/
InputMultiplexer.java
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/
InputMultiplexer.java
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/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* Licensed 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.
******************************************************************************/
package com.badlogic.gdx;
import com.badlogic.gdx.utils.Array;
import com.badlogic.gdx.utils.SnapshotArray;
/** An {@link InputProcessor} that delegates to an ordered list of other InputProcessors. Delegation for an event stops if a
* processor returns true, which indicates that the event was handled.
* @author Nathan Sweet */
public class InputMultiplexer implements InputProcessor {
private SnapshotArray<InputProcessor> processors = new SnapshotArray(4);
public InputMultiplexer () {
}
public InputMultiplexer (InputProcessor... processors) {
this.processors.addAll(processors);
}
public void addProcessor (int index, InputProcessor processor) {
if (processor == null) throw new NullPointerException("processor cannot be null");
processors.insert(index, processor);
}
public void removeProcessor (int index) {
processors.removeIndex(index);
}
public void addProcessor (InputProcessor processor) {
if (processor == null) throw new NullPointerException("processor cannot be null");
processors.add(processor);
}
public void removeProcessor (InputProcessor processor) {
processors.removeValue(processor, true);
}
/** @return the number of processors in this multiplexer */
public int size () {
return processors.size;
}
public void clear () {
processors.clear();
}
public void setProcessors (InputProcessor... processors) {
this.processors.clear();
this.processors.addAll(processors);
}
public void setProcessors (Array<InputProcessor> processors) {
this.processors.clear();
this.processors.addAll(processors);
}
public SnapshotArray<InputProcessor> getProcessors () {
return processors;
}
public boolean keyDown (int keycode) {
Object[] items = processors.begin();
try {
for (int i = 0, n = processors.size; i < n; i++)
if (((InputProcessor)items[i]).keyDown(keycode)) return true;
} finally {
processors.end();
}
return false;
}
public boolean keyUp (int keycode) {
Object[] items = processors.begin();
try {
for (int i = 0, n = processors.size; i < n; i++)
if (((InputProcessor)items[i]).keyUp(keycode)) return true;
} finally {
processors.end();
}
return false;
}
public boolean keyTyped (char character) {
Object[] items = processors.begin();
try {
for (int i = 0, n = processors.size; i < n; i++)
if (((InputProcessor)items[i]).keyTyped(character)) return true;
} finally {
processors.end();
}
return false;
}
public boolean touchDown (int screenX, int screenY, int pointer, int button) {
Object[] items = processors.begin();
try {
for (int i = 0, n = processors.size; i < n; i++)
if (((InputProcessor)items[i]).touchDown(screenX, screenY, pointer, button)) return true;
} finally {
processors.end();
}
return false;
}
public boolean touchUp (int screenX, int screenY, int pointer, int button) {
Object[] items = processors.begin();
try {
for (int i = 0, n = processors.size; i < n; i++)
if (((InputProcessor)items[i]).touchUp(screenX, screenY, pointer, button)) return true;
} finally {
processors.end();
}
return false;
}
public boolean touchDragged (int screenX, int screenY, int pointer) {
Object[] items = processors.begin();
try {
for (int i = 0, n = processors.size; i < n; i++)
if (((InputProcessor)items[i]).touchDragged(screenX, screenY, pointer)) return true;
} finally {
processors.end();
}
return false;
}
public boolean mouseMoved (int screenX, int screenY) {
Object[] items = processors.begin();
try {
for (int i = 0, n = processors.size; i < n; i++)
if (((InputProcessor)items[i]).mouseMoved(screenX, screenY)) return true;
} finally {
processors.end();
}
return false;
}
public boolean scrolled (float amountX, float amountY) {
Object[] items = processors.begin();
try {
for (int i = 0, n = processors.size; i < n; i++)
if (((InputProcessor)items[i]).scrolled(amountX, amountY)) return true;
} finally {
processors.end();
}
return false;
}
}