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annotate dwt/custom/SashFormLayout.d @ 7:e831403a80a9

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Add 'cast' to casts
author Frank Benoit <benoit@tionex.de>
date Wed, 27 Aug 2008 14:30:35 +0200
parents 380af2bdd8e5
children a9ab4c738ed8
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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 *******************************************************************************/
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11 module dwt.custom;
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12
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13 import dwt.*;
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14 import dwt.graphics.*;
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15 import dwt.widgets.*;
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16
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17 /**
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18 * This class provides the layout for SashForm
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19 *
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20 * @see SashForm
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21 */
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22 class SashFormLayout : Layout {
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23 protected Point computeSize(Composite composite, int wHint, int hHint, bool flushCache) {
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24 SashForm sashForm = cast(SashForm)composite;
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25 Control[] cArray = sashForm.getControls(true);
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26 int width = 0;
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27 int height = 0;
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28 if (cArray.length is 0) {
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29 if (wHint !is DWT.DEFAULT) width = wHint;
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30 if (hHint !is DWT.DEFAULT) height = hHint;
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31 return new Point(width, height);
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32 }
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33 // determine control sizes
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34 bool vertical = sashForm.getOrientation() is DWT.VERTICAL;
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35 int maxIndex = 0;
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36 int maxValue = 0;
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37 for (int i = 0; i < cArray.length; i++) {
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38 if (vertical) {
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39 Point size = cArray[i].computeSize(wHint, DWT.DEFAULT, flushCache);
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40 if (size.y > maxValue) {
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41 maxIndex = i;
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42 maxValue = size.y;
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43 }
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44 width = Math.max(width, size.x);
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45 } else {
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46 Point size = cArray[i].computeSize(DWT.DEFAULT, hHint, flushCache);
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47 if (size.x > maxValue) {
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48 maxIndex = i;
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49 maxValue = size.x;
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50 }
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51 height = Math.max(height, size.y);
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52 }
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53 }
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54 // get the ratios
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55 long[] ratios = new long[cArray.length];
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56 long total = 0;
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57 for (int i = 0; i < cArray.length; i++) {
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58 Object data = cArray[i].getLayoutData();
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59 if (data !is null && data instanceof SashFormData) {
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60 ratios[i] = (cast(SashFormData)data).weight;
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61 } else {
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62 data = new SashFormData();
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63 cArray[i].setLayoutData(data);
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64 (cast(SashFormData)data).weight = ratios[i] = ((200 << 16) + 999) / 1000;
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65
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66 }
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67 total += ratios[i];
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68 }
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69 if (ratios[maxIndex] > 0) {
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70 int sashwidth = sashForm.sashes.length > 0 ? sashForm.SASH_WIDTH + sashForm.sashes [0].getBorderWidth() * 2 : sashForm.SASH_WIDTH;
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71 if (vertical) {
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72 height += cast(int)(total * maxValue / ratios[maxIndex]) + (cArray.length - 1) * sashwidth;
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73 } else {
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74 width += cast(int)(total * maxValue / ratios[maxIndex]) + (cArray.length - 1) * sashwidth;
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75 }
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76 }
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77 width += sashForm.getBorderWidth()*2;
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78 height += sashForm.getBorderWidth()*2;
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79 if (wHint !is DWT.DEFAULT) width = wHint;
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80 if (hHint !is DWT.DEFAULT) height = hHint;
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81 return new Point(width, height);
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82 }
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83
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84 protected bool flushCache(Control control) {
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85 return true;
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86 }
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87
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88 protected void layout(Composite composite, bool flushCache) {
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89 SashForm sashForm = cast(SashForm)composite;
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90 Rectangle area = sashForm.getClientArea();
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91 if (area.width <= 1 || area.height <= 1) return;
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92
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93 Control[] newControls = sashForm.getControls(true);
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94 if (sashForm.controls.length is 0 && newControls.length is 0) return;
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95 sashForm.controls = newControls;
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96
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97 Control[] controls = sashForm.controls;
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98
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99 if (sashForm.maxControl !is null && !sashForm.maxControl.isDisposed()) {
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100 for (int i= 0; i < controls.length; i++){
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101 if (controls[i] !is sashForm.maxControl) {
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102 controls[i].setBounds(-200, -200, 0, 0);
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103 } else {
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104 controls[i].setBounds(area);
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105 }
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106 }
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107 return;
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108 }
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109
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110 // keep just the right number of sashes
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111 if (sashForm.sashes.length < controls.length - 1) {
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112 Sash[] newSashes = new Sash[controls.length - 1];
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113 System.arraycopy(sashForm.sashes, 0, newSashes, 0, sashForm.sashes.length);
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114 for (int i = sashForm.sashes.length; i < newSashes.length; i++) {
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115 newSashes[i] = new Sash(sashForm, sashForm.sashStyle);
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116 newSashes[i].setBackground(sashForm.background);
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117 newSashes[i].setForeground(sashForm.foreground);
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118 newSashes[i].addListener(DWT.Selection, sashForm.sashListener);
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119 }
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120 sashForm.sashes = newSashes;
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121 }
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122 if (sashForm.sashes.length > controls.length - 1) {
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123 if (controls.length is 0) {
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124 for (int i = 0; i < sashForm.sashes.length; i++) {
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125 sashForm.sashes[i].dispose();
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126 }
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127 sashForm.sashes = new Sash[0];
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128 } else {
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129 Sash[] newSashes = new Sash[controls.length - 1];
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130 System.arraycopy(sashForm.sashes, 0, newSashes, 0, newSashes.length);
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131 for (int i = controls.length - 1; i < sashForm.sashes.length; i++) {
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132 sashForm.sashes[i].dispose();
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133 }
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134 sashForm.sashes = newSashes;
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135 }
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136 }
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137 if (controls.length is 0) return;
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138 Sash[] sashes = sashForm.sashes;
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139 // get the ratios
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140 long[] ratios = new long[controls.length];
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141 long total = 0;
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142 for (int i = 0; i < controls.length; i++) {
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143 Object data = controls[i].getLayoutData();
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144 if (data !is null && data instanceof SashFormData) {
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e831403a80a9 Add 'cast' to casts
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parents: 0
diff changeset
145 ratios[i] = (cast(SashFormData)data).weight;
0
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146 } else {
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147 data = new SashFormData();
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148 controls[i].setLayoutData(data);
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149 (cast(SashFormData)data).weight = ratios[i] = ((200 << 16) + 999) / 1000;
0
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150
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151 }
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152 total += ratios[i];
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153 }
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154
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155 int sashwidth = sashes.length > 0 ? sashForm.SASH_WIDTH + sashes [0].getBorderWidth() * 2 : sashForm.SASH_WIDTH;
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156 if (sashForm.getOrientation() is DWT.HORIZONTAL) {
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157 int width = cast(int)(ratios[0] * (area.width - sashes.length * sashwidth) / total);
0
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158 int x = area.x;
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159 controls[0].setBounds(x, area.y, width, area.height);
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160 x += width;
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161 for (int i = 1; i < controls.length - 1; i++) {
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162 sashes[i - 1].setBounds(x, area.y, sashwidth, area.height);
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163 x += sashwidth;
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parents: 0
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164 width = cast(int)(ratios[i] * (area.width - sashes.length * sashwidth) / total);
0
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165 controls[i].setBounds(x, area.y, width, area.height);
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166 x += width;
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167 }
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168 if (controls.length > 1) {
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169 sashes[sashes.length - 1].setBounds(x, area.y, sashwidth, area.height);
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170 x += sashwidth;
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171 width = area.width - x;
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172 controls[controls.length - 1].setBounds(x, area.y, width, area.height);
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173 }
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174 } else {
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e831403a80a9 Add 'cast' to casts
Frank Benoit <benoit@tionex.de>
parents: 0
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175 int height = cast(int)(ratios[0] * (area.height - sashes.length * sashwidth) / total);
0
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176 int y = area.y;
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177 controls[0].setBounds(area.x, y, area.width, height);
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178 y += height;
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179 for (int i = 1; i < controls.length - 1; i++) {
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180 sashes[i - 1].setBounds(area.x, y, area.width, sashwidth);
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181 y += sashwidth;
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e831403a80a9 Add 'cast' to casts
Frank Benoit <benoit@tionex.de>
parents: 0
diff changeset
182 height = cast(int)(ratios[i] * (area.height - sashes.length * sashwidth) / total);
0
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parents:
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183 controls[i].setBounds(area.x, y, area.width, height);
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184 y += height;
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185 }
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186 if (controls.length > 1) {
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parents:
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187 sashes[sashes.length - 1].setBounds(area.x, y, area.width, sashwidth);
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188 y += sashwidth;
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189 height = area.height - y;
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190 controls[controls.length - 1].setBounds(area.x, y, area.width, height);
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parents:
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191 }
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parents:
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192
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parents:
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193 }
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parents:
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194 }
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195 }