// ymageChart.java 
// ---------------------------
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.anomic.de
// Frankfurt, Germany, 2005
// created: 26.10.2005
//
// 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
//
// Using this software in any meaning (reading, learning, copying, compiling,
// running) means that you agree that the Author(s) is (are) not responsible
// for cost, loss of data or any harm that may be caused directly or indirectly
// by usage of this softare or this documentation. The usage of this software
// is on your own risk. The installation and usage (starting/running) of this
// software may allow other people or application to access your computer and
// any attached devices and is highly dependent on the configuration of the
// software which must be done by the user of the software; the author(s) is
// (are) also not responsible for proper configuration and usage of the
// software, even if provoked by documentation provided together with
// the software.
//
// Any changes to this file according to the GPL as documented in the file
// gpl.txt aside this file in the shipment you received can be done to the
// lines that follows this copyright notice here, but changes must not be
// done inside the copyright notive above. A re-distribution must contain
// the intact and unchanged copyright notice.
// Contributions and changes to the program code must be marked as such.


package de.anomic.ymage;

public class ymageChart extends ymageMatrix {
    
    public static final int DIMENSION_RIGHT  = 0;
    public static final int DIMENSION_TOP    = 1;
    public static final int DIMENSION_LEFT   = 2;
    public static final int DIMENSION_BOTTOM = 3;
    
    int leftborder;
    int rightborder;
    int topborder;
    int bottomborder;
    int[] scales = new int[]{0,0,0,0};
    int[] pixels = new int[]{0,0,0,0};
    String[] colnames = new String[]{"FFFFFF","FFFFFF","FFFFFF","FFFFFF"};
    String[] colscale = new String[]{null,null,null,null};
    String[] tablenames = new String[]{"","","",""};
    
    public ymageChart(int width, int height, String backgroundColor,
                      int leftborder, int rightborder, int topborder, int bottomborder,
                      String name) {
        super(width, height, backgroundColor);
        this.leftborder = leftborder;
        this.rightborder = rightborder;
        this.topborder = topborder;
        this.bottomborder = bottomborder;
        if (name != null) {
            ymageToolPrint.print(this, width / 2 - name.length() * 3, 6, 0, name, -1);
        }
    }
    
    public void declareDimension(int dimensionType, int scale, int pixelperscale, String colorNaming, String colorScale, String name) {
        if ((dimensionType == DIMENSION_LEFT) || (dimensionType == DIMENSION_RIGHT)) {
            drawVerticalScale((dimensionType == DIMENSION_LEFT), scale, pixelperscale, colorNaming, colorScale, name);
        }
        if ((dimensionType == DIMENSION_TOP) || (dimensionType == DIMENSION_BOTTOM)) {
            drawHorizontalScale((dimensionType == DIMENSION_TOP), scale, pixelperscale, colorNaming, colorScale, name);
        }
        scales[dimensionType] = scale;
        pixels[dimensionType] = pixelperscale;
        colnames[dimensionType] = colorNaming;
        colscale[dimensionType] = colorScale;
        tablenames[dimensionType] = name;
    }
    
    public void chartDot(int dimension_x, int dimension_y, int coord_x, int coord_y, int dotsize) {
        int x = coord_x * pixels[dimension_x] / scales[dimension_x];
        int y = coord_y * pixels[dimension_y] / scales[dimension_y];
        if (dotsize == 1) plot(leftborder + x, height - bottomborder - y);
                      else dot(leftborder + x, height - bottomborder - y, dotsize, true);
    }
    
    public void chartLine(int dimension_x, int dimension_y, int coord_x1, int coord_y1, int coord_x2, int coord_y2) {
        int x1 = coord_x1 * pixels[dimension_x] / scales[dimension_x];
        int y1 = coord_y1 * pixels[dimension_y] / scales[dimension_y];
        int x2 = coord_x2 * pixels[dimension_x] / scales[dimension_x];
        int y2 = coord_y2 * pixels[dimension_y] / scales[dimension_y];
        line(leftborder + x1, height - bottomborder - y1, leftborder + x2, height - bottomborder - y2);
    }
    
    private void drawHorizontalScale(boolean top, int scale, int pixelperscale, String colorNaming, String colorScale, String name) {
        int y = (top) ? topborder : height - bottomborder;
        int x = leftborder;
        int s = 0;
        while (x < width - rightborder) {
            if ((colorScale != null) && (x > leftborder) && (x < (width - rightborder))) {
                setColor(colorScale);
                line(x, topborder, x, height - bottomborder);
            }
            setColor(colorNaming);
            line(x, y - 3, x, y + 3);
            ymageToolPrint.print(this, x, (top) ? y - 3 : y + 9, 0, Integer.toString(s), -1);
            x += pixelperscale;
            s += scale;
        }
        setColor(colorNaming);
        ymageToolPrint.print(this, width - rightborder, (top) ? y - 9 : y + 15, 0, name, 1);
        line(leftborder - 4, y, width - rightborder + 4, y);
    }
    
    private void drawVerticalScale(boolean left, int scale, int pixelperscale, String colorNaming, String colorScale, String name) {
        int x = (left) ? leftborder : width - rightborder;
        int y = height - bottomborder;
        int s = 0;
        String s1;
        int s1max = 0;
        while (y > topborder) {
            if ((colorScale != null) && (y > topborder) && (y < (height - bottomborder))) {
                setColor(colorScale);
                line(leftborder, y, width - rightborder, y);
            }
            setColor(colorNaming);
            line(x - 3, y, x + 3, y);
            s1 = Integer.toString(s);
            if (s1.length() > s1max) s1max = s1.length();
            ymageToolPrint.print(this, (left) ? leftborder - 4 : width - rightborder + 4, y, 0, s1, (left) ? 1 : -1);
            y -= pixelperscale;
            s += scale;
        }
        setColor(colorNaming);
        ymageToolPrint.print(this, (left) ? x - s1max * 6 - 6 : x + s1max * 6 + 9, topborder, 90, name, 1);
        line(x, topborder - 4, x, height - bottomborder + 4);
    }
   
    public static void main(String[] args) {
        System.setProperty("java.awt.headless", "true");
        ymageChart ip = new ymageChart(640, 480, "000010", 40, 40, 20, 20, "TESTCHART");
        ip.declareDimension(DIMENSION_BOTTOM, 10, 30, "FFFFFF", "555555", "time");
        ip.declareDimension(DIMENSION_TOP, 10, 40, "FFFFFF", null, "count");
        ip.declareDimension(DIMENSION_LEFT, 100, 30, "FFFFFF", "555555", "money");
        ip.declareDimension(DIMENSION_RIGHT, 100, 50, "FFFFFF", null, "stock");
        ip.setColor("FF0000");
        ip.chartDot(DIMENSION_BOTTOM, DIMENSION_LEFT, 20, 100, 5);
        ip.chartLine(DIMENSION_BOTTOM, DIMENSION_LEFT, 20, 100, 50, 200);
        //ip.print(100, 100, 0, "TEXT", true);
        //ip.print(100, 100, 0, "1234", false);
        //ip.print(100, 100, 90, "TEXT", true);
        //ip.print(100, 100, 90, "1234", false);
        /*
        try {
            ip.toPNG(true, new File("/Users/admin/dev/yacy/trunk/testimage.png"));
        } catch (IOException e) {}
         */
    }
    
}