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styledtext: Snippet211, Snippet213, Snippet217, Snippet218, Snippet222, Snippet244
author yidabu <yidabu@gmail.com>
date Fri, 22 Aug 2008 07:27:56 +0800
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155
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2004 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 * yidabu at gmail dot com ( D China http://www.d-programming-language-china.org/ )
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12 *******************************************************************************/
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13
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14 module styledtext.Snippet244;
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15 /*
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16 * StyledText snippet: Draw a box around text.
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17 *
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18 * For a list of all SWT example snippets see
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19 * http://www.eclipse.org/swt/snippets/
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20 */
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21
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22 import dwt.DWT;
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23 import dwt.custom.StyledText;
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24 import dwt.custom.StyleRange;
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25 import dwt.layout.FillLayout;
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26 import dwt.widgets.Display;
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27 import dwt.widgets.Shell;
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28 import dwt.widgets.Listener;
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29 import dwt.widgets.Event;
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30 import dwt.graphics.Color;
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31 import dwt.graphics.Point;
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32
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33 import dwt.dwthelper.utils;
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34 version(JIVE){
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35 import jive.stacktrace;
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36 }
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37
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38 void main() {
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39 static String SEARCH_STRING = "box";
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40 Display display = new Display();
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41 Color RED = display.getSystemColor(DWT.COLOR_RED);
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42 Shell shell = new Shell(display);
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43 shell.setBounds(10,10,250,250);
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44 StyledText text = new StyledText(shell, DWT.NONE);
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45 text.setBounds(10,10,200,200);
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46
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47 void onPaint(Event event) {
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48 String contents = text.getText();
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49 int stringWidth = event.gc.stringExtent(SEARCH_STRING).x;
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50 int lineHeight = text.getLineHeight();
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51 event.gc.setForeground(RED);
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52 int index = contents.indexOf(SEARCH_STRING);
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53 while (index != -1) {
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54 Point topLeft = text.getLocationAtOffset(index);
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55 event.gc.drawRectangle(topLeft.x - 1, topLeft.y, stringWidth + 1, lineHeight - 1);
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56 index = contents.indexOf(SEARCH_STRING, index + 1);
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57 }
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58 }
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59
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60 text.addListener(DWT.Paint, dgListener(&onPaint));
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61
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62 text.setText("This demonstrates drawing a box\naround every occurrence of the word\nbox in the StyledText");
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63 shell.open();
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64 while (!shell.isDisposed()) {
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65 if (!display.readAndDispatch()) display.sleep();
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66 }
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67 display.dispose();
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68 }