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GtkImage.java (setDimensions, [...]): Check that io is not null before calling io.imageUpdate.

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2003-12-01  Thomas Fitzsimmons  <fitzsim@redhat.com>

	* gnu/java/awt/peer/gtk/GtkImage.java (setDimensions,
	setProperties): Check that io is not null before calling
	io.imageUpdate.
	* java/awt/image/ImageConsumer.java (setPixels, imageComplete):
	Update javadocs.
	* java/awt/image/PixelGrabber.java: Fix implementation and
	update javadocs.

From-SVN: r74103
This commit is contained in:
Thomas Fitzsimmons 2003-12-01 15:28:22 +00:00 • committed by Thomas Fitzsimmons
parent a1ff4c6478
commit ec22cdf140
4 changed files with 631 additions and 314 deletions
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46
libjava/java/awt/image/ImageConsumer.java
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@ -1,5 +1,5 @@
/* ImageConsumer.java -- Java interface for image consumption
Copyright (C) 1999 Free Software Foundation, Inc.
Copyright (C) 1999, 2003 Free Software Foundation, Inc.
This file is part of GNU Classpath.
@ -160,17 +160,45 @@ public interface ImageConsumer
void setHints(int flags);
/**
* This function delivers a rectangle of pixels where any
* pixel(m,n) is stored in the array as a <code>byte</code> at
* index (n * scansize + m + offset).
* Deliver a subset of an ImageProducer's pixels to this ImageConsumer.
*
* Each element of the pixels array represents one pixel. The
* pixel data is formatted according to the color model model.
* The x and y parameters are the coordinates of the block of
* pixels being delivered to this ImageConsumer. They are
* specified relative to the top left corner of the image being
* produced. Likewise, w and h are the pixel block's dimensions.
*
* @param x x coordinate of pixel block
* @param y y coordinate of pixel block
* @param w width of pixel block
* @param h height of pixel block
* @param model color model used to interpret pixel data
* @param pixels pixel block data
* @param offset offset into pixels array
* @param scansize width of one row in the pixel block
*/
void setPixels(int x, int y, int w, int h,
ColorModel model, byte[] pixels, int offset, int scansize);
/**
* This function delivers a rectangle of pixels where any
* pixel(m,n) is stored in the array as an <code>int</code> at
* index (n * scansize + m + offset).
* Deliver a subset of an ImageProducer's pixels to this ImageConsumer.
*
* Each element of the pixels array represents one pixel. The
* pixel data is formatted according to the color model model.
* The x and y parameters are the coordinates of the rectangular
* region of pixels being delivered to this ImageConsumer,
* specified relative to the top left corner of the image being
* produced. Likewise, w and h are the pixel region's dimensions.
*
* @param x x coordinate of pixel block
* @param y y coordinate of pixel block
* @param w width of pixel block
* @param h height of pixel block
* @param model color model used to interpret pixel data
* @param pixels pixel block data
* @param offset offset into pixels array
* @param scansize width of one row in the pixel block
*/
void setPixels(int x, int y, int w, int h,
ColorModel model, int[] pixels, int offset, int scansize);
@ -180,7 +208,9 @@ public interface ImageConsumer
* single frame or the entire image is complete. The method is
* also used to indicate an error in loading or producing the
* image.
*
* @param status the status of image production, represented by a
* bitwise OR of ImageConsumer flags
*/
void imageComplete(int status);
}