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