Example usage for java.awt.geom Rectangle2D getX

List of usage examples for java.awt.geom Rectangle2D getX

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Introduction

In this page you can find the example usage for java.awt.geom Rectangle2D getX.

Prototype

public abstract double getX();

Source Link

Document

Returns the X coordinate of the upper-left corner of the framing rectangle in double precision.

Usage

From source file:org.tsho.dmc2.core.chart.BasinRenderer.java

public void render(final Graphics2D g2, final Rectangle2D dataArea, final PlotRenderingInfo info) {
    basinComponent.setDataobject(null);//from   ww  w .  j av  a  2s  .  c o  m
    attractorsSamplePoints = new Vector();

    state = STATE_RUNNING;

    gridWidth = (int) dataArea.getWidth();
    gridHeight = (int) dataArea.getHeight();

    this.imageX = (int) dataArea.getX() + 1;
    this.imageY = (int) dataArea.getY();

    this.image = new BufferedImage(gridWidth, gridHeight, BufferedImage.TYPE_INT_RGB);
    this.g2 = g2;
    WritableRaster raster = image.getRaster();

    ValueAxis domainAxis = plot.getDomainAxis();
    ValueAxis rangeAxis = plot.getRangeAxis();

    double maxCoordinate = Math.abs(domainAxis.getUpperBound());
    if (Math.abs(domainAxis.getLowerBound()) > maxCoordinate)
        maxCoordinate = Math.abs(domainAxis.getLowerBound());
    if (Math.abs(rangeAxis.getLowerBound()) > maxCoordinate)
        maxCoordinate = Math.abs(rangeAxis.getLowerBound());
    if (Math.abs(rangeAxis.getUpperBound()) > maxCoordinate)
        maxCoordinate = Math.abs(rangeAxis.getUpperBound());
    if (infinity < maxCoordinate)
        infinity = maxCoordinate + 1;

    grid = new Grid(new double[] { domainAxis.getLowerBound(), domainAxis.getUpperBound(),
            rangeAxis.getLowerBound(), rangeAxis.getUpperBound() }, gridHeight, gridWidth);
    imageData = ((DataBufferInt) raster.getDataBuffer()).getData();
    rate = gridHeight * gridWidth / 100;
    attractorsSamplePoints = new Vector();

    BasinsAlgorithm bA = null;
    if (type == FAST_ALGORITHM)
        bA = new FastBasinsAlgorithm(this);
    else if (type == SLOW_ALGORITHM)
        bA = new SlowBasinsAlgorithm(this);
    bA.run();

    /** Now that grid is computed, pass it to the BasinComponent for possible storing */
    int[] tmp = grid.getData();
    grid.setData((int[]) tmp.clone());//from now on, grid data is disconnected from image data
    basinComponent.setDataobject(grid);

    drawImage();
    state = STATE_FINISHED;
}

From source file:unikn.dbis.univis.visualization.graph.plaf.VGraphUI.java

/**
 * Creates the listener responsible for calling the correct handlers based
 * on mouse events, and to select invidual cells.
 *//*from   ww w. jav  a  2 s  .  c  o  m*/
protected MouseListener createMouseListener() {

    return new MouseHandler() {

        /**
         * Invoked when a mouse button has been pressed on a component.
         *
         //@Override
         public void mousePressed(MouseEvent e) {
                
         Object o = graph.getFirstCellForLocation(e.getX(), e.getY());
                
         if (o instanceof VGraphCell) {
                
         VGraphCell cell = (VGraphCell) o;
                
         JPopupMenu menu = new JPopupMenu();
                
         VChartPanel chartPanel = (VChartPanel) cell.getUserObject();
                
         if (chartPanel.isShowPopUp()) {
                
         LegendItemCollection collect = chartPanel.getChart().getPlot().getLegendItems();
         JMenu first = new JMenu("1-39");
         int checker = 0;
                
         for (Iterator iter = collect.iterator(); iter.hasNext();) {
         LegendItem item = (LegendItem) iter.next();
         checker++;
         first.add(new JMenuItem(item.getLabel()));
         if ((checker % 40) == 0) {
         menu.add(first);
                
         first = new JMenu("" + checker + "-" + (checker + 39));
         }
         if (!iter.hasNext()) {
         menu.add(first);
         }
         }
                
         menu.show(graph, e.getX(), e.getY());
         }
         }
                
         super.mousePressed(e);
         }
         */

        /**
         * Invoked when a mouse button has been pressed on a component.
         */
        @Override
        public void mousePressed(MouseEvent e) {

            Object o = graph.getFirstCellForLocation(e.getX(), e.getY());

            if (SwingUtilities.isLeftMouseButton(e) && e.isAltDown()) {
                if (o instanceof VGraphCell) {

                    VGraphCell cell = (VGraphCell) o;

                    JPopupMenu menu = new JPopupMenu();

                    VChartPanel chartPanel = (VChartPanel) cell.getUserObject();

                    LegendItemCollection collect = chartPanel.getChart().getPlot().getLegendItems();
                    JMenu first = new JMenu("1-39");
                    int checker = 0;

                    for (Iterator iter = collect.iterator(); iter.hasNext();) {
                        LegendItem item = (LegendItem) iter.next();
                        checker++;
                        first.add(new JMenuItem(item.getLabel()));
                        if ((checker % 40) == 0) {
                            menu.add(first);

                            first = new JMenu("" + checker + "-" + (checker + 39));
                        }
                        if (!iter.hasNext()) {
                            menu.add(first);
                        }
                    }

                    menu.show(graph, e.getX(), e.getY());
                }
            }

            super.mousePressed(e);

            if (o != null && o instanceof VGraphCell) {

                VGraphCell cell = (VGraphCell) o;

                o = cell.getUserObject();

                if (o != null && o instanceof VChartPanel) {
                    VChartPanel chart = (VChartPanel) o;

                    for (MouseListener l : chart.getMouseListeners()) {
                        l.mousePressed(e);
                    }
                }
            }
        }

        // Event may be null when called to cancel the current operation.
        @Override
        public void mouseReleased(MouseEvent e) {
            super.mouseReleased(e);

            Object o = graph.getFirstCellForLocation(e.getX(), e.getY());

            if (o != null && o instanceof VGraphCell) {

                VGraphCell cell = (VGraphCell) o;

                o = cell.getUserObject();

                if (o != null && o instanceof VChartPanel) {
                    VChartPanel chart = (VChartPanel) o;

                    for (MouseListener l : chart.getMouseListeners()) {
                        l.mouseReleased(e);
                    }
                }
            }
        }

        /**
         * Invoked when the mouse has been clicked on a component.
         */
        @Override
        public void mouseClicked(MouseEvent e) {
            super.mouseClicked(e);

            Object o = graph.getFirstCellForLocation(e.getX(), e.getY());

            if (o != null && o instanceof VGraphCell) {

                VGraphCell cell = (VGraphCell) o;

                o = cell.getUserObject();

                if (o != null && o instanceof VChartPanel) {
                    VChartPanel chart = (VChartPanel) o;

                    if (SwingUtilities.isRightMouseButton(e)) {
                        JPopupMenu menu = chart.createPopupMenu(true, true, true, true);

                        menu.show(graph, e.getX(), e.getY());
                    }

                    /*
                    for (MouseListener l : chart.getMouseListeners()) {
                    System.out.println("LISTENS CLI");
                    l.mouseClicked(e);
                    }
                    */
                }
            }
        }

        /*
        // Event may be null when called to cancel the current operation.
        @Override
        public void mouseReleased(MouseEvent e) {
        super.mouseReleased(e);
                
        Object[] cells = graphSelectionModel.getSelectionCells();
                
        Rectangle2D bounds = graph.getCellBounds(cells);
                
        if (bounds != null) {
            Rectangle2D b2 = graph.toScreen((Rectangle2D) bounds.clone());
            graph.scrollRectToVisible(new Rectangle((int) b2.getX(), (int) b2.getY(), (int) b2.getWidth(), (int) b2.getHeight()));
        }
        }
        */

        /**
         * Invoked when the mouse pointer has been moved on a component (with no
         * buttons down).
         */
        @Override
        public void mouseMoved(MouseEvent e) {

            if (graph.isMoveable()) {
                super.mouseMoved(e);
            }

            Object o = graph.getFirstCellForLocation(e.getX(), e.getY());

            if (o != null && o instanceof VGraphCell) {

                selectedCell = (VGraphCell) o;

                Rectangle2D bounds = graph.getCellBounds(selectedCell);

                menu.show(graph, (int) (bounds.getX() + bounds.getWidth()),
                        (int) bounds.getY() + (int) (bounds.getHeight() - menu.getHeight()));
            }
        }
    };
}

From source file:ImageLabel.java

public void paint(Graphics g) {

    /*/*www  .  j  ava  2  s .  c  o m*/
     * Draw the image stretched to exactly cover the size of the drawing area.
     */
    Dimension size = getSize();
    g.drawImage(img, 0, 0, size.width, size.height, 0, 0, img.getWidth(null), img.getHeight(null), null);

    /*
     * Fill a rounded rectangle centered in the drawing area. Calculate the size
     * of the rectangle from the size of the text
     */
    g.setFont(font);
    FontRenderContext frc = ((Graphics2D) g).getFontRenderContext();
    Rectangle2D bounds = font.getStringBounds(text, frc);

    int wText = (int) bounds.getWidth();
    int hText = (int) bounds.getHeight();

    int rX = (size.width - wText) / 2;
    int rY = (size.height - hText) / 2;
    g.setColor(Color.yellow);
    g.fillRoundRect(rX, rY, wText, hText, hText / 2, hText / 2);

    /*
     * Draw text positioned in the rectangle. Since the rectangle is sized based
     * on the bounds of the String we can position it using those bounds.
     */
    int xText = rX - (int) bounds.getX();
    int yText = rY - (int) bounds.getY();
    g.setColor(Color.black);
    g.setFont(font);
    g.drawString(text, xText, yText);
}

From source file:net.sf.mzmine.modules.visualization.twod.PointTwoDXYPlot.java

public boolean render(final Graphics2D g2, final Rectangle2D dataArea, int index, PlotRenderingInfo info,
        CrosshairState crosshairState) {

    // if this is not TwoDDataSet
    if (index != 0)
        return super.render(g2, dataArea, index, info, crosshairState);

    // prepare some necessary constants
    final int x = (int) dataArea.getX();
    final int y = (int) dataArea.getY();
    final int width = (int) dataArea.getWidth();
    final int height = (int) dataArea.getHeight();

    final double imageRTMin = (double) getDomainAxis().getRange().getLowerBound();
    final double imageRTMax = (double) getDomainAxis().getRange().getUpperBound();
    final double imageRTStep = (imageRTMax - imageRTMin) / width;
    final double imageMZMin = (double) getRangeAxis().getRange().getLowerBound();
    final double imageMZMax = (double) getRangeAxis().getRange().getUpperBound();
    final double imageMZStep = (imageMZMax - imageMZMin) / height;

    // This if statement below keeps the min max values at the original values when the user
    // zooms in. We need some variables that scall as the box size so that the points we show
    // have better resolution the more someone zooms in.

    double dynamicImageRTMin = imageRTMin;
    double dynamicImageRTMax = imageRTMax;
    double dynamicImageMZMin = imageMZMin;
    double dynamicImageMZMax = imageMZMax;
    double dynamicImageRTStep = imageRTStep;
    double dynamicImageMZStep = imageMZStep;

    if ((zoomOutBitmap != null) && (imageRTMin == totalRTRange.lowerEndpoint())
            && (imageRTMax == totalRTRange.upperEndpoint()) && (imageMZMin == totalMZRange.lowerEndpoint())
            && (imageMZMax == totalMZRange.upperEndpoint()) && (zoomOutBitmap.getWidth() == width)
            && (zoomOutBitmap.getHeight() == height)) {
        g2.drawImage(zoomOutBitmap, x, y, null);
        return true;
    }/*from  ww w  .j  a v  a  2s  .  c  om*/

    // Save current time
    Date renderStartTime = new Date();

    // prepare a bitmap of required size
    //BufferedImage image = new BufferedImage(width, height,
    //BufferedImage.TYPE_INT_ARGB);

    //ArrayList<DataPoint> listOfDataPoints = new ArrayList<DataPoint>();
    //ArrayList<DataPoint> listOfRTValues = new ArrayList<DataPoint>();
    ArrayList<DataPoint> listOfDataPoints;
    ArrayList<Double> listOfRTValues;

    // These two function must be run in this order
    Range<Double> rtRangeIn = Range.closed(getDomainAxis().getRange().getLowerBound(),
            getDomainAxis().getRange().getUpperBound());
    Range<Double> mzRangeIn = Range.closed(getRangeAxis().getRange().getLowerBound(),
            getRangeAxis().getRange().getUpperBound());
    listOfDataPoints = dataset.getCentroidedDataPointsInRTMZRange(rtRangeIn, mzRangeIn);
    listOfRTValues = dataset.getrtValuesInUserRange();

    // points to be plotted
    List plotPoints = new ArrayList();

    int count = 0;

    // Store the current mz,rt,int values so that they can be outputed to a file if we want
    //currentlyPlottedMZ = new ArrayList();

    //for (Iterator dpIt = listOfDataPoints.iterator(); dpIt.hasNext();) {

    // make a list to keep track of the intesities of each
    for (DataPoint curDataPoint : listOfDataPoints) {

        //DataPoint curDataPoint = dpIt.next();
        double currentRT = listOfRTValues.get(count).doubleValue();
        double currentMZ = curDataPoint.getMZ();

        plotPoints.add(new Point2D.Double(currentRT, currentMZ));

        count += 1;

        //currentlyPlottedMZ.add()
    }

    // draw image points
    //for (int i = 0; i < width; i++)
    //    for (int j = 0; j < height; j++) {
    //   Color pointColor = paletteType.getColor(values[i][j]);
    //   //image.setRGB(i, height - j - 1, pointColor.getRGB());
    //    points.add(new Point2D.Float(i,j));
    //    }
    count = 0;
    for (Iterator i = plotPoints.iterator(); i.hasNext();) {
        Point2D.Double pt = (Point2D.Double) i.next();
        // using the ''dynamic'' min and max will make the resolution imporve as someone zooms
        // in 
        //float xPlace = (pt.x-(float)dynamicImageRTMin)/((float)dynamicImageRTStep) + x;
        //float yPlace = (pt.y-(float)dynamicImageMZMin)/((float)dynamicImageMZStep) + y;
        double xPlace = (pt.x - dynamicImageRTMin) / (dynamicImageRTStep) + (double) x;
        double yPlace = (double) height - (pt.y - dynamicImageMZMin) / (dynamicImageMZStep) + (double) y;

        //get the current intensity
        // use the R, G B for the intensity

        double curIntensity = listOfDataPoints.get(count).getIntensity();
        curIntensity = curIntensity / dataset.curMaxIntensity;

        //g2.setColor(Color.BLACK);
        Color pointColor = paletteType.getColor(curIntensity);
        g2.setColor(pointColor);
        Ellipse2D dot = new Ellipse2D.Double(xPlace - 1, yPlace - 1, 2, 2);
        g2.fill(dot);

        count += 1;
    }

    //float xPlace = ((float)42.0-(float)dynamicImageRTMin)/((float)dynamicImageRTStep)+x;
    //float yPlace = (float)height - ((float)201.02-(float)dynamicImageMZMin)/((float)dynamicImageMZStep)+y;
    //Ellipse2D dot = new Ellipse2D.Float(xPlace - 1, yPlace - 1, 2, 2);
    //g2.fill(dot);

    //g2.dispose();

    // if we are zoomed out, save the values
    if ((imageRTMin == totalRTRange.lowerEndpoint()) && (imageRTMax == totalRTRange.upperEndpoint())
            && (imageMZMin == totalMZRange.lowerEndpoint()) && (imageMZMax == totalMZRange.upperEndpoint())) {
        //zoomOutBitmap = image;
    }

    // Paint image
    //g2.drawImage(image, x, y, null);

    //g.setColor(Color.BLACK)

    Date renderFinishTime = new Date();

    logger.finest("Finished rendering 2D visualizer, "
            + (renderFinishTime.getTime() - renderStartTime.getTime()) + " ms");

    return true;

}

From source file:org.pentaho.reporting.libraries.pixie.wmf.WmfFile.java

public synchronized void draw(final Graphics2D graphics, final Rectangle2D bounds) {

    // this adjusts imageWidth and imageHeight
    scaleToFit((float) bounds.getWidth(), (float) bounds.getHeight());
    // adjust translation if needed ...
    graphics.translate(bounds.getX(), bounds.getY());
    // adjust to the image origin
    graphics.translate(-imageX, -imageY);

    this.graphics = graphics;

    for (int i = 0; i < records.size(); i++) {
        try {/*from w w w.  ja  va 2  s .co m*/
            final MfCmd command = (MfCmd) records.get(i);
            command.setScale((float) imageWidth / (float) maxWidth, (float) imageHeight / (float) maxHeight);
            command.replay(this);
        } catch (Exception e) {
            logger.warn("Error while processing image record #" + i, e);
        }
    }
    resetStates();
}

From source file:com.appnativa.rare.ui.chart.jfreechart.XYPlotEx.java

@Override
protected void fillBackground(Graphics2D g2, Rectangle2D area, PlotOrientation orientation) {
    Paint p = this.getBackgroundPaint();

    if (p == null) {
        return;/*from w w w. j av  a 2  s . c om*/
    }

    iPainter painter = ChartHelper.getPainter(p);

    if (painter == null) {
        super.fillBackground(g2, area, orientation);

        return;
    }

    Composite originalComposite = g2.getComposite();

    g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getBackgroundAlpha()));
    graphics = SwingGraphics.fromGraphics(g2, null, graphics);

    float x = UIScreen.snapToPosition(area.getX());
    float y = UIScreen.snapToPosition(area.getY());
    float w = UIScreen.snapToSize(area.getWidth());
    float h = UIScreen.snapToSize(area.getHeight());

    painter.paint(graphics, x, y, w, h, iPainter.UNKNOWN);
    g2.setComposite(originalComposite);
}

From source file:ro.nextreports.engine.util.chart.CylinderRenderer.java

/**
 * Draws a cylinder to represent one data item.
 * //  w  ww  . ja  va 2s .  c om
 * @param g2 the graphics device.
 * @param state the renderer state.
 * @param dataArea the area for plotting the data.
 * @param plot the plot.
 * @param domainAxis the domain axis.
 * @param rangeAxis the range axis.
 * @param dataset the dataset.
 * @param row the row index (zero-based).
 * @param column the column index (zero-based).
 * @param pass the pass index.
 */
public void drawItem(Graphics2D g2, CategoryItemRendererState state, Rectangle2D dataArea, CategoryPlot plot,
        CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass) {

    // check the value we are plotting...
    Number dataValue = dataset.getValue(row, column);
    if (dataValue == null) {
        return;
    }

    double value = dataValue.doubleValue();

    Rectangle2D adjusted = new Rectangle2D.Double(dataArea.getX(), dataArea.getY() + getYOffset(),
            dataArea.getWidth() - getXOffset(), dataArea.getHeight() - getYOffset());

    PlotOrientation orientation = plot.getOrientation();

    double barW0 = calculateBarW0(plot, orientation, adjusted, domainAxis, state, row, column);
    double[] barL0L1 = calculateBarL0L1(value);
    if (barL0L1 == null) {
        return; // the bar is not visible
    }

    RectangleEdge edge = plot.getRangeAxisEdge();
    float transL0 = (float) rangeAxis.valueToJava2D(barL0L1[0], adjusted, edge);
    float transL1 = (float) rangeAxis.valueToJava2D(barL0L1[1], adjusted, edge);
    float barL0 = Math.min(transL0, transL1);
    float barLength = Math.abs(transL1 - transL0);

    // draw the bar...
    GeneralPath bar = new GeneralPath();
    if (orientation == PlotOrientation.HORIZONTAL) {
        bar.moveTo(barL0, (float) barW0);
        bar.lineTo(barL0, (float) (barW0 + state.getBarWidth()));
        bar.lineTo(barL0 + barLength, (float) (barW0 + state.getBarWidth()));
        bar.lineTo(barL0 + barLength, (float) barW0);
        bar.closePath();
    } else {
        bar.moveTo((float) barW0, (float) (barL0 - getYOffset() / 2));
        bar.lineTo((float) barW0, (float) (barL0 + barLength - getYOffset() / 2));
        Arc2D arc = new Arc2D.Double(barW0, (barL0 + barLength - getYOffset()), state.getBarWidth(),
                getYOffset(), 180, 180, Arc2D.OPEN);
        bar.append(arc, true);
        bar.lineTo((float) (barW0 + state.getBarWidth()), (float) (barL0 - getYOffset() / 2));
        arc = new Arc2D.Double(barW0, (barL0 - getYOffset()), state.getBarWidth(), getYOffset(), 0, -180,
                Arc2D.OPEN);
        bar.append(arc, true);
        bar.closePath();
    }
    Paint itemPaint = getItemPaint(row, column);
    if (getGradientPaintTransformer() != null && itemPaint instanceof GradientPaint) {
        GradientPaint gp = (GradientPaint) itemPaint;
        itemPaint = getGradientPaintTransformer().transform(gp, bar);
    }
    g2.setPaint(itemPaint);
    g2.fill(bar);

    Shape bar3dTop = new Ellipse2D.Double(barW0, barL0 - getYOffset(), state.getBarWidth(), getYOffset());
    if (itemPaint instanceof GradientPaint) {
        g2.setPaint(((GradientPaint) itemPaint).getColor2());
    }
    g2.fill(bar3dTop);

    if (isDrawBarOutline() && state.getBarWidth() > BAR_OUTLINE_WIDTH_THRESHOLD) {
        g2.setStroke(getItemOutlineStroke(row, column));
        g2.setPaint(getItemOutlinePaint(row, column));
        g2.draw(bar);
        if (bar3dTop != null) {
            g2.draw(bar3dTop);
        }
    }

    CategoryItemLabelGenerator generator = getItemLabelGenerator(row, column);
    if (generator != null && isItemLabelVisible(row, column)) {
        drawItemLabel(g2, dataset, row, column, plot, generator, bar.getBounds2D(), (value < 0.0));
    }

    // collect entity and tool tip information...
    if (state.getInfo() != null) {
        EntityCollection entities = state.getEntityCollection();
        if (entities != null) {

            String tip = null;
            CategoryToolTipGenerator tipster = getToolTipGenerator(row, column);
            if (tipster != null) {
                tip = tipster.generateToolTip(dataset, row, column);
            }
            String url = null;
            if (getItemURLGenerator(row, column) != null) {
                url = getItemURLGenerator(row, column).generateURL(dataset, row, column);
            }
            CategoryItemEntity entity = new CategoryItemEntity(bar.getBounds2D(), tip, url, dataset,
                    dataset.getRowKey(row), dataset.getColumnKey(column));
            entities.add(entity);
        }
    }

}

From source file:fr.amap.commons.javafx.chart.ChartViewer.java

/**
 * A handler for the export to JPEG option in the context menu.
 *//*from   w ww  .  j a v  a  2s . com*/
private void handleExportToJPEG() {
    FileChooser fileChooser = new FileChooser();
    fileChooser.setTitle("Export to JPEG");
    fileChooser.setSelectedExtensionFilter(new FileChooser.ExtensionFilter("JPEG", "jpg"));
    File file = fileChooser.showSaveDialog(stage);
    if (file != null) {
        try {
            CanvasPositionsAndSize canvasPositionAndSize = getCanvasPositionAndSize();

            BufferedImage image = new BufferedImage((int) canvasPositionAndSize.totalWidth,
                    (int) canvasPositionAndSize.totalHeight, BufferedImage.TYPE_INT_RGB);
            Graphics2D g2 = image.createGraphics();

            int index = 0;
            for (ChartCanvas canvas : chartCanvasList) {

                Rectangle2D rectangle2D = canvasPositionAndSize.positionsAndSizes.get(index);

                ((Drawable) canvas.chart).draw(g2, new Rectangle((int) rectangle2D.getX(),
                        (int) rectangle2D.getY(), (int) rectangle2D.getWidth(), (int) rectangle2D.getHeight()));
                index++;
            }

            try (OutputStream out = new BufferedOutputStream(new FileOutputStream(file))) {
                ImageIO.write(image, "jpg", out);
            }

            /*ExportUtils.writeAsJPEG(chartCanvasList.get(0).chart, (int)chartCanvasList.get(0).getWidth(),
                (int)chartCanvasList.get(0).getHeight(), file);*/
        } catch (IOException ex) {
            // FIXME: show a dialog with the error
        }
    }
}

From source file:fr.amap.commons.javafx.chart.ChartViewer.java

/**
 * A handler for the export to PNG option in the context menu.
 */// w  w  w .  j  a v a2 s  .  c o  m
private void handleExportToPNG() {
    FileChooser fileChooser = new FileChooser();
    fileChooser.setTitle("Export to PNG");
    fileChooser.setSelectedExtensionFilter(
            new FileChooser.ExtensionFilter("Portable Network Graphics (PNG)", "png"));
    File file = fileChooser.showSaveDialog(stage);

    if (file != null) {
        try {

            CanvasPositionsAndSize canvasPositionAndSize = getCanvasPositionAndSize();

            BufferedImage image = new BufferedImage((int) canvasPositionAndSize.totalWidth,
                    (int) canvasPositionAndSize.totalHeight, BufferedImage.TYPE_INT_ARGB);
            Graphics2D g2 = image.createGraphics();

            int index = 0;
            for (ChartCanvas canvas : chartCanvasList) {

                Rectangle2D rectangle2D = canvasPositionAndSize.positionsAndSizes.get(index);

                ((Drawable) canvas.chart).draw(g2, new Rectangle((int) rectangle2D.getX(),
                        (int) rectangle2D.getY(), (int) rectangle2D.getWidth(), (int) rectangle2D.getHeight()));
                index++;
            }

            try (OutputStream out = new BufferedOutputStream(new FileOutputStream(file))) {
                ImageIO.write(image, "png", out);
            }

        } catch (IOException ex) {
            // FIXME: show a dialog with the error
        }
    }
}

From source file:com.bdaum.zoom.report.internal.jfree.custom.CylinderRenderer.java

/**
 * Draws a cylinder to represent one data item.
 *
 * @param g2  the graphics device./*  w  w  w. jav a  2s . c  om*/
 * @param state  the renderer state.
 * @param dataArea  the area for plotting the data.
 * @param plot  the plot.
 * @param domainAxis  the domain axis.
 * @param rangeAxis  the range axis.
 * @param dataset  the dataset.
 * @param row  the row index (zero-based).
 * @param column  the column index (zero-based).
 * @param pass  the pass index.
 */
public void drawItem(Graphics2D g2, CategoryItemRendererState state, Rectangle2D dataArea, CategoryPlot plot,
        CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass) {

    // check the value we are plotting...
    Number dataValue = dataset.getValue(row, column);
    if (dataValue == null) {
        return;
    }

    double value = dataValue.doubleValue();

    Rectangle2D adjusted = new Rectangle2D.Double(dataArea.getX(), dataArea.getY() + getYOffset(),
            dataArea.getWidth() - getXOffset(), dataArea.getHeight() - getYOffset());

    PlotOrientation orientation = plot.getOrientation();

    double barW0 = calculateBarW0(plot, orientation, adjusted, domainAxis, state, row, column);
    double[] barL0L1 = calculateBarL0L1(value);
    if (barL0L1 == null) {
        return; // the bar is not visible
    }

    RectangleEdge edge = plot.getRangeAxisEdge();
    float transL0 = (float) rangeAxis.valueToJava2D(barL0L1[0], adjusted, edge);
    float transL1 = (float) rangeAxis.valueToJava2D(barL0L1[1], adjusted, edge);
    float barL0 = Math.min(transL0, transL1);
    float barLength = Math.abs(transL1 - transL0);

    // draw the bar...
    GeneralPath bar = new GeneralPath();
    Shape top = null;
    if (orientation == PlotOrientation.HORIZONTAL) {
        bar.moveTo((float) (barL0 + getXOffset() / 2), (float) barW0);
        bar.lineTo((float) (barL0 + barLength + getXOffset() / 2), (float) barW0);
        Arc2D arc = new Arc2D.Double(barL0 + barLength, barW0, getXOffset(), state.getBarWidth(), 90, 180,
                Arc2D.OPEN);
        bar.append(arc, true);
        bar.lineTo((float) (barL0 + getXOffset() / 2), (float) (barW0 + state.getBarWidth()));
        arc = new Arc2D.Double(barL0, barW0, getXOffset(), state.getBarWidth(), 270, -180, Arc2D.OPEN);
        bar.append(arc, true);
        bar.closePath();
        top = new Ellipse2D.Double(barL0 + barLength, barW0, getXOffset(), state.getBarWidth());

    } else {
        bar.moveTo((float) barW0, (float) (barL0 - getYOffset() / 2));
        bar.lineTo((float) barW0, (float) (barL0 + barLength - getYOffset() / 2));
        Arc2D arc = new Arc2D.Double(barW0, (barL0 + barLength - getYOffset()), state.getBarWidth(),
                getYOffset(), 180, 180, Arc2D.OPEN);
        bar.append(arc, true);
        bar.lineTo((float) (barW0 + state.getBarWidth()), (float) (barL0 - getYOffset() / 2));
        arc = new Arc2D.Double(barW0, (barL0 - getYOffset()), state.getBarWidth(), getYOffset(), 0, -180,
                Arc2D.OPEN);
        bar.append(arc, true);
        bar.closePath();

        top = new Ellipse2D.Double(barW0, barL0 - getYOffset(), state.getBarWidth(), getYOffset());
    }
    Paint itemPaint = getItemPaint(row, column);
    if (getGradientPaintTransformer() != null && itemPaint instanceof GradientPaint) {
        GradientPaint gp = (GradientPaint) itemPaint;
        itemPaint = getGradientPaintTransformer().transform(gp, bar);
    }
    g2.setPaint(itemPaint);
    g2.fill(bar);

    if (itemPaint instanceof GradientPaint) {
        g2.setPaint(((GradientPaint) itemPaint).getColor2());
    } else {
        g2.setPaint(PaintAlpha.darker(itemPaint)); // bd
    }
    if (top != null) {
        g2.fill(top);
    }

    if (isDrawBarOutline() && state.getBarWidth() > BAR_OUTLINE_WIDTH_THRESHOLD) {
        g2.setStroke(getItemOutlineStroke(row, column));
        g2.setPaint(getItemOutlinePaint(row, column));
        g2.draw(bar);
        if (top != null) {
            g2.draw(top);
        }
    }

    CategoryItemLabelGenerator generator = getItemLabelGenerator(row, column);
    if (generator != null && isItemLabelVisible(row, column)) {
        drawItemLabel(g2, dataset, row, column, plot, generator, bar.getBounds2D(), (value < 0.0));
    }

    // collect entity and tool tip information...
    if (state.getInfo() != null) {
        EntityCollection entities = state.getEntityCollection();
        if (entities != null) {
            String tip = null;
            CategoryToolTipGenerator tipster = getToolTipGenerator(row, column);
            if (tipster != null) {
                tip = tipster.generateToolTip(dataset, row, column);
            }
            String url = null;
            if (getItemURLGenerator(row, column) != null) {
                url = getItemURLGenerator(row, column).generateURL(dataset, row, column);
            }
            CategoryItemEntity entity = new CategoryItemEntity(bar.getBounds2D(), tip, url, dataset,
                    dataset.getRowKey(row), dataset.getColumnKey(column));
            entities.add(entity);
        }
    }

}