Examples of java.awt.image.TileObserver

java.awt.image.TileObserver
An interface for objects that wish to be informed when tiles of a WritableRenderedImage become modifiable by some writer via a call to getWritableTile, and when they become unmodifiable via the last call to releaseWritableTile. @see WritableRenderedImage @author Thomas DeWeese @author Daniel Rice

        if (writers[tileX - minTileX][tileY - minTileY] == 0) {
            numWritableTiles[0]--;


            Enumeration e = tileObservers.elements();
            while (e.hasMoreElements()) {
                TileObserver t = (TileObserver)e.nextElement();
                t.tileUpdate(this, tileX, tileY, false);
            }
        }
    }

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        if (writers[tileX - minTileX][tileY - minTileY] == 1) {
            numWritableTiles[0]++;


            Enumeration e = tileObservers.elements();
            while (e.hasMoreElements()) {
                TileObserver t = (TileObserver)e.nextElement();
                t.tileUpdate(this, tileX, tileY, true);
            }
        }


        // For non-sub-banded image return the tile directly.
        if(bandList == null) {

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        if (writers[tileX - minTileX][tileY - minTileY] == 0) {
            numWritableTiles[0]--;


            Enumeration e = tileObservers.elements();
            while (e.hasMoreElements()) {
                TileObserver t = (TileObserver)e.nextElement();
                t.tileUpdate(this, tileX, tileY, false);
            }
        }
    }

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/* 1121 */     if (this.writers[(tileX - this.minTileX)][(tileY - this.minTileY)] == 1) {
/* 1122 */       this.numWritableTiles[0] += 1;
/*      */ 
/* 1124 */       Enumeration e = this.tileObservers.elements();
/* 1125 */       while (e.hasMoreElements()) {
/* 1126 */         TileObserver t = (TileObserver)e.nextElement();
/* 1127 */         t.tileUpdate(this, tileX, tileY, true);
/*      */       }
/*      */ 
/*      */     }
/*      */ 
/* 1132 */     if (this.bandList == null) {

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/* 1164 */     if (this.writers[(tileX - this.minTileX)][(tileY - this.minTileY)] == 0) {
/* 1165 */       this.numWritableTiles[0] -= 1;
/*      */ 
/* 1167 */       Enumeration e = this.tileObservers.elements();
/* 1168 */       while (e.hasMoreElements()) {
/* 1169 */         TileObserver t = (TileObserver)e.nextElement();
/* 1170 */         t.tileUpdate(this, tileX, tileY, false);
/*      */       }
/*      */     }
/*      */   }

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javax.media.jai.TiledImage

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