MyGUI_ResourceManualFont.cpp

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/*
 * This source file is part of MyGUI. For the latest info, see http://mygui.info/
 * Distributed under the MIT License
 * (See accompanying file COPYING.MIT or copy at http://opensource.org/licenses/MIT)
 */
 
#include "MyGUI_Precompiled.h"
#include "MyGUI_ResourceManualFont.h"
#include "MyGUI_SkinManager.h"
#include "MyGUI_RenderManager.h"
#include "MyGUI_TextureUtility.h"
 
namespace MyGUI
{
 
    const GlyphInfo* ResourceManualFont::getGlyphInfo(Char _id) const
    {
        CharMap::const_iterator iter = mCharMap.find(_id);
 
        if (iter != mCharMap.end())
            return &iter->second;
 
        return mSubstituteGlyphInfo;
    }
 
    void ResourceManualFont::loadTexture()
    {
        if (mTexture == nullptr)
        {
            RenderManager& render = RenderManager::getInstance();
            mTexture = render.getTexture(mSource);
            if (mTexture == nullptr)
            {
                mTexture = render.createTexture(mSource);
                if (mTexture != nullptr)
                    mTexture->loadFromFile(mSource);
            }
        }
    }
 
    void ResourceManualFont::deserialization(xml::ElementPtr _node, Version _version)
    {
        Base::deserialization(_node, _version);
 
        xml::ElementEnumerator node = _node->getElementEnumerator();
        while (node.next())
        {
            if (node->getName() == "Property")
            {
                std::string_view key = node->findAttribute("key");
                std::string_view value = node->findAttribute("value");
                if (key == "Source")
                    mSource = value;
                else if (key == "DefaultHeight")
                    mDefaultHeight = utility::parseInt(value);
                else if (key == "Shader")
                    mShader = value;
            }
        }
 
        loadTexture();
 
        if (mTexture != nullptr)
        {
            if (!mShader.empty())
                mTexture->setShader(mShader);
            int textureWidth = mTexture->getWidth();
            int textureHeight = mTexture->getHeight();
 
            node = _node->getElementEnumerator();
            while (node.next())
            {
                if (node->getName() == "Codes")
                {
                    xml::ElementEnumerator element = node->getElementEnumerator();
                    while (element.next("Code"))
                    {
                        std::string value;
                        // описане глифов
                        if (element->findAttribute("index", value))
                        {
                            Char id = 0;
                            if (value == "cursor")
                                id = static_cast<Char>(FontCodeType::Cursor);
                            else if (value == "selected")
                                id = static_cast<Char>(FontCodeType::Selected);
                            else if (value == "selected_back")
                                id = static_cast<Char>(FontCodeType::SelectedBack);
                            else if (value == "substitute")
                                id = static_cast<Char>(FontCodeType::NotDefined);
                            else
                                id = utility::parseUInt(value);
 
                            FloatPoint bearing(utility::parseValue<FloatPoint>(element->findAttribute("bearing")));
 
                            // texture coordinates
                            FloatCoord coord(utility::parseValue<FloatCoord>(element->findAttribute("coord")));
 
                            // glyph size, default to texture coordinate size
                            std::string sizeString;
                            FloatSize size(coord.width, coord.height);
                            if (element->findAttribute("size", sizeString))
                            {
                                size = utility::parseValue<FloatSize>(sizeString);
                            }
 
                            auto advanceAttribute = element->findAttribute("advance");
                            float advance = size.width;
                            if (!advanceAttribute.empty())
                                advance = utility::parseValue<float>(advanceAttribute);
 
                            mCharMap.emplace(
                                id,
                                GlyphInfo{
                                    id,
                                    size.width,
                                    size.height,
                                    advance,
                                    bearing.left,
                                    bearing.top,
                                    FloatRect{
                                        coord.left / textureWidth,
                                        coord.top / textureHeight,
                                        coord.right() / textureWidth,
                                        coord.bottom() / textureHeight}});
 
                            if (id == FontCodeType::NotDefined)
                                mSubstituteGlyphInfo = &mCharMap.at(FontCodeType::NotDefined);
                        }
                    }
                }
            }
        }
    }
 
    ITexture* ResourceManualFont::getTextureFont() const
    {
        return mTexture;
    }
 
    int ResourceManualFont::getDefaultHeight() const
    {
        return mDefaultHeight;
    }
 
    void ResourceManualFont::setSource(std::string_view value)
    {
        mTexture = nullptr;
        mSource = value;
        loadTexture();
    }
 
    void ResourceManualFont::setShader(std::string_view value)
    {
        mShader = value;
        if (mTexture != nullptr)
            mTexture->setShader(mShader);
    }
 
    void ResourceManualFont::setTexture(ITexture* texture)
    {
        mTexture = texture;
        mSource.clear();
    }
 
    void ResourceManualFont::setDefaultHeight(int value)
    {
        mDefaultHeight = value;
    }
 
    void ResourceManualFont::addGlyphInfo(Char id, const GlyphInfo& info)
    {
        GlyphInfo& inserted = mCharMap.insert(CharMap::value_type(id, info)).first->second;
 
        if (id == FontCodeType::NotDefined)
            mSubstituteGlyphInfo = &inserted;
    }
 
} // namespace MyGUI