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annotate dwt/custom/CTabFolderLayout.d @ 103:0179b2e17eb2

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Package custom compiles
author Frank Benoit <benoit@tionex.de>
date Fri, 18 Jan 2008 17:00:39 +0100
parents 12e3e0e477cd
children 0f12f6bb9739
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 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 *******************************************************************************/
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11 module dwt.custom.CTabFolderLayout;
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12
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13
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14 import dwt.DWT;
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15 import dwt.graphics.GC;
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16 import dwt.graphics.Point;
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17 import dwt.widgets.Composite;
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18 import dwt.widgets.Control;
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19 import dwt.widgets.Layout;
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20 import dwt.custom.CTabFolder;
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21 import dwt.custom.CTabItem;
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22
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23 /**
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24 * This class provides the layout for CTabFolder
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25 *
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26 * @see CTabFolder
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27 */
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28 class CTabFolderLayout : Layout {
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29 protected Point computeSize(Composite composite, int wHint, int hHint, bool flushCache) {
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30 CTabFolder folder = cast(CTabFolder)composite;
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31 CTabItem[] items = folder.items;
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32 // preferred width of tab area to show all tabs
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33 int tabW = 0;
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34 GC gc = new GC(folder);
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35 for (int i = 0; i < items.length; i++) {
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36 if (folder.single) {
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37 tabW = Math.max(tabW, items[i].preferredWidth(gc, true, false));
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38 } else {
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39 tabW += items[i].preferredWidth(gc, i is folder.selectedIndex, false);
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40 }
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41 }
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42 gc.dispose();
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43 tabW += 3;
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44 if (folder.showMax) tabW += CTabFolder.BUTTON_SIZE;
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45 if (folder.showMin) tabW += CTabFolder.BUTTON_SIZE;
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46 if (folder.single) tabW += 3*CTabFolder.BUTTON_SIZE/2; //chevron
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47 if (folder.topRight !is null) {
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48 Point pt = folder.topRight.computeSize(DWT.DEFAULT, folder.tabHeight, flushCache);
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49 tabW += 3 + pt.x;
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50 }
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51 if (!folder.single && !folder.simple) tabW += folder.curveWidth - 2*folder.curveIndent;
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52
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53 int controlW = 0;
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54 int controlH = 0;
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55 // preferred size of controls in tab items
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56 for (int i = 0; i < items.length; i++) {
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57 Control control = items[i].getControl();
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58 if (control !is null && !control.isDisposed()){
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59 Point size = control.computeSize (wHint, hHint, flushCache);
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60 controlW = Math.max (controlW, size.x);
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61 controlH = Math.max (controlH, size.y);
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62 }
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63 }
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64
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65 int minWidth = Math.max(tabW, controlW);
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66 int minHeight = (folder.minimized) ? 0 : controlH;
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67 if (minWidth is 0) minWidth = CTabFolder.DEFAULT_WIDTH;
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68 if (minHeight is 0) minHeight = CTabFolder.DEFAULT_HEIGHT;
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69
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70 if (wHint !is DWT.DEFAULT) minWidth = wHint;
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71 if (hHint !is DWT.DEFAULT) minHeight = hHint;
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72
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73 return new Point (minWidth, minHeight);
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74 }
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75 protected bool flushCache(Control control) {
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76 return true;
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77 }
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78 protected void layout(Composite composite, bool flushCache) {
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79 CTabFolder folder = cast(CTabFolder)composite;
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80 // resize content
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81 if (folder.selectedIndex !is -1) {
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82 Control control = folder.items[folder.selectedIndex].getControl();
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83 if (control !is null && !control.isDisposed()) {
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84 control.setBounds(folder.getClientArea());
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85 }
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86 }
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87 }
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88 }