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{
System independent mouse interface for linux
$Id: mouse.inc,v 1.5 1999/07/01 19:41:26 peter Exp $
}
uses
Linux,Video
{$ifdef OLDGPM}
,gpm114
{$else}
,gpm
{$endif}
;
const
mousecur : boolean = false;
mousecurofs : longint = -1;
var
mousecurcell : TVideoCell;
procedure PlaceMouseCur(ofs:longint);
var
upd : boolean;
begin
if VideoBuf=nil then
exit;
upd:=false;
if (MouseCurOfs<>-1) and (VideoBuf^[MouseCurOfs]=MouseCurCell) then
begin
VideoBuf^[MouseCurOfs]:=MouseCurCell xor $7f00;
upd:=true;
end;
MouseCurOfs:=ofs;
if (MouseCurOfs<>-1) then
begin
MouseCurCell:=VideoBuf^[MouseCurOfs] xor $7f00;
VideoBuf^[MouseCurOfs]:=MouseCurCell;
upd:=true;
end;
if upd then
Updatescreen(false);
end;
procedure InitMouse;
var
connect : TGPMConnect;
begin
PendingMouseHead:=@PendingMouseEvent;
PendingMouseTail:=@PendingMouseEvent;
PendingMouseEvents:=0;
FillChar(LastMouseEvent,sizeof(TMouseEvent),0);
{ open gpm }
connect.EventMask:=GPM_MOVE or GPM_DRAG or GPM_DOWN or GPM_UP;
connect.DefaultMask:=0;
connect.MinMod:=0;
connect.MaxMod:=0;
Gpm_Open(connect,0);
{ show mousepointer }
ShowMouse;
end;
procedure DoneMouse;
begin
HideMouse;
Gpm_Close;
end;
function DetectMouse:byte;
begin
{ always a mouse deamon present }
DetectMouse:=2;
end;
procedure ShowMouse;
begin
PlaceMouseCur(MouseCurOfs);
mousecur:=true;
end;
procedure HideMouse;
begin
PlaceMouseCur(-1);
mousecur:=false;
end;
function GetMouseX:word;
var
e : TGPMEvent;
begin
if gpm_fd<0 then
exit(0);
Gpm_GetSnapshot(e);
GetMouseX:=e.x-1;
end;
function GetMouseY:word;
var
e : TGPMEvent;
begin
if gpm_fd<0 then
exit(0);
Gpm_GetSnapshot(e);
GetMouseY:=e.y-1;
end;
function GetMouseButtons:word;
var
e : TGPMEvent;
begin
if gpm_fd<0 then
exit(0);
Gpm_GetSnapshot(e);
GetMouseButtons:=e.buttons;
end;
procedure SetMouseXY(x,y:word);
begin
end;
procedure GetMouseEvent(var MouseEvent: TMouseEvent);
var
e : TGPMEvent;
begin
if gpm_fd<0 then
exit;
Gpm_GetEvent(e);
MouseEvent.x:=e.x-1;
MouseEvent.y:=e.y-1;
MouseEvent.buttons:=0;
if e.buttons and Gpm_b_left<>0 then
inc(MouseEvent.buttons,1);
if e.buttons and Gpm_b_right<>0 then
inc(MouseEvent.buttons,2);
if e.buttons and Gpm_b_middle<>0 then
inc(MouseEvent.buttons,4);
case (e.EventType and $f) of
GPM_MOVE,
GPM_DRAG : MouseEvent.Action:=MouseActionMove;
GPM_DOWN : MouseEvent.Action:=MouseActionDown;
GPM_UP : MouseEvent.Action:=MouseActionUp;
else
MouseEvent.Action:=0;
end;
LastMouseEvent:=MouseEvent;
{ update mouse cursor }
if mousecur then
PlaceMouseCur(MouseEvent.y*ScreenWidth+MouseEvent.x);
end;
function PollMouseEvent(var MouseEvent: TMouseEvent):boolean;
var
e : TGPMEvent;
fds : FDSet;
begin
if gpm_fd<0 then
exit(false);
FD_Zero(fds);
FD_Set(gpm_fd,fds);
if (Select(gpm_fd+1,@fds,nil,nil,1)>0) then
begin
Gpm_GetSnapshot(e);
MouseEvent.x:=e.x-1;
MouseEvent.y:=e.y-1;
MouseEvent.buttons:=0;
if e.buttons and Gpm_b_left<>0 then
inc(MouseEvent.buttons,1);
if e.buttons and Gpm_b_right<>0 then
inc(MouseEvent.buttons,2);
if e.buttons and Gpm_b_middle<>0 then
inc(MouseEvent.buttons,4);
case (e.EventType and $f) of
GPM_MOVE,
GPM_DRAG : MouseEvent.Action:=MouseActionMove;
GPM_DOWN : MouseEvent.Action:=MouseActionDown;
GPM_UP : MouseEvent.Action:=MouseActionUp;
else
MouseEvent.Action:=0;
end;
PollMouseEvent:=true;
end
else
PollMouseEvent:=false;
end;
{
$Log: mouse.inc,v $
Revision 1.5 1999/07/01 19:41:26 peter
* define OLDGPM to compile with old gpm (for v1.14) else the new
gpm unit from rtl will be used (v1.17)
Revision 1.4 1999/06/23 00:01:30 peter
* check for videobuf=nil
Revision 1.3 1999/03/31 20:20:18 michael
+ Fixed probmem preventing IDE to run in x-term.
Revision 1.2 1998/12/11 00:13:20 peter
+ SetMouseXY
* use far for exitproc procedure
Revision 1.1 1998/12/04 12:48:30 peter
* moved some dirs
Revision 1.3 1998/12/01 15:08:16 peter
* fixes for linux
Revision 1.2 1998/10/29 12:49:49 peter
* more fixes
}
|
