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

Example 1 with Point

use of java.awt.Point in project jmonkeyengine by jMonkeyEngine.

the class MapModel2D method toPosition.

/**
     * Converts a pixel position into a mercator position
     * @param p {@link Point} object that you wish to convert into
     *        longitude / latiude
     * @return the converted {@code Position} object
     * @since 1.0
     */
public Position toPosition(Point p) {
    double lat, lon;
    Position pos = null;
    try {
        Point pixelCentre = toPixel(new Position(0, 0));
        // Get the distance between position and the centre
        double xDistance = distance(xCentre, p.getX());
        double yDistance = distance(pixelCentre.getY(), p.getY());
        double lonDistanceInDegrees = (xDistance * minutesPerPixel) / 60;
        double mp = (yDistance * minutesPerPixel);
        // Otherwise use binary search
        if (getMinutesPerPixel() < 0.05) {
            lat = findLat(mp, getCentre().getLatitude());
            if (lat == -1000) {
                System.out.println("lat: " + lat);
            }
        } else {
            lat = findLat(mp, 0.0, 85.0);
        }
        lon = (p.getX() < xCentre ? centre.getLongitude() - lonDistanceInDegrees : centre.getLongitude() + lonDistanceInDegrees);
        if (p.getY() > pixelCentre.getY()) {
            lat = -1 * lat;
        }
        if (lat == -1000 || lon == -1000) {
            return pos;
        }
        pos = new Position(lat, lon);
    } catch (InvalidPositionException ipe) {
        ipe.printStackTrace();
    }
    return pos;
}

Example 2 with Point

use of java.awt.Point in project jmonkeyengine by jMonkeyEngine.

the class MapModel2D method toPixel.

/**
     * Converts a latitude/longitude position into a pixel co-ordinate
     * @param position the position to convert
     * @return {@code Point} a pixel co-ordinate
     * @since 1.0
     */
public Point toPixel(Position position) {
    // Get the distance between position and the centre for calculating
    // the position's longitude translation
    double distance = NavCalculator.computeLongDiff(centre.getLongitude(), position.getLongitude());
    // Use the distance from the centre to calculate the pixel x co-ordinate
    double distanceInPixels = (distance / minutesPerPixel);
    // Use the difference in meridional parts to calculate the pixel y co-ordinate
    double dmp = NavCalculator.computeDMPClarkeSpheroid(centre.getLatitude(), position.getLatitude());
    int x = 0;
    int y = 0;
    if (centre.getLatitude() == position.getLatitude()) {
        y = yCentre;
    }
    if (centre.getLongitude() == position.getLongitude()) {
        x = xCentre;
    }
    // Distinguish between northern and southern hemisphere for latitude calculations
    if (centre.getLatitude() > 0 && position.getLatitude() > centre.getLatitude()) {
        // Centre is north. Position is north of centre
        y = yCentre + (int) ((dmp) / minutesPerPixel);
    } else if (centre.getLatitude() > 0 && position.getLatitude() < centre.getLatitude()) {
        // Centre is north. Position is south of centre
        y = yCentre - (int) ((dmp) / minutesPerPixel);
    } else if (centre.getLatitude() < 0 && position.getLatitude() > centre.getLatitude()) {
        // Centre is south. Position is north of centre
        y = yCentre + (int) ((dmp) / minutesPerPixel);
    } else if (centre.getLatitude() < 0 && position.getLatitude() < centre.getLatitude()) {
        // Centre is south. Position is south of centre
        y = yCentre - (int) ((dmp) / minutesPerPixel);
    } else if (centre.getLatitude() == 0 && position.getLatitude() > centre.getLatitude()) {
        // Centre is at the equator. Position is north of the equator
        y = yCentre + (int) ((dmp) / minutesPerPixel);
    } else if (centre.getLatitude() == 0 && position.getLatitude() < centre.getLatitude()) {
        // Centre is at the equator. Position is south of the equator
        y = yCentre - (int) ((dmp) / minutesPerPixel);
    }
    // Distinguish between western and eastern hemisphere for longitude calculations
    if (centre.getLongitude() < 0 && position.getLongitude() < centre.getLongitude()) {
        // Centre is west. Position is west of centre
        x = xCentre - (int) distanceInPixels;
    } else if (centre.getLongitude() < 0 && position.getLongitude() > centre.getLongitude()) {
        // Centre is west. Position is south of centre
        x = xCentre + (int) distanceInPixels;
    } else if (centre.getLongitude() > 0 && position.getLongitude() < centre.getLongitude()) {
        // Centre is east. Position is west of centre
        x = xCentre - (int) distanceInPixels;
    } else if (centre.getLongitude() > 0 && position.getLongitude() > centre.getLongitude()) {
        // Centre is east. Position is east of centre
        x = xCentre + (int) distanceInPixels;
    } else if (centre.getLongitude() == 0 && position.getLongitude() > centre.getLongitude()) {
        // Centre is at the equator. Position is east of centre
        x = xCentre + (int) distanceInPixels;
    } else if (centre.getLongitude() == 0 && position.getLongitude() < centre.getLongitude()) {
        // Centre is at the equator. Position is west of centre
        x = xCentre - (int) distanceInPixels;
    }
    // Distinguish between northern and souterhn hemisphere for longitude calculations
    return new Point(x, y);
}

Example 3 with Point

use of java.awt.Point in project jna by java-native-access.

the class ShapedWindowDemo method main.

public static void main(String[] args) {
    try {
        System.setProperty("sun.java2d.noddraw", "true");
        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    } catch (Exception e) {
    }
    final JFrame frame = new JFrame("Shaped Window Demo");
    MouseInputAdapter handler = new MouseInputAdapter() {

        private Point offset;

        private void showPopup(MouseEvent e) {
            final JPopupMenu m = new JPopupMenu();
            m.add(new AbstractAction("Hide") {

                public void actionPerformed(ActionEvent e) {
                    frame.setState(JFrame.ICONIFIED);
                }

                private static final long serialVersionUID = 1L;
            });
            m.add(new AbstractAction("Close") {

                public void actionPerformed(ActionEvent e) {
                    System.exit(0);
                }

                private static final long serialVersionUID = 1L;
            });
            m.pack();
            m.show(e.getComponent(), e.getX(), e.getY());
        }

        public void mousePressed(MouseEvent e) {
            offset = e.getPoint();
            if (e.isPopupTrigger()) {
                showPopup(e);
            }
        }

        public void mouseDragged(MouseEvent e) {
            if (!SwingUtilities.isLeftMouseButton(e))
                return;
            Point where = e.getPoint();
            where.translate(-offset.x, -offset.y);
            Point loc = frame.getLocationOnScreen();
            loc.translate(where.x, where.y);
            frame.setLocation(loc.x, loc.y);
        }

        public void mouseReleased(MouseEvent e) {
            if (e.isPopupTrigger()) {
                showPopup(e);
            }
        }
    };
    frame.addMouseListener(handler);
    frame.addMouseMotionListener(handler);
    ClockFace face = new ClockFace(new Dimension(150, 150));
    frame.getContentPane().setCursor(Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR));
    frame.getContentPane().add(face);
    frame.setUndecorated(true);
    try {
        Shape mask = new Area(new Ellipse2D.Float(0, 0, 150, 150));
        WindowUtils.setWindowMask(frame, mask);
        if (WindowUtils.isWindowAlphaSupported()) {
            WindowUtils.setWindowAlpha(frame, .7f);
        }
        frame.setIconImage(face.getIconImage());
        frame.setResizable(false);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setLocation(100, 100);
        frame.setVisible(true);
    } catch (UnsatisfiedLinkError e) {
        e.printStackTrace();
        String msg = e.getMessage() + "\nError loading the JNA library";
        JTextArea area = new JTextArea(msg);
        area.setOpaque(false);
        area.setFont(UIManager.getFont("Label.font"));
        area.setEditable(false);
        area.setColumns(80);
        area.setRows(8);
        area.setWrapStyleWord(true);
        area.setLineWrap(true);
        JOptionPane.showMessageDialog(frame, new JScrollPane(area), "Library Load Error: " + System.getProperty("os.name") + "/" + System.getProperty("os.arch"), JOptionPane.ERROR_MESSAGE);
        System.exit(1);
    }
}

Example 4 with Point

use of java.awt.Point in project jna by java-native-access.

the class AlphaMaskDemo method updateX11.

private void updateX11(boolean a, boolean i) {
    X11 x11 = X11.INSTANCE;
    X11.Window win = X11.Window.None;
    Display dpy = x11.XOpenDisplay(null);
    try {
        if (!alphaWindow.isDisplayable()) {
            alphaWindow.pack();
            if (System.getProperty("java.version").matches("^1\\.4\\..*"))
                alphaWindow.setVisible(true);
            win = new X11.Window((int) Native.getWindowID(alphaWindow));
            Window parent = alphaWindow.getOwner();
            Point where = parent.getLocationOnScreen();
            where.translate(parent.getWidth(), 0);
            alphaWindow.removeAll();
            alphaWindow.setLocation(where);
            alphaWindow.setBackground(new Color(0, 0, 0, 0));
        } else {
            win = new X11.Window((int) Native.getWindowID(alphaWindow));
        }
        if (i) {
            int w = image.getWidth(null);
            int h = image.getHeight(null);
            alphaWindow.setSize(w, h);
            if (buffer == null || buffer.size() != w * h * 4) {
                buffer = new com.sun.jna.Memory(w * h * 4);
                pixels = new int[w * h];
            }
            BufferedImage buf = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB_PRE);
            Graphics g = buf.getGraphics();
            g.drawImage(image, 0, 0, w, h, null);
            long start = System.currentTimeMillis();
            long blitTime, putImageTime, write;
            GC gc = x11.XCreateGC(dpy, win, new NativeLong(0), null);
            long gcTime = System.currentTimeMillis();
            try {
                Raster raster = buf.getData();
                int[] pixel = new int[4];
                for (int y = 0; y < h; y++) {
                    for (int x = 0; x < w; x++) {
                        raster.getPixel(x, y, pixel);
                        int alpha = (pixel[3] & 0xFF) << 24;
                        int red = (pixel[2] & 0xFF);
                        int green = (pixel[1] & 0xFF) << 8;
                        int blue = (pixel[0] & 0xFF) << 16;
                        pixels[y * w + x] = alpha | red | green | blue;
                    }
                }
                blitTime = System.currentTimeMillis();
                X11.XWindowAttributes xwa = new X11.XWindowAttributes();
                x11.XGetWindowAttributes(dpy, win, xwa);
                X11.XImage image = x11.XCreateImage(dpy, xwa.visual, 32, X11.ZPixmap, 0, buffer, w, h, 32, w * 4);
                buffer.write(0, pixels, 0, pixels.length);
                write = System.currentTimeMillis();
                x11.XPutImage(dpy, win, gc, image, 0, 0, 0, 0, w, h);
                x11.XFree(image.getPointer());
                putImageTime = System.currentTimeMillis();
            } finally {
                if (gc != null)
                    x11.XFreeGC(dpy, gc);
            }
            long end = System.currentTimeMillis();
        //System.out.println("gc: " + (gcTime-start) + "ms");
        //System.out.println("blit: " + (blitTime-gcTime) + "ms");
        //System.out.println("write: " + (write-blitTime) + "ms");
        //System.out.println("put image: " + (putImageTime-write) + "ms");
        //System.out.println("total: " + (end-start) + "ms");
        }
    } finally {
        if (dpy != null)
            x11.XCloseDisplay(dpy);
    }
    if (a)
        WindowUtils.setWindowAlpha(alphaWindow, alpha);
    if (!alphaWindow.isVisible()) {
        alphaWindow.setVisible(true);
        // hack for initial refresh (X11)
        update(true, true);
    }
}

Example 5 with Point

use of java.awt.Point in project jna by java-native-access.

the class AlphaMaskDemo method centerOnScreen.

/** Center the given {@link Window} on the default screen. */
private static void centerOnScreen(Window window) {
    Point center = GraphicsEnvironment.getLocalGraphicsEnvironment().getCenterPoint();
    Rectangle max = GraphicsEnvironment.getLocalGraphicsEnvironment().getMaximumWindowBounds();
    int x = Math.max(center.x - Math.round(window.getWidth() / 2f), max.x);
    int y = Math.max(center.y - Math.round(window.getHeight() / 2f), max.y);
    window.setLocation(new Point(x, y));
}