Source code: com/xerox/VTM/glyphs/VDiamondOr.java
1 /* FILE: VDiamondOr.java
2 * DATE OF CREATION: Jul 27 2000
3 * AUTHOR : Emmanuel Pietriga (emmanuel.pietriga@xrce.xerox.com)
4 * MODIF: Thu Jul 10 16:30:28 2003 by Emmanuel Pietriga (emmanuel@w3.org, emmanuel@claribole.net)
5 * Copyright (c) Xerox Corporation, XRCE/Contextual Computing, 2002. All Rights Reserved
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * For full terms see the file COPYING.
18 */
19
20 package com.xerox.VTM.glyphs;
21
22 import java.awt.Color;
23 import java.awt.Graphics2D;
24 import java.awt.Polygon;
25 import java.awt.Font;
26 import java.awt.Stroke;
27 import java.awt.geom.AffineTransform;
28 import java.lang.Math;
29 import com.xerox.VTM.engine.*;
30
31 /**
32 * Diamond (losange with height equal to width) - can be reoriented
33 * @author Emmanuel Pietriga
34 **/
35
36 public class VDiamondOr extends VDiamond implements Cloneable {
37
38 /**vertex x coords*/
39 int[] xcoords=new int[4];
40 /**vertex y coords*/
41 int[] ycoords=new int[4];
42
43 public VDiamondOr(){super();}
44
45 /**
46 *@param x coordinate in virtual space
47 *@param y coordinate in virtual space
48 *@param z altitude
49 *@param s size (width=height) in virtual space
50 *@param c fill color
51 *@param or orientation
52 */
53 public VDiamondOr(long x,long y,float z,long s,Color c,float or){
54 super(x,y,z,s,c);
55 orient=or;
56 //if (orient!=0){computeOrientCoords();}
57 }
58
59 /**get orientation*/
60 public float getOrient(){return orient;}
61
62 /**set orientation (absolute)*/
63 public void orientTo(float angle){
64 orient=angle;
65 try{vsm.repaintNow();}catch(NullPointerException e){/*System.err.println("VSM null in Glyph "+e);*/}
66 // vsm.constMgr.suggestAValue(this.ID,"or",orient);
67 //computeOrientCoords();
68 }
69
70 /**set orientation (absolute)*/
71 // public void orientToNS(float angle){
72 // orient=angle;
73 // //computeOrientCoords();
74 // }
75
76 /**used to find out if glyph completely fills the view (in which case it is not necessary to repaint objects at a lower altitude)*/
77 public boolean fillsView(long w,long h,int camIndex){
78 if ((pc[camIndex].p.contains(0,0)) && (pc[camIndex].p.contains(w,0)) && (pc[camIndex].p.contains(0,h)) && (pc[camIndex].p.contains(w,h))){return true;}
79 else {return false;}
80 }
81
82 void computeOrientCoords(int i){
83 xcoords[0]=(int)Math.round(pc[i].cx+pc[i].cs*Math.cos(orient));
84 xcoords[1]=(int)Math.round(pc[i].cx-pc[i].cs*Math.sin(orient));
85 xcoords[2]=(int)Math.round(pc[i].cx-pc[i].cs*Math.cos(orient));
86 xcoords[3]=(int)Math.round(pc[i].cx+pc[i].cs*Math.sin(orient));
87 ycoords[0]=(int)Math.round(pc[i].cy-pc[i].cs*Math.sin(orient));
88 ycoords[1]=(int)Math.round(pc[i].cy-pc[i].cs*Math.cos(orient));
89 ycoords[2]=(int)Math.round(pc[i].cy+pc[i].cs*Math.sin(orient));
90 ycoords[3]=(int)Math.round(pc[i].cy+pc[i].cs*Math.cos(orient));
91 }
92
93 /**project shape in camera coord sys prior to actual painting*/
94 public void project(Camera c,ViewPanel v){
95 int i=c.getIndex();
96 coef=(float)(c.focal/(c.focal+c.altitude));
97 //find coordinates of object's geom center wrt to camera center and project
98 pc[i].cx=Math.round((vx-c.posx)*coef);
99 pc[i].cy=Math.round((vy-c.posy)*coef);
100 //translate in JPanel coords
101 pc[i].cx=(v.getSize().width/2)+pc[i].cx;
102 pc[i].cy=(v.getSize().height/2)-pc[i].cy;
103 //project height and construct polygon
104 pc[i].cs=Math.round(vs*coef);
105 computeOrientCoords(i);
106 pc[i].p=new Polygon(xcoords,ycoords,4);
107 }
108
109 /**draw glyph
110 *@param i camera index in the virtual space
111 */
112 public void draw(Graphics2D g,int vW,int vH,int i,Stroke stdS,AffineTransform stdT){
113 if (pc[i].cs>1){//repaint only if object is visible
114 if (filled) {
115 g.setColor(this.color);
116 g.fillPolygon(pc[i].p);
117 }
118 g.setColor(borderColor);
119 if (paintBorder){
120 if (stroke!=null) {
121 g.setStroke(stroke);
122 g.drawPolygon(pc[i].p);
123 g.setStroke(stdS);
124 }
125 else {
126 g.drawPolygon(pc[i].p);
127 }
128 }
129 this.textDraw(g,i);
130 }
131 else g.fillRect(pc[i].cx,pc[i].cy,1,1);
132 }
133
134 /**returns a clone of this object (only basic information is cloned for now: shape, orientation, position, size)*/
135 public Object clone(){
136 VDiamondOr res=new VDiamondOr(vx,vy,0,vs,color,orient);
137 res.borderColor=this.borderColor;
138 res.selectedColor=this.selectedColor;
139 res.mouseInsideColor=this.mouseInsideColor;
140 res.bColor=this.bColor;
141 return res;
142 }
143 }