| /******************************************************************************* |
| * 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.draw2d.text; |
| |
| /** |
| * A Geometric object for representing a TextFragment region on a line of Text. |
| */ |
| public class TextFragmentBox |
| extends ContentBox |
| { |
| |
| /** |
| * The fragment's length in characters. |
| */ |
| public int length; |
| |
| /** |
| * The character offset at which this fragment begins. |
| */ |
| public int offset; |
| |
| private TextFlow textflow; |
| private boolean truncated; |
| |
| /** |
| * Creates a new TextFragmentBox for the given text flow. |
| * @param textflow the text flow |
| */ |
| public TextFragmentBox(TextFlow textflow) { |
| this.textflow = textflow; |
| } |
| |
| /** |
| * @see org.eclipse.draw2d.text.FlowBox#containsPoint(int, int) |
| */ |
| public boolean containsPoint(int x, int y) { |
| return x >= getX() |
| && x < getX() + getWidth() |
| && y >= getBaseline() - getAscentWithBorder() |
| && y <= getBaseline() + getDescentWithBorder(); |
| } |
| |
| /** |
| * Returns the textflow's font's ascent. The ascent is the same for all fragments in a |
| * given TextFlow. |
| * @return the ascent |
| */ |
| public int getAscent() { |
| return textflow.getAscent(); |
| } |
| |
| int getAscentWithBorder() { |
| return textflow.getAscent() + FlowUtilities.getBorderAscent(textflow); |
| } |
| |
| /** |
| * Returns the textflow's font's descent. The descent is the same for all fragments in a |
| * given TextFlow. |
| * @return the descent |
| */ |
| public int getDescent() { |
| return textflow.getDescent(); |
| } |
| |
| int getDescentWithBorder() { |
| return textflow.getDescent() + FlowUtilities.getBorderDescent(textflow); |
| } |
| |
| int getOuterAscent() { |
| return textflow.getAscent() + FlowUtilities.getBorderAscentWithMargin(textflow); |
| } |
| |
| int getOuterDescent() { |
| return textflow.getDescent() + FlowUtilities.getBorderDescentWithMargin(textflow); |
| } |
| |
| final int getTextTop() { |
| return getBaseline() - getAscent(); |
| } |
| |
| /** |
| * Returns <code>true</code> if the bidi level is odd. Right to left fragments should be |
| * queried and rendered with the RLO control character inserted in front. |
| * @return <code>true</code> if right-to-left |
| * @since 3.1 |
| */ |
| public boolean isRightToLeft() { |
| // -1 % 2 == -1 |
| return getBidiLevel() % 2 == 1; |
| } |
| |
| /** |
| * Returns <code>true</code> if the fragment should be rendered as truncated. |
| * @return <code>true</code> if the fragment is truncated |
| * @since 3.1 |
| */ |
| public boolean isTruncated() { |
| return truncated; |
| } |
| |
| /** |
| * Marks the fragment as having been truncated. |
| * @param value <code>true</code> if the fragment is truncated |
| * @since 3.1 |
| */ |
| public void setTruncated(boolean value) { |
| this.truncated = value; |
| } |
| |
| /** |
| * @see java.lang.Object#toString() |
| */ |
| public String toString() { |
| return "[" + offset + ", " + (offset + length) //$NON-NLS-1$ //$NON-NLS-2$ |
| + ") = \"" + textflow.getText().substring(offset, offset + length) + '\"'; //$NON-NLS-1$ |
| } |
| |
| } |