Source Code Cross Referenced for PopupManager.java in  » J2EE » Sofia » com » salmonllc » swing » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » Sofia » com.salmonllc.swing 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        //** Copyright Statement ***************************************************
002:        //The Salmon Open Framework for Internet Applications (SOFIA)
003:        // Copyright (C) 1999 - 2002, Salmon LLC
004:        //
005:        // This program is free software; you can redistribute it and/or
006:        // modify it under the terms of the GNU General Public License version 2
007:        // as published by the Free Software Foundation;
008:        //
009:        // This program is distributed in the hope that it will be useful,
010:        // but WITHOUT ANY WARRANTY; without even the implied warranty of
011:        // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
012:        // GNU General Public License for more details.
013:        //
014:        // You should have received a copy of the GNU General Public License
015:        // along with this program; if not, write to the Free Software
016:        // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
017:        //
018:        // For more information please visit http://www.salmonllc.com
019:        //** End Copyright Statement ***************************************************
020:        package com.salmonllc.swing;
021:
022:        import javax.swing.*;
023:        import java.awt.*;
024:
025:        /**
026:         * This class is used by other components in the framework to display popups windows
027:         */
028:        public class PopupManager {
029:            private static PopupManager _man;
030:            private Popup _curWindow;
031:            private JPopupMenu _curMenu;
032:            private static Color _errorWindowBackground = null;
033:            private static Color _errorWindowForeground = null;
034:
035:            private PopupManager() {
036:                super ();
037:            }
038:
039:            /**
040:             * Returns a singleton popup manager
041:             */
042:            public static PopupManager getPopupManager() {
043:                if (_man == null)
044:                    _man = new PopupManager();
045:                return _man;
046:            }
047:
048:            /**
049:             * Hides the current visible window
050:             */
051:            public void hideWindow() {
052:                if (_curWindow != null) {
053:                    _curWindow.hide();
054:                }
055:                if (_curMenu != null)
056:                    _curMenu.setVisible(false);
057:            }
058:
059:            /**
060:             * Displays an error bubble below the specified component
061:             * @param comp The component to display the bubble near
062:             * @param message The message to display
063:             */
064:            public void showErrorWindow(Component comp, String message) {
065:                hideWindow();
066:                Point screenLocation = comp.getLocationOnScreen();
067:                Rectangle compBounds = comp.getBounds();
068:                Point location = new Point();
069:                Rectangle screenBounds = comp.getGraphicsConfiguration()
070:                        .getBounds();
071:                JToolTip tip = new JToolTip();
072:                tip.setTipText(message);
073:                if (_errorWindowBackground != null)
074:                    tip.setBackground(_errorWindowBackground);
075:                if (_errorWindowForeground != null)
076:                    tip.setForeground(_errorWindowForeground);
077:                Dimension size = tip.getPreferredSize();
078:                location.x = screenLocation.x + 5;
079:                if ((location.x + size.width) > (screenBounds.x
080:                        + screenBounds.width - 20))
081:                    location.x = (screenBounds.x + screenBounds.width - 20)
082:                            - size.width;
083:
084:                location.y = screenLocation.y + compBounds.height + 5;
085:                if ((location.y + size.height) > (screenBounds.y
086:                        + screenBounds.height - 30))
087:                    location.y = screenLocation.y - size.height - 2;
088:
089:                PopupFactory factory = PopupFactory.getSharedInstance();
090:                _curWindow = factory
091:                        .getPopup(comp, tip, location.x, location.y);
092:                _curWindow.show();
093:
094:                comp.requestFocus();
095:            }
096:
097:            /**
098:             * Displays an error bubble below the specified component
099:             * @param comp The component to display the bubble near
100:             * @param message The message to display
101:             */
102:            public void showPopupPanel(Component comp, JPanel panel) {
103:                hideWindow();
104:                Point screenLocation = comp.getLocationOnScreen();
105:                Rectangle compBounds = comp.getBounds();
106:                Point location = new Point();
107:                Rectangle screenBounds = comp.getGraphicsConfiguration()
108:                        .getBounds();
109:                Dimension size = panel.getPreferredSize();
110:                location.x = screenLocation.x;
111:                if ((location.x + size.width) > (screenBounds.x
112:                        + screenBounds.width - 20))
113:                    location.x = (screenBounds.x + screenBounds.width - 20)
114:                            - size.width;
115:
116:                location.y = screenLocation.y + compBounds.height;
117:                if ((location.y + size.height) > (screenBounds.y
118:                        + screenBounds.height - 30))
119:                    location.y = screenLocation.y - size.height;
120:
121:                PopupFactory factory = PopupFactory.getSharedInstance();
122:                _curWindow = factory.getPopup(comp, panel, location.x,
123:                        location.y);
124:                _curWindow.show();
125:
126:                comp.requestFocus();
127:            }
128:
129:            /**
130:             * Sets the colors for error window popups
131:             * @param background the background color
132:             * @param forground the text color
133:             */
134:            public static void setErrorWindowColors(Color background,
135:                    Color forground) {
136:                _errorWindowBackground = background;
137:                _errorWindowForeground = forground;
138:            }
139:
140:            /**
141:             *  Displays a popup menu, but hides any popup currently showing
142:             */
143:            public void showPopupMenu(JPopupMenu menu, JComponent comp, int x,
144:                    int y) {
145:                //     hideWindow();
146:                _curMenu = menu;
147:                menu.setSelected(null);
148:                menu.show(comp, x, y);
149:                menu.setVisible(true);
150:            }
151:        }
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