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238 lines
8.5 KiB
238 lines
8.5 KiB
// ymageMatrix.java
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// ---------------------------
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// (C) by Michael Peter Christen; mc@anomic.de
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2005
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// last major change: 16.09.2005
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program 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
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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/*
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This Class implements some convenience-methods to support drawing of statistical Data
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It is not intended to replace existing awt-funktions even if it looks so
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This class provides some drawing methods that creates transparency effects that
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are not available in awt.
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*/
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package de.anomic.ymage;
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public class ymageMatrix implements Cloneable {
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// colors regarding RGB Color Model
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public static final long ADDITIVE_RED = 0xFF0000;
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public static final long ADDITIVE_GREEN = 0x00FF00;
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public static final long ADDITIVE_BLUE = 0x0000FF;
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public static final long ADDITIVE_BLACK = 0xFFFFFF;
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// colors regarding CMY Color Model
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public static final long SUBTRACTIVE_CYAN = 0xFF0000;
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public static final long SUBTRACTIVE_MAGENTA = 0x00FF00;
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public static final long SUBTRACTIVE_YELLOW = 0x0000FF;
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public static final long SUBTRACTIVE_WHITE = 0xFFFFFF;
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public static final byte MODE_REPLACE = 0;
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public static final byte MODE_ADD = 1;
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public static final byte MODE_SUB = 2;
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protected int width, height;
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private byte[] grid; // one-dimensional arrays are much faster than two-dimensional
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private int defaultColR, defaultColG, defaultColB;
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private byte defaultMode;
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private boolean grabComplementary = false;
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public ymageMatrix(ymageMatrix matrix) {
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// clones the matrix
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this.width = matrix.width;
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this.height = matrix.height;
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this.defaultColR = matrix.defaultColR;
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this.defaultColG = matrix.defaultColG;
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this.defaultColB = matrix.defaultColB;
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this.defaultMode = matrix.defaultMode;
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this.grabComplementary = matrix.grabComplementary;
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this.grid = new byte[3 * width * height];
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System.arraycopy(matrix.grid, 0, this.grid, 0, matrix.grid.length);
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}
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public ymageMatrix(int width, int height, String backgroundColor) {
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this(width, height, colNum(backgroundColor));
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}
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public ymageMatrix(int width, int height, long backgroundColor) {
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this.width = width;
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this.height = height;
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this.defaultColR = 0xFF;
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this.defaultColG = 0xFF;
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this.defaultColB = 0xFF;
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this.defaultMode = MODE_REPLACE;
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grid = new byte[3 * width * height];
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// fill grid with background color
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byte bgR = (byte) (backgroundColor >> 16);
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byte bgG = (byte) ((backgroundColor >> 8) & 0xff);
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byte bgB = (byte) (backgroundColor & 0xff);
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for (int n = 3 * width * height - 3; n >= 0; n = n - 3) {
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grid[n ] = bgR;
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grid[n + 1] = bgG;
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grid[n + 2] = bgB;
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}
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}
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private static long colNum(String col) {
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return Long.parseLong(col, 16);
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//return Integer.parseInt(col.substring(0,2), 16) << 16 | Integer.parseInt(col.substring(2,4), 16) << 8 | Integer.parseInt(col.substring(4,6), 16);
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}
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/*
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private static String colStr(long c) {
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String s = Long.toHexString(c);
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while (s.length() < 6) s = "0" + s;
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return s;
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}
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*/
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public Object clone() {
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return new ymageMatrix(this);
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}
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public int getWidth() {
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return width;
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}
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public int getHeight() {
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return height;
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}
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public void setColor(long c) {
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defaultColR = (int) (c >> 16);
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defaultColG = (int) ((c >> 8) & 0xff);
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defaultColB = (int) (c & 0xff);
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}
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public void setColor(String s) {
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setColor(colNum(s));
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}
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public void setMode(byte m) {
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this.defaultMode = m;
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}
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public void plot(int x, int y) {
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if ((x < 0) || (x >= width)) return;
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if ((y < 0) || (y >= height)) return;
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int n = 3 * (x + y * width);
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if (this.defaultMode == MODE_REPLACE) {
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grid[n ] = (byte) defaultColR;
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grid[n + 1] = (byte) defaultColG;
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grid[n + 2] = (byte) defaultColB;
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} else if (this.defaultMode == MODE_ADD) {
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int r = (0xff & grid[n ]) + defaultColR; if (r > 0xff) r = 0xff;
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int g = (0xff & grid[n + 1]) + defaultColG; if (g > 0xff) g = 0xff;
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int b = (0xff & grid[n + 2]) + defaultColB; if (b > 0xff) b = 0xff;
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grid[n ] = (byte) r;
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grid[n + 1] = (byte) g;
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grid[n + 2] = (byte) b;
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} else if (this.defaultMode == MODE_SUB) {
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int r = (0xff & grid[n ]) - defaultColR; if (r < 0) r = 0;
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int g = (0xff & grid[n + 1]) - defaultColG; if (g < 0) g = 0;
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int b = (0xff & grid[n + 2]) - defaultColB; if (b < 0) b = 0;
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grid[n ] = (byte) r;
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grid[n + 1] = (byte) g;
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grid[n + 2] = (byte) b;
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}
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}
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public void line(int Ax, int Ay, int Bx, int By) {
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// Bresenham's line drawing algorithm
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int dX = Math.abs(Bx-Ax);
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int dY = Math.abs(By-Ay);
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int Xincr, Yincr;
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if (Ax > Bx) Xincr=-1; else Xincr=1;
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if (Ay > By) Yincr=-1; else Yincr=1;
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if (dX >= dY) {
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int dPr = dY<<1;
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int dPru = dPr - (dX<<1);
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int P = dPr - dX;
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for (; dX>=0; dX--) {
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plot(Ax, Ay);
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if (P > 0) {
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Ax+=Xincr;
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Ay+=Yincr;
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P+=dPru;
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} else {
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Ax+=Xincr;
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P+=dPr;
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}
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}
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} else {
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int dPr = dX<<1;
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int dPru = dPr - (dY<<1);
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int P = dPr - dY;
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for (; dY>=0; dY--) {
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plot(Ax, Ay);
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if (P > 0) {
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Ax+=Xincr;
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Ay+=Yincr;
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P+=dPru;
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} else {
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Ay+=Yincr;
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P+=dPr;
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}
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}
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}
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}
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public void getColorMode(boolean grabComplementary) {
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this.grabComplementary = grabComplementary;
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}
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public int[] getColor(int x, int y) {
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int n = 3 * (x + y * width);
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if (grabComplementary) {
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int r = 0xff & grid[n ];
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int g = 0xff & grid[n + 1];
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int b = 0xff & grid[n + 2];
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return new int[]{(0x1fe - g - b) / 2, (0x1fe - r - b) / 2, (0x1fe - r - g) / 2};
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} else {
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int r = 0xff & grid[n ];
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int g = 0xff & grid[n + 1];
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int b = 0xff & grid[n + 2];
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return new int[]{r, g, b};
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}
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}
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}
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