Package org.geoforge.awt.java2d

Source Code of org.geoforge.awt.java2d.MySurfaceAbs

/*
*
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
*   - Redistributions of source code must retain the above copyright
*     notice, this list of conditions and the following disclaimer.
*
*   - Redistributions in binary form must reproduce the above copyright
*     notice, this list of conditions and the following disclaimer in the
*     documentation and/or other materials provided with the distribution.
*
*   - Neither the name of Oracle nor the names of its
*     contributors may be used to endorse or promote products derived
*     from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

package org.geoforge.awt.java2d;

import java.awt.AlphaComposite;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Paint;
import java.awt.Panel;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.TexturePaint;
import java.awt.Toolkit;
import java.awt.font.FontRenderContext;
import java.awt.font.TextLayout;
import java.awt.image.BufferedImage;
import org.geoforge.java.awt.color.GfrColor;
import org.geoforge.java.awt.font.GfrUtilFont;
import org.geoforge.java.enumeration.GfrEnuSystemPropertiesKeys;
import static java.awt.RenderingHints.KEY_ANTIALIASING;
import static java.awt.RenderingHints.KEY_RENDERING;
import org.geoforge.awt.graphics2d.GfrUtilGraphics2D;


/**
*
* modified by bantchao
*/
abstract public class MySurfaceAbs extends Panel
{
    transient private Object _objAntiAlias_ = RenderingHints.VALUE_ANTIALIAS_ON;
    transient private Object _objRendering_ = RenderingHints.VALUE_RENDER_SPEED;
   
     transient private int biw, bih;
     transient private boolean toBeInitialized = true;
     transient private int imageType;
     transient private BufferedImage bimg;
     transient private boolean clearOnce;
     transient private Toolkit toolkit;
     transient private boolean clearSurface = true;
     transient private Paint texture;
     transient private AlphaComposite composite;
    
     // ...demos that extend Surface must implement this routine...
    abstract public void render(int w, int h, Graphics2D g2);
   
    transient private String _strWallPaper_ = null;
   
    protected MySurfaceAbs(String strWallPaper)
    {
       
        this._strWallPaper_ = strWallPaper;
        toolkit = getToolkit();
        TexturePaint textTexture = getTextTexture();
       
        this.setTexture(textTexture);
        this.setComposite(true);
        this.setAntiAlias(true);
        this.setRendering(true);
    }
    
    protected MySurfaceAbs()
    {
        this((String) null);
    }
   
    @Override
    public void paint(Graphics g) {

        super.paint(g);

        Dimension d = getSize();

        if (biw != d.width || bih != d.height) {
            toBeInitialized = true;
            biw = d.width;
            bih = d.height;
        }

        if (imageType == 1) {
            bimg = null;
        } else if (bimg == null || toBeInitialized) {
            bimg = createBufferedImage((Graphics2D) g,
                    d.width, d.height, imageType - 2);
            clearOnce = true;
        }

        /*if (toBeInitialized) {
            if (animating != null) {
                animating.reset(d.width, d.height);
            }
            toBeInitialized = false;
            startClock();
        }

        if (animating != null && animating.running()) {
            animating.step(d.width, d.height);
        }*/
       
        Graphics2D g2 = createGraphics2D(d.width, d.height, bimg, g);
        render(d.width, d.height, g2);
        g2.dispose();

        if (bimg != null) {
            g.drawImage(bimg, 0, 0, null);
            toolkit.sync();
        }

        /*if (perfMonitor) {
            LogPerformance();*/
        }
   
   
    public BufferedImage createBufferedImage(Graphics2D g2,
            int w,
            int h,
            int imgType)
    {
        BufferedImage bi = null;
        /*if (imgType == 0) {
            bi = g2.getDeviceConfiguration().
                    createCompatibleImage(w, h);
        } else if (imgType > 0 && imgType < 14) {
            bi = new BufferedImage(w, h, imgType);
        } else if (imgType == 14) {
            bi = createBinaryImage(w, h, 2);
        } else if (imgType == 15) {
            bi = createBinaryImage(w, h, 4);
        } else if (imgType == 16) {
            bi = createSGISurface(w, h, 32);
        } else if (imgType == 17) {
            bi = createSGISurface(w, h, 16);
        }*/
        return bi;
    }
   
    public Graphics2D createGraphics2D(int width,
            int height,
            BufferedImage bi,
            Graphics g) {

        Graphics2D g2d = null;

        if (bi != null) {
            g2d = bi.createGraphics();
        } else {
            g2d = (Graphics2D) g;
        }

        g2d.setBackground(getBackground());
       
        GfrUtilGraphics2D.s_setRenderingAntiAlias(g2d, _objAntiAlias_);

        g2d.setRenderingHint(KEY_RENDERING, _objRendering_);

        if (clearSurface || clearOnce) {
            g2d.clearRect(0, 0, width, height);
            clearOnce = false;
        }

        if (texture != null) {
            // set composite to opaque for texture fills
            g2d.setComposite(AlphaComposite.SrcOver);
            g2d.setPaint(texture);
            g2d.fillRect(0, 0, width, height);
        }

        if (composite != null) {
            g2d.setComposite(composite);
        }

        return g2d;
    }
   
    public void setAntiAlias(boolean aa) {
        _objAntiAlias_ = aa ? RenderingHints.VALUE_ANTIALIAS_ON : RenderingHints.VALUE_ANTIALIAS_OFF;
    }

    public void setRendering(boolean rd) {
        _objRendering_ = rd ? RenderingHints.VALUE_RENDER_QUALITY : RenderingHints.VALUE_RENDER_SPEED;
    }

    public void setTexture(Object obj) {
        if (obj instanceof GradientPaint) {
            texture = new GradientPaint(0, 0, GfrColor.WHITE_2,
                    getSize().width * 2, 0, GfrColor.green);
        } else {
            texture = (Paint) obj;
        }
    }

    public void setComposite(boolean cp) {
        composite = cp
                ? AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f)
                : null;
    }
   
    public TexturePaint getTextTexture()
    {  
        String strText = this._strWallPaper_;
       
        if (strText == null)
            strText = System.getProperty(GfrEnuSystemPropertiesKeys.NAME_LONG_APPLI.getLabel());
       
        TextLayout tlt = new TextLayout(strText,
                GfrUtilFont.s_get(Font.BOLD, 10),
                new FontRenderContext(null,
                false, false));
       
        int sw = (int) tlt.getBounds().getWidth();
        int sh = (int) (tlt.getAscent() + tlt.getDescent());
        BufferedImage bi = new BufferedImage(sw, sh, BufferedImage.TYPE_INT_RGB);
        Graphics2D tG2 = bi.createGraphics();
        tG2.setBackground(GfrColor.WHITE_2);
        tG2.clearRect(0, 0, sw, sh);
        tG2.setColor(GfrColor.GRAY_8);
        tlt.draw(tG2, 0, tlt.getAscent());
        Rectangle r = new Rectangle(0, 0, sw, sh);
        return new TexturePaint(bi, r);
    }
}
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