Source Code Cross Referenced for DisplayEventConsumer.java in  » 6.0-JDK-Modules » j2me » com » sun » midp » lcdui » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » com.sun.midp.lcdui 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *   
003:         *
004:         * Copyright  1990-2007 Sun Microsystems, Inc. All Rights Reserved.
005:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
006:         * 
007:         * This program is free software; you can redistribute it and/or
008:         * modify it under the terms of the GNU General Public License version
009:         * 2 only, as published by the Free Software Foundation.
010:         * 
011:         * This program is distributed in the hope that it will be useful, but
012:         * WITHOUT ANY WARRANTY; without even the implied warranty of
013:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014:         * General Public License version 2 for more details (a copy is
015:         * included at /legal/license.txt).
016:         * 
017:         * You should have received a copy of the GNU General Public License
018:         * version 2 along with this work; if not, write to the Free Software
019:         * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020:         * 02110-1301 USA
021:         * 
022:         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
023:         * Clara, CA 95054 or visit www.sun.com if you need additional
024:         * information or have any questions.
025:         */
026:
027:        package com.sun.midp.lcdui;
028:
029:        import javax.microedition.lcdui.Displayable;
030:
031:        /**
032:         * This interface provides a set of methods to handle 
033:         * display-related events: user input, drawing, 
034:         * callbacks that are assosiated with displays.
035:         *
036:         * Implementor of this I/F shall be instance specific 
037:         * i.e. associated with a Display object instance 
038:         * (ex. Display.DisplayEventConsumerImpl class).
039:         *
040:         * Therefore it is assumed that target identification 
041:         * (displayId -> Display/DisplayAccess/DisplayEventConsumerImpl) 
042:         * is done before calling I/F methods in EventListener.
043:         *
044:         */
045:        public interface DisplayEventConsumer {
046:
047:            /*
048:             * LOCAL USER INPUT EVENTS - produced by Native code
049:             *
050:             * KEY/non-IME
051:             * KEY/IME
052:             * PEN or POINTER (what name is better?)
053:             * CMD
054:             * PEER_CHANGED
055:             * 
056:             */
057:
058:            /**
059:             * Called by event delivery when a key press,release or repeate event 
060:             * needs to be processed.
061:             *
062:             * @param keyType key press, release or repeate
063:             *        is one of EventConstants.PRESSED, EventConstants.RELEASED,
064:             *        EventConstants.REPEATED.
065:             * @param keyCode key code to process
066:             */
067:            public void handleKeyEvent(int keyType, int keyCode);
068:
069:            /**
070:             * Called by event delivery when an input method event is processed.
071:             *
072:             * @param inputText string to process
073:             */
074:            public void handleInputMethodEvent(String inputText);
075:
076:            /**
077:             * Called by event delivery when a pointer press,release or drag event 
078:             * needs to be processed.
079:             *
080:             * @param pointerType pointer press, release or drag
081:             *        is one of EventConstants.PRESSED, EventConstants.RELEASED,
082:             *        or EventConstants.DRAGGED.     
083:             * @param x x-coordinate of the pointer event
084:             * @param y y-coordinate of the pointer event
085:             */
086:            public void handlePointerEvent(int pointerType, int x, int y);
087:
088:            /**
089:             * Called by event delivery when an abstract Command is fired.
090:             * The parameter is an index into the list of Commands that are
091:             * current, i.e. those associated with the visible Screen.
092:             *
093:             * TBD: param screenId Id of the command target (Displayable) 
094:             * @param cmdId command Id 
095:             */
096:            public void handleCommandEvent(/* int screenId, */int cmdId);
097:
098:            /**
099:             * Called by event delivery to notify an ItemLF in current DisplayableLF
100:             * of a change in its native peer state.
101:             *
102:             * @param modelVersion the version of the peer's data model
103:             * @param itemPeerId the id of the ItemLF's peer whose state has changed
104:             * @param hint some value that is interpreted only between the peers
105:             */
106:            public void handlePeerStateChangeEvent(int modelVersion,
107:                    int itemPeerId, int hint);
108:
109:            /*
110:             * LOCAL DISPLAY MANAGEMENT EVENTS
111:             *
112:             * REPAINT - invoked through RepaintEventListener
113:             * SCREEN_CHANGE
114:             * INVALIDATE
115:             */
116:
117:            /**
118:             * Called by event delivery when a repaint should occur.
119:             *
120:             * @param x1 The origin x coordinate of the repaint region
121:             * @param y1 The origin y coordinate of the repaint region
122:             * @param x2 The bounding x coordinate of the repaint region
123:             * @param y2 The bounding y coordinate of the repaint region
124:             * @param target The optional paint target
125:             */
126:            public void handleRepaintEvent(int x1, int y1, int x2, int y2,
127:                    Object target);
128:
129:            /**
130:             * Called by event delivery when a screen change needs to occur.
131:             *
132:             * @param screen The Displayable to make current in the Display
133:             */
134:            public void handleScreenChangeEvent(Displayable screen);
135:
136:            /**
137:             * Called by event delivery to process a Form invalidation.
138:             */
139:            public void handleInvalidateEvent();
140:
141:            /*
142:             * LOCAL CALLBACK MANAGEMEMT EVENTS
143:             *
144:             * CALL_SERIALLLY
145:             */
146:
147:            /**
148:             * Called by event delivery to batch process 
149:             * all pending serial callbacks. 
150:             */
151:            public void handleCallSeriallyEvent();
152:
153:            /*
154:             * ITEM EVENTS - not associated with a particular Display.
155:             *
156:             * ITEM_CHANGED/STATE_CHANGE
157:             * ITEM_CHANGED/SIZE_REFRESH
158:             * ITEM_CHANGED/MAKE_VISIBLE
159:             *
160:             * Now processed by ItemEventConsumer. 
161:             */
162:
163:            /*
164:             * Called by event delivery when size of screen was changed.
165:             */
166:            public void handleRotationEvent();
167:
168:            /*
169:             * Called by event delivery when full screen repaint is requested.
170:             */
171:            public void handleScreenRepaintEvent();
172:        }
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