| /* |
| * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package javax.swing.text.html; |
| |
| import java.awt.*; |
| import java.text.BreakIterator; |
| import javax.swing.event.DocumentEvent; |
| import javax.swing.text.*; |
| |
| /** |
| * Displays the <dfn>inline element</dfn> styles |
| * based upon css attributes. |
| * |
| * @author Timothy Prinzing |
| */ |
| public class InlineView extends LabelView { |
| |
| /** |
| * Constructs a new view wrapped on an element. |
| * |
| * @param elem the element |
| */ |
| public InlineView(Element elem) { |
| super(elem); |
| StyleSheet sheet = getStyleSheet(); |
| attr = sheet.getViewAttributes(this); |
| } |
| |
| /** |
| * Gives notification that something was inserted into |
| * the document in a location that this view is responsible for. |
| * If either parameter is <code>null</code>, behavior of this method is |
| * implementation dependent. |
| * |
| * @param e the change information from the associated document |
| * @param a the current allocation of the view |
| * @param f the factory to use to rebuild if the view has children |
| * @since 1.5 |
| * @see View#insertUpdate |
| */ |
| public void insertUpdate(DocumentEvent e, Shape a, ViewFactory f) { |
| super.insertUpdate(e, a, f); |
| } |
| |
| /** |
| * Gives notification that something was removed from the document |
| * in a location that this view is responsible for. |
| * If either parameter is <code>null</code>, behavior of this method is |
| * implementation dependent. |
| * |
| * @param e the change information from the associated document |
| * @param a the current allocation of the view |
| * @param f the factory to use to rebuild if the view has children |
| * @since 1.5 |
| * @see View#removeUpdate |
| */ |
| public void removeUpdate(DocumentEvent e, Shape a, ViewFactory f) { |
| super.removeUpdate(e, a, f); |
| } |
| |
| /** |
| * Gives notification from the document that attributes were changed |
| * in a location that this view is responsible for. |
| * |
| * @param e the change information from the associated document |
| * @param a the current allocation of the view |
| * @param f the factory to use to rebuild if the view has children |
| * @see View#changedUpdate |
| */ |
| public void changedUpdate(DocumentEvent e, Shape a, ViewFactory f) { |
| super.changedUpdate(e, a, f); |
| StyleSheet sheet = getStyleSheet(); |
| attr = sheet.getViewAttributes(this); |
| preferenceChanged(null, true, true); |
| } |
| |
| /** |
| * Fetches the attributes to use when rendering. This is |
| * implemented to multiplex the attributes specified in the |
| * model with a StyleSheet. |
| */ |
| public AttributeSet getAttributes() { |
| return attr; |
| } |
| |
| /** |
| * Determines how attractive a break opportunity in |
| * this view is. This can be used for determining which |
| * view is the most attractive to call <code>breakView</code> |
| * on in the process of formatting. A view that represents |
| * text that has whitespace in it might be more attractive |
| * than a view that has no whitespace, for example. The |
| * higher the weight, the more attractive the break. A |
| * value equal to or lower than <code>BadBreakWeight</code> |
| * should not be considered for a break. A value greater |
| * than or equal to <code>ForcedBreakWeight</code> should |
| * be broken. |
| * <p> |
| * This is implemented to provide the default behavior |
| * of returning <code>BadBreakWeight</code> unless the length |
| * is greater than the length of the view in which case the |
| * entire view represents the fragment. Unless a view has |
| * been written to support breaking behavior, it is not |
| * attractive to try and break the view. An example of |
| * a view that does support breaking is <code>LabelView</code>. |
| * An example of a view that uses break weight is |
| * <code>ParagraphView</code>. |
| * |
| * @param axis may be either View.X_AXIS or View.Y_AXIS |
| * @param pos the potential location of the start of the |
| * broken view >= 0. This may be useful for calculating tab |
| * positions. |
| * @param len specifies the relative length from <em>pos</em> |
| * where a potential break is desired >= 0. |
| * @return the weight, which should be a value between |
| * ForcedBreakWeight and BadBreakWeight. |
| * @see LabelView |
| * @see ParagraphView |
| * @see javax.swing.text.View#BadBreakWeight |
| * @see javax.swing.text.View#GoodBreakWeight |
| * @see javax.swing.text.View#ExcellentBreakWeight |
| * @see javax.swing.text.View#ForcedBreakWeight |
| */ |
| public int getBreakWeight(int axis, float pos, float len) { |
| if (nowrap) { |
| return BadBreakWeight; |
| } |
| return super.getBreakWeight(axis, pos, len); |
| } |
| |
| /** |
| * Tries to break this view on the given axis. Refer to |
| * {@link javax.swing.text.View#breakView} for a complete |
| * description of this method. |
| * <p>Behavior of this method is unspecified in case <code>axis</code> |
| * is neither <code>View.X_AXIS</code> nor <code>View.Y_AXIS</code>, and |
| * in case <code>offset</code>, <code>pos</code>, or <code>len</code> |
| * is null. |
| * |
| * @param axis may be either <code>View.X_AXIS</code> or |
| * <code>View.Y_AXIS</code> |
| * @param offset the location in the document model |
| * that a broken fragment would occupy >= 0. This |
| * would be the starting offset of the fragment |
| * returned |
| * @param pos the position along the axis that the |
| * broken view would occupy >= 0. This may be useful for |
| * things like tab calculations |
| * @param len specifies the distance along the axis |
| * where a potential break is desired >= 0 |
| * @return the fragment of the view that represents the |
| * given span. |
| * @since 1.5 |
| * @see javax.swing.text.View#breakView |
| */ |
| public View breakView(int axis, int offset, float pos, float len) { |
| return super.breakView(axis, offset, pos, len); |
| } |
| |
| |
| /** |
| * Set the cached properties from the attributes. |
| */ |
| protected void setPropertiesFromAttributes() { |
| super.setPropertiesFromAttributes(); |
| AttributeSet a = getAttributes(); |
| Object decor = a.getAttribute(CSS.Attribute.TEXT_DECORATION); |
| boolean u = (decor != null) ? |
| (decor.toString().indexOf("underline") >= 0) : false; |
| setUnderline(u); |
| boolean s = (decor != null) ? |
| (decor.toString().indexOf("line-through") >= 0) : false; |
| setStrikeThrough(s); |
| Object vAlign = a.getAttribute(CSS.Attribute.VERTICAL_ALIGN); |
| s = (vAlign != null) ? (vAlign.toString().indexOf("sup") >= 0) : false; |
| setSuperscript(s); |
| s = (vAlign != null) ? (vAlign.toString().indexOf("sub") >= 0) : false; |
| setSubscript(s); |
| |
| Object whitespace = a.getAttribute(CSS.Attribute.WHITE_SPACE); |
| if ((whitespace != null) && whitespace.equals("nowrap")) { |
| nowrap = true; |
| } else { |
| nowrap = false; |
| } |
| |
| HTMLDocument doc = (HTMLDocument)getDocument(); |
| // fetches background color from stylesheet if specified |
| Color bg = doc.getBackground(a); |
| if (bg != null) { |
| setBackground(bg); |
| } |
| } |
| |
| /** |
| * Convenient method to get the StyleSheet. |
| * |
| * @return the StyleSheet |
| */ |
| protected StyleSheet getStyleSheet() { |
| HTMLDocument doc = (HTMLDocument) getDocument(); |
| return doc.getStyleSheet(); |
| } |
| |
| private boolean nowrap; |
| private AttributeSet attr; |
| } |