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gnujpdf drawImage reverse fix

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gnujpdf transparent images
This commit is contained in:
Jindra Petřík
2021-03-16 12:45:57 +01:00
parent 9571de6858
commit 7c9a3b059a
3 changed files with 117 additions and 3 deletions
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19
libsrc/gnujpdf/src/gnu/jpdf/PDFImage.java
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@@ -59,6 +59,8 @@ public class PDFImage extends PDFStream implements ImageObserver, Serializable {
private Image img;
private String name;
private String mask;
/**
* Creates a new <code>PDFImage</code> instance.
*
@@ -72,11 +74,16 @@ public class PDFImage extends PDFStream implements ImageObserver, Serializable {
*
* @param img an <code>Image</code> value
*/
public PDFImage(Image img) {
public PDFImage(Image img, String mask) {
this();
this.mask = mask;
setImage(img, 0, 0, img.getWidth(this), img.getHeight(this), this);
}
public PDFImage(Image img) {
this(img, null);
}
/**
* Creates a new <code>PDFImage</code> instance.
*
@@ -87,13 +94,18 @@ public class PDFImage extends PDFStream implements ImageObserver, Serializable {
* @param h an <code>int</code> value
* @param obs an <code>ImageObserver</code> value
*/
public PDFImage(Image img, int x, int y, int w, int h, ImageObserver obs) {
public PDFImage(Image img, int x, int y, int w, int h, ImageObserver obs, String mask) {
this();
objwidth = w;
objheight = h;
this.mask = mask;
setImage(img, x, y, img.getWidth(this), img.getHeight(this), obs);
}
public PDFImage(Image img, int x, int y, int w, int h, ImageObserver obs) {
this(img, x, y, w, h, obs, null);
}
/**
* Get the value of width.
*
@@ -297,6 +309,9 @@ public class PDFImage extends PDFStream implements ImageObserver, Serializable {
os.write("\n/Height ".getBytes());
os.write(Integer.toString(height).getBytes());
os.write("\n/BitsPerComponent 8\n/ColorSpace /DeviceRGB\n".getBytes());
if (mask != null) {
os.write(("\n/SMask " + mask + "\n").getBytes());
}
// write the pixels to the stream
//System.err.println("Processing image "+width+"x"+height+" pixels");