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annotate dwt/custom/CLayoutData.d @ 0:380af2bdd8e5

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Upload of whole dwt tree
author Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
date Sat, 09 Aug 2008 17:00:02 +0200
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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1 /*******************************************************************************
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2 * Copyright (c) 2005 IBM Corporation and others.
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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3 * All rights reserved. This program and the accompanying materials
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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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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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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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 *
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11 * Port to the D Programming language:
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12 * Jacob Carlborg <jacob.carlborg@gmail.com>
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13 *******************************************************************************/
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14 module dwt.custom.CLayoutData;
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15
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16 import dwt.DWT;
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17 import dwt.graphics.Point;
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18 import dwt.widgets.Control;
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19
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20 class CLayoutData {
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21
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22 int defaultWidth = -1, defaultHeight = -1;
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23 int currentWhint, currentHhint, currentWidth = -1, currentHeight = -1;
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24
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25 Point computeSize (Control control, int wHint, int hHint, bool flushCache) {
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26 if (flushCache)
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27 flushCache();
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28 if (wHint is DWT.DEFAULT && hHint is DWT.DEFAULT) {
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29 if (defaultWidth is -1 || defaultHeight is -1) {
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30 Point size = control.computeSize(wHint, hHint, flushCache);
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31 defaultWidth = size.x;
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32 defaultHeight = size.y;
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33 }
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34 return new Point(defaultWidth, defaultHeight);
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35 }
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36 if (currentWidth is -1 || currentHeight is -1 || wHint !is currentWhint || hHint !is currentHhint) {
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37 Point size = control.computeSize(wHint, hHint, flushCache);
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38 currentWhint = wHint;
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39 currentHhint = hHint;
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40 currentWidth = size.x;
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41 currentHeight = size.y;
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42 }
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43 return new Point(currentWidth, currentHeight);
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44 }
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45
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46 void flushCache () {
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47 defaultWidth = defaultHeight = -1;
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48 currentWidth = currentHeight = -1;
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49 }
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50 }