annotate dwt/layout/RowLayout.d @ 213:36f5cb12e1a2

Update to SWT 3.4M7
author Frank Benoit <benoit@tionex.de>
date Sat, 17 May 2008 17:34:28 +0200
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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 * 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 dwt.layout.RowLayout;
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14
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15 import dwt.DWT;
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16 import dwt.graphics.Point;
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17 import dwt.graphics.Rectangle;
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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.widgets.Composite;
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21 import dwt.layout.RowData;
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22 import tango.util.Convert;
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23 import Math = tango.math.Math;
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24 import dwt.dwthelper.utils;
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25
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26
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27 /**
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28 * Instances of this class determine the size and position of the
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29 * children of a <code>Composite</code> by placing them either in
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30 * horizontal rows or vertical columns within the parent <code>Composite</code>.
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31 * <p>
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32 * <code>RowLayout</code> aligns all controls in one row if the
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33 * <code>type</code> is set to horizontal, and one column if it is
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34 * set to vertical. It has the ability to wrap, and provides configurable
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35 * margins and spacing. <code>RowLayout</code> has a number of configuration
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36 * fields. In addition, the height and width of each control in a
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37 * <code>RowLayout</code> can be specified by setting a <code>RowData</code>
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38 * object into the control using <code>setLayoutData ()</code>.
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39 * </p>
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40 * <p>
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41 * The following example code creates a <code>RowLayout</code>, sets all
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42 * of its fields to non-default values, and then sets it into a
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43 * <code>Shell</code>.
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44 * <pre>
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45 * RowLayout rowLayout = new RowLayout();
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46 * rowLayout.wrap = false;
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47 * rowLayout.pack = false;
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48 * rowLayout.justify = true;
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49 * rowLayout.type = DWT.VERTICAL;
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50 * rowLayout.marginLeft = 5;
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51 * rowLayout.marginTop = 5;
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52 * rowLayout.marginRight = 5;
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53 * rowLayout.marginBottom = 5;
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54 * rowLayout.spacing = 0;
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55 * shell.setLayout(rowLayout);
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56 * </pre>
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57 * If you are using the default field values, you only need one line of code:
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58 * <pre>
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59 * shell.setLayout(new RowLayout());
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60 * </pre>
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61 * </p>
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62 *
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63 * @see RowData
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64 */
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65 public final class RowLayout : Layout {
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66
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67 /**
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68 * type specifies whether the layout places controls in rows or
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69 * columns.
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70 *
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71 * The default value is HORIZONTAL.
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72 *
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73 * Possible values are: <ul>
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74 * <li>HORIZONTAL: Position the controls horizontally from left to right</li>
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75 * <li>VERTICAL: Position the controls vertically from top to bottom</li>
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76 * </ul>
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77 *
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78 * @since 2.0
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79 */
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80 public int type = DWT.HORIZONTAL;
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81
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82 /**
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83 * marginWidth specifies the number of pixels of horizontal margin
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84 * that will be placed along the left and right edges of the layout.
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85 *
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86 * The default value is 0.
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87 *
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88 * @since 3.0
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89 */
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90 public int marginWidth = 0;
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91
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92 /**
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93 * marginHeight specifies the number of pixels of vertical margin
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94 * that will be placed along the top and bottom edges of the layout.
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95 *
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96 * The default value is 0.
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97 *
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98 * @since 3.0
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99 */
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100 public int marginHeight = 0;
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101
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102 /**
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103 * spacing specifies the number of pixels between the edge of one cell
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104 * and the edge of its neighbouring cell.
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105 *
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106 * The default value is 3.
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107 */
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108 public int spacing = 3;
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109
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110 /**
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111 * wrap specifies whether a control will be wrapped to the next
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112 * row if there is insufficient space on the current row.
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113 *
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114 * The default value is true.
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115 */
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116 public bool wrap = true;
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117
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118 /**
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119 * pack specifies whether all controls in the layout take
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120 * their preferred size. If pack is false, all controls will
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121 * have the same size which is the size required to accommodate the
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122 * largest preferred height and the largest preferred width of all
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123 * the controls in the layout.
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124 *
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125 * The default value is true.
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126 */
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127 public bool pack = true;
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128
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129 /**
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130 * fill specifies whether the controls in a row should be
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131 * all the same height for horizontal layouts, or the same
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132 * width for vertical layouts.
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133 *
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134 * The default value is false.
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135 *
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136 * @since 3.0
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137 */
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138 public bool fill = false;
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139
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140 /**
213
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141 * center specifies whether the controls in a row should be
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142 * centered vertically in each cell for horizontal layouts,
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143 * or centered horizontally in each cell for vertical layouts.
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144 *
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145 * The default value is false.
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146 *
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147 * @since 3.4
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148 */
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149 public bool center = false;
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150
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151 /**
0
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152 * justify specifies whether the controls in a row should be
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153 * fully justified, with any extra space placed between the controls.
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154 *
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155 * The default value is false.
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156 */
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157 public bool justify = false;
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158
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159 /**
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160 * marginLeft specifies the number of pixels of horizontal margin
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161 * that will be placed along the left edge of the layout.
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162 *
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163 * The default value is 3.
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164 */
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165 public int marginLeft = 3;
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166
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167 /**
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168 * marginTop specifies the number of pixels of vertical margin
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169 * that will be placed along the top edge of the layout.
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170 *
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171 * The default value is 3.
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172 */
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173 public int marginTop = 3;
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174
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175 /**
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176 * marginRight specifies the number of pixels of horizontal margin
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177 * that will be placed along the right edge of the layout.
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178 *
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179 * The default value is 3.
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180 */
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181 public int marginRight = 3;
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182
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183 /**
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184 * marginBottom specifies the number of pixels of vertical margin
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185 * that will be placed along the bottom edge of the layout.
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186 *
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187 * The default value is 3.
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188 */
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189 public int marginBottom = 3;
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190
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191 /**
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192 * Constructs a new instance of this class.
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193 */
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194 public this () {
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195 }
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196
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197 /**
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198 * Constructs a new instance of this class given the type.
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199 *
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200 * @param type the type of row layout
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201 *
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202 * @since 2.0
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203 */
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204 public this (int type) {
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205 this.type = type;
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206 }
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207
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208 override protected Point computeSize (Composite composite, int wHint, int hHint, bool flushCache_) {
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209 Point extent;
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210 if (type is DWT.HORIZONTAL) {
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211 extent = layoutHorizontal (composite, false, (wHint !is DWT.DEFAULT) && wrap, wHint, flushCache_);
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212 } else {
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213 extent = layoutVertical (composite, false, (hHint !is DWT.DEFAULT) && wrap, hHint, flushCache_);
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214 }
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215 if (wHint !is DWT.DEFAULT) extent.x = wHint;
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216 if (hHint !is DWT.DEFAULT) extent.y = hHint;
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217 return extent;
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218 }
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219
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220 Point computeSize (Control control, bool flushCache_) {
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221 int wHint = DWT.DEFAULT, hHint = DWT.DEFAULT;
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222 RowData data = cast(RowData) control.getLayoutData ();
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223 if (data !is null) {
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224 wHint = data.width;
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225 hHint = data.height;
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226 }
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227 return control.computeSize (wHint, hHint, flushCache_);
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228 }
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229
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230 override protected bool flushCache (Control control) {
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231 return true;
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232 }
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233
212
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234 String getName () {
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235 String string = this.classinfo.name;
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236 int index = string.lastIndexOf('.');
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237 if (index is -1 ) return string;
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238 return string[ index + 1 .. string.length ];
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239 }
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240
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241 override protected void layout (Composite composite, bool flushCache_) {
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242 Rectangle clientArea = composite.getClientArea ();
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243 if (type is DWT.HORIZONTAL) {
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244 layoutHorizontal (composite, true, wrap, clientArea.width, flushCache_);
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245 } else {
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246 layoutVertical (composite, true, wrap, clientArea.height, flushCache_);
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247 }
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248 }
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249
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250 Point layoutHorizontal (Composite composite, bool move, bool wrap, int width, bool flushCache_) {
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251 Control [] children = composite.getChildren ();
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252 int count = 0;
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253 for (int i=0; i<children.length; i++) {
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254 Control control = children [i];
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255 RowData data = cast(RowData) control.getLayoutData ();
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256 if (data is null || !data.exclude) {
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257 children [count++] = children [i];
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258 }
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259 }
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260 if (count is 0) {
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261 return new Point (marginLeft + marginWidth * 2 + marginRight, marginTop + marginHeight * 2 + marginBottom);
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262 }
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263 int childWidth = 0, childHeight = 0, maxHeight = 0;
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264 if (!pack) {
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265 for (int i=0; i<count; i++) {
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266 Control child = children [i];
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267 Point size = computeSize (child, flushCache_);
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268 childWidth = Math.max (childWidth, size.x);
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269 childHeight = Math.max (childHeight, size.y);
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270 }
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271 maxHeight = childHeight;
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272 }
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273 int clientX = 0, clientY = 0;
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274 if (move) {
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275 Rectangle rect = composite.getClientArea ();
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276 clientX = rect.x;
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277 clientY = rect.y;
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278 }
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279 int [] wraps = null;
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280 bool wrapped = false;
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281 Rectangle [] bounds = null;
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282 if (move && (justify || fill || center)) {
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283 bounds = new Rectangle [count];
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284 wraps = new int [count];
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285 }
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286 int maxX = 0, x = marginLeft + marginWidth, y = marginTop + marginHeight;
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287 for (int i=0; i<count; i++) {
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288 Control child = children [i];
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289 if (pack) {
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290 Point size = computeSize (child, flushCache_);
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291 childWidth = size.x;
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292 childHeight = size.y;
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293 }
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294 if (wrap && (i !is 0) && (x + childWidth > width)) {
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295 wrapped = true;
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296 if (move && (justify || fill || center)) wraps [i - 1] = maxHeight;
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297 x = marginLeft + marginWidth;
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298 y += spacing + maxHeight;
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299 if (pack) maxHeight = 0;
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300 }
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301 if (pack || fill || center) {
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302 maxHeight = Math.max (maxHeight, childHeight);
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303 }
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304 if (move) {
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305 int childX = x + clientX, childY = y + clientY;
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306 if (justify || fill || center) {
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307 bounds [i] = new Rectangle (childX, childY, childWidth, childHeight);
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308 } else {
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309 child.setBounds (childX, childY, childWidth, childHeight);
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310 }
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311 }
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312 x += spacing + childWidth;
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313 maxX = Math.max (maxX, x);
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314 }
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315 maxX = Math.max (clientX + marginLeft + marginWidth, maxX - spacing);
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316 if (!wrapped) maxX += marginRight + marginWidth;
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317 if (move && (justify || fill || center)) {
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318 int space = 0, margin = 0;
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319 if (!wrapped) {
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320 space = Math.max (0, (width - maxX) / (count + 1));
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321 margin = Math.max (0, ((width - maxX) % (count + 1)) / 2);
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322 } else {
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323 if (fill || justify || center) {
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324 int last = 0;
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325 if (count > 0) wraps [count - 1] = maxHeight;
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326 for (int i=0; i<count; i++) {
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327 if (wraps [i] !is 0) {
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328 int wrapCount = i - last + 1;
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329 if (justify) {
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330 int wrapX = 0;
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331 for (int j=last; j<=i; j++) {
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332 wrapX += bounds [j].width + spacing;
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333 }
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334 space = Math.max (0, (width - wrapX) / (wrapCount + 1));
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335 margin = Math.max (0, ((width - wrapX) % (wrapCount + 1)) / 2);
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336 }
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337 for (int j=last; j<=i; j++) {
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338 if (justify) bounds [j].x += (space * (j - last + 1)) + margin;
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339 if (fill) {
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340 bounds [j].height = wraps [i];
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341 } else {
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342 if (center) {
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343 bounds [j].y += Math.max (0, (wraps [i] - bounds [j].height) / 2);
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344 }
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345 }
0
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346 }
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347 last = i + 1;
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348 }
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John Reimer <terminal.node@gmail.com
parents:
diff changeset
349 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
350 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
351 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
352 for (int i=0; i<count; i++) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
353 if (!wrapped) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
354 if (justify) bounds [i].x += (space * (i + 1)) + margin;
213
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
355 if (fill) {
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
356 bounds [i].height = maxHeight;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
357 } else {
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
358 if (center) {
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
359 bounds [i].y += Math.max (0, (maxHeight - bounds [i].height) / 2);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
360 }
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
361 }
0
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
362 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
363 children [i].setBounds (bounds [i]);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
364 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
365 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
366 return new Point (maxX, y + maxHeight + marginBottom + marginHeight);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
367 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
368
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
369 Point layoutVertical (Composite composite, bool move, bool wrap, int height, bool flushCache_) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
370 Control [] children = composite.getChildren ();
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
371 int count = 0;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
372 for (int i=0; i<children.length; i++) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
373 Control control = children [i];
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
374 RowData data = cast(RowData) control.getLayoutData ();
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
375 if (data is null || !data.exclude) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
376 children [count++] = children [i];
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
377 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
378 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
379 if (count is 0) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
380 return new Point (marginLeft + marginWidth * 2 + marginRight, marginTop + marginHeight * 2 + marginBottom);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
381 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
382 int childWidth = 0, childHeight = 0, maxWidth = 0;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
383 if (!pack) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
384 for (int i=0; i<count; i++) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
385 Control child = children [i];
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
386 Point size = computeSize (child, flushCache_);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
387 childWidth = Math.max (childWidth, size.x);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
388 childHeight = Math.max (childHeight, size.y);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
389 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
390 maxWidth = childWidth;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
391 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
392 int clientX = 0, clientY = 0;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
393 if (move) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
394 Rectangle rect = composite.getClientArea ();
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
395 clientX = rect.x;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
396 clientY = rect.y;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
397 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
398 int [] wraps = null;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
399 bool wrapped = false;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
400 Rectangle [] bounds = null;
213
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
401 if (move && (justify || fill || center)) {
0
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
402 bounds = new Rectangle [count];
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
403 wraps = new int [count];
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
404 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
405 int maxY = 0, x = marginLeft + marginWidth, y = marginTop + marginHeight;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
406 for (int i=0; i<count; i++) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
407 Control child = children [i];
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
408 if (pack) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
409 Point size = computeSize (child, flushCache_);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
410 childWidth = size.x;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
411 childHeight = size.y;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
412 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
413 if (wrap && (i !is 0) && (y + childHeight > height)) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
414 wrapped = true;
213
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
415 if (move && (justify || fill || center)) wraps [i - 1] = maxWidth;
0
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
416 x += spacing + maxWidth;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
417 y = marginTop + marginHeight;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
418 if (pack) maxWidth = 0;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
419 }
213
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
420 if (pack || fill || center) {
0
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
421 maxWidth = Math.max (maxWidth, childWidth);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
422 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
423 if (move) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
424 int childX = x + clientX, childY = y + clientY;
213
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
425 if (justify || fill || center) {
0
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
426 bounds [i] = new Rectangle (childX, childY, childWidth, childHeight);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
427 } else {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
428 child.setBounds (childX, childY, childWidth, childHeight);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
429 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
430 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
431 y += spacing + childHeight;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
432 maxY = Math.max (maxY, y);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
433 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
434 maxY = Math.max (clientY + marginTop + marginHeight, maxY - spacing);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
435 if (!wrapped) maxY += marginBottom + marginHeight;
213
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
436 if (move && (justify || fill || center)) {
0
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
437 int space = 0, margin = 0;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
438 if (!wrapped) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
439 space = Math.max (0, (height - maxY) / (count + 1));
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
440 margin = Math.max (0, ((height - maxY) % (count + 1)) / 2);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
441 } else {
213
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
442 if (fill || justify || center) {
0
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
443 int last = 0;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
444 if (count > 0) wraps [count - 1] = maxWidth;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
445 for (int i=0; i<count; i++) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
446 if (wraps [i] !is 0) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
447 int wrapCount = i - last + 1;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
448 if (justify) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
449 int wrapY = 0;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
450 for (int j=last; j<=i; j++) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
451 wrapY += bounds [j].height + spacing;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
452 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
453 space = Math.max (0, (height - wrapY) / (wrapCount + 1));
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
454 margin = Math.max (0, ((height - wrapY) % (wrapCount + 1)) / 2);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
455 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
456 for (int j=last; j<=i; j++) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
457 if (justify) bounds [j].y += (space * (j - last + 1)) + margin;
213
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
458 if (fill) {
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
459 bounds [j].width = wraps [i];
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
460 } else {
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
461 if (center) {
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
462 bounds [j].x += Math.max (0, (wraps [i] - bounds [j].width) / 2);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
463 }
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
464 }
0
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
465 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
466 last = i + 1;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
467 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
468 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
469 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
470 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
471 for (int i=0; i<count; i++) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
472 if (!wrapped) {
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
473 if (justify) bounds [i].y += (space * (i + 1)) + margin;
213
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
474 if (fill) {
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
475 bounds [i].width = maxWidth;
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
476 } else {
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
477 if (center) {
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
478 bounds [i].x += Math.max (0, (maxWidth - bounds [i].width) / 2);
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
479 }
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
480 }
36f5cb12e1a2 Update to SWT 3.4M7
Frank Benoit <benoit@tionex.de>
parents: 212
diff changeset
481
0
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
482 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
483 children [i].setBounds (bounds [i]);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
484 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
485 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
486 return new Point (x + maxWidth + marginRight + marginWidth, maxY);
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
487 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
488
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
489 /**
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
490 * Returns a string containing a concise, human-readable
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
491 * description of the receiver.
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
492 *
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
493 * @return a string representation of the layout
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
494 */
212
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
495 override public String toString () {
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
496 String string = getName ()~" {";
0
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
497 string ~= "type="~((type !is DWT.HORIZONTAL) ? "DWT.VERTICAL" : "DWT.HORIZONTAL")~" ";
212
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
498 if (marginWidth !is 0) string ~= "marginWidth="~to!(String)(marginWidth)~" ";
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
499 if (marginHeight !is 0) string ~= "marginHeight="~to!(String)(marginHeight)~" ";
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
500 if (marginLeft !is 0) string ~= "marginLeft="~to!(String)(marginLeft)~" ";
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
501 if (marginTop !is 0) string ~= "marginTop="~to!(String)(marginTop)~" ";
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
502 if (marginRight !is 0) string ~= "marginRight="~to!(String)(marginRight)~" ";
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
503 if (marginBottom !is 0) string ~= "marginBottom="~to!(String)(marginBottom)~" ";
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
504 if (spacing !is 0) string ~= "spacing="~to!(String)(spacing)~" ";
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
505 string ~= "wrap="~to!(String)(wrap)~" ";
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
506 string ~= "pack="~to!(String)(pack)~" ";
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
507 string ~= "fill="~to!(String)(fill)~" ";
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
508 string ~= "justify="~to!(String)(justify)~" ";
ab60f3309436 reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents: 48
diff changeset
509 string = string.trim();
0
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
510 string ~= "}";
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
511 return string;
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
512 }
5406a8f6526d Add initial files
John Reimer <terminal.node@gmail.com
parents:
diff changeset
513 }