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Diffstat (limited to 'libjava/classpath/javax/swing/text/DefaultEditorKit.java')
| -rw-r--r-- | libjava/classpath/javax/swing/text/DefaultEditorKit.java | 418 |
1 files changed, 418 insertions, 0 deletions
diff --git a/libjava/classpath/javax/swing/text/DefaultEditorKit.java b/libjava/classpath/javax/swing/text/DefaultEditorKit.java new file mode 100644 index 00000000000..aa2fbe8509a --- /dev/null +++ b/libjava/classpath/javax/swing/text/DefaultEditorKit.java @@ -0,0 +1,418 @@ +/* DefaultEditorKit.java -- + Copyright (C) 2002, 2004, 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.Toolkit; +import java.awt.event.ActionEvent; +import java.io.BufferedReader; +import java.io.IOException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.io.OutputStream; +import java.io.OutputStreamWriter; +import java.io.Reader; +import java.io.Writer; + +import javax.swing.Action; + +public class DefaultEditorKit extends EditorKit +{ + public static class BeepAction + extends TextAction + { + public BeepAction() + { + super(beepAction); + } + + public void actionPerformed(ActionEvent event) + { + Toolkit.getDefaultToolkit().beep(); + } + } + + public static class CopyAction + extends TextAction + { + public CopyAction() + { + super(copyAction); + } + public void actionPerformed(ActionEvent event) + { + } + } + + public static class CutAction + extends TextAction + { + public CutAction() + { + super(cutAction); + } + + public void actionPerformed(ActionEvent event) + { + } + } + + /** + * This action is executed as default action when a KEY_TYPED + * event is received and no keymap entry exists for that. The purpose + * of this action is to filter out a couple of characters. This includes + * the control characters and characters with the ALT-modifier. + * + * If an event does not get filtered, it is inserted into the document + * of the text component. If there is some text selected in the text component, + * this text will be replaced. + */ + public static class DefaultKeyTypedAction + extends TextAction + { + public DefaultKeyTypedAction() + { + super(defaultKeyTypedAction); + } + + public void actionPerformed(ActionEvent event) + { + // first we filter the following events: + // - control characters + // - key events with the ALT modifier (FIXME: filter that too!) + char c = event.getActionCommand().charAt(0); + if (Character.isISOControl(c)) + return; + + JTextComponent t = getTextComponent(event); + if (t != null) + { + try + { + t.getDocument().insertString(t.getCaret().getDot(), event.getActionCommand(), null); + t.getCaret().setDot(Math.min(t.getCaret().getDot() + 1, + t.getDocument().getEndPosition().getOffset())); + } + catch (BadLocationException be) + { + // FIXME: we're not authorized to throw this.. swallow it? + } + } + } + } + + /** + * This action inserts a newline character into the document + * of the text component. This is typically triggered by hitting + * ENTER on the keyboard. + */ + public static class InsertBreakAction + extends TextAction + { + public InsertBreakAction() + { + super(insertBreakAction); + } + + public void actionPerformed(ActionEvent event) + { + JTextComponent t = getTextComponent(event); + t.replaceSelection("\n"); + } + } + + public static class InsertContentAction + extends TextAction + { + public InsertContentAction() + { + super(insertContentAction); + } + public void actionPerformed(ActionEvent event) + { + } + } + + public static class InsertTabAction + extends TextAction + { + public InsertTabAction() + { + super(insertTabAction); + } + + public void actionPerformed(ActionEvent event) + { + } + } + + public static class PasteAction + extends TextAction + { + public PasteAction() + { + super(pasteAction); + } + + public void actionPerformed(ActionEvent event) + { + } + } + + private static final long serialVersionUID = 9017245433028523428L; + + public static final String backwardAction = "caret-backward"; + public static final String beepAction = "beep"; + public static final String beginAction = "caret-begin"; + public static final String beginLineAction = "caret-begin-line"; + public static final String beginParagraphAction = "caret-begin-paragraph"; + public static final String beginWordAction = "caret-begin-word"; + public static final String copyAction = "copy-to-clipboard"; + public static final String cutAction = "cut-to-clipboard"; + public static final String defaultKeyTypedAction = "default-typed"; + public static final String deleteNextCharAction = "delete-next"; + public static final String deletePrevCharAction = "delete-previous"; + public static final String downAction = "caret-down"; + public static final String endAction = "caret-end"; + public static final String endLineAction = "caret-end-line"; + public static final String EndOfLineStringProperty = "__EndOfLine__"; + public static final String endParagraphAction = "caret-end-paragraph"; + public static final String endWordAction = "caret-end-word"; + public static final String forwardAction = "caret-forward"; + public static final String insertBreakAction = "insert-break"; + public static final String insertContentAction = "insert-content"; + public static final String insertTabAction = "insert-tab"; + public static final String nextWordAction = "caret-next-word"; + public static final String pageDownAction = "page-down"; + public static final String pageUpAction = "page-up"; + public static final String pasteAction = "paste-from-clipboard"; + public static final String previousWordAction = "caret-previous-word"; + public static final String readOnlyAction = "set-read-only"; + public static final String selectAllAction = "select-all"; + public static final String selectionBackwardAction = "selection-backward"; + public static final String selectionBeginAction = "selection-begin"; + public static final String selectionBeginLineAction = "selection-begin-line"; + public static final String selectionBeginParagraphAction = + "selection-begin-paragraph"; + public static final String selectionBeginWordAction = "selection-begin-word"; + public static final String selectionDownAction = "selection-down"; + public static final String selectionEndAction = "selection-end"; + public static final String selectionEndLineAction = "selection-end-line"; + public static final String selectionEndParagraphAction = + "selection-end-paragraph"; + public static final String selectionEndWordAction = "selection-end-word"; + public static final String selectionForwardAction = "selection-forward"; + public static final String selectionNextWordAction = "selection-next-word"; + public static final String selectionPreviousWordAction = + "selection-previous-word"; + public static final String selectionUpAction = "selection-up"; + public static final String selectLineAction = "select-line"; + public static final String selectParagraphAction = "select-paragraph"; + public static final String selectWordAction = "select-word"; + public static final String upAction = "caret-up"; + public static final String writableAction = "set-writable"; + + public DefaultEditorKit() + { + } + + private static Action[] defaultActions = + new Action[] { + new BeepAction(), + new CopyAction(), + new CutAction(), + new DefaultKeyTypedAction(), + new InsertBreakAction(), + new InsertContentAction(), + new InsertTabAction(), + new PasteAction(), + new TextAction(deleteNextCharAction) + { + public void actionPerformed(ActionEvent event) + { + JTextComponent t = getTextComponent(event); + if (t != null) + { + try + { + int pos = t.getCaret().getDot(); + if (pos < t.getDocument().getEndPosition().getOffset()) + { + t.getDocument().remove(t.getCaret().getDot(), 1); + } + } + catch (BadLocationException e) + { + // FIXME: we're not authorized to throw this.. swallow it? + } + } + } + }, + new TextAction(deletePrevCharAction) + { + public void actionPerformed(ActionEvent event) + { + JTextComponent t = getTextComponent(event); + if (t != null) + { + try + { + int pos = t.getCaret().getDot(); + if (pos > t.getDocument().getStartPosition().getOffset()) + { + t.getDocument().remove(pos - 1, 1); + t.getCaret().setDot(pos - 1); + } + } + catch (BadLocationException e) + { + // FIXME: we're not authorized to throw this.. swallow it? + } + } + } + }, + new TextAction(backwardAction) + { + public void actionPerformed(ActionEvent event) + { + JTextComponent t = getTextComponent(event); + if (t != null) + { + t.getCaret().setDot(Math.max(t.getCaret().getDot() - 1, + t.getDocument().getStartPosition().getOffset())); + } + } + }, + new TextAction(forwardAction) + { + public void actionPerformed(ActionEvent event) + { + JTextComponent t = getTextComponent(event); + if (t != null) + { + t.getCaret().setDot(Math.min(t.getCaret().getDot() + 1, + t.getDocument().getEndPosition().getOffset())); + } + } + }, + new TextAction(selectionBackwardAction) + { + public void actionPerformed(ActionEvent event) + { + JTextComponent t = getTextComponent(event); + if (t != null) + { + t.getCaret().moveDot(Math.max(t.getCaret().getDot() - 1, + t.getDocument().getStartPosition().getOffset())); + } + } + }, + new TextAction(selectionForwardAction) + { + public void actionPerformed(ActionEvent event) + { + JTextComponent t = getTextComponent(event); + if (t != null) + { + t.getCaret().moveDot(Math.min(t.getCaret().getDot() + 1, + t.getDocument().getEndPosition().getOffset())); + } + } + }, + }; + + public Caret createCaret() + { + return new DefaultCaret(); + } + + public Document createDefaultDocument() + { + return new PlainDocument(); + } + + public Action[] getActions() + { + return defaultActions; + } + + public String getContentType() + { + return "text/plain"; + } + + public ViewFactory getViewFactory() + { + return null; + } + + public void read(InputStream in, Document document, int offset) + throws BadLocationException, IOException + { + read(new InputStreamReader(in), document, offset); + } + + public void read(Reader in, Document document, int offset) + throws BadLocationException, IOException + { + BufferedReader reader = new BufferedReader(in); + + String line; + StringBuffer content = new StringBuffer(); + + while ((line = reader.readLine()) != null) + { + content.append(line); + content.append("\n"); + } + + document.insertString(offset, content.toString(), + SimpleAttributeSet.EMPTY); + } + + public void write(OutputStream out, Document document, int offset, int len) + throws BadLocationException, IOException + { + write(new OutputStreamWriter(out), document, offset, len); + } + + public void write(Writer out, Document document, int offset, int len) + throws BadLocationException, IOException + { + } +} |
