axmol/samples/Cpp/TestCpp/Classes/ExtensionsTest/ControlExtensionTest/CCControlPotentiometerTest/CCControlPotentiometerTest.cpp

/*
 * Copyright (c) 2012 cocos2d-x.org
 * Copyright (c) 2012 Yannick Loriot
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

#include "CCControlPotentiometerTest.h"

CCControlPotentiometerTest::CCControlPotentiometerTest()
: _displayValueLabel(NULL)
{

}

CCControlPotentiometerTest::~CCControlPotentiometerTest()
{
    CC_SAFE_RELEASE(_displayValueLabel);
}

bool CCControlPotentiometerTest::init()
{
    if (CCControlScene::init())
    {
        CCSize screenSize = CCDirector::sharedDirector()->getWinSize();
        
        CCNode *layer = CCNode::create();
        layer->setPosition(ccp (screenSize.width / 2, screenSize.height / 2));
        this->addChild(layer, 1);
        
        double layer_width = 0;
        
        // Add the black background for the text
        CCScale9Sprite *background  = CCScale9Sprite::create("extensions/buttonBackground.png");
        background->setContentSize(CCSizeMake(80, 50));
        background->setPosition(ccp(layer_width + background->getContentSize().width / 2.0f, 0));
        layer->addChild(background);
        
        layer_width += background->getContentSize().width;
        
        this->setDisplayValueLabel(CCLabelTTF::create("", "HelveticaNeue-Bold", 30));

        _displayValueLabel->setPosition(background->getPosition());
        layer->addChild(_displayValueLabel);
		
        // Add the slider
        CCControlPotentiometer *potentiometer = CCControlPotentiometer::create("extensions/potentiometerTrack.png"
                                                                                ,"extensions/potentiometerProgress.png"
                                                                                ,"extensions/potentiometerButton.png");
        potentiometer->setPosition(ccp (layer_width + 10 + potentiometer->getContentSize().width / 2, 0));

        // When the value of the slider will change, the given selector will be call
        potentiometer->addTargetWithActionForControlEvents(this, cccontrol_selector(CCControlPotentiometerTest::valueChanged), CCControlEventValueChanged);
        
		layer->addChild(potentiometer);
        
        layer_width += potentiometer->getContentSize().width;
        
        // Set the layer size
        layer->setContentSize(CCSizeMake(layer_width, 0));
        layer->setAnchorPoint(ccp (0.5f, 0.5f));
        
        // Update the value label
        this->valueChanged(potentiometer, CCControlEventValueChanged);
        return true;
	}
	return false;
}

void CCControlPotentiometerTest::valueChanged(CCObject *sender, CCControlEvent controlEvent)
{
    CCControlPotentiometer* pControl = (CCControlPotentiometer*)sender;
	// Change value of label.
    _displayValueLabel->setString(CCString::createWithFormat("%.02f", pControl->getValue())->getCString());	
}