com.badlogic.gdx.InputMultiplexer.java Source code

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Here is the source code for com.badlogic.gdx.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;

/** 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 Array<InputProcessor> processors = new Array(4);

    public InputMultiplexer() {
    }

    public InputMultiplexer(InputProcessor... processors) {
        for (int i = 0; i < processors.length; i++)
            this.processors.add(processors[i]);
    }

    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(Array<InputProcessor> processors) {
        this.processors = processors;
    }

    public Array<InputProcessor> getProcessors() {
        return processors;
    }

    public boolean keyDown(int keycode) {
        for (int i = 0, n = processors.size; i < n; i++)
            if (processors.get(i).keyDown(keycode))
                return true;
        return false;
    }

    public boolean keyUp(int keycode) {
        for (int i = 0, n = processors.size; i < n; i++)
            if (processors.get(i).keyUp(keycode))
                return true;
        return false;
    }

    public boolean keyTyped(char character) {
        for (int i = 0, n = processors.size; i < n; i++)
            if (processors.get(i).keyTyped(character))
                return true;
        return false;
    }

    public boolean touchDown(int screenX, int screenY, int pointer, int button) {
        for (int i = 0, n = processors.size; i < n; i++)
            if (processors.get(i).touchDown(screenX, screenY, pointer, button))
                return true;
        return false;
    }

    public boolean touchUp(int screenX, int screenY, int pointer, int button) {
        for (int i = 0, n = processors.size; i < n; i++)
            if (processors.get(i).touchUp(screenX, screenY, pointer, button))
                return true;
        return false;
    }

    public boolean touchDragged(int screenX, int screenY, int pointer) {
        for (int i = 0, n = processors.size; i < n; i++)
            if (processors.get(i).touchDragged(screenX, screenY, pointer))
                return true;
        return false;
    }

    @Override
    public boolean mouseMoved(int screenX, int screenY) {
        for (int i = 0, n = processors.size; i < n; i++)
            if (processors.get(i).mouseMoved(screenX, screenY))
                return true;
        return false;
    }

    @Override
    public boolean scrolled(int amount) {
        for (int i = 0, n = processors.size; i < n; i++)
            if (processors.get(i).scrolled(amount))
                return true;
        return false;
    }
}