package ij.gui;
import ij.*;
import ij.process.*;
import ij.plugin.frame.Recorder;
import java.awt.*;

/*
 * This class contains dialogs for formatting of plots (range, axes, labels, legend, creating a high-resolution plot)
 * Formatting of contents (curves, symbols, ...) is in PlotContentsStyleDialog
 */

public class PlotDialog {

    /** types of dialog */
    public static final int SET_RANGE = 0, AXIS_OPTIONS = 1, LEGEND = 2, HI_RESOLUTION = 3;
    /** dialog headings for the dialogType */
    private static final String[] HEADINGS = new String[] {"Plot Range...", "Axis Options...", "Add Legend...", "High-Resolution Plot..."};
    /** potins and numbers for legend position */
    private static final String[] LEGEND_POSITIONS = new String[] {"Auto",  "Top-Left", "Top-Right", "Bottom-Left", "Bottom-Right", "No Legend"};
    private static final int[] LEGEND_POSITION_N = new int[] {Plot.AUTO_POSITION, Plot.TOP_LEFT, Plot.TOP_RIGHT, Plot.BOTTOM_LEFT, Plot.BOTTOM_RIGHT, 0};

    private Plot plot;
    private int dialogType;

    //saved dialog options: legend
    private static int legendPosNumber = 0;
    private static boolean bottomUp;
    private static boolean transparentBackground;
    //saved dialog options: Axis labels
    private static String xLabel, yLabel;
    private static float plotFontSize;
    private static boolean axisLabelBold;
    //saved dialog options: High-resolution plot
    private static float hiResFactor = 4.0f;
    private static boolean hiResAntiAliased = true;

    /** Construct a new PlotDialog, show it and do the appropriate action on the plot
     */
    public PlotDialog(Plot plot, int dialogType) {
        this.plot = plot;
        this.dialogType = dialogType;
    }

    /** Asks the user for axis scaling; then replot with new scale on the same ImageProcessor.
     *  The 'parent' frame may be null */
    public void showDialog(Frame parent) {
        GenericDialog gd = parent == null ? new GenericDialog(HEADINGS[dialogType]) :
                new GenericDialog(HEADINGS[dialogType]);
        if (dialogType == SET_RANGE) {
            double[] currentMinMax = plot.currentMinMax;
            boolean livePlot = plot.plotMaker != null;
            int xDigits = plot.logXAxis ? -2 : Plot.getDigits(currentMinMax[0], currentMinMax[1], 0.005*Math.abs(currentMinMax[1]-currentMinMax[0]), 6);
            int yDigits = plot.logYAxis ? -2 : Plot.getDigits(currentMinMax[2], currentMinMax[3], 0.005*Math.abs(currentMinMax[3]-currentMinMax[2]), 6);
            gd.addNumericField("X_From*", currentMinMax[0], xDigits);
            gd.addNumericField("X_To*", currentMinMax[1], xDigits);
            gd.setInsets(0, 20, 0); //top, left, bottom
            if (livePlot)
                gd.addCheckbox("Fix_X Range While Live", (plot.templateFlags & Plot.X_RANGE) != 0);
            gd.addCheckbox("Log_X Axis", (plot.hasFlag(Plot.X_LOG_NUMBERS)));
            gd.setInsets(20, 0, 3); //top, left, bottom
            gd.addNumericField("Y_From*", currentMinMax[2], yDigits);
            gd.addNumericField("Y_To*", currentMinMax[3], yDigits);
            if (livePlot)
                gd.addCheckbox("Fix_Y Range While Live", (plot.templateFlags & Plot.Y_RANGE) != 0);
            gd.addCheckbox("Log_Y Axis", (plot.hasFlag(Plot.Y_LOG_NUMBERS)));
            gd.addMessage("*Leave empty for automatic range", new Font("SansSerif", Font.PLAIN, 12));        //n__ begin PlotDialog
            gd.showDialog();
            if (gd.wasCanceled())
                return;
            plot.saveMinMax();
            double linXMin = gd.getNextNumber();
            if (gd.invalidNumber())
                linXMin = Double.NaN;
            double linXMax = gd.getNextNumber();
            if (gd.invalidNumber())
                linXMax = Double.NaN;
            double linYMin = gd.getNextNumber();
            if (gd.invalidNumber())
                linYMin = Double.NaN;
            double linYMax = gd.getNextNumber();
            if (gd.invalidNumber())
                linYMax = Double.NaN;

            currentMinMax[0] = linXMin;
            currentMinMax[1] = linXMax;
            currentMinMax[2] = linYMin;
            currentMinMax[3] = linYMax;

            if (livePlot) plot.templateFlags = setFlag(plot.templateFlags, Plot.X_RANGE, gd.getNextBoolean());
            boolean xLog = gd.getNextBoolean();
            if (livePlot) plot.templateFlags = setFlag(plot.templateFlags, Plot.Y_RANGE, gd.getNextBoolean());
            boolean yLog = gd.getNextBoolean();
            plot.setAxisXLog(xLog);
            plot.setAxisYLog(yLog);
                        plot.setLimits(linXMin, linXMax, linYMin, linYMax);
            plot.updateImage();
            if (Recorder.record) {
                if (Recorder.scriptMode()) {
                    Recorder.recordCall("//plot = IJ.getImage().getProperty(Plot.PROPERTY_KEY)");
                    Recorder.recordCall("plot.setAxisXLog("+xLog+");");
                    Recorder.recordCall("plot.setAxisYLog("+yLog+");");
                    //Recorder.recordCall("plot.setLimits("+IJ.d2s(currentMinMax[0],xDigits)+","+IJ.d2s(currentMinMax[1],xDigits)+","+IJ.d2s(currentMinMax[2],yDigits)+","+IJ.d2s(currentMinMax[3],yDigits)+");");
                    Recorder.recordCall("plot.setLimits("+IJ.d2s(linXMin,xDigits)+","+IJ.d2s(linXMax,xDigits)+","+IJ.d2s(linYMin,yDigits)+","+IJ.d2s(linYMax,yDigits)+");");
                } else {
                    Recorder.recordString("Plot.setLogScaleX("+xLog+");\n");
                    Recorder.recordString("Plot.setLogScaleY("+yLog+");\n");
                    //Recorder.recordString("Plot.setLimits("+IJ.d2s(currentMinMax[0],xDigits)+","+IJ.d2s(currentMinMax[1],xDigits)+","+IJ.d2s(currentMinMax[2],yDigits)+","+IJ.d2s(currentMinMax[3],yDigits)+");\n");
                    Recorder.recordString("Plot.setLimits("+IJ.d2s(linXMin,xDigits)+","+IJ.d2s(linXMax,xDigits)+","+IJ.d2s(linYMin,yDigits)+","+IJ.d2s(linYMax,yDigits)+");\n");
                }
            }
        //n__ end PlotDialog
        } else if (dialogType == AXIS_OPTIONS) {
            int flags = plot.getFlags();
            int columns = 2;
            final String[] labels = new String[] {"Draw Grid", "Major Ticks", "Minor Ticks", "Ticks if Logarithmic", "Numbers"};
            final int[] xFlags = new int[] {Plot.X_GRID, Plot.X_TICKS, Plot.X_MINOR_TICKS, Plot.X_LOG_TICKS, Plot.X_NUMBERS};
            Panel panel = new Panel();
            panel.setLayout(new GridBagLayout());
            GridBagConstraints c = new GridBagConstraints();
            c.anchor = GridBagConstraints.CENTER;
            c.gridy = 0;
            c.gridx = 1;
            panel.add(new Label("X Axis"), c);
            c.gridx = 2;
            panel.add(new Label("Y Axis"), c);

            Checkbox[] checkboxes = new Checkbox[labels.length*columns];
            for (int l=0; l<labels.length; l++) {
                c.gridy++;
                c.gridx = 0;
                c.anchor = GridBagConstraints.EAST;
                panel.add(new Label(labels[l]), c);
                c.anchor = GridBagConstraints.CENTER;
                c.gridx = GridBagConstraints.RELATIVE;
                checkboxes[l*columns] = new Checkbox(null, getFlag(flags, xFlags[l])); //x flag
                panel.add(checkboxes[l*columns], c);
                checkboxes[l*columns+1] = new Checkbox(null, getFlag(flags, xFlags[l]<<1)); //y flags are shifted up one bit
                panel.add(checkboxes[l*columns+1], c);
            }
            gd.addPanel(panel);
            gd.setInsets(15, 0, 3); // top, left, bottom -- extra space
            Font plotFont = (plot.currentFont != null) ? plot.currentFont : plot.defaultFont;
            Font labelFont = plot.getFont('x');
            if (labelFont == null) labelFont = plotFont;
            Font numberFont = plot.getFont('f');
            if (numberFont == null) numberFont = plotFont;
            String plotXLabel = plot.getLabel('x');
            String plotYLabel = plot.getLabel('y');
            if (plotXLabel == null) plotXLabel = "";
            if (plotYLabel == null) plotYLabel = "";
            if (xLabel == null || (!(plotXLabel.equals("Distance (pixels)") || plotXLabel.equals("Distance ( )"))))
                xLabel = plotXLabel;
            if (yLabel == null || !plotYLabel.equals("Gray Value"))
                yLabel = plotYLabel; // suggest last dialog entry if default profile label
            gd.addNumericField("Number Font Size", numberFont.getSize2D(), 1);
            gd.addNumericField("Label Font Size", labelFont.getSize2D(), 1);
            gd.addStringField("X Axis Label", xLabel, 15);
            gd.addStringField("Y Axis Label", yLabel, 15);
            gd.setInsets(0, 20, 0); // no extra space
            gd.addCheckbox("Bold Labels", plotFontSize>0 ? axisLabelBold : (labelFont.isBold()));
            gd.showDialog();
            if (gd.wasCanceled()) return;

            flags = 0;
            for (int l=0; l<labels.length; l++) {
                flags = setFlag(flags, xFlags[l], checkboxes[l*columns].getState());
                flags = setFlag(flags, xFlags[l]<<1, checkboxes[l*columns+1].getState());
            }
            plot.setFormatFlags(flags);
            float numberFontSize = (float)gd.getNextNumber();
            if (gd.invalidNumber()) numberFontSize = numberFont.getSize2D();
            if (numberFontSize < 9)  numberFontSize = 9f;
            if (numberFontSize > 24) numberFontSize = 24f;
            float labelFontSize = (float)gd.getNextNumber();
            if (gd.invalidNumber()) labelFontSize = labelFont.getSize2D();
            xLabel = gd.getNextString();
            yLabel = gd.getNextString();
            axisLabelBold = gd.getNextBoolean();
            plot.setFont('f', numberFont.deriveFont(numberFont.getStyle(), numberFontSize));
            plot.setAxisLabelFont(axisLabelBold ? Font.BOLD : Font.PLAIN, labelFontSize);
            plot.setXYLabels(xLabel, yLabel);
            plot.updateImage();
            if (Recorder.record) {
                if (Recorder.scriptMode()) {
                    Recorder.recordCall("//plot = IJ.getImage().getProperty(Plot.PROPERTY_KEY)");
                    Recorder.recordCall("plot.setFont(-1,"+IJ.d2s(plotFontSize,1)+");");
                    Recorder.recordCall("plot.setAxisLabelFont(Plot."+(axisLabelBold ? "BOLD" : "PLAIN")+","+IJ.d2s(labelFontSize,1)+");");
                    Recorder.recordCall("plot.setXYLabels(\""+xLabel+"\", \""+yLabel+"\");");
                    Recorder.recordCall("plot.setFormatFlags(0x"+Integer.toHexString(flags)+");");
                } else {
                    Recorder.recordString("Plot.setFontSize("+IJ.d2s(plotFontSize,1)+");\n");
                    Recorder.recordString("Plot.setAxisLabelSize("+IJ.d2s(labelFontSize,1)+", \""+(axisLabelBold ? "bold" : "plain")+"\");\n");
                    Recorder.recordString("Plot.setXYLabels(\""+xLabel+"\", \""+yLabel+"\");\n");
                    Recorder.recordString("Plot.setFormatFlags(\""+Integer.toString(flags,2)+"\");\n");
                }
            }
        } else if (dialogType == LEGEND) {
            gd.addMessage("Enter Labels for the datasets, one per line.\n");
            String labels = plot.getDataLabels();
            int nLines = labels.split("\n", -1).length;
            gd.addTextAreas(labels, null, Math.min(nLines+1, 20), 40);
            gd.addChoice("Legend position", LEGEND_POSITIONS, LEGEND_POSITIONS[legendPosNumber]);
            gd.addCheckbox("Transparent background", transparentBackground);
            gd.addCheckbox("Bottom-to-top", bottomUp);
            gd.showDialog();
            if (gd.wasCanceled()) return;

            labels = gd.getNextText();
            legendPosNumber = gd.getNextChoiceIndex();
            int flags = LEGEND_POSITION_N[legendPosNumber];
            transparentBackground = gd.getNextBoolean();
            bottomUp = gd.getNextBoolean();
            if (bottomUp)
                flags |= Plot.LEGEND_BOTTOM_UP;
            if (transparentBackground)
                flags |= Plot.LEGEND_TRANSPARENT;
            plot.setColor(Color.black);
            plot.setLineWidth(1);
            plot.setLegend(labels, flags);
            plot.updateImage();
            if (Recorder.record) {
                String options = LEGEND_POSITIONS[legendPosNumber];
                if (bottomUp) options+=" Bottom-To-Top";
                if (transparentBackground) options+=" Transparent";
                labels = labels.replaceAll("\n","\\\\n");
                if (Recorder.scriptMode()) {
                    Recorder.recordCall("//plot = IJ.getImage().getProperty(Plot.PROPERTY_KEY);");
                    Recorder.recordCall("plot.setColor(Color.black);");
                    Recorder.recordCall("plot.setLineWidth(1);");
                    Recorder.recordCall("plot.addLegend(\""+labels+"\", \""+options+"\");");
                } else {
                    Recorder.recordString("Plot.addLegend(\""+labels+"\", \""+options+"\");\n");
                }
            }
        } else if (dialogType == HI_RESOLUTION) {
            String title = plot.getTitle() +"_HiRes";
            title = WindowManager.makeUniqueName(title);
            gd.addStringField("Title: ", title, 20);
            gd.addNumericField("Scale factor", hiResFactor, 1);
            gd.addCheckbox("Disable anti-aliased text", !hiResAntiAliased);
            gd.showDialog();
            if (gd.wasCanceled()) return;
            title = gd.getNextString();
            double scale = gd.getNextNumber();
            if (!gd.invalidNumber() && scale>0) //more range checking is done in Plot.setScale
                hiResFactor = (float)scale;
            hiResAntiAliased = !gd.getNextBoolean();
            final ImagePlus hiresImp = plot.makeHighResolution(title, hiResFactor, hiResAntiAliased, /*showIt=*/true);
            /** The following command is needed to have the high-resolution plot as front window. Otherwise, as the
             *  dialog is owned by the original PlotWindow, the WindowManager will see the original plot as active,
             *  but the user interface will show the high-res plot as foreground window */
            EventQueue.invokeLater(new Runnable() {public void run() {IJ.selectWindow(hiresImp.getID());}});

            if (Recorder.record) {
                String options = !hiResAntiAliased ? "disable" : "";
                if (options.length() > 0)
                    options = ",\""+options+"\"";
                Recorder.recordString("Plot.makeHighResolution(\""+title+"\","+hiResFactor+options+");\n");
            }
        }
    }

    boolean getFlag(int flags, int bitMask) {
        return (flags&bitMask) != 0;
    }

    int setFlag(int flags, int bitMask, boolean state) {
        flags &= ~bitMask;
        if (state) flags |= bitMask;
        return flags;
    }

}