| /******************************************************************************* |
| * Copyright (c) 2005, 2008 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jface.fieldassist; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.graphics.GC; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.graphics.Rectangle; |
| import org.eclipse.swt.widgets.Combo; |
| import org.eclipse.swt.widgets.Control; |
| |
| /** |
| * An {@link IControlContentAdapter} for SWT Combo controls. This is a |
| * convenience class for easily creating a {@link ContentProposalAdapter} for |
| * combo fields. |
| * |
| * @since 3.2 |
| */ |
| public class ComboContentAdapter implements IControlContentAdapter, |
| IControlContentAdapter2 { |
| |
| /* |
| * Set to <code>true</code> if we should compute the text |
| * vertical bounds rather than just use the field size. |
| * Workaround for https://bugs.eclipse.org/bugs/show_bug.cgi?id=164748 |
| * The corresponding SWT bug is |
| * https://bugs.eclipse.org/bugs/show_bug.cgi?id=44072 |
| */ |
| private static final boolean COMPUTE_TEXT_USING_CLIENTAREA = !"carbon".equals(SWT.getPlatform()); //$NON-NLS-1$ |
| |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.dialogs.taskassistance.IControlContentAdapter#getControlContents(org.eclipse.swt.widgets.Control) |
| */ |
| public String getControlContents(Control control) { |
| return ((Combo) control).getText(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.fieldassist.IControlContentAdapter#setControlContents(org.eclipse.swt.widgets.Control, |
| * java.lang.String, int) |
| */ |
| public void setControlContents(Control control, String text, |
| int cursorPosition) { |
| ((Combo) control).setText(text); |
| ((Combo) control) |
| .setSelection(new Point(cursorPosition, cursorPosition)); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.fieldassist.IControlContentAdapter#insertControlContents(org.eclipse.swt.widgets.Control, |
| * java.lang.String, int) |
| */ |
| public void insertControlContents(Control control, String text, |
| int cursorPosition) { |
| Combo combo = (Combo) control; |
| String contents = combo.getText(); |
| Point selection = combo.getSelection(); |
| StringBuffer sb = new StringBuffer(); |
| sb.append(contents.substring(0, selection.x)); |
| sb.append(text); |
| if (selection.y < contents.length()) { |
| sb.append(contents.substring(selection.y, contents.length())); |
| } |
| combo.setText(sb.toString()); |
| selection.x = selection.x + cursorPosition; |
| selection.y = selection.x; |
| combo.setSelection(selection); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.fieldassist.IControlContentAdapter#getCursorPosition(org.eclipse.swt.widgets.Control) |
| */ |
| public int getCursorPosition(Control control) { |
| return ((Combo) control).getSelection().x; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.fieldassist.IControlContentAdapter#getInsertionBounds(org.eclipse.swt.widgets.Control) |
| */ |
| public Rectangle getInsertionBounds(Control control) { |
| // This doesn't take horizontal scrolling into affect. |
| // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=204599 |
| Combo combo = (Combo) control; |
| int position = combo.getSelection().y; |
| String contents = combo.getText(); |
| GC gc = new GC(combo); |
| gc.setFont(combo.getFont()); |
| Point extent = gc.textExtent(contents.substring(0, Math.min(position, |
| contents.length()))); |
| gc.dispose(); |
| if (COMPUTE_TEXT_USING_CLIENTAREA) { |
| return new Rectangle(combo.getClientArea().x + extent.x, combo |
| .getClientArea().y, 1, combo.getClientArea().height); |
| } |
| return new Rectangle(extent.x, 0, 1, combo.getSize().y); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.fieldassist.IControlContentAdapter#setCursorPosition(org.eclipse.swt.widgets.Control, |
| * int) |
| */ |
| public void setCursorPosition(Control control, int index) { |
| ((Combo) control).setSelection(new Point(index, index)); |
| } |
| |
| /** |
| * @see org.eclipse.jface.fieldassist.IControlContentAdapter2#getSelection(org.eclipse.swt.widgets.Control) |
| * |
| * @since 3.4 |
| */ |
| public Point getSelection(Control control) { |
| return ((Combo) control).getSelection(); |
| } |
| |
| /** |
| * @see org.eclipse.jface.fieldassist.IControlContentAdapter2#setSelection(org.eclipse.swt.widgets.Control, |
| * org.eclipse.swt.graphics.Point) |
| * |
| * @since 3.4 |
| */ |
| public void setSelection(Control control, Point range) { |
| ((Combo) control).setSelection(range); |
| } |
| |
| } |