forked from mirror/openmw-tes3mp
Use Morrowind's fonts
scrawl
12 years ago
parent
8bd712cc95
commit
daab4f55a3
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#include "fontloader.hpp"
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#include <OgreResourceGroupManager.h>
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#include <OgreTextureManager.h>
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#include <MyGUI_ResourceManager.h>
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#include <MyGUI_FontManager.h>
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#include <MyGUI_ResourceManualFont.h>
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#include <MyGUI_XmlDocument.h>
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#include <MyGUI_FactoryManager.h>
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#include <components/misc/stringops.hpp>
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namespace
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{
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unsigned long utf8ToUnicode(const std::string& utf8)
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{
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size_t i = 0;
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unsigned long unicode;
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size_t todo;
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unsigned char ch = utf8[i++];
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if (ch <= 0x7F)
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{
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unicode = ch;
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todo = 0;
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}
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else if (ch <= 0xBF)
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{
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throw std::logic_error("not a UTF-8 string");
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}
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else if (ch <= 0xDF)
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{
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unicode = ch&0x1F;
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todo = 1;
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}
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else if (ch <= 0xEF)
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{
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unicode = ch&0x0F;
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todo = 2;
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}
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else if (ch <= 0xF7)
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{
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unicode = ch&0x07;
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todo = 3;
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}
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else
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{
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throw std::logic_error("not a UTF-8 string");
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}
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for (size_t j = 0; j < todo; ++j)
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{
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unsigned char ch = utf8[i++];
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if (ch < 0x80 || ch > 0xBF)
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throw std::logic_error("not a UTF-8 string");
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unicode <<= 6;
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unicode += ch & 0x3F;
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}
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if (unicode >= 0xD800 && unicode <= 0xDFFF)
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throw std::logic_error("not a UTF-8 string");
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if (unicode > 0x10FFFF)
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throw std::logic_error("not a UTF-8 string");
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return unicode;
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}
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}
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namespace MWGui
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{
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FontLoader::FontLoader(ToUTF8::FromType encoding)
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{
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if (encoding == ToUTF8::WINDOWS_1252)
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mEncoding = ToUTF8::CP437;
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else
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mEncoding = encoding;
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}
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void FontLoader::loadAllFonts()
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{
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Ogre::StringVector groups = Ogre::ResourceGroupManager::getSingleton().getResourceGroups ();
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for (Ogre::StringVector::iterator it = groups.begin(); it != groups.end(); ++it)
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{
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Ogre::StringVectorPtr resourcesInThisGroup = Ogre::ResourceGroupManager::getSingleton ().findResourceNames (*it, "*.fnt");
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for (Ogre::StringVector::iterator resource = resourcesInThisGroup->begin(); resource != resourcesInThisGroup->end(); ++resource)
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{
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loadFont(*resource);
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}
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}
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}
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typedef struct
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{
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float x;
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float y;
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} Point;
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typedef struct
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{
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float u1; // appears unused, always 0
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Point top_left;
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Point top_right;
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Point bottom_left;
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Point bottom_right;
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float width;
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float height;
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float u2; // appears unused, always 0
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float kerning;
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float ascent;
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} GlyphInfo;
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void FontLoader::loadFont(const std::string &fileName)
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{
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Ogre::DataStreamPtr file = Ogre::ResourceGroupManager::getSingleton().openResource(fileName);
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float fontSize;
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int one;
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file->read(&fontSize, sizeof(fontSize));
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file->read(&one, sizeof(int));
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assert(one == 1);
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file->read(&one, sizeof(int));
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assert(one == 1);
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char name_[284];
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file->read(name_, sizeof(name_));
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std::string name(name_);
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GlyphInfo data[256];
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file->read(data, sizeof(data));
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file->close();
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// Create the font texture
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std::string bitmapFilename = "Fonts/" + std::string(name) + ".tex";
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Ogre::DataStreamPtr bitmapFile = Ogre::ResourceGroupManager::getSingleton().openResource(bitmapFilename);
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int width, height;
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bitmapFile->read(&width, sizeof(int));
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bitmapFile->read(&height, sizeof(int));
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std::vector<Ogre::uchar> textureData;
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textureData.resize(width*height*4);
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bitmapFile->read(&textureData[0], width*height*4);
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bitmapFile->close();
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std::string textureName = name;
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Ogre::Image image;
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image.loadDynamicImage(&textureData[0], width, height, Ogre::PF_BYTE_RGBA);
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Ogre::TexturePtr texture = Ogre::TextureManager::getSingleton().createManual(textureName,
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Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
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Ogre::TEX_TYPE_2D,
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width, height, 0, Ogre::PF_BYTE_RGBA);
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texture->loadImage(image);
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// Register the font with MyGUI
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MyGUI::ResourceManualFont* font = static_cast<MyGUI::ResourceManualFont*>(
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MyGUI::FactoryManager::getInstance().createObject("Resource", "ResourceManualFont"));
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// We need to emulate loading from XML because the data members are private as of mygui 3.2.0
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MyGUI::xml::Document xmlDocument;
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MyGUI::xml::ElementPtr root = xmlDocument.createRoot("ResourceManualFont");
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if (name.size() >= 5 && Misc::StringUtils::ciEqual(name.substr(0, 5), "magic"))
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root->addAttribute("name", "Magic Cards");
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else if (name.size() >= 7 && Misc::StringUtils::ciEqual(name.substr(0, 7), "century"))
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root->addAttribute("name", "Century Gothic");
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else if (name.size() >= 7 && Misc::StringUtils::ciEqual(name.substr(0, 7), "daedric"))
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root->addAttribute("name", "Daedric");
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else
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return; // no point in loading it, since there is no way of using additional fonts
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MyGUI::xml::ElementPtr defaultHeight = root->createChild("Property");
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defaultHeight->addAttribute("key", "DefaultHeight");
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defaultHeight->addAttribute("value", fontSize);
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MyGUI::xml::ElementPtr source = root->createChild("Property");
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source->addAttribute("key", "Source");
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source->addAttribute("value", std::string(textureName));
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MyGUI::xml::ElementPtr codes = root->createChild("Codes");
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for(int i = 0; i < 256; i++)
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{
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int x1 = data[i].top_left.x*width;
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int y1 = data[i].top_left.y*height;
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int w = data[i].top_right.x*width - x1;
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int h = data[i].bottom_left.y*height - y1;
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ToUTF8::Utf8Encoder encoder(mEncoding);
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unsigned long unicodeVal = utf8ToUnicode(encoder.getUtf8(std::string(1, (unsigned char)(i))));
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MyGUI::xml::ElementPtr code = codes->createChild("Code");
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code->addAttribute("index", unicodeVal);
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code->addAttribute("coord", MyGUI::utility::toString(x1) + " "
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+ MyGUI::utility::toString(y1) + " "
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+ MyGUI::utility::toString(w) + " "
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+ MyGUI::utility::toString(h));
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code->addAttribute("advance", data[i].width);
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code->addAttribute("bearing", MyGUI::utility::toString(data[i].kerning) + " "
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+ MyGUI::utility::toString((fontSize-data[i].ascent)));
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// ASCII vertical bar, use this as text input cursor
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if (i == 124)
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{
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MyGUI::xml::ElementPtr cursorCode = codes->createChild("Code");
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cursorCode->addAttribute("index", MyGUI::FontCodeType::Cursor);
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cursorCode->addAttribute("coord", MyGUI::utility::toString(x1) + " "
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+ MyGUI::utility::toString(y1) + " "
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+ MyGUI::utility::toString(w) + " "
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+ MyGUI::utility::toString(h));
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cursorCode->addAttribute("advance", data[i].width);
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cursorCode->addAttribute("bearing", MyGUI::utility::toString(data[i].kerning) + " "
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+ MyGUI::utility::toString((fontSize-data[i].ascent)));
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}
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}
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// These are required as well, but the fonts don't provide them
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for (int i=0; i<3; ++i)
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{
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MyGUI::FontCodeType::Enum type;
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if(i == 0)
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type = MyGUI::FontCodeType::Selected;
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else if (i == 1)
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type = MyGUI::FontCodeType::SelectedBack;
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else if (i == 2)
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type = MyGUI::FontCodeType::NotDefined;
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MyGUI::xml::ElementPtr cursorCode = codes->createChild("Code");
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cursorCode->addAttribute("index", type);
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cursorCode->addAttribute("coord", "0 0 0 0");
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cursorCode->addAttribute("advance", "0");
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cursorCode->addAttribute("bearing", "0 0");
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}
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font->deserialization(root, MyGUI::Version(3,2,0));
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MyGUI::ResourceManager::getInstance().addResource(font);
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}
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}
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@ -0,0 +1,25 @@
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#ifndef MWGUI_FONTLOADER_H
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#define MWGUI_FONTLOADER_H
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#include <components/to_utf8/to_utf8.hpp>
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namespace MWGui
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{
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/// @brief loads Morrowind's .fnt/.tex fonts for use with MyGUI and Ogre
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class FontLoader
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{
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public:
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FontLoader (ToUTF8::FromType encoding);
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void loadAllFonts ();
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private:
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ToUTF8::FromType mEncoding;
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void loadFont (const std::string& fileName);
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};
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}
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#endif
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