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annotate org.eclipse.jface/src/org/eclipse/jface/fieldassist/ComboContentAdapter.d @ 12:bc29606a740c

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Added dwt-addons in original directory structure of eclipse.org
author Frank Benoit <benoit@tionex.de>
date Sat, 14 Mar 2009 18:23:29 +0100
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children dccb717aa902
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1 /*******************************************************************************
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2 * Copyright (c) 2005, 2008 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.jface.fieldassist.ComboContentAdapter;
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14
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15 import org.eclipse.swt.SWT;
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16 import org.eclipse.jface.fieldassist.IControlContentAdapter;
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17 import org.eclipse.jface.fieldassist.IControlContentAdapter2;
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18
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19 import org.eclipse.swt.graphics.GC;
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20 import org.eclipse.swt.graphics.Point;
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21 import org.eclipse.swt.graphics.Rectangle;
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22 import org.eclipse.swt.widgets.Combo;
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23 import org.eclipse.swt.widgets.Control;
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24
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25 import java.lang.all;
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26 import java.util.Set;
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27 import tango.text.Text;
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28 alias tango.text.Text.Text!(char) StringBuffer;
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29 /**
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30 * An {@link IControlContentAdapter} for SWT Combo controls. This is a
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31 * convenience class for easily creating a {@link ContentProposalAdapter} for
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32 * combo fields.
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33 *
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34 * @since 3.2
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35 */
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36 public class ComboContentAdapter : IControlContentAdapter,
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37 IControlContentAdapter2 {
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38
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39 /*
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40 * Set to <code>true</code> if we should compute the text
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41 * vertical bounds rather than just use the field size.
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42 * Workaround for https://bugs.eclipse.org/bugs/show_bug.cgi?id=164748
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43 * The corresponding SWT bug is
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44 * https://bugs.eclipse.org/bugs/show_bug.cgi?id=44072
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45 */
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46 private static final bool COMPUTE_TEXT_USING_CLIENTAREA = !"carbon".equals(SWT.getPlatform()); //$NON-NLS-1$
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47
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48
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49 /*
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50 * (non-Javadoc)
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51 *
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52 * @see org.eclipse.jface.dialogs.taskassistance.IControlContentAdapter#getControlContents(org.eclipse.swt.widgets.Control)
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53 */
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54 public String getControlContents(Control control) {
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55 return (cast(Combo) control).getText();
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56 }
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57
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58 /*
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59 * (non-Javadoc)
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60 *
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61 * @see org.eclipse.jface.fieldassist.IControlContentAdapter#setControlContents(org.eclipse.swt.widgets.Control,
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62 * java.lang.String, int)
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63 */
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64 public void setControlContents(Control control, String text,
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65 int cursorPosition) {
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66 (cast(Combo) control).setText(text);
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67 (cast(Combo) control)
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68 .setSelection(new Point(cursorPosition, cursorPosition));
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69 }
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70
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71 /*
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72 * (non-Javadoc)
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73 *
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74 * @see org.eclipse.jface.fieldassist.IControlContentAdapter#insertControlContents(org.eclipse.swt.widgets.Control,
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75 * java.lang.String, int)
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76 */
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77 public void insertControlContents(Control control, String text,
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78 int cursorPosition) {
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79 Combo combo = cast(Combo) control;
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80 String contents = combo.getText();
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81 Point selection = combo.getSelection();
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82 StringBuffer sb = new StringBuffer();
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83 sb.append(contents.substring(0, selection.x));
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84 sb.append(text);
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85 if (selection.y < contents.length) {
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86 sb.append(contents.substring(selection.y, contents.length));
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87 }
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88 combo.setText(sb.toString());
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89 selection.x = selection.x + cursorPosition;
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90 selection.y = selection.x;
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91 combo.setSelection(selection);
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92 }
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93
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94 /*
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95 * (non-Javadoc)
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96 *
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97 * @see org.eclipse.jface.fieldassist.IControlContentAdapter#getCursorPosition(org.eclipse.swt.widgets.Control)
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98 */
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99 public int getCursorPosition(Control control) {
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100 return (cast(Combo) control).getSelection().x;
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101 }
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102
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103 /*
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104 * (non-Javadoc)
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105 *
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106 * @see org.eclipse.jface.fieldassist.IControlContentAdapter#getInsertionBounds(org.eclipse.swt.widgets.Control)
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107 */
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108 public Rectangle getInsertionBounds(Control control) {
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109 // This doesn't take horizontal scrolling into affect.
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110 // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=204599
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111 Combo combo = cast(Combo) control;
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112 int position = combo.getSelection().y;
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113 String contents = combo.getText();
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114 GC gc = new GC(combo);
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115 gc.setFont(combo.getFont());
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116 Point extent = gc.textExtent(contents.substring(0, Math.min(position,
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117 contents.length)));
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118 gc.dispose();
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119 if (COMPUTE_TEXT_USING_CLIENTAREA) {
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120 return new Rectangle(combo.getClientArea().x + extent.x, combo
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121 .getClientArea().y, 1, combo.getClientArea().height);
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122 }
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123 return new Rectangle(extent.x, 0, 1, combo.getSize().y);
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124 }
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125
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126 /*
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127 * (non-Javadoc)
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128 *
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129 * @see org.eclipse.jface.fieldassist.IControlContentAdapter#setCursorPosition(org.eclipse.swt.widgets.Control,
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130 * int)
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131 */
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132 public void setCursorPosition(Control control, int index) {
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133 (cast(Combo) control).setSelection(new Point(index, index));
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134 }
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135
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136 /**
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137 * @see org.eclipse.jface.fieldassist.IControlContentAdapter2#getSelection(org.eclipse.swt.widgets.Control)
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138 *
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139 * @since 3.4
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140 */
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141 public Point getSelection(Control control) {
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142 return (cast(Combo) control).getSelection();
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143 }
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144
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145 /**
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146 * @see org.eclipse.jface.fieldassist.IControlContentAdapter2#setSelection(org.eclipse.swt.widgets.Control,
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147 * org.eclipse.swt.graphics.Point)
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148 *
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149 * @since 3.4
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150 */
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151 public void setSelection(Control control, Point range) {
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152 (cast(Combo) control).setSelection(range);
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153 }
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154
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155 }