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+/* SwingTextAreaPeer.java -- A Swing based peer for AWT textareas
+ Copyright (C) 2006, 2007 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 gnu.java.awt.peer.swing;
+
+import java.awt.Container;
+import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.Image;
+import java.awt.Point;
+import java.awt.Rectangle;
+import java.awt.TextArea;
+import java.awt.event.ComponentEvent;
+import java.awt.event.FocusEvent;
+import java.awt.event.HierarchyEvent;
+import java.awt.event.InputMethodEvent;
+import java.awt.event.KeyEvent;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseWheelEvent;
+import java.awt.im.InputMethodRequests;
+import java.awt.peer.TextAreaPeer;
+
+import javax.swing.JComponent;
+import javax.swing.JScrollPane;
+import javax.swing.JTextArea;
+import javax.swing.JViewport;
+import javax.swing.text.BadLocationException;
+
+public class SwingTextAreaPeer
+ extends SwingComponentPeer
+ implements TextAreaPeer
+{
+
+ /**
+ * A spezialized Swing scroller used to hold the textarea.
+ *
+ * @author Roman Kennke (kennke@aicas.com)
+ */
+ private class SwingScrollPane
+ extends JScrollPane
+ implements SwingComponent
+ {
+
+ SwingTextArea textArea;
+
+ SwingScrollPane(SwingTextArea textArea)
+ {
+ super(textArea, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
+ JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
+
+ this.textArea = textArea;
+ }
+
+ /**
+ * Returns this label.
+ *
+ * @return <code>this</code>
+ */
+ public JComponent getJComponent()
+ {
+ return this;
+ }
+
+ /**
+ * Handles mouse events by forwarding it to
+ * <code>processMouseEvent()</code>.
+ *
+ * @param ev the mouse event
+ */
+ public void handleMouseEvent(MouseEvent ev)
+ {
+ JViewport viewPort = getViewport();
+ if(viewPort.contains(ev.getPoint()))
+ {
+ ev.setSource(textArea);
+ textArea.dispatchEvent(ev);
+ }
+ else
+ {
+ ev.setSource(this);
+ this.dispatchEvent(ev);
+ }
+ }
+
+ /**
+ * Force lightweight mouse dispatching.
+ */
+ public boolean isLightweight()
+ {
+ return false;
+ }
+
+ /**
+ * Handles mouse motion events by forwarding it to
+ * <code>processMouseMotionEvent()</code>.
+ *
+ * @param ev the mouse motion event
+ */
+ public void handleMouseMotionEvent(MouseEvent ev)
+ {
+ textArea.processMouseMotionEvent(ev);
+ }
+
+ /**
+ * Handles key events by forwarding it to <code>processKeyEvent()</code>.
+ *
+ * @param ev the mouse event
+ */
+ public void handleKeyEvent(KeyEvent ev)
+ {
+ textArea.processKeyEvent(ev);
+ }
+
+ /**
+ * Handles focus events by forwarding it to
+ * <code>processFocusEvent()</code>.
+ *
+ * @param ev the Focus event
+ */
+ public void handleFocusEvent(FocusEvent ev)
+ {
+ textArea.processFocusEvent(ev);
+ }
+
+ /**
+ * Overridden so that this method returns the correct value even without a
+ * peer.
+ *
+ * @return the screen location of the button
+ */
+ public Point getLocationOnScreen()
+ {
+ return SwingTextAreaPeer.this.getLocationOnScreen();
+ }
+
+ /**
+ * Overridden so that the isShowing method returns the correct value for the
+ * swing button, even if it has no peer on its own.
+ *
+ * @return <code>true</code> if the button is currently showing,
+ * <code>false</code> otherwise
+ */
+ public boolean isShowing()
+ {
+ boolean retVal = false;
+ if (SwingTextAreaPeer.this.awtComponent != null)
+ retVal = SwingTextAreaPeer.this.awtComponent.isShowing();
+ return retVal;
+ }
+
+ /**
+ * Overridden, so that the Swing button can create an Image without its
+ * own peer.
+ *
+ * @param w the width of the image
+ * @param h the height of the image
+ *
+ * @return an image
+ */
+ public Image createImage(int w, int h)
+ {
+ return SwingTextAreaPeer.this.createImage(w, h);
+ }
+
+ public Graphics getGraphics()
+ {
+ return SwingTextAreaPeer.this.getGraphics();
+ }
+
+ public Container getParent()
+ {
+ Container par = null;
+ if (SwingTextAreaPeer.this.awtComponent != null)
+ par = SwingTextAreaPeer.this.awtComponent.getParent();
+ return par;
+ }
+
+ public void requestFocus() {
+ SwingTextAreaPeer.this.requestFocus(awtComponent, false, true, 0);
+ }
+
+ public boolean requestFocus(boolean temporary) {
+ return SwingTextAreaPeer.this.requestFocus(awtComponent, temporary,
+ true, 0);
+ }
+
+ }
+
+ private class SwingTextArea extends JTextArea
+ {
+ /**
+ * Make this method accessible in this Package.
+ */
+ protected final void processComponentKeyEvent(KeyEvent e)
+ {
+ super.processComponentKeyEvent(e);
+ }
+
+ /**
+ * Make this method accessible in this Package.
+ */
+ protected final void processMouseMotionEvent(MouseEvent ev)
+ {
+ super.processMouseMotionEvent(ev);
+ }
+
+ /**
+ * Make this method accessible in this Package.
+ */
+ protected final void processComponentEvent(ComponentEvent e)
+ {
+ super.processComponentEvent(e);
+ }
+
+ /**
+ * Make this method accessible in this Package.
+ */
+ protected final void processFocusEvent(FocusEvent e)
+ {
+ super.processFocusEvent(e);
+ }
+
+ /**
+ * Make this method accessible in this Package.
+ */
+ protected final void processHierarchyBoundsEvent(HierarchyEvent e)
+ {
+ super.processHierarchyBoundsEvent(e);
+ }
+
+ /**
+ * Make this method accessible in this Package.
+ */
+ protected final void processHierarchyEvent(HierarchyEvent e)
+ {
+ super.processHierarchyEvent(e);
+ }
+
+ /**
+ * Make this method accessible in this Package.
+ */
+ protected final void processInputMethodEvent(InputMethodEvent e)
+ {
+ super.processInputMethodEvent(e);
+ }
+
+ /**
+ * Make this method accessible in this Package.
+ */
+ protected final void processMouseEvent(MouseEvent e)
+ {
+ super.processMouseEvent(e);
+ }
+
+ /**
+ * Make this method accessible in this Package.
+ */
+ protected final void processMouseWheelEvent(MouseWheelEvent e)
+ {
+ super.processMouseWheelEvent(e);
+ }
+
+ /**
+ * Make this method accessible in this Package.
+ */
+ protected final void processKeyEvent(KeyEvent e)
+ {
+ super.processKeyEvent(e);
+ }
+
+ public void requestFocus() {
+ SwingTextAreaPeer.this.requestFocus(awtComponent, false, true, 0);
+ }
+
+ public boolean requestFocus(boolean temporary) {
+ return SwingTextAreaPeer.this.requestFocus(awtComponent, temporary,
+ true, 0);
+ }
+ }
+
+ /**
+ * The actual JTextArea.
+ */
+ private SwingTextArea jTextArea;
+
+ public SwingTextAreaPeer(TextArea textArea)
+ {
+ super();
+ jTextArea = new SwingTextArea();
+ SwingScrollPane swingArea = new SwingScrollPane(jTextArea);
+ init(textArea, swingArea);
+
+ JViewport viewport = new JViewport()
+ {
+ public Image createImage(int width, int height)
+ {
+ return awtComponent.createImage(width, height);
+ }
+ };
+
+ viewport.setView(jTextArea);
+ swingArea.setViewport(viewport);
+ // Pull over the text from the text area.
+ setText(textArea.getText());
+
+ // Pull over the number of rows and columns
+ // if non were set use default values
+ int columns = textArea.getColumns();
+ int rows = textArea.getRows();
+
+ if(columns == 0 && rows == 0)
+ {
+ columns = 25;
+ textArea.setColumns(columns);
+ rows = 5;
+ textArea.setRows(rows);
+ }
+
+ jTextArea.setColumns(columns);
+ jTextArea.setRows(rows);
+ }
+
+ public Dimension getMinimumSize(int rows, int cols)
+ {
+ return jTextArea.getMinimumSize();
+ }
+
+ public Dimension getPreferredSize(int rows, int cols)
+ {
+ return jTextArea.getPreferredSize();
+ }
+
+ public void insert(String text, int pos)
+ {
+ jTextArea.insert(text, pos);
+ }
+
+ public void insertText(String text, int pos)
+ {
+ jTextArea.insert(text, pos);
+ }
+
+ public Dimension minimumSize()
+ {
+ return jTextArea.getMinimumSize();
+ }
+
+ public Dimension preferredSize()
+ {
+ return jTextArea.getPreferredSize();
+ }
+
+ public Dimension minimumSize(int rows, int cols)
+ {
+ return jTextArea.getMinimumSize();
+ }
+
+ public Dimension preferredSize(int rows, int cols)
+ {
+ return jTextArea.getPreferredSize();
+ }
+
+ public void replaceRange(String text, int start, int end)
+ {
+ jTextArea.replaceRange(text, start, end);
+ }
+
+ public void replaceText(String text, int start, int end)
+ {
+ jTextArea.replaceRange(text, start, end);
+ }
+
+ public long filterEvents(long filter)
+ {
+ // TODO Auto-generated method stub
+ return 0;
+ }
+
+ public int getCaretPosition()
+ {
+ return jTextArea.getCaretPosition();
+ }
+
+ public Rectangle getCharacterBounds(int pos)
+ {
+ Rectangle r;
+ try
+ {
+ return jTextArea.modelToView(pos);
+ }
+ catch (BadLocationException ex)
+ {
+ r = null;
+ }
+ return r;
+ }
+
+ public int getIndexAtPoint(int x, int y)
+ {
+ return jTextArea.viewToModel(new Point(x, y));
+ }
+
+ public InputMethodRequests getInputMethodRequests()
+ {
+ // TODO Auto-generated method stub
+ return null;
+ }
+
+ public int getSelectionEnd()
+ {
+ return jTextArea.getSelectionEnd();
+ }
+
+ public int getSelectionStart()
+ {
+ return jTextArea.getSelectionStart();
+ }
+
+ public String getText()
+ {
+ return jTextArea.getText();
+ }
+
+ public void select(int start, int end)
+ {
+ jTextArea.select(start, end);
+ }
+
+ public void setCaretPosition(int pos)
+ {
+ jTextArea.setCaretPosition(pos);
+ }
+
+ public void setEditable(boolean editable)
+ {
+ jTextArea.setEditable(editable);
+ }
+
+ public void setText(String text)
+ {
+ jTextArea.setText(text);
+ }
+
+ public void reshape(int x, int y, int width, int height)
+ {
+ if (swingComponent != null)
+ {
+ swingComponent.getJComponent().setBounds(x, y, width, height);
+ swingComponent.getJComponent().validate();
+ }
+ }
+
+}