
<<IPImageImpl.mesa>>
<<>>
<<Last edited by:>>
<<Doug Wyatt, July 31, 1984 3:51:10 pm PDT>>

DIRECTORY
Imager -- USING most everything --,
ImagerBasic USING [State],
ImagerExtras USING [MakeSampledBlack, MakeSampledColor, MaskTrapezoidX, MaskTrapezoidY, Show, ShowAndXRel],
ImagerOps USING [DRound],
ImagerTransform USING [Contents, FromRec, TransformationRec],
IP USING [Any, AppearanceWarning, Apply, CheckInteger, Color, DoWithMarkProtection, FGet, GetIndex, ImagerVariable, Index, Integer, 
MasterError, Operator, Outline, Pair, PixelArray, PopBool, PopColor, PopInteger, PopOperator, PopOutline, PopPair, PopPixelArray, 
PopReal, PopTrajectory, PopTransformation, PopVector, PushColor, PushInteger, PushOutline, PushPair, PushPixelArray, PushReal, 
PushTrajectory, PushTransformation, PushVector, SetIndex, State, Trajectory, Transformation, Vector, VectorFromAny],
IPFont USING [FindFont, FindFontVec, FontFromVector, ModifyFont, VectorFromFont],
IPImage USING [];

IPImageImpl: CEDAR PROGRAM
IMPORTS Imager, ImagerExtras, ImagerOps, ImagerTransform, IP, IPFont
EXPORTS IPImage
~ BEGIN OPEN IP;

PopImagerVariable: PROC[self: State] RETURNS[ImagerVariable] ~ {
IVal: TYPE ~ [0..ImagerVariable.LAST.ORD];
i: Integer ~ PopInteger[self];
IF i IN IVal THEN RETURN[VAL[IVal[i]]]
ELSE { MasterError[$boundsFault, "Imager variable index out of bounds."]; ERROR };
};

ApplyIGET: PUBLIC PROC[self: State] ~ {
var: ImagerVariable ~ PopImagerVariable[self];
imager: Imager.Context ~ self.imager;
SELECT var FROM
$DCScpx => PushReal[self, ImagerOps.GetReal[imager, $DCScpx]];
$DCScpy => PushReal[self, ImagerOps.GetReal[imager, $DCScpy]];
$correctMX => PushReal[self, ImagerOps.GetReal[imager, $correctMX]];
$correctMY => PushReal[self, ImagerOps.GetReal[imager, $correctMY]];
$T => WITH ImagerOps.GetRef[imager, $T] SELECT FROM
t: Transformation => PushTransformation[self, t];
ENDCASE => MasterError[$bug, "Imager variable $T has wrong type."];
$priorityImportant => PushInteger[self, ImagerOps.GetInt[imager, $priorityImportant]];
$mediumXSize => PushReal[self, ImagerOps.GetReal[imager, $mediumXSize]];
$mediumYSize => PushReal[self, ImagerOps.GetReal[imager, $mediumYSize]];
$fieldXMin => PushReal[self, ImagerOps.GetReal[imager, $fieldXMin]];
$fieldYMin => PushReal[self, ImagerOps.GetReal[imager, $fieldYMin]];
$fieldXMax => PushReal[self, ImagerOps.GetReal[imager, $fieldXMax]];
$fieldYMax => PushReal[self, ImagerOps.GetReal[imager, $fieldYMax]];
$showVec => WITH ImagerOps.GetRef[imager, $showVec] SELECT FROM
font: FONT => PushVector[self, IPFont.VectorFromFont[font]];
ENDCASE => MasterError[$bug, "Imager variable $showVec has wrong type."];
$color => WITH ImagerOps.GetRef[imager, $color] SELECT FROM
color: Color => PushColor[self, color];
ENDCASE => MasterError[$bug, "Imager variable $color has wrong type."];
$noImage => PushInteger[self, ImagerOps.GetInt[imager, $noImage]];
$strokeWidth => PushReal[self, ImagerOps.GetReal[imager, $strokeWidth]];
$strokeEnd => PushInteger[self, ImagerOps.GetInt[imager, $strokeEnd]];
$underlineStart => PushReal[self, ImagerOps.GetReal[imager, $underlineStart]];
$amplifySpace => PushReal[self, ImagerOps.GetReal[imager, $amplifySpace]];
$correctPass => PushInteger[self, ImagerOps.GetInt[imager, $correctPass]];
$correctShrink => PushReal[self, ImagerOps.GetReal[imager, $correctShrink]];
$correctTX => PushReal[self, ImagerOps.GetReal[imager, $correctTX]];
$correctTY => PushReal[self, ImagerOps.GetReal[imager, $correctTY]];
<<$clipOutline => Push[self, state.clipOutline];>>
ENDCASE => ERROR;
};

ApplyISET: PUBLIC PROC[self: State] ~ {
var: ImagerVariable ~ PopImagerVariable[self];
imager: Imager.Context ~ self.imager;
SELECT var FROM
$DCScpx => ImagerOps.SetReal[imager, $DCScpx, PopReal[self]];
$DCScpy => ImagerOps.SetReal[imager, $DCScpy, PopReal[self]];
$correctMX => ImagerOps.SetReal[imager, $correctMX, PopReal[self]];
$correctMY => ImagerOps.SetReal[imager, $correctMY, PopReal[self]];
$T => ImagerOps.SetRef[imager, $T, PopTransformation[self]];
$priorityImportant => ImagerOps.SetInt[imager, $priorityImportant, PopInteger[self]];
$mediumXSize => ImagerOps.SetReal[imager, $mediumXSize, PopReal[self]];
$mediumYSize => ImagerOps.SetReal[imager, $mediumYSize, PopReal[self]];
$fieldXMin => ImagerOps.SetReal[imager, $fieldXMin, PopReal[self]];
$fieldYMin => ImagerOps.SetReal[imager, $fieldYMin, PopReal[self]];
$fieldXMax => ImagerOps.SetReal[imager, $fieldXMax, PopReal[self]];
$fieldYMax => ImagerOps.SetReal[imager, $fieldYMax, PopReal[self]];
$showVec => imager.SetFont[IPFont.FontFromVector[PopVector[self]]];
$color => imager.SetColor[PopColor[self]];
$noImage => ImagerOps.SetInt[imager, $noImage, PopInteger[self]];
$strokeWidth => ImagerOps.SetReal[imager, $strokeWidth, PopReal[self]];
$strokeEnd => ImagerOps.SetInt[imager, $strokeEnd, PopInteger[self]];
$underlineStart => ImagerOps.SetReal[imager, $underlineStart, PopReal[self]];
$amplifySpace => ImagerOps.SetReal[imager, $amplifySpace, PopReal[self]];
$correctPass => ImagerOps.SetInt[imager, $correctPass, PopInteger[self]];
$correctShrink => ImagerOps.SetReal[imager, $correctShrink, PopReal[self]];
$correctTX => ImagerOps.SetReal[imager, $correctTX, PopReal[self]];
$correctTY => ImagerOps.SetReal[imager, $correctTY, PopReal[self]];
<<clipOutline => ImagerOps.SetRef[imager, $clipOutline, Pop[self]];>>
ENDCASE => ERROR;
};

ApplyDROUND: PUBLIC PROC[self: State] ~ {
p: Pair ~ PopPair[self];
PushPair[self, ImagerOps.DRound[p]];
};

ApplyMAKET: PUBLIC PROC[self: State] ~ {
f: REAL ~ PopReal[self]; e: REAL ~ PopReal[self]; d: REAL ~ PopReal[self];
c: REAL ~ PopReal[self]; b: REAL ~ PopReal[self]; a: REAL ~ PopReal[self];
PushTransformation[self, Imager.MakeT[a, b, c, d, e, f]];
};
ApplyOPENT: PUBLIC PROC[self: State] ~ {
m: Transformation ~ PopTransformation[self];
PushReal[self, m.a]; PushReal[self, m.b]; PushReal[self, m.c];
PushReal[self, m.d]; PushReal[self, m.e]; PushReal[self, m.f];
};
ApplyTRANSLATE: PUBLIC PROC[self: State] ~ {
y: REAL ~ PopReal[self]; x: REAL ~ PopReal[self];
PushTransformation[self, Imager.Translate[x, y]];
};
ApplyROTATE: PUBLIC PROC[self: State] ~ {
a: REAL ~ PopReal[self];
PushTransformation[self, Imager.Rotate[a]];
};
ApplySCALE: PUBLIC PROC[self: State] ~ {
s: REAL ~ PopReal[self];
PushTransformation[self, Imager.Scale[s]];
};
ApplySCALE2: PUBLIC PROC[self: State] ~ {
sy: REAL ~ PopReal[self]; sx: REAL ~ PopReal[self];
PushTransformation[self, Imager.Scale2[sx, sy]];
};
ApplyCONCAT: PUBLIC PROC[self: State] ~ {
n: Transformation ~ PopTransformation[self];
m: Transformation ~ PopTransformation[self];
PushTransformation[self, Imager.Concat[m, n]];
};
ApplyINVERT: PUBLIC PROC[self: State] ~ {
m: Transformation ~ PopTransformation[self];
PushTransformation[self, Imager.Invert[m]];
};

ApplyTRANSFORM: PUBLIC PROC[self: State] ~ {
m: Transformation ~ PopTransformation[self];
p: Pair ~ PopPair[self];
PushPair[self, Imager.Transform[m, p]];
};
ApplyTRANSFORMVEC: PUBLIC PROC[self: State] ~ {
m: Transformation ~ PopTransformation[self];
v: Pair ~ PopPair[self];
PushPair[self, Imager.TransformVec[m, v]];
};
ApplyROUNDXY: PUBLIC PROC[self: State] ~ {
m: Transformation ~ PopTransformation[self];
p: Pair ~ PopPair[self];
PushPair[self, Imager.RoundXY[m, p]];
};
ApplyROUNDXYVEC: PUBLIC PROC[self: State] ~ {
m: Transformation ~ PopTransformation[self];
v: Pair ~ PopPair[self];
PushPair[self, Imager.RoundXYVec[m, v]];
};

ApplyCONCATT: PUBLIC PROC[self: State] ~ {
m: Transformation ~ PopTransformation[self];
Imager.ConcatT[self.imager, m];
};
ApplyMOVE: PUBLIC PROC[self: State] ~ {
Imager.Move[self.imager];
};
ApplyTRANS: PUBLIC PROC[self: State] ~ {
Imager.Trans[self.imager];
};

StringFromVector: PROC[v: Vector] RETURNS[REF TEXT] ~ {
IF v.class=$String THEN WITH v.data SELECT FROM
text: REF TEXT => RETURN[text]; ENDCASE;
RETURN[NIL];
};

ApplySHOW: PUBLIC PROC[self: State] ~ {
ImagerExtras.Show[self.imager, StringFromVector[PopVector[self]]];
};
ApplySHOWANDXREL: PUBLIC PROC[self: State] ~ {
ImagerExtras.ShowAndXRel[self.imager, StringFromVector[PopVector[self]]];
};

ApplySETXY: PUBLIC PROC[self: State] ~ {
Imager.SetXYP[self.imager, PopPair[self]];
};
ApplySETXYREL: PUBLIC PROC[self: State] ~ {
Imager.SetXYRelP[self.imager, PopPair[self]];
};
ApplySETXREL: PUBLIC PROC[self: State] ~ {
Imager.SetXRel[self.imager, PopReal[self]];
};
ApplySETYREL: PUBLIC PROC[self: State] ~ {
Imager.SetYRel[self.imager, PopReal[self]];
};
ApplyGETCP: PUBLIC PROC[self: State] ~ {
PushPair[self, Imager.GetCP[self.imager]];
};
ApplyGETCPROUNDED: PUBLIC PROC[self: State] ~ {
PushPair[self, Imager.GetCPRounded[self.imager]];
};

ApplyMAKEPIXELARRAY: PUBLIC PROC[self: State] ~ {
samples: Vector ~ PopVector[self];
m: Transformation ~ PopTransformation[self];
samplesInterleaved: BOOL ~ PopBool[self];
maxSampleValue: Integer ~ PopInteger[self];
samplesPerPixel: Integer ~ PopInteger[self];
yPixels: Integer ~ PopInteger[self];
xPixels: Integer ~ PopInteger[self];
<<PushPixelArray[self, Imager.MakePixelArray[xPixels: xPixels, yPixels: yPixels,>>
<<samplesPerPixel: samplesPerPixel, maxSampleValue: maxSampleValue,>>
<<samplesInterleaved: samplesInterleaved, m: m, samples: samples]];>>
MasterError[$unimplemented, "MAKEPIXELARRAY is not implemented."];
};
ApplyEXTRACTPIXELARRAY: PUBLIC PROC[self: State] ~ {
select: Vector ~ PopVector[self];
pa: PixelArray ~ PopPixelArray[self];
MasterError[$unimplemented, "EXTRACTPIXELARRAY is not implemented."];
PushPixelArray[self, pa];
};
ApplyFINDDECOMPRESSOR: PUBLIC PROC[self: State] ~ {
v: Vector ~ PopVector[self];
<<PushOperator[self, FindDecompressor[self, v]];>>
MasterError[$unimplemented, "FINDDECOMPRESSOR is not implemented."];
};

ApplyFINDCOLOR: PUBLIC PROC[self: State] ~ {
v: Vector ~ PopVector[self];
<<PushColor[self, FindColor[self, v]];>>
MasterError[$unimplemented, "FINDCOLOR is not implemented."];
};
ApplyFINDCOLOROPERATOR: PUBLIC PROC[self: State] ~ {
v: Vector ~ PopVector[self];
<<PushOperator[self, FindColorOperator[self, v]];>>
MasterError[$unimplemented, "FINDCOLOROPERATOR is not implemented."];
};
ApplyFINDCOLORMODELOPERATOR: PUBLIC PROC[self: State] ~ {
v: Vector ~ PopVector[self];
<<PushOperator[self, FindColorModelOperator[self, v]];>>
MasterError[$unimplemented, "FINDCOLORMODELOPERATOR is not implemented."];
};
ApplyMAKEGRAY: PUBLIC PROC[self: State] ~ {
f: REAL ~ PopReal[self];
PushColor[self, Imager.MakeGray[f]];
};
ApplyMAKESAMPLEDCOLOR: PUBLIC PROC[self: State] ~ {
colorOperator: Operator ~ PopOperator[self];
um: Transformation ~ PopTransformation[self];
pa: PixelArray ~ PopPixelArray[self];
PushColor[self, ImagerExtras.MakeSampledColor[pa, um, colorOperator]];
};
ApplyMAKESAMPLEDBLACK: PUBLIC PROC[self: State] ~ {
clear: BOOL ~ PopBool[self];
um: Transformation ~ PopTransformation[self];
pa: PixelArray ~ PopPixelArray[self];
PushColor[self, ImagerExtras.MakeSampledBlack[pa, um, clear]];
};
ApplySETGRAY: PUBLIC PROC[self: State] ~ {
f: REAL ~ PopReal[self];
Imager.SetColor[self.imager, Imager.MakeGray[f]];
};

ApplyMOVETO: PUBLIC PROC[self: State] ~ {
p: Pair ~ PopPair[self];
PushTrajectory[self, Imager.MoveTo[p]];
};
ApplyLINETO: PUBLIC PROC[self: State] ~ {
p: Pair ~ PopPair[self];
t: Trajectory ~ PopTrajectory[self];
PushTrajectory[self, Imager.LineTo[t, p]];
};
ApplyLINETOX: PUBLIC PROC[self: State] ~ {
x: REAL ~ PopReal[self];
t: Trajectory ~ PopTrajectory[self];
PushTrajectory[self, Imager.LineToX[t, x]];
};
ApplyLINETOY: PUBLIC PROC[self: State] ~ {
y: REAL ~ PopReal[self];
t: Trajectory ~ PopTrajectory[self];
PushTrajectory[self, Imager.LineToY[t, y]];
};
ApplyCURVETO: PUBLIC PROC[self: State] ~ {
p3: Pair ~ PopPair[self];
p2: Pair ~ PopPair[self];
p1: Pair ~ PopPair[self];
t: Trajectory ~ PopTrajectory[self];
PushTrajectory[self, Imager.CurveTo[t, p1, p2, p3]];
};
ApplyARCTO: PUBLIC PROC[self: State] ~ {
p2: Pair ~ PopPair[self];
p1: Pair ~ PopPair[self];
t: Trajectory ~ PopTrajectory[self];
PushTrajectory[self, Imager.ArcTo[t, p1, p2]];
};
ApplyCONICTO: PUBLIC PROC[self: State] ~ {
e: REAL ~ PopReal[self];
p2: Pair ~ PopPair[self];
p1: Pair ~ PopPair[self];
t: Trajectory ~ PopTrajectory[self];
PushTrajectory[self, Imager.ConicTo[t, p1, p2, e]];
};
ApplyMAKEOUTLINE: PUBLIC PROC[self: State] ~ {
n: Integer ~ PopInteger[self];
list: LIST OF Trajectory _ NIL;
THROUGH [0..n) DO list _ CONS[PopTrajectory[self], list] ENDLOOP;
PushOutline[self, Imager.MakeOutline[list]];
};

ApplyMASKFILL: PUBLIC PROC[self: State] ~ {
o: Outline ~ PopOutline[self];
Imager.MaskFill[self.imager, o];
};
ApplyMASKSTROKE: PUBLIC PROC[self: State] ~ {
t: Trajectory ~ PopTrajectory[self];
Imager.MaskStroke[self.imager, t];
};
ApplyMASKSTROKECLOSED: PUBLIC PROC[self: State] ~ {
t: Trajectory ~ PopTrajectory[self];
Imager.MaskStrokeClosed[self.imager, t];
};
ApplyMASKRECTANGLE: PUBLIC PROC[self: State] ~ {
h: REAL ~ PopReal[self]; w: REAL ~ PopReal[self];
y: REAL ~ PopReal[self]; x: REAL ~ PopReal[self];
Imager.MaskRectangle[self.imager, x, y, w, h];
};
ApplyMASKVECTOR: PUBLIC PROC[self: State] ~ {
p2: Pair ~ PopPair[self];
p1: Pair ~ PopPair[self];
Imager.MaskVector[self.imager, p1, p2];
};
ApplySTARTUNDERLINE: PUBLIC PROC[self: State] ~ {
Imager.StartUnderline[self.imager];
};
ApplyMASKUNDERLINE: PUBLIC PROC[self: State] ~ {
h: REAL ~ PopReal[self]; dy: REAL ~ PopReal[self];
Imager.MaskUnderline[self.imager, dy, h];
};
ApplyMASKTRAPEZOIDX: PUBLIC PROC[self: State] ~ {
x4: REAL ~ PopReal[self]; y3: REAL ~ PopReal[self]; x3: REAL ~ PopReal[self];
x2: REAL ~ PopReal[self]; y1: REAL ~ PopReal[self]; x1: REAL ~ PopReal[self];
ImagerExtras.MaskTrapezoidX[self.imager, x1, y1, x2, x3, y3, x4];
};
ApplyMASKTRAPEZOIDY: PUBLIC PROC[self: State] ~ {
y4: REAL ~ PopReal[self]; y3: REAL ~ PopReal[self]; x3: REAL ~ PopReal[self];
y2: REAL ~ PopReal[self]; y1: REAL ~ PopReal[self]; x1: REAL ~ PopReal[self];
ImagerExtras.MaskTrapezoidY[self.imager, x1, y1, y2, x3, y3, y4];
};
ApplyMASKPIXEL: PUBLIC PROC[self: State] ~ {
pa: PixelArray ~ PopPixelArray[self];
Imager.MaskPixel[self.imager, pa];
};
ApplyCLIPOUTLINE: PUBLIC PROC[self: State] ~ {
o: Outline ~ PopOutline[self];
Imager.ClipOutline[self.imager, o];
};
ApplyCLIPRECTANGLE: PUBLIC PROC[self: State] ~ {
h: REAL ~ PopReal[self]; w: REAL ~ PopReal[self];
y: REAL ~ PopReal[self]; x: REAL ~ PopReal[self];
Imager.ClipRectangle[self.imager, x, y, w, h];
};

ApplyFINDFONT: PUBLIC PROC[self: State] ~ {
v: Vector ~ PopVector[self];
PushVector[self, IPFont.FindFont[self, v]];
};
ApplyFINDFONTVEC: PUBLIC PROC[self: State] ~ {
v: Vector ~ PopVector[self];
PushVector[self, IPFont.FindFontVec[self, v]];
};
ApplyMODIFYFONT: PUBLIC PROC[self: State] ~ {
m: Transformation ~ PopTransformation[self];
v: Vector ~ PopVector[self];
PushVector[self, IPFont.ModifyFont[v, m]];
};
ApplySETFONT: PUBLIC PROC[self: State] ~ {
state: ImagerBasic.State ~ self.imager.state;
n: Integer ~ PopInteger[self];
state.showVec _ IPFont.FontFromVector[VectorFromAny[FGet[self, n]]];
};

ApplyCORRECTMASK: PUBLIC PROC[self: State] ~ {
Imager.CorrectMask[self.imager];
};
ApplyCORRECTSPACE: PUBLIC PROC[self: State] ~ {
Imager.CorrectSpace[self.imager, PopPair[self]];
};
ApplyCORRECT: PUBLIC PROC[self: State] ~ {
b: Index ~ GetIndex[self];
innerBody: PROC[self: State] ~ { SetIndex[self, b]; Apply[self, $dosavesimplebody] };
body: PROC ~ { [] _ DoWithMarkProtection[self, innerBody] };
Imager.Correct[self.imager, body
! Imager.Error =>
IF errorCode=$UnableToProperlyAdjustMaskPositions THEN {
AppearanceWarning[$correctFailed,
"CORRECT failed to achieve target position within tolerance."];
CONTINUE;
};
];
};
ApplySETCORRECTMEASURE: PUBLIC PROC[self: State] ~ {
Imager.SetCorrectMeasure[self.imager, PopPair[self]];
};
ApplySETCORRECTTOLERANCE: PUBLIC PROC[self: State] ~ {
Imager.SetCorrectTolerance[self.imager, PopPair[self]];
};
ApplySPACE: PUBLIC PROC[self: State] ~ {
Imager.Space[self.imager, PopReal[self]];
};

END.