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PROGRAM OpenScreen;
{***********************************************************************
* This is an example that shows how to open a p96 Screen and a Window
* to get input events and how to paint on that screen.
* Program terminates when space bar or any mouse button is pressed!
*
* alex (Sun Dec 29 01:42:59 1996)
***********************************************************************}
{
Translated to fpc pascal.
14 Mars 2001.
Updated for fpc 1.0.7
08 Jan 2003.
nils.sjoholm@mailbox.swipnet.se
}
uses exec, amigados, graphics, intuition, picasso96api, utility,systemvartags;
Const
Pens : Array [0..0] Of integer = (NOT(0));
template : pchar = 'Width=W/N,Height=H/N,Depth=D/N';
ScreenTitle : pchar = 'Picasso96 API Test';
vecarray : Array[0..2] of longint = (0,0,0);
ltrue : longint = 1;
Var
sc : pScreen;
wdf,
wdp : pWindow;
rpf,
rpp : pRastPort;
terminate : Boolean;
signals : longint;
format : RGBFTYPE;
x1, y1,
x2, y2,
x3, y3 : word;
imsg : pIntuiMessage;
msg : pMessage;
Dimensions : Array [0..3] Of word;
Width,
Height,
Depth : longint;
rda : pRDArgs;
procedure CleanUp(str : string);
begin
if assigned(wdp) then CloseWindow(wdp);
if assigned(wdf) then CloseWindow(wdf);
if assigned(sc) then p96CloseScreen(sc);
if str <> '' then writeln(str);
halt;
end;
BEGIN
Width:=640;
Height:=480;
Depth:=8;
rda := ReadArgs(template,@vecarray,Nil);
If rda<>Nil Then Begin
If vecarray[0] <> 0 then Width := long(@vecarray[0]);
If vecarray[1] <> 0 then Height := long(@vecarray[1]);
If vecarray[2] <> 0 then Depth := long(@vecarray[2]);
FreeArgs(rda);
End;
sc:=p96OpenScreenTags([P96SA_Width, Width,
P96SA_Height, Height,
P96SA_Depth, Depth,
P96SA_AutoScroll, lTRUE,
P96SA_Pens, @Pens,
P96SA_Title, ScreenTitle,
TAG_DONE]);
If sc=Nil Then CleanUp('Unable to open screen.');
Dimensions[0]:=0;
Dimensions[1]:=sc^.BarHeight+1;
Dimensions[2]:=sc^.Width;
Dimensions[3]:=sc^.Height-sc^.BarHeight-1;
wdp:=OpenWindowTags(NIL,[WA_CustomScreen, sc,
WA_Title,'Writepixel',
WA_Left, (sc^.Width DIV 2-200) DIV 2+sc^.Width DIV 2,
WA_Top, (sc^.Height-sc^.BarHeight-300) DIV 2,
WA_Zoom, @Dimensions,
WA_Width, 200,
WA_Height, 300,
WA_MinWidth, 100,
WA_MinHeight, 100,
WA_MaxWidth, -1,
WA_MaxHeight, -1,
WA_SimpleRefresh, lTRUE,
WA_RMBTrap, lTRUE,
WA_Activate, lTRUE,
WA_CloseGadget, lTRUE,
WA_DepthGadget, lTRUE,
WA_DragBar, lTRUE,
WA_SizeGadget, lTRUE,
WA_SizeBBottom, lTRUE,
WA_GimmeZeroZero, lTRUE,
WA_ScreenTitle,ScreenTitle,
WA_IDCMP, IDCMP_RAWKEY + IDCMP_CLOSEWINDOW,
TAG_DONE]);
If wdp = Nil Then CleanUp('Unable to open window 1.');
wdf:=OpenWindowTags(NIL,[WA_CustomScreen,sc,
WA_Title, 'FillRect',
WA_Left,(sc^.Width div 2-200) div 2,
WA_Top,(sc^.Height-sc^.BarHeight-300)div 2,
WA_Zoom, @Dimensions,
WA_Width, 200,
WA_Height, 300,
WA_MinWidth, 100,
WA_MinHeight, 100,
WA_MaxWidth, -1,
WA_MaxHeight, -1,
WA_SimpleRefresh, lTRUE,
WA_RMBTrap, lTRUE,
WA_Activate, lTRUE,
WA_CloseGadget, lTRUE,
WA_DepthGadget, lTRUE,
WA_DragBar, lTRUE,
WA_SizeGadget, lTRUE,
WA_SizeBBottom, lTRUE,
WA_GimmeZeroZero, lTRUE,
WA_ScreenTitle, ScreenTitle,
WA_IDCMP, IDCMP_RAWKEY or IDCMP_CLOSEWINDOW,
TAG_DONE]);
If wdf = Nil Then CleanUp('Unable to open window 2.');
rpf:=wdf^.RPort;
rpp:=wdp^.RPort;
terminate:=False;
signals:= longint((1 shl wdf^.UserPort^.mp_SigBit) or (1 shl wdp^.UserPort^.mp_SigBit));
format:= RGBFTYPE(p96GetBitMapAttr (sc^.RastPort.BitMap, P96BMA_RGBFORMAT));
Randomize;
Repeat
x1:=Random (wdf^.Width);
y1:=Random (wdf^.Height);
x2:=Random (wdf^.Width);
y2:=Random (wdf^.Height);
If x2<x1 Then Begin
x3:=x2;
x2:=x1;
x1:=x3;
End;
If y2<y1 Then Begin
y3:=y2;
y2:=y1;
y1:=y3;
End;
x3:=Random (wdp^.Width);
y3:=Random (wdp^.Height);
If format=RGBFB_CLUT Then Begin
SetAPen (rpf, Random (255));
RectFill (rpf,x1,y1,x2,y2);
SetAPen (rpp, Random (255));
WritePixel (rpp,x3,y3);
End Else Begin
p96RectFill (rpf, x1, y1, x2, y2,(Random(255) shl 16)+(Random(255) shl 8)+(Random (255)));
p96WritePixel (rpp, x3, y3, ((Random(255)) shl 16) or ((Random(255)) shl 8) or (Random(255)));
End;
Repeat
imsg:=pIntuiMessage(GetMsg (wdf^.UserPort));
If imsg<>Nil Then Begin
If ((imsg^.IClass=IDCMP_CLOSEWINDOW) Or ((imsg^.IClass=IDCMP_RAWKEY) And ((imsg^.Code=$40) or (imsg^.Code=$45)))) Then
terminate:=True;
ReplyMsg (pMessage(imsg));
End;
Until imsg=Nil;
Repeat
imsg:=pIntuiMessage(GetMsg (wdp^.UserPort));
If imsg<>Nil Then Begin
If ((imsg^.IClass=IDCMP_CLOSEWINDOW) Or ((imsg^.IClass=IDCMP_RAWKEY) And ((imsg^.Code=$40) or (imsg^.Code=$45)))) Then
terminate:=True;
ReplyMsg (pMessage(imsg));
End;
Until imsg=Nil;
Until terminate;
Forbid;
Repeat
msg:=GetMsg (wdf^.UserPort);
If msg<>Nil Then
ReplyMsg (msg);
Until msg=Nil;
Repeat
msg:=GetMsg (wdp^.UserPort);
If msg<>Nil Then
ReplyMsg (msg);
Until msg=Nil;
Permit;
CleanUp('');
END.
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