X-Git-Url: http://secure.phpeclipse.com
diff --git a/archive/net.sourceforge.phpeclipse.css.ui/src/net/sourceforge/phpeclipse/css/ui/internal/editor/ShowSelectedElementOnlyAction.java b/archive/net.sourceforge.phpeclipse.css.ui/src/net/sourceforge/phpeclipse/css/ui/internal/editor/ShowSelectedElementOnlyAction.java
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+++ b/archive/net.sourceforge.phpeclipse.css.ui/src/net/sourceforge/phpeclipse/css/ui/internal/editor/ShowSelectedElementOnlyAction.java
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+/*
+ * Copyright (c) 2003-2004 Christopher Lenz and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * Christopher Lenz - initial API and implementation
+ *
+ * $Id: ShowSelectedElementOnlyAction.java,v 1.1 2004-09-02 18:11:50 jsurfer Exp $
+ */
+
+package net.sourceforge.phpeclipse.css.ui.internal.editor;
+
+import net.sourceforge.phpeclipse.css.ui.CssUI;
+import net.sourceforge.phpeclipse.css.ui.internal.CssUIMessages;
+import net.sourceforge.phpeclipse.css.ui.internal.CssUIPreferences;
+
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.jface.util.IPropertyChangeListener;
+import org.eclipse.jface.util.PropertyChangeEvent;
+import org.eclipse.ui.texteditor.ITextEditor;
+import org.eclipse.ui.texteditor.TextEditorAction;
+
+/**
+ * A toolbar action which toggles the presentation model of the connected text
+ * editor. The editor shows either the highlight range only or always the whole
+ * document.
+ *
+ *
+ * This class is an implementation for the retargetable action
+ * TOGGLE_SHOW_SELECTED_ELEMENT_ONLY
provided by the platform.
+ *
+ *
+ * @see org.eclipse.ui.texteditor.ITextEditorActionDefinitionIds#TOGGLE_SHOW_SELECTED_ELEMENT_ONLY
+ */
+public class ShowSelectedElementOnlyAction extends TextEditorAction
+ implements IPropertyChangeListener {
+
+ // Instance Variables ------------------------------------------------------
+
+ private IPreferenceStore store;
+
+ // Constructors ------------------------------------------------------------
+
+ /**
+ * Constructor.
+ */
+ public ShowSelectedElementOnlyAction() {
+ super(CssUIMessages.getResourceBundle(),
+ "CssEditor.showSelectedElementOnly.", null); //$NON-NLS-1$
+ store = CssUI.getDefault().getPreferenceStore();
+ update();
+ }
+
+ // TextEditor Implementation -----------------------------------------------
+
+ /*
+ * @see org.eclipse.jface.action.IAction#run()
+ */
+ public void run() {
+ ITextEditor editor = getTextEditor();
+ if (editor != null) {
+ IRegion highlightRange = editor.getHighlightRange();
+ editor.resetHighlightRange();
+ boolean show = !editor.showsHighlightRangeOnly();
+ setChecked(show);
+ editor.showHighlightRangeOnly(show);
+ if (highlightRange != null) {
+ editor.setHighlightRange(highlightRange.getOffset(),
+ highlightRange.getLength(), true);
+ }
+ store.removePropertyChangeListener(this);
+ store.setValue(
+ CssUIPreferences.EDITOR_SHOW_SELECTED_ELEMENT_ONLY, show);
+ store.addPropertyChangeListener(this);
+ }
+ }
+
+ /*
+ * @see TextEditorAction#setEditor(ITextEditor)
+ */
+ public void setEditor(ITextEditor editor) {
+ super.setEditor(editor);
+ if (editor != null) {
+ if (store == null) {
+ store = CssUI.getDefault().getPreferenceStore();
+ store.addPropertyChangeListener(this);
+ }
+ synchronizeWithPreference(editor);
+ } else if (store != null) {
+ store.removePropertyChangeListener(this);
+ store = null;
+ }
+ update();
+ }
+
+ /*
+ * @see org.eclipse.ui.texteditor.IUpdate#update()
+ */
+ public void update() {
+ ITextEditor editor = getTextEditor();
+ if (editor != null) {
+ setChecked(getTextEditor().showsHighlightRangeOnly());
+ setEnabled(true);
+ } else {
+ setEnabled(false);
+ }
+ }
+
+ // IPropertyChangeListener Implementation ----------------------------------
+
+ /*
+ * @see IPropertyChangeListener#propertyChange(PropertyChangeEvent)
+ */
+ public void propertyChange(PropertyChangeEvent event) {
+ String p = event.getProperty();
+ if (CssUIPreferences.EDITOR_SHOW_SELECTED_ELEMENT_ONLY.equals(p)) {
+ synchronizeWithPreference(getTextEditor());
+ }
+ }
+
+ // Private Methods ---------------------------------------------------------
+
+ /**
+ * Synchronizes the appearance of the editor with what the preference store
+ * contains.
+ *
+ * @param editor the editor to synchronize
+ */
+ private void synchronizeWithPreference(ITextEditor editor) {
+ if (editor != null) {
+ boolean show = this.store.getBoolean(
+ CssUIPreferences.EDITOR_SHOW_SELECTED_ELEMENT_ONLY);
+ setChecked(show);
+ if (show != editor.showsHighlightRangeOnly()) {
+ IRegion highlightRange = editor.getHighlightRange();
+ editor.resetHighlightRange();
+ editor.showHighlightRangeOnly(show);
+ if (highlightRange != null) {
+ editor.setHighlightRange(highlightRange.getOffset(),
+ highlightRange.getLength(), true);
+ }
+ }
+ }
+ }
+
+}