Copyright (C) 1994, Digital Equipment Corp.
Digital Internal Use Only
Created on Sat Mar 5 20:42:30 PST 1994 by najork
MODULE ObRootGO;
IMPORT ObAux, ObBooleanProp, ObCameraGO, ObColorProp, ObCommand, ObGO,
ObGraphicsBase, ObGroupGO, ObLib, ObProp, ObProtoLoader, ObRealProp,
ObValue, Obliq, ProxiedObj, RootGO, RootGOProxy, SynLocation;
CONST
pkgname = "RootGO";
***************************************************************************
Wrapper for RootGO.T
***************************************************************************
TYPE
T = ObGroupGO.T BRANDED "ObRootGO.T" OBJECT END;
PROCEDURE AddTObj (root : RootGO.T) =
<* FATAL ObValue.Error, ObValue.Exception *>
BEGIN
WITH obj = Obliq.ObjectClone (Obliq.Vals {TProto}),
raw = NEW (T, what := "<a RootGO.T>", po := root) DO
Obliq.ObjectUpdate (obj, "raw", raw);
root.proxy := NEW (ProxiedObj.Proxy, obj := obj);
END;
END AddTObj;
PROCEDURE GetArg (args : ObValue.ArgArray;
idx : INTEGER;
package : ObLib.T;
opCode : ObLib.OpCode;
loc : SynLocation.T) : RootGO.T
RAISES {ObValue.Error, ObValue.Exception} =
BEGIN
WITH raw = Obliq.ObjectSelect (args[idx], "raw") DO
TYPECASE raw OF
| T (node) =>
RETURN node.po;
ELSE
ObValue.BadArgType (idx, pkgname, package.name, opCode.name, loc);
RETURN NIL; (* ... only to suppress compiler warning *)
END;
END;
END GetArg;
***************************************************************************
Setup procedures
***************************************************************************
PROCEDURE SetupPackage () =
PROCEDURE NewOpCode (name : TEXT; arity : INTEGER; code : Code) : OpCode =
BEGIN
RETURN NEW (OpCode, name := name, arity := arity, code := code);
END NewOpCode;
TYPE
OpCodes = ARRAY OF ObLib.OpCode;
VAR
opCodes: REF OpCodes;
BEGIN
opCodes := NEW (REF OpCodes, NUMBER (Code));
opCodes^ :=
OpCodes {
NewOpCode ("New", 2, Code.New),
NewOpCode ("NewStd", 0, Code.NewStd),
NewOpCode ("NewStdWithBase", 1, Code.NewStdWithBase),
NewOpCode ("ChangeCamera", 2, Code.ChangeCamera),
NewOpCode ("Background", -1, Code.Background),
NewOpCode ("DepthcueSwitch", -1, Code.DepthcueSwitch),
NewOpCode ("DepthcueColor", -1, Code.DepthcueColor),
NewOpCode ("DepthcueFrontPlane", -1, Code.DepthcueFrontPlane),
NewOpCode ("DepthcueBackPlane", -1, Code.DepthcueBackPlane),
NewOpCode ("DepthcueFrontScale", -1, Code.DepthcueFrontScale),
NewOpCode ("DepthcueBackScale", -1, Code.DepthcueBackScale),
NewOpCode ("SetBackground", 2, Code.SetBackground),
NewOpCode ("SetDepthcueSwitch", 2, Code.SetDepthcueSwitch),
NewOpCode ("SetDepthcueColor", 2, Code.SetDepthcueColor),
NewOpCode ("SetDepthcueFrontPlane", 2, Code.SetDepthcueFrontPlane),
NewOpCode ("SetDepthcueBackPlane", 2, Code.SetDepthcueBackPlane),
NewOpCode ("SetDepthcueFrontScale", 2, Code.SetDepthcueFrontScale),
NewOpCode ("SetDepthcueBackScale", 2, Code.SetDepthcueBackScale)
};
ObLib.Register (NEW (Package, name := pkgname, opCodes := opCodes));
ObLib.RegisterHelp (pkgname, Help);
END SetupPackage;
VAR
TProto : ObValue.Val;
PROCEDURE SetupModule (loader : ObProtoLoader.T) =
BEGIN
(*** Retrieve the prototype ***)
loader.load ("RootGO.obl");
TProto := loader.get ("RootGO_TProto");
(*** Register the proxy maker ***)
RootGOProxy.MkProxyT := AddTObj;
END SetupModule;
***************************************************************************
Execution machinery
***************************************************************************
TYPE
Code = {ChangeCamera, New, NewStd, NewStdWithBase,
Background, DepthcueSwitch, DepthcueColor, DepthcueFrontPlane,
DepthcueBackPlane, DepthcueFrontScale, DepthcueBackScale,
SetBackground, SetDepthcueSwitch, SetDepthcueColor,
SetDepthcueFrontPlane, SetDepthcueBackPlane, SetDepthcueFrontScale,
SetDepthcueBackScale};
OpCode = ObLib.OpCode OBJECT
code: Code;
END;
Package = ObLib.T OBJECT
OVERRIDES
Eval := DoEval;
END;
PROCEDURE DoEval (self : Package;
opCode : ObLib.OpCode;
<* UNUSED *> arity : ObLib.OpArity;
READONLY args: ObValue.ArgArray;
<* UNUSED *> temp : BOOLEAN;
loc : SynLocation.T) : ObValue.Val
RAISES {ObValue.Error, ObValue.Exception} =
BEGIN
CASE NARROW (opCode, OpCode).code OF
| Code.New =>
WITH cam = ObCameraGO.GetArg (args, 1, self, opCode, loc),
base = ObGraphicsBase.GetArg (args, 2, self, opCode, loc),
root = RootGO.New (cam, base) DO
RETURN root.proxy.obj;
END;
| Code.NewStd =>
WITH root = RootGO.NewStd () DO
RETURN root.proxy.obj;
END;
| Code.NewStdWithBase =>
WITH base = ObGraphicsBase.GetArg (args, 1, self, opCode, loc),
root = RootGO.NewStd (base) DO
RETURN root.proxy.obj;
END;
| Code.ChangeCamera =>
WITH root = GetArg (args, 1, self, opCode, loc),
cam = ObCameraGO.GetArg (args, 2, self, opCode, loc) DO
root.changeCamera (cam);
RETURN ObValue.valOk;
END;
| Code.Background =>
RETURN ObProp.NameToObliq (RootGO.Background);
| Code.SetBackground =>
WITH go = ObGO.GetArg (args, 1, self, opCode, loc),
pv = ObColorProp.GetOverloadedVal (args, 2, self, opCode, loc) DO
go.setProp (RootGO.Background.bind (pv));
RETURN ObValue.valOk;
END;
| Code.DepthcueSwitch =>
RETURN ObProp.NameToObliq (RootGO.DepthcueSwitch);
| Code.SetDepthcueSwitch =>
WITH go = ObGO.GetArg (args, 1, self, opCode, loc),
pv = ObBooleanProp.GetOverloadedVal(args, 2, self, opCode, loc) DO
go.setProp (RootGO.DepthcueSwitch.bind (pv));
RETURN ObValue.valOk;
END;
| Code.DepthcueColor =>
RETURN ObProp.NameToObliq (RootGO.DepthcueColour);
| Code.SetDepthcueColor =>
WITH go = ObGO.GetArg (args, 1, self, opCode, loc),
pv = ObColorProp.GetOverloadedVal (args, 2, self, opCode, loc) DO
go.setProp (RootGO.DepthcueColour.bind (pv));
RETURN ObValue.valOk;
END;
| Code.DepthcueFrontPlane =>
RETURN ObProp.NameToObliq (RootGO.DepthcueFrontPlane);
| Code.SetDepthcueFrontPlane =>
WITH go = ObGO.GetArg (args, 1, self, opCode, loc),
pv = ObRealProp.GetOverloadedVal (args, 2, self, opCode, loc) DO
go.setProp (RootGO.DepthcueFrontPlane.bind (pv));
RETURN ObValue.valOk;
END;
| Code.DepthcueBackPlane =>
RETURN ObProp.NameToObliq (RootGO.DepthcueBackPlane);
| Code.SetDepthcueBackPlane =>
WITH go = ObGO.GetArg (args, 1, self, opCode, loc),
pv = ObRealProp.GetOverloadedVal (args, 2, self, opCode, loc) DO
go.setProp (RootGO.DepthcueBackPlane.bind (pv));
RETURN ObValue.valOk;
END;
| Code.DepthcueFrontScale =>
RETURN ObProp.NameToObliq (RootGO.DepthcueFrontScale);
| Code.SetDepthcueFrontScale =>
WITH go = ObGO.GetArg (args, 1, self, opCode, loc),
pv = ObRealProp.GetOverloadedVal (args, 2, self, opCode, loc) DO
go.setProp (RootGO.DepthcueFrontScale.bind (pv));
RETURN ObValue.valOk;
END;
| Code.DepthcueBackScale =>
RETURN ObProp.NameToObliq (RootGO.DepthcueBackScale);
| Code.SetDepthcueBackScale =>
WITH go = ObGO.GetArg (args, 1, self, opCode, loc),
pv = ObRealProp.GetOverloadedVal (args, 2, self, opCode, loc) DO
go.setProp (RootGO.DepthcueBackScale.bind (pv));
RETURN ObValue.valOk;
END;
END;
END DoEval;
***************************************************************************
Help
***************************************************************************
PROCEDURE Help (self : ObCommand.T; arg : TEXT; <* UNUSED *> data : REFANY) =
BEGIN
ObAux.Help (self, arg, pkgname);
END Help;
BEGIN
END ObRootGO.