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#include "StarFontTextureGroup.hpp"
#include "StarTime.hpp"
#include "StarImageProcessing.hpp"
namespace Star {
FontTextureGroup::FontTextureGroup(FontPtr font, TextureGroupPtr textureGroup)
: m_font(move(font)), m_textureGroup(move(textureGroup)) {}
void FontTextureGroup::cleanup(int64_t timeout) {
int64_t currentTime = Time::monotonicMilliseconds();
eraseWhere(m_glyphs, [&](auto const& p) { return currentTime - p.second.time > timeout; });
}
const FontTextureGroup::GlyphTexture& FontTextureGroup::glyphTexture(String::Char c, unsigned size, String const& processingDirectives)
{
auto res = m_glyphs.insert(GlyphDescriptor{c, size, processingDirectives}, GlyphTexture());
if (res.second) {
m_font->setPixelSize(size);
Image image = m_font->render(c);
if (!processingDirectives.empty()) {
Vec2F preSize = Vec2F(image.size());
image = processImageOperations(parseImageOperations(processingDirectives), image);
res.first->second.processingOffset = preSize - Vec2F(image.size());
}
else
res.first->second.processingOffset = Vec2F();
res.first->second.texture = m_textureGroup->create(image);
}
res.first->second.time = Time::monotonicMilliseconds();
return res.first->second;
}
TexturePtr FontTextureGroup::glyphTexturePtr(String::Char c, unsigned size) {
return glyphTexture(c, size, "").texture;
}
TexturePtr FontTextureGroup::glyphTexturePtr(String::Char c, unsigned size, String const& processingDirectives) {
return glyphTexture(c, size, processingDirectives).texture;
}
unsigned FontTextureGroup::glyphWidth(String::Char c, unsigned fontSize) {
m_font->setPixelSize(fontSize);
return m_font->width(c);
}
}
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