axmol/extensions/GUI/CCControlExtension/CCControlSlider.cpp

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/*
* Copyright (c) 2012 cocos2d-x.org
* https://axis-project.github.io/
*
* Copyright 2011 Yannick Loriot.
* http://yannickloriot.com
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*
* Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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*
* 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:
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*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
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*
* 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.
*
* Converted to c++ / cocos2d-x by Angus C
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*
*/
#include "CCControlSlider.h"
#include "base/CCTouch.h"
#include "base/CCDirector.h"
NS_AX_EXT_BEGIN
ControlSlider::ControlSlider()
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: _value(0.0f)
, _minimumValue(0.0f)
, _maximumValue(0.0f)
, _minimumAllowedValue(0.0f)
, _maximumAllowedValue(0.0f)
, _thumbSprite(nullptr)
, _selectedThumbSprite(nullptr)
, _progressSprite(nullptr)
, _backgroundSprite(nullptr)
{}
ControlSlider::~ControlSlider()
{
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AX_SAFE_RELEASE(_thumbSprite);
AX_SAFE_RELEASE(_selectedThumbSprite);
AX_SAFE_RELEASE(_progressSprite);
AX_SAFE_RELEASE(_backgroundSprite);
}
ControlSlider* ControlSlider::create(const char* bgFile, const char* progressFile, const char* thumbFile)
{
// Prepare background for slider
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Sprite* backgroundSprite = Sprite::create(bgFile);
// Prepare progress for slider
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Sprite* progressSprite = Sprite::create(progressFile);
// Prepare thumb (menuItem) for slider
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Sprite* thumbSprite = Sprite::create(thumbFile);
return ControlSlider::create(backgroundSprite, progressSprite, thumbSprite);
}
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ControlSlider* ControlSlider::create(const char* bgFile,
const char* progressFile,
const char* thumbFile,
const char* selectedThumbSpriteFile)
{
// Prepare background for slider
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Sprite* backgroundSprite = Sprite::create(bgFile);
// Prepare progress for slider
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Sprite* progressSprite = Sprite::create(progressFile);
// Prepare thumb (menuItem) for slider
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Sprite* thumbSprite = Sprite::create(thumbFile);
// Prepare selected thumb (menuItem) for slider
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Sprite* selectedThumbSprite = Sprite::create(selectedThumbSpriteFile);
return ControlSlider::create(backgroundSprite, progressSprite, thumbSprite, selectedThumbSprite);
}
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ControlSlider* ControlSlider::create(Sprite* backgroundSprite, Sprite* pogressSprite, Sprite* thumbSprite)
{
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ControlSlider* pRet = new ControlSlider();
pRet->initWithSprites(backgroundSprite, pogressSprite, thumbSprite);
pRet->autorelease();
return pRet;
}
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ControlSlider* ControlSlider::create(Sprite* backgroundSprite,
Sprite* pogressSprite,
Sprite* thumbSprite,
Sprite* selectedThumbSprite)
{
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ControlSlider* pRet = new ControlSlider();
pRet->initWithSprites(backgroundSprite, pogressSprite, thumbSprite, selectedThumbSprite);
pRet->autorelease();
return pRet;
}
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bool ControlSlider::initWithSprites(Sprite* backgroundSprite, Sprite* progressSprite, Sprite* thumbSprite)
{
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Sprite* selectedThumbSprite = Sprite::createWithTexture(thumbSprite->getTexture(), thumbSprite->getTextureRect());
selectedThumbSprite->setColor(Color3B::GRAY);
return this->initWithSprites(backgroundSprite, progressSprite, thumbSprite, selectedThumbSprite);
}
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bool ControlSlider::initWithSprites(Sprite* backgroundSprite,
Sprite* progressSprite,
Sprite* thumbSprite,
Sprite* selectedThumbSprite)
{
if (Control::init())
{
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AXASSERT(backgroundSprite, "Background sprite must be not nil");
AXASSERT(progressSprite, "Progress sprite must be not nil");
AXASSERT(thumbSprite, "Thumb sprite must be not nil");
AXASSERT(selectedThumbSprite, "Thumb sprite must be not nil");
setIgnoreAnchorPointForPosition(false);
this->setBackgroundSprite(backgroundSprite);
this->setProgressSprite(progressSprite);
this->setThumbSprite(thumbSprite);
this->setSelectedThumbSprite(selectedThumbSprite);
// Defines the content size
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Rect maxRect = ControlUtils::RectUnion(backgroundSprite->getBoundingBox(), thumbSprite->getBoundingBox());
setContentSize(Size(maxRect.size.width, maxRect.size.height));
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// Add the slider background
_backgroundSprite->setAnchorPoint(Vec2(0.5f, 0.5f));
_backgroundSprite->setPosition(this->getContentSize().width / 2, this->getContentSize().height / 2);
addChild(_backgroundSprite);
// Add the progress bar
_progressSprite->setAnchorPoint(Vec2(0.0f, 0.5f));
_progressSprite->setPosition(0.0f, this->getContentSize().height / 2);
addChild(_progressSprite);
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// Add the slider thumb
_thumbSprite->setPosition(0.0f, this->getContentSize().height / 2);
addChild(_thumbSprite);
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_selectedThumbSprite->setPosition(0.0f, this->getContentSize().height / 2);
_selectedThumbSprite->setVisible(false);
addChild(_selectedThumbSprite);
// Init default values
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_minimumValue = 0.0f;
_maximumValue = 1.0f;
setValue(_minimumValue);
return true;
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}
else
{
return false;
}
}
void ControlSlider::setEnabled(bool enabled)
{
Control::setEnabled(enabled);
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if (_thumbSprite != nullptr)
{
_thumbSprite->setOpacity((enabled) ? 255 : 128);
}
}
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void ControlSlider::setValue(float value)
{
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// set new value with sentinel
if (value < _minimumValue)
{
value = _minimumValue;
}
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if (value > _maximumValue)
{
value = _maximumValue;
}
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_value = value;
this->needsLayout();
this->sendActionsForControlEvents(Control::EventType::VALUE_CHANGED);
}
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void ControlSlider::setMinimumValue(float minimumValue)
{
_minimumValue = minimumValue;
_minimumAllowedValue = minimumValue;
if (_minimumValue >= _maximumValue)
{
_maximumValue = _minimumValue + 1.0f;
}
setValue(_value);
}
void ControlSlider::setMaximumValue(float maximumValue)
{
_maximumValue = maximumValue;
_maximumAllowedValue = maximumValue;
if (_maximumValue <= _minimumValue)
{
_minimumValue = _maximumValue - 1.0f;
}
setValue(_value);
}
bool ControlSlider::isTouchInside(Touch* touch)
{
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Vec2 touchLocation = touch->getLocation();
touchLocation = this->getParent()->convertToNodeSpace(touchLocation);
Rect rect = this->getBoundingBox();
rect.size.width += _thumbSprite->getContentSize().width;
rect.origin.x -= _thumbSprite->getContentSize().width / 2;
return rect.containsPoint(touchLocation);
}
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Vec2 ControlSlider::locationFromTouch(Touch* touch)
{
Vec2 touchLocation = touch->getLocation(); // Get the touch position
touchLocation = this->convertToNodeSpace(touchLocation); // Convert to the node space of this class
if (touchLocation.x < 0)
{
touchLocation.x = 0;
}
else if (touchLocation.x > _backgroundSprite->getContentSize().width)
{
touchLocation.x = _backgroundSprite->getContentSize().width;
}
return touchLocation;
}
bool ControlSlider::onTouchBegan(Touch* touch, Event* /*pEvent*/)
{
if (!isTouchInside(touch) || !isEnabled() || !isVisible())
{
return false;
}
Vec2 location = locationFromTouch(touch);
sliderBegan(location);
return true;
}
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void ControlSlider::onTouchMoved(Touch* pTouch, Event* /*pEvent*/)
{
Vec2 location = locationFromTouch(pTouch);
sliderMoved(location);
}
void ControlSlider::onTouchEnded(Touch* /*pTouch*/, Event* /*pEvent*/)
{
sliderEnded(Vec2::ZERO);
}
void ControlSlider::needsLayout()
{
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if (nullptr == _thumbSprite || nullptr == _selectedThumbSprite || nullptr == _backgroundSprite ||
nullptr == _progressSprite)
{
return;
}
// Update thumb position for new value
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float percent = (_value - _minimumValue) / (_maximumValue - _minimumValue);
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Vec2 pos = _thumbSprite->getPosition();
pos.x = percent * _backgroundSprite->getContentSize().width;
_thumbSprite->setPosition(pos);
_selectedThumbSprite->setPosition(pos);
// Stretches content proportional to newLevel
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Rect textureRect = _progressSprite->getTextureRect();
textureRect = Rect(textureRect.origin.x, textureRect.origin.y, pos.x, textureRect.size.height);
_progressSprite->setTextureRect(textureRect, _progressSprite->isTextureRectRotated(), textureRect.size);
}
void ControlSlider::sliderBegan(Vec2 location)
{
this->setSelected(true);
_thumbSprite->setVisible(false);
_selectedThumbSprite->setVisible(true);
setValue(valueForLocation(location));
}
void ControlSlider::sliderMoved(Vec2 location)
{
setValue(valueForLocation(location));
}
void ControlSlider::sliderEnded(Vec2 /*location*/)
{
if (this->isSelected())
{
setValue(valueForLocation(_thumbSprite->getPosition()));
}
_thumbSprite->setVisible(true);
_selectedThumbSprite->setVisible(false);
this->setSelected(false);
}
float ControlSlider::valueForLocation(Vec2 location)
{
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float percent = location.x / _backgroundSprite->getContentSize().width;
return MAX(MIN(_minimumValue + percent * (_maximumValue - _minimumValue), _maximumAllowedValue),
_minimumAllowedValue);
}
NS_AX_EXT_END