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annotate dwtx/draw2d/PositionConstants.d @ 98:95307ad235d9

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Added Draw2d code, still work in progress
author Frank Benoit <benoit@tionex.de>
date Sun, 03 Aug 2008 00:52:14 +0200
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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 * 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 dwtx.draw2d.PositionConstants;
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14
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15 import dwt.dwthelper.utils;
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16
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17 /**
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18 * Constants representing cardinal directions and relative positions. Some of these
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19 * constants can be grouped as follows:
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20 * <TABLE border="1" cellpadding="5" cellspacing="0">
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21 * <TBODY>
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22 * <TR>
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23 * <TD>LEFT, CENTER, RIGHT</TD>
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24 * <TD>Used to describe horizontal position.</TD>
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25 * </TR>
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26 * <TR>
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27 * <TD>TOP, MIDDLE, BOTTOM</TD>
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28 * <TD>Used to describe vertical position.</TD>
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29 * </TR>
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30 * <TR>
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31 * <TD>NORTH, SOUTH, EAST, WEST</TD>
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32 * <TD>Used to describe the four positions relative to an object's center point.
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33 * May also be used when describing which direction an object is facing.<BR>
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34 * NOTE: If you have a use for all four of these possibilities, do not use TOP,
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35 * BOTTOM, RIGHT, LEFT in place of NORTH, SOUTH, EAST, WEST.</TD>
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36 * </TR>
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37 * </TBODY>
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38 * </TABLE>
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39 */
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40 public interface PositionConstants {
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41
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42 /** None */
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43 static const int NONE = 0;
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44
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45 /** Left */
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46 static const int LEFT = 1;
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47 /** Center (Horizontal) */
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48 static const int CENTER = 2;
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49 /** Right */
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50 static const int RIGHT = 4;
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51 /** Bit-wise OR of LEFT, CENTER, and RIGHT */
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52 static const int LEFT_CENTER_RIGHT = LEFT | CENTER | RIGHT;
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53 /** Used to signify left alignment regardless of orientation (i.e., LTR or RTL) */
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54 static const int ALWAYS_LEFT = 64;
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55 /** Used to signify right alignment regardless of orientation (i.e., LTR or RTL) */
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56 static const int ALWAYS_RIGHT = 128;
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57
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58 /** Top */
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59 static const int TOP = 8;
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60 /** Middle (Vertical) */
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61 static const int MIDDLE = 16;
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62 /** Bottom */
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63 static const int BOTTOM = 32;
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64 /** Bit-wise OR of TOP, MIDDLE, and BOTTOM */
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65 static const int TOP_MIDDLE_BOTTOM = TOP | MIDDLE | BOTTOM;
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66
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67 /** North */
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68 static const int NORTH = 1;
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69 /** South */
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70 static const int SOUTH = 4;
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71 /** West */
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72 static const int WEST = 8;
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73 /** East */
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74 static const int EAST = 16;
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75
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76 /** A constant indicating horizontal direction */
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77 static const int HORIZONTAL = 64;
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78 /** A constant indicating vertical direction */
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79 static const int VERTICAL = 128;
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80
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81 /** North-East: a bit-wise OR of {@link #NORTH} and {@link #EAST} */
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82 static const int NORTH_EAST = NORTH | EAST;
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83 /** North-West: a bit-wise OR of {@link #NORTH} and {@link #WEST} */
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84 static const int NORTH_WEST = NORTH | WEST;
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85 /** South-East: a bit-wise OR of {@link #SOUTH} and {@link #EAST} */
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86 static const int SOUTH_EAST = SOUTH | EAST;
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87 /** South-West: a bit-wise OR of {@link #SOUTH} and {@link #WEST} */
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88 static const int SOUTH_WEST = SOUTH | WEST;
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89 /** North-South: a bit-wise OR of {@link #NORTH} and {@link #SOUTH} */
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90 static const int NORTH_SOUTH = NORTH | SOUTH;
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91 /** East-West: a bit-wise OR of {@link #EAST} and {@link #WEST} */
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92 static const int EAST_WEST = EAST | WEST;
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93
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94 /** North-South-East-West: a bit-wise OR of all 4 directions. */
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95 static const int NSEW = NORTH_SOUTH | EAST_WEST;
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96
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97 }