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comparison 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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11:43904fec5dca 12:bc29606a740c
1 /*******************************************************************************
2 * Copyright (c) 2005, 2008 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 * IBM Corporation - initial API and implementation
10 * Port to the D programming language:
11 * Frank Benoit <benoit@tionex.de>
12 *******************************************************************************/
13 module org.eclipse.jface.fieldassist.ComboContentAdapter;
14
15 import org.eclipse.swt.SWT;
16 import org.eclipse.jface.fieldassist.IControlContentAdapter;
17 import org.eclipse.jface.fieldassist.IControlContentAdapter2;
18
19 import org.eclipse.swt.graphics.GC;
20 import org.eclipse.swt.graphics.Point;
21 import org.eclipse.swt.graphics.Rectangle;
22 import org.eclipse.swt.widgets.Combo;
23 import org.eclipse.swt.widgets.Control;
24
25 import java.lang.all;
26 import java.util.Set;
27 import tango.text.Text;
28 alias tango.text.Text.Text!(char) StringBuffer;
29 /**
30 * An {@link IControlContentAdapter} for SWT Combo controls. This is a
31 * convenience class for easily creating a {@link ContentProposalAdapter} for
32 * combo fields.
33 *
34 * @since 3.2
35 */
36 public class ComboContentAdapter : IControlContentAdapter,
37 IControlContentAdapter2 {
38
39 /*
40 * Set to <code>true</code> if we should compute the text
41 * vertical bounds rather than just use the field size.
42 * Workaround for https://bugs.eclipse.org/bugs/show_bug.cgi?id=164748
43 * The corresponding SWT bug is
44 * https://bugs.eclipse.org/bugs/show_bug.cgi?id=44072
45 */
46 private static final bool COMPUTE_TEXT_USING_CLIENTAREA = !"carbon".equals(SWT.getPlatform()); //$NON-NLS-1$
47
48
49 /*
50 * (non-Javadoc)
51 *
52 * @see org.eclipse.jface.dialogs.taskassistance.IControlContentAdapter#getControlContents(org.eclipse.swt.widgets.Control)
53 */
54 public String getControlContents(Control control) {
55 return (cast(Combo) control).getText();
56 }
57
58 /*
59 * (non-Javadoc)
60 *
61 * @see org.eclipse.jface.fieldassist.IControlContentAdapter#setControlContents(org.eclipse.swt.widgets.Control,
62 * java.lang.String, int)
63 */
64 public void setControlContents(Control control, String text,
65 int cursorPosition) {
66 (cast(Combo) control).setText(text);
67 (cast(Combo) control)
68 .setSelection(new Point(cursorPosition, cursorPosition));
69 }
70
71 /*
72 * (non-Javadoc)
73 *
74 * @see org.eclipse.jface.fieldassist.IControlContentAdapter#insertControlContents(org.eclipse.swt.widgets.Control,
75 * java.lang.String, int)
76 */
77 public void insertControlContents(Control control, String text,
78 int cursorPosition) {
79 Combo combo = cast(Combo) control;
80 String contents = combo.getText();
81 Point selection = combo.getSelection();
82 StringBuffer sb = new StringBuffer();
83 sb.append(contents.substring(0, selection.x));
84 sb.append(text);
85 if (selection.y < contents.length) {
86 sb.append(contents.substring(selection.y, contents.length));
87 }
88 combo.setText(sb.toString());
89 selection.x = selection.x + cursorPosition;
90 selection.y = selection.x;
91 combo.setSelection(selection);
92 }
93
94 /*
95 * (non-Javadoc)
96 *
97 * @see org.eclipse.jface.fieldassist.IControlContentAdapter#getCursorPosition(org.eclipse.swt.widgets.Control)
98 */
99 public int getCursorPosition(Control control) {
100 return (cast(Combo) control).getSelection().x;
101 }
102
103 /*
104 * (non-Javadoc)
105 *
106 * @see org.eclipse.jface.fieldassist.IControlContentAdapter#getInsertionBounds(org.eclipse.swt.widgets.Control)
107 */
108 public Rectangle getInsertionBounds(Control control) {
109 // This doesn't take horizontal scrolling into affect.
110 // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=204599
111 Combo combo = cast(Combo) control;
112 int position = combo.getSelection().y;
113 String contents = combo.getText();
114 GC gc = new GC(combo);
115 gc.setFont(combo.getFont());
116 Point extent = gc.textExtent(contents.substring(0, Math.min(position,
117 contents.length)));
118 gc.dispose();
119 if (COMPUTE_TEXT_USING_CLIENTAREA) {
120 return new Rectangle(combo.getClientArea().x + extent.x, combo
121 .getClientArea().y, 1, combo.getClientArea().height);
122 }
123 return new Rectangle(extent.x, 0, 1, combo.getSize().y);
124 }
125
126 /*
127 * (non-Javadoc)
128 *
129 * @see org.eclipse.jface.fieldassist.IControlContentAdapter#setCursorPosition(org.eclipse.swt.widgets.Control,
130 * int)
131 */
132 public void setCursorPosition(Control control, int index) {
133 (cast(Combo) control).setSelection(new Point(index, index));
134 }
135
136 /**
137 * @see org.eclipse.jface.fieldassist.IControlContentAdapter2#getSelection(org.eclipse.swt.widgets.Control)
138 *
139 * @since 3.4
140 */
141 public Point getSelection(Control control) {
142 return (cast(Combo) control).getSelection();
143 }
144
145 /**
146 * @see org.eclipse.jface.fieldassist.IControlContentAdapter2#setSelection(org.eclipse.swt.widgets.Control,
147 * org.eclipse.swt.graphics.Point)
148 *
149 * @since 3.4
150 */
151 public void setSelection(Control control, Point range) {
152 (cast(Combo) control).setSelection(range);
153 }
154
155 }