| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.ui.internal.forms.widgets; |
| |
| import java.util.Hashtable; |
| |
| import org.eclipse.swt.graphics.FontMetrics; |
| import org.eclipse.swt.graphics.GC; |
| import org.eclipse.swt.graphics.Rectangle; |
| |
| /** |
| * This segment serves as break within a paragraph. It has no data - |
| * just starts a new line and resets the locator. |
| */ |
| |
| public class BreakSegment extends ParagraphSegment { |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.forms.internal.widgets.ParagraphSegment#advanceLocator(org.eclipse.swt.graphics.GC, int, org.eclipse.ui.forms.internal.widgets.Locator, java.util.Hashtable) |
| */ |
| public boolean advanceLocator(GC gc, int wHint, Locator locator, |
| Hashtable objectTable, boolean computeHeightOnly) { |
| if (locator.rowHeight==0) { |
| FontMetrics fm = gc.getFontMetrics(); |
| locator.rowHeight = fm.getHeight(); |
| } |
| if (computeHeightOnly) locator.collectHeights(); |
| locator.x = locator.indent; |
| locator.y += locator.rowHeight; |
| locator.rowHeight = 0; |
| locator.leading = 0; |
| return true; |
| } |
| |
| public void paint(GC gc, boolean hover, Hashtable resourceTable, boolean selected, SelectionData selData, Rectangle repaintRegion) { |
| //nothing to paint |
| } |
| public boolean contains(int x, int y) { |
| return false; |
| } |
| public boolean intersects(Rectangle rect) { |
| return false; |
| } |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.internal.forms.widgets.ParagraphSegment#layout(org.eclipse.swt.graphics.GC, int, org.eclipse.ui.internal.forms.widgets.Locator, java.util.Hashtable, boolean, org.eclipse.ui.internal.forms.widgets.SelectionData) |
| */ |
| public void layout(GC gc, int width, Locator locator, Hashtable ResourceTable, |
| boolean selected) { |
| locator.resetCaret(); |
| if (locator.rowHeight==0) { |
| FontMetrics fm = gc.getFontMetrics(); |
| locator.rowHeight = fm.getHeight(); |
| } |
| locator.y += locator.rowHeight; |
| locator.rowHeight = 0; |
| locator.rowCounter++; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.internal.forms.widgets.ParagraphSegment#computeSelection(org.eclipse.swt.graphics.GC, java.util.Hashtable, boolean, org.eclipse.ui.internal.forms.widgets.SelectionData) |
| */ |
| public void computeSelection(GC gc, Hashtable resourceTable, SelectionData selData) { |
| selData.markNewLine(); |
| } |
| } |