<> <> <> <> DIRECTORY D2Basic USING [Number, Pos, Rect], Imager USING [Context, Color], List USING [AList], MBQueue USING [Queue], RefTab USING [Ref], Rope USING [ROPE], SymTab USING [Ref]; CD: CEDAR DEFINITIONS = <<--CD stands for ChipNDale, >> BEGIN <<-- measures>> <<-- independent of coordinate system>> Number: TYPE = D2Basic.Number; Position: TYPE = D2Basic.Pos; -- RECORD [x, y: Number]; Rect: TYPE = D2Basic.Rect; -- RECORD [x1, y1, x2, y2: Number]; <<--A Rect is called normalized if (x1>x2) OR (y1>y2) means that the Rect is empty.>> <<--Rects are normalized, except if a special comment denies. >> <<--Rect's are closed: they include all the endpoints; as you expect, points have >> <<--size 0; except if a special comment denies.>> lambda: Number = 2; <<--your program must not depend on the value of lambda>> <<>> Orientation: TYPE = [0..7] _ 0; <<--Module CDOrient exports all you probably need about Orientations;>> <<--If your program depends on the representation of Orientation, it>> <<--is probably wrong.>> original: Orientation = 0; <<-- Errors>> Error: ERROR [ec: ErrorCode _ programmingError, explanation: Rope.ROPE _ NIL]; ErrorCode: TYPE = {programmingError, callingError, noResource, doubleRegistration, missingRegistration, other}; <<-- properties>> Properties: TYPE = List.AList; <<--friendly use expected: don't assign properties without first register >> <<--their names with CDProperties.>> <<--use only CDProperties to access Properties>> <<-- layers>> layerNum: NAT = 256; Layer: TYPE = [0..layerNum); combined: Layer = 0; -- layer used for object containing different or unknown Layers highLightShade: Layer = 1; -- visualization; not for generating masks highLightError: Layer = 2; -- visualization; not for generating masks backGround: Layer = 3; -- special pushed-in backGround; not for generating masks NewLayer: PROC [technology: Technology, uniqueKey: ATOM] RETURNS [Layer]; <<--may raise Error[noResource] and others>> <<--the technolgy implementation must guarantee for uniqueness of uniqueKey's>> <<-- (unique only for the technology)>> FetchLayer: PROC [t: Technology, uniqueKey: ATOM] RETURNS [Layer]; LayerTechnology: PROC [l: Layer] RETURNS [Technology]; LayerKey: PROC [l: Layer] RETURNS [ATOM]; <<--object, cells, instances>> markNum: NAT = 256; Object: TYPE = REF ObjectRep; <<--Objects are the main things in ChipNDale>> <<--Objects must draw the same way independant of their environment>> ObjectRep: TYPE = RECORD [ class: REF --READONLY-- ObjectClass, -- never modify class nor class^ size: Position _ [lambda, lambda], layer: Layer _ combined, marked: [0..markNum) _ 0, --only objects with inDirectory are not shared through designs specificRef: REF ANY _ NIL, properties: Properties _ NIL -- see warning ]; <<--Several instances may point to same object: consider on modifications.>> <<--Some implementors of object-classes share the bits of different ObjectRep's>> <<--(therefore usage of properties of Objects not in the directory is restricted to >> <<--the object class implentor.)>> CellPtr: TYPE = REF CellRep; CellRep: TYPE = RECORD [ contents: InstanceList _ NIL, ir: Rect _ [0, 0, -1, -1], --actual interest rect dIr: Rect _ [0, 0, -1, -1], --default value for interest rect name: Rope.ROPE _ NIL, simplifyOn: NAT _ LAST[NAT], useDIr: BOOL _ TRUE, --should use the default for interest rect origin: Position _ [0, 0] ]; RectPtr: TYPE = REF RectRep; RectRep: TYPE = RECORD [filler: PRIVATE REF]; InstanceList: TYPE = LIST OF Instance_NIL; Instance: TYPE = REF InstanceRep; InstanceRep: TYPE = RECORD [ ob: Object, location: Position _ [0, 0], --in cd-coords orientation: Orientation _ 0, selected: BOOL _ FALSE, reserved: BOOL _ FALSE, properties: Properties _ NIL ]; ObjectClass: TYPE = RECORD [ -- generic procedures for an object quickDrawMe: DrawProc, drawMe: DrawProc, showMeSelected: DrawProc, hitInside: HitInsideProc, interestRect: RectProc, oldInsideRect: RectProc, technology: Technology, -- NIL on technology independent stuff objectType: ATOM, inDirectory: BOOL, -- if inDirectory then included in directory; <<-- all object classes which have children must be in the directory>> directoryProcs: REF _ NIL, wireTyped: BOOL _ FALSE, -- if wiretyped then insideRect.y corresponds length symbolic: BOOL _ FALSE, reservedForCDEnvironment: BOOL _ FALSE, reserved: BOOL _ FALSE, internalWrite: InternalWriteProc, internalRead: InternalReadProc, description: Rope.ROPE _ NIL, describe: DescribeProc _ NIL, describeInst: DescribeInstProc _ NIL, origin: PosProc _ NIL, further: PRIVATE RefTab.Ref, properties: Properties _ NIL ]; DrawProc: TYPE = PROC [inst: Instance, pos: Position, orient: Orientation, pr: REF DrawInformation]; <<--ignores inst.location and inst.orientation, may use inst.properties>> HitInsideProc: TYPE = PROC [ob: Object, hitRect: Rect] RETURNS [BOOL]; PosProc: TYPE = PROC [ob: Object] RETURNS [Position]; RectProc: TYPE = PROC [ob: Object] RETURNS [Rect]; BoolProc: TYPE = PROC [ob: Object] RETURNS [BOOL]; InternalWriteProc: TYPE = PROC [me: Object]; InternalReadProc: TYPE = PROC [] RETURNS [Object]; DescribeProc: TYPE = PROC [me: Object] RETURNS [Rope.ROPE]; DescribeInstProc: TYPE = PROC [ap: Instance] RETURNS [Rope.ROPE]; DrawContextProc: TYPE = PROC [pr: DrawRef, proc: DrawContextLayerProc, ob: Object, pos: Position, orient: Orientation, layer: Layer]; DrawContextLayerProc: TYPE = PROC [context: Imager.Context, ob: Object, layer: Layer]; RegisterObjectClass: PROC [objectType: ATOM, technology: Technology_NIL] RETURNS [REF ObjectClass]; <<--may raise Error[doubleRegistration] and others>> <<--Also initializes procedures with default values >> <<--An object type may be used either in arbitrary technology or technology-independent.>> <<--This should be the only way to create data of type ObjectProcsRec>> FetchObjectClass: PROC [objectType: REF, technology: Technology_NIL] RETURNS [REF --READONLY-- ObjectClass]; <<--may raise Error[missingRegistration] >> <<--consider ObjectClass as readonly if you are not the implementor of the object type >> <<-- Design>> PushRec: TYPE = RECORD [ dummyCell: Instance, <> mightReplace: Instance_NIL, specific: CellPtr, -- cache of dummyCell.ob.specificRef changed: BOOL_FALSE, indirectlyChanged: BOOL_FALSE, deletedList: REF_NIL ]; Design: TYPE = REF DesignRec; DesignRec: TYPE = RECORD [ -- use only CDOps.CreateDesign to create record actual: LIST OF PushRec, -- actual.first is most deeply pushed cell; cellDirectory: PRIVATE CellTableRef, -- pushed cells are copied and not part of the cellDirectory name: Rope.ROPE_NIL, technology: Technology_NIL, designValues: DesignValues_NIL, --CDValue queue: MBQueue.Queue, seqPrivate: SequencerRef, properties: Properties_NIL <<--CDValue supports more fields >> ]; SequencerRef: TYPE = REF SequencerDesignPrivate; SequencerDesignPrivate: TYPE; CellTableRef: PRIVATE TYPE = SymTab.Ref; DesignValues: TYPE = REF DesignValuesRep; --CDValue DesignValuesRep: TYPE; --CDValue <<-- Technology>> <<>> Technology: TYPE = REF TechnologyRep; TechnologyRep: TYPE = RECORD [ -- use RegisterTechnology to create record key: ATOM _ NIL, name: Rope.ROPE _ NIL, technologyPrivate: PRIVATE TechnologyPrivate, technologyValues: TechnologyValues, --CDValue technologyCommands: TechnologyCommands, --CDSequencer usedLayers: LIST OF Layer, -- without constant Layers defined in CD properties: Properties_NIL <<--CDValue supports more fields>> ]; TechnologyValues: TYPE = REF TechnologyValuesRep; --CDValue TechnologyCommands: TYPE = REF TechnologyCommandsRep; --CDSequencer TechnologyPrivate: TYPE = PRIVATE REF TechnologyPrivateRep; TechnologyValuesRep: TYPE; --CDValue TechnologyCommandsRep: TYPE; --CDSequencer TechnologyPrivateRep: TYPE; RegisterTechnology: PROC [key: ATOM, name: Rope.ROPE_NIL] RETURNS [Technology]; <<--This must be the only way to create data of type TechnologyRep>> <<--may raise Error[doubleRegistration] and others>> FetchTechnology: PROC [key: ATOM] RETURNS [Technology]; <<--may raise Error[missingRegistration] and others>> <<>> EnumerateTechnologies: PROC [proc: TechnologyEnumerator] RETURNS [quit: BOOL]; TechnologyEnumerator: TYPE = PROC[tech: CD.Technology] RETURNS [quit: BOOL_FALSE]; <<>> <<-- drawing>> DrawRef: TYPE = REF DrawInformation; DrawInformation: TYPE = RECORD [ interestClip: Rect, -- (interrest area; not device area), in doubt is larger; minimalSize: Number, -- if xyz> <<--separately initialized (including viewerSave for viewers). >> ViewerPrivate: TYPE = REF ViewerPrivateRep; ViewerPrivateRep: TYPE; DrawRectProc: TYPE = PROC [r: Rect, l: Layer, pr: DrawRef]; DrawOutLineProc: TYPE = PROC [r: Rect, pr: DrawRef]; DrawCommentProc: TYPE = PROC [r: Rect, comment: Rope.ROPE, pr: DrawRef]; SetGroundProc: TYPE = PROC [pr: DrawRef, pushedOut: BOOL]; ContextFilter: TYPE = ARRAY Layer OF RECORD [ doit: BOOL, color: Imager.Color ]; CreateDrawRef: PROC [design: Design, deviceContext: Imager.Context_NIL] RETURNS [DrawRef]; <<--for conveniance; assigns usefull null procedures and default values,>> <<--including sufficiently large nesting sequence.>> InterestRect: PROC [ob: Object] RETURNS [r: Rect] = INLINE { <<--Returns the interest rect in objects internal cd coords>> RETURN [ob.class.interestRect[ob]] }; ClientOrigin: PROC [ob: Object] RETURNS [pos: Position] = INLINE { <<--Returns the position of the client's object origin in objects internal cd coords>> RETURN [ob.class.origin[ob]] }; END.