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- {
- This file is part of the Free Pascal run time library.
-
- A file in Amiga system run time library.
- Copyright (c) 1998-2000 by Nils Sjoholm
- member of the Amiga RTL development team.
-
- 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.
-
- **********************************************************************}
- {
- History:
- Added overlay functions for Pchar->Strings, functions
- and procedures.
-
- 14 Jul 2000.
- nils.sjoholm@mailbox.swipnet.se
- }
-
- unit commodities;
-
- INTERFACE
-
- {$I amigaoverlays.inc}
-
- uses exec, inputevent, keymap;
-
-
-
- { **************
- * Broker stuff
- **************}
-
- CONST
- { buffer sizes }
- CBD_NAMELEN = 24;
- CBD_TITLELEN = 40;
- CBD_DESCRLEN = 40;
-
- { CxBroker errors }
- CBERR_OK = 0; { No error }
- CBERR_SYSERR = 1; { System error , no memory, etc }
- CBERR_DUP = 2; { uniqueness violation }
- CBERR_VERSION = 3; { didn't understand nb_VERSION }
-
- NB_VERSION = 5; { Version of NewBroker structure }
-
- Type
- pNewBroker = ^tNewBroker;
- tNewBroker = record
- nb_Version : Shortint; { set to NB_VERSION }
- nb_Name,
- nb_Title,
- nb_Descr : STRPTR;
- nb_Unique,
- nb_Flags : Integer;
- nb_Pri : Shortint;
- { new in V5 }
- nb_Port : pMsgPort;
- nb_ReservedChannel : Integer; { plans for later port sharing }
- END;
-
- CONST
- { Flags for nb_Unique }
- NBU_DUPLICATE = 0;
- NBU_UNIQUE = 1; { will not allow duplicates }
- NBU_NOTIFY = 2; { sends CXM_UNIQUE to existing broker }
-
- { Flags for nb_Flags }
- COF_SHOW_HIDE = 4;
-
- { *******
- * cxusr
- *******}
-
- { * Fake data types for system private objects }
- Type
- CxObj = Longint;
- pCxObj = ^CxObj;
- CxMsg = Longint;
- pCXMsg = ^CxMsg;
-
-
- CONST
- { ******************************}
- { * Commodities Object Types *}
- { ******************************}
- CX_INVALID = 0; { not a valid object (probably null) }
- CX_FILTER = 1; { input event messages only }
- CX_TYPEFILTER = 2; { filter on message type }
- CX_SEND = 3; { sends a message }
- CX_SIGNAL = 4; { sends a signal }
- CX_TRANSLATE = 5; { translates IE into chain }
- CX_BROKER = 6; { application representative }
- CX_DEBUG = 7; { dumps kprintf to serial port }
- CX_CUSTOM = 8; { application provids function }
- CX_ZERO = 9; { system terminator node }
-
- { ***************}
- { * CxMsg types *}
- { ***************}
- CXM_UNIQUE = 16; { sent down broker by CxBroker() }
- { Obsolete: subsumed by CXM_COMMAND (below) }
-
- { Messages of this type rattle around the Commodities input network.
- * They will be sent to you by a Sender object, and passed to you
- * as a synchronous function call by a Custom object.
- *
- * The message port or function entry point is stored in the object,
- * and the ID field of the message will be set to what you arrange
- * issuing object.
- *
- * The Data field will point to the input event triggering the
- * message.
- }
- CXM_IEVENT = 32;
-
- { These messages are sent to a port attached to your Broker.
- * They are sent to you when the controller program wants your
- * program to do something. The ID field identifies the command.
- *
- * The Data field will be used later.
- }
- CXM_COMMAND = 64;
-
- { ID values }
- CXCMD_DISABLE = (15); { please disable yourself }
- CXCMD_ENABLE = (17); { please enable yourself }
- CXCMD_APPEAR = (19); { open your window, if you can }
- CXCMD_DISAPPEAR = (21); { go dormant }
- CXCMD_KILL = (23); { go away for good }
- CXCMD_UNIQUE = (25); { someone tried to create a broker
- * with your name. Suggest you Appear.
- }
- CXCMD_LIST_CHG = (27); { Used by Exchange program. Someone }
- { has changed the broker list }
-
- { return values for BrokerCommand(): }
- CMDE_OK = (0);
- CMDE_NOBROKER = (-1);
- CMDE_NOPORT = (-2);
- CMDE_NOMEM = (-3);
-
- { IMPORTANT NOTE: for V5:
- * Only CXM_IEVENT messages are passed through the input network.
- *
- * Other types of messages are sent to an optional port in your broker.
- *
- * This means that you must test the message type in your message handling,
- * if input messages and command messages come to the same port.
- *
- * Older programs have no broker port, so processing loops which
- * make assumptions about type won't encounter the new message types.
- *
- * The TypeFilter CxObject is hereby obsolete.
- *
- * It is less convenient for the application, but eliminates testing
- * for type of input messages.
- }
-
- { ********************************************************}
- { * CxObj Error Flags (return values from CxObjError()) *}
- { ********************************************************}
- COERR_ISNULL = 1; { you called CxError(NULL) }
- COERR_NULLATTACH = 2; { someone attached NULL to my list }
- COERR_BADFILTER = 4; { a bad filter description was given }
- COERR_BADTYPE = 8; { unmatched type-specific operation }
-
-
- { ****************************}
- { Input Expression structure }
- { ****************************}
-
- IX_VERSION = 2;
-
- Type
- pInputXpression = ^tInputXpression;
- tInputXpression = record
- ix_Version, { must be set to IX_VERSION }
- ix_Class : Byte; { class must match exactly }
-
- ix_Code : Word; { Bits that we want }
-
- ix_CodeMask : Word; { Set bits here to indicate }
- { which bits in ix_Code are }
- { don't care bits. }
-
- ix_Qualifier: Word; { Bits that we want }
-
- ix_QualMask : Word; { Set bits here to indicate }
- { which bits in ix_Qualifier }
- { are don't care bits }
-
- ix_QualSame : Word; { synonyms in qualifier }
- END;
-
- IX = tInputXpression;
- pIX = ^IX;
-
- CONST
- { QualSame identifiers }
- IXSYM_SHIFT = 1; { left- and right- shift are equivalent }
- IXSYM_CAPS = 2; { either shift or caps lock are equivalent }
- IXSYM_ALT = 4; { left- and right- alt are equivalent }
-
- { corresponding QualSame masks }
- IXSYM_SHIFTMASK = (IEQUALIFIER_LSHIFT + IEQUALIFIER_RSHIFT);
- IXSYM_CAPSMASK = (IXSYM_SHIFTMASK + IEQUALIFIER_CAPSLOCK);
- IXSYM_ALTMASK = (IEQUALIFIER_LALT + IEQUALIFIER_RALT);
-
- IX_NORMALQUALS = $7FFF; { for QualMask field: avoid RELATIVEMOUSE }
-
-
- VAR CxBase : pLibrary;
-
- FUNCTION ActivateCxObj(co : pCxObj; tru : LONGINT) : LONGINT;
- PROCEDURE AddIEvents(events : pInputEvent);
- PROCEDURE AttachCxObj(headObj : pCxObj; co : pCxObj);
- PROCEDURE ClearCxObjError(co : pCxObj);
- FUNCTION CreateCxObj(typ : ULONG; arg1 : LONGINT; arg2 : LONGINT): pCxObj;
- FUNCTION CxBroker(nb : pNewBroker; error : pCxObj) : pCxObj;
- FUNCTION CxMsgData(cxm : pCxMsg) : POINTER;
- FUNCTION CxMsgID(cxm : pCxMsg) : LONGINT;
- FUNCTION CxMsgType(cxm : pCxMsg) : ULONG;
- FUNCTION CxObjError(co : pCxObj) : LONGINT;
- FUNCTION CxObjType(co : pCxObj) : ULONG;
- PROCEDURE DeleteCxObj(co : pCxObj);
- PROCEDURE DeleteCxObjAll(co : pCxObj);
- PROCEDURE DisposeCxMsg(cxm : pCxMsg);
- PROCEDURE DivertCxMsg(cxm : pCxMsg; headObj : pCxObj; returnObj : pCxObj);
- PROCEDURE EnqueueCxObj(headObj : pCxObj; co : pCxObj);
- PROCEDURE InsertCxObj(headObj : pCxObj; co : pCxObj; pred : pCxObj);
- FUNCTION InvertKeyMap(ansiCode : ULONG; event : pInputEvent; km : pKeyMap) : BOOLEAN;
- FUNCTION MatchIX(event : pInputEvent; ix : pInputXpression) : BOOLEAN;
- FUNCTION ParseIX(description : pCHAR; ix : pInputXpression) : LONGINT;
- PROCEDURE RemoveCxObj(co : pCxObj);
- PROCEDURE RouteCxMsg(cxm : pCxMsg; co : pCxObj);
- FUNCTION SetCxObjPri(co : pCxObj; pri : LONGINT) : LONGINT;
- PROCEDURE SetFilter(filter : pCxObj; text : pCHAR);
- PROCEDURE SetFilterIX(filter : pCxObj; ix : pInputXpression);
- PROCEDURE SetTranslate(translator : pCxObj; events : pInputEvent);
-
- {$ifdef amiga_overlays}
-
- FUNCTION ParseIX(description : string; ix : pInputXpression) : LONGINT;
- PROCEDURE SetFilter(filter : pCxObj; text : string);
-
- {$endif}
-
- IMPLEMENTATION
-
- {$ifdef amiga_overlays}
- uses pastoc;
- {$endif}
-
- FUNCTION ActivateCxObj(co : pCxObj; tru : LONGINT) : LONGINT;
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L co,A0
- MOVE.L tru,D0
- MOVEA.L CxBase,A6
- JSR -042(A6)
- MOVEA.L (A7)+,A6
- MOVE.L D0,@RESULT
- END;
- END;
-
- PROCEDURE AddIEvents(events : pInputEvent);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L events,A0
- MOVEA.L CxBase,A6
- JSR -180(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- PROCEDURE AttachCxObj(headObj : pCxObj; co : pCxObj);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L headObj,A0
- MOVEA.L co,A1
- MOVEA.L CxBase,A6
- JSR -084(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- PROCEDURE ClearCxObjError(co : pCxObj);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L co,A0
- MOVEA.L CxBase,A6
- JSR -072(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- FUNCTION CreateCxObj(typ : ULONG; arg1 : LONGINT; arg2 : LONGINT) : pCxObj;
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVE.L typ,D0
- MOVEA.L arg1,A0
- MOVEA.L arg2,A1
- MOVEA.L CxBase,A6
- JSR -030(A6)
- MOVEA.L (A7)+,A6
- MOVE.L D0,@RESULT
- END;
- END;
-
- FUNCTION CxBroker(nb : pNewBroker; error : pCxObj) : pCxObj;
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L nb,A0
- MOVE.L error,D0
- MOVEA.L CxBase,A6
- JSR -036(A6)
- MOVEA.L (A7)+,A6
- MOVE.L D0,@RESULT
- END;
- END;
-
- FUNCTION CxMsgData(cxm : pCxMsg) : POINTER;
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L cxm,A0
- MOVEA.L CxBase,A6
- JSR -144(A6)
- MOVEA.L (A7)+,A6
- MOVE.L D0,@RESULT
- END;
- END;
-
- FUNCTION CxMsgID(cxm : pCxMsg) : LONGINT;
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L cxm,A0
- MOVEA.L CxBase,A6
- JSR -150(A6)
- MOVEA.L (A7)+,A6
- MOVE.L D0,@RESULT
- END;
- END;
-
- FUNCTION CxMsgType(cxm : pCxMsg) : ULONG;
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L cxm,A0
- MOVEA.L CxBase,A6
- JSR -138(A6)
- MOVEA.L (A7)+,A6
- MOVE.L D0,@RESULT
- END;
- END;
-
- FUNCTION CxObjError(co : pCxObj) : LONGINT;
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L co,A0
- MOVEA.L CxBase,A6
- JSR -066(A6)
- MOVEA.L (A7)+,A6
- MOVE.L D0,@RESULT
- END;
- END;
-
- FUNCTION CxObjType(co : pCxObj) : ULONG;
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L co,A0
- MOVEA.L CxBase,A6
- JSR -060(A6)
- MOVEA.L (A7)+,A6
- MOVE.L D0,@RESULT
- END;
- END;
-
- PROCEDURE DeleteCxObj(co : pCxObj);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L co,A0
- MOVEA.L CxBase,A6
- JSR -048(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- PROCEDURE DeleteCxObjAll(co : pCxObj);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L co,A0
- MOVEA.L CxBase,A6
- JSR -054(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- PROCEDURE DisposeCxMsg(cxm : pCxMsg);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L cxm,A0
- MOVEA.L CxBase,A6
- JSR -168(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- PROCEDURE DivertCxMsg(cxm : pCxMsg; headObj : pCxObj; returnObj : pCxObj);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L cxm,A0
- MOVEA.L headObj,A1
- MOVEA.L returnObj,A2
- MOVEA.L CxBase,A6
- JSR -156(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- PROCEDURE EnqueueCxObj(headObj : pCxObj; co : pCxObj);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L headObj,A0
- MOVEA.L co,A1
- MOVEA.L CxBase,A6
- JSR -090(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- PROCEDURE InsertCxObj(headObj : pCxObj; co : pCxObj; pred : pCxObj);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L headObj,A0
- MOVEA.L co,A1
- MOVEA.L pred,A2
- MOVEA.L CxBase,A6
- JSR -096(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- FUNCTION InvertKeyMap(ansiCode : ULONG; event : pInputEvent; km : pKeyMap) : BOOLEAN;
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVE.L ansiCode,D0
- MOVEA.L event,A0
- MOVEA.L km,A1
- MOVEA.L CxBase,A6
- JSR -174(A6)
- MOVEA.L (A7)+,A6
- TST.W D0
- BEQ.B @end
- MOVEQ #1,D0
- @end: MOVE.B D0,@RESULT
- END;
- END;
-
- FUNCTION MatchIX(event : pInputEvent; ix : pInputXpression) : BOOLEAN;
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L event,A0
- MOVEA.L ix,A1
- MOVEA.L CxBase,A6
- JSR -204(A6)
- MOVEA.L (A7)+,A6
- TST.W D0
- BEQ.B @end
- MOVEQ #1,D0
- @end: MOVE.B D0,@RESULT
- END;
- END;
-
- FUNCTION ParseIX(description : pCHAR; ix : pInputXpression) : LONGINT;
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L description,A0
- MOVEA.L ix,A1
- MOVEA.L CxBase,A6
- JSR -132(A6)
- MOVEA.L (A7)+,A6
- MOVE.L D0,@RESULT
- END;
- END;
-
- PROCEDURE RemoveCxObj(co : pCxObj);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L co,A0
- MOVEA.L CxBase,A6
- JSR -102(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- PROCEDURE RouteCxMsg(cxm : pCxMsg; co : pCxObj);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L cxm,A0
- MOVEA.L co,A1
- MOVEA.L CxBase,A6
- JSR -162(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- FUNCTION SetCxObjPri(co : pCxObj; pri : LONGINT) : LONGINT;
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L co,A0
- MOVE.L pri,D0
- MOVEA.L CxBase,A6
- JSR -078(A6)
- MOVEA.L (A7)+,A6
- MOVE.L D0,@RESULT
- END;
- END;
-
- PROCEDURE SetFilter(filter : pCxObj; text : pCHAR);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L filter,A0
- MOVEA.L text,A1
- MOVEA.L CxBase,A6
- JSR -120(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- PROCEDURE SetFilterIX(filter : pCxObj; ix : pInputXpression);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L filter,A0
- MOVEA.L ix,A1
- MOVEA.L CxBase,A6
- JSR -126(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- PROCEDURE SetTranslate(translator : pCxObj; events : pInputEvent);
- BEGIN
- ASM
- MOVE.L A6,-(A7)
- MOVEA.L translator,A0
- MOVEA.L events,A1
- MOVEA.L CxBase,A6
- JSR -114(A6)
- MOVEA.L (A7)+,A6
- END;
- END;
-
- {$ifdef amiga_overlays}
-
- FUNCTION ParseIX(description : string; ix : pInputXpression) : LONGINT;
- begin
- ParseIX := ParseIX(pas2c(description),ix);
- end;
-
- PROCEDURE SetFilter(filter : pCxObj; text : string);
- begin
- SetFilter(filter,pas2c(text));
- end;
-
- {$endif}
-
- END. (* UNIT COMMODITIES *)
-
-
-
-