RedCore/cocos2d/cocos/ui/UIText.cpp

/****************************************************************************
Copyright (c) 2013-2017 Chukong Technologies Inc.

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
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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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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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THE SOFTWARE.
****************************************************************************/

#include "ui/UIText.h"
#include "2d/CCLabel.h"
#include "platform/CCFileUtils.h"

NS_CC_BEGIN

namespace ui {

static const int LABEL_RENDERER_Z = (-1);

IMPLEMENT_CLASS_GUI_INFO(Text)

Text::Text():
_touchScaleChangeEnabled(false),
_normalScaleValueX(1.0f),
_normalScaleValueY(1.0f),
_fontName("Thonburi"),
_fontSize(10.f),
_onSelectedScaleOffset(0.5),
_labelRenderer(nullptr),
_labelRendererAdaptDirty(true),
_type(Type::SYSTEM)
{
}

Text::~Text()
{

}

Text* Text::create()
{
    Text* widget = new (std::nothrow) Text();
    if (widget && widget->init())
    {
        widget->autorelease();
        return widget;
    }
    CC_SAFE_DELETE(widget);
    return nullptr;
}

bool Text::init()
{
    if (Widget::init())
    {
        return true;
    }
    return false;
}

Text* Text::create(const std::string &textContent, const std::string &fontName, float fontSize)
{
    Text *text = new (std::nothrow) Text;
    if (text && text->init(textContent, fontName, fontSize))
    {
        text->autorelease();
        return text;
    }
    CC_SAFE_DELETE(text);
    return nullptr;
}

bool Text::init(const std::string &textContent, const std::string &fontName, float fontSize)
{
    bool ret = true;
    do
    {
        if (!Widget::init())
        {
            ret = false;
            break;
        }
        this->setFontName(fontName);
        this->setFontSize(fontSize);
        this->setString(textContent);
    } while (0);
    return ret;
}

void Text::initRenderer()
{
    _labelRenderer = Label::create();
    addProtectedChild(_labelRenderer, LABEL_RENDERER_Z, -1);
}


void Text::setString(const std::string &text)
{
    if (text == _labelRenderer->getString())
    {
        return;
    }
    _labelRenderer->setString(text);
    updateContentSizeWithTextureSize(_labelRenderer->getContentSize());
    _labelRendererAdaptDirty = true;
}

const std::string& Text::getString() const
{
    return _labelRenderer->getString();
}

ssize_t Text::getStringLength()const
{
    return _labelRenderer->getStringLength();
}

void Text::setFontSize(float size)
{
    if (_type == Type::SYSTEM)
    {
        _labelRenderer->setSystemFontSize(size);
    }
    else
    {
        TTFConfig config = _labelRenderer->getTTFConfig();
        config.fontSize = size;
        _labelRenderer->setTTFConfig(config);
    }
    _fontSize = size;
    updateContentSizeWithTextureSize(_labelRenderer->getContentSize());
    _labelRendererAdaptDirty = true;
}

float Text::getFontSize()const
{
    return _fontSize;
}

void Text::setFontName(const std::string& name)
{
    if(FileUtils::getInstance()->isFileExist(name))
    {
        TTFConfig config = _labelRenderer->getTTFConfig();
        config.fontFilePath = name;
        config.fontSize = _fontSize;
        _labelRenderer->setTTFConfig(config);
        _type = Type::TTF;
    }
    else
    {
        _labelRenderer->setSystemFontName(name);
        if (_type == Type::TTF)
        {
            _labelRenderer->requestSystemFontRefresh();
        }
        _type = Type::SYSTEM;
    }
    _fontName = name;
    updateContentSizeWithTextureSize(_labelRenderer->getContentSize());
    _labelRendererAdaptDirty = true;
}

const std::string& Text::getFontName()const
{
    return _fontName;
}

Text::Type Text::getType() const
{
    return _type;
}

void Text::setTextAreaSize(const Size &size)
{
    _labelRenderer->setDimensions(size.width,size.height);
    if (!_ignoreSize)
    {
        _customSize=size;
    }
    updateContentSizeWithTextureSize(_labelRenderer->getContentSize());
    _labelRendererAdaptDirty = true;
}

const Size& Text::getTextAreaSize()const
{
    return _labelRenderer->getDimensions();
}

void Text::setTextHorizontalAlignment(TextHAlignment alignment)
{
    _labelRenderer->setHorizontalAlignment(alignment);
}

TextHAlignment Text::getTextHorizontalAlignment()const
{
    return _labelRenderer->getHorizontalAlignment();
}

void Text::setTextVerticalAlignment(TextVAlignment alignment)
{
    _labelRenderer->setVerticalAlignment(alignment);
}

TextVAlignment Text::getTextVerticalAlignment()const
{
    return _labelRenderer->getVerticalAlignment();
}

void Text::setTextColor(const Color4B color)
{
    _labelRenderer->setTextColor(color);
}

const Color4B& Text::getTextColor() const
{
    return _labelRenderer->getTextColor();
}

void Text::setTouchScaleChangeEnabled(bool enable)
{
    _touchScaleChangeEnabled = enable;
}

bool Text::isTouchScaleChangeEnabled()const
{
    return _touchScaleChangeEnabled;
}

void Text::onPressStateChangedToNormal()
{
    if (!_touchScaleChangeEnabled)
    {
        return;
    }
    _labelRenderer->setScaleX(_normalScaleValueX);
    _labelRenderer->setScaleY(_normalScaleValueY);
}

void Text::onPressStateChangedToPressed()
{
    if (!_touchScaleChangeEnabled)
    {
        return;
    }
    _labelRenderer->setScaleX(_normalScaleValueX + _onSelectedScaleOffset);
    _labelRenderer->setScaleY(_normalScaleValueY + _onSelectedScaleOffset);
}

void Text::onPressStateChangedToDisabled()
{

}

void Text::onSizeChanged()
{
    Widget::onSizeChanged();
    _labelRendererAdaptDirty = true;
}

void Text::adaptRenderers()
{
    if (_labelRendererAdaptDirty)
    {
        labelScaleChangedWithSize();
        _labelRendererAdaptDirty = false;
    }
}

Size Text::getVirtualRendererSize() const
{
    return _labelRenderer->getContentSize();
}

Size Text::getAutoRenderSize()
{
    Size virtualSize = _labelRenderer->getContentSize();
    if (!_ignoreSize)
    {
        _labelRenderer->setDimensions(0, 0);
        virtualSize = _labelRenderer->getContentSize();
        _labelRenderer->setDimensions(_contentSize.width, _contentSize.height);
    }

    return virtualSize;
}

Node* Text::getVirtualRenderer()
{
    return _labelRenderer;
}

void Text::labelScaleChangedWithSize()
{
    if (_ignoreSize)
    {
        _labelRenderer->setScale(1.0f);
        _normalScaleValueX = _normalScaleValueY = 1.0f;
    }
    else
    {
        _labelRenderer->setDimensions(_contentSize.width,_contentSize.height);
        Size textureSize = _labelRenderer->getContentSize();
        if (textureSize.width <= 0.0f || textureSize.height <= 0.0f)
        {
            _labelRenderer->setScale(1.0f);
            return;
        }
        float scaleX = _contentSize.width / textureSize.width;
        float scaleY = _contentSize.height / textureSize.height;
        _labelRenderer->setScaleX(scaleX);
        _labelRenderer->setScaleY(scaleY);
        _normalScaleValueX = scaleX;
        _normalScaleValueY = scaleY;
    }
    _labelRenderer->setPosition(_contentSize.width / 2.0f, _contentSize.height / 2.0f);
}

std::string Text::getDescription() const
{
    return "Label";
}

void Text::enableShadow(const Color4B& shadowColor,const Size &offset, int blurRadius)
{
    _labelRenderer->enableShadow(shadowColor, offset, blurRadius);
}

void Text::enableOutline(const Color4B& outlineColor,int outlineSize)
{
    _labelRenderer->enableOutline(outlineColor, outlineSize);
    updateContentSizeWithTextureSize(_labelRenderer->getContentSize());
    _labelRendererAdaptDirty = true;
}

void Text::enableGlow(const Color4B& glowColor)
{
    if (_type == Type::TTF)
        _labelRenderer->enableGlow(glowColor);
}

void Text::disableEffect()
{
    _labelRenderer->disableEffect();
    updateContentSizeWithTextureSize(_labelRenderer->getContentSize());
    _labelRendererAdaptDirty = true;
}

void Text::disableEffect(LabelEffect effect)
{
    _labelRenderer->disableEffect(effect);
    //only outline effect will affect the content size of label
    if(LabelEffect::OUTLINE == effect)
    {
        updateContentSizeWithTextureSize(_labelRenderer->getContentSize());
        _labelRendererAdaptDirty = true;
    }
}

bool Text::isShadowEnabled() const
{
    return _labelRenderer->isShadowEnabled();
}
Size Text::getShadowOffset() const
{
    return _labelRenderer->getShadowOffset();
}
float Text::getShadowBlurRadius() const
{
    return _labelRenderer->getShadowBlurRadius();
}
Color4B Text::getShadowColor() const
{
    Color4F effect = _labelRenderer->getShadowColor();
    return Color4B(effect.r * 255, effect.g * 255, effect.b * 255, effect.a * 255);
}

int Text::getOutlineSize() const
{
    return _labelRenderer->getOutlineSize();
}
LabelEffect Text::getLabelEffectType() const
{
    return _labelRenderer->getLabelEffectType();
}
Color4B Text::getEffectColor() const
{
    Color4F effect = _labelRenderer->getEffectColor();
    return Color4B(effect.r * 255, effect.g * 255, effect.b * 255, effect.a * 255);
}

Sprite * Text::getLetter(int lettetIndex)
{
    return _labelRenderer->getLetter(lettetIndex);
}

Widget* Text::createCloneInstance()
{
    return Text::create();
}

void Text::copySpecialProperties(Widget *widget)
{
    Text* label = dynamic_cast<Text*>(widget);
    if (label)
    {
        setFontName(label->_fontName);
        setFontSize(label->getFontSize());
        setTextColor(label->getTextColor());
        setString(label->getString());
        setTouchScaleChangeEnabled(label->_touchScaleChangeEnabled);
        setTextHorizontalAlignment(label->_labelRenderer->getHorizontalAlignment());
        setTextVerticalAlignment(label->_labelRenderer->getVerticalAlignment());
        setTextAreaSize(label->_labelRenderer->getDimensions());
        setContentSize(label->getContentSize());

        LabelEffect effectType = label->getLabelEffectType();
        if (effectType == LabelEffect::GLOW)
        {
            enableGlow(label->getEffectColor());
        }
        else if (effectType == LabelEffect::OUTLINE)
        {
            enableOutline(label->getEffectColor(),label->getOutlineSize());
        }
        if (label->isShadowEnabled())
        {
            enableShadow(label->getShadowColor(),label->getShadowOffset(),label->getShadowBlurRadius());
        }
    }
}

}

NS_CC_END