES IN CURRENT DIRECTORY
LOCALS : tempfiles = 1-D ARRAY USED IN THE SORT ROUTINE
onetemp = USED FOR SWAPPING IN SORT
ind = INDEX INTO 1-D ARRAY
}
var
tempfiles : array[1..112] of string[12];
onetemp : string[12];
ind : integer;
begin
for counter1:=1 to 112 do
begin
if (counter1=1) then
begin
Findfirst(curpattern,ANYFILE,onefile);
if DOSERROR=0 then tempfiles[1]:=onefile.name
else tempfiles[1]:=NFILEMSG;
end
else
begin
tempfiles[counter1]:='\'; {IF THERE ARE NO MORE FILES THEN STORE NAME AS A BACKSLASH}
Findnext(onefile);
if DOSERROR=0 then tempfiles[counter1]:=onefile.name;
end;
end; {THE ABOVE READS ALL THE FILES IN THE DIRECTORY}
for counter1:=112 downto 2 do {VERY SIMPLE, BUT VERY FAST BUBBLE SORT}
for counter2:=1 to counter1-1 do
if (tempfiles[counter2]>tempfiles[counter2+1]) then
begin
onetemp:=tempfiles[counter2];
tempfiles[counter2]:=tempfiles[counter2+1];
tempfiles[counter2+1]:=onetemp;
end;
ind:=1;
for counter1:=1 to NUMOFCOLS-1 do
for counter2:=1 to NUMOFROWS-1 do
begin
if ind<113 then files[counter1,counter2]:=tempfiles[ind]
else files[counter1,counter2]:='\';
Inc(ind);
end; {MOVES FILENAMES FROM 1-D ARRAY TO A 2-D ARRAY}
end;
procedure Showfiles;
{
DISPLAYS ALL FILES FOUND ONTO THE FILE WINDOW
}
begin
Mshow(FALSE);
Outtextxy(WINL+TEXTW,WINT+TEXTH,'Directory of '+curpattern);
rows[0]:=WINT+TEXTH*4;
rows[NUMOFROWS]:=WINB-(TEXTH*4)-4;
cols[0]:=WINL+TEXTW;
cols[NUMOFCOLS]:=WINR-(TEXTW*3)-4;
for counter1:=1 to NUMOFROWS-1 do
rows[counter1] :=WINT+TEXTH*(4+(counter1-1));
for counter1:=1 to NUMOFCOLS-1 do
cols[counter1] :=(WINL+TEXTW)+(TEXTW*13*(counter1-1)); {CALCULATE COORDS FOR PRINTING NAMES}
for counter1:=1 to NUMOFCOLS-1 do
for counter2:=1 to NUMOFROWS-1 do
if files[counter1,counter2]<>'\' then
Outtextxy(cols[counter1]+1,rows[counter2]+1,files[counter1,counter2]); {DISPLAY ALL FILENAMES}
Mshow(TRUE);
end;
{$I+}
function Save : boolean;
{
ALLOWS PICTURE FILE TO BE SAVED TO DISK
LOCALS : overwrite = STORES USERS REPLY TO QUESTION ASKING IF HE WISHED TO OVERWRITE A FILE WITH SAME NAME
count = FOR NEXT LOOP COUNTER
}
var
overwrite : boolean;
count : integer;
begin
Save:=FALSE;
ul:='';
if savename='' then savename:=curpath+filename;
if not Editgstring(MAXX div 3,MAXY div 5,0,MAXC,'Save picture as : ',savename,TRUE) then
begin
Refresh(BAR);
Exit; {IF ESCAPE WAS PRESSED TO END EDITING THEN LEAVE PROCEDURE}
end;
Upstring(savename);
curpattern:=savename;
Fixstring; {WORK OUT PATH NAME FROM SAVE NAME}
curpattern:=curpath+'*.MGP';
Findfirst(curpath+'*.*',ANYFILE,onefile);
if (DOSERROR<>0) or (Pos('.MGP',savename)=0) then {CHECK TO SEE IF PATH IS OK AND FILENAME ENDS WITH .MGP}
begin
if DOSERROR<>0 then
begin
Sound(600);Delay(30);Sound(200);Delay(60);Sound(400);Delay(30);Nosound;
overwrite:=Editgstring((MAXX div 2)-(Textwidth(INVPATHMSG) div 2),100,0,MAXC,INVPATHMSG,ul,FALSE)
end
else
begin
Sound(100);Delay(60);Sound(200);Delay(40);Sound(400);Delay(50);Nosound;
overwrite:=Editgstring((MAXX div 2)-(Textwidth(INVFILEMSG) div 2),100,0,MAXC,INVFILEMSG,ul,FALSE);
end;
Refresh(BAR);
Exit;
end;
Findfirst(savename,ANYFILE,onefile);
if DOSERROR=0 then {CHECK TO SEE IF A FILE ALREADY EXISTS WITH THE SAME NAME}
begin
Sound(400);Delay(50);Sound(800);Delay(40);Sound(200);Delay(50);Nosound;
overwrite:=Editgstring((MAXX div 2)-(Textwidth(EXISTMSG) div 2),100,MAXC,0,EXISTMSG,ul,FALSE);
end;
if (overwrite) or (DOSERROR<>0) then
begin
Assign(PICTUREFILE,savename);
Rewrite(PICTUREFILE);
if Ioresult<>0 then
begin
if Editgstring((MAXX div 2)-(Textwidth(FILSAVMSG) div 2),MAXY div 2,0,MAXC,FILSAVMSG,ul,FALSE) then;
Setcolor(MAXC);
Refresh(BAR);
Exit;
end;
for count:=0 to curobj-1 do
Write(PICTUREFILE,picobject[count]);
Close(PICTUREFILE);
drawingchanged:=FALSE;
Save:=TRUE;
end; {SAVE ALL CURRENTLY DRAWN OBJECTS}
Setcolor(MAXC);
xoff:=EXOFF;
yoff:=EYOFF;
scale:=2;
Refresh(BAR);
ul:='';
end;
{$I+}
function Filechosen : boolean;
{
CHECKS POSITION OF MOUSE AND CONTROLS THE HIGHLIGHTING OF THE FILENAMES
ALLOWS EDITING OF CURRENT PATTERN
LOCALS : dirend,dirstart = COORDS OF BEGINNING AND END OF CURPATTERN
oldfname = OLD FILE NAME
}
var
dirend,dirstart : integer;
oldfname : string[12];
begin
dirstart:=WINL+TEXTW+Textwidth('Directory of ');
dirend:=WINL+TEXTW+Textwidth('Directory of '+curpattern);
Filechosen:=FALSE;
paray[0]:=WINL+Textwidth(LMSG); paray[1]:=WINB-(TEXTH*2);
paray[2]:=paray[0]+(TEXTW*12); paray[3]:=paray[1];
paray[4]:=paray[2]; paray[5]:=WINB-TEXTH;
paray[6]:=paray[0]; paray[7]:=paray[5];
repeat
for counter1:=0 to NUMOFCOLS-1 do {SCANS ALL FILE POSITIONS TO FIND WHERE MOUSE IS}
if (regs.cx>cols[counter1]) and (regs.cx<cols[counter1+1]) then
for counter2:=0 to NUMOFROWS-1 do
if (regs.dx>rows[counter2]) and (regs.dx<rows[counter2+1]) then
if files[counter1,counter2]<>'\' then
begin
Movename(cols[counter1],rows[counter2],cols[counter1+1]-TEXTW,rows[counter2+1]);
filename :=files[counter1,counter2];
if filename<>oldfname then
begin
Mshow(FALSE);
Fillpoly(4,paray);
Outtextxy(paray[0],paray[1],filename);
Mshow(TRUE);
oldfname:=filename;
end;
end;
if (regs.dx>WINT+TEXTH) and (regs.dx<WINT+TEXTH*2) then {IF MOUSE IS OVER FILE PATTERN THE HIGHLIGHT IT}
Movename(dirstart-1,WINT+TEXTH-1,dirend-1,WINT+TEXTH*2-1);
until Mstatus<>0;
if (regs.bx=LEFTBUT) then
if (regs.dx>WINT+TEXTH) and (regs.dx<WINT+TEXTH*2) then
begin
if Editgstring(dirstart,WINT+TEXTH,MAXC,0,'',curpattern,TRUE) then
begin {IF THE USER HAS EDITED THE PATTERN THEN REDISPLAY NEW DIRECTORY OF FILES}
Fixstring;
Displaywind;
Outtextxy(WINL+TEXTW,WINB-(TEXTH*2),LMSG);
Outtextxy(WINR-Textwidth(CMSG)-(TEXTW*2),WINB-(TEXTH*2),CMSG);
Searchfiles;
Showfiles;
end;
end
else Filechosen:=TRUE
else {IF ANY OTHER BUTTON THAN LEFTBUT IS PRESSED THEN NO FILE IS CHOSEN}
begin
filename:=NFILEMSG;
Filechosen:=TRUE;
end;
end;
{$I+}
procedure Load;
{
CONTROLS ORDER OF EVENTS WHEN CHOSING A FILE TO LOAD AND LOADS THE CHOSEN FILE
}
begin
Displaywind;
Outtextxy(WINL+TEXTW,WINB-(TEXTH*2),LMSG);
Outtextxy(WINR-Textwidth(CMSG)-(TEXTW*2),WINB-(TEXTH*2),CMSG);
Searchfiles;
Showfiles;
repeat until Filechosen;
Upstring(filename);
if (Pos('.MGP',filename)=0) and (regs.bx<>RIGHTBUT) then {IF A VALID FILENAME}
begin {THEN DISPLAY ERROR MESSAGE}
filename:=NFILEMSG;
Nosound;Sound(400);Delay(15);Sound(300);Delay(15);Sound(600);Delay(15);Nosound;
if Editgstring((MAXX div 2)-(Textwidth(NOTMGPMSG) div 2),MAXY div 2,0,MAXC,NOTMGPMSG,ul,FALSE) then;
end;
if (regs.bx=LEFTBUT) and (filename<>NFILEMSG) then
begin {IF THE LEFT BUTTON HAS BEEN PRESSED AND A VALID FILENAME CHOSEN THEN READ THE FILE IN}
Sound(1000);Delay(50);Nosound;
curobj:=0;
Assign(PICTUREFILE,curpath+filename);
reset(PICTUREFILE);
while not Eof(PICTUREFILE) do
begin
Read(PICTUREFILE,picobject[curobj]);
Inc(curobj); {SETS CUROBJ TO THE NUMBER OF RECORDS READ IN + 1}
if Ioresult<>0 then
begin
if Editgstring((MAXX div 2)-(Textwidth(FILERRMSG) div 2),MAXY div 2,0,MAXC,FILERRMSG,ul,FALSE) then;
Setcolor(MAXC);
Refresh(BAR);
Exit;
end;
end;
Close(PICTUREFILE);
drawingchanged:=FALSE;
end;
Setcolor(MAXC);
scale:=2; {SETS ZOOM SCALE AND RECENTER OBJECTS}
yoff:=EXOFF;
yoff:=EYOFF;
Refresh(BAR);
ul:='';
end;
{$I+}
procedure Deletefile;
{
USES A CALL TO MS-DOS TO DELETE ANYFILE
}
begin
Displaywind;
Outtextxy(WINL+TEXTW,WINB-(TEXTH*2),DELMSG);
Outtextxy(WINR-Textwidth(CMSG)-(TEXTW*2),WINB-(TEXTH*2),CMSG);
Searchfiles;
Showfiles;
repeat if Filechosen then; until Mstatus<>0;
if (regs.bx=LEFTBUT) and (filename<>NFILEMSG) then
begin {MAKE SURE THAT THE USER REALLY WANTS TO DELETE THE FILE, IF RETURN IS PRESSED THEN DELETE}
Sound(800);Delay(40);Sound(200);Delay(50);Nosound;
if Editgstring((MAXX div 2)-(Textwidth(DELCKMSG) div 2),MAXY div 2,0,MAXC,DELCKMSG,ul,FALSE) then
Exec('A:\COMMAND.COM','/C DEL '+curpath+filename);
end;
Setcolor(MAXC);
Refresh(BAR);
end;
procedure Gotodos;
{
CALLS COMMAND.COM AND ALLOWS USER TO EXECUTE MS-DOS COMMANDS
}
var
scrbuf : pointer;
scrsiz : word;
mem : longint;
begin
Mshow(FALSE);
restorecrtmode;
Writeln('Now entering MS-Dos.');
Writeln('Type "exit" to return to Magigraf.');
Exec('A:\COMMAND.COM','/B'); {CALL COMMAND.COM}
Clrscr; {WHEN USER RETURNS BY TYPING EXIT THE PROGRAM IS RESUMED FROM HERE}
Writeln('Welcome back, to Magigraph.');
if DOSERROR <>0 then Writeln('A Dos-error has occured, code:=',DOSERROR); {8 IS THE USUAL ERROR CODE, OUT OF MEMORY}
Delay(2000);
Setgraphmode(getgraphmode); {BACK INTO GRAPHICS MODE}
Mnewpointer(WANDXHOT,WANDYHOT,wand);
Refresh(BAR);
if not HERC then Mshow(TRUE);
end;
procedure Leaveprog;
{
CLOSES GRAPHICS, FREES MEMORY, AND EXITS PROGRAM
}
begin
if drawingchanged then
begin
Sound(200);Delay(50);Sound(300);Delay(40);Sound(100);Delay(50);Nosound;
if Editgstring((MAXX div 2)-(Textwidth(SAVEFILEMSG) div 2),MAXY div 2,MAXC,0,SAVEFILEMSG,ul,FALSE) then
repeat until Save;
end;
Closegraph;
if HERC then Freemem(curbuf,cursiz);
Freemem(barbuf,barsiz);
Writeln('You have been using MAGIGRAPH, (C) G.A.Godfrey 1988.');
Halt;
end;
procedure Filemenu;
{
CONTROL FOR FILEMENU
}
begin
case ono of
0 : if Save then;
1 : Load;
2 : Deletefile;
3 : Gotodos;
4 : Leaveprog;
end;
end;
end.