| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| // __________ Imports __________ |
| |
| import com.sun.star.uno.UnoRuntime; |
| |
| import java.awt.*; |
| import javax.swing.*; |
| import java.lang.String; |
| |
| // __________ Implementation __________ |
| |
| /** |
| * Implement a view to show status informations |
| * of currently loaded document of a document view. |
| * It use seperate listener threads to get this informations |
| * and actualize it automaticly if frame broadcast changes of |
| * his contained document. |
| * Threads are neccessary to prevent this view against deadlocks. |
| * These deadlocks can occure if a listener will be notified |
| * by the office in an "oneway" method and try to call back |
| * to the office by using a synchronous method. |
| * UNO must guarantee order of all these calls ... and if |
| * the source of arrived event holds a mutex and our synchronous |
| * call needs this mutex too => a deadlock occure. |
| * Why? UNO had created a new thread for our synchronous call |
| * inside the office process and so exist different threads |
| * for this constallation. |
| * |
| * @author Andreas Schlüns |
| * @created 20.06.2002 15:08 |
| */ |
| public class StatusView extends JPanel |
| implements IShutdownListener |
| { |
| // ____________________ |
| |
| /** |
| * const |
| * These URL's describe available feature states. |
| */ |
| public static final String FEATUREURL_FONT = "slot:10007"; |
| public static final String FEATUREURL_SIZE = "slot:10015"; |
| public static final String FEATUREURL_BOLD = "slot:10009"; |
| public static final String FEATUREURL_ITALIC = "slot:10008"; |
| public static final String FEATUREURL_UNDERLINE = "slot:10014"; |
| |
| // ____________________ |
| |
| /** |
| * const |
| * These values are used to show current state of showed feature. |
| */ |
| public static final String FONT_OFF = "unknown" ; |
| public static final String SIZE_OFF = "0.0" ; |
| public static final String BOLD_OFF = "-" ; |
| public static final String ITALIC_OFF = "-" ; |
| public static final String UNDERLINE_OFF = "-" ; |
| |
| public static final String FONT_ON = "" ; |
| public static final String SIZE_ON = "" ; |
| public static final String BOLD_ON = "X" ; |
| public static final String ITALIC_ON = "X" ; |
| public static final String UNDERLINE_ON = "X" ; |
| |
| // ____________________ |
| |
| /** |
| * @member mlaFontValue shows status of font name |
| * @member mlaSizeValue shows status of font size |
| * @member mlaBoldValue shows status of font style bold |
| * @member mlaUnderlineValue shows status of font style underline |
| * @member mlaItalicValue shows status of font style italic |
| * |
| * @member maFontListener threadsafe(!) helper to listen for status event which describe font name |
| * @member maSizeListener threadsafe(!) helper to listen for status event which describe font size |
| * @member maBoldListener threadsafe(!) helper to listen for status event which describe font style bold |
| * @member maUnderlineListener threadsafe(!) helper to listen for status event which describe font style underline |
| * @member maItalicListener threadsafe(!) helper to listen for status event which describe font style italic |
| */ |
| private JLabel m_laFontValue ; |
| private JLabel m_laSizeValue ; |
| private JLabel m_laBoldValue ; |
| private JLabel m_laUnderlineValue ; |
| private JLabel m_laItalicValue ; |
| |
| private StatusListener m_aFontListener ; |
| private StatusListener m_aSizeListener ; |
| private StatusListener m_aBoldListener ; |
| private StatusListener m_aUnderlineListener ; |
| private StatusListener m_aItalicListener ; |
| |
| // ____________________ |
| |
| /** |
| * ctor |
| * Create view controls on startup and initialize it with default values. |
| * Filling of view items can be done by special set-methods. |
| * We don't start listening here! see setFrame() for that ... |
| */ |
| StatusView() |
| { |
| this.setLayout(new GridBagLayout()); |
| |
| GridBagConstraints aConstraint = new GridBagConstraints(); |
| aConstraint.anchor = GridBagConstraints.NORTHWEST; |
| aConstraint.insets = new Insets(2,2,2,2); |
| aConstraint.gridy = 0; |
| aConstraint.gridx = 0; |
| |
| JLabel laFont = new JLabel("Font" ); |
| JLabel laSize = new JLabel("Size" ); |
| JLabel laBold = new JLabel("Bold" ); |
| JLabel laUnderline = new JLabel("Underline"); |
| JLabel laItalic = new JLabel("Italic" ); |
| |
| m_laFontValue = new JLabel(); |
| m_laSizeValue = new JLabel(); |
| m_laBoldValue = new JLabel(); |
| m_laUnderlineValue = new JLabel(); |
| m_laItalicValue = new JLabel(); |
| |
| aConstraint.gridx = 0; |
| this.add( laFont, aConstraint ); |
| aConstraint.gridx = 1; |
| this.add( m_laFontValue, aConstraint ); |
| |
| ++aConstraint.gridy; |
| |
| aConstraint.gridx = 0; |
| this.add( laSize, aConstraint ); |
| aConstraint.gridx = 1; |
| this.add( m_laSizeValue, aConstraint ); |
| |
| ++aConstraint.gridy; |
| |
| aConstraint.gridx = 0; |
| this.add( laSize, aConstraint ); |
| aConstraint.gridx = 1; |
| this.add( m_laSizeValue, aConstraint ); |
| |
| ++aConstraint.gridy; |
| |
| aConstraint.gridx = 0; |
| this.add( laBold, aConstraint ); |
| aConstraint.gridx = 1; |
| this.add( m_laBoldValue, aConstraint ); |
| |
| ++aConstraint.gridy; |
| |
| aConstraint.gridx = 0; |
| this.add( laUnderline, aConstraint ); |
| aConstraint.gridx = 1; |
| this.add( m_laUnderlineValue, aConstraint ); |
| |
| ++aConstraint.gridy; |
| |
| aConstraint.gridx = 0; |
| this.add( laItalic, aConstraint ); |
| aConstraint.gridx = 1; |
| this.add( m_laItalicValue, aConstraint ); |
| |
| m_laFontValue.setEnabled (false); |
| m_laSizeValue.setEnabled (false); |
| m_laBoldValue.setEnabled (false); |
| m_laItalicValue.setEnabled (false); |
| m_laUnderlineValue.setEnabled(false); |
| |
| m_laFontValue.setText (FONT_OFF ); |
| m_laSizeValue.setText (SIZE_OFF ); |
| m_laBoldValue.setText (BOLD_OFF ); |
| m_laItalicValue.setText (ITALIC_OFF ); |
| m_laUnderlineValue.setText(UNDERLINE_OFF); |
| } |
| |
| // ____________________ |
| |
| /** |
| * Set new frame for this view and start listening for events imedatly. |
| * We create one status listener for every control we whish to update. |
| * And because the environment of the frame can be changed - these |
| * listener refresh himself internaly for frame action events too. |
| * So we register it as such frame action listener only here. |
| * Rest is done automaticly ... |
| * |
| * @param xFrame |
| * will be used as source of possible status events |
| */ |
| public void setFrame(com.sun.star.frame.XFrame xFrame) |
| { |
| if (xFrame==null) |
| return; |
| |
| // create some listener on given frame for available status events |
| // Created listener instances will register herself on this frame and |
| // show her received informations automaticly on setted UI controls. |
| m_aFontListener = new StatusListener(m_laFontValue ,FONT_ON ,FONT_OFF ,xFrame, FEATUREURL_FONT ); |
| m_aSizeListener = new StatusListener(m_laSizeValue ,SIZE_ON ,SIZE_OFF ,xFrame, FEATUREURL_SIZE ); |
| m_aBoldListener = new StatusListener(m_laBoldValue ,BOLD_ON ,BOLD_OFF ,xFrame, FEATUREURL_BOLD ); |
| m_aItalicListener = new StatusListener(m_laItalicValue ,ITALIC_ON ,ITALIC_OFF ,xFrame, FEATUREURL_ITALIC ); |
| m_aUnderlineListener = new StatusListener(m_laUnderlineValue,UNDERLINE_ON,UNDERLINE_OFF,xFrame, FEATUREURL_UNDERLINE); |
| |
| m_aFontListener.startListening(); |
| m_aSizeListener.startListening(); |
| m_aBoldListener.startListening(); |
| m_aItalicListener.startListening(); |
| m_aUnderlineListener.startListening(); |
| } |
| |
| // ____________________ |
| |
| /** |
| * If this java application shutdown - we must cancel all current existing |
| * listener connections. Otherwhise the office will run into some |
| * DisposedExceptions if it tries to use these forgotten listener references. |
| * And of course it can die doing that. |
| * We are registered at a central object to be informed if the VM will exit. |
| * So we can react. |
| */ |
| public void shutdown() |
| { |
| m_aFontListener.shutdown(); |
| m_aSizeListener.shutdown(); |
| m_aBoldListener.shutdown(); |
| m_aItalicListener.shutdown(); |
| m_aUnderlineListener.shutdown(); |
| |
| m_aFontListener = null; |
| m_aSizeListener = null; |
| m_aBoldListener = null; |
| m_aItalicListener = null; |
| m_aUnderlineListener = null; |
| } |
| } |
