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1 /*******************************************************************************
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2 * Copyright (c) 2005 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.swt.layout.FillData;
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14
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15 import org.eclipse.swt.SWT;
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16 import org.eclipse.swt.graphics.Point;
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17 import org.eclipse.swt.widgets.Control;
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18
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19 class FillData {
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20
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21 int defaultWidth = -1, defaultHeight = -1;
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22 int currentWhint, currentHhint, currentWidth = -1, currentHeight = -1;
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23
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24 Point computeSize (Control control, int wHint, int hHint, bool flushCache_) {
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25 if (flushCache_) flushCache();
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26 if (wHint is SWT.DEFAULT && hHint is SWT.DEFAULT) {
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27 if (defaultWidth is -1 || defaultHeight is -1) {
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28 Point size = control.computeSize (wHint, hHint, flushCache_);
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29 defaultWidth = size.x;
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30 defaultHeight = size.y;
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31 }
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32 return new Point(defaultWidth, defaultHeight);
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33 }
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34 if (currentWidth is -1 || currentHeight is -1 || wHint !is currentWhint || hHint !is currentHhint) {
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35 Point size = control.computeSize (wHint, hHint, flushCache_);
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36 currentWhint = wHint;
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37 currentHhint = hHint;
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38 currentWidth = size.x;
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39 currentHeight = size.y;
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40 }
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41 return new Point(currentWidth, currentHeight);
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42 }
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43 void flushCache () {
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44 defaultWidth = defaultHeight = -1;
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45 currentWidth = currentHeight = -1;
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46 }
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47 }
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