Attachment #183605 for bug #289968

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	 * several tiles and updating each tile individually.
	 */
	class ThumbnailUpdater implements Runnable {
		private static final int NUMBER_OF_TILES = 16;
		int maxHBufferSize = 256, maxVBufferSize = 256;
		private int currentHTile, currentVTile;
		private int hTiles, vTiles;
		private boolean isActive = true;

		 * tile size and current tile index.
		 */
		public void resetTileValues() {
			maxHBufferSize = Math.max(1, getSourceRectangle().width
					/ NUMBER_OF_TILES);
			maxVBufferSize = Math.max(1, getSourceRectangle().width
					/ NUMBER_OF_TILES);

			hTiles = (int) Math.ceil((float) getSourceRectangle().width
					/ (float) maxHBufferSize);
			vTiles = (int) Math.ceil((float) getSourceRectangle().height
					/ (float) maxVBufferSize);

			tileSize = new Dimension((int) Math
					.ceil((float) getSourceRectangle().width / (float) hTiles),
							/ (float) hTiles),
					(int) Math.ceil((float) getSourceRectangle().height
							/ (float) vTiles));


Return to bug 289968

Lines 42-48 Link Here

(-)src/org/eclipse/draw2d/parts/Thumbnail.java (-6 / +11 lines)
42	* several tiles and updating each tile individually.	42	* several tiles and updating each tile individually.
43	*/	43	*/
44	class ThumbnailUpdater implements Runnable {	44	class ThumbnailUpdater implements Runnable {
45	static final int MAX_BUFFER_SIZE = 256;	45	private static final int NUMBER_OF_TILES = 16;
		46	int maxHBufferSize = 256, maxVBufferSize = 256;
46	private int currentHTile, currentVTile;	47	private int currentHTile, currentVTile;
47	private int hTiles, vTiles;	48	private int hTiles, vTiles;
48	private boolean isActive = true;	49	private boolean isActive = true;
Lines 109-122 Link Here
109	* tile size and current tile index.	110	* tile size and current tile index.
110	*/	111	*/
111	public void resetTileValues() {	112	public void resetTileValues() {
		113	maxHBufferSize = Math.max(1, getSourceRectangle().width
		114	/ NUMBER_OF_TILES);
		115	maxVBufferSize = Math.max(1, getSourceRectangle().width
		116	/ NUMBER_OF_TILES);
		117
112	hTiles = (int) Math.ceil((float) getSourceRectangle().width	118	hTiles = (int) Math.ceil((float) getSourceRectangle().width
113	/ (float) MAX_BUFFER_SIZE);	119	/ (float) maxHBufferSize);
114	vTiles = (int) Math.ceil((float) getSourceRectangle().height	120	vTiles = (int) Math.ceil((float) getSourceRectangle().height
115	/ (float) MAX_BUFFER_SIZE);	121	/ (float) maxVBufferSize);
116		122
117	tileSize = new Dimension(	123	tileSize = new Dimension((int) Math
118	(int) Math.ceil((float) getSourceRectangle().width	124	.ceil((float) getSourceRectangle().width / (float) hTiles),
119	/ (float) hTiles),
120	(int) Math.ceil((float) getSourceRectangle().height	125	(int) Math.ceil((float) getSourceRectangle().height
121	/ (float) vTiles));	126	/ (float) vTiles));
122		127