113 lines
2.8 KiB
Plaintext
113 lines
2.8 KiB
Plaintext
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/*
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MagGrid.java
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*
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* Copyright (c) 2000, Ted Nelson and Tuomas Lukka
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*
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* You may use and distribute under the terms of either the GNU Lesser
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* General Public License, either version 2 of the license or,
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* at your choice, any later version. Alternatively, you may use and
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* distribute under the terms of the XPL.
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*
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* See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of
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* the licenses.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the README
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* file for more details.
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*
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*/
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/*
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* Written by Tuomas Lukka
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*/
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package org.gzigzag;
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import java.awt.*;
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/** A grid magnified from the center.
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*/
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public class MagGrid extends GridGeom implements ZOb {
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public static final String rcsid = "$Id: MagGrid.zob,v 1.2.10.1 2001/08/24 19:58:24 bfallenstein Exp $";
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STRUCTPARAMS {
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float[] shrink // 2..2
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= new float[] {(float)1, (float)1};
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float[] initmul // 2..2
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= new float[] {(float)1.4, (float)1.55};
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int[] gap // 2..2
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= new int[] {6, 6};
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/** Whether to fit all cells into view or leave
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* edges hanging outside.
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*/
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boolean fit
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= false;
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}
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int[] xs;
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int[] ys;
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public Dimension setSizes(Dimension normalcell, Dimension canvas) {
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Dimension ret = new Dimension();
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ret.width = 1;
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int cur = (int)(normalcell.width * initmul[0]);
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int xw;
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for(xw = cur; xw <= canvas.width && cur > 1; xw += 2*cur+2*gap[0]) {
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ret.width +=2;
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cur = (int)(cur * shrink[0]);
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}
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if(fit) {
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xw -= 2*cur+2*gap[0];
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ret.width -= 2;
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}
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xs = new int[ret.width + 1];
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cur = (int)(normalcell.width * initmul[0]);
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xs[ret.width / 2] = cur;
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for(int i=1; i<ret.width/2+1; i++) {
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cur = (int)(cur * shrink[0]);
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xs[ret.width/2-i] = xs[ret.width/2+i] = cur;
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}
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cur = (canvas.width - xw)/2;
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for(int i=0; i<xs.length; i++) {
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int l = xs[i];
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xs[i] = cur;
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cur += l;
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}
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cur = (int)(normalcell.height * initmul[1]);
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int yw;
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for(yw = cur; yw <= canvas.height && cur > 1; yw += 2*cur+2*gap[1]) {
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ret.height +=2;
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cur = (int)(cur * shrink[1]);
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}
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if(fit) {
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yw -= 2*cur+2*gap[1];
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ret.height -= 2;
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}
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ys = new int[ret.height + 1];
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cur = (int)(normalcell.height * initmul[1]);
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ys[ret.height / 2] = cur;
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for(int i=1; i<ret.height/2+1; i++) {
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cur = (int)(cur * shrink[1]);
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ys[ret.height/2-i] = ys[ret.height/2+i] = cur;
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}
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cur = (canvas.height - yw)/2;
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for(int i=0; i<ys.length; i++) {
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int l = ys[i];
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ys[i] = cur;
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cur += l;
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}
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return ret;
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}
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public Rectangle getCell(int x, int y, Rectangle rect) {
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rect.x = xs[x];
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rect.y = ys[y];
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rect.width = xs[x+1]-xs[x] - gap[0];
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rect.height = ys[y+1]-ys[y] - gap[1];
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return rect;
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}
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}
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// vim: set syntax=java :
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