Examples with Composite java.awt.Composite used on opensource projects

Example 46 with Composite

use of java.awt.Composite in project cytoscape-impl by cytoscape.

the class ArrowAnnotationImpl method drawArrow.

public void drawArrow(Graphics g, boolean isPrinting) {
    if ((source == null || target == null) && !usedForPreviews)
        return;
    if (!usedForPreviews && !isPrinting)
        updateBounds();
    else
        arrowLine = getArrowLine(target, source);
    // Draw the line
    Graphics2D g2 = (Graphics2D) g;
    // Get the stroke
    float border = (float) (lineWidth / 2.0);
    if (!isPrinting && border < 1.0f)
        border = 1.0f;
    g2.setPaint(lineColor);
    g2.setStroke(new BasicStroke(border, BasicStroke.JOIN_ROUND, BasicStroke.JOIN_ROUND, 10.0f));
    Line2D relativeLine = arrowLine != null ? getRelativeLine(arrowLine, 0.0, 0.0, 1.0, border) : null;
    if (relativeLine != null) {
        // Handle opacity
        if (lineColor instanceof Color) {
            int alpha = ((Color) lineColor).getAlpha();
            float opacity = (float) alpha / (float) 255;
            final Composite originalComposite = g2.getComposite();
            g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, opacity));
            g2.draw(relativeLine);
            g2.setComposite(originalComposite);
        } else {
            g2.draw(relativeLine);
        }
    }
    g2.setStroke(new BasicStroke(border));
    // Add the head
    if (sourceType != ArrowType.NONE) {
        if (sourceColor == null)
            sourceColor = lineColor;
        GraphicsUtilities.drawArrow(g, relativeLine, ArrowEnd.SOURCE, sourceColor, sourceSize * 10.0 * getZoom(), sourceType);
    }
    if (targetType != ArrowType.NONE) {
        if (targetColor == null)
            targetColor = lineColor;
        GraphicsUtilities.drawArrow(g, relativeLine, ArrowEnd.TARGET, targetColor, targetSize * 10.0 * getZoom(), targetType);
    }
}

Example 47 with Composite

use of java.awt.Composite in project cytoscape-impl by cytoscape.

the class AbstractChartLayer method draw.

@Override
public void draw(final Graphics2D g, final Shape shape, final CyNetworkView networkView, final View<? extends CyIdentifiable> view) {
    // Give JFreeChart a larger area to draw into, so the proportions of the chart elements looks better
    final double scale = 2.0;
    Rectangle2D newBounds = new Rectangle2D.Double(bounds.getX() * scale, bounds.getY() * scale, bounds.getWidth() * scale, bounds.getHeight() * scale);
    // Of course, we also have to ask Graphics2D to apply the inverse transformation
    final double invScale = 1.0 / scale;
    final AffineTransform at = new AffineTransform();
    at.scale(invScale, invScale);
    g.transform(at);
    // Check to see if we have a current alpha composite
    Composite comp = g.getComposite();
    if (comp instanceof AlphaComposite) {
        float alpha = ((AlphaComposite) comp).getAlpha();
        JFreeChart fc = getChart();
        Plot plot = fc.getPlot();
        plot.setForegroundAlpha(alpha);
        fc.draw(g, newBounds);
    } else {
        getChart().draw(g, newBounds);
    }
    // Make sure Graphics2D is "back to normal" before returning
    try {
        at.invert();
    } catch (NoninvertibleTransformException e) {
        e.printStackTrace();
    }
    g.transform(at);
}

Example 48 with Composite

use of java.awt.Composite in project cytoscape-impl by cytoscape.

the class OldGraphGraphics method clear.

/**
 * Clears image area with background paint specified and sets an appropriate
 * transformation of coordinate systems. See the class description for a
 * definition of the two coordinate systems: the node coordinate system and
 * the image coordinate system.
 * <p>
 * The background paint is not blended with colors that may already be on
 * the underlying image; if a translucent color is used in the background
 * paint, the underlying image itself becomes translucent.
 * <p>
 * It is mandatory to call this method before making the first rendering
 * call.
 *
 * @param bgPaint
 *            paint to use when clearing the image before painting a new
 *            frame; translucency is honored, provided that the underlying
 *            image supports it.
 * @param xCenter
 *            the X component of the translation transform for the frame
 *            about to be rendered; a node whose center is at the X
 *            coordinate xCenter will be rendered exactly in the middle of
 *            the image going across; increasing X values (in the node
 *            coordinate system) result in movement towards the right on the
 *            image.
 * @param yCenter
 *            the Y component of the translation transform for the frame
 *            about to be rendered; a node whose center is at the Y
 *            coordinate yCenter will be rendered exactly in the middle of
 *            the image going top to bottom; increasing Y values (in the
 *            node coordinate system) result in movement towards the bottom
 *            on the image.
 * @param scaleFactor
 *            the scaling that is to take place when rendering; a distance
 *            of 1 in node coordinates translates to a distance of
 *            scaleFactor in the image coordinate system (usually one unit
 *            in the image coordinate system equates to one pixel width).
 * @exception IllegalArgumentException
 *                if scaleFactor is not positive.
 */
public final void clear(final Paint bgPaint, final double xCenter, final double yCenter, final double scaleFactor) {
    if (m_debug) {
        if (!EventQueue.isDispatchThread()) {
            throw new IllegalStateException("calling thread is not AWT event dispatcher");
        }
        if (!(scaleFactor > 0.0d)) {
            throw new IllegalArgumentException("scaleFactor is not positive");
        }
    }
    if (m_gMinimal != null) {
        m_gMinimal.dispose();
        m_gMinimal = null;
    }
    if (m_g2d != null) {
        m_g2d.dispose();
    }
    m_g2d = (Graphics2D) image.getGraphics();
    final Composite origComposite = m_g2d.getComposite();
    m_g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC));
    m_g2d.setPaint(bgPaint);
    m_g2d.fillRect(0, 0, image.getWidth(null), image.getHeight(null));
    m_g2d.setComposite(origComposite);
    m_g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    m_g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
    m_g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
    m_g2d.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
    m_g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
    setStroke(0.0f, 0.0f, BasicStroke.CAP_ROUND, true);
    m_currXform.setToTranslation(0.5d * image.getWidth(null), 0.5d * image.getHeight(null));
    m_currXform.scale(scaleFactor, scaleFactor);
    m_currXform.translate(-xCenter, -yCenter);
    m_g2d.transform(m_currXform);
    m_currNativeXform.setTransform(m_g2d.getTransform());
    m_cleared = true;
}

Example 49 with Composite

use of java.awt.Composite in project cytoscape-impl by cytoscape.

the class TextAnnotationImpl method drawAnnotation.

@Override
public void drawAnnotation(Graphics g, double x, double y, double scaleFactor) {
    if (text == null)
        return;
    super.drawAnnotation(g, x, y, scaleFactor);
    Graphics2D g2 = (Graphics2D) g;
    // System.out.println("drawAnnotation: setting text color to: "+textColor);
    g2.setPaint(textColor);
    // Font tFont = font.deriveFont(((float)(scaleFactor/getZoom()))*font.getSize2D());
    Font tFont = font.deriveFont(((float) (scaleFactor / getZoom())) * font.getSize2D());
    FontMetrics fontMetrics = g.getFontMetrics(tFont);
    int width = (int) ((double) getWidth() * scaleFactor / getZoom());
    int halfWidth = (width - fontMetrics.stringWidth(text)) / 2;
    // Note, this is + because we start at the baseline
    int height = (int) ((double) getHeight() * scaleFactor / getZoom());
    int halfHeight = (height + fontMetrics.getHeight() / 2) / 2;
    int xLoc = (int) (x * scaleFactor + halfWidth);
    int yLoc = (int) (y * scaleFactor + halfHeight);
    g2.setFont(tFont);
    // Handle opacity
    int alpha = textColor.getAlpha();
    float opacity = (float) alpha / (float) 255;
    final Composite originalComposite = g2.getComposite();
    g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, opacity));
    g2.drawString(text, xLoc, yLoc);
    g2.setComposite(originalComposite);
}

Example 50 with Composite

use of java.awt.Composite in project cytoscape-impl by cytoscape.

the class BoundedTextAnnotationImpl method drawAnnotation.

@Override
public void drawAnnotation(Graphics g, double x, double y, double scaleFactor) {
    super.drawAnnotation(g, x, y, scaleFactor);
    if (text == null || textColor == null || font == null)
        return;
    // For now, we put the text in the middle of the shape.  At some point, we may
    // want to add other options
    Graphics2D g2 = (Graphics2D) g;
    g2.setColor(textColor);
    int width = (int) ((double) getWidth() * scaleFactor / getZoom());
    int height = (int) ((double) getHeight() * scaleFactor / getZoom());
    Font tFont = font.deriveFont(((float) (scaleFactor / getZoom())) * font.getSize2D());
    FontMetrics fontMetrics = g.getFontMetrics(tFont);
    int halfWidth = (width - (int) (fontMetrics.stringWidth(text))) / 2;
    // Note, this is + because we start at the baseline
    // int halfHeight = ((int)(getHeight()*scaleFactor)+fontMetrics.getHeight()/2)/2;
    int halfHeight = (height + fontMetrics.getHeight() / 2) / 2;
    int xLoc = (int) (x * scaleFactor) + halfWidth;
    int yLoc = (int) (y * scaleFactor) + halfHeight;
    g2.setFont(tFont);
    // Handle opacity
    int alpha = textColor.getAlpha();
    float opacity = (float) alpha / (float) 255;
    final Composite originalComposite = g2.getComposite();
    g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, opacity));
    g2.drawString(text, xLoc, yLoc);
    g2.setComposite(originalComposite);
}