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annotate dwt/custom/ViewFormLayout.d @ 0:380af2bdd8e5

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Upload of whole dwt tree
author Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
date Sat, 09 Aug 2008 17:00:02 +0200
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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 ViewForm
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19 *
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20 * @see ViewForm
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21 */
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22 class ViewFormLayout : Layout {
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23
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24 protected Point computeSize(Composite composite, int wHint, int hHint, bool flushCache) {
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25 ViewForm form = (ViewForm)composite;
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26 Control left = form.topLeft;
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27 Control center = form.topCenter;
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28 Control right = form.topRight;
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29 Control content = form.content;
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30
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31 Point leftSize = new Point(0, 0);
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32 if (left !is null) {
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33 leftSize = computeChildSize(left, DWT.DEFAULT, DWT.DEFAULT, flushCache);
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34 }
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35 Point centerSize = new Point(0, 0);
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36 if (center !is null) {
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37 centerSize = computeChildSize(center, DWT.DEFAULT, DWT.DEFAULT, flushCache);
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38 }
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39 Point rightSize = new Point(0, 0);
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40 if (right !is null) {
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41 rightSize = computeChildSize(right, DWT.DEFAULT, DWT.DEFAULT, flushCache);
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42 }
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43 Point size = new Point(0, 0);
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44 // calculate width of title bar
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45 if (form.separateTopCenter ||
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46 (wHint !is DWT.DEFAULT && leftSize.x + centerSize.x + rightSize.x > wHint)) {
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47 size.x = leftSize.x + rightSize.x;
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48 if (leftSize.x > 0 && rightSize.x > 0) size.x += form.horizontalSpacing;
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49 size.x = Math.max(centerSize.x, size.x);
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50 size.y = Math.max(leftSize.y, rightSize.y);
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51 if (center !is null){
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52 size.y += centerSize.y;
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53 if (left !is null ||right !is null)size.y += form.verticalSpacing;
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54 }
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55 } else {
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56 size.x = leftSize.x + centerSize.x + rightSize.x;
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57 int count = -1;
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58 if (leftSize.x > 0) count++;
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59 if (centerSize.x > 0) count++;
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60 if (rightSize.x > 0) count++;
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61 if (count > 0) size.x += count * form.horizontalSpacing;
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62 size.y = Math.max(leftSize.y, Math.max(centerSize.y, rightSize.y));
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63 }
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64
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65 if (content !is null) {
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66 if (left !is null || right !is null || center !is null) size.y += 1; // allow space for a vertical separator
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67 Point contentSize = new Point(0, 0);
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68 contentSize = computeChildSize(content, DWT.DEFAULT, DWT.DEFAULT, flushCache);
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69 size.x = Math.max (size.x, contentSize.x);
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70 size.y += contentSize.y;
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71 if (size.y > contentSize.y) size.y += form.verticalSpacing;
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72 }
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73
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74 size.x += 2*form.marginWidth;
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75 size.y += 2*form.marginHeight;
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76
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77 if (wHint !is DWT.DEFAULT) size.x = wHint;
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78 if (hHint !is DWT.DEFAULT) size.y = hHint;
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79
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80 return size;
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81 }
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82
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83 Point computeChildSize(Control control, int wHint, int hHint, bool flushCache) {
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84 Object data = control.getLayoutData();
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85 if (data is null || !(data instanceof CLayoutData)) {
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86 data = new CLayoutData();
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87 control.setLayoutData(data);
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88 }
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89 return ((CLayoutData)data).computeSize(control, wHint, hHint, flushCache);
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90 }
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91
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92 int computeTrim(Control c) {
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93 if (c instanceof Scrollable) {
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94 Rectangle rect = ((Scrollable) c).computeTrim (0, 0, 0, 0);
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95 return rect.width;
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96 }
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97 return c.getBorderWidth () * 2;
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98 }
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99
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100 protected bool flushCache(Control control) {
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101 Object data = control.getLayoutData();
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102 if (data !is null && data instanceof CLayoutData) ((CLayoutData)data).flushCache();
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103 return true;
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104 }
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105
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106 protected void layout(Composite composite, bool flushCache) {
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107 ViewForm form = (ViewForm)composite;
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108 Control left = form.topLeft;
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109 Control center = form.topCenter;
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110 Control right = form.topRight;
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111 Control content = form.content;
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112
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113 Rectangle rect = composite.getClientArea();
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114
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115 Point leftSize = new Point(0, 0);
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116 if (left !is null && !left.isDisposed()) {
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117 leftSize = computeChildSize(left, DWT.DEFAULT, DWT.DEFAULT, flushCache);
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118 }
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119 Point centerSize = new Point(0, 0);
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120 if (center !is null && !center.isDisposed()) {
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121 centerSize = computeChildSize(center, DWT.DEFAULT, DWT.DEFAULT, flushCache);
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122 }
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123 Point rightSize = new Point(0, 0);
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124 if (right !is null && !right.isDisposed()) {
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125 rightSize = computeChildSize(right, DWT.DEFAULT, DWT.DEFAULT, flushCache);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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126 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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127
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
128 int minTopWidth = leftSize.x + centerSize.x + rightSize.x + 2*form.marginWidth + 2*form.highlight;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
129 int count = -1;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
130 if (leftSize.x > 0) count++;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
131 if (centerSize.x > 0) count++;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
132 if (rightSize.x > 0) count++;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
133 if (count > 0) minTopWidth += count * form.horizontalSpacing;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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134
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
135 int x = rect.x + rect.width - form.marginWidth - form.highlight;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
136 int y = rect.y + form.marginHeight + form.highlight;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
137
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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138 bool top = false;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
139 if (form.separateTopCenter || minTopWidth > rect.width) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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140 int topHeight = Math.max(rightSize.y, leftSize.y);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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141 if (right !is null && !right.isDisposed()) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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142 top = true;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
143 x -= rightSize.x;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
144 right.setBounds(x, y, rightSize.x, topHeight);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
145 x -= form.horizontalSpacing;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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146 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
147 if (left !is null && !left.isDisposed()) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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148 top = true;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
149 int trim = computeTrim(left);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
150 int leftW = x - rect.x - form.marginWidth - form.highlight - trim;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
151 leftSize = computeChildSize(left, leftW, DWT.DEFAULT, false);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
152 left.setBounds(rect.x + form.marginWidth + form.highlight, y, leftSize.x, topHeight);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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153 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
154 if (top) y += topHeight + form.verticalSpacing;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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155 if (center !is null && !center.isDisposed()) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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156 top = true;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
157 int trim = computeTrim(center);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
158 int w = rect.width - 2*form.marginWidth - 2*form.highlight - trim;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
159 centerSize = computeChildSize(center, w, DWT.DEFAULT, false);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
160 center.setBounds(rect.x + rect.width - form.marginWidth - form.highlight - centerSize.x, y, centerSize.x, centerSize.y);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
161 y += centerSize.y + form.verticalSpacing;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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162 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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163 } else {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
164 int topHeight = Math.max(rightSize.y, Math.max(centerSize.y, leftSize.y));
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
165 if (right !is null && !right.isDisposed()) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
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166 top = true;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
167 x -= rightSize.x;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
168 right.setBounds(x, y, rightSize.x, topHeight);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
169 x -= form.horizontalSpacing;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
170 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
171 if (center !is null && !center.isDisposed()) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
172 top = true;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
173 x -= centerSize.x;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
174 center.setBounds(x, y, centerSize.x, topHeight);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
175 x -= form.horizontalSpacing;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
176 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
177 if (left !is null && !left.isDisposed()) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
178 top = true;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
179 Rectangle trim = left instanceof Composite ? ((Composite)left).computeTrim(0, 0, 0, 0) : new Rectangle(0, 0, 0, 0);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
180 int w = x - rect.x - form.marginWidth - form.highlight - trim.width;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
181 int h = topHeight - trim.height;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
182 leftSize = computeChildSize(left, w, h, false);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
183 left.setBounds(rect.x + form.marginWidth + form.highlight, y, leftSize.x, topHeight);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
184 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
185 if (top)y += topHeight + form.verticalSpacing;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
186 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
187 int oldSeperator = form.separator;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
188 form.separator = -1;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
189 if (content !is null && !content.isDisposed()) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
190 if (left !is null || right!= null || center !is null){
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
191 form.separator = y;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
192 y++;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
193 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
194 content.setBounds(rect.x + form.marginWidth + form.highlight, y, rect.width - 2 * form.marginWidth - 2*form.highlight, rect.y + rect.height - y - form.marginHeight - form.highlight);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
195 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
196 if (oldSeperator !is -1 && form.separator !is -1) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
197 int t = Math.min(form.separator, oldSeperator);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
198 int b = Math.max(form.separator, oldSeperator);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
199 form.redraw(form.borderLeft, t, form.getSize().x - form.borderLeft - form.borderRight, b - t, false);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
200 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
201 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
202 }