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init: fbird
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/*
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* Copyright (c) 2012 cocos2d-x.org
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* http://www.cocos2d-x.org
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*
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* Copyright 2012 Stewart Hamilton-Arrandale.
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* http://creativewax.co.uk
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*
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* Modified by Yannick Loriot.
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* http://yannickloriot.com
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*
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* Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* Converted to c++ / cocos2d-x by Angus C
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*/
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#include "CCControlSaturationBrightnessPicker.h"
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NS_CC_EXT_BEGIN
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ControlSaturationBrightnessPicker::ControlSaturationBrightnessPicker()
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: _saturation(0.0f)
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, _brightness(0.0f)
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, _background(nullptr)
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, _overlay(nullptr)
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, _shadow(nullptr)
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, _slider(nullptr)
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, boxPos(0)
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, boxSize(0)
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{
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}
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ControlSaturationBrightnessPicker::~ControlSaturationBrightnessPicker()
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{
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removeAllChildrenWithCleanup(true);
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_background = nullptr;
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_overlay = nullptr;
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_shadow = nullptr;
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_slider = nullptr;
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}
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bool ControlSaturationBrightnessPicker::initWithTargetAndPos(Node* target, Vec2 pos)
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{
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if (Control::init())
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{
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// Add background and slider sprites
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_background=ControlUtils::addSpriteToTargetWithPosAndAnchor("colourPickerBackground.png", target, pos, Vec2(0.0f, 0.0f));
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_overlay=ControlUtils::addSpriteToTargetWithPosAndAnchor("colourPickerOverlay.png", target, pos, Vec2(0.0f, 0.0f));
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_shadow=ControlUtils::addSpriteToTargetWithPosAndAnchor("colourPickerShadow.png", target, pos, Vec2(0.0f, 0.0f));
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_slider=ControlUtils::addSpriteToTargetWithPosAndAnchor("colourPicker.png", target, pos, Vec2(0.5f, 0.5f));
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_startPos=pos; // starting position of the colour picker
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boxPos = 35; // starting position of the virtual box area for picking a colour
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boxSize = _background->getContentSize().width / 2; // the size (width and height) of the virtual box for picking a colour from
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return true;
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}
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else
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{
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return false;
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}
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}
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ControlSaturationBrightnessPicker* ControlSaturationBrightnessPicker::create(Node* target, Vec2 pos)
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{
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ControlSaturationBrightnessPicker *pRet = new (std::nothrow) ControlSaturationBrightnessPicker();
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pRet->initWithTargetAndPos(target, pos);
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pRet->autorelease();
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return pRet;
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}
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void ControlSaturationBrightnessPicker::setEnabled(bool enabled)
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{
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Control::setEnabled(enabled);
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if (_slider != nullptr)
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{
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_slider->setOpacity(enabled ? 255 : 128);
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}
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}
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void ControlSaturationBrightnessPicker::updateWithHSV(HSV hsv)
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{
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HSV hsvTemp;
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hsvTemp.s = 1;
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hsvTemp.h = hsv.h;
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hsvTemp.v = 1;
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RGBA rgb = ControlUtils::RGBfromHSV(hsvTemp);
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_background->setColor(Color3B((GLubyte)(rgb.r * 255.0f), (GLubyte)(rgb.g * 255.0f), (GLubyte)(rgb.b * 255.0f)));
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}
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void ControlSaturationBrightnessPicker::updateDraggerWithHSV(HSV hsv)
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{
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// Set the position of the slider to the correct saturation and brightness
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Vec2 pos(_startPos.x + boxPos + (boxSize*(1 - hsv.s)),
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_startPos.y + boxPos + (boxSize*hsv.v));
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// update
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updateSliderPosition(pos);
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}
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void ControlSaturationBrightnessPicker::updateSliderPosition(Vec2 sliderPosition)
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{
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// Clamp the position of the icon within the circle
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// Get the center point of the bkgd image
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float centerX = _startPos.x + _background->getBoundingBox().size.width*0.5f;
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float centerY = _startPos.y + _background->getBoundingBox().size.height*0.5f;
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// Work out the distance difference between the location and center
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float dx = sliderPosition.x - centerX;
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float dy = sliderPosition.y - centerY;
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float dist = sqrtf(dx * dx + dy * dy);
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// Update angle by using the direction of the location
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float angle = atan2f(dy, dx);
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// Set the limit to the slider movement within the colour picker
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float limit = _background->getBoundingBox().size.width*0.5f;
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// Check distance doesn't exceed the bounds of the circle
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if (dist > limit)
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{
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sliderPosition.x = centerX + limit * cosf(angle);
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sliderPosition.y = centerY + limit * sinf(angle);
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}
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// Set the position of the dragger
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_slider->setPosition(sliderPosition);
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// Clamp the position within the virtual box for colour selection
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if (sliderPosition.x < _startPos.x + boxPos) sliderPosition.x = _startPos.x + boxPos;
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else if (sliderPosition.x > _startPos.x + boxPos + boxSize - 1) sliderPosition.x = _startPos.x + boxPos + boxSize - 1;
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if (sliderPosition.y < _startPos.y + boxPos) sliderPosition.y = _startPos.y + boxPos;
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else if (sliderPosition.y > _startPos.y + boxPos + boxSize) sliderPosition.y = _startPos.y + boxPos + boxSize;
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// Use the position / slider width to determine the percentage the dragger is at
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_saturation = 1.0f - fabs((_startPos.x + (float)boxPos - sliderPosition.x)/(float)boxSize);
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_brightness = fabs((_startPos.y + (float)boxPos - sliderPosition.y)/(float)boxSize);
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}
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bool ControlSaturationBrightnessPicker::checkSliderPosition(Vec2 location)
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{
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// Clamp the position of the icon within the circle
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// get the center point of the bkgd image
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float centerX = _startPos.x + _background->getBoundingBox().size.width*0.5f;
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float centerY = _startPos.y + _background->getBoundingBox().size.height*0.5f;
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// work out the distance difference between the location and center
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float dx = location.x - centerX;
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float dy = location.y - centerY;
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float dist = sqrtf(dx*dx+dy*dy);
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// check that the touch location is within the bounding rectangle before sending updates
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if (dist <= _background->getBoundingBox().size.width*0.5f)
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{
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updateSliderPosition(location);
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sendActionsForControlEvents(Control::EventType::VALUE_CHANGED);
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return true;
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}
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return false;
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}
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bool ControlSaturationBrightnessPicker::onTouchBegan(Touch* touch, Event* /*event*/)
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{
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if (!isEnabled() || !isVisible())
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{
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return false;
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}
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// Get the touch location
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Vec2 touchLocation=getTouchLocation(touch);
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// Check the touch position on the slider
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return checkSliderPosition(touchLocation);
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}
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void ControlSaturationBrightnessPicker::onTouchMoved(Touch* touch, Event* /*event*/)
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{
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// Get the touch location
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Vec2 touchLocation=getTouchLocation(touch);
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//small modification: this allows changing of the colour, even if the touch leaves the bounding area
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// updateSliderPosition(touchLocation);
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// sendActionsForControlEvents(Control::EventType::VALUE_CHANGED);
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// Check the touch position on the slider
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checkSliderPosition(touchLocation);
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}
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NS_CC_EXT_END
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