/*

 * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package sun.awt.X11;

import java.awt.*;

class XWarningWindow extends XWindow {

    final static int defaultHeight = 27;

    Window ownerWindow;

    XWarningWindow(Window ownerWindow, long parentWindow) {

        super(ownerWindow, parentWindow);

        this.ownerWindow = ownerWindow;

        xSetVisible(true);

        toFront();

    }

    protected String getWMName() {

        return "Warning window";

    }

    public Graphics getGraphics() {

        if ((surfaceData == null) || (ownerWindow == null)) return null;

        return getGraphics(surfaceData,

                                 getColor(),

                                 getBackground(),

                                 getFont());

    }

    void paint(Graphics g, int x, int y, int width, int height) {

        String warningString = getWarningString();

        Rectangle bounds = getBounds();

        bounds.x = 0;

        bounds.y = 0;

        Rectangle updateRect = new Rectangle(x, y, width, height);

        if (updateRect.intersects(bounds)) {

            Rectangle updateArea = updateRect.intersection(bounds);

            g.setClip(updateArea);

            g.setColor(getBackground());

            g.fillRect(updateArea.x, updateArea.y, updateArea.width, updateArea.height);

            g.setColor(getColor());

            g.setFont(getFont());

            FontMetrics fm = g.getFontMetrics();

            int warningWidth = fm.stringWidth(warningString);

            int w_x = (bounds.width - warningWidth)/2;

            int w_y = (bounds.height + fm.getMaxAscent() - fm.getMaxDescent())/2;

            g.drawString(warningString, w_x, w_y);

            g.drawLine(bounds.x, bounds.y+bounds.height-1, bounds.x+bounds.width-1, bounds.y+bounds.height-1);

        }

    }

    String getWarningString() {

        return ownerWindow.getWarningString();

    }

    int getHeight() {

        return defaultHeight; // should implement depending on Font

    }

    Color getBackground() {

        return SystemColor.window;

    }

    Color getColor() {

        return Color.black;

    }

    Font getFont () {

        return ownerWindow.getFont();

    }

    public void repaint() {

        Rectangle bounds = getBounds();

        Graphics g = getGraphics();

        try {

            paint(g, 0, 0, bounds.width, bounds.height);

        } finally {

            g.dispose();

        }

    }

    public void handleExposeEvent(XEvent xev) {

        super.handleExposeEvent(xev);

        XExposeEvent xe = xev.get_xexpose();

        final int x = xe.get_x();

        final int y = xe.get_y();

        final int width = xe.get_width();

        final int height = xe.get_height();

        EventQueue.invokeLater(new Runnable() {

            public void run() {

                Graphics g = getGraphics();

                try {

                    paint(g, x, y, width, height);

                } finally {

                    g.dispose();

                }

            }

        });

    }

    protected boolean isEventDisabled(XEvent e) {

        return true;

    }

}