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+/* QtImageConsumer.java --
+ Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.java.awt.peer.qt;
+
+import java.awt.image.ColorModel;
+import java.awt.image.ImageConsumer;
+import java.awt.image.ImageProducer;
+import java.util.Hashtable;
+
+/**
+ * Helper class to QtImage. Sits and gathers pixels for a QtImage and then
+ * calls QtImage.setImage().
+ *
+ * @author Sven de Marothy
+ */
+public class QtImageConsumer implements ImageConsumer
+{
+ private QtImage target;
+ private int width, height;
+ private Hashtable properties;
+ private int[] pixelCache = null;
+ private ImageProducer source;
+
+ public QtImageConsumer(QtImage target, ImageProducer source)
+ {
+ this.target = target;
+ this.source = source;
+ }
+
+ public synchronized void imageComplete (int status)
+ {
+ source.removeConsumer(this);
+ target.setImage(width, height, pixelCache, properties);
+ }
+
+ public synchronized void setColorModel (ColorModel model)
+ {
+ // This method is to inform on what the most used color model
+ // in the image is, for optimization reasons. We ignore this
+ // information.
+ }
+
+ public synchronized void setDimensions (int width, int height)
+ {
+ pixelCache = new int[width*height];
+
+ this.width = width;
+ this.height = height;
+ }
+
+ public synchronized void setHints (int flags)
+ {
+ // This method informs us in which order the pixels are
+ // delivered, for progressive-loading support, etc.
+ // Since we wait until it's all loaded, we can ignore the hints.
+ }
+
+ public synchronized void setPixels (int x, int y, int width, int height,
+ ColorModel cm, byte[] pixels,
+ int offset, int scansize)
+ {
+ setPixels (x, y, width, height, cm, convertPixels (pixels), offset,
+ scansize);
+ }
+
+ public synchronized void setPixels (int x, int y, int width, int height,
+ ColorModel cm, int[] pixels,
+ int offset, int scansize)
+ {
+ if (pixelCache == null)
+ return; // Not sure this should ever happen.
+
+ if (cm.equals(QtImage.nativeModel))
+ for (int i = 0; i < height; i++)
+ System.arraycopy (pixels, offset + (i * scansize),
+ pixelCache, (y + i) * this.width + x,
+ width);
+ else
+ {
+ for (int i = 0; i < height; i++)
+ for (int j = 0; j < width; j++)
+ {
+ // get in AARRGGBB and convert to AABBGGRR
+ int pix = cm.getRGB(pixels[offset + (i * scansize) + x + j]);
+ byte b = (byte)(pix & 0xFF);
+ byte r = (byte)(((pix & 0x00FF0000) >> 16) & 0xFF);
+ pix &= 0xFF00FF00;
+ pix |= ((b & 0xFF) << 16);
+ pix |= (r & 0xFF);
+ pixelCache[(y + i) * this.width + x + j] = pix;
+ }
+ }
+ }
+
+ /**
+ * This is an old method, no idea if it's correct.
+ */
+ private int[] convertPixels (byte[] pixels)
+ {
+ int ret[] = new int[pixels.length];
+
+ for (int i = 0; i < pixels.length; i++)
+ ret[i] = pixels[i] & 0xFF;
+
+ return ret;
+ }
+
+ public synchronized void setProperties (Hashtable props)
+ {
+ this.properties = props;
+ }
+}
+
+