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annotate org.eclipse.ui.forms/src/org/eclipse/ui/forms/widgets/SizeCache.d @ 16:dbfb303e8fb0

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first complete successful compile (win-only)
author Frank Benoit <benoit@tionex.de>
date Wed, 18 Mar 2009 08:56:47 +0100
parents bc29606a740c
children
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1 /*******************************************************************************
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2 * Copyright (c) 2004, 2007 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 org.eclipse.ui.forms.widgets.SizeCache;
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14
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15 import org.eclipse.ui.forms.widgets.ILayoutExtension;
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16
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17 import org.eclipse.swt.SWT;
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18 import org.eclipse.swt.graphics.Point;
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19 import org.eclipse.swt.graphics.Rectangle;
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20 import org.eclipse.swt.widgets.Button;
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21 import org.eclipse.swt.widgets.Combo;
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22 import org.eclipse.swt.widgets.Composite;
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23 import org.eclipse.swt.widgets.Control;
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24 import org.eclipse.swt.widgets.Label;
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25 import org.eclipse.swt.widgets.List;
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26 import org.eclipse.swt.widgets.Layout;
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27 import org.eclipse.swt.widgets.ProgressBar;
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28 import org.eclipse.swt.widgets.Sash;
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29 import org.eclipse.swt.widgets.Scale;
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30 import org.eclipse.swt.widgets.Scrollable;
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31 import org.eclipse.swt.widgets.Slider;
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32 import org.eclipse.swt.widgets.Text;
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33 import org.eclipse.swt.widgets.ToolBar;
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34 import org.eclipse.swt.widgets.Tree;
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35 import org.eclipse.jface.util.Geometry;
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36 import org.eclipse.ui.internal.forms.widgets.FormUtil;
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37
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38 import java.lang.all;
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39 import java.util.Set;
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40
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41 /**
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42 * Caches the preferred size of an SWT control
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43 *
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44 * @since 3.0
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45 */
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46 public class SizeCache {
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47 private Control control;
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48
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49 private Point preferredSize;
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50
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51 private int cachedWidthQuery;
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52 private int cachedWidthResult;
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53
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54 private int cachedHeightQuery;
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55 private int cachedHeightResult;
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56
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57 private int minimumWidth;
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58 private int heightAtMinimumWidth = -1;
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59 private int maximumWidth;
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60
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61 /**
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62 * True iff we should recursively flush all children on the next layout
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63 */
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64 private bool flushChildren;
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65
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66 /**
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67 * True iff changing the height hint does not affect the preferred width and changing
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68 * the width hint does not change the preferred height
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69 */
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70 private bool independentDimensions = false;
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71
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72 /**
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73 * True iff the preferred height for any hint larger than the preferred width will not
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74 * change the preferred height.
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75 */
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76 private bool preferredWidthOrLargerIsMinimumHeight = false;
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77
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78 // HACK: these values estimate how much to subtract from the width and height
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79 // hints that get passed into computeSize, in order to produce a result
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80 // that is exactly the desired size. To be removed once bug 46112 is fixed (note:
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81 // bug 46112 is currently flagged as a duplicate, but there is still no workaround).
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82 private int widthAdjustment = 0;
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83
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84 private int heightAdjustment = 0;
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85
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86 private int minimumHeight;
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87
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88 private int widthAtMinimumHeight = -1;
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89
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90 // If the layout is dirty, this is the size of the control at the time its
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91 // layout was dirtied. null if the layout is not dirty.
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92 private Point dirtySize = null;
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93
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94
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95 // END OF HACK
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96
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97 public this() {
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98 this(null);
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99 }
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100
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101 /**
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102 * Creates a cache for size computations on the given control
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103 *
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104 * @param control the control for which sizes will be calculated,
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105 * or null to always return (0,0)
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106 */
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107 public this(Control control) {
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108 setControl(control);
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109 }
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110
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111 /**
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112 * Sets the control whose size is being cached. Does nothing (will not
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113 * even flush the cache) if this is the same control as last time.
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114 *
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115 * @param newControl the control whose size is being cached, or null to always return (0,0)
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116 */
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117 public void setControl(Control newControl) {
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118 if (newControl !is control) {
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119 control = newControl;
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120 if (control is null) {
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121 independentDimensions = true;
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122 preferredWidthOrLargerIsMinimumHeight = false;
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123 widthAdjustment = 0;
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124 heightAdjustment = 0;
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125 } else {
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126 independentDimensions = independentLengthAndWidth(control);
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127 preferredWidthOrLargerIsMinimumHeight = isPreferredWidthMaximum(control);
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128 computeHintOffset(control);
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129 flush();
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130 }
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131 }
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132 }
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133
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134 /**
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135 * Returns the control whose size is being cached
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136 *
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137 * @return the control whose size is being cached, or null if this cache always returns (0,0)
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138 */
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139 public Control getControl() {
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140 return control;
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141 }
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142
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143 /**
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144 * Flush the cache (should be called if the control's contents may have changed since the
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145 * last query)
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146 */
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147 public void flush() {
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148 flush(true);
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149 }
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150
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151 public void flush(bool recursive) {
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152 preferredSize = null;
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153 cachedWidthQuery = -1;
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154 cachedWidthResult = -1;
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155 cachedHeightQuery = -1;
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156 cachedHeightResult = -1;
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157 minimumWidth = -1;
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158 maximumWidth = -1;
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159 minimumHeight = -1;
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160 heightAtMinimumWidth = -1;
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161 widthAtMinimumHeight = -1;
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162
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163 if (recursive || dirtySize !is null) {
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164 if (control is null || control.isDisposed()) {
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165 dirtySize = new Point(0,0);
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166 control = null;
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167 } else {
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168 dirtySize = control.getSize();
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169 }
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170 }
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171
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172 this.flushChildren = this.flushChildren || recursive;
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173 }
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174
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175 private Point getPreferredSize() {
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176 if (preferredSize is null) {
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177 preferredSize = controlComputeSize(SWT.DEFAULT, SWT.DEFAULT);
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178 }
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179
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180 return preferredSize;
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181 }
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182
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183 /**
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184 * Computes the preferred size of the control.
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185 *
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186 * @param widthHint the known width of the control (pixels) or SWT.DEFAULT if unknown
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187 * @param heightHint the known height of the control (pixels) or SWT.DEFAULT if unknown
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188 * @return the preferred size of the control
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189 */
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190 public Point computeSize(int widthHint, int heightHint) {
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191 if (control is null || control.isDisposed()) {
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192 return new Point(0, 0);
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193 }
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194
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195 // If we're asking for a result smaller than the minimum width
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196 int minWidth = computeMinimumWidth();
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197
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198 if (widthHint !is SWT.DEFAULT && widthHint + widthAdjustment < minWidth) {
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199 if (heightHint is SWT.DEFAULT) {
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200 return new Point(minWidth, computeHeightAtMinimumWidth());
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201 }
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202
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203 widthHint = minWidth - widthAdjustment;
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204 }
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205
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206 // If we're asking for a result smaller than the minimum height
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207 int minHeight = computeMinimumHeight();
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208
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209 if (heightHint !is SWT.DEFAULT && heightHint + heightAdjustment < minHeight) {
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210 if (widthHint is SWT.DEFAULT) {
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211 return new Point(computeWidthAtMinimumHeight(), minHeight);
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212 }
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213
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214 heightHint = minHeight - heightAdjustment;
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215 }
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216
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217 // If both dimensions were supplied in the input, compute the trivial result
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218 if (widthHint !is SWT.DEFAULT && heightHint !is SWT.DEFAULT) {
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219 return new Point(widthHint + widthAdjustment, heightHint + heightAdjustment);
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220 }
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221
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222 // No hints given -- find the preferred size
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223 if (widthHint is SWT.DEFAULT && heightHint is SWT.DEFAULT) {
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224 return Geometry.copy(getPreferredSize());
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225 }
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226
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227 // If the length and width are independent, compute the preferred size
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228 // and adjust whatever dimension was supplied in the input
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229 if (independentDimensions) {
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230 Point result = Geometry.copy(getPreferredSize());
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231
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232 if (widthHint !is SWT.DEFAULT) {
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233 result.x = widthHint + widthAdjustment;
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234 }
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235
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236 if (heightHint !is SWT.DEFAULT) {
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237 result.y = heightHint + heightAdjustment;
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238 }
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239
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240 return result;
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241 }
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242
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243 // Computing a height
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244 if (heightHint is SWT.DEFAULT) {
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245 // If we know the control's preferred size
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246 if (preferredSize !is null) {
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247 // If the given width is the preferred width, then return the preferred size
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248 if (widthHint + widthAdjustment is preferredSize.x) {
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249 return Geometry.copy(preferredSize);
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250 }
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251 }
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252
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253 // If we have a cached height measurement
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254 if (cachedHeightQuery !is -1) {
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255 // If this was measured with the same width hint
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256 if (cachedHeightQuery is widthHint) {
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257 return new Point(widthHint + widthAdjustment, cachedHeightResult);
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258 }
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259 }
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260
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261 // If this is a control where any hint larger than the
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262 // preferred width results in the minimum height, determine if
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263 // we can compute the result based on the preferred height
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264 if (preferredWidthOrLargerIsMinimumHeight) {
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265 // Computed the preferred size (if we don't already know it)
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266 getPreferredSize();
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267
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268 // If the width hint is larger than the preferred width, then
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269 // we can compute the result from the preferred width
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270 if (widthHint + widthAdjustment >= preferredSize.x) {
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271 return new Point(widthHint + widthAdjustment, preferredSize.y);
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272 }
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273 }
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274
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275 // Else we can't find an existing size in the cache, so recompute
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276 // it from scratch.
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277 Point newHeight = controlComputeSize(widthHint - widthAdjustment, SWT.DEFAULT);
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278
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279 cachedHeightQuery = heightHint;
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280 cachedHeightResult = newHeight.y;
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281
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282 return newHeight;
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283 }
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284
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285 // Computing a width
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286 if (widthHint is SWT.DEFAULT) {
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287 // If we know the control's preferred size
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288 if (preferredSize !is null) {
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289 // If the given height is the preferred height, then return the preferred size
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290 if (heightHint + heightAdjustment is preferredSize.y) {
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291 return Geometry.copy(preferredSize);
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292 }
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293 }
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294
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295 // If we have a cached width measurement with the same height hint
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parents:
diff changeset
296 if (cachedWidthQuery is heightHint) {
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diff changeset
297 return new Point(cachedWidthResult, heightHint + heightAdjustment);
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298 }
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299
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diff changeset
300 Point widthResult = controlComputeSize(SWT.DEFAULT, heightHint - heightAdjustment);
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301
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diff changeset
302 cachedWidthQuery = heightHint;
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parents:
diff changeset
303 cachedWidthResult = widthResult.x;
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304
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305 return widthResult;
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306 }
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parents:
diff changeset
307
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
308 return controlComputeSize(widthHint, heightHint);
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309 }
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310
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
311 /**
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
312 * Compute the control's size, and ensure that non-default hints are returned verbatim
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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parents:
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313 * (this tries to compensate for SWT's hints, which aren't really the outer width of the
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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314 * control).
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Frank Benoit <benoit@tionex.de>
parents:
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315 *
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Frank Benoit <benoit@tionex.de>
parents:
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316 * @param widthHint the horizontal hint
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Frank Benoit <benoit@tionex.de>
parents:
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317 * @param heightHint the vertical hint
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318 * @return the control's size
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319 */
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320 public Point computeAdjustedSize(int widthHint, int heightHint) {
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parents:
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321 int adjustedWidthHint = widthHint is SWT.DEFAULT ? SWT.DEFAULT : Math
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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322 .max(0, widthHint - widthAdjustment);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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323 int adjustedHeightHint = heightHint is SWT.DEFAULT ? SWT.DEFAULT : Math
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324 .max(0, heightHint - heightAdjustment);
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325
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diff changeset
326 Point result = computeSize(adjustedWidthHint, adjustedHeightHint);
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327
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diff changeset
328 // If the amounts we subtracted off the widthHint and heightHint didn't do the trick, then
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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329 // manually adjust the result to ensure that a non-default hint will return that result verbatim.
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330
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331 return result;
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332 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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333
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Frank Benoit <benoit@tionex.de>
parents:
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334 /**
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Frank Benoit <benoit@tionex.de>
parents:
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335 * Returns true if the preferred length of the given control is
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
336 * independent of the width and visa-versa. If this returns true,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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337 * then changing the widthHint argument to control.computeSize will
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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338 * never change the resulting height and changing the heightHint
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339 * will never change the resulting width. Returns false if unknown.
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parents:
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340 * <p>
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341 * This information can be used to improve caching. Incorrectly returning
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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342 * a value of false may decrease performance, but incorrectly returning
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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343 * a value of true will generate incorrect layouts... so always return
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
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344 * false if unsure.
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Frank Benoit <benoit@tionex.de>
parents:
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345 * </p>
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Frank Benoit <benoit@tionex.de>
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346 *
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parents:
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347 * @param control
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348 * @return
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349 */
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
350 static bool independentLengthAndWidth(Control control) {
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Frank Benoit <benoit@tionex.de>
parents:
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351 if (control is null || control.isDisposed()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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352 return true;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
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353 }
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354
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Frank Benoit <benoit@tionex.de>
parents:
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355 if (null !is cast(Button)control || null !is cast(ProgressBar)control
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356 || null !is cast(Sash)control || null !is cast(Scale)control
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357 || null !is cast(Slider)control || null !is cast(List)control
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parents:
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358 || null !is cast(Combo)control || null !is cast(Tree)control ) {
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parents:
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359 return true;
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Frank Benoit <benoit@tionex.de>
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360 }
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Frank Benoit <benoit@tionex.de>
parents:
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361
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
362 if (null !is cast(Label)control || null !is cast(Text)control ) {
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parents:
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363 return (control.getStyle() & SWT.WRAP) is 0;
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364 }
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
365
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
366 // Unless we're certain that the control has this property, we should
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
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diff changeset
367 // return false.
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parents:
diff changeset
368
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369 return false;
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370 }
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
371
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
372 /**
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
373 * Try to figure out how much we need to subtract from the hints that we
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
374 * pass into the given control's computeSize(...) method. This tries to
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
375 * compensate for bug 46112. To be removed once SWT provides an "official"
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
376 * way to compute one dimension of a control's size given the other known
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
377 * dimension.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
378 *
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
379 * @param control
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
380 */
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
381 private void computeHintOffset(Control control) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
382 if (null !is cast(Scrollable)control ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
383 // For scrollables, subtract off the trim size
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
384 Scrollable scrollable = cast(Scrollable) control;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
385 Rectangle trim = scrollable.computeTrim(0, 0, 0, 0);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
386
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
387 widthAdjustment = trim.width;
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
388 heightAdjustment = trim.height;
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
389 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
390 // For non-composites, subtract off 2 * the border size
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
391 widthAdjustment = control.getBorderWidth() * 2;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
392 heightAdjustment = widthAdjustment;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
393 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
394 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
395
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
396 private Point controlComputeSize(int widthHint, int heightHint) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
397 Point result = control.computeSize(widthHint, heightHint, flushChildren);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
398 flushChildren = false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
399
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
400 return result;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
401 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
402
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
403 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
404 * Returns true only if the control will return a constant height for any
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
405 * width hint larger than the preferred width. Returns false if there is
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
406 * any situation in which the control does not have this property.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
407 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
408 * <p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
409 * Note: this method is only important for wrapping controls, and it can
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
410 * safely return false for anything else. AFAIK, all SWT controls have this
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
411 * property, but to be safe they will only be added to the list once the
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
412 * property has been confirmed.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
413 * </p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
414 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
415 * @param control
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
416 * @return
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
417 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
418 private static bool isPreferredWidthMaximum(Control control) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
419 return (null !is cast(ToolBar)control
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
420 //|| control instanceof CoolBar
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
421 || null !is cast(Label)control );
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
422 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
423
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
424 public int computeMinimumWidth() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
425 if (minimumWidth is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
426 if (null !is cast(Composite)control ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
427 Layout layout = (cast(Composite)control).getLayout();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
428 if (null !is cast(ILayoutExtension)layout ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
429 minimumWidth = (cast(ILayoutExtension)layout).computeMinimumWidth(cast(Composite)control, flushChildren);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
430 flushChildren = false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
431 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
432 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
433 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
434
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
435 if (minimumWidth is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
436 Point minWidth = controlComputeSize(FormUtil.getWidthHint(5, control), SWT.DEFAULT);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
437 minimumWidth = minWidth.x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
438 heightAtMinimumWidth = minWidth.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
439 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
440
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
441 return minimumWidth;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
442 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
443
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
444 public int computeMaximumWidth() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
445 if (maximumWidth is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
446 if (null !is cast(Composite)control ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
447 Layout layout = (cast(Composite)control).getLayout();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
448 if (null !is cast(ILayoutExtension)layout ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
449 maximumWidth = (cast(ILayoutExtension)layout).computeMaximumWidth(cast(Composite)control, flushChildren);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
450 flushChildren = false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
451 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
452 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
453 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
454
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
455 if (maximumWidth is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
456 maximumWidth = getPreferredSize().x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
457 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
458
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
459 return maximumWidth;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
460 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
461
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
462 private int computeHeightAtMinimumWidth() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
463 int minimumWidth = computeMinimumWidth();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
464
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
465 if (heightAtMinimumWidth is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
466 heightAtMinimumWidth = controlComputeSize(minimumWidth - widthAdjustment, SWT.DEFAULT).y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
467 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
468
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
469 return heightAtMinimumWidth;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
470 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
471
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
472 private int computeWidthAtMinimumHeight() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
473 int minimumHeight = computeMinimumHeight();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
474
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
475 if (widthAtMinimumHeight is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
476 widthAtMinimumHeight = controlComputeSize(SWT.DEFAULT, minimumHeight - heightAdjustment).x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
477 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
478
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
479 return widthAtMinimumHeight;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
480 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
481
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
482 private int computeMinimumHeight() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
483 if (minimumHeight is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
484 Point sizeAtMinHeight = controlComputeSize(SWT.DEFAULT, 0);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
485
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
486 minimumHeight = sizeAtMinHeight.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
487 widthAtMinimumHeight = sizeAtMinHeight.x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
488 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
489
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
490 return minimumHeight;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
491 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
492
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
493 public Point computeMinimumSize() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
494 return new Point(computeMinimumWidth(), computeMinimumHeight());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
495 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
496
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
497 public void setSize(Point newSize) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
498 if (control !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
499 control.setSize(newSize);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
500 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
501
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
502 layoutIfNecessary();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
503 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
504
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
505 public void setSize(int width, int height) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
506 if (control !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
507 control.setSize(width, height);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
508 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
509
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
510 layoutIfNecessary();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
511 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
512
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
513 public void setBounds(int x, int y, int width, int height) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
514 if (control !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
515 control.setBounds(x, y, width, height);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
516 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
517
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
518 layoutIfNecessary();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
519 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
520
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
521 public void setBounds(Rectangle bounds) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
522 if (control !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
523 control.setBounds(bounds);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
524 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
525
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
526 layoutIfNecessary();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
527 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
528
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
529 public void layoutIfNecessary() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
530 if (dirtySize !is null && control !is null && null !is cast(Composite)control ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
531 if (control.getSize().opEquals(dirtySize)) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
532 (cast(Composite)control).layout(flushChildren);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
533 flushChildren = false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
534 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
535 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
536 dirtySize = null;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
537 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
538 }