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NX_CtlPoints
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ControlPoint.m
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1995-06-12
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/*
* (a) (C) 1990 by Adobe Systems Incorporated. All rights reserved.
*
* (b) If this Sample Code is distributed as part of the Display PostScript
* System Software Development Kit from Adobe Systems Incorporated,
* then this copy is designated as Development Software and its use is
* subject to the terms of the License Agreement attached to such Kit.
*
* (c) If this Sample Code is distributed independently, then the following
* terms apply:
*
* (d) This file may be freely copied and redistributed as long as:
* 1) Parts (a), (d), (e) and (f) continue to be included in the file,
* 2) If the file has been modified in any way, a notice of such
* modification is conspicuously indicated.
*
* (e) PostScript, Display PostScript, and Adobe are registered trademarks of
* Adobe Systems Incorporated.
*
* (f) THE INFORMATION BELOW IS FURNISHED AS IS, IS SUBJECT TO
* CHANGE WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED
* AS A COMMITMENT BY ADOBE SYSTEMS INCORPORATED.
* ADOBE SYSTEMS INCORPORATED ASSUMES NO RESPONSIBILITY
* OR LIABILITY FOR ANY ERRORS OR INACCURACIES, MAKES NO
* WARRANTY OF ANY KIND (EXPRESS, IMPLIED OR STATUTORY)
* WITH RESPECT TO THIS INFORMATION, AND EXPRESSLY
* DISCLAIMS ANY AND ALL WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR PARTICULAR PURPOSES AND NONINFRINGEMENT
* OF THIRD PARTY RIGHTS.
*/
/*
* ControlPoint.m
* This file handles the particulars for the control point.
*
* Version: 2.0
* Author: Ken Fromm
* History:
* 03-07-91 Added this comment.
*/
#import "ControlPoint.h"
#import "ControlView.h"
#import "ControlPointWraps.h"
#import "ControlViewWraps.h"
#import <appkit/View.h>
#import <appkit/nextstd.h>
#import <dpsclient/dpsclient.h>
#import <dpsclient/wraps.h>
static char fontname[ ] = "ControlPointsFont";
/* The point arrays below have the number of points in the array as the first entry
* followed by the points. The op arrays have the number of ops in the array
* as the first entry followed by the operators.
*/
static float ptsRectfill[] = {8, -2, -2, 0, 4, 4, 0, 0, -4};
static char opsRectfill[] = {5, dps_rmoveto, dps_rlineto, dps_rlineto, dps_rlineto,
dps_closepath};
static float ptsRectstroke[] = {8, -2, -2, 0, 4, 4, 0, 0, -4};
static char opsRectstroke[] = {5, dps_rmoveto, dps_rlineto, dps_rlineto, dps_rlineto,
dps_closepath};
static float ptsX[] = {8, -2, -2, 4, 4, 0, -4, -4, 4};
static char opsX[] = {4, dps_rmoveto, dps_rlineto, dps_rmoveto, dps_rlineto};
static float ptsCross[] = {8, 0, 2, 0, -4, -2, 2, 4, 0};
static char opsCross[] = {4, dps_rmoveto, dps_rlineto, dps_rmoveto, dps_rlineto};
@implementation ControlPoint
- setControlView:anObject
{
controlView = anObject;
PSWDefsContPts ();
PSWSetDependent();
PSWDefineFont(fontname);
[self setRectfill:self];
return self;
}
/* These four methods set the values for drawing a type of control point. */
- setRectfill:sender
{
fontchar = 'a';
basicProc = "BRF";
basicOp = "fill";
userPtsArray = ptsRectfill;
userOpsArray = opsRectfill;
userOp = "ufill";
rectOp = "rectfill";
[controlView setButtonTitle:FILL];
[controlView setButtonEnable:YES];
[controlView eraseTimes:self];
return self;
}
- setRectstroke:sender
{
fontchar = 'b';
basicProc = "BRS";
basicOp = "stroke";
userPtsArray = ptsRectstroke;
userOpsArray = opsRectstroke;
userOp = "ustroke";
rectOp = "rectstroke";
[controlView setButtonTitle:STROKE];
[controlView setButtonEnable:YES];
[controlView eraseTimes:self];
return self;
}
- setX:sender
{
fontchar = 'c';
basicProc = "BX";
basicOp = "stroke";
userPtsArray = ptsX;
userOpsArray = opsX;
userOp = "ustroke";
rectOp = "pop";
[controlView setButtonTitle:STROKE];
[controlView setButtonEnable:NO];
[controlView eraseTimes:self];
return self;
}
- setCross:sender
{
fontchar = 'd';
basicProc = "BC";
basicOp = "stroke";
userPtsArray = ptsCross;
userOpsArray = opsCross;
userOp = "ustroke";
rectOp = "pop";
[controlView setButtonTitle:STROKE];
[controlView setButtonEnable:NO];
[controlView eraseTimes:self];
return self;
}
/* Sets a flag to use or not use the device space rounding techniques. */
-deviceDependence:(BOOL) independent
{
if (independent)
PSWSetIndependent();
else
PSWSetDependent();
PSundefinefont(fontname);
PSWDefineFont(fontname);
}
- selectFont:(int) fontsize;
{
PSselectfont(fontname, fontsize);
return self;
}
/* These methods return the current values for the type of control point to draw. */
- (char) getChar
{
return fontchar;
}
- (char *) getBasicProc
{
return basicProc;
}
- (char *) getBasicOp
{
return basicOp;
}
- (float *) getUserPtsArray
{
return userPtsArray;
}
- (char *) getUserOpsArray
{
return userOpsArray;
}
- (char *) getUserOp
{
return userOp;
}
- (char *) getRectOp
{
return rectOp;
}
/* Draws the contol point into a bit map. Uses the alpha to allow transparency. */
- drawImage:imageId
{
[imageId lockFocus];
PSgsave();
PSsetalpha(0.0); /* Transparent */
PSsetgray(NX_WHITE);
PSrectfill(0, 0, FIGURESIZE, FIGURESIZE);
PSsetalpha(1.0); /* Opaque */
PSsetgray(NX_BLACK);
PSWBasic(FIGURESIZE/2, FIGURESIZE/2, basicProc, basicOp);
PSgrestore();
[imageId unlockFocus];
return self;
}
@end