DIRECTORY
BasicTime, CubicSplines, FS, GGAlign, GGCaret, GGDescribe, GGDrawProcess, GGError, GGEvent, GGGravity, GGInterfaceTypes, GGModelTypes, GGObjects, GGRefresh, GGSegment, GGSelect, GGTouch, GGVector, GGWindow, Imager, ImagerInterpress, IO, Random, Real, Rope, Rosary, ViewerClasses, ViewerIO, ViewerOps, ViewerTools;

GGEventImplA: CEDAR PROGRAM
IMPORTS BasicTime, FS, GGAlign, GGCaret, GGDescribe, GGDrawProcess, GGError, GGGravity, GGObjects, GGRefresh, GGSegment, GGSelect, GGTouch, GGVector, GGWindow, Imager, ImagerInterpress, IO, Random, Real, Rope, Rosary, ViewerIO, ViewerOps, ViewerTools
EXPORTS GGEvent =
BEGIN

Cluster: TYPE = GGModelTypes.Cluster;
EntityGenerator: TYPE = GGModelTypes.EntityGenerator;
GargoyleData: TYPE = GGInterfaceTypes.GargoyleData;
Joint: TYPE = GGModelTypes.Joint;
JointGenerator: TYPE = GGModelTypes.JointGenerator;
Outline: TYPE = GGModelTypes.Outline;
Point: TYPE = GGModelTypes.Point;
ScalarButtonClient: TYPE = GGInterfaceTypes.ScalarButtonClient;
Segment: TYPE = GGModelTypes.Segment;
Sequence: TYPE = GGModelTypes.Sequence;
Traj: TYPE = GGModelTypes.Traj;
TrajGenerator: TYPE = GGModelTypes.TrajGenerator;
TwoState: TYPE = GGInterfaceTypes.TwoState;
SegmentGenerator: TYPE = GGModelTypes.SegmentGenerator;
SequenceGenerator: TYPE = GGModelTypes.SequenceGenerator;
Vector: TYPE = GGModelTypes.Vector;
Viewer: TYPE = ViewerClasses.Viewer;

Clear: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {};
Reset: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {};
Get: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {};
Store: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {};
Split: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {};
Interpress: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
ipRef: ImagerInterpress.Ref;
wdir, ipName, fullName: Rope.ROPE;
success: BOOL;
pixelsPerMeter: REAL _ 0.0254 / 72.0;
startTime: BasicTime.GMT;
endTime: BasicTime.GMT;
totalTime: INT;
msgRope: Rope.ROPE;
DoMakeInterpress: PROC [dc: Imager.Context] = {
Imager.ScaleT[dc, pixelsPerMeter];
GGRefresh.InterpressEntireScene[dc, gargoyleData];
};

ipName _ ViewerTools.GetSelectionContents[];
IF Rope.Length[ipName] = 0 THEN RETURN;
wdir _ gargoyleData.originalWorkingDirectory;
success _ TRUE;
[fullName,,] _ FS.ExpandName[ipName, wdir
! FS.Error => IF error.group = user THEN {
success _ FALSE;
CONTINUE;
}
];
IF NOT success THEN RETURN;
ipRef _ ImagerInterpress.Create[fullName];
msgRope _ IO.PutFR["Writing to interpress file: %g . . . ", [rope[fullName]]];
GGError.Append[msgRope, begin];
startTime _ BasicTime.Now[];
ImagerInterpress.DoPage[ipRef, DoMakeInterpress, 1.0];
ImagerInterpress.Close[ipRef];
endTime _ BasicTime.Now[];
totalTime _ BasicTime.Period[startTime, endTime];
msgRope _ IO.PutFR[" Done in time (%r)", [integer[totalTime]]];
GGError.Append[msgRope, end];
};




Delete: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
parentOutline: Outline;
entityGen: EntityGenerator;
entityGen _ GGSelect.SelectedEntities[gargoyleData, normal];
FOR entity: REF ANY _ GGObjects.NextEntity[entityGen], GGObjects.NextEntity[entityGen] UNTIL entity = NIL DO
GGSelect.DeselectEntity[entity, gargoyleData, normal];
GGSelect.DeselectEntity[entity, gargoyleData, copy];
GGSelect.DeselectEntity[entity, gargoyleData, hot];
GGSelect.DeselectEntity[entity, gargoyleData, active];
WITH entity SELECT FROM
cluster: Cluster => ERROR NotYetImplemented;
outline: Outline => {
GGObjects.DeleteOutline[gargoyleData.scene, outline];
GGTouch.OutlineDeleted[outline, gargoyleData];
};
seq: Sequence => {
parentOutline _ GGObjects.OutlineOfTraj[seq.traj];
IF GGObjects.HasHoles[parentOutline] THEN {
SELECT seq.traj.role FROM
hole => ERROR NotYetImplemented;
open => ERROR; -- impossible since the outline has holes
fence => {
GGError.Append["You can't delete the fence trajectory of an outline with holes.", oneLiner];
LOOP;
};
ENDCASE => ERROR;
}
ELSE {
IF seq.all THEN { -- the whole trajectory is selected
GGObjects.DeleteOutline[gargoyleData.scene, parentOutline];
GGTouch.OutlineDeleted[parentOutline, gargoyleData];
}
ELSE { -- part of a trajectory is selected.  Remove the parts in a sensible fashion.  This may require breaking up the trajectory into pieces.  Remove all of the pieces from touching lists.
IF seq.parts.rest # NIL OR (seq.parts.first.start # 0 AND seq.parts.first.end # GGObjects.HiJoint[seq.traj]) THEN {
GGError.Append["Deleting parts of trajectories is not implemented.", oneLiner];
GGError.Blink[];
}
ELSE {
IF seq.traj.role = fence THEN seq.traj.role _ open;
GGTouch.SequenceDeleted[seq, gargoyleData];
IF seq.parts.first.start = 0 THEN {
seq.traj.joints _ Rosary.Substr[seq.traj.joints, seq.parts.first.end];
seq.traj.segments _ Rosary.Substr[seq.traj.segments, seq.parts.first.end];
seq.traj.segCount _ seq.traj.segCount - (seq.parts.first.end-seq.parts.first.start);
}
ELSE {
seq.traj.joints _ Rosary.Substr[seq.traj.joints, 0, seq.parts.first.start + 1];
seq.traj.segments _ Rosary.Substr[seq.traj.segments, 0, seq.parts.first.start];
seq.traj.segCount _ seq.traj.segCount - (seq.parts.first.end-seq.parts.first.start);
}
};
};
};
};
ENDCASE => ERROR;
ENDLOOP;
GGWindow.Painter[$PaintEntireScene, gargoyleData];
};

SelectAll: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
GGSelect.DeselectAll[gargoyleData, normal];
GGSelect.SelectAll[gargoyleData, normal];
GGWindow.Painter[$PaintEntireScene, gargoyleData];
};

NotYetImplemented: PUBLIC SIGNAL = CODE;

SetStraight: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
seqGen: SequenceGenerator;
segmentGen: SegmentGenerator;
traj: Traj;
newSeg: Segment;
seqGen _ GGSelect.SelectedSequences[gargoyleData, normal];
FOR seq: Sequence _ GGObjects.NextSequence[seqGen], GGObjects.NextSequence[seqGen] UNTIL seq = NIL DO
segmentGen _ GGObjects.SegmentsInSequence[seq];
traj _ seq.traj;
FOR next: GGObjects.SegAndIndex _ GGObjects.NextSegmentAndIndex[segmentGen], GGObjects.NextSegmentAndIndex[segmentGen] UNTIL next.seg = NIL DO
newSeg _ GGSegment.MakeLine[next.seg.lo, next.seg.hi];
AddSegment[traj, newSeg, next];
ENDLOOP;
ENDLOOP;
GGWindow.Painter[$PaintEntireScene, gargoyleData];
};
SetArc: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
seqGen: SequenceGenerator;
segmentGen: SegmentGenerator;
traj: Traj;
newSeg: Segment;
p0, p1, p2: Point;
seqGen _ GGSelect.SelectedSequences[gargoyleData, normal];
FOR seq: Sequence _ GGObjects.NextSequence[seqGen], GGObjects.NextSequence[seqGen] UNTIL seq = NIL DO
segmentGen _ GGObjects.SegmentsInSequence[seq];
traj _ seq.traj;
FOR next: GGObjects.SegAndIndex _ GGObjects.NextSegmentAndIndex[segmentGen], GGObjects.NextSegmentAndIndex[segmentGen] UNTIL next.seg = NIL DO
p0 _ next.seg.lo;
p2 _ next.seg.hi;
p1 _ GetPt[p0, GGVector.Sub[p2,p0], GGVector.Distance[p0,p1]];
newSeg _ GGSegment.MakeArc[p0, p1, p2];
AddSegment[traj, newSeg, next];
ENDLOOP;
ENDLOOP;
GGWindow.Painter[$PaintEntireScene, gargoyleData];
};
SetConic: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
seqGen: SequenceGenerator;
segmentGen: SegmentGenerator;
traj: Traj;
newSeg: Segment;
p0, p1, p2: Point;
seqGen _ GGSelect.SelectedSequences[gargoyleData, normal];
FOR seq: Sequence _ GGObjects.NextSequence[seqGen], GGObjects.NextSequence[seqGen] UNTIL seq = NIL DO
segmentGen _ GGObjects.SegmentsInSequence[seq];
traj _ seq.traj;
FOR next: GGObjects.SegAndIndex _ GGObjects.NextSegmentAndIndex[segmentGen], GGObjects.NextSegmentAndIndex[segmentGen] UNTIL next.seg = NIL DO
p0 _ next.seg.lo;
p2 _ next.seg.hi;
p1 _ GetPt[p0, GGVector.Sub[p2,p0], GGVector.Distance[p0,p1]];
newSeg _ GGSegment.MakeConic[p0, p1, p2, 0.7];
AddSegment[traj, newSeg, next];
ENDLOOP;
ENDLOOP;
GGWindow.Painter[$PaintEntireScene, gargoyleData];
};
random: Random.RandomStream _ Random.Create[10000,0];
NewV: PROC RETURNS[REAL] = {RETURN[Random.NextInt[random]/10000.0]};
GetPt: PROC[p0, dir: Point, maxL: REAL] RETURNS [pt: Point] = {
scale1: REAL _ NewV[]*maxL;
angle: REAL _ 180*NewV[]-90;	--range -90..90
pt _ GGVector.Add[GGVector.Scale[GGVector.VectorPlusAngle[dir,angle], scale1], p0];
};
GetPtSequence: PROC[p0,p1: Point, n: NAT] RETURNS [CubicSplines.KnotSequence] ={
points: CubicSplines.KnotSequence _ NEW[CubicSplines.KnotSequenceRec[n+2]];
dir: Point _ GGVector.Sub[p1,p0];
inc: REAL _ GGVector.Distance[p0,p1]/(n-2);
maxL: REAL _ inc;
points[0] _ p0;
FOR i: NAT IN [1..points.length-1) DO
points[i] _ GetPt[p0, dir, maxL];
maxL _ maxL+inc;
ENDLOOP;
points[points.length-1] _ p1;
RETURN[points];
};

AddSegment: PROC[traj: Traj, newSeg: Segment, next: GGObjects.SegAndIndex] = {
traj.segments _ Rosary.Cat[ Rosary.Substr[traj.segments, 0, next.index], Rosary.FromItem[newSeg], Rosary.Substr[traj.segments, next.index+1, GGObjects.HiSegment[traj]-next.index] ];
};

SetBezier: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
seqGen: SequenceGenerator;
segmentGen: SegmentGenerator;
traj: Traj;
newSeg: Segment;
p0, p1, p2, p3: Point;
seqGen _ GGSelect.SelectedSequences[gargoyleData, normal];
FOR seq: Sequence _ GGObjects.NextSequence[seqGen], GGObjects.NextSequence[seqGen] UNTIL seq = NIL DO
segmentGen _ GGObjects.SegmentsInSequence[seq];
traj _ seq.traj;
FOR next: GGObjects.SegAndIndex _ GGObjects.NextSegmentAndIndex[segmentGen], GGObjects.NextSegmentAndIndex[segmentGen] UNTIL next.seg = NIL DO
length: REAL _ GGVector.Distance[next.seg.lo, next.seg.hi];
dir: Point _ GGVector.Sub[p3,p0];
p0 _ next.seg.lo;
p1 _ GetPt[p0, dir,length*0.7];
p2 _ GetPt[p0, dir,length];
p3 _ next.seg.hi;
newSeg _ GGSegment.MakeBezier[p0, p1, p2, p3];
AddSegment[traj, newSeg, next];
ENDLOOP;
ENDLOOP;
GGWindow.Painter[$PaintEntireScene, gargoyleData];
};
SetSpline: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
seqGen: SequenceGenerator;
segmentGen: SegmentGenerator;
traj: Traj;
newSeg: Segment;
seqGen _ GGSelect.SelectedSequences[gargoyleData, normal];
FOR seq: Sequence _ GGObjects.NextSequence[seqGen], GGObjects.NextSequence[seqGen] UNTIL seq = NIL DO
segmentGen _ GGObjects.SegmentsInSequence[seq];
traj _ seq.traj;
FOR next: GGObjects.SegAndIndex _ GGObjects.NextSegmentAndIndex[segmentGen], GGObjects.NextSegmentAndIndex[segmentGen] UNTIL next.seg = NIL DO
length: REAL _ GGVector.Distance[next.seg.lo, next.seg.hi];
type: CubicSplines.SplineType _ naturalAL;
nKnots: INT _ Real.RoundLI[10*NewV[]];
cps: CubicSplines.KnotSequence _ GetPtSequence[next.seg.lo, next.seg.hi, nKnots];
newSeg _ GGSegment.MakeCubicSpline[cps, type];
AddSegment[traj, newSeg, next];
ENDLOOP;
ENDLOOP;
GGWindow.Painter[$PaintEntireScene, gargoyleData];
};

Close: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
traj: Traj;
firstPoint, lastPoint: Point;
seg: Segment;
[traj,----,----,----,----] _ GGCaret.GetChair[gargoyleData.caret];
IF traj = NIL THEN {
GGError.Append["There is no caret trajectory to close.", oneLiner];
GGError.Blink[];
RETURN;
};
IF traj.role = fence OR traj.role = hole THEN {
GGError.Append["That trajectory is already closed.", oneLiner];
GGError.Blink[];
RETURN;
};
GGError.Append["The caret trajectory will be closed.", oneLiner];
firstPoint _ GGObjects.FetchJointPos[traj, 0];
lastPoint _ GGObjects.LastJointPos[traj];
seg _ GGSegment.MakeLine[lastPoint, firstPoint];
GGObjects.CloseWithSegment[traj, seg, lo];
GGObjects.SetFillColor[GGObjects.OutlineOfTraj[traj], Imager.MakeGray[0.5]];
GGWindow.Painter[$PaintEntireScene, gargoyleData];
};

ShowPoints: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
seqGen: SequenceGenerator _ GGSelect.SelectedSequences[gargoyleData, normal];
FOR seq: Sequence _ GGObjects.NextSequence[seqGen], GGObjects.NextSequence[seqGen] UNTIL seq = NIL DO
seq.traj.visibleJoints _ TRUE;
ENDLOOP;
};

HidePoints: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
seqGen: SequenceGenerator _ GGSelect.SelectedSequences[gargoyleData, normal];
FOR seq: Sequence _ GGObjects.NextSequence[seqGen], GGObjects.NextSequence[seqGen] UNTIL seq = NIL DO
seq.traj.visibleJoints _ FALSE;
ENDLOOP;
};

Refresh: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
GGWindow.Painter[$PaintEntireScene, gargoyleData];
};

DisableRefresh: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
gargoyleData.refresh.suppressRefresh _ TRUE;
};

EnableRefresh: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
gargoyleData.refresh.suppressRefresh _ FALSE;
};


TestGravity: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
xRandomStream, yRandomStream: Random.RandomStream;
testPoint: Point;
x, y: INT;
totalCount: NAT _ 0;
s: IO.STREAM;
resultPoint: Point;
feature: REF ANY;
countRope: Rope.ROPE;
environ: GGGravity.ObjectBag;
xRandomStream _ Random.Create[gargoyleData.actionArea.cw];
yRandomStream _ Random.Create[gargoyleData.actionArea.ch];
environ _ GGGravity.CreateObjectBag[];
GGAlign.AddItemsForAction[gargoyleData, environ, $SelectPoint];
IF environ = NIL THEN {
GGError.Append["Add some trajectories to test gravity.", oneLiner];
GGError.Blink[];
RETURN;
};
gargoyleData.hitTest.environ _ environ;
GGWindow.Painter[$PaintAlign, gargoyleData];
gargoyleData.hitTest.hitCount _ 0;
UNTIL totalCount > 1000 DO
IF gargoyleData.aborted THEN {
gargoyleData.aborted _ FALSE;
EXIT;
};
x _ Random.NextInt[xRandomStream];
y _ Random.NextInt[yRandomStream];
testPoint _ [x, y];
testPoint _ GGWindow.ScreenToWorld[testPoint, gargoyleData.camera];
gargoyleData.refresh.spotPoint _ testPoint;
[resultPoint, feature] _ GGGravity.Map[testPoint, gargoyleData.hitTest.tolerance, environ, gargoyleData];
IF feature # NIL THEN {
gargoyleData.refresh.hitPoint _ resultPoint;
GGWindow.Painter[$PaintHitLine, gargoyleData];
gargoyleData.hitTest.hitCount _ gargoyleData.hitTest.hitCount + 1;
}
ELSE {
GGWindow.Painter[$PaintSpot, gargoyleData];
};
totalCount _ totalCount + 1;
ENDLOOP;
s _ IO.ROS[];
s.PutF["Tested %g total points.  %g were hits", [integer[totalCount]], [integer[gargoyleData.hitTest.hitCount]]];
countRope _ IO.RopeFromROS[s];
GGError.Append[countRope, oneLiner];
};

DrawTouchPoints: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
GGWindow.Painter[$PaintTouchPoints, gargoyleData];
};
DescribeTouchPoints: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
GGTouch.DescribeAllTouchPoints[gargoyleData];
};
DrawBoundBoxes: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
GGWindow.Painter[$PaintBoundBoxes, gargoyleData];
};
DrawSelectionBox: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
GGWindow.Painter[$PaintSelectionBox, gargoyleData];
};
Typescript: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
newViewer: Viewer;
inHandle, outHandle: IO.STREAM;
[inHandle, outHandle, newViewer] _ MakeNewViewerAndHandle[];
GGError.SetErrorStream[outHandle];
gargoyleData.debug.typescript _ newViewer;
};

MakeNewViewerAndHandle: PRIVATE PROC [] RETURNS [in, out: IO.STREAM, newViewer: Viewer] = {
newViewer _ ViewerOps.CreateViewer[
flavor: $TypeScript,
info: [
name: "Gargoyle Script",
menu: NIL,
data: NIL,
iconic: TRUE,
column: right,
scrollable: TRUE,
icon: unInit
],
paint: FALSE];
ViewerOps.SetOpenHeight[newViewer, 120];
ViewerOps.OpenIcon[icon: newViewer, closeOthers: FALSE, bottom: TRUE, paint: TRUE];
[in, out] _ ViewerIO.CreateViewerStreams["gargoyle script", newViewer, NIL, TRUE];
};

SlackLog: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
GGDrawProcess.OutputLog[];
};

DescribeCaretObject: PUBLIC PROC [event: LIST OF REF ANY, gargoyleData: GargoyleData] = {
chair: Traj;
description, msgRope: Rope.ROPE;
isJoint: BOOL;
jointNum: NAT;
seg: Segment;
[chair, isJoint, ----, jointNum, seg] _ GGCaret.GetChair[gargoyleData.caret];
IF isJoint THEN {
description _ GGDescribe.DescribeJoint[chair, jointNum];
}
ELSE {
segNum: INT;
segNum _ GGObjects.IndexOfSegment[seg, chair];
IF segNum = -1 THEN description _ Rope.Concat["Nonexistent segment of ", GGDescribe.DescribeTraj[chair]]
ELSE description _ GGDescribe.DescribeSegment[chair, segNum];
};
msgRope _ IO.PutFR["Caret is on %g.", [rope[description]]];
GGError.Append[msgRope, oneLiner];
};

END.

ΨGGEventImplA.mesa
Last edited by Bier on October 1, 1985 8:58:32 pm PDT
Contents:  Once an event reaches the front of the slack-process queue, it is dispatched to one of the procedures in this module.
Stone, August 9, 1985 2:38:57 pm PDT


File Operations

TIMING VARIABLES
The Painting Call
START TIMING

Master Menu Line
Hierarchy Menu

Curve Menu
Choose a random p1:
Choose a random p near the line p0, p2:
Choose a random p1 and p2:
Choose a random number of knots and positions:

Edit Curve Menu

View Menu

Debug Menu
Within the bounds of the viewer, randomly choose mouse positions.  See if that mouse position is in range of any object.  If so, draw a dot at that point.  Repeat until 100 points have been drawn.

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