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{
Creating a simple MUI custom class, using MUI and MUIHelper units
Free Pascal for MorphOS example
Copyright (C) 2006 by Karoly Balogh
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************}
{ ** Quick & Dirty coding, but should provide a few useful hints. ** }
{ ** Some better examples will follow. ** }
{$inline on}
{$macro on}
program muidemo2;
uses exec, doslib, intuition, mui, aboxlib, muihelper;
// temp hack
const
TRAP_LIB = $ff00;
var
app: pObject_;
win: pObject_;
signals: longword;
retval: longword;
quitapp: boolean;
quitbutton: pObject_;
my_Stuff: PMUI_CustomClass;
{$warning wtf?!}
const
MUIM_my_Toggle = $ab00f000; // wtf?
function TAG(value: pointer): longword; inline;
begin
TAG:=longword(value);
end;
function TAG(value: pchar): longword; inline;
begin
TAG:=longword(value);
end;
const
sayings: array[0..3] of PChar = (MUIX_R+'w00t...?', MUIX_L+'b00...!!11',MUIX_C+':: 0wn3d! ::',MUIX_C+'l33t h4x0r');
type pmy_Data = ^tmy_Data;
tmy_Data = record
curr_Saying: dword;
saying: pObject_;
end;
// my Subclass
// ********************************************************************
function my_New(cl: pIClass; obj: pObject_; msg: pOpSet): LongWord; cdecl;
var button: pObject_;
saying: pObject_;
data: pmy_Data;
begin
DWord(obj):=DoSuperNew(cl, obj,
[ Child, TAG(MH_VGroup('Teh Butt0n Klass',
[ Child, TAG(MH_Text(saying,sayings[0])),
Child, TAG(MH_MakeButton(button,'r0x0r')),
TAG_DONE
])),
TAG_MORE, DWord(msg^.ops_AttrList)]);
if obj <> nil then begin
data:=INST_DATA(cl,p_Object(obj));
data^.saying:=saying;
data^.curr_Saying:=0;
DoMethod(button, [ MUIM_Notify, MUIA_Pressed, MUI_TRUE, TAG(obj), 1, MUIM_my_Toggle ]);
end;
my_New:=DWord(obj);
end;
function my_Toggle(data: pmy_Data): longword;
begin
with data^ do begin
inc(curr_Saying);
if curr_Saying > 3 then curr_Saying:=0;
MUIset(saying, MUIA_Text_Contents, DWord(sayings[curr_Saying]));
end;
my_Toggle:=0;
end;
// MCC_Dispatcher in Pascal
// evil C programmers inventing macroed API should be punished to death
// ********************************************************************
function my_DispatcherPPC: LongWord;
var
cl : pIClass;
obj: pObject_;
msg: PMsg;
tmpResult: longword;
data: pmy_Data;
begin
DISPATCHERARG(cl,obj,msg);
data:=INST_DATA(cl,p_Object(obj));
case (msg^.MethodID) of
OM_NEW: tmpResult:=my_New(cl,obj,popSet(msg));
MUIM_my_Toggle: tmpResult:=my_Toggle(data);
else
tmpResult:=DoSuperMethodA(cl,obj,msg);
end;
my_DispatcherPPC:=tmpResult;
end;
const
my_Dispatcher : TEmulLibEntry = ( Trap: TRAP_LIB; Extension: 0; Func: @my_DispatcherPPC );
// Our cleanup procedure
// ********************************************************************
procedure Shutdown(error: string);
begin
if (app <> nil) then MUI_DisposeObject(app);
if (my_Stuff <> nil) then MUI_DeleteCustomClass(my_Stuff);
if error<>'' then begin
writeln(error);
halt(1);
end else begin
halt;
end;
end;
// main()
// ********************************************************************
begin
InitIntuitionLibrary;
InitMUIMasterLibrary;
my_Stuff := MUI_CreateCustomClass(NIL, MUIC_Group, NIL, sizeof(tmy_Data), @my_Dispatcher);
if my_Stuff = NIL then Shutdown('error: cannot create custom class.');
// Our application object
app := MH_Application(
[ MUIA_Application_Title , TAG('FPC MUI Test 2'), // Name of our app
MUIA_Application_Version , TAG('1.0'), // Our version
MUIA_Application_Copyright, TAG('Public Domain'), // Copyright status
MUIA_Application_Author , TAG('Karoly Balogh'), // Author
MUIA_Application_Base , TAG('FPC_MUITEST2'), // ENVARC prefsfilename
SubWindow, TAG(MH_Window(win,
[ MUIA_Window_Title , TAG('FPC MUI Test 2'),
MUIA_Window_ID , MAKE_ID('M','A','I','N'), // Config ID to store window settings (position, size etc)
WindowContents, TAG(MH_VGroup(
[ Child, TAG(MH_ColGroup(2,
[ Child, TAG(NewObject(my_Stuff^.mcc_Class, NIL, [TAG_DONE])),
Child, TAG(NewObject(my_Stuff^.mcc_Class, NIL, [TAG_DONE])),
Child, TAG(NewObject(my_Stuff^.mcc_Class, NIL, [TAG_DONE])),
Child, TAG(NewObject(my_Stuff^.mcc_Class, NIL, [TAG_DONE])),
MUI_END])),
Child, TAG(MH_MakeHBar(2)),
Child, TAG(MH_MakeButton(quitbutton,'Teh Quit')),
MUI_END])),
MUI_END])),
MUI_END]);
if app = nil then Shutdown('error: cannot create application.');
{* Setting quit notifies * }
DoMethod(win, [ MUIM_Notify, MUIA_Window_CloseRequest, MUI_TRUE, MUIV_Notify_Application, 2, MUIM_Application_ReturnID, DWord(MUIV_Application_ReturnID_Quit) ]);
DoMethod(quitbutton, [ MUIM_Notify, MUIA_Pressed, MUI_TRUE, MUIV_Notify_Application, 2, MUIM_Application_ReturnID, DWord(MUIV_Application_ReturnID_Quit) ]);
{* Setting MUIA_Window_Open to TRUE makes our window visible. *}
MUIset(win, MUIA_Window_Open, MUI_TRUE);
quitapp:=false;
signals:=0;
while not quitapp do begin
retval:=DoMethod(app, [MUIM_Application_NewInput, DWord(@signals)]);
if (retval = DWord(MUIV_Application_ReturnID_Quit)) then
quitapp:=true;
if (signals <> 0) then begin
signals := Wait(signals Or SIGBREAKF_CTRL_C);
if (signals and SIGBREAKF_CTRL_C) > 0 then
quitapp:=true;
end;
end;
Shutdown('');
end.
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