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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2006 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.layout.RowData;
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12
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13 import dwt.SWT;
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14 import dwt.graphics.Point;
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15 import dwt.widgets.Control;
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16
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17 import tango.text.Util;
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18 import tango.util.Convert;
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19
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20 /**
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21 * Each control controlled by a <code>RowLayout</code> can have its initial
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22 * width and height specified by setting a <code>RowData</code> object
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23 * into the control.
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24 * <p>
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25 * The following code uses a <code>RowData</code> object to change the initial
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26 * size of a <code>Button</code> in a <code>Shell</code>:
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27 * <pre>
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28 * Display display = new Display();
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29 * Shell shell = new Shell(display);
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30 * shell.setLayout(new RowLayout());
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31 * Button button1 = new Button(shell, SWT.PUSH);
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32 * button1.setText("Button 1");
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33 * button1.setLayoutData(new RowData(50, 40));
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34 * </pre>
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35 * </p>
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36 *
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37 * @see RowLayout
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38 */
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39 public final class RowData {
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40 /**
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41 * width specifies the desired width in pixels. This value
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42 * is the wHint passed into Control.computeSize(int, int, bool)
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43 * to determine the preferred size of the control.
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44 *
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45 * The default value is SWT.DEFAULT.
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46 *
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47 * @see dwt.widgets.Control#computeSize(int, int, bool)
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48 */
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49 public int width = SWT.DEFAULT;
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50 /**
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51 * height specifies the preferred height in pixels. This value
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52 * is the hHint passed into Control.computeSize(int, int, bool)
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53 * to determine the preferred size of the control.
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54 *
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55 * The default value is SWT.DEFAULT.
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56 *
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57 * @see dwt.widgets.Control#computeSize(int, int, bool)
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58 */
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59 public int height = SWT.DEFAULT;
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60
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61 /**
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62 * exclude informs the layout to ignore this control when sizing
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63 * and positioning controls. If this value is <code>true</code>,
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64 * the size and position of the control will not be managed by the
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65 * layout. If this value is <code>false</code>, the size and
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66 * position of the control will be computed and assigned.
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67 *
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68 * The default value is <code>false</code>.
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69 *
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70 * @since 3.1
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71 */
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72 public bool exclude = false;
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73
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74 /**
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75 * Constructs a new instance of RowData using
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76 * default values.
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77 */
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78 public this () {
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79 }
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80
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81 /**
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82 * Constructs a new instance of RowData according to the parameters.
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83 * A value of SWT.DEFAULT indicates that no minimum width or
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84 * no minimum height is specified.
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85 *
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86 * @param width a minimum width for the control
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87 * @param height a minimum height for the control
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88 */
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89 public this (int width, int height) {
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90 this.width = width;
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91 this.height = height;
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92 }
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93
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94 /**
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95 * Constructs a new instance of RowData according to the parameter.
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96 * A value of SWT.DEFAULT indicates that no minimum width or
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97 * no minimum height is specified.
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98 *
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99 * @param point a point whose x coordinate specifies a minimum width for the control
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100 * and y coordinate specifies a minimum height for the control
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101 */
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102 public this (Point point) {
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103 this (point.x, point.y);
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104 }
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105
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106 char[] getName () {
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107 char[] string = this.classinfo.name;
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108 int index = locatePrior( string, '.');
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109 if (index is string.length ) return string;
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110 return string[ index + 1 .. string.length ];
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111 }
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112
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113 /**
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114 * Returns a string containing a concise, human-readable
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115 * description of the receiver.
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116 *
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117 * @return a string representation of the RowData object
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118 */
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119 public char[] toString () {
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120 char[] string = getName ()~" {";
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121 if (width !is SWT.DEFAULT) string ~= "width="~to!(char[])(width)~" ";
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122 if (height !is SWT.DEFAULT) string ~= "height="~to!(char[])(height)~" ";
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123 if (exclude) string ~= "exclude="~to!(char[])(exclude)~" ";
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124 string = trim( string );
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125 string ~= "}";
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126 return string;
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127 }
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128 }
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