// ymageMatrix.java
// (C) 2005 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
// first published 16.09.2005 on http://yacy.net
//
// This is a part of YaCy, a peer-to-peer based web search engine
//
// $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
// $LastChangedRevision: 1986 $
// $LastChangedBy: orbiter $
//
// LICENSE
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
/*
This Class implements some convenience-methods to support drawing of statistical Data
It is not intended to replace existing awt-funktions even if it looks so
This class provides some drawing methods that creates transparency effects that
are not available in awt.
*/
package de.anomic.ymage;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.awt.image.WritableRaster;
import javax.imageio.ImageIO;
import de.anomic.server.serverMemory;
public class ymageMatrix /*implements Cloneable*/ {
// colors regarding CMY Color Model
public static final long SUBTRACTIVE_CYAN = 0xFF0000;
public static final long SUBTRACTIVE_MAGENTA = 0x00FF00;
public static final long SUBTRACTIVE_YELLOW = 0x0000FF;
public static final long SUBTRACTIVE_BLACK = 0xFFFFFF;
public static final long SUBTRACTIVE_WHITE = 0x000000;
public static final long SUBTRACTIVE_RED = 0x007F7F;
public static final long SUBTRACTIVE_GREEN = 0x7F007F;
public static final long SUBTRACTIVE_BLUE = 0x7F7F00;
public static final byte MODE_REPLACE = 0;
public static final byte MODE_SUB = 2;
protected int width, height;
private BufferedImage image;
private WritableRaster grid;
private int[] defaultCol;
private byte defaultMode;
/*
public ymageMatrix(ymageMatrix matrix) throws RuntimeException {
if (!(serverMemory.available(1024 * 1024 + 3 * width * height, true))) throw new RuntimeException("ymage: not enough memory (" + serverMemory.available() + ") available");
// clones the matrix
this.width = matrix.width;
this.height = matrix.height;
this.defaultColR = matrix.defaultColR;
this.defaultColG = matrix.defaultColG;
this.defaultColB = matrix.defaultColB;
this.defaultMode = matrix.defaultMode;
this.grid = (WritableRaster) matrix.grid.
System.arraycopy(matrix.grid, 0, this.grid, 0, matrix.grid.length);
}
*/
public ymageMatrix(int width, int height, String backgroundColor) {
this(width, height, colNum(backgroundColor));
}
public ymageMatrix(int width, int height, long backgroundColor) {
if (!(serverMemory.request(1024 * 1024 + 3 * width * height, false))) throw new RuntimeException("ymage: not enough memory (" + serverMemory.available() + ") available");
this.width = width;
this.height = height;
this.defaultCol = new int[]{0xFF, 0xFF, 0xFF};
this.defaultMode = MODE_REPLACE;
image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D gr = image.createGraphics();
gr.setBackground(Color.white);
//gr.clearRect(0, 0, width, height);
grid = image.getRaster();
//if (backgroundColor != SUBTRACTIVE_WHITE) {
// fill grid with background color
byte bgR = (byte) (0xFF - (backgroundColor >> 16));
byte bgG = (byte) (0xFF - ((backgroundColor >> 8) & 0xff));
byte bgB = (byte) (0xFF - (backgroundColor & 0xff));
int[] c = new int[]{bgR, bgG, bgB};
for (int i = 0; i < width; i++) {
for (int j = 0; j < height; j++) {
grid.setPixel(i, j, c);
}
}
//}
}
public BufferedImage getImage() {
return this.image;
}
private static long colNum(String col) {
return Long.parseLong(col, 16);
//return Integer.parseInt(col.substring(0,2), 16) << 16 | Integer.parseInt(col.substring(2,4), 16) << 8 | Integer.parseInt(col.substring(4,6), 16);
}
/*
public Object clone() {
return new ymageMatrix(this);
}
*/
public int getWidth() {
return width;
}
public int getHeight() {
return height;
}
public void setColor(long c) {
defaultCol[0] = (int) (c >> 16);
defaultCol[1] = (int) ((c >> 8) & 0xff);
defaultCol[2] = (int) (c & 0xff);
}
public void setColor(String s) {
setColor(colNum(s));
}
public void setMode(byte m) {
this.defaultMode = m;
}
public void plot(int x, int y) {
if ((x < 0) || (x >= width)) return;
if ((y < 0) || (y >= height)) return;
//int n = 3 * (x + y * width);
if (this.defaultMode == MODE_REPLACE) {
grid.setPixel(x, y, defaultCol);
} else if (this.defaultMode == MODE_SUB) {
int[] c = new int[3];
c = grid.getPixel(x, y, c);
int r = (0xff & c[0]) - defaultCol[0]; if (r < 0) r = 0;
int g = (0xff & c[1]) - defaultCol[1]; if (g < 0) g = 0;
int b = (0xff & c[2]) - defaultCol[2]; if (b < 0) b = 0;
grid.setPixel(x, y, new int[]{r, g, b});
}
}
public void line(int Ax, int Ay, int Bx, int By) {
// Bresenham's line drawing algorithm
int dX = Math.abs(Bx-Ax);
int dY = Math.abs(By-Ay);
int Xincr, Yincr;
if (Ax > Bx) Xincr=-1; else Xincr=1;
if (Ay > By) Yincr=-1; else Yincr=1;
if (dX >= dY) {
int dPr = dY<<1;
int dPru = dPr - (dX<<1);
int P = dPr - dX;
for (; dX>=0; dX--) {
plot(Ax, Ay);
if (P > 0) {
Ax+=Xincr;
Ay+=Yincr;
P+=dPru;
} else {
Ax+=Xincr;
P+=dPr;
}
}
} else {
int dPr = dX<<1;
int dPru = dPr - (dY<<1);
int P = dPr - dY;
for (; dY>=0; dY--) {
plot(Ax, Ay);
if (P > 0) {
Ax+=Xincr;
Ay+=Yincr;
P+=dPru;
} else {
Ay+=Yincr;
P+=dPr;
}
}
}
}
public void lineDot(int x0, int y0, int x1, int y1, int radius, int distance, long lineColor, long dotColor) {
// draw a line with a dot at the end.
// the radius value is the radius of the dot
// the distance value is the distance of the dot border to the endpoint
// compute first the angle of the line between the points
double angle = (x1 - x0 > 0) ? Math.atan(((double) (y0 - y1)) / ((double) (x1 - x0))) : Math.PI - Math.atan(((double) (y0 - y1)) / ((double) (x0 - x1)));
// now find two more points in between
// first calculate the radius' of the points
double ra = Math.sqrt((double) ((x0 - x1) * (x0 - x1) + (y0 - y1) * (y0 - y1))); // from a known point x1, y1
double rb = ra - radius - distance;
double rc = rb - radius;
//System.out.println("CONTROL angle = " + angle);
//System.out.println("CONTROL x1 = " + x1 + ", x1calc = " + ((x0 + ((int) ra * Math.cos(angle)))));
//System.out.println("CONTROL y1 = " + y1 + ", y1calc = " + ((y0 - ((int) ra * Math.sin(angle)))));
// the points are on a circle with radius rb and rc
int x2 = x0 + ((int) (rb * Math.cos(angle)));
int y2 = y0 - ((int) (rb * Math.sin(angle)));
int x3 = x0 + ((int) (rc * Math.cos(angle)));
int y3 = y0 - ((int) (rc * Math.sin(angle)));
setColor(lineColor);
line(x0, y0, x3, y3);
setColor(dotColor);
dot(x2, y2, radius, true);
}
public int[] getColor(int x, int y) {
int[] c = new int[3];
return grid.getPixel(x, y, c);
}
public void dot(int x, int y, int radius, boolean filled) {
if (filled) {
for (int r = radius; r >= 0; r--) ymageToolCircle.circle(this, x, y, r);
} else {
ymageToolCircle.circle(this, x, y, radius);
}
}
public void arc(int x, int y, int innerRadius, int outerRadius, int fromArc, int toArc) {
for (int r = innerRadius; r <= outerRadius; r++) ymageToolCircle.circle(this, x, y, r, fromArc, toArc);
}
public void arcLine(int cx, int cy, int innerRadius, int outerRadius, int angle) {
int xi = cx + (int) (innerRadius * Math.cos(Math.PI * angle / 180));
int yi = cy - (int) (innerRadius * Math.sin(Math.PI * angle / 180));
int xo = cx + (int) (outerRadius * Math.cos(Math.PI * angle / 180));
int yo = cy - (int) (outerRadius * Math.sin(Math.PI * angle / 180));
line(xi, yi, xo, yo);
}
public void arcDot(int cx, int cy, int arcRadius, int angle, int dotRadius) {
int x = cx + (int) (arcRadius * Math.cos(Math.PI * angle / 180));
int y = cy - (int) (arcRadius * Math.sin(Math.PI * angle / 180));
dot(x, y, dotRadius, true);
}
public void arcArc(int cx, int cy, int arcRadius, int angle, int innerRadius, int outerRadius, int fromArc, int toArc) {
int x = cx + (int) (arcRadius * Math.cos(Math.PI * angle / 180));
int y = cy - (int) (arcRadius * Math.sin(Math.PI * angle / 180));
arc(x, y, innerRadius, outerRadius, fromArc, toArc);
}
public static void demoPaint(ymageMatrix m) {
m.setMode(MODE_SUB);
m.setColor(SUBTRACTIVE_CYAN);
m.line(0, 10, 100, 10); ymageToolPrint.print(m, 0, 5, 0, "Cyan", -1);
m.line(50, 0, 50, 300);
m.setColor(SUBTRACTIVE_MAGENTA);
m.line(0, 30, 100, 30); ymageToolPrint.print(m, 0, 25, 0, "Magenta", -1);
m.line(55, 0, 55, 300);
m.setColor(SUBTRACTIVE_YELLOW);
m.line(0, 50, 100, 50); ymageToolPrint.print(m, 0, 45, 0, "Yellow", -1);
m.line(60, 0, 60, 300);
m.setColor(SUBTRACTIVE_BLACK);
m.line(0, 70, 100, 70); ymageToolPrint.print(m, 0, 65, 0, "Black", -1);
m.line(65, 0, 65, 300);
m.setColor(SUBTRACTIVE_RED);
m.line(0, 90, 100, 90); ymageToolPrint.print(m, 0, 85, 0, "Red", -1);
m.line(70, 0, 70, 300);
m.setColor(SUBTRACTIVE_GREEN);
m.line(0, 110, 100, 110); ymageToolPrint.print(m, 0, 105, 0, "Green", -1);
m.line(75, 0, 75, 300);
m.setColor(SUBTRACTIVE_BLUE);
m.line(0, 130, 100, 130); ymageToolPrint.print(m, 0, 125, 0, "Blue", -1);
m.line(80, 0, 80, 300);
}
public static void main(String[] args) {
// go into headless awt mode
System.setProperty("java.awt.headless", "true");
ymageMatrix m = new ymageMatrix(200, 300, SUBTRACTIVE_WHITE);
demoPaint(m);
try {
ImageIO.write(m.getImage(), "png", new java.io.File(args[0]));
} catch (java.io.IOException e) {
e.printStackTrace();
}
// open file automatically, works only on Mac OS X
/*
Process p = null;
try {
p = Runtime.getRuntime().exec(new String[] {"/usr/bin/osascript", "-e", "open \"" + args[0] + "\""});
} catch (java.io.IOException e) {
e.printStackTrace();
}
try {
p.waitFor();
} catch (InterruptedException e) {
e.printStackTrace();
}
*/
}
}