Texture2D * FontDefinitionTTF::getTexture(int index)
{
TextFontPagesDef *pPages = _textImages->getPages();
if (!pPages)
return nullptr;
return pPages->getPageAt(index)->getPageTexture();
}
int FontDefinitionTTF::getNumTextures()
{
TextFontPagesDef *pPages = _textImages->getPages();
if (pPages)
{
return pPages->getNumPages();
}
return 0;
}
FontAtlas * FontDefinitionTTF::createFontAtlas()
{
int numTextures = 0;
TextFontPagesDef *pages = m_pTextImages->getPages();
if (pages)
numTextures = pages->getNumPages();
else
return nullptr;
if (!numTextures)
return nullptr;
FontAtlas *retAtlas = new FontAtlas(*m_pTextImages->getFont());
if (!retAtlas)
return 0;
for (int c = 0; c < numTextures; ++c)
{
TextFontPagesDef *pPages = m_pTextImages->getPages();
retAtlas->addTexture(*(pPages->getPageAt(c)->getPageTexture()), c);
}
// set the common line height
retAtlas->setCommonLineHeight(m_fCommonLineHeight * 0.8);
for( auto &item: m_aFontLettersDefinitionUTF16 )
{
if ( item.second.validDefinition )
{
FontLetterDefinition tempDefinition = item.second;
tempDefinition.offsetX = 0;
tempDefinition.anchorX = 0.0f;
tempDefinition.anchorY = 1.0f;
retAtlas->addLetterDefinition(tempDefinition);
}
}
// done here
return retAtlas;
}
bool FontDefinitionTTF::prepareLetterDefinitions(TextFontPagesDef *pageDefs)
{
// get all the pages
TextFontPagesDef *pages = pageDefs;
if (!pages)
return (false);
float maxLineHeight = -1;
// loops all the pages
for (int cPages = 0; cPages < pages->getNumPages(); ++cPages)
{
// loops all the lines in this page
for (int cLines = 0; cLines<pages->getPageAt(cPages)->getNumLines(); ++cLines)
{
float posXUV = 0.0;
float posYUV = pages->getPageAt(cPages)->getLineAt(cLines)->getY();
int charsCounter = 0;
for (int c = 0; c < pages->getPageAt(cPages)->getLineAt(cLines)->getNumGlyph(); ++c)
{
// the current glyph
GlyphDef currentGlyph = pages->getPageAt(cPages)->getLineAt(cLines)->getGlyphAt(c);
// letter width
float letterWidth = currentGlyph.getRect().size.width;
// letter height
float letterHeight = pages->getPageAt(cPages)->getLineAt(cLines)->getHeight();
// add this letter definition
FontLetterDefinition tempDef;
// carloX little hack (this should be done outside the loop)
if (posXUV == 0.0)
posXUV = currentGlyph.getPadding();
tempDef.validDefinition = currentGlyph.isValid();
if (tempDef.validDefinition)
{
tempDef.letteCharUTF16 = currentGlyph.getUTF8Letter();
tempDef.width = letterWidth + currentGlyph.getPadding();
tempDef.height = (letterHeight - 1);
tempDef.U = (posXUV - 1);
tempDef.V = posYUV;
tempDef.offsetX = currentGlyph.getRect().origin.x;
tempDef.offsetY = currentGlyph.getRect().origin.y;
tempDef.textureID = cPages;
tempDef.commonLineHeight = currentGlyph.getCommonHeight();
// take from pixels to points
tempDef.width = tempDef.width / CC_CONTENT_SCALE_FACTOR();
tempDef.height = tempDef.height / CC_CONTENT_SCALE_FACTOR();
tempDef.U = tempDef.U / CC_CONTENT_SCALE_FACTOR();
tempDef.V = tempDef.V / CC_CONTENT_SCALE_FACTOR();
if (tempDef.commonLineHeight>maxLineHeight)
maxLineHeight = tempDef.commonLineHeight;
}
else
{
tempDef.letteCharUTF16 = currentGlyph.getUTF8Letter();
tempDef.commonLineHeight = 0;
tempDef.width = 0;
tempDef.height = 0;
tempDef.U = 0;
tempDef.V = 0;
tempDef.offsetX = 0;
tempDef.offsetY = 0;
tempDef.textureID = 0;
}
// add this definition
addLetterDefinition(tempDef);
// move bounding box to the next letter
posXUV += letterWidth + currentGlyph.getPadding();
// next char in the string
++charsCounter;
}
}
}
// store the common line height
m_fCommonLineHeight = maxLineHeight;
//
return true;
}
