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annotate org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/custom/SashFormLayout.d @ 0:6dd524f61e62

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add dwt win and basic java stuff
author Frank Benoit <benoit@tionex.de>
date Mon, 02 Mar 2009 14:44:16 +0100
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2005 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.swt.custom.SashFormLayout;
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14
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15
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16 import org.eclipse.swt.SWT;
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17 import org.eclipse.swt.graphics.Point;
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18 import org.eclipse.swt.graphics.Rectangle;
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19 import org.eclipse.swt.widgets.Composite;
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20 import org.eclipse.swt.widgets.Control;
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21 import org.eclipse.swt.widgets.Layout;
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22 import org.eclipse.swt.widgets.Sash;
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23 import org.eclipse.swt.custom.SashForm;
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24 import org.eclipse.swt.custom.SashFormData;
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25 import java.lang.all;
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26
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27 /**
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28 * This class provides the layout for SashForm
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29 *
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30 * @see SashForm
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31 */
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32 class SashFormLayout : Layout {
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33 protected override Point computeSize(Composite composite, int wHint, int hHint, bool flushCache) {
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34 SashForm sashForm = cast(SashForm)composite;
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35 Control[] cArray = sashForm.getControls(true);
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36 int width = 0;
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37 int height = 0;
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38 if (cArray.length is 0) {
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39 if (wHint !is SWT.DEFAULT) width = wHint;
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40 if (hHint !is SWT.DEFAULT) height = hHint;
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41 return new Point(width, height);
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42 }
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43 // determine control sizes
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44 bool vertical = sashForm.getOrientation() is SWT.VERTICAL;
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45 int maxIndex = 0;
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46 int maxValue = 0;
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47 for (int i = 0; i < cArray.length; i++) {
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48 if (vertical) {
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49 Point size = cArray[i].computeSize(wHint, SWT.DEFAULT, flushCache);
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50 if (size.y > maxValue) {
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51 maxIndex = i;
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52 maxValue = size.y;
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53 }
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54 width = Math.max(width, size.x);
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55 } else {
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56 Point size = cArray[i].computeSize(SWT.DEFAULT, hHint, flushCache);
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57 if (size.x > maxValue) {
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58 maxIndex = i;
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59 maxValue = size.x;
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60 }
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61 height = Math.max(height, size.y);
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62 }
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63 }
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64 // get the ratios
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65 long[] ratios = new long[cArray.length];
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66 long total = 0;
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67 for (int i = 0; i < cArray.length; i++) {
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68 Object data = cArray[i].getLayoutData();
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69 if ( auto sfd = cast(SashFormData)data) {
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70 ratios[i] = sfd.weight;
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71 } else {
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72 data = new SashFormData();
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73 cArray[i].setLayoutData(data);
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74 (cast(SashFormData)data).weight = ratios[i] = ((200 << 16) + 999) / 1000;
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75
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76 }
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77 total += ratios[i];
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78 }
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79 if (ratios[maxIndex] > 0) {
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80 int sashwidth = sashForm.sashes.length > 0 ? sashForm.SASH_WIDTH + sashForm.sashes [0].getBorderWidth() * 2 : sashForm.SASH_WIDTH;
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81 if (vertical) {
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82 height += cast(int)(total * maxValue / ratios[maxIndex]) + (cArray.length - 1) * sashwidth;
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83 } else {
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84 width += cast(int)(total * maxValue / ratios[maxIndex]) + (cArray.length - 1) * sashwidth;
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85 }
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86 }
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87 width += sashForm.getBorderWidth()*2;
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88 height += sashForm.getBorderWidth()*2;
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89 if (wHint !is SWT.DEFAULT) width = wHint;
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90 if (hHint !is SWT.DEFAULT) height = hHint;
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91 return new Point(width, height);
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92 }
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93
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94 protected override bool flushCache(Control control) {
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95 return true;
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96 }
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97
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98 protected override void layout(Composite composite, bool flushCache) {
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99 SashForm sashForm = cast(SashForm)composite;
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100 Rectangle area = sashForm.getClientArea();
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101 if (area.width <= 1 || area.height <= 1) return;
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102
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103 Control[] newControls = sashForm.getControls(true);
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104 if (sashForm.controls.length is 0 && newControls.length is 0) return;
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105 sashForm.controls = newControls;
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106
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107 Control[] controls = sashForm.controls;
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108
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109 if (sashForm.maxControl !is null && !sashForm.maxControl.isDisposed()) {
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110 for (int i= 0; i < controls.length; i++){
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111 if (controls[i] !is sashForm.maxControl) {
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112 controls[i].setBounds(-200, -200, 0, 0);
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113 } else {
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114 controls[i].setBounds(area);
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115 }
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116 }
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117 return;
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118 }
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119
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120 // keep just the right number of sashes
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121 if (sashForm.sashes.length < controls.length - 1) {
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122 Sash[] newSashes = new Sash[controls.length - 1];
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123 System.arraycopy(sashForm.sashes, 0, newSashes, 0, sashForm.sashes.length);
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124 for (int i = sashForm.sashes.length; i < newSashes.length; i++) {
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125 newSashes[i] = new Sash(sashForm, sashForm.sashStyle);
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126 newSashes[i].setBackground(sashForm.background);
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127 newSashes[i].setForeground(sashForm.foreground);
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128 newSashes[i].addListener(SWT.Selection, sashForm.sashListener);
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129 }
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130 sashForm.sashes = newSashes;
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131 }
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132 if (sashForm.sashes.length > controls.length - 1) {
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133 if (controls.length is 0) {
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134 for (int i = 0; i < sashForm.sashes.length; i++) {
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135 sashForm.sashes[i].dispose();
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136 }
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137 sashForm.sashes = new Sash[0];
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138 } else {
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139 Sash[] newSashes = new Sash[controls.length - 1];
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140 System.arraycopy(sashForm.sashes, 0, newSashes, 0, newSashes.length);
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141 for (int i = controls.length - 1; i < sashForm.sashes.length; i++) {
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142 sashForm.sashes[i].dispose();
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143 }
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144 sashForm.sashes = newSashes;
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145 }
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146 }
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147 if (controls.length is 0) return;
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148 Sash[] sashes = sashForm.sashes;
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149 // get the ratios
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150 long[] ratios = new long[controls.length];
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151 long total = 0;
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152 for (int i = 0; i < controls.length; i++) {
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153 Object data = controls[i].getLayoutData();
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154 if ( auto sfd = cast(SashFormData)data ) {
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155 ratios[i] = sfd.weight;
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156 } else {
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157 data = new SashFormData();
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158 controls[i].setLayoutData(data);
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159 (cast(SashFormData)data).weight = ratios[i] = ((200 << 16) + 999) / 1000;
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160
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161 }
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162 total += ratios[i];
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163 }
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164
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165 int sashwidth = sashes.length > 0 ? sashForm.SASH_WIDTH + sashes [0].getBorderWidth() * 2 : sashForm.SASH_WIDTH;
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166 if (sashForm.getOrientation() is SWT.HORIZONTAL) {
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167 int width = cast(int)(ratios[0] * (area.width - sashes.length * sashwidth) / total);
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168 int x = area.x;
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169 controls[0].setBounds(x, area.y, width, area.height);
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170 x += width;
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171 for (int i = 1; i < controls.length - 1; i++) {
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172 sashes[i - 1].setBounds(x, area.y, sashwidth, area.height);
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173 x += sashwidth;
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174 width = cast(int)(ratios[i] * (area.width - sashes.length * sashwidth) / total);
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175 controls[i].setBounds(x, area.y, width, area.height);
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176 x += width;
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177 }
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178 if (controls.length > 1) {
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179 sashes[sashes.length - 1].setBounds(x, area.y, sashwidth, area.height);
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180 x += sashwidth;
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181 width = area.width - x;
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182 controls[controls.length - 1].setBounds(x, area.y, width, area.height);
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183 }
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184 } else {
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185 int height = cast(int)(ratios[0] * (area.height - sashes.length * sashwidth) / total);
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186 int y = area.y;
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187 controls[0].setBounds(area.x, y, area.width, height);
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188 y += height;
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189 for (int i = 1; i < controls.length - 1; i++) {
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190 sashes[i - 1].setBounds(area.x, y, area.width, sashwidth);
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191 y += sashwidth;
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192 height = cast(int)(ratios[i] * (area.height - sashes.length * sashwidth) / total);
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193 controls[i].setBounds(area.x, y, area.width, height);
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194 y += height;
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195 }
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196 if (controls.length > 1) {
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197 sashes[sashes.length - 1].setBounds(area.x, y, area.width, sashwidth);
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198 y += sashwidth;
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199 height = area.height - y;
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200 controls[controls.length - 1].setBounds(area.x, y, area.width, height);
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201 }
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202
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203 }
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204 }
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205 }