IT 관련 포스팅

import java.awt.Color;

import java.awt.Font;

import java.awt.FontMetrics;

import java.awt.Graphics2D;

import java.awt.Image;

import java.awt.RenderingHints;

import java.awt.font.FontRenderContext;

import java.awt.font.LineMetrics;

import java.awt.geom.Rectangle2D;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

import java.util.HashMap;

import javax.imageio.ImageIO;

import org.apache.log4j.Logger;

public class ImageUtil {

public final static Logger LOG = Logger.getLogger(ImageUtil.class);

public static final HashMap<RenderingHints.Key, Object> RenderingProperties = new HashMap<>();

static{

    RenderingProperties.put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

    RenderingProperties.put(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);

    RenderingProperties.put(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);

}

public static BufferedImage textToImage(int width,int height,String Text, Font f, float Size,String fileName,boolean isFile) throws IOException{

    //Derives font to new specified size, can be removed if not necessary.

  try{

double size = height/3;

if(width>height) size = height/3;

else size =width/3;

if(size<1) size =1;

if(f == null) f  = new Font("Arial", Font.PLAIN, (int) size);

    f = f.deriveFont((float)size);

    FontRenderContext frc = new FontRenderContext(null, true, true);

    //Calculate size of buffered image.

    //LineMetrics lm = f.getLineMetrics(Text, frc);

    LOG.debug("textToImage...2 "+frc.toString());

    char[] array = Text.toCharArray();

    Rectangle2D r2d = f.getStringBounds(array, 0, array.length, frc);

/*     Rectangle2D r2d = f.getStringBounds(Text, frc);*/

    LOG.debug("textToImage...3 ");

    if(r2d.getWidth() > width) {

    size=size/1.5;

    if(size <1) size = 1;

    f  = new Font("Arial", Font.PLAIN, (int) size);

    f = f.deriveFont((float)size);

    frc = new FontRenderContext(null, true, true);

   // lm = f.getLineMetrics(Text, frc);

    r2d = f.getStringBounds(Text, frc);

    }

    double realHeight = r2d.getHeight();

    double realWidth = r2d.getWidth();

  // BufferedImage img = new BufferedImage((int)Math.ceil(r2d.getWidth()), (int)Math.ceil(r2d.getHeight()), BufferedImage.TYPE_INT_RGB);

    BufferedImage img = new BufferedImage((int)Math.ceil(width), (int)Math.ceil(height), BufferedImage.TYPE_INT_RGB);

    Graphics2D g2d = img.createGraphics();

    g2d.setRenderingHints(RenderingProperties);

    Color backColor = new Color(45, 108, 147);

    g2d.setBackground(backColor);

    g2d.setColor(Color.WHITE);

    g2d.clearRect(0, 0, img.getWidth(), img.getHeight());

    g2d.setFont(f);

   // g2d.drawString(Text, 0, lm.getAscent());

    g2d.drawString(Text, (float) ((width/2)-(realWidth/2)), (float) ((height/2)+(realHeight/4)));

    g2d.dispose();

    if(isFile) ImageIO.write(img, "jpg", new File(fileName));

    return img;

  }catch(Exception e){

    LOG.error(e);

    throw e;

    }

}

public static BufferedImage textToImage1(int width,int height,String Text, Font f, float Size,String fileName,boolean isFile) throws IOException{

BufferedImage img = new BufferedImage((int)Math.ceil(width), (int)Math.ceil(height), BufferedImage.TYPE_INT_RGB);

Graphics2D g2d = img.createGraphics();

boolean sizeOk = false;

double size = height/3;

if(width>height) size = height/3;

else size =width/3;

int realWidth = 10;

int realHeight = 10;

while(!sizeOk){

if(f == null) f  = g2d.getFont();

    f = f.deriveFont((float)size);

    FontMetrics fm = g2d.getFontMetrics(f);

    realWidth = fm.stringWidth(Text);

    realHeight = fm.getHeight();

    size=size/1.5;

    if(realWidth<width || size<0) sizeOk = true;

}

    g2d.setRenderingHints(RenderingProperties);

    Color backColor = new Color(45, 108, 147);

    g2d.setBackground(backColor);

    g2d.setColor(Color.WHITE);

    g2d.clearRect(0, 0, img.getWidth(), img.getHeight());

    g2d.setFont(f);

   // g2d.drawString(Text, 0, lm.getAscent());

    g2d.drawString(Text, (float) ((width/2)-(realWidth/2)), (float) ((height/2)+(realHeight/4)));

    g2d.dispose();

    if(isFile) ImageIO.write(img, "jpg", new File(fileName));

    return img;

}

public static BufferedImage resizeImage(BufferedImage image, int width, int height) {

float w = new Float(width) ;

float h = new Float(height) ;

if ( w <= 0 && h <= 0 ) {

w = image.getWidth();

h = image.getHeight();

} else if ( w <= 0 ) {

w = image.getWidth() * ( h / image.getHeight() ); 

} else if ( h <= 0 ) {

h = image.getHeight() * ( w / image.getWidth() ); 

}

int wi = (int) w;

int he = (int) h;

BufferedImage resizedImage = new BufferedImage(wi,he,BufferedImage.TYPE_INT_RGB);

resizedImage.getGraphics().drawImage(

image.getScaledInstance(wi,he,Image.SCALE_AREA_AVERAGING),

0,0,wi,he,null

);

return resizedImage;

}

}