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Färbung von Bildern implementiert

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ngb
2022-06-13 21:32:43 +02:00
parent 0f8555c378
commit b306449ff2
1 changed files with 50 additions and 3 deletions
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53
src/schule/ngb/zm/shapes/Picture.java
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@@ -12,9 +12,6 @@ import java.awt.image.BufferedImage;
public class Picture extends Shape {
// https://stackoverflow.com/questions/14225518/tinting-image-in-java-improvement
protected Color tint;
private BufferedImage image;
private double width;
@@ -107,6 +104,56 @@ public class Picture extends Shape {
}
*/
public void flip( Options.Direction dir ) {
int w = image.getWidth();
int h = image.getHeight();
BufferedImage new_image = ImageLoader.createImage(w, h, image.getColorModel().getTransparency());
Graphics2D g = new_image.createGraphics();
if( dir.contains(LEFT) || dir.contains(RIGHT) ) {
g.drawImage(image, 0, 0, w, h, w, 0, 0, h, null);
} else {
g.drawImage(image, 0, 0, w, h, 0, h, w, 0, null);
}
g.dispose();
image = new_image;
}
public void tint( Color tintColor ) {
BufferedImage mask = generateMask(tintColor, 0.5);
int imgWidth = image.getWidth();
int imgHeight = image.getHeight();
BufferedImage new_image = ImageLoader.createImage(imgWidth, imgHeight, image.getColorModel().getTransparency());
Graphics2D g2 = new_image.createGraphics();
g2.drawImage(image, 0, 0, null);
g2.drawImage(mask, 0, 0, null);
g2.dispose();
image = new_image;
}
private BufferedImage generateMask( Color color, double alpha ) {
int imgWidth = image.getWidth();
int imgHeight = image.getHeight();
BufferedImage imgMask = ImageLoader.createImage(imgWidth, imgHeight, Transparency.TRANSLUCENT);
imgMask.coerceData(true);
Graphics2D g2 = imgMask.createGraphics();
g2.drawImage(image, 0, 0, null);
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_IN, (float)alpha));
g2.setColor(color.getJavaColor());
g2.fillRect(0, 0, imgWidth, imgHeight);
g2.dispose();
return imgMask;
}
@Override
public void draw( Graphics2D graphics, AffineTransform transform ) {
if( !visible ) {