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1 files changed, 175 insertions, 0 deletions

diff --git a/libjava/classpath/javax/swing/text/IconView.java b/libjava/classpath/javax/swing/text/IconView.java
new file mode 100644
index 000000000..7bb7635b4
--- /dev/null
+++ b/libjava/classpath/javax/swing/text/IconView.java
@@ -0,0 +1,175 @@
+/* IconView.java -- A view to render icons
+   Copyright (C) 2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package javax.swing.text;
+
+import java.awt.Graphics;
+import java.awt.Rectangle;
+import java.awt.Shape;
+
+import javax.swing.Icon;
+import javax.swing.JTextPane;
+
+/**
+ * A View that can render an icon. This view is created by the
+ * {@link StyledEditorKit}'s view factory for all elements that have name
+ * {@link StyleConstants#IconElementName}. This is usually created by
+ * inserting an icon into <code>JTextPane</code> using
+ * {@link JTextPane#insertIcon(Icon)}
+ *
+ * The icon is determined using the attribute
+ * {@link StyleConstants#IconAttribute}, which's value must be an {@link Icon}.
+ *
+ * @author Roman Kennke (kennke@aicas.com)
+ */
+public class IconView
+  extends View
+{
+
+  /**
+   * Creates a new <code>IconView</code> for the given <code>Element</code>.
+   *
+   * @param element the element that is rendered by this IconView
+   */
+  public IconView(Element element)
+  {
+    super(element);
+  }
+
+  /**
+   * Renders the <code>Element</code> that is associated with this
+   * <code>View</code>.
+   *
+   * @param g the <code>Graphics</code> context to render to
+   * @param a the allocated region for the <code>Element</code>
+   */
+  public void paint(Graphics g, Shape a)
+  {
+    Icon icon = StyleConstants.getIcon(getElement().getAttributes());
+    Rectangle b = a.getBounds();
+    icon.paintIcon(getContainer(), g, b.x, b.y);
+  }
+
+  /**
+   * Returns the preferred span of the content managed by this
+   * <code>View</code> along the specified <code>axis</code>.
+   *
+   * @param axis the axis
+   *
+   * @return the preferred span of this <code>View</code>.
+   */
+  public float getPreferredSpan(int axis)
+  {
+    Icon icon = StyleConstants.getIcon(getElement().getAttributes());
+    float span;
+    if (axis == X_AXIS)
+      span = icon.getIconWidth();
+    else if (axis == Y_AXIS)
+      span = icon.getIconHeight();
+    else
+      throw new IllegalArgumentException();
+    return span;
+  }
+
+  /**
+   * Maps a position in the document into the coordinate space of the View.
+   * The output rectangle usually reflects the font height but has a width
+   * of zero.
+   *
+   * @param pos the position of the character in the model
+   * @param a the area that is occupied by the view
+   * @param b either {@link Position.Bias#Forward} or
+   *        {@link Position.Bias#Backward} depending on the preferred
+   *        direction bias. If <code>null</code> this defaults to
+   *        <code>Position.Bias.Forward</code>
+   *
+   * @return a rectangle that gives the location of the document position
+   *         inside the view coordinate space
+   *
+   * @throws BadLocationException if <code>pos</code> is invalid
+   * @throws IllegalArgumentException if b is not one of the above listed
+   *         valid values
+   */
+  public Shape modelToView(int pos, Shape a, Position.Bias b)
+    throws BadLocationException
+  {
+    Element el = getElement();
+    Rectangle r = a.getBounds();
+    Icon icon = StyleConstants.getIcon(el.getAttributes());
+    return new Rectangle(r.x, r.y, icon.getIconWidth(), icon.getIconHeight());
+  }
+
+  /**
+   * Maps coordinates from the <code>View</code>'s space into a position
+   * in the document model.
+   *
+   * @param x the x coordinate in the view space
+   * @param y the y coordinate in the view space
+   * @param a the allocation of this <code>View</code>
+   * @param b the bias to use
+   *
+   * @return the position in the document that corresponds to the screen
+   *         coordinates <code>x, y</code>
+   */
+  public int viewToModel(float x, float y, Shape a, Position.Bias[] b)
+  {
+    // The element should only have one character position and it is clear
+    // that this position is the position that best matches the given screen
+    // coordinates, simply because this view has only this one position.
+    Element el = getElement();
+    return el.getStartOffset();
+  }
+
+  /**
+   * Returns the alignment for this view. This will be 1.0 for the Y_AXIS,
+   * and the super behaviour for the X_AXIS.
+   *
+   * @param axis the axis for which to calculate the alignment
+   *
+   * @return the alignment
+   */
+  public float getAlignment(int axis)
+  {
+    float align;
+    if (axis == Y_AXIS)
+      align = 1.0F;
+    else
+      align = super.getAlignment(axis);
+    return align;
+  }
+}