Java Code Examples for java.awt.BasicStroke#CAP_ROUND

/**
 * Returns the AWT line cap corresponding to the specified SWT line cap.
 *
 * @param swtLineCap  the SWT line cap.
 *
 * @return The AWT line cap.
 */
private int toAwtLineCap(int swtLineCap) {
    if (swtLineCap == SWT.CAP_FLAT) {
        return BasicStroke.CAP_BUTT;
    }
    else if (swtLineCap == SWT.CAP_ROUND) {
        return BasicStroke.CAP_ROUND;
    }
    else if (swtLineCap == SWT.CAP_SQUARE) {
        return BasicStroke.CAP_SQUARE;
    }
    else {
        throw new IllegalArgumentException("SWT LineCap " + swtLineCap
            + " not recognised");
    }
}
 

/**
 * Creates a dashed border of the specified {@code paint}, {@code thickness},
 * line shape, relative {@code length}, and relative {@code spacing}.
 * If the specified {@code paint} is {@code null},
 * the component's foreground color will be used to render the border.
 *
 * @param paint      the {@link Paint} object used to generate a color
 * @param thickness  the width of a dash line
 * @param length     the relative length of a dash line
 * @param spacing    the relative spacing between dash lines
 * @param rounded    whether or not line ends should be round
 * @return the {@code Border} object
 *
 * @throws IllegalArgumentException if the specified {@code thickness} is less than {@code 1}, or
 *                                  if the specified {@code length} is less than {@code 1}, or
 *                                  if the specified {@code spacing} is less than {@code 0}
 * @since 1.7
 */
public static Border createDashedBorder(Paint paint, float thickness, float length, float spacing, boolean rounded) {
    boolean shared = !rounded && (paint == null) && (thickness == 1.0f) && (length == 1.0f) && (spacing == 1.0f);
    if (shared && (sharedDashedBorder != null)) {
        return sharedDashedBorder;
    }
    if (thickness < 1.0f) {
        throw new IllegalArgumentException("thickness is less than 1");
    }
    if (length < 1.0f) {
        throw new IllegalArgumentException("length is less than 1");
    }
    if (spacing < 0.0f) {
        throw new IllegalArgumentException("spacing is less than 0");
    }
    int cap = rounded ? BasicStroke.CAP_ROUND : BasicStroke.CAP_SQUARE;
    int join = rounded ? BasicStroke.JOIN_ROUND : BasicStroke.JOIN_MITER;
    float[] array = { thickness * (length - 1.0f), thickness * (spacing + 1.0f) };
    Border border = createStrokeBorder(new BasicStroke(thickness, cap, join, thickness * 2.0f, array, 0.0f), paint);
    if (shared) {
        sharedDashedBorder = border;
    }
    return border;
}
 

/**
 * Returns the AWT line cap corresponding to the specified SWT line cap.
 *
 * @param swtLineCap  the SWT line cap.
 *
 * @return The AWT line cap.
 */
private int toAwtLineCap(int swtLineCap) {
    if (swtLineCap == SWT.CAP_FLAT) {
        return BasicStroke.CAP_BUTT;
    }
    else if (swtLineCap == SWT.CAP_ROUND) {
        return BasicStroke.CAP_ROUND;
    }
    else if (swtLineCap == SWT.CAP_SQUARE) {
        return BasicStroke.CAP_SQUARE;
    }
    else {
        throw new IllegalArgumentException("SWT LineCap " + swtLineCap
            + " not recognised");
    }
}
 

/**
 * Creates a dashed border of the specified {@code paint}, {@code thickness},
 * line shape, relative {@code length}, and relative {@code spacing}.
 * If the specified {@code paint} is {@code null},
 * the component's foreground color will be used to render the border.
 *
 * @param paint      the {@link Paint} object used to generate a color
 * @param thickness  the width of a dash line
 * @param length     the relative length of a dash line
 * @param spacing    the relative spacing between dash lines
 * @param rounded    whether or not line ends should be round
 * @return the {@code Border} object
 *
 * @throws IllegalArgumentException if the specified {@code thickness} is less than {@code 1}, or
 *                                  if the specified {@code length} is less than {@code 1}, or
 *                                  if the specified {@code spacing} is less than {@code 0}
 * @since 1.7
 */
public static Border createDashedBorder(Paint paint, float thickness, float length, float spacing, boolean rounded) {
    boolean shared = !rounded && (paint == null) && (thickness == 1.0f) && (length == 1.0f) && (spacing == 1.0f);
    if (shared && (sharedDashedBorder != null)) {
        return sharedDashedBorder;
    }
    if (thickness < 1.0f) {
        throw new IllegalArgumentException("thickness is less than 1");
    }
    if (length < 1.0f) {
        throw new IllegalArgumentException("length is less than 1");
    }
    if (spacing < 0.0f) {
        throw new IllegalArgumentException("spacing is less than 0");
    }
    int cap = rounded ? BasicStroke.CAP_ROUND : BasicStroke.CAP_SQUARE;
    int join = rounded ? BasicStroke.JOIN_ROUND : BasicStroke.JOIN_MITER;
    float[] array = { thickness * (length - 1.0f), thickness * (spacing + 1.0f) };
    Border border = createStrokeBorder(new BasicStroke(thickness, cap, join, thickness * 2.0f, array, 0.0f), paint);
    if (shared) {
        sharedDashedBorder = border;
    }
    return border;
}
 

/**
 * Creates a dashed border of the specified {@code paint}, {@code thickness},
 * line shape, relative {@code length}, and relative {@code spacing}.
 * If the specified {@code paint} is {@code null},
 * the component's foreground color will be used to render the border.
 *
 * @param paint      the {@link Paint} object used to generate a color
 * @param thickness  the width of a dash line
 * @param length     the relative length of a dash line
 * @param spacing    the relative spacing between dash lines
 * @param rounded    whether or not line ends should be round
 * @return the {@code Border} object
 *
 * @throws IllegalArgumentException if the specified {@code thickness} is less than {@code 1}, or
 *                                  if the specified {@code length} is less than {@code 1}, or
 *                                  if the specified {@code spacing} is less than {@code 0}
 * @since 1.7
 */
public static Border createDashedBorder(Paint paint, float thickness, float length, float spacing, boolean rounded) {
    boolean shared = !rounded && (paint == null) && (thickness == 1.0f) && (length == 1.0f) && (spacing == 1.0f);
    if (shared && (sharedDashedBorder != null)) {
        return sharedDashedBorder;
    }
    if (thickness < 1.0f) {
        throw new IllegalArgumentException("thickness is less than 1");
    }
    if (length < 1.0f) {
        throw new IllegalArgumentException("length is less than 1");
    }
    if (spacing < 0.0f) {
        throw new IllegalArgumentException("spacing is less than 0");
    }
    int cap = rounded ? BasicStroke.CAP_ROUND : BasicStroke.CAP_SQUARE;
    int join = rounded ? BasicStroke.JOIN_ROUND : BasicStroke.JOIN_MITER;
    float[] array = { thickness * (length - 1.0f), thickness * (spacing + 1.0f) };
    Border border = createStrokeBorder(new BasicStroke(thickness, cap, join, thickness * 2.0f, array, 0.0f), paint);
    if (shared) {
        sharedDashedBorder = border;
    }
    return border;
}
 

/**
 * Maps a line cap code from AWT to the corresponding JavaFX StrokeLineCap
 * enum value.
 * 
 * @param c  the line cap code.
 * 
 * @return A JavaFX line cap value. 
 */
private StrokeLineCap awtToJavaFXLineCap(int c) {
    if (c == BasicStroke.CAP_BUTT) {
        return StrokeLineCap.BUTT;
    } else if (c == BasicStroke.CAP_ROUND) {
        return StrokeLineCap.ROUND;
    } else if (c == BasicStroke.CAP_SQUARE) {
        return StrokeLineCap.SQUARE;
    } else {
        throw new IllegalArgumentException("Unrecognised cap code: " + c);
    }
}
 

/**
 * Creates a new instance.
 *
 * @param datasetIndex  the dataset index.
 */
public Pin(int datasetIndex) {
    super(datasetIndex);
    this.paint = Color.red;
    this.stroke = new BasicStroke(3.0f, BasicStroke.CAP_ROUND,
            BasicStroke.JOIN_BEVEL);
}
 

private void initDefaultValues() {
    markPaint = new Color(80, 80, 80);
    oddPerfPaint = Color.BLACK;
    evenPerfPaint = Color.WHITE;

    markStroke = new BasicStroke(2.8f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
    oddPerfStroke = new BasicStroke(1f, BasicStroke.CAP_SQUARE, BasicStroke.JOIN_BEVEL, 0, new float[] { 1.0f, 3.0f }, 0);
    evenPerfStroke = new BasicStroke(1f, BasicStroke.CAP_SQUARE, BasicStroke.JOIN_BEVEL, 0, new float[] { 1.0f, 3.0f }, 2);

    selectionExtent = 3;
}
 

/**
 * Convert a sld line cap definition to the java awt value. 
 * 
 * @param sldCap the sld cap string.
 * @return the awt value.
 */
public static int sld2awtCap( String sldCap ) {
    if (sldCap.equals("") || sldCap.equals(lineCapNames[1])) {
        return BasicStroke.CAP_BUTT;
    } else if (sldCap.equals(lineCapNames[2])) {
        return BasicStroke.CAP_ROUND;
    } else if (sldCap.equals(lineCapNames[3])) {
        return BasicStroke.CAP_SQUARE;
    } else {
        throw new IllegalArgumentException("unsupported line cap");
    }
}
 

/**
 * Maps a line cap code from AWT to the corresponding JavaFX StrokeLineCap
 * enum value.
 * 
 * @param c  the line cap code.
 * 
 * @return A JavaFX line cap value. 
 */
private StrokeLineCap awtToJavaFXLineCap(int c) {
    if (c == BasicStroke.CAP_BUTT) {
        return StrokeLineCap.BUTT;
    } else if (c == BasicStroke.CAP_ROUND) {
        return StrokeLineCap.ROUND;
    } else if (c == BasicStroke.CAP_SQUARE) {
        return StrokeLineCap.SQUARE;
    } else {
        throw new IllegalArgumentException("Unrecognised cap code: " + c);
    }
}
 

protected boolean selectStylePen(int cap, int join, float width,
                                 Color color) {

    long endCap;
    long lineJoin;

    float[] rgb = color.getRGBColorComponents(null);

    switch(cap) {
    case BasicStroke.CAP_BUTT: endCap = PS_ENDCAP_FLAT; break;
    case BasicStroke.CAP_ROUND: endCap = PS_ENDCAP_ROUND; break;
    default:
    case BasicStroke.CAP_SQUARE: endCap = PS_ENDCAP_SQUARE; break;
    }

    switch(join) {
    case BasicStroke.JOIN_BEVEL:lineJoin = PS_JOIN_BEVEL; break;
    default:
    case BasicStroke.JOIN_MITER:lineJoin = PS_JOIN_MITER; break;
    case BasicStroke.JOIN_ROUND:lineJoin = PS_JOIN_ROUND; break;
    }

    return (selectStylePen(getPrintDC(), endCap, lineJoin, width,
                           (int) (rgb[0] * MAX_WCOLOR),
                           (int) (rgb[1] * MAX_WCOLOR),
                           (int) (rgb[2] * MAX_WCOLOR)));
}
 

/**
 * Creates a new instance.
 * 
 * @param datasetIndex  the dataset index.
 */
public Pin(int datasetIndex) {
    super(datasetIndex);
    this.paint = Color.red;
    this.stroke = new BasicStroke(3.0f, BasicStroke.CAP_ROUND, 
            BasicStroke.JOIN_BEVEL);
}
 

public void resetAll() {
  this.w = 1.5f;
  this.miterlimit = 2.f;
  this.dashphase = 0;
  this.cap = BasicStroke.CAP_ROUND;
  this.join = BasicStroke.JOIN_MITER;
  this.array = new float[] {10.f};
  stroke = null;
}
 

/**
 * Draw a line using a pen created using the specified color
 * and current stroke properties.
 */
@Override
protected void deviceDrawLine(int xBegin, int yBegin, int xEnd, int yEnd,
                              Color color) {
    Stroke stroke = getStroke();

    if (stroke instanceof BasicStroke) {
        BasicStroke lineStroke = (BasicStroke) stroke;

        if (lineStroke.getDashArray() != null) {
            draw(new Line2D.Float(xBegin, yBegin, xEnd, yEnd));
            return;
        }

        float lineWidth = lineStroke.getLineWidth();
        Point2D.Float penSize = new Point2D.Float(lineWidth, lineWidth);

        AffineTransform deviceTransform = getTransform();
        deviceTransform.deltaTransform(penSize, penSize);

        float deviceLineWidth = Math.min(Math.abs(penSize.x),
                                         Math.abs(penSize.y));

        Point2D.Float begin_pos = new Point2D.Float(xBegin, yBegin);
        deviceTransform.transform(begin_pos, begin_pos);

        Point2D.Float end_pos = new Point2D.Float(xEnd, yEnd);
        deviceTransform.transform(end_pos, end_pos);

        int endCap = lineStroke.getEndCap();
        int lineJoin = lineStroke.getLineJoin();

        /* check if it's a one-pixel line */
        if ((end_pos.getX() == begin_pos.getX())
            && (end_pos.getY() == begin_pos.getY())) {

            /* endCap other than Round will not print!
             * due to Windows GDI limitation, force it to CAP_ROUND
             */
            endCap = BasicStroke.CAP_ROUND;
        }


        WPrinterJob wPrinterJob = (WPrinterJob) getPrinterJob();

        /* call native function that creates pen with style */
        if (wPrinterJob.selectStylePen(endCap, lineJoin,
                                       deviceLineWidth, color)) {
            wPrinterJob.moveTo((float)begin_pos.getX(),
                               (float)begin_pos.getY());
            wPrinterJob.lineTo((float)end_pos.getX(),
                               (float)end_pos.getY());
        }
        /* selectStylePen is not supported, must be Win 9X */
        else {

            /* let's see if we can use a a default pen
             *  if it's round end (Windows' default style)
             *  or it's vertical/horizontal
             *  or stroke is too thin.
             */
            double lowerRes = Math.min(wPrinterJob.getXRes(),
                                       wPrinterJob.getYRes());

            if ((endCap == BasicStroke.CAP_ROUND) ||
             (((xBegin == xEnd) || (yBegin == yEnd)) &&
             (deviceLineWidth/lowerRes < MAX_THINLINE_INCHES))) {

                wPrinterJob.selectPen(deviceLineWidth, color);
                wPrinterJob.moveTo((float)begin_pos.getX(),
                                   (float)begin_pos.getY());
                wPrinterJob.lineTo((float)end_pos.getX(),
                                   (float)end_pos.getY());
            }
            else {
                draw(new Line2D.Float(xBegin, yBegin, xEnd, yEnd));
            }
        }
    }
}
 

private JFreeChart createChart(XYDataset dataset) {
	// create the chart...
	JFreeChart chart = ChartFactory.createXYLineChart(null,      // chart title
			null,                      // x axis label
			null,                      // y axis label
			dataset,                  // data
			PlotOrientation.VERTICAL, true,                     // include legend
			true,                     // tooltips
			false                     // urls
			);

	chart.setBackgroundPaint(Color.white);

	// get a reference to the plot for further customisation...
	XYPlot plot = (XYPlot) chart.getPlot();
	plot.setBackgroundPaint(Color.WHITE);
	plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
	plot.setDomainGridlinePaint(Color.LIGHT_GRAY);
	plot.setRangeGridlinePaint(Color.LIGHT_GRAY);

	ValueAxis valueAxis = plot.getRangeAxis();
	valueAxis.setLabelFont(PlotterAdapter.LABEL_FONT_BOLD);
	valueAxis.setTickLabelFont(PlotterAdapter.LABEL_FONT);

	ValueAxis domainAxis = plot.getDomainAxis();
	domainAxis.setLabelFont(PlotterAdapter.LABEL_FONT_BOLD);
	domainAxis.setTickLabelFont(PlotterAdapter.LABEL_FONT);

	DeviationRenderer renderer = new DeviationRenderer(true, false);
	Stroke stroke = new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
	if (dataset.getSeriesCount() == 1) {
		renderer.setSeriesStroke(0, stroke);
		renderer.setSeriesPaint(0, Color.RED);
		renderer.setSeriesFillPaint(0, Color.RED);
	} else if (dataset.getSeriesCount() == 2) {
		renderer.setSeriesStroke(0, stroke);
		renderer.setSeriesPaint(0, Color.RED);
		renderer.setSeriesFillPaint(0, Color.RED);

		renderer.setSeriesStroke(1, stroke);
		renderer.setSeriesPaint(1, Color.BLUE);
		renderer.setSeriesFillPaint(1, Color.BLUE);
	} else {
		for (int i = 0; i < dataset.getSeriesCount(); i++) {
			renderer.setSeriesStroke(i, stroke);
			Color color = colorProvider.getPointColor((double) i / (double) (dataset.getSeriesCount() - 1));
			renderer.setSeriesPaint(i, color);
			renderer.setSeriesFillPaint(i, color);
		}
	}
	renderer.setAlpha(0.12f);
	plot.setRenderer(renderer);

	// legend settings
	LegendTitle legend = chart.getLegend();
	if (legend != null) {
		legend.setPosition(RectangleEdge.TOP);
		legend.setFrame(BlockBorder.NONE);
		legend.setHorizontalAlignment(HorizontalAlignment.LEFT);
		legend.setItemFont(PlotterAdapter.LABEL_FONT);
	}
	return chart;
}
 

protected BasicStroke getAnotherObject() {
    float[] f = {1.0f, 2.0f, 3.0f, 4.0f};
    return new BasicStroke(f[1], BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND, f[2], f, f[3]);
}
 

/**
 * Sets the stroke for this graphics context.  For now, this implementation
 * only recognises the {@link BasicStroke} class.
 * 
 * @param stroke  the stroke (<code>null</code> not permitted).
 * 
 * @see #getStroke()
 */
public void setStroke(Stroke stroke) {
    if (stroke instanceof BasicStroke) {
        BasicStroke bs = (BasicStroke) stroke;
        // linewidth
        this.gc.setLineWidth((int) bs.getLineWidth());

        // line join
        switch (bs.getLineJoin()) {
            case BasicStroke.JOIN_BEVEL :
                this.gc.setLineJoin(SWT.JOIN_BEVEL);
                break;
            case BasicStroke.JOIN_MITER :
                this.gc.setLineJoin(SWT.JOIN_MITER);
                break;
            case BasicStroke.JOIN_ROUND :
                this.gc.setLineJoin(SWT.JOIN_ROUND);
                break;
        }

        // line cap
        switch (bs.getEndCap()) {
            case BasicStroke.CAP_BUTT :
                this.gc.setLineCap(SWT.CAP_FLAT);
                break;
            case BasicStroke.CAP_ROUND :
                this.gc.setLineCap(SWT.CAP_ROUND);
                break;
            case BasicStroke.CAP_SQUARE :
                this.gc.setLineCap(SWT.CAP_SQUARE);
                break;
        }

        // set the line style to solid by default
        this.gc.setLineStyle(SWT.LINE_SOLID);

        // apply dash style if any
        float[] dashes = bs.getDashArray();
        if (dashes != null) {
            int[] swtDashes = new int[dashes.length];
            for (int i = 0; i < swtDashes.length; i++) {
                swtDashes[i] = (int) dashes[i];
            }
            this.gc.setLineDash(swtDashes);
        }
    }
    else {
        throw new RuntimeException(
                "Can only handle 'Basic Stroke' at present.");
    }
}
 

ContinuousXYPainter(float lineWidth, Color lineColor, Color fillColor,
                    double dataFactor, PointsComputer computer) {

    super((int)Math.ceil(lineWidth), fillColor != null, dataFactor);

    if (lineColor == null && fillColor == null)
        throw new IllegalArgumentException("lineColor or fillColor must not be null"); // NOI18N

    this.lineWidth = (int)Math.ceil(lineWidth);
    this.lineColor = Utils.checkedColor(lineColor);
    this.fillColor = Utils.checkedColor(fillColor);

    definingColor = lineColor != null ? lineColor : fillColor;

    this.lineStroke = new BasicStroke(lineWidth, BasicStroke.CAP_ROUND,
                                      BasicStroke.JOIN_ROUND);

    this.computer = computer;
}
 

/**
 * Draw a line using a pen created using the specified color
 * and current stroke properties.
 */
@Override
protected void deviceDrawLine(int xBegin, int yBegin, int xEnd, int yEnd,
                              Color color) {
    Stroke stroke = getStroke();

    if (stroke instanceof BasicStroke) {
        BasicStroke lineStroke = (BasicStroke) stroke;

        if (lineStroke.getDashArray() != null) {
            draw(new Line2D.Float(xBegin, yBegin, xEnd, yEnd));
            return;
        }

        float lineWidth = lineStroke.getLineWidth();
        Point2D.Float penSize = new Point2D.Float(lineWidth, lineWidth);

        AffineTransform deviceTransform = getTransform();
        deviceTransform.deltaTransform(penSize, penSize);

        float deviceLineWidth = Math.min(Math.abs(penSize.x),
                                         Math.abs(penSize.y));

        Point2D.Float begin_pos = new Point2D.Float(xBegin, yBegin);
        deviceTransform.transform(begin_pos, begin_pos);

        Point2D.Float end_pos = new Point2D.Float(xEnd, yEnd);
        deviceTransform.transform(end_pos, end_pos);

        int endCap = lineStroke.getEndCap();
        int lineJoin = lineStroke.getLineJoin();

        /* check if it's a one-pixel line */
        if ((end_pos.getX() == begin_pos.getX())
            && (end_pos.getY() == begin_pos.getY())) {

            /* endCap other than Round will not print!
             * due to Windows GDI limitation, force it to CAP_ROUND
             */
            endCap = BasicStroke.CAP_ROUND;
        }


        WPrinterJob wPrinterJob = (WPrinterJob) getPrinterJob();

        /* call native function that creates pen with style */
        if (wPrinterJob.selectStylePen(endCap, lineJoin,
                                       deviceLineWidth, color)) {
            wPrinterJob.moveTo((float)begin_pos.getX(),
                               (float)begin_pos.getY());
            wPrinterJob.lineTo((float)end_pos.getX(),
                               (float)end_pos.getY());
        }
        /* selectStylePen is not supported, must be Win 9X */
        else {

            /* let's see if we can use a a default pen
             *  if it's round end (Windows' default style)
             *  or it's vertical/horizontal
             *  or stroke is too thin.
             */
            double lowerRes = Math.min(wPrinterJob.getXRes(),
                                       wPrinterJob.getYRes());

            if ((endCap == BasicStroke.CAP_ROUND) ||
             (((xBegin == xEnd) || (yBegin == yEnd)) &&
             (deviceLineWidth/lowerRes < MAX_THINLINE_INCHES))) {

                wPrinterJob.selectPen(deviceLineWidth, color);
                wPrinterJob.moveTo((float)begin_pos.getX(),
                                   (float)begin_pos.getY());
                wPrinterJob.lineTo((float)end_pos.getX(),
                                   (float)end_pos.getY());
            }
            else {
                draw(new Line2D.Float(xBegin, yBegin, xEnd, yEnd));
            }
        }
    }
}
 

/**
 * Get the configuration of the Stroke in such way as to have a dashed line.
 *
 * @return the basic stroke representing a dashed line
 */
public static BasicStroke getDashedStroke() {
    return new BasicStroke(1f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND, 1f, new float[]{2f}, 0f);
}