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/* Copyright (c) Uwe Hoffmann, 1995. All Rights Reserved. Filename: MiscVerticalArrowShape.m Author: Uwe Hoffmann Date: Sep 07, 1995 $Id: MiscVerticalArrowShape.m,v 1.0 1995/09/07 11:22:00 Uwe Hoffmann Exp $ $Log: MiscVerticalArrowShape.m,v $ */ #import <appkit/appkit.h> #import "MiscVerticalArrowShape.h" #import "MiscUserPath.h" #import "MiscHitPath.h" extern BOOL straddles(NSPoint p1, NSPoint p2, NSPoint p3, NSPoint p4); @implementation MiscVerticalArrowShape - (NSRect)innerBounds { return [path bounds]; } - (MiscShapeType)shapeType { return MiscVerticalArrowShapeType; } - (void)calcIntersection:(NSPoint *)ip angle:(float *)alpha toPoint:(NSPoint)aPoint { NSPoint middle,l1,l2,pos; float s,width,height,*bbox; bbox = [path bbox]; pos.x = bbox[0]; pos.y = bbox[1]; width = bbox[2] - bbox[0]; height = bbox[3] - bbox[1]; middle.x = pos.x + width / 2; middle.y = pos.y + height / 2; if(aPoint.y == middle.y){ *alpha = 0; ip->y = middle.y; if(aPoint.x > middle.x) ip->x = pos.x + width; else ip->x = pos.x; return; } if(aPoint.x == middle.x){ ip->x = middle.x; if(aPoint.y > middle.y){ ip->y = pos.y + height; *alpha = -90; } else { ip->y = pos.y; *alpha = 90; } return; } s = (aPoint.y - middle.y) / (aPoint.x - middle.x); *alpha = 57.29577951 * atan(s); if(aPoint.y > middle.y){ if(aPoint.x > middle.x){ // 4. quadrant l1.x = middle.x; l1.y = l2.y = pos.y + height; l2.x = pos.x + width; if(straddles(l1, l2, middle, aPoint)){ ip->y = l1.y; ip->x = middle.x + (ip->y - middle.y) / s; } else { ip->x = l2.x; ip->y = middle.y + s * (ip->x - middle.x); } } else { // 3. quadrant l1.x = middle.x; l1.y = l2.y = pos.y + height; l2.x = pos.x; if(straddles(l1, l2, middle, aPoint)){ ip->y = l1.y; ip->x = middle.x + (ip->y - middle.y) / s; } else { ip->x = l2.x; ip->y = middle.y + s * (ip->x - middle.x); } } } else { if(aPoint.x > middle.x){ // 1. quadrant l1.x = middle.x; l1.y = l2.y = pos.y; l2.x = pos.x + width; if(straddles(l1, l2, middle, aPoint)){ ip->y = l1.y; ip->x = middle.x + (ip->y - middle.y) / s; } else { ip->x = l2.x; ip->y = middle.y + s * (ip->x - middle.x); } } else { // 2. quadrant l1.x = middle.x; l1.y = l2.y = pos.y; l2.x = pos.x; if(straddles(l1, l2, middle, aPoint)){ ip->y = l1.y; ip->x = middle.x + (ip->y - middle.y) / s; } else { ip->x = l2.x; ip->y = middle.y + s * (ip->x - middle.x); } } } } - (void)makePathWithBounds:(NSRect)aRect { [path moveto:aRect.origin.x :aRect.origin.y]; [path rlineto:aRect.size.width :0.0]; [path rlineto:0.0 :aRect.size.height]; [path rlineto:-aRect.size.width :0.0]; [path rlineto:0.0 :-aRect.size.height]; } - (void)fillParamsWithBounds:(NSRect)aRect { float *params, *bbox; params = [path params]; bbox = [path bbox]; bbox[0] = aRect.origin.x; bbox[1] = aRect.origin.y; bbox[2] = aRect.origin.x + aRect.size.width; bbox[3] = aRect.origin.y + aRect.size.height; params[0] = aRect.origin.x; params[1] = aRect.origin.y; params[2] = aRect.size.width; params[3] = 0.0; params[4] = 0.0; params[5] = aRect.size.height; params[6] = -aRect.size.width; params[7] = 0.0; params[8] = 0.0; params[9] = -aRect.size.height; } + (NSSize)calcSizeForInnerSize:(NSSize)aSize { return aSize; } @end
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.