| /* 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(); |
| } |
| } |
| |
| } |